TW201732503A - Writing sheet for touch panel pen, touch panel, touch panel system, display device, and sorting method for writing sheet for touch panel pen - Google Patents

Writing sheet for touch panel pen, touch panel, touch panel system, display device, and sorting method for writing sheet for touch panel pen Download PDF

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TW201732503A
TW201732503A TW105139787A TW105139787A TW201732503A TW 201732503 A TW201732503 A TW 201732503A TW 105139787 A TW105139787 A TW 105139787A TW 105139787 A TW105139787 A TW 105139787A TW 201732503 A TW201732503 A TW 201732503A
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touch panel
writing
pen
panel pen
sheet
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TW105139787A
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TWI712922B (en
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田谷周望
皆越清馨
松橋岳
島津知彦
大鎗嘉晃
外田鉄兵
江口淳哉
佐藤光
恒川雅行
渡辺健太
大木賢治
秦健太郎
戶部伸之
小林篤弘
宮田涼平
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大日本印刷股份有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Laminated Bodies (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

Provided is a writing sheet for a touch panel pen such that if the apparent Young's modulus of the structure of the shaft and the pen tip is taken as E, the diameter of the pen tip is taken as D, and the arithmetic mean height of the profile curve at unit measurement segments (0.5mm) of the pen tip is taken as Pa, then the value X derived from X(MN/m)=[E*D*D]/Pa does not exceed 500 MN/m. The writing sheet has a surface wherein the maximum height roughness Rz0.8 and the maximum valley depth Rv0.8 of the roughness curve, as measured according to JIS B 0601:2001 with a cutoff value of 0.8mm, and the local peak average spacing S2.5, as measured according to JIS B 0601:1994 with a cutoff value of 2.5mm, satisfy the conditions 0.35 ≤ Rv0.8/Rz0.8 ≤ 0.60 and 0.5mm ≤ S2.5 ≤ 0.30mm.

Description

觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置，以及觸控面板筆用書寫片之揀選方法 Touch panel pen writing piece, touch panel, touch panel system and display device, and picking method of touch panel pen writing piece

本發明係關於一種觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置，以及觸控面板筆用書寫片之揀選方法。 The invention relates to a touch panel pen writing piece, a touch panel, a touch panel system and a display device, and a method for selecting a touch panel pen writing piece.

近年來，亦開始將觸控面板搭載於許多之行動資訊終端上，而流量增加。有時於觸控面板之表面為了各種目的而貼合表面保護片。 In recent years, touch panels have also been installed on many mobile information terminals, and traffic has increased. The surface protection sheet may be attached to the surface of the touch panel for various purposes.

關於先前主流之電阻膜式觸控面板，由於進行如用手指或筆反覆進行碰觸之操作，故而對於表面保護片，要求高度之耐刮傷性。 Regarding the conventional mainstream resistive touch panel, since the operation of touching with a finger or a pen is repeated, a high scratch resistance is required for the surface protective sheet.

另一方面，對於目前之作為主流之靜電電容式觸控面板之表面保護片，要求用手指進行操作時之滑動性。其原因在於：由於先前之電阻膜式無法同時檢測多個部位，故而沒有於畫面上移動手指之情況，但靜電電容式觸控面板可同時檢測多個部位，而於畫面上移動手指之操作較多。 On the other hand, for the surface protection sheet of the current capacitive touch panel which is the mainstream, the slidability when operating with a finger is required. The reason is that since the previous resistive film type cannot detect multiple parts at the same time, the finger is not moved on the screen, but the capacitive touch panel can simultaneously detect multiple parts, and the operation of moving the finger on the screen is more many.

又，對於電阻膜式及靜電電容式之觸控面板，均要求觸控面板用之表面保護片有如下性能：防止用手指操作時附著指紋，或者容易擦掉所附著之指紋。 Moreover, for the resistive film type and the capacitive touch panel, the surface protective sheet for the touch panel is required to have the following properties: to prevent fingerprints from being attached when the finger is operated, or to easily erase the attached fingerprint.

作為如上述之觸控面板用之表面保護片，例如提出有專利文 獻1~2。 As a surface protection sheet for a touch panel as described above, for example, a patent document is proposed. Offer 1~2.

[先前技術文獻] [Previous Technical Literature]

[專利文獻] [Patent Literature]

[專利文獻1]日本專利特開2015-114939號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2015-114939

[專利文獻2]日本專利特開2014-109712號公報 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2014-109712

靜電電容式觸控面板由於要測量靜電電容之變化並識別所碰觸之部位，故而接觸物需要一定之導電性。因此，於靜電電容式觸控面板之出現當初，僅研究用手指之操作性，而未研究藉由觸控面板筆描繪文字或圖畫等之書寫性。即便於電阻膜式觸控面板中，使用觸控面板筆時之操作亦以碰觸為主流，而描繪文字或圖畫時之書寫性未受到重視。 Since the capacitive touch panel is required to measure the change in electrostatic capacitance and identify the portion touched, the contact material needs a certain conductivity. Therefore, in the initial appearance of the capacitive touch panel, only the operability of the finger was studied, and the writing property of drawing characters or drawings by the touch panel pen was not studied. That is, in the resistive film type touch panel, the operation when the touch panel pen is used is also the touch, and the writing property when drawing characters or pictures is not taken seriously.

然而，近年來，由於開始提出可書寫輸入至靜電電容式觸控面板或電磁感應式觸控面板之觸控面板筆；及對應利用觸控面板筆之文字輸入或繪圖之應用軟體增加，故而對於觸控面板用之表面保護片，要求有利用觸控面板筆之良好書寫感。 However, in recent years, since the touch panel pen that can write input to the capacitive touch panel or the electromagnetic induction touch panel has been proposed, and the application software corresponding to the text input or drawing using the touch panel pen has increased, A surface protection sheet for a touch panel requires a good writing feeling using a touch panel pen.

然而，關於先前所提出之專利文獻1~2之觸控面板用之表面保護片，未對利用觸控面板筆之書寫感做任何研究。 However, regarding the surface protection sheets for the touch panel of Patent Documents 1 to 2 which have been proposed previously, no research has been made on the writing feeling using the touch panel pen.

本發明之課題在於提供一種可使書寫感變良好之觸控面板筆用書寫片、觸控面板及顯示裝置，以及觸控面板筆用書寫片之揀選方法。 An object of the present invention is to provide a touch panel pen writing sheet, a touch panel and a display device which can improve the writing feeling, and a method for selecting a touch panel pen writing sheet.

為了解決上述課題，本發明提供以下之[1]~[14]之觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置，以及觸控面板筆用書寫片之揀選方法。 In order to solve the above problems, the present invention provides the following touch panel writing pad, touch panel, touch panel system and display device of [1] to [14], and a method for selecting a touch panel pen.

[1]一種觸控面板筆用書寫片，其係下述之觸控面板筆(A)用書寫片，該書寫片具有截止值(cutoff value)0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)的表面。 [1] A writing sheet for a touch panel pen, which is a writing sheet for a touch panel pen (A) having a maximum height roughness of JIS B0601: 2001 having a cutoff value of 0.8 mm. The maximum valley depth Rv 0.8 of Rz 0.8 and the roughness curve, and the partial peak interval S 2.5 of JIS B0601:1994 with a cutoff value of 2.5 mm satisfy the surfaces of the following conditions (A1) and (A2).

0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.35≦Rv 0.8 /Rz 0.8 ≦0.60 (A1)

0.05mm≦S2.5≦0.30mm (A2) 0.05mm≦S 2.5 ≦0.30mm (A2)

<觸控面板筆(A)> <Touch Panel Pen (A)>

該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下。 The touch panel pen sets the apparent Young's modulus of the structure constituting the pen tip and the axis of the touch panel pen to E, sets the diameter of the pen tip to D, and sets the pen tip in the unit measurement section (0.5 mm). When the arithmetic mean height of the profile curve is Pa, the X derived from the following formula (i) is 500 MN/m or less.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

[2]一種觸控面板，於表面具有片，以作為該片之上述[1]記載之觸控面板筆用書寫片滿足上述條件(A1)及(A2)之側的面配置成朝向觸控面板之表面而成。 [2] A touch panel having a sheet on the surface thereof, wherein the surface of the touch panel pen writing sheet described in the above [1] that satisfies the conditions (A1) and (A2) is arranged to face the touch. The surface of the panel is made.

[3]一種顯示裝置，具有觸控面板，該觸控面板為上述[2]記載之觸控面板。 [3] A display device having a touch panel, wherein the touch panel is the touch panel described in [2] above.

[4]一種觸控面板筆用書寫片之揀選方法，其揀選具有截止值0.8mm之 JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)之表面的片作為下述之觸控面板筆(A)用書寫片。 [4] A method for selecting a writing pad for a touch panel pen, which has a maximum height roughness Rz 0.8 of a JIS B0601:2001 having a cutoff value of 0.8 mm and a maximum valley depth Rv 0.8 of a roughness curve, and a cutoff value of 2.5 mm. The partial average interval S 2.5 of JIS B0601: 1994 satisfies the surface of the following conditions (A1) and (A2) as the following writing sheet for the touch panel pen (A).

0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.35≦Rv 0.8 /Rz 0.8 ≦0.60 (A1)

0.05mm≦S2.5≦0.30mm (A2) 0.05mm≦S 2.5 ≦0.30mm (A2)

<觸控面板筆(A)> <Touch Panel Pen (A)>

該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下。 The touch panel pen sets the apparent Young's modulus of the structure constituting the pen tip and the axis of the touch panel pen to E, sets the diameter of the pen tip to D, and sets the pen tip in the unit measurement section (0.5 mm). When the arithmetic mean height of the profile curve is Pa, the X derived from the following formula (i) is 500 MN/m or less.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

[5]一種觸控面板筆用書寫片，其係下述之觸控面板筆(B)用書寫片，該書寫片具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且該書寫片之JIS K7136：2000之霧度(haze)滿足下述條件(B3)。 [5] A touch panel pen writing sheet, which is a writing sheet for a touch panel pen (B) having a maximum height roughness Rz 0.8 and a roughness of JIS B0601:2001 having a cutoff value of 0.8 mm. The maximum mountain height Rp 0.8 of the degree curve, and the skewness Psk of the profile curve in the measurement interval of 1 mm satisfy the surfaces of the following conditions (B1) and (B2), and the haze of the writing piece JIS K7136:2000 (haze) The following condition (B3) is satisfied.

0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.50<Rp 0.8 /Rz 0.8 ≦0.75 (B1)

0.60≦Psk (B2) 0.60≦Psk (B2)

霧度為5.0%以上 (B3) Haze is 5.0% or more (B3)

<觸控面板筆(B)> <Touch Panel Pen (B)>

該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖 面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m。 The touch panel pen sets the apparent Young's modulus of the structure constituting the pen tip and the axis of the touch panel pen to E, sets the diameter of the pen tip to D, and sets the pen tip in the unit measurement section (0.5 mm). Section When the arithmetic mean height of the surface curve is set to Pa, X derived from the following formula (i) exceeds 500 MN/m.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

[6]一種觸控面板，表面具有片，以作為該片之上述[1]記載之觸控面板筆用書寫片滿足上述條件(B1)及(B2)之側的面配置成朝向觸控面板之表面而成。 [6] A touch panel having a sheet on the surface thereof, wherein the surface of the touch panel pen writing sheet described in the above [1] that satisfies the conditions (B1) and (B2) is disposed toward the touch panel. The surface is made.

[7]一種顯示裝置，具有觸控面板，該觸控面板為上述[6]記載之觸控面板。 [7] A display device comprising a touch panel, wherein the touch panel is the touch panel described in [6] above.

[8]一種觸控面板筆用書寫片之揀選方法，揀選具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且 [8] A method for selecting a writing pad for a touch panel pen, selecting a maximum height roughness Rz 0.8 of a JIS B0601:2001 having a cutoff value of 0.8 mm and a maximum mountain height Rp 0.8 of a roughness curve, and a profile of a measurement interval of 1 mm The skewness Psk of the curve satisfies the surfaces of the following conditions (B1) and (B2), and

JIS K7136：2000之霧度滿足下述條件(B3)之片作為下述之觸控面板筆(B)用書寫片。 The sheet of the JIS K7136:2000 having the haze satisfying the following condition (B3) is used as the writing sheet for the touch panel pen (B) described below.

0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.50<Rp 0.8 /Rz 0.8 ≦0.75 (B1)

0.60≦Psk (B2) 0.60≦Psk (B2)

霧度為5.0%以上 (B3) Haze is 5.0% or more (B3)

<觸控面板筆(B)> <Touch Panel Pen (B)>

該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m。 The touch panel pen sets the apparent Young's modulus of the structure constituting the pen tip and the axis of the touch panel pen to E, sets the diameter of the pen tip to D, and sets the pen tip in the unit measurement section (0.5 mm). When the arithmetic mean height of the profile curve is set to Pa, X derived from the following formula (i) exceeds 500 MN/m.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

[9]一種觸控面板筆用書寫片之揀選方法，揀選滿足下述條件(C1)者作為觸控面板筆用書寫片。 [9] A method for selecting a writing pad for a touch panel pen, and picking a writing piece satisfying the following condition (C1) as a touch panel pen.

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

[10]如申請專利範圍第12項記載之觸控面板筆用書寫片之揀選方法，其揀選上述μk滿足下述條件(C2)者作為觸控面板筆用書寫片。 [10] The method of picking a touch panel pen for writing a touch panel according to claim 12, wherein the following condition (C2) satisfying the following condition (C2) is selected as a touch panel pen writing sheet.

<條件(C2)> <condition (C2)>

0.06≦μk≦0.30 0.06≦μk≦0.30

[11]一種觸控面板筆用書寫片，其具有滿足下述條件(C1)之表面。 [11] A writing sheet for a touch panel pen having a surface satisfying the following condition (C1).

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

[12]一種觸控面板，表面具有片，以作為該片之上述[11]記載之觸控面板筆用書寫片滿足上述條件(C1)之側的面配置成朝向觸控面板之表面而成。 [12] A touch panel having a sheet on the surface thereof, wherein the surface of the touch panel pen writing sheet described in the above [11] that satisfies the condition (C1) is disposed to face the surface of the touch panel. .

[13]一種觸控面板系統，由表面具有觸控面板筆用書寫片之觸控面板與 觸控面板筆構成，該觸控面板系統滿足下述條件(C1)。 [13] A touch panel system comprising a touch panel having a touch panel pen for writing on a surface A touch panel pen is constructed, and the touch panel system satisfies the following condition (C1).

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

[14]一種顯示裝置，具有觸控面板，該觸控面板為上述[12]記載之觸控面板。 [14] A display device comprising a touch panel, wherein the touch panel is the touch panel described in [12] above.

本發明之觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置可使書寫感變良好。又，本發明之觸控面板筆用書寫片之揀選方法即便不進行觸控面板筆之書寫試驗，亦可揀選對特定觸控面板筆之書寫感良好之書寫片，而可高效率地進行書寫片之製品設計、品質管理。 The touch panel pen for a touch panel, the touch panel, the touch panel system, and the display device of the present invention can improve the writing feeling. Moreover, the method for selecting a writing sheet for a touch panel pen according to the present invention can select a writing sheet having a good writing feeling for a specific touch panel pen without performing a writing test of the touch panel pen, and can perform writing with high efficiency. Product design and quality management.

1‧‧‧塑膠膜 1‧‧‧Plastic film

2‧‧‧樹脂層 2‧‧‧ resin layer

10‧‧‧觸控面板筆用書寫片 10‧‧‧Touch panel pen writing piece

2.0‧‧‧透明基板 2.0‧‧‧Transparent substrate

30‧‧‧導電膜 30‧‧‧Electrical film

40‧‧‧間隔片 40‧‧‧ Spacer

50‧‧‧X軸電極 50‧‧‧X-axis electrode

60‧‧‧Y軸電極 60‧‧‧Y-axis electrode

70‧‧‧絕緣體層 70‧‧‧Insulator layer

82‧‧‧可動台 82‧‧‧ movable platform

83‧‧‧砝碼 83‧‧‧ weights

84‧‧‧保持器 84‧‧‧ Keeper

85‧‧‧基座 85‧‧‧Base

100‧‧‧觸控面板 100‧‧‧ touch panel

200‧‧‧觸控面板筆 200‧‧‧Touch panel pen

300‧‧‧夾具 300‧‧‧ fixture

400‧‧‧不鏽鋼板 400‧‧‧Stainless steel plate

圖1係表示本發明之觸控面板筆用書寫片一實施形態之剖面圖。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing an embodiment of a writing pad for a touch panel pen according to the present invention.

圖2係表示本發明之觸控面板筆用書寫片其他實施形態之剖面圖。 Fig. 2 is a cross-sectional view showing another embodiment of the writing pad for a touch panel pen of the present invention.

圖3係表示本發明之觸控面板一實施形態之剖面圖。 Fig. 3 is a cross-sectional view showing an embodiment of a touch panel of the present invention.

圖4係表示本發明之觸控面板其他實施形態之剖面圖。 Fig. 4 is a cross-sectional view showing another embodiment of the touch panel of the present invention.

圖5係筆尖及軸之構造體之表觀楊氏模數E的測量方法之概略圖。 Fig. 5 is a schematic view showing a method of measuring the apparent Young's modulus E of the structure of the pen tip and the shaft.

圖6係對觸控面板筆之直徑D之算出方法進行說明之圖。 FIG. 6 is a view for explaining a method of calculating the diameter D of the touch panel pen.

圖7係對摩擦係數之測量方法進行說明之概略圖。 Fig. 7 is a schematic view for explaining a method of measuring a friction coefficient.

以下，針對本發明之觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置，以及觸控面板筆用書寫片之揀選方法，以實施形態A、實施形態B及實施形態C為例進行說明。 Hereinafter, the touch panel pen writing sheet, the touch panel, the touch panel system and the display device, and the method for selecting the touch panel pen writing sheet according to the present invention, the embodiment A, the embodiment B, and the embodiment C Give an example for explanation.

<實施形態A> <Embodiment A>

[觸控面板筆用書寫片] [Touch Panel Pen Writing Tablet]

實施形態A之觸控面板筆用書寫片係下述之觸控面板筆(A)用書寫片，且該書寫片具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)之表面。 The touch panel pen writing blade of the embodiment A is a writing piece for the touch panel pen (A) described below, and the writing piece has a maximum height roughness Rz 0.8 and roughness of JIS B0601:2001 with a cutoff value of 0.8 mm. The maximum valley depth Rv 0.8 of the curve and the partial peak interval S 2.5 of JIS B0601:1994 with a cutoff value of 2.5 mm satisfy the surfaces of the following conditions (A1) and (A2).

0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.35≦Rv 0.8 /Rz 0.8 ≦0.60 (A1)

0.05mm≦S2.5≦0.30mm (A2) 0.05mm≦S 2.5 ≦0.30mm (A2)

<觸控面板筆(A)> <Touch Panel Pen (A)>

該觸控面板筆係於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下。 The touch panel pen is set to set the apparent Young's modulus of the structure of the pen tip and the shaft constituting the touch panel pen to E, the diameter of the pen tip to D, and the unit measurement interval (0.5 mm) of the pen tip. When the arithmetic mean height of the cross-sectional curve is Pa, the X derived from the following formula (i) is 500 MN/m or less.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

再者，楊氏模數E之單位為「N/m2」，筆尖之直徑D之單位為「m」，算術平均高度Pa之單位為「m」。又，「M」意指「mega(106)」。 Furthermore, the unit of the Young's modulus E is "N/m 2 ", the unit of the diameter D of the nib is "m", and the unit of the arithmetic mean height Pa is "m". Also, "M" means "mega(10 6 )".

圖1係表示實施形態A之觸控面板筆用書寫片10一實施形態之剖面圖。圖1之觸控面板筆用書寫片10於塑膠膜1之一面具有樹脂層2。圖2之觸控面板筆用書寫片10為樹脂層2之單層構成。 Fig. 1 is a cross-sectional view showing an embodiment of a touch panel pen writing sheet 10 of the embodiment A. The writing sheet 10 for a touch panel pen of FIG. 1 has a resin layer 2 on one side of the plastic film 1. The touch panel pen writing sheet 10 of FIG. 2 is a single layer of the resin layer 2.

實施形態A之觸控面板筆用書寫片可一表面滿足條件(A1)及(A2)，亦可兩表面滿足條件(A1)及(A2)。 The writing sheet for the touch panel pen of Embodiment A can satisfy the conditions (A1) and (A2) on one surface, or the two surfaces can satisfy the conditions (A1) and (A2).

實施形態A之觸控面板筆用書寫片可為單片狀之形態，亦可為將長條片捲繞成輥狀之輥狀形態。 The writing sheet for a touch panel pen according to Embodiment A may be in the form of a single sheet, or may be in the form of a roll in which a long sheet is wound into a roll.

以下，有將觸控面板筆用書寫片稱為「書寫片」之情形。又，以下，有將滿足條件(A1)及(A2)之表面稱為「書寫面」之情形。 Hereinafter, there is a case where the writing piece for a touch panel pen is referred to as a "writing sheet". In addition, hereinafter, the surface satisfying the conditions (A1) and (A2) is referred to as a "writing surface".

<書寫面> <writing surface>

實施形態A之觸控面板筆用書寫片係至少一表面滿足條件(A1)及(A2)者。 The writing sheet for a touch panel pen according to Embodiment A is one in which at least one surface satisfies the conditions (A1) and (A2).

於實施形態A中，條件(A1)與條件(A2)係使用不同之截止值。以下，對使用2種截止值(0.8mm、2.5mm)之原因進行說明。 In the embodiment A, the condition (A1) and the condition (A2) use different cutoff values. Hereinafter, the reason why two kinds of cutoff values (0.8 mm, 2.5 mm) are used will be described.

截止值係表示從由粗糙度成分(高頻成分)與波紋成分(低頻成分)所構成之剖面曲線將波紋成分截止之程度的值。換言之，截止值係表示自剖面曲線將波紋成分(低頻成分)截止之濾波器之細度的值。若截止值較大，則濾波器較疏，因此波紋成分中較大之波紋成分被截止，但較小之波紋成分未被截止。另一方面，若截止值較小，則濾波器較密，因此波紋成分基本上被截止。即，若截止值較小，則對高頻成分之凹凸之影響變強，若截止值較大，則對低頻成分之凹凸之影響變強。 The cutoff value indicates a value obtained by cutting off the ripple component from a profile curve composed of a roughness component (high-frequency component) and a ripple component (low-frequency component). In other words, the cutoff value is a value indicating the fineness of the filter which cuts the ripple component (low frequency component) from the profile curve. If the cutoff value is large, the filter is sparse, so the larger ripple component of the ripple component is cut off, but the smaller ripple component is not cut off. On the other hand, if the cutoff value is small, the filter is dense, and thus the ripple component is substantially cut off. In other words, when the cutoff value is small, the influence on the unevenness of the high-frequency component is increased, and when the cutoff value is large, the influence on the unevenness of the low-frequency component is enhanced.

於JIS B0601中所參照之JIS B0633中，係根據算術平均粗糙度Ra之值 而使用特定之截止值(標準長度)。即，於JIS中，針對任意樣品，以使用單一之截止值為原則，而未假定使用多個截止值之情況。 JIS B0633 referred to in JIS B0601, based on the value of arithmetic mean roughness Ra Use a specific cutoff value (standard length). That is, in JIS, a single cutoff value is used for any sample, and a plurality of cutoff values are not assumed to be used.

本發明人等對與書寫片之書寫感之關係進行了努力研究。結果發現，筆尖之物性會嚴重影響書寫感。此處所謂筆尖之物性，係基於觸控面板筆之筆尖及軸之構造體之硬度(楊氏模數E)、筆尖之直徑D及筆尖之粗糙度(筆尖之剖面曲線的算術平均高度Pa)，自上述式(i)算出之「X」。X會嚴重影響書寫感之情況可說明如下。 The inventors of the present invention have made an effort to study the relationship with the writing sense of a writing sheet. It was found that the physical properties of the nib can seriously affect the sense of writing. The physical property of the pen tip here is based on the hardness of the structure of the pen tip and the axis of the touch panel pen (Young's modulus E), the diameter D of the pen tip, and the roughness of the pen tip (the arithmetic mean height Pa of the profile curve of the pen tip) , "X" calculated from the above formula (i). The situation in which X will seriously affect the sense of writing can be explained as follows.

首先，楊氏模數E係表示筆尖因負載而變形之容易性的基本物性，且存在如下傾向：楊氏模數E越小，筆尖越容易因負載而變形。繼而，直徑D之平方係表示分散負載之程度，且存在如下傾向：直徑D之平方越小，越難以分散負載，而筆尖越容易因負載而變形。即，表示如下情況：「楊氏模數E×直徑D×直徑D」越小，筆尖越容易變形，而筆尖與書寫片越容易接觸。其次，筆尖之剖面曲線的算術平均高度Pa係表示筆尖接觸書寫片之程度。具體而言，Pa越大，筆尖與書寫片越成為點接觸，而筆尖與書寫片之接觸面積變得越少。因此，表示如下情況：自[楊氏模數E×直徑D×直徑D]÷Pa算出之「X」之值越小，筆尖與書寫片越容易密接，從而會對書寫感產生重大影響。 First, the Young's modulus E is a basic physical property indicating the easiness of deformation of the nib due to the load, and there is a tendency that the smaller the Young's modulus E is, the more easily the nib is deformed by the load. Then, the square of the diameter D indicates the degree of dispersion load, and there is a tendency that the smaller the square of the diameter D, the more difficult it is to disperse the load, and the pen tip is more likely to be deformed by the load. That is, the case where the "Young's modulus E × diameter D × diameter D" is smaller, the pen tip is more easily deformed, and the pen tip and the writing piece are more easily contacted. Secondly, the arithmetic mean height Pa of the profile curve of the nib indicates the extent to which the nib contacts the writing piece. Specifically, the larger the Pa, the more the pen tip and the writing piece become point contact, and the contact area between the pen tip and the writing piece becomes smaller. Therefore, the case where the value of "X" calculated from [Young's modulus E × diameter D × diameter D] ÷ Pa is smaller, the more easily the pen tip and the writing piece are in close contact with each other, and the writing feeling is greatly affected.

進而，本發明人等發現，於X值較小之情形時，於書寫時表現出以下之行為。 Further, the present inventors have found that when the X value is small, the following behavior is exhibited at the time of writing.

首先，於X值較小之情形時，於使筆接觸書寫片之階段及開始書寫之階段，筆尖以追隨於書寫片之表面形狀之方式進行變形，筆尖與書寫膜之接觸於微小區域中變緊密。因此，高頻成分之凹凸對開始書寫之階段之摩 擦阻力之影響變大。 First, when the value of X is small, the tip of the pen is deformed in such a manner as to follow the surface shape of the writing piece at the stage of making the pen contact the writing piece and the stage of starting writing, and the contact between the pen tip and the writing film changes in a minute area. close. Therefore, the bump of the high-frequency component is at the stage of writing The effect of rubbing resistance becomes larger.

繼而，於開始書寫以後之階段，藉由伴隨著書寫速度上升之移動，而會因膜之低頻成分之凹凸之幫助，筆尖與膜於微小區域之密接頻度降低，從而高頻成分之凹凸對摩擦阻力之影響降低，另一方面，凹凸量較大之低頻成分之凹凸對摩擦阻力之影響變大。 Then, at the stage after the start of writing, with the movement of the writing speed increasing, the frequency of the close contact between the nib and the film in the minute region is lowered by the help of the unevenness of the low-frequency component of the film, and the unevenness of the high-frequency component is rubbed. The influence of the resistance is lowered. On the other hand, the influence of the unevenness of the low-frequency component having a large amount of unevenness on the frictional resistance becomes large.

然後，本發明人等基於上述行為進一步進行研究，發現藉由使用2種截止值對表面形狀進行設計，可使開始書寫直至書寫結束之書寫感變得良好。再者，於書寫文字或描繪圖形時，大多停止書寫一瞬後再開始書寫(例如，於轉換書寫方向時，通常停止書寫一瞬；又，於移動書寫位置時亦會停止書寫一瞬)。本發明人等將此種剛再開始書寫後亦視為「開始書寫」。 Then, the present inventors further studied based on the above behavior, and found that by designing the surface shape using two kinds of cutoff values, the writing feeling from the start of writing to the end of writing can be made good. Moreover, when writing a text or drawing a graphic, most of the writing is stopped for a while before writing (for example, when the writing direction is switched, the writing is usually stopped for a while; and the writing is stopped for a moment when the writing position is moved). The present inventors have also regarded this type of writing as "beginning writing" immediately after writing.

條件(A1)係要求將截止值設為0.8mm時之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8滿足0.35≦Rv0.8/Rz0.8≦0.60。 The condition (A1) is that the maximum height roughness Rz 0.8 of JIS B0601:2001 and the maximum valley depth Rv 0.8 of the roughness curve when the cutoff value is set to 0.8 mm satisfy 0.35 ≦ Rv 0.8 /Rz 0.8 ≦ 0.60.

條件(A1)之截止值為0.8mm。條件(A1)係表示高頻成分之凹凸，且主要會對開始書寫時之書寫感產生影響之參數。 The cutoff value of the condition (A1) is 0.8 mm. The condition (A1) is a parameter indicating the unevenness of the high-frequency component and mainly affecting the writing feeling at the time of starting writing.

條件(A1)之Rv0.8/Rz0.8係表示高頻成分之凹凸之谷之比例。筆尖密接於凹凸之山，另一方面，筆尖難以進入凹凸之谷中，因此谷抑制開始書寫時之筆尖之剝離力(摩擦阻力)。因此，藉由將Rv0.8/Rz0.8設為上述範圍內，開始書寫時之筆尖之剝離力(摩擦阻力)變得適當，而可使開始書寫時之書寫感變得良好。又，藉由將Rv0.8/Rz0.8設為上述範圍內，可容易使筆靜止於書寫片之表面。 The condition (A1) of Rv 0.8 /Rz 0.8 represents the ratio of the valley of the high-frequency component. The tip of the pen is in close contact with the mountain of the bump. On the other hand, the nib is difficult to enter the valley of the bump, so the valley suppresses the peeling force (frictional resistance) of the nib when the writing starts. Therefore, by setting Rv 0.8 /Rz 0.8 within the above range, the peeling force (frictional resistance) of the nib at the time of starting writing becomes appropriate, and the writing feeling at the start of writing can be made good. Further, by setting Rv 0.8 /Rz 0.8 within the above range, the pen can be easily placed on the surface of the writing sheet.

另一方面，於Rv0.8/Rz0.8未達0.35之情形時，谷之比例過少，因此有被 卡住之感觸，而無法使開始書寫時之書寫感變得良好。又，於Rv0.8/Rz0.8超過0.60之情形時，谷之比例過多，因此有光滑之感觸，而無法使開始書寫時之書寫感變得良好，且難以使筆靜止。 On the other hand, when Rv 0.8 /Rz 0.8 is less than 0.35, the ratio of the valley is too small, so there is a feeling of being stuck, and the writing feeling at the start of writing cannot be made good. Further, when Rv 0.8 /Rz 0.8 exceeds 0.60, the ratio of the valley is too large, so that there is a smooth feeling, and the writing feeling at the start of writing cannot be made good, and it is difficult to make the pen stand still.

條件(A1)較佳滿足0.37≦Rv0.8/Rz0.8≦0.55，更佳滿足0.40≦Rv0.8/Rz0.8≦0.50。 The condition (A1) preferably satisfies 0.37 ≦ Rv 0.8 / Rz 0.8 ≦ 0.55, more preferably 0.40 ≦ Rv 0.8 / Rz 0.8 ≦ 0.50.

再者，算出條件(A1)之成為基準之Rv0.8、Rz0.8係設為對20個樣品各測量1次時之平均值。又，下述之S2.5、Pp、Pv、Pa、Ra、透過清晰度及霧度亦設為對20個樣品各測量1次時之平均值。 Further, the calculation condition (A1) of the reference of Rv 0.8, Rz 0.8 is set based on the average of 20 samples each of the measurement times of 1. Further, the following S 2.5 , Pp, Pv, Pa, Ra, transmission clarity, and haze are also average values measured once for each of the 20 samples.

條件(A2)係要求將截止值設為2.5mm時之JIS B0601：1994之局部山頂平均間隔S2.5滿足0.05mm≦S2.5≦0.30mm。 The condition (A2) requires that the partial peak interval S 2.5 of JIS B0601:1994 when the cutoff value is set to 2.5 mm satisfies 0.05 mm ≦ S 2.5 ≦ 0.30 mm.

條件(A2)之截止值係2.5mm。條件(A2)係表示低頻成分之凹凸，且主要會對開始書寫以後之書寫感產生影響之參數。 The cutoff value of condition (A2) is 2.5 mm. The condition (A2) is a parameter indicating the unevenness of the low-frequency component and mainly affecting the writing feeling after starting writing.

條件(A2)之S2.5係表示低頻成分之局部山頂平均間隔。開始書寫以後，筆尖一面與局部山頂接觸一面進行移動。因此，S2.5會對開始書寫以後之感觸產生影響。因此，藉由將S2.5設為上述範圍內，開始書寫以後之摩擦阻力變得適當，而可使開始書寫以後之書寫感變得良好。 The S 2.5 of the condition (A2) represents the local average interval of the low-frequency components. After starting to write, the nib moves while touching the top of the mountain. Therefore, S 2.5 will have an impact on the feeling after starting writing. Thus, by the S 2.5 is set within the above range, the frictional resistance becomes appropriate after the start writing, and the writing performance since it can start writing becomes good.

於S2.5未達0.05mm之情形時，局部山頂過多，因此有被卡住之感觸，而無法使開始書寫以後之書寫感變得良好。又，於S2.5超過0.30mm之情形時，與筆尖之接觸面積相比，局部山頂過少，而有光滑之感觸，而無法使開始書寫以後之書寫感變得良好。 When the S 2.5 is less than 0.05 mm, there is too much local mountain top, so there is a feeling of being stuck, and it is impossible to make the writing feeling after starting writing become good. Further, when the S 2.5 exceeds 0.30 mm, the local mountain top is too small compared with the contact area of the nib, and there is a smooth feeling, and the writing feeling after starting writing cannot be made good.

條件(A2)較佳滿足0.05mm≦S2.5≦0.25mm，更佳滿足0.05mm≦S2.5≦0.15mm。再者，將S2.5設為0.05mm以上亦關係到顯示元件之解像度降低 之抑制。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。 The condition (A2) preferably satisfies 0.05 mm ≦ S 2.5 ≦ 0.25 mm, more preferably 0.05 mm ≦ S 2.5 ≦ 0.15 mm. Further, setting S 2.5 to 0.05 mm or more is also related to suppression of reduction in resolution of the display element. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed.

又，實施形態A之書寫片較佳於將單位測量區間設為1mm，將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt，將5個測量區間之Pt的平均值設為Ptm時，書寫面之Ptm滿足下述條件(A3)。 Further, in the writing sheet of the embodiment A, the unit measurement section is preferably set to 1 mm, the maximum height of the mountain height of the section curve in the unit measurement section is Pp, and the maximum value of the valley depth of the section curve in the unit measurement section is set to In Pv, the sum of Pp and Pv is set as the maximum profile height Pt of the profile curve in the unit measurement section, and when the average value of Pt of the five measurement sections is Ptm, the Ptm of the writing surface satisfies the following condition (A3).

0.01μm≦Ptm≦1.00μm (A3) 0.01μm≦Ptm≦1.00μm (A3)

所謂單位測量區間中之剖面曲線的山高最大值Pp，係將位於單位測量區間之標高平均線之上的部分定義為山，表示最高之山之高度者。再者，Pp與JIS B0601：2001之粗糙度曲線之最大山高Rp係算出參數之基準於Pp為剖面曲線、Rp為粗糙度曲線之方面不同。 The maximum mountain height Pp of the profile curve in the unit measurement interval is defined as the mountain above the elevation line of the unit measurement interval, indicating the height of the highest mountain. Further, the maximum mountain height Rp of the roughness curve of Pp and JIS B0601:2001 is different from the calculation of the parameter in terms of Pp being a profile curve and Rp being a roughness curve.

所謂單位測量區間中之剖面曲線的谷深最大值Pv，係將位於單位測量區間之標高平均線之下的部分定義為谷，表示最深之谷之深度者。再者，Pv與JIS B0601：2001之粗糙度曲線之最大谷深Rv係算出參數之基準於Pv為剖面曲線、Rv為粗糙度曲線之方面不同。 The valley depth maximum value Pv of the profile curve in the unit measurement interval is defined as a valley below the elevation line of the unit measurement interval, indicating the depth of the deepest valley. Further, the maximum valley depth Rv of the roughness curve of Pv and JIS B0601:2001 is different from the calculation of the parameter in that Pv is a profile curve and Rv is a roughness curve.

如上所述，高頻之凹凸對開始書寫時之書寫感之影響較大，低頻之凹凸對開始書寫以後之書寫感之影響較大。然而，將高頻之凹凸與低頻之凹凸累加在一起之凹凸亦會對開始書寫時之書寫感及開始書寫以後之書寫感產生若干影響。條件(A3)係表示將高頻之凹凸與低頻之凹凸累加在一起之凹凸(截止值0)之標高差不會過小且不會過大。因此，藉由將條件(A3)設為上述範圍，可使開始書寫直至書寫結束之書寫感變得更良 好。 As described above, the high-frequency unevenness has a large influence on the writing feeling at the time of starting writing, and the low-frequency unevenness has a large influence on the writing feeling after starting writing. However, the unevenness of the high-frequency concavities and the low-frequency concavities and convexities also has a certain influence on the writing feeling at the start of writing and the writing feeling after starting writing. The condition (A3) means that the difference in elevation between the unevenness of the high frequency and the unevenness of the low frequency (cutoff value 0) is not too small and is not excessive. Therefore, by setting the condition (A3) to the above range, the writing feeling from the start of writing to the end of writing can be made better. it is good.

條件(A3)更佳滿足0.10μm≦Ptm≦0.85μm，進而較佳滿足0.35μm≦Ptm≦0.75μm。 The condition (A3) more preferably satisfies 0.10 μm ≦ Ptm ≦ 0.85 μm, and further preferably satisfies 0.35 μm ≦ Ptm ≦ 0.75 μm.

又，實施形態A之書寫片之書寫面較佳為將截止值設為0.8mm時之JIS B0601：2001之算術平均粗糙度Ra0.8滿足下述條件(A4)。 Further, in the writing surface of the writing sheet of the embodiment A, it is preferable that the arithmetic mean roughness Ra 0.8 of JIS B0601:2001 when the cutoff value is 0.8 mm satisfies the following condition (A4).

0.01μm≦Ra0.8≦0.50μm (A4) 0.01μm≦Ra 0.8 ≦0.50μm (A4)

藉由將Ra0.8設為上述範圍，而可使書寫感變得更良好，並且可藉由書寫片抑制顯示元件之解像度降低。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。 By setting Ra 0.8 to the above range, the writing feeling can be made better, and the resolution of the display element can be suppressed by the writing sheet. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed.

條件(A4)更佳為0.03μm≦Ra0.8≦0.30μm，進而較佳為0.05μm≦Ra0.8≦0.15μm。 The condition (A4) is more preferably 0.03 μm ≦ Ra 0.8 ≦ 0.30 μm, further preferably 0.05 μm ≦ Ra 0.8 ≦ 0.15 μm.

進而，實施形態A之書寫片較佳於將觸控面板筆(A)於以60度之角度接觸書寫面之狀態下進行固定，一面對該觸控面板筆(A)施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於觸控面板筆(A)之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，滿足0.30≦μk/μs≦0.58之關係。再者，於實施形態A中，動摩擦係數μk意指全部測量時間之動摩擦係數之平均值。靜摩擦係數係設為自摩擦力0開始隨著測量時間之經過，成為動摩擦係數以上之最初摩擦力之峰值。摩擦係數之測量間隔較佳設為0.02秒。 Further, the writing sheet of the embodiment A is preferably fixed while the touch panel pen (A) is in contact with the writing surface at an angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen (A). The length of one-way 40mm is scanned at a speed of 14mm/sec, and the dynamic friction coefficient acting on the scanning direction of the touch panel pen (A) is set to μk, and when the static friction coefficient is set to μs, it satisfies 0.30≦μk/μs≦0.58. Relationship. Further, in the embodiment A, the dynamic friction coefficient μk means the average value of the dynamic friction coefficients of all the measurement times. The static friction coefficient is set to be the peak value of the initial frictional force equal to or higher than the dynamic friction coefficient as the measurement time elapses from the frictional force 0. The measurement interval of the coefficient of friction is preferably set to 0.02 seconds.

於書寫文字或描繪圖形時，大多停止書寫一瞬後再開始書寫(例如，於轉換書寫方向時，通常停止書寫一瞬。又，於移動書寫位置時亦會停止書寫一瞬)。於如上述般停止書寫一瞬後再開始書寫時，容易受到靜摩擦係 數與動摩擦係數之差之影響，但藉由將μk/μs設為上述範圍，而即便於停止書寫一瞬後再開始書寫時亦可實現所想像之書寫(例如，可將書寫方向轉換至預想之方向)。 When writing text or drawing graphics, most of them stop writing for a while before starting to write (for example, when switching the writing direction, usually stop writing for a moment. Also, when writing the writing position, the writing will stop writing for a moment). When you stop writing for a while and then start writing, you are susceptible to static friction. The effect of the difference between the number and the dynamic friction coefficient, but by setting μk/μs to the above range, the imaginary writing can be realized even when writing is stopped after the writing is stopped (for example, the writing direction can be converted to the expected one). direction).

為了滿足0.30≦μk/μs≦0.58之關係，較佳滿足上述條件(A1)及(A2)，更佳滿足上述條件(A1)~(A3)，進而較佳滿足上述條件(A1)~(A4)。 In order to satisfy the relationship of 0.30 ≦μk/μs ≦ 0.58, it is preferable to satisfy the above conditions (A1) and (A2), and it is better to satisfy the above conditions (A1) to (A3), and it is preferable to satisfy the above conditions (A1) to (A4). ).

又，為了使上述效果變得更良好，μk/μs更佳滿足0.30≦μk/μs≦0.44之關係。 Further, in order to make the above effects more favorable, μk/μs more preferably satisfies the relationship of 0.30 ≦ μk/μs ≦ 0.44.

μk/μs係設為對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs進行平均而獲得之值。 The μk/μs is a value obtained by measuring μk/μs of each sample for each of 20 samples and averaging μk/μs of 20 samples.

再者，即便於將觸控面板筆於以60度以外之角度(例如30~75度範圍之任意角度)接觸書寫面之狀態下進行固定時，亦較佳為μk/μs為上述範圍。又，即便於將掃描之速度設為14mm/秒以外之速度(例如0.1~100mm/秒範圍之任意速度)時，亦較佳為μk/μs為上述範圍。 Further, even when the touch panel pen is fixed in a state in which the writing surface is touched at an angle other than 60 degrees (for example, an arbitrary angle in the range of 30 to 75 degrees), it is preferable that μk/μs is in the above range. Further, even when the scanning speed is set to a speed other than 14 mm/sec (for example, an arbitrary speed in the range of 0.1 to 100 mm/sec), it is preferable that μk/μs is in the above range.

又，就不會過度光滑而獲得適度之阻力感之觀點而言，μk及μs較佳為以下之範圍。μk較佳為0.06~0.30，更佳為0.08~0.28。μs較佳為0.15~0.95，更佳為0.20~0.60。 Further, from the viewpoint of not being excessively smooth and obtaining a moderate feeling of resistance, μk and μs are preferably in the following ranges. The μk is preferably from 0.06 to 0.30, more preferably from 0.08 to 0.28. The μs is preferably from 0.15 to 0.95, more preferably from 0.20 to 0.60.

圖7係對μk及μs之測量方法進行說明之概略圖。 Fig. 7 is a schematic view for explaining a method of measuring μk and μs.

圖7中，觸控面板筆200係以接觸書寫片10之狀態由保持器84固定。又，於保持器84之上部附帶有用以載置砝碼83之基座85。於基座85上載置砝碼83，藉由該砝碼而對觸控面板筆施加垂直負載。書寫片10係固定於可動台82上。 In FIG. 7, the touch panel pen 200 is fixed by the holder 84 in a state of contacting the writing sheet 10. Further, a susceptor 85 for placing the weight 83 is attached to the upper portion of the holder 84. A weight 83 is placed on the base 85, and a vertical load is applied to the touch panel pen by the weight. The writing sheet 10 is fixed to the movable table 82.

於測量摩擦係數時，於將觸控面板筆以上述方式固定之狀態下，將可動台82以特定速度向可動台與觸控面板筆所成之角之鈍角方向側(圖7之左側)進行掃描。 When measuring the friction coefficient, in a state where the touch panel pen is fixed in the above manner, the movable table 82 is moved toward the obtuse angle side (the left side of FIG. 7) of the corner formed by the movable table and the touch panel pen at a specific speed. scanning.

作為圖7所示之可測量之裝置，可列舉：新東科學公司製造之商品名HEIDON-14DR。 As a measurable device shown in Fig. 7, a trade name HEIDON-14DR manufactured by Shinto Scientific Co., Ltd. is mentioned.

觸控面板筆之筆尖及軸之構造體之表觀楊氏模數E可根據向拉伸試驗機之壓縮方向之變異及負載特性而算出。具體而言，可如圖5般，將利用夾具300自兩側固定距筆尖10cm之部位後之軸長設為L，將經由夾具300向筆軸方向施加5gf之垂直負載時之變形量與施加100gf之垂直負載時之變形量的差ΔL定義為位移，將負載差95gf設為ΔF，從自筆尖之直徑求出之剖面積S藉由下述式(ii)算出。壓抵觸控面板筆200之對象係設為厚度3mm以上之不鏽鋼製板400。再者，於壓抵筆時筆不穩定之情形時，只要於板之表面設置用以使筆穩定之凹部，並使筆接觸該凹部之位置即可。 The apparent Young's modulus E of the tip of the touch panel pen and the structure of the shaft can be calculated from the variation in the direction of compression of the tensile tester and the load characteristics. Specifically, as shown in FIG. 5, the axial length after the jig 300 is fixed to a portion 10 cm away from the pen tip by both sides is set to L, and the amount of deformation and application when a vertical load of 5 gf is applied to the pen axis direction via the jig 300 is applied. The difference ΔL in the deformation amount at the time of the vertical load of 100 gf is defined as the displacement, and the load difference 95 gf is ΔF, and the sectional area S obtained from the diameter of the nib is calculated by the following formula (ii). The object to be pressed against the touch panel pen 200 is a stainless steel plate 400 having a thickness of 3 mm or more. Further, in the case where the pen is unstable when pressed against the pen, it is only necessary to provide a recess for stabilizing the pen on the surface of the plate, and to allow the pen to contact the position of the recess.

關於測量楊氏模數E時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。又，於楊氏模數E之測量開始前，將觸控面板筆放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Regarding the environment in which the Young's modulus E was measured, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. Moreover, before the measurement of the Young's modulus E is started, the touch panel pen is placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more.

σ(應力)=ΔF/S σ(stress)=ΔF/S

ε(應變)=ΔL/L ε (strain) = ΔL / L

E=σ/ε (ii) E=σ/ε (ii)

筆尖之直徑D係以自垂直於筆軸之方向側拍攝觸控面板筆而獲得之照片為基準而算出。圖6係用虛線表示自垂直於筆軸之方向側拍 攝觸控面板筆時之觸控面板筆之外形者。如圖6(a)所示般，針對該照片，將通過該照片之頂點且未自該照片伸出之圓重疊時，將成為最大之圓之直徑設為筆尖之直徑D。但是，若如圖6(b)所示般，該照片具有斜面，且該斜面與筆軸所成之角度為40~90度，則亦可伸出該斜面而重疊該圓。 The diameter D of the nib is calculated based on a photograph obtained by photographing the touch panel pen from the direction perpendicular to the pen axis. Figure 6 is a broken line showing the side from the direction perpendicular to the pen axis The shape of the touch panel pen when taking a touch panel pen. As shown in Fig. 6(a), when the circle passing through the apex of the photograph and not extending from the photograph overlaps, the diameter of the largest circle is defined as the diameter D of the nib. However, if the photograph has a slope as shown in Fig. 6(b), and the angle formed by the slope with the pen shaft is 40 to 90 degrees, the slope may be extended to overlap the circle.

筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度Pa可藉由如下方式算出：利用數位顯微鏡對筆尖之形狀進行拍攝，將拍攝所得之筆尖之輪廓模擬為剖面曲線，於剖面曲線之平均線之方向僅抽出單位測量區間(0.5mm)之長度L，將該抽出部分之平均線直至測量曲線之偏差之絕對值進行合計並進行平均。具體而言，Pa可自以下之式(iii)算出。於筆尖具有曲率之情形時，只要將曲面修正為直線後算出Pa即可。再者，單位測量區間(0.5mm)之中間點較佳為與筆尖之中心一致。 The arithmetic mean height Pa of the profile curve in the unit measurement interval (0.5 mm) of the nib can be calculated by photographing the shape of the nib using a digital microscope, and simulating the contour of the obtained nib as a profile curve. The direction of the average line extracts only the length L of the unit measurement section (0.5 mm), and the average value of the deviation of the extracted portion until the deviation of the measurement curve is totaled and averaged. Specifically, Pa can be calculated from the following formula (iii). When the tip of the pen has a curvature, the Pa can be calculated by correcting the curved surface to a straight line. Furthermore, the intermediate point of the unit measurement interval (0.5 mm) preferably coincides with the center of the pen tip.

作為數位顯微鏡，例如可使用其恩斯公司之商品名VHX-5000等。 As the digital microscope, for example, the trade name of the Ens company, VHX-5000, or the like can be used.

再者，Pa與JIS B0601：2001之算術平均粗糙度Ra係算出參數之基準於Pa為剖面曲線，Ra為粗糙度曲線之方面不同。 Further, the calculation of the arithmetic mean roughness Ra of Pa and JIS B0601:2001 is based on the fact that Pa is a profile curve and Ra is a roughness curve.

又，實施形態A之書寫片較佳於將依據JIS K7374：2007所測得之圖像解析度測量器之光頻梳之寬度為0.125mm、0.5mm、1.0mm及2.0mm之透過圖像清晰度設為C0.125、C0.5、C1.0及C2.0時，C0.125、C0.5、C1.0及C2.0之總和Cs為250%以上，更佳為270%以上，進而較佳為280%以上。 Further, the writing sheet of the embodiment A is preferably such that the width of the optical frequency comb of the image resolution measuring device measured according to JIS K7374:2007 is 0.125 mm, 0.5 mm, 1.0 mm, and 2.0 mm. When the degree is C 0.125 , C 0.5 , C 1.0 and C 2.0 , the total C s of C 0.125 , C 0.5 , C 1.0 and C 2.0 is 250% or more, more preferably 270% or more, and further preferably 280% or more. .

藉由將Cs設為2.50%以上，而可藉由書寫片抑制顯示元件之解像度降 低。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。Cs之上限並無特別限定，為399%左右。 By setting C s to 2.50% or more, the resolution of the display element can be suppressed by the writing sheet. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed. The upper limit of C s is not particularly limited and is about 399%.

又，實施形態A之書寫片較佳為JIS K7136：2000之霧度未達5.0%，更佳為3.0%以下，進而較佳為1.0%以下。 Further, in the writing sheet of the embodiment A, the haze of JIS K7136:2000 is preferably less than 5.0%, more preferably 3.0% or less, still more preferably 1.0% or less.

藉由將霧度設為5.0%以下，而可藉由書寫片抑制顯示元件之解像度降低。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。霧度之下限並無特別限定，較佳為0.1%以上，更佳為0.2%以上。 By setting the haze to 5.0% or less, the resolution of the display element can be suppressed from being lowered by the writing sheet. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed. The lower limit of the haze is not particularly limited, but is preferably 0.1% or more, and more preferably 0.2% or more.

再者，於對透過圖像清晰度及霧度進行測量時，將光自書寫片之與書寫面相反側之表面入射。於書寫片之兩面滿足上述條件(A1)及(A2)之情形時，光入射面可為任一面。 Further, when the transmission image sharpness and the haze are measured, light is incident from the surface of the writing sheet opposite to the writing surface. When the two surfaces of the writing sheet satisfy the above conditions (A1) and (A2), the light incident surface may be either surface.

<書寫片整體之構成> <Structure of the whole writing sheet>

實施形態A之觸控面板筆用書寫片只要至少一表面滿足條件(A1)及(A2)，則其構成並無特別限定。 In the touch panel pen writing sheet of the embodiment A, the configuration is not particularly limited as long as at least one surface satisfies the conditions (A1) and (A2).

例如，作為實施形態A之觸控面板筆用書寫片10之構成，可列舉：如圖1及圖2般具有樹脂層2，且該樹脂層2之一表面滿足條件(A1)及(A2)者。 For example, the configuration of the touch panel pen writing sheet 10 of the embodiment A includes a resin layer 2 as shown in FIGS. 1 and 2, and one surface of the resin layer 2 satisfies the conditions (A1) and (A2). By.

再者，雖未圖示，但亦可具有樹脂層或塑膠膜以外之其他層，且該其他層之表面滿足條件(A1)及(A2)。作為其他層，可列舉：抗靜電層、防污層等。又，雖未圖示，但樹脂層亦可由2層以上構成。 Further, although not shown, other layers than the resin layer or the plastic film may be provided, and the surfaces of the other layers satisfy the conditions (A1) and (A2). Examples of the other layer include an antistatic layer, an antifouling layer, and the like. Further, although not shown, the resin layer may be composed of two or more layers.

滿足條件(A1)及(A2)之表面(書寫面)可藉由(a)壓紋、噴砂、蝕刻等物理或化學處理、(b)利用模具之成型、(c)塗佈等而形 成。該等方法中，就表面形狀之再現性之觀點而言，較佳為(b)之利用模具之成型，就生產性及對應多品種之觀點而言，較佳為(c)之塗佈。 The surface (writing surface) satisfying the conditions (A1) and (A2) may be formed by (a) physical or chemical treatment such as embossing, sand blasting, etching, (b) molding by a mold, (c) coating, or the like. to make. Among these methods, from the viewpoint of the reproducibility of the surface shape, it is preferable that the molding of the mold (b) is carried out, and the coating of (c) is preferable from the viewpoint of productivity and a plurality of types.

利用模具之成型可藉由製作由與滿足條件(A1)及(A2)之形狀互補之形狀所構成之模具，使形成樹脂層之材料流入至該模具中，然後自模具取出而形成。此處，若使用構成樹脂層之材料作為該材料，使該材料流入至模具中後重疊塑膠膜，並將樹脂層連同塑膠膜一起自模具取出，則可獲得於塑膠膜上具有樹脂層，且該樹脂層之表面滿足條件(A1)及(A2)之觸控面板筆用書寫片。又，不使用塑膠膜而直接自模具取出樹脂層，或者使用塑膠膜自模具取出樹脂層後剝離塑膠膜，藉此可獲得由樹脂層單層所構成，且該樹脂層之表面滿足條件(A1)及(A2)之觸控面板筆用書寫片。 The molding of the mold can be carried out by forming a mold composed of shapes complementary to the shapes satisfying the conditions (A1) and (A2), allowing the material forming the resin layer to flow into the mold and then taking it out from the mold. Here, if a material constituting the resin layer is used as the material, the material is poured into the mold, the plastic film is superposed, and the resin layer is taken out from the mold together with the plastic film, and a resin layer is obtained on the plastic film, and The surface of the resin layer satisfies the writing sheet for a touch panel pen of the conditions (A1) and (A2). Further, the resin layer is directly taken out from the mold without using a plastic film, or the plastic film is taken out from the mold, and the plastic film is peeled off, whereby a single layer of the resin layer can be obtained, and the surface of the resin layer satisfies the condition (A1) And (A2) the touch panel pen for writing.

於使用硬化性樹脂組成物(熱硬化性樹脂組成物或游離輻射硬化性樹脂組成物)作為流入至模具中之材料之情形時，較佳於自模具取出前使硬化性樹脂組成物硬化。 When a curable resin composition (thermosetting resin composition or free radiation curable resin composition) is used as the material flowing into the mold, it is preferred to cure the curable resin composition before taking out from the mold.

關於利用塗佈之樹脂層之形成，可藉由將含有樹脂成分、粒子及溶劑而成之樹脂層形成塗佈液利用凹版塗佈、棒式塗佈等公知之塗佈方法塗佈於塑膠膜上，並進行乾燥、硬化而形成。 The resin layer forming coating liquid containing the resin component, the particles, and the solvent can be applied to the plastic film by a known coating method such as gravure coating or bar coating. It is formed by drying and hardening.

為了使藉由塗佈而形成之樹脂層之表面形狀滿足上述條件，較佳為形成將膜厚、粒子之含量及粒子之平均粒徑設為下述範圍之第一樹脂層，且於該第一樹脂層上形成第二樹脂層。 In order to satisfy the above conditions in the surface shape of the resin layer formed by coating, it is preferred to form a first resin layer having a film thickness, a particle content, and an average particle diameter of the particles in the following range. A second resin layer is formed on a resin layer.

第一樹脂層之膜厚較佳為1.5~10μm，更佳為2~8μm，進而較佳為4~7μm。第一樹脂層及下述之第二樹脂層之膜厚例如可根據 使用穿透式電子顯微鏡(TEM)或掃描穿透式電子顯微鏡(STEM)所拍攝到之剖面之圖像測量20處之厚度，並根據20處之值之平均值而算出。TEM或STEM之加速電壓較佳設為10~30kV，倍率較佳設為5萬~30萬倍。 The film thickness of the first resin layer is preferably from 1.5 to 10 μm, more preferably from 2 to 8 μm, still more preferably from 4 to 7 μm. The film thickness of the first resin layer and the second resin layer described below may be, for example, according to The thickness of 20 sections was measured using an image of a cross section taken by a transmission electron microscope (TEM) or a scanning transmission electron microscope (STEM), and was calculated from the average value of the values at 20. The acceleration voltage of the TEM or STEM is preferably set to 10 to 30 kV, and the magnification is preferably set to 50,000 to 300,000 times.

第一樹脂層之粒子可使用有機粒子及無機粒子中之任一者。作為有機粒子，可列舉：由聚甲基丙烯酸甲酯、聚丙烯酸-苯乙烯共聚物、三聚氰胺樹脂、聚碳酸酯、聚苯乙烯、聚氯乙烯、苯胍胺-三聚氰胺-甲醛縮合物、聚矽氧、氟系樹脂及聚酯系樹脂等所構成之粒子。作為無機粒子，可列舉：由二氧化矽、氧化鋁、銻、氧化鋯及二氧化鈦等所構成之粒子。該等粒子中，就分散控制之容易性的觀點而言，較佳為有機粒子。 As the particles of the first resin layer, any of organic particles and inorganic particles can be used. Examples of the organic particles include polymethyl methacrylate, polyacrylic acid-styrene copolymer, melamine resin, polycarbonate, polystyrene, polyvinyl chloride, benzoguanamine-melamine-formaldehyde condensate, and polyfluorene. Particles composed of oxygen, a fluorine resin, a polyester resin, or the like. Examples of the inorganic particles include particles composed of ceria, alumina, cerium, zirconia, and titania. Among these particles, organic particles are preferred from the viewpoint of easiness of dispersion control.

第一樹脂層中之粒子之含量較佳為形成樹脂層之全部固形物成分中之0.1~15質量%，更佳為0.2~12質量%，進而較佳為0.3~10質量%。 The content of the particles in the first resin layer is preferably from 0.1 to 15% by mass, more preferably from 0.2 to 12% by mass, even more preferably from 0.3 to 10% by mass, based on the total solid content of the resin layer.

第一樹脂層中之粒子之平均粒徑較佳為0.2~8.0μm，更佳為0.3~7.0μm，進而較佳為0.5~5.0μm。於粒子凝集之情形時，較佳為凝集粒子之平均粒徑滿足上述範圍。粒子之平均粒徑可藉由以下之(1)~(3)之作業而算出。 The average particle diameter of the particles in the first resin layer is preferably 0.2 to 8.0 μm, more preferably 0.3 to 7.0 μm, still more preferably 0.5 to 5.0 μm. In the case where the particles are aggregated, it is preferred that the average particle diameter of the aggregated particles satisfies the above range. The average particle diameter of the particles can be calculated by the following operations (1) to (3).

(1)利用光學顯微鏡對書寫片拍攝透過觀察圖像。倍率較佳為500~2000倍。 (1) The writing sheet was photographed through an observation image by an optical microscope. The magnification is preferably 500 to 2000 times.

(2)自觀察圖像挑選任意10個粒子，算出各粒子之粒徑。粒徑係以於用任意平行之2條直線夾住粒子之剖面時，該2條直線間距離成為最大之2條直線之組合中的直線間距離之方式進行測量。 (2) Select any 10 particles from the observation image, and calculate the particle diameter of each particle. The particle size is measured by sandwiching the cross-section of the particles with any two parallel straight lines, and the distance between the straight lines in the combination of the two straight lines is the largest.

(3)針對同一樣品之另一畫面之觀察圖像，進行相同之作業5次，將根據合計50個量之粒徑之數量平均獲得之值設為第一樹脂層中之粒子之平 均粒徑。 (3) For the observation image of another screen of the same sample, the same operation is performed 5 times, and the value obtained by averaging the number of particle diameters of 50 total amounts is set as the level of the particles in the first resin layer. Average particle size.

關於下述之第二樹脂層之粒子之平均粒徑，首先利用TEM或STEM對書寫片之剖面進行拍攝。拍攝後，進行與上述(2)及(3)相同之方法，藉此可算出第二樹脂層之粒子之平均粒徑。TEM或STEM之加速電壓較佳設為10kv~30kV，倍率較佳設為5萬~30萬倍。 Regarding the average particle diameter of the particles of the second resin layer described below, the cross section of the writing sheet was first imaged by TEM or STEM. After the photographing, the same method as (2) and (3) above is carried out, whereby the average particle diameter of the particles of the second resin layer can be calculated. The acceleration voltage of the TEM or STEM is preferably set to 10 kv to 30 kV, and the magnification is preferably set to 50,000 to 300,000 times.

第二樹脂層係使第一樹脂層之凹凸平滑之層。因此，第二樹脂層較佳為不含有平均粒徑0.2μm以上之粒子。 The second resin layer is a layer which makes the unevenness of the first resin layer smooth. Therefore, the second resin layer preferably does not contain particles having an average particle diameter of 0.2 μm or more.

第二樹脂層之膜厚較佳為0.01~0.15μm，更佳為0.05~0.10μm。 The film thickness of the second resin layer is preferably from 0.01 to 0.15 μm, more preferably from 0.05 to 0.10 μm.

於第二樹脂層含有粒子之情形時，該粒子之平均粒徑較佳為未達0.2μm，更佳為0.01~0.2μm。 When the second resin layer contains particles, the average particle diameter of the particles is preferably less than 0.2 μm, more preferably 0.01 to 0.2 μm.

第二樹脂層之粒子可使用與作為第一樹脂層之粒子所例示之有機粒子、無機粒子相同者。該等中，就降低反射率之觀點而言，較佳為中空粒子，更佳為中空二氧化矽。 The particles of the second resin layer may be the same as the organic particles or inorganic particles exemplified as the particles of the first resin layer. Among these, from the viewpoint of lowering the reflectance, hollow particles are preferred, and hollow cerium oxide is more preferred.

第二樹脂層中之粒子之含量較佳為形成第二樹脂層之全部固形物成分中之20~60質量%，更佳為30~50質量%。 The content of the particles in the second resin layer is preferably from 20 to 60% by mass, more preferably from 30 to 50% by mass, based on the total solid content of the second resin layer.

第一樹脂層及第二樹脂層之樹脂成分較佳包含熱硬化性樹脂組成物或游離輻射硬化性樹脂組成物之硬化物，就使機械強度變得更良好之觀點而言，更佳為包含游離輻射硬化性樹脂組成物之硬化物，其中，進而較佳包含紫外線硬化性樹脂組成物之硬化物。 The resin component of the first resin layer and the second resin layer preferably contains a cured product of a thermosetting resin composition or a free radiation curable resin composition, and more preferably contains a viewpoint of improving mechanical strength. Further, the cured product of the radiation curable resin composition further preferably contains a cured product of the ultraviolet curable resin composition.

熱硬化性樹脂組成物係至少包含熱硬化性樹脂之組成物，且係藉由加熱而硬化之樹脂組成物。 The thermosetting resin composition contains at least a composition of a thermosetting resin and is a resin composition which is cured by heating.

作為熱硬化性樹脂，可列舉：丙烯酸系樹脂、胺基甲酸酯樹脂、酚系 樹脂、脲三聚氰胺樹脂、環氧樹脂、不飽和聚酯樹脂、矽酮樹脂等。於熱硬化性樹脂組成物中，視需要向該等硬化性樹脂添加硬化劑。 Examples of the thermosetting resin include an acrylic resin, a urethane resin, and a phenol system. Resin, urea melamine resin, epoxy resin, unsaturated polyester resin, fluorenone resin, and the like. In the thermosetting resin composition, a curing agent is added to the curable resins as needed.

游離輻射硬化性樹脂組成物係包含具有游離輻射硬化性官能基之化合物(以下，亦稱為「游離輻射硬化性化合物」)之組成物。作為游離輻射硬化性官能基，可列舉：(甲基)丙烯醯基、乙烯基、烯丙基等乙烯性不飽和鍵結基及環氧基、氧雜環丁基等。作為游離輻射硬化性化合物，較佳為具有乙烯性不飽和鍵結基之化合物，更佳為具有2個以上之乙烯性不飽和鍵結基之化合物，其中，進而較佳為具有2個以上之乙烯性不飽和鍵結基之多官能性(甲基)丙烯酸酯系化合物。作為多官能性(甲基)丙烯酸酯系化合物，單體及低聚物均可使用。 The composition of the radiation curable resin is a composition of a compound having an epitaxial radiation-curable functional group (hereinafter also referred to as "free radiation curable compound"). Examples of the radical radiation-curable functional group include an ethylenically unsaturated bonding group such as a (meth)acryl fluorenyl group, a vinyl group, and an allyl group, and an epoxy group or an oxetanyl group. The free radiation curable compound is preferably a compound having an ethylenically unsaturated bond group, more preferably a compound having two or more ethylenically unsaturated bond groups, and more preferably two or more. A polyfunctional (meth) acrylate compound having an ethylenically unsaturated bonding group. As the polyfunctional (meth) acrylate type compound, both a monomer and an oligomer can be used.

再者，所謂游離輻射，意指電磁波或帶電粒子束中具有可使分子聚合或交聯之能量量子者，通常可使用紫外線(UV)或電子束(EB)，此外，亦可使用X射線、γ射線等電磁波；α射線、離子束等帶電粒子束。 In addition, the term "free radiation" means an electromagnetic wave or a charged quantum beam having an energy quantum capable of polymerizing or crosslinking a molecule, and generally, ultraviolet (UV) or electron beam (EB) may be used, and X-rays may also be used. Electromagnetic waves such as gamma rays; charged particle beams such as alpha rays and ion beams.

多官能性(甲基)丙烯酸酯系化合物中，作為雙官能(甲基)丙烯酸酯系單體，可列舉：乙二醇二(甲基)丙烯酸酯、雙酚A四乙氧基二丙烯酸酯、雙酚A四丙氧基二丙烯酸酯、1,6-己二醇二丙烯酸酯等。 Among the polyfunctional (meth)acrylate compounds, examples of the difunctional (meth)acrylate monomer include ethylene glycol di(meth)acrylate and bisphenol A tetraethoxy diacrylate. , bisphenol A tetrapropoxy diacrylate, 1,6-hexanediol diacrylate, and the like.

作為3官能以上之(甲基)丙烯酸酯系單體，例如可列舉：三羥甲基丙烷三(甲基)丙烯酸酯、新戊四醇三(甲基)丙烯酸酯、新戊四醇四(甲基)丙烯酸酯、二新戊四醇六(甲基)丙烯酸酯、二新戊四醇四(甲基)丙烯酸酯、異三聚氰酸改質三(甲基)丙烯酸酯等。 Examples of the trifunctional or higher (meth)acrylate monomer include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, and pentaerythritol IV ( Methyl) acrylate, dipentaerythritol hexa(meth) acrylate, dipentaerythritol tetra(meth) acrylate, iso-cyanuric acid modified tri(meth) acrylate, and the like.

又，上述(甲基)丙烯酸酯系單體亦可為將分子骨架之一部分改質者，亦可使用經環氧乙烷、環氧丙烷、己內酯、異三聚氰酸、烷基、環狀烷基、 芳香族、雙酚等改質而成者。 Further, the (meth) acrylate monomer may be one in which a part of the molecular skeleton is modified, and ethylene oxide, propylene oxide, caprolactone, iso-cyanuric acid, or an alkyl group may be used. Cyclic alkyl group, Aromatic, bisphenol and other modified.

又，作為多官能性(甲基)丙烯酸酯系低聚物，可列舉：胺酯(甲基)丙烯酸酯(urethane(meth)acrylate)、環氧(甲基)丙烯酸酯、聚酯(甲基)丙烯酸酯、聚醚(甲基)丙烯酸酯等丙烯酸酯系聚合物等。 Further, examples of the polyfunctional (meth)acrylate-based oligomer include urethane (meth) acrylate, epoxy (meth) acrylate, and polyester (methyl). An acrylate-based polymer such as an acrylate or a polyether (meth) acrylate.

胺酯(甲基)丙烯酸酯例如可藉由多元醇及有機二異氰酸酯與羥基(甲基)丙烯酸酯之反應而獲得。 The amine ester (meth) acrylate can be obtained, for example, by a reaction of a polyol and an organic diisocyanate with a hydroxy (meth) acrylate.

又，較佳之環氧(甲基)丙烯酸酯係使3官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與多元酸及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；及使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與酚類及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯。 Further, a preferred epoxy (meth) acrylate is obtained by reacting a trifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with (meth)acrylic acid. (meth) acrylate; a (meth) acrylate obtained by reacting a difunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with a polybasic acid and (meth)acrylic acid; And a (meth) acrylate obtained by reacting a bifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, or an aliphatic epoxy resin with a phenol or a (meth)acrylic acid.

上述游離輻射硬化性化合物可單獨使用1種，或組合2種以上使用。 The above-mentioned free radiation curable compounds may be used alone or in combination of two or more.

於游離輻射硬化性化合物為紫外線硬化性化合物之情形時，游離輻射硬化性組成物較佳包含光聚合起始劑或光聚合促進劑等添加劑。 When the free radiation curable compound is an ultraviolet curable compound, the free radiation curable composition preferably contains an additive such as a photopolymerization initiator or a photopolymerization accelerator.

作為光聚合起始劑，可列舉：選自苯乙酮、二苯甲酮、α-羥基烷基苯酮、米其勒酮、安息香、苯偶醯二甲基縮酮、苯甲醯基苯甲酸酯、α-醯基肟酯、9-氧硫類等中之1種以上。 The photopolymerization initiator may be selected from the group consisting of acetophenone, benzophenone, α-hydroxyalkylphenone, mischrone, benzoin, benzoin dimethyl ketal, benzhydrazine benzene. Formate, α-mercaptodecyl ester, 9-oxosulfur One or more of the classes.

該等光聚合起始劑較佳為熔點為100℃以上。藉由將光聚合起始劑之熔點設為100℃以上，而於書寫片之製造過程、或觸控面板之透明導電膜之形成過程中所殘留之光聚合起始劑昇華，而可防止製造裝置或透明導電膜之 污染。 The photopolymerization initiator preferably has a melting point of 100 ° C or higher. By setting the melting point of the photopolymerization initiator to 100 ° C or higher, the photopolymerization initiator remaining in the process of producing the writing sheet or the transparent conductive film of the touch panel is sublimated, thereby preventing the manufacture. Device or transparent conductive film Pollution.

又，光聚合促進劑係可減輕硬化時之由空氣引起之聚合抑制而使硬化速度加快者，例如可列舉：選自對二甲胺基苯基苯甲酸異戊酯、對二甲胺基苯甲酸乙酯等中之1種以上。 Further, the photopolymerization accelerator can reduce the polymerization inhibition by air at the time of curing and accelerate the curing rate, and examples thereof include, for example, isoamyl p-dimethylaminophenylbenzoate and p-dimethylaminobenzene. One or more of ethyl formate and the like.

塑膠膜可由聚酯、三乙醯纖維素(TAC)、二乙酸纖維素、乙酸丁酸纖維素、聚醯胺、聚醯亞胺、聚醚碸、聚碸、聚丙烯、聚甲基戊烯、聚氯乙烯、聚乙烯醇縮醛、聚醚酮、聚甲基丙烯酸甲酯、聚碳酸酯、聚胺基甲酸酯及非晶質烯烴(Cyclo-Olefin-Polymer：COP)等樹脂形成。 The plastic film can be made of polyester, triacetyl cellulose (TAC), cellulose diacetate, cellulose acetate butyrate, polyamide, polyimine, polyether oxime, polyfluorene, polypropylene, polymethylpentene. It is formed of a resin such as polyvinyl chloride, polyvinyl acetal, polyether ketone, polymethyl methacrylate, polycarbonate, polyurethane, and amorphous olefin (Cyclo-Olefin-Polymer: COP).

該等塑膠膜中，就機械強度或尺寸穩定性之觀點而言，較佳為經延伸加工、尤其是雙軸延伸加工之聚酯(聚對苯二甲酸乙二酯(PET)、聚萘二甲酸乙二酯(PEN))。 In the plastic film, from the viewpoint of mechanical strength or dimensional stability, polyester (polyethylene terephthalate (PET), polynaphthalene) which is subjected to elongation processing, especially biaxial stretching processing is preferred. Ethylene formate (PEN)).

塑膠膜之厚度較佳為5~200μm，更佳為10~150μm。 The thickness of the plastic film is preferably from 5 to 200 μm, more preferably from 10 to 150 μm.

關於樹脂層，就變得容易滿足條件(A1)及(A2)之觀點而言，較佳為含有氟系整平劑、聚矽氧系整平劑、氟聚矽氧共聚物系整平劑等整平劑之一種或兩種以上。 The resin layer preferably contains a fluorine-based leveling agent, a polyfluorene-based leveling agent, and a fluoropolyoxy-oxygen copolymer-based leveling agent from the viewpoint of easily satisfying the conditions (A1) and (A2). One or more of the leveling agents.

又，關於整平劑之含量，就變得容易形成滿足條件(A1)及(A2)之表面的觀點而言，較佳為樹脂層之全部固形物成分之0.01~5質量%，更佳為0.1~3質量%。 Further, the content of the leveling agent is preferably from 0.01 to 5% by mass, more preferably from 0.01 to 5% by mass, based on the total surface of the resin layer, from the viewpoint of easily forming the surface satisfying the conditions (A1) and (A2). 0.1 to 3 mass%.

作為樹脂層塗佈液之溶劑，只要為通常所使用之有機溶劑，則無問題，該等溶劑中，較佳為酮系之溶劑，更佳為甲基乙基酮與甲基異丁基酮之混合溶劑。於樹脂層由兩層以上構成之情形時，較佳使用酮系溶劑作為最表面之樹脂層塗佈液之溶劑。酮系溶劑由於容易兼顧表面之平滑 化與和底層之密接性，故而於容易形成滿足條件(A1)及(A2)之表面的方面較佳。 The solvent of the resin layer coating liquid is not particularly limited as long as it is an organic solvent which is usually used. Among these solvents, a ketone solvent is preferred, and methyl ethyl ketone and methyl isobutyl ketone are more preferred. a mixed solvent. When the resin layer is composed of two or more layers, it is preferred to use a ketone solvent as a solvent for the coating liquid of the outermost resin layer. Ketone solvent is easy to balance the smoothness of the surface Since it is in close contact with the underlayer, it is preferable in that it is easy to form a surface satisfying the conditions (A1) and (A2).

實施形態A之書寫片藉由用作自上述式(i)導出之X為500MN/m以下之觸控面板筆(觸控面板筆(A))用書寫片，可使書寫感變得良好。 The writing sheet of the embodiment A can be used as a writing sheet for a touch panel pen (touch panel pen (A)) having an X of 500 MN/m or less derived from the above formula (i), and the writing feeling can be improved.

於使用實施形態A之書寫片作為自上述式(i)導出之X為100MN/m以下之觸控面板筆用書寫片之情形時，可使書寫感變得更良好，於使用實施形態A之書寫片作為自上述式(i)導出之X為0.1MN/m以上且50MN/m以下之觸控面板筆用書寫片之情形時，可使書寫感進一步變良好。 When the writing sheet of the embodiment A is used as the writing sheet for the touch panel pen having X of 100 MN/m or less derived from the above formula (i), the writing feeling can be further improved, and the embodiment A can be used. When the writing sheet is a sheet for a touch panel pen of 0.1 MN/m or more and 50 MN/m or less derived from the above formula (i), the writing feeling can be further improved.

觸控面板筆(A)之楊氏模數E、直徑D及算術平均高度Pa之各值只要滿足上述式(i)，則無特別限定，但較佳為大致以下之範圍。 The values of the Young's modulus E, the diameter D, and the arithmetic mean height Pa of the touch panel pen (A) are not particularly limited as long as they satisfy the above formula (i), but are preferably substantially in the following range.

楊氏模數E較佳為0.001~2.5GPa(1.0×106~2.5×109N/m2)，更佳為0.002~1.7GPa(2.0×106~1.7×109N/m2)。直徑D較佳為0.3~6.0mm，更佳為0.5~2.0mm。算術平均高度Pa較佳為0.01~150μm，更佳為1.0~120μm。 The Young's modulus E is preferably 0.001 to 2.5 GPa (1.0 × 10 6 to 2.5 × 10 9 N/m 2 ), more preferably 0.002 to 1.7 GPa (2.0 × 10 6 to 1.7 × 10 9 N/m 2 ) . The diameter D is preferably from 0.3 to 6.0 mm, more preferably from 0.5 to 2.0 mm. The arithmetic mean height Pa is preferably from 0.01 to 150 μm, more preferably from 1.0 to 120 μm.

又，觸控面板筆(A)之筆尖之曲率半徑並無特別限定，於曲率半徑為0.3~1.5mm之情形時，更容易發揮效果，於曲率半徑為0.5~0.8mm之情形時，容易進一步發揮效果。 Further, the radius of curvature of the tip of the touch panel pen (A) is not particularly limited, and when the radius of curvature is 0.3 to 1.5 mm, it is easier to exert an effect, and when the radius of curvature is 0.5 to 0.8 mm, it is easy to further Play the effect.

[觸控面板] [Touch Panel]

實施形態A之觸控面板係表面具有片之觸控面板，以作為該片之實施形態A之觸控面板筆用書寫片滿足條件(A1)及(A2)之側的面配置成朝向觸控面板之表面而成。 The touch panel of the embodiment A has a touch panel on the surface of the touch panel, and the surface of the touch panel pen for the touch panel of the embodiment A that satisfies the conditions (A1) and (A2) is arranged to face the touch. The surface of the panel is made.

作為觸控面板，可列舉：電阻膜式觸控面板、靜電電容式觸控面板、內嵌式觸控面板、光學式觸控面板、超音波式觸控面板及電磁感應式觸控面板等。 As the touch panel, a resistive touch panel, a capacitive touch panel, an in-cell touch panel, an optical touch panel, an ultrasonic touch panel, and an electromagnetic induction touch panel are exemplified.

電阻膜式觸控面板100係如圖3所示般，將以使具有導電膜30之上下一對透明基板20之導電膜30彼此對向之方式隔著間隔片40進行配置而成之構成設為基本構成，並將未圖示之電路連接於該基本構成而成者。 As shown in FIG. 3, the resistive touch panel 100 is configured such that the conductive film 30 having the pair of transparent substrates 20 on the conductive film 30 is placed opposite to each other with the spacer 40 interposed therebetween. In order to have a basic configuration, a circuit (not shown) is connected to the basic configuration.

於電阻膜式觸控面板之情形時，例如可列舉如下構成：使用實施形態A之書寫片10作為上部透明基板20，且以該書寫片10之滿足條件(A1)及(A2)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但電阻膜式觸控面板亦可為如下構成：於上部透明基板上將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式貼合；或者於上部透明基板上將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the resistive touch panel, for example, the writing sheet 10 of the embodiment A is used as the upper transparent substrate 20, and the writing sheet 10 satisfies the conditions (A1) and (A2). The surface is used in such a manner as to face the surface of the touch panel 100. Further, although not shown, the resistive touch panel may have a configuration in which the writing sheet of the embodiment A is placed on the upper transparent substrate so that the surface on the side of the conditions (A1) and (A2) faces the surface. Alternatively, the writing piece of the embodiment A is placed on the upper transparent substrate so that the surface on the side of the conditions (A1) and (A2) faces the surface, and is fixed by a frame or the like.

靜電電容式觸控面板可列舉表面型及投影型等，大多使用投影型。投影型之靜電電容式觸控面板係將電路連接於基本構成而成者，該基本構成係將X軸電極，及與該X軸電極正交之Y軸電極隔著絕緣體進行配置而成。若更具體地說明該基本構成，則可列舉：於1片透明基板上之不同面形成X軸電極及Y軸電極之態樣；於透明基板上依序形成X軸電極、絕緣體層、Y軸電極之態樣；如圖4所示般於透明基板20上形成X軸電極50，於另一透明基板20上形成Y軸電極60，經由接著劑層等絕緣體層70進行積層之態樣等。又，可列舉於該等基本態樣中進而積層另一透明基板 之態樣。 The capacitive touch panel is exemplified by a surface type and a projection type, and a projection type is often used. A projection type capacitive touch panel is obtained by connecting a circuit to a basic configuration in which an X-axis electrode and a Y-axis electrode orthogonal to the X-axis electrode are disposed via an insulator. More specifically, the basic configuration is such that an X-axis electrode and a Y-axis electrode are formed on different surfaces of one transparent substrate, and an X-axis electrode, an insulator layer, and a Y-axis are sequentially formed on the transparent substrate. As shown in FIG. 4, the X-axis electrode 50 is formed on the transparent substrate 20, the Y-axis electrode 60 is formed on the other transparent substrate 20, and the layer is laminated via the insulator layer 70 such as an adhesive layer. Moreover, it can be exemplified in these basic aspects to further laminate another transparent substrate The situation.

於靜電電容式觸控面板之情形時，例如可列舉如下構成：使用實施形態A之書寫片10作為表面側之透明基板20，且以該書寫片10之滿足條件(A1)及(A2)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但靜電電容式觸控面板亦可為如下構成：於表面側之透明基板上將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式貼合；或者於表面側之透明基板上將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the capacitive touch panel, for example, the writing sheet 10 of the embodiment A is used as the transparent substrate 20 on the front side, and the condition (A1) and (A2) of the writing sheet 10 are satisfied. The side faces are used toward the surface of the touch panel 100. Further, although not shown, the capacitive touch panel may be configured such that the writing sheet of the embodiment A satisfies the surface on the side of the conditions (A1) and (A2) on the transparent substrate on the front side. Alternatively, the writing piece of the embodiment A can be placed on the transparent substrate on the front side so that the surface on the side of the conditions (A1) and (A2) faces the surface, and is fixed by a frame or the like.

電磁感應式觸控面板係使用產生磁場之專用筆之觸控面板。電磁感應式觸控面板至少具有檢測自筆產生之電磁能量之感測器部，進而於感測器部上具有透明基板。該透明基板亦可為多層構成。 The electromagnetic induction type touch panel is a touch panel using a special pen that generates a magnetic field. The electromagnetic induction type touch panel has at least a sensor portion for detecting electromagnetic energy generated from a pen, and further has a transparent substrate on the sensor portion. The transparent substrate may also be composed of a plurality of layers.

於電磁感應式觸控面板之情形時，例如可列舉如下構成：使用實施形態A之書寫片作為位於感測器部上之透明基板中最表面之透明基板，且以該書寫片之滿足條件(A1)及(A2)之側的面朝向觸控面板之表面的方式使用。或者，於電磁感應式觸控面板之情形時，亦可為如下構成：於位於感測器部上之透明基板中最表面之透明基板上，將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式貼合；或者於該最表面之透明基板上，將實施形態A之書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the electromagnetic induction type touch panel, for example, the writing sheet of the embodiment A is used as the transparent substrate on the outermost surface of the transparent substrate on the sensor portion, and the condition of the writing sheet is satisfied ( The faces on the sides of A1) and (A2) are used toward the surface of the touch panel. Alternatively, in the case of the electromagnetic induction type touch panel, the writing piece of the embodiment A can be satisfied on the transparent substrate of the outermost surface of the transparent substrate located on the sensor portion (A1). And the surface on the side of (A2) is bonded to the surface; or on the transparent substrate of the outermost surface, the surface of the writing sheet of the embodiment A is such that the surface on the side of the conditions (A1) and (A2) faces the surface. It is placed and fixed by a frame or the like.

內嵌式觸控面板係於在2片玻璃基板間夾持液晶而成之液晶元件之內部嵌入有電阻膜式、靜電電容式、光學式等觸控面板功能者。 The in-cell touch panel is in which a touch panel function such as a resistive film type, a capacitive type, or an optical type is embedded in a liquid crystal element in which a liquid crystal is sandwiched between two glass substrates.

於內嵌式觸控面板之情形時，例如可列舉如下構成：將實施形態A之 書寫片以滿足條件(A1)及(A2)之側的面朝向表面之方式貼合於表面側之玻璃基板而使用。再者，亦可於表面側之玻璃基板與實施形態A之書寫片之間具有偏光板等其他層。 In the case of an in-cell touch panel, for example, the following configuration is possible: The writing sheet is used by being bonded to the glass substrate on the front side so that the surface on the side of the conditions (A1) and (A2) faces the surface. Further, another layer such as a polarizing plate may be provided between the glass substrate on the front side and the writing sheet in the embodiment A.

[顯示裝置] [display device]

實施形態A之顯示裝置係具有觸控面板之顯示裝置，且該觸控面板為實施形態A之觸控面板。 The display device of Embodiment A is a display device having a touch panel, and the touch panel is the touch panel of Embodiment A.

作為顯示元件，可列舉：液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件、內嵌式觸控面板液晶顯示元件等。於顯示元件為液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件之情形時，於該等顯示元件上載置實施形態A之觸控面板。 Examples of the display element include a liquid crystal display element, an EL display element, a plasma display element, an electronic paper element, and an in-cell touch panel liquid crystal display element. In the case where the display element is a liquid crystal display element, an EL display element, a plasma display element, or an electronic paper element, the touch panel of the embodiment A is placed on the display elements.

實施形態A之顯示裝置由於不會過度損害表面而使書寫感變良好，故而可抑制損害顯示元件之解像度之情況。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。 In the display device of the embodiment A, the writing feeling is improved without excessively damaging the surface, so that the resolution of the display element can be suppressed. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed.

[觸控面板筆用書寫片之揀選方法] [Selection method of writing pad for touch panel pen]

關於實施形態A之觸控面板筆用書寫片之揀選方法，係揀選具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)之表面的片作為下述之觸控面板筆(A)用書寫片。 Regarding the picking method of the touch panel pen for the touch panel of the embodiment A, the maximum height roughness Rz 0.8 of JIS B0601:2001 having a cutoff value of 0.8 mm and the maximum valley depth Rv 0.8 of the roughness curve, and a cutoff value of 2.5 are selected. JIS B0601: 1994 Partial Peak Interval S 2.5 A sheet satisfying the following conditions (A1) and (A2) is used as a writing sheet for the touch panel pen (A) described below.

0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.35≦Rv 0.8 /Rz 0.8 ≦0.60 (A1)

0.05mm≦S2.5≦0.30mm (A2) 0.05mm≦S 2.5 ≦0.30mm (A2)

<觸控面板筆(A)> <Touch Panel Pen (A)>

該觸控面板筆係於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下。 The touch panel pen is set to set the apparent Young's modulus of the structure of the pen tip and the shaft constituting the touch panel pen to E, the diameter of the pen tip to D, and the unit measurement interval (0.5 mm) of the pen tip. When the arithmetic mean height of the cross-sectional curve is Pa, the X derived from the following formula (i) is 500 MN/m or less.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

關於實施形態A之觸控面板筆用書寫片之揀選方法，即便不進行觸控面板筆之書寫試驗，亦可揀選上述式(i)之X為500MN/m以下之觸控面板筆(觸控面板筆(A))之書寫感良好之書寫片，而可高效率地進行書寫片之製品設計、品質管理。。 Regarding the picking method of the touch panel pen for writing in the embodiment A, even if the writing test of the touch panel pen is not performed, the touch panel pen with the X of the above formula (i) of 500 MN/m or less can be selected (touch The writing pen of the panel pen (A)) is excellent in writing, and the product design and quality management of the writing sheet can be efficiently performed. .

揀選觸控面板筆用書寫片之判定條件係將上述(A1)及(A2)設為必須條件。條件(A1)及(A2)之判定條件較佳為上述實施形態A之書寫片之較佳之數值範圍。例如條件(A1)之判定條件較佳為0.37≦Rv0.8/Rz0.8≦0.58。 The determination conditions for picking the touch panel pen writing sheet are that the above (A1) and (A2) are necessary conditions. The conditions for the determination of the conditions (A1) and (A2) are preferably the preferred numerical ranges of the writing sheet of the above-described embodiment A. For example, the condition for the condition (A1) is preferably 0.37 ≦ Rv 0.8 / Rz 0.8 ≦ 0.58.

關於實施形態A之觸控面板筆用書寫片之揀選方法，就使書寫感變得更良好之觀點及抑制顯示元件之解像度降低之觀點而言，更佳為將以下所列舉之條件(A3)~(A6)之一項以上設為判定條件，進而較佳為將(A3)~(A6)全部設為判定條件。 The picking method of the touch panel pen for the touch panel of the embodiment A is more preferably the following conditions (A3) from the viewpoint of improving the writing feeling and suppressing the resolution of the display element. One or more of ~(A6) is determined as a determination condition, and it is preferable to set all of (A3) to (A6) as determination conditions.

0.01μm≦Ptm≦1.00μm (A3) 0.01μm≦Ptm≦1.00μm (A3)

0.01μm≦Ra0.8≦0.50μm (A4) 0.01μm≦Ra 0.8 ≦0.50μm (A4)

Cs為250%以上 (A5) C s is 250% or more (A5)

霧度未達5.0% (A6) Haze is less than 5.0% (A6)

條件(A3)~(A6)之判定條件較佳為上述實施形態A之書寫片之較 佳之數值範圍。 The condition for the determination of the conditions (A3) to (A6) is preferably the comparison of the writing sheets of the above embodiment A. The range of values is good.

<實施形態B> <Embodiment B>

[觸控面板筆用書寫片] [Touch Panel Pen Writing Tablet]

實施形態B之觸控面板筆用書寫片係下述之觸控面板筆(B)用書寫片，該書寫片係具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且該書寫片之JIS K7136：2000之霧度滿足下述條件(B3)者。 The touch panel pen for writing in the embodiment B is a writing sheet for the touch panel pen (B) described below, which has a maximum height roughness Rz 0.8 and roughness of JIS B0601:2001 with a cutoff value of 0.8 mm. The maximum mountain height Rp 0.8 of the curve and the skewness Psk of the profile curve in the measurement interval of 1 mm satisfy the surfaces of the following conditions (B1) and (B2), and the haze of JIS K7136:2000 of the writing sheet satisfies the following conditions (B3).

0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.50<Rp 0.8 /Rz 0.8 ≦0.75 (B1)

0.60≦Psk (B2) 0.60≦Psk (B2)

霧度未達5.0% (B3) Haze is less than 5.0% (B3)

<觸控面板筆(B)> <Touch Panel Pen (B)>

該觸控面板筆係於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m。 The touch panel pen is set to set the apparent Young's modulus of the structure of the pen tip and the shaft constituting the touch panel pen to E, the diameter of the pen tip to D, and the unit measurement interval (0.5 mm) of the pen tip. When the arithmetic mean height of the profile curve is set to Pa, X derived from the following formula (i) exceeds 500 MN/m.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

再者，楊氏模數E之單位為「N/m2」，筆尖之直徑D之單位為「m」，算術平均高度Pa之單位為「m」。又，「M」係意指「mega(106)」。 Furthermore, the unit of the Young's modulus E is "N/m 2 ", the unit of the diameter D of the nib is "m", and the unit of the arithmetic mean height Pa is "m". Also, "M" means "mega(10 6 )".

圖1係表示實施形態B之觸控面板筆用書寫片10一實施形態之剖面圖。圖1之觸控面板筆用書寫片10係於塑膠膜1之一面具有樹脂層2。圖2之觸控面板筆用書寫片10係成為樹脂層2之單層構造。 Fig. 1 is a cross-sectional view showing an embodiment of a touch panel pen writing sheet 10 of the embodiment B. The touch panel pen writing sheet 10 of FIG. 1 has a resin layer 2 on one side of the plastic film 1. The touch panel pen writing sheet 10 of FIG. 2 is a single layer structure of the resin layer 2.

實施形態B之觸控面板筆用書寫片可一表面滿足條件(B1)及(B2)，亦可兩表面滿足條件(B1)及(B2)。 The writing sheet for the touch panel pen of Embodiment B can satisfy the conditions (B1) and (B2) on one surface, or the conditions (B1) and (B2) can be satisfied on both surfaces.

實施形態B之觸控面板筆用書寫片可為單片狀之形態，亦可為將長條片捲繞成輥狀之輥狀形態。 The writing sheet for the touch panel pen according to the embodiment B may be in the form of a single piece, or may be in the form of a roll in which the long piece is wound into a roll.

以下，有將觸控面板筆用書寫片稱為「書寫片」之情形。又，以下，有將滿足條件(B1)及(B2)之表面稱為「書寫面」之情形。 Hereinafter, there is a case where the writing piece for a touch panel pen is referred to as a "writing sheet". In addition, hereinafter, the surface satisfying the conditions (B1) and (B2) is referred to as a "writing surface".

<書寫面> <writing surface>

實施形態B之觸控面板筆用書寫片係至少一表面滿足條件(B1)及(B2)者。 The writing sheet for a touch panel pen according to Embodiment B is one in which at least one surface satisfies the conditions (B1) and (B2).

實施形態B中，條件(B1)係使用截止值0.8mm之粗糙度參數，另一方面，條件(B2)係使用剖面參數。以下，對該理由進行說明。 In the embodiment B, the condition (B1) uses a roughness parameter having a cutoff value of 0.8 mm, and on the other hand, the condition (B2) uses a profile parameter. Hereinafter, the reason will be described.

截止值係表示自由粗糙度成分(高頻成分)與波紋成分(低頻成分)所構成之剖面曲線將波紋成分截止之程度的值。換言之，截止值係表示自剖面曲線將波紋成分(低頻成分)截止之濾波器之細度的值。若截止值較大，則濾波器較疏，因此波紋成分中較大之波紋成分被截止，但較小之波紋成分未被截止。另一方面，若截止值較小，則濾波器較密，因此波紋成分基本上被截止。即，截止值較小之粗糙度參數係對高頻成分之凹凸之影響較強，截止值較大之粗糙度參數係對低頻成分之凹凸之影響變強。如條件(B1)之截止值0.8mm之粗糙度參數係表示高頻成分(微小區域)之凹凸。 The cut-off value is a value indicating a degree to which the cross-correlation curve composed of the free-roughness component (high-frequency component) and the corrugated component (low-frequency component) cuts the ripple component. In other words, the cutoff value is a value indicating the fineness of the filter which cuts the ripple component (low frequency component) from the profile curve. If the cutoff value is large, the filter is sparse, so the larger ripple component of the ripple component is cut off, but the smaller ripple component is not cut off. On the other hand, if the cutoff value is small, the filter is dense, and thus the ripple component is substantially cut off. That is, the roughness parameter having a small cutoff value has a strong influence on the unevenness of the high-frequency component, and the roughness parameter having a large cutoff value has a strong influence on the unevenness of the low-frequency component. The roughness parameter of the cutoff value of 0.8 mm as the condition (B1) indicates the unevenness of the high frequency component (micro area).

另一方面，剖面參數係包含粗糙度成分(高頻成分)及波紋成分(低頻成分)兩者之凹凸，且表示較大區域之凹凸。 On the other hand, the profile parameter includes irregularities of both the roughness component (high-frequency component) and the ripple component (low-frequency component), and indicates unevenness in a large region.

本發明人等對與書寫片之書寫感之關係進行了努力研究。結果發現，筆尖之物性會嚴重影響書寫感。此處所謂筆尖之物性，係基於觸控面板筆之筆尖及軸之構造體之硬度(楊氏模數E)、筆尖之直徑D及筆尖之粗糙度(筆尖之剖面曲線的算術平均高度Pa)，自上述式(i)算出之「X」。X會嚴重影響書寫感之情況可以下述方式進行說明。 The inventors of the present invention have made an effort to study the relationship with the writing sense of a writing sheet. It was found that the physical properties of the nib can seriously affect the sense of writing. The physical property of the pen tip here is based on the hardness of the structure of the pen tip and the axis of the touch panel pen (Young's modulus E), the diameter D of the pen tip, and the roughness of the pen tip (the arithmetic mean height Pa of the profile curve of the pen tip) , "X" calculated from the above formula (i). The case where X seriously affects the sense of writing can be explained in the following manner.

首先，楊氏模數E係表示筆尖因負載而變形之容易性的基本物性，且存在如下傾向：楊氏模數E越小，筆尖越容易因負載而變形。繼而，直徑D之平方係表示分散負載之程度，且存在如下傾向：直徑D之平方越小，越難以分散負載，而筆尖越容易因負載而變形。即，表示如下情況：「楊氏模數E×直徑D×直徑D」越小，筆尖越容易變形，而筆尖與書寫片越容易接觸。繼而，筆尖之剖面曲線的算術平均高度Pa係表示筆尖接觸書寫片之程度。具體而言，Pa越大，筆尖與書寫片越會變得點接觸，而筆尖與書寫片之接觸面積變得越少。因此，表示如下情況：自[楊氏模數E×直徑D×直徑D]÷Pa算出之「X」之值越小，筆尖與書寫片越容易密接，而會對書寫感產生重大影響。 First, the Young's modulus E is a basic physical property indicating the easiness of deformation of the nib due to the load, and there is a tendency that the smaller the Young's modulus E is, the more easily the nib is deformed by the load. Then, the square of the diameter D indicates the degree of dispersion load, and there is a tendency that the smaller the square of the diameter D, the more difficult it is to disperse the load, and the pen tip is more likely to be deformed by the load. That is, the case where the "Young's modulus E × diameter D × diameter D" is smaller, the pen tip is more easily deformed, and the pen tip and the writing piece are more easily contacted. Then, the arithmetic mean height Pa of the profile curve of the nib indicates the extent to which the pen tip contacts the writing piece. Specifically, the larger the Pa, the more the pen tip and the writing piece become in point contact, and the contact area between the pen tip and the writing piece becomes smaller. Therefore, the case where the value of "X" calculated from [Young's modulus E × diameter D × diameter D] ÷ Pa is smaller, the easier the pen tip and the writing piece are in close contact with each other, and the writing feeling is greatly affected.

進而，本發明人等對X值與書寫感之關係進行了努力研究。其結果發現了以下之(a)、(b)。 Further, the inventors of the present invention have made an effort to study the relationship between the X value and the writing feeling. As a result, the following (a) and (b) were found.

(a)於使筆接觸書寫片之階段中筆尖接地於書寫片之表面。於X值較大之情形時，筆尖難以密接於書寫片之表面，因此認為當筆尖越過高頻成分(微小區域)之凸部時會觸發書寫開始。因此，微小區域之凹凸(截止值0.8mm之粗糙度參數)對開始書寫時之書寫感之影響變大。 (a) The tip of the pen is grounded to the surface of the writing blade at the stage of bringing the pen into contact with the writing piece. When the X value is large, the nib is difficult to adhere to the surface of the writing sheet, and therefore it is considered that the writing start is triggered when the nib passes over the convex portion of the high-frequency component (micro area). Therefore, the unevenness of the minute area (roughness parameter of the cutoff value of 0.8 mm) has an influence on the writing feeling at the start of writing.

(b)於開始書寫以後之階段中，筆尖沿著較大區域之凹凸表面進行移 動。因此，較大區域之凹凸對開始書寫以後之書寫感之影響變大。 (b) During the period after the start of writing, the nib moves along the concave surface of the larger area move. Therefore, the influence of the unevenness of a large area on the writing feeling after starting writing becomes large.

如上所述，於X值較大之情形時，微小區域之凹凸(截止值0.8mm之粗糙度參數)對開始書寫時之書寫感之影響變大。另一方面，較大區域之凹凸(剖面參數)對開始書寫以後之書寫感之影響變大。因此，於實施形態B中，條件(B1)係使用截止值0.8mm之粗糙度參數，另一方面，條件(B2)係使用剖面參數。 As described above, when the X value is large, the unevenness of the minute region (roughness parameter of the cutoff value of 0.8 mm) has an influence on the writing feeling at the time of starting writing. On the other hand, the unevenness (profile parameter) of a large area has a large influence on the writing feeling after starting writing. Therefore, in the embodiment B, the condition (B1) uses a roughness parameter having a cutoff value of 0.8 mm, and the condition (B2) uses a profile parameter.

再者，於書寫文字或描繪圖形時，大多停止書寫一瞬後再開始書寫(例如，於轉換書寫方向時，通常停止書寫一瞬。又，於移動書寫位置時亦會停止書寫一瞬)。本發明人等將此種剛再開始書寫後亦視為「開始書寫」。 Furthermore, when writing text or drawing graphics, most of the writing stops writing for a while before writing (for example, when switching the writing direction, the writing is usually stopped for a while. Also, when the writing position is moved, the writing is stopped for a moment). The present inventors have also regarded this type of writing as "beginning writing" immediately after writing.

條件(B1)係要求截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8，及截止值0.8mm之JIS B0601：2001之粗糙度曲線之最大山高Rp0.8滿足0.50<Rp0.8/Rz0.8≦0.75。 Condition (B1) is the maximum height roughness Rz 0.8 of JIS B0601:2001 with a cutoff value of 0.8 mm and the maximum mountain height Rp 0.8 of the roughness curve of JIS B0601:2001 with a cutoff value of 0.8 mm satisfying 0.50<Rp 0.8 /Rz 0.8 ≦ 0.75.

條件(B1)之截止值為0.8mm。條件(B1)係表示高頻成分之凹凸，且主要會對開始書寫時之書寫感產生影響之參數。 The cutoff value of the condition (B1) is 0.8 mm. The condition (B1) is a parameter indicating the unevenness of the high-frequency component and mainly affecting the writing feeling at the time of starting writing.

條件(B1)之Rp0.8/Rz0.8係表示Rz(山高最大值與谷深最大值之和)中之Rp(山高之最大值)之比例。如上所述，於使筆接觸書寫片之階段中筆尖接地於書寫片之表面。於X值較大之情形時，筆尖難以密接於書寫片之表面，因此當筆尖越過高頻成分(微小區域)之凸部時會觸發書寫開始。因此，Rp0.8/Rz0.8會對開始書寫時之書寫感產生重大影響。 The Rp 0.8 /Rz 0.8 of the condition (B1) represents the ratio of Rp (the maximum of the mountain height) in Rz (the sum of the mountain height maximum and the valley depth maximum). As described above, the tip of the pen is grounded to the surface of the writing blade at the stage of bringing the pen into contact with the writing piece. When the X value is large, the nib is difficult to adhere to the surface of the writing sheet, so that when the nib passes over the convex portion of the high-frequency component (micro area), the writing starts. Therefore, Rp 0.8 /Rz 0.8 will have a significant impact on the sense of writing when writing starts.

於實施形態B中，藉由將Rp0.8/Rz0.8設為上述範圍內，而開始書寫時之筆尖之摩擦阻力變得適當，而可使開始書寫時之書寫感變得良好。又，藉由將Rp0.8/Rz0.8設為上述範圍內，可容易於書寫片之表面使筆靜止。 In the embodiment B, by setting Rp 0.8 /Rz 0.8 within the above range, the frictional resistance of the nib at the time of starting writing becomes appropriate, and the writing feeling at the time of starting writing can be improved. Further, by setting Rp 0.8 /Rz 0.8 within the above range, the pen can be easily stopped on the surface of the writing sheet.

另一方面，於Rp0.8/Rz0.8為0.50以下之情形時，山之比例過少，因此摩擦阻力較小而成為光滑之感觸，而無法使開始書寫時之書寫感變得良好。再者，於Rp0.8/Rz0.8為0.50以下之情形時，難以於書寫結束時使筆靜止。又，於Rp0.8/Rz0.8超過0.75之情形時，山之比例過多，因此被卡住感變強，而無法使開始書寫時之書寫感變得良好。 On the other hand, when Rp 0.8 /Rz 0.8 is 0.50 or less, since the ratio of the mountain is too small, the frictional resistance is small and becomes a smooth feeling, and the writing feeling at the start of writing cannot be made good. Further, when Rp 0.8 /Rz 0.8 is 0.50 or less, it is difficult to make the pen stand still at the end of writing. Further, when Rp 0.8 /Rz 0.8 exceeds 0.75, the ratio of the mountain is too large, so that the feeling of being stuck becomes strong, and the writing feeling at the start of writing cannot be made good.

條件(B1)較佳滿足0.53≦Rp0.8/Rz0.8≦0.70，更佳滿足0.58≦Rp0.8/Rz0.8≦0.65。 The condition (B1) preferably satisfies 0.53 ≦ Rp 0.8 / Rz 0.8 ≦ 0.70, more preferably satisfies 0.58 ≦ Rp 0.8 / Rz 0.8 ≦ 0.65.

再者，算出條件(B1)之成為基準之Rp0.8、Rz0.8係設為對20個樣品各測量1次時之平均值。又，下述之Psk、Ptm、S2.5及Ra0.8、透過清晰度及霧度亦設為對20個樣品各測量1次時之平均值。 In addition, Rp 0.8 and Rz 0.8 which are the basis of the calculation condition (B1) are the average values when the measurement is performed once for each of the 20 samples. Further, the following Psk, Ptm, S 2.5, and Ra 0.8 , transmission clarity, and haze were also average values when the measurement was performed once for each of the 20 samples.

條件(B2)係要求測量區間1mm中之剖面曲線的偏斜度Psk為0.60以上。Psk係包含粗糙度成分(高頻成分)及波紋成分(低頻成分)兩者之剖面形狀之參數，且表示較大區域之凹凸。 The condition (B2) requires that the skewness Psk of the profile curve in the measurement section of 1 mm is 0.60 or more. Psk is a parameter including a cross-sectional shape of both a roughness component (high-frequency component) and a corrugation component (low-frequency component), and indicates a large-area unevenness.

Psk係關於凹凸之概率密度之參數。若未滿足條件(B2)，則表示如下情況：若Psk較小，則於較大區域之凹凸中凸部之比例較高。於較大區域之凹凸中凸部之比例較高之情形時，筆尖未沿著凹凸前進，而變得以連接凸部之頂點之方式移動，而摩擦阻力降低。因此，於未滿足條件(B2)之情形時，開始書寫以後之摩擦阻力降低而成為光滑之感觸。 Psk is a parameter about the probability density of bumps. If the condition (B2) is not satisfied, it means that if the Psk is small, the proportion of the convex portion in the unevenness of the larger area is high. When the ratio of the convex portions in the unevenness of the larger region is high, the nib does not advance along the concavities and convexities, but moves toward the apex of the convex portions, and the frictional resistance is lowered. Therefore, when the condition (B2) is not satisfied, the frictional resistance after the start of writing is lowered to become a smooth feeling.

另一方面，若滿足條件(B2)且Psk較大，則表示於較大區域之凹凸中凹部之比例較高。於該情形時，由於筆尖沿著較大區域之凹凸前進，故而被賦予適度之摩擦阻力。 On the other hand, if the condition (B2) is satisfied and Psk is large, it means that the ratio of the concave portion in the uneven portion of the larger region is high. In this case, since the nib advances along the unevenness of the larger area, moderate frictional resistance is imparted.

Psk係將JIS B0601：2001之粗糙度曲線之偏斜度Rsk應用於剖面曲線 而獲得者，且可藉由與Rsk相同之式算出。 Psk applies the skewness Rsk of the roughness curve of JIS B0601:2001 to the profile curve. The winner can be calculated by the same formula as Rsk.

再者，不使用將條件(B1)之Rp0.8/Rz0.8應用於剖面曲線而獲得之參數作為條件(B2)之剖面參數的原因在於：關於剖面參數，由於區域較大，故而若為如Rp0.8/Rz0.8之使用區域內最大值之參數，則每個測量區域之誤差過大，而作為參數之可靠性變低。 Further, the reason why the parameter obtained by applying the condition (B1) of Rp 0.8 /Rz 0.8 to the profile curve is not used as the profile parameter of the condition (B2) is that, as for the profile parameter, since the region is large, it is such as Rp The parameter of the maximum value in the use area of 0.8 / Rz 0.8 is that the error of each measurement area is too large, and the reliability as a parameter becomes low.

條件(B2)較佳滿足0.80≦Psk，更佳滿足0.90≦Psk。 The condition (B2) preferably satisfies 0.80 ≦ Psk, and more preferably satisfies 0.90 ≦ Psk.

再者，於Psk過大之情形時，存在防眩性變差之傾向，因此Psk較佳為5.00以下，更佳為3.00以下，進而較佳為2.00以下。 Further, when the Psk is too large, the antiglare property tends to be deteriorated. Therefore, Psk is preferably 5.00 or less, more preferably 3.00 or less, still more preferably 2.00 or less.

<霧度> <Haze>

實施形態B之觸控面板筆用書寫片係JIS K7136：2000之霧度滿足下述條件(B3)者。 The haze of the touch panel pen for the touch panel of the embodiment B is JIS K7136:2000, which satisfies the following condition (B3).

霧度為5.0%以上 (B3) Haze is 5.0% or more (B3)

藉由滿足條件(B3)，且滿足上述條件(B1)及(B2)，可使防眩性及書寫感變得良好。 By satisfying the condition (B3) and satisfying the above conditions (B1) and (B2), the anti-glare property and the writing feeling can be improved.

霧度較佳為10.0%以上，更佳為15.0%以上。再者，若霧度過高，則顯示元件之解像度大幅降低。因此，霧度較佳為40.0%以下，更佳為30.0%以下。 The haze is preferably 10.0% or more, more preferably 15.0% or more. Furthermore, if the haze is too high, the resolution of the display element is greatly reduced. Therefore, the haze is preferably 40.0% or less, more preferably 30.0% or less.

於對霧度及下述之透過圖像清晰度進行測量時，將光自書寫片之與書寫面相反側之表面入射。於書寫片之兩面滿足上述條件(B1)及(B2)之情形時，光入射面可為任一面。 When measuring the haze and the transmission image clarity described below, light is incident from the surface of the writing sheet opposite to the writing surface. When the two surfaces of the writing sheet satisfy the above conditions (B1) and (B2), the light incident surface may be either surface.

又，實施形態B之書寫片較佳於將單位測量區間設為1mm，將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間 中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt，將5個測量區間之Pt的平均值設為Ptm時，書寫面之Ptm滿足下述條件(B4)。 Further, in the writing sheet of the embodiment B, it is preferable to set the unit measurement section to 1 mm, and to set the maximum value of the mountain height of the section curve in the unit measurement section to Pp, and to measure the unit measurement section. The maximum valley depth of the profile curve in the middle is set to Pv, and the sum of Pp and Pv is set as the maximum profile height Pt of the profile curve in the unit measurement section, and when the average value of Pt of the five measurement sections is set to Ptm, writing The Ptm of the surface satisfies the following condition (B4).

0.30μm≦Ptm≦7.00μm (B4) 0.30μm≦Ptm≦7.00μm (B4)

再者，所謂單位測量區間中之剖面曲線的山高最大值Pp，係將位於單位測量區間之標高平均線之上的部分定義為山，表示最高之山之高度者。又，所謂單位測量區間中之剖面曲線的谷深最大值Pv，係將位於單位測量區間之標高平均線之下的部分定義為谷，表示最深之谷之深度者。 Further, the mountain height maximum value Pp of the profile curve in the unit measurement section is defined as a portion above the elevation average line of the unit measurement section, indicating the height of the highest mountain. Further, the valley depth maximum value Pv of the profile curve in the unit measurement section is defined as a valley which is located below the elevation line of the unit measurement section, and indicates the depth of the deepest valley.

如上所述，較大區域之凹凸對開始書寫以後之書寫感之影響較大。條件(B4)表示於較大區域之凹凸中，標高差不會過小且不會過大。因此，藉由將條件(B4)設為上述範圍，可使開始書寫直至書寫結束之書寫感變得更良好。 As described above, the unevenness of the larger area has a greater influence on the writing feeling after the start of writing. The condition (B4) is expressed in the unevenness of the larger area, and the elevation difference is not too small and is not excessive. Therefore, by setting the condition (B4) to the above range, the writing feeling from the start of writing to the end of writing can be made better.

條件(B4)更佳滿足0.50μm≦Ptm≦5.00μm，進而較佳滿足1.00μm≦Ptm≦4.00μm。 The condition (B4) more preferably satisfies 0.50 μm ≦ Ptm ≦ 5.00 μm, and further preferably satisfies 1.00 μm ≦ Ptm ≦ 4.00 μm.

又，實施形態B之書寫片較佳於將截止值2.5mm之JIS B0601：1994之局部山頂平均間隔設為S2.5時，書寫面之S2.5滿足下述條件(B5)。 Further, Form B of Embodiment writing sheet in the preferred cutoff value of 2.5mm JIS B0601: 1994 is set to the average spacing of local Peak 2.5 S, S 2.5 of the writing surface satisfies the following condition (B5).

0.02mm≦S2.5≦0.20mm (B5) 0.02mm≦S 2.5 ≦0.20mm (B5)

條件(B5)之截止值為2.5mm。條件(B5)係表示低頻成分之凹凸，且主要會對開始書寫以後之書寫感產生影響之參數。藉由滿足條件(B5)，而開始書寫以後之摩擦阻力變得適當，而可使開始書寫以後之書寫感變得更良好。 The cutoff value of condition (B5) is 2.5 mm. The condition (B5) is a parameter indicating the unevenness of the low-frequency component and mainly affecting the writing feeling after the start of writing. By satisfying the condition (B5), the frictional resistance after the start of writing becomes appropriate, and the writing feeling after the start of writing can be made better.

條件(B5)更佳滿足0.02mm≦S2.5≦0.15mm，進而較佳滿足0.03mm≦S2.5≦0.15mm。 The condition (B5) more preferably satisfies 0.02 mm ≦ S 2.5 ≦ 0.15 mm, and further preferably satisfies 0.03 mm ≦ S 2.5 ≦ 0.15 mm.

再者，若將S2.5設為0.20mm以下，則於提高防眩性之方面上亦較佳。 Further, if S 2.5 to 0.20mm or less, it is also preferred to improve the aspect of the antiglare property.

又，實施形態B之書寫片之書寫面較佳為截止值0.8mm之JIS B0601：2001之算術平均粗糙度Ra0.8滿足下述條件(B6)。 Further, the writing surface of the writing sheet of the embodiment B preferably has an arithmetic mean roughness Ra 0.8 of JIS B0601:2001 having a cutoff value of 0.8 mm, which satisfies the following condition (B6).

0.10μm≦Ra0.8≦0.25μm (B6) 0.10μm≦Ra 0.8 ≦0.25μm (B6)

藉由將Ra0.8設為上述範圍，可使書寫感變得更良好。又，藉由將Ra0.8設為0.10μm以上，可容易使防眩性變良好。又，藉由將Ra0.8設為0.25μm以下，而可藉由書寫片抑制顯示元件之解像度大幅降低。 By setting Ra 0.8 to the above range, the writing feeling can be made better. Moreover, by setting Ra 0.8 to 0.10 μm or more, the anti-glare property can be easily improved. Further, by setting Ra 0.8 to 0.25 μm or less, it is possible to suppress the resolution of the display element from being greatly lowered by the writing sheet.

條件(B6)更佳為0.10μm≦Ra0.8≦0.20μm，進而較佳為0.13μm≦Ra0.8≦0.17μm。 The condition (B6) is more preferably 0.10 μm ≦Ra 0.8 ≦0.20 μm, further preferably 0.13 μm ≦Ra 0.8 ≦0.17 μm.

又，實施形態B之書寫片之書寫面較佳為截止值0.8mm之JIS B0601：2001之十點平均粗糙度RzJIS0.8滿足下述條件(B7)。 Further, in the writing surface of the writing sheet of the embodiment B, it is preferable that the ten-point average roughness Rz JIS0.8 of JIS B0601:2001 having a cutoff value of 0.8 mm satisfies the following condition (B7).

0.50μm≦RzJIS0.8≦1.50μm (B7) 0.50μm ≦Rz JIS0.8 ≦ 1.50μm (B7)

藉由將RzJIS0.8設為上述範圍，可使書寫感變得更良好。又，藉由將RzJIS0.8設為0.50μm以上，可容易使防眩性變良好。又，藉由將RzJIS0.8設為1.50μm以下，可一面賦予一面藉由書寫片抑制顯示元件之解像度大幅降低。尤其是於可抑制像素密度為300ppi以上之超高清顯示元件之解像度降低之方面較佳。 By setting Rz JIS0.8 to the above range, the writing feeling can be made better. Moreover, by setting Rz JIS0.8 to 0.50 μm or more, the anti-glare property can be easily improved. Further, by setting Rz JIS0.8 to 1.50 μm or less, it is possible to suppress the resolution of the display element from being greatly lowered by the writing sheet. In particular, it is preferable in that the resolution of the ultra high definition display element having a pixel density of 300 ppi or more can be suppressed.

條件(B7)更佳為0.50μm≦RzJIS0.8≦1.25μm，進而較佳為0.60μm≦RzJIS0.8≦1.00μm。 The condition (B7) is more preferably 0.50 μm ≦ Rz JIS 0.8 ≦ 1.25 μm, further preferably 0.60 μm ≦ Rz JIS 0.8 ≦ 1.00 μm.

進而，實施形態B之書寫片較佳於將觸控面板筆(B)於以 60度之角度接觸書寫面之狀態下進行固定，一面對該觸控面板筆(B)施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於觸控面板筆(B)之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，滿足0.30≦μk/μs≦0.58之關係。再者，於實施形態B中，動摩擦係數μk意指全部測量時間之動摩擦係數之平均值。靜摩擦係數係設為自摩擦力0開始隨著測量時間之經過，成為動摩擦係數以上之最初之摩擦力之峰值。摩擦係數之測量間隔較佳設為0.02秒。 Further, the writing sheet of the embodiment B is preferably such that the touch panel pen (B) is The angle of 60 degrees is fixed in contact with the writing surface, and a vertical load of 100 gf is applied to the touch panel pen (B) while scanning the length of one-way 40 mm at a speed of 14 mm/sec, and this time acts on the touch panel pen. (B) The dynamic friction coefficient in the scanning direction is set to μk, and when the static friction coefficient is set to μs, the relationship of 0.30 ≦μk/μs ≦ 0.58 is satisfied. Further, in the embodiment B, the dynamic friction coefficient μk means the average value of the dynamic friction coefficients of all the measurement times. The static friction coefficient is set to be the peak value of the initial frictional force equal to or higher than the dynamic friction coefficient as the measurement time elapses from the frictional force 0. The measurement interval of the coefficient of friction is preferably set to 0.02 seconds.

於書寫文字或描繪圖形時，大多停止書寫一瞬後再開始書寫(例如，於轉換書寫方向時，通常停止書寫一瞬。又，於移動書寫位置時亦會停止書寫一瞬)。於如上述般停止書寫一瞬後再開始書寫時，容易受到靜摩擦係數與動摩擦係數之差之影響，但藉由將μk/μs設為上述範圍，即便於停止書寫一瞬後再開始書寫時亦可實現所想像之書寫(例如，可將書寫方向轉換至想要之方向)。 When writing text or drawing graphics, most of them stop writing for a while before starting to write (for example, when switching the writing direction, usually stop writing for a moment. Also, when writing the writing position, the writing will stop writing for a moment). When writing is stopped as soon as the writing is started as described above, it is easily affected by the difference between the static friction coefficient and the dynamic friction coefficient. However, by setting μk/μs to the above range, it is possible to realize writing even after stopping writing for a while. Imagine writing (for example, you can change the direction of writing to the direction you want).

為了滿足0.30≦μk/μs≦0.58之關係，較佳滿足上述條件(B1)及(B2)，除上述條件(B1)及(B2)外，更佳滿足條件(B4)~(B7)之一項以上，進而較佳滿足上述條件(B1)、(B2)、(B4)~(B7)全部。 In order to satisfy the relationship of 0.30 ≦μk/μs ≦ 0.58, it is preferable to satisfy the above conditions (B1) and (B2), and it is better to satisfy one of the conditions (B4) to (B7) in addition to the above conditions (B1) and (B2). More preferably, the above conditions (B1), (B2), and (B4) to (B7) are satisfied.

又，為了使上述效果變得更良好，μk/μs更佳滿足0.30≦μk/μs≦0.44之關係。 Further, in order to make the above effects more favorable, μk/μs more preferably satisfies the relationship of 0.30 ≦ μk/μs ≦ 0.44.

μk/μs係設為對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs進行平均而獲得之值。 The μk/μs is a value obtained by measuring μk/μs of each sample for each of 20 samples and averaging μk/μs of 20 samples.

再者，即便於將觸控面板筆於以60度以外之角度(例如30~75度範圍之任意角度)接觸書寫面之狀態下進行固定時，亦較佳為μk /μs為上述範圍。又，即便於將掃描之速度設為14mm/秒以外之速度(例如0.1~100mm/秒範圍之任意速度)時，亦較佳為μk/μs為上述範圍。 Furthermore, even when the touch panel pen is fixed in a state of contacting the writing surface at an angle other than 60 degrees (for example, an arbitrary angle in the range of 30 to 75 degrees), it is preferably μk. /μs is the above range. Further, even when the scanning speed is set to a speed other than 14 mm/sec (for example, an arbitrary speed in the range of 0.1 to 100 mm/sec), it is preferable that μk/μs is in the above range.

又，就不會過度光滑而獲得適度之阻力感之觀點而言，μk及μs較佳為以下之範圍。μk較佳為0.06~0.30，更佳為0.08~0.28，進而較佳為0.08~0.20。μs較佳為0.15~0.95，更佳為0.20~0.60，進而較佳為0.25~0.50。 Further, from the viewpoint of not being excessively smooth and obtaining a moderate feeling of resistance, μk and μs are preferably in the following ranges. The μk is preferably from 0.06 to 0.30, more preferably from 0.08 to 0.28, still more preferably from 0.08 to 0.20. The μs is preferably from 0.15 to 0.95, more preferably from 0.20 to 0.60, still more preferably from 0.25 to 0.50.

μk及μs可利用與實施形態A中所說明之方法相同之方法進行測量。 Μk and μs can be measured by the same method as that described in the embodiment A.

又，「觸控面板筆之筆尖及軸之構造體之表觀楊氏模數E」、「筆尖之直徑D」及「筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度Pa」可利用與實施形態A中所說明之方法相同之方法進行測量。 Also, the arithmetic mean height Pa of the profile curve in the apparent Young's modulus E of the structure of the touch panel pen and the axis structure, the diameter D of the nib, and the unit measurement section (0.5 mm) of the nib The measurement can be carried out in the same manner as the method described in the embodiment A.

又，實施形態B之書寫片較佳於將依據JIS K7374：2007所測得之圖像解析度測量器之光頻梳之寬度為0.125mm、0.5mm、1.0mm及2.0mm之透過圖像清晰度設為C0.125、C0.5、C1.0及C2.0時，C0.125、C0.5、C1.0及C2.0之總和Cs為100%以上且未達250%，更佳為120%以上且230%以下，進而較佳為150%以上且200%以下。 Further, the writing sheet of the embodiment B is preferably such that the width of the optical frequency comb of the image resolution measuring device measured according to JIS K7374:2007 is 0.125 mm, 0.5 mm, 1.0 mm, and 2.0 mm. When the degree is C 0.125 , C 0.5 , C 1.0 and C 2.0 , the sum C s of C 0.125 , C 0.5 , C 1.0 and C 2.0 is 100% or more and less than 250%, more preferably 120% or more and 230%. Hereinafter, it is more preferably 150% or more and 200% or less.

藉由將Cs設為100%以上，而可藉由書寫片抑制顯示元件之解像度大幅降低。又，藉由將Cs設為未達250%，而用以賦予防眩性之手段不受限定，可容易地進行製品設計。 By setting C s to 100% or more, the resolution of the display element can be suppressed from being greatly reduced by the writing sheet. Further, by setting C s to less than 250%, the means for imparting anti-glare property is not limited, and the product design can be easily performed.

<書寫片整體之構成> <Structure of the whole writing sheet>

實施形態B之觸控面板筆用書寫片只要至少一表面滿足條件(B1)及(B2)，則其構成並無特別限定。 In the touch panel pen for writing of the embodiment B, the configuration is not particularly limited as long as at least one surface satisfies the conditions (B1) and (B2).

例如作為實施形態B之觸控面板筆用書寫片10之構成，可列舉：如圖1及圖2般具有樹脂層2，且該樹脂層2之一表面滿足條件(B1)及(B2)者。 For example, the configuration of the touch panel pen writing sheet 10 of the embodiment B includes a resin layer 2 as shown in FIGS. 1 and 2, and one surface of the resin layer 2 satisfies the conditions (B1) and (B2). .

再者，雖未圖示，但亦可具有樹脂層或塑膠膜以外之其他層，且該其他層之表面滿足條件(B1)及(B2)。作為其他層，可列舉：抗靜電層、防污層等。又，雖未圖示，但樹脂層亦可由2層以上構成。 Further, although not shown, other layers than the resin layer or the plastic film may be provided, and the surfaces of the other layers satisfy the conditions (B1) and (B2). Examples of the other layer include an antistatic layer, an antifouling layer, and the like. Further, although not shown, the resin layer may be composed of two or more layers.

滿足條件(B1)及(B2)之表面(書寫面)可藉由(a)壓紋、噴砂、蝕刻等物理或化學處理、(b)利用模具之成型、(c)塗佈等而形成。該等方法中，就表面形狀之再現性之觀點而言，較佳為(b)之利用模具之成型，就生產性及對應多品種之觀點而言，較佳為(c)之塗佈。 The surface (writing surface) satisfying the conditions (B1) and (B2) can be formed by (a) physical or chemical treatment such as embossing, sand blasting, etching, (b) molding by a mold, (c) coating, or the like. Among these methods, from the viewpoint of the reproducibility of the surface shape, it is preferable that the molding of the mold (b) is carried out, and the coating of (c) is preferable from the viewpoint of productivity and a plurality of types.

利用模具之成型可藉由製作由與滿足條件(B1)及(B2)之形狀互補之形狀所構成之模具，使形成樹脂層之材料流入至該模具中，然後自模具取出而形成。此處，若使用構成樹脂層之材料作為該材料，使該材料流入至模具中後重疊塑膠膜，並將樹脂層連同塑膠膜一起自模具取出，則可獲得於塑膠膜上具有樹脂層，且該樹脂層之表面滿足條件(B1)及(B2)之觸控面板筆用書寫片。又，不使用塑膠膜而直接自模具取出樹脂層，或者使用塑膠膜自模具取出樹脂層後剝離塑膠膜，藉此可獲得由樹脂層單層所構成，且該樹脂層之表面滿足條件(B1)及(B2)之觸控面板筆用書寫片。 By molding the mold, a material formed of a shape complementary to the shape satisfying the conditions (B1) and (B2) can be formed, and a material forming the resin layer can be poured into the mold and then taken out from the mold. Here, if a material constituting the resin layer is used as the material, the material is poured into the mold, the plastic film is superposed, and the resin layer is taken out from the mold together with the plastic film, and a resin layer is obtained on the plastic film, and The surface of the resin layer satisfies the writing sheet for a touch panel pen of the conditions (B1) and (B2). Further, the resin layer is directly taken out from the mold without using a plastic film, or the plastic film is taken out from the mold and the plastic film is peeled off, whereby a single layer of the resin layer can be obtained, and the surface of the resin layer satisfies the condition (B1) And (B2) the touch panel pen for writing.

於使用硬化性樹脂組成物(熱硬化性樹脂組成物或游離輻射硬化性樹脂組成物)作為流入至模具中之材料之情形時，較佳於自模具取出前使硬化性樹脂組成物硬化。 When a curable resin composition (thermosetting resin composition or free radiation curable resin composition) is used as the material flowing into the mold, it is preferred to cure the curable resin composition before taking out from the mold.

關於利用塗佈之樹脂層之形成，可藉由將含有樹脂成分、粒子及溶劑而成之樹脂層形成塗佈液利用凹版塗佈、棒式塗佈等公知之塗佈方法塗佈於塑膠膜上，並進行乾燥、硬化而形成。為了使藉由塗佈而形成之樹脂層之表面形狀滿足上述條件，較佳併用微米級之粒子及奈米級之無機超微粒子作為粒子，且將膜厚、粒子之含量及粒子之平均粒徑設為下述之範圍。 The resin layer forming coating liquid containing the resin component, the particles, and the solvent can be applied to the plastic film by a known coating method such as gravure coating or bar coating. It is formed by drying and hardening. In order to satisfy the above conditions for the surface shape of the resin layer formed by coating, it is preferred to use micron-sized particles and nano-sized inorganic ultrafine particles as particles, and to increase the film thickness, the content of the particles, and the average particle diameter of the particles. Set to the following range.

樹脂層之膜厚較佳為1.5~10μm，更佳為2~8μm，進而較佳為4~7μm。樹脂層之膜厚例如可根據使用穿透式電子顯微鏡(TEM)或掃描穿透式電子顯微鏡(STEM)所拍攝到之剖面之圖像測量20處之厚度，並根據20處之值之平均值而算出。TEM或STEM之加速電壓較佳設為10~30kV，倍率較佳設為5萬~30萬倍。 The film thickness of the resin layer is preferably from 1.5 to 10 μm, more preferably from 2 to 8 μm, still more preferably from 4 to 7 μm. The film thickness of the resin layer can be measured, for example, at a thickness of 20 points according to an image of a cross section taken using a transmission electron microscope (TEM) or a scanning transmission electron microscope (STEM), and is based on an average value of 20 points. And calculate. The acceleration voltage of the TEM or STEM is preferably set to 10 to 30 kV, and the magnification is preferably set to 50,000 to 300,000 times.

樹脂層之粒子(微米級粒子)可使用有機粒子及無機粒子中之任一者。作為有機粒子，可列舉：由聚甲基丙烯酸甲酯、聚丙烯酸-苯乙烯共聚物、三聚氰胺樹脂、聚碳酸酯、聚苯乙烯、聚氯乙烯、苯胍胺-三聚氰胺-甲醛縮合物、聚矽氧、氟系樹脂及聚酯系樹脂等所構成之粒子。作為無機粒子，可列舉：由二氧化矽、氧化鋁、銻、氧化鋯及二氧化鈦等所構成之粒子。該等粒子中，就分散控制之容易性的觀點而言，較佳為有機粒子。 Any of the organic particles and the inorganic particles can be used as the particles (micron particles) of the resin layer. Examples of the organic particles include polymethyl methacrylate, polyacrylic acid-styrene copolymer, melamine resin, polycarbonate, polystyrene, polyvinyl chloride, benzoguanamine-melamine-formaldehyde condensate, and polyfluorene. Particles composed of oxygen, a fluorine resin, a polyester resin, or the like. Examples of the inorganic particles include particles composed of ceria, alumina, cerium, zirconia, and titania. Among these particles, organic particles are preferred from the viewpoint of easiness of dispersion control.

樹脂層中之粒子(微米級粒子)之含量較佳為形成樹脂層之全部固形物成分中之2~25質量%，更佳為5~20質量%，進而較佳為10~15質量%。 The content of the particles (micron-sized particles) in the resin layer is preferably from 2 to 25% by mass, more preferably from 5 to 20% by mass, even more preferably from 10 to 15% by mass, based on the total solid content of the resin layer.

樹脂層中之粒子(微米級粒子)之平均粒徑較佳為0.2~8.0μm，更佳為0.3~7.0μm，進而較佳為0.5~5.0μm。於粒子凝集之情形 時，較佳為凝集粒子之平均粒徑滿足上述範圍。粒子之平均粒徑可利用與實施形態A相同之方法算出。 The average particle diameter of the particles (micron-sized particles) in the resin layer is preferably 0.2 to 8.0 μm, more preferably 0.3 to 7.0 μm, still more preferably 0.5 to 5.0 μm. In the case of particle agglutination Preferably, the average particle diameter of the aggregated particles satisfies the above range. The average particle diameter of the particles can be calculated by the same method as in the embodiment A.

就容易使書寫片之表面形狀為上述範圍之觀點而言，樹脂層之膜厚較佳為大於粒子之平均粒徑。具體而言，較佳為[粒子之平均粒徑]/[樹脂層之膜厚]之比為0.40~0.80，更佳為0.45~0.75，進而較佳為0.50~0.70。 The film thickness of the resin layer is preferably larger than the average particle diameter of the particles from the viewpoint that the surface shape of the writing sheet is easily in the above range. Specifically, the ratio of [average particle diameter of particles] / [film thickness of resin layer] is preferably 0.40 to 0.80, more preferably 0.45 to 0.75, still more preferably 0.50 to 0.70.

又，作為粒子，較佳為不僅含有如上述之微米級粒子，亦含有奈米級之無機超微粒子。藉由含有奈米級之無機超微粒子，可容易使樹脂層之表面形狀為上述範圍。認為其原因在於：藉由微米級之粒子而形成高頻成分之凹凸(微小區域之凹凸)，另一方面，於含有無機超微粒子之情形時，於微米級粒子不存在之處亦形成較平緩之傾斜，而形成低頻成分之凹凸(較大區域之凹凸)，結果形成高頻成分之凹凸與低頻成分之凹凸混合存在之形狀。於含有無機超微粒子之情形時，塗佈液之觸變性及溶劑之乾燥特性受到影響，而不會產生如通常之整平，因此產生如上述之現象。 Further, as the particles, it is preferred to contain not only the above-described micron-sized particles but also nano-sized inorganic ultrafine particles. By containing nano-sized inorganic ultrafine particles, the surface shape of the resin layer can be easily made into the above range. The reason for this is that the irregularities of the high-frequency component (the irregularities of the minute regions) are formed by the micron-sized particles, and on the other hand, when the inorganic ultrafine particles are contained, the micron-sized particles are formed in a relatively gentle manner. When it is inclined, the unevenness of the low-frequency component (concavity and convexity of a large area) is formed, and as a result, a shape in which the unevenness of the high-frequency component and the unevenness of the low-frequency component are mixed are formed. In the case of containing inorganic ultrafine particles, the thixotropic properties of the coating liquid and the drying characteristics of the solvent are affected without causing normal leveling, thus causing the phenomenon as described above.

又，藉由含有無機超微粒子，而於微米級粒子不存在之處亦形成較平緩之傾斜，結果(大致平滑之部位減少之結果)可使防眩性亦變得良好。 Further, by containing the inorganic ultrafine particles, a gentle slope is formed in the absence of the micron-sized particles, and as a result (the result of a substantially smooth portion is reduced), the antiglare property can be improved.

作為無機超微粒子，可列舉：由二氧化矽、氧化鋁、氧化鋯及二氧化鈦等所構成之超微粒子。該等中，就透明性之觀點而言，較佳為二氧化矽超微粒子。 Examples of the inorganic ultrafine particles include ultrafine particles composed of ceria, alumina, zirconia, and titania. Among these, from the viewpoint of transparency, cerium oxide ultrafine particles are preferred.

就容易獲得上述凹凸形狀之觀點而言，無機超微粒子較佳為平均一次粒徑為1~25nm，更佳為5~20nm。 The inorganic ultrafine particles preferably have an average primary particle diameter of from 1 to 25 nm, more preferably from 5 to 20 nm, from the viewpoint of easily obtaining the above-mentioned uneven shape.

無機超微粒子較佳為藉由表面處理而導入有反應性基之反 應性無機超微粒子。藉由導入反應性基，而可於樹脂層中含有大量之無機超微粒子，而可容易使書寫片之表面形狀為上述範圍。 The inorganic ultrafine particles are preferably introduced by a surface treatment with a reactive group Inorganic inorganic ultrafine particles. By introducing a reactive group, a large amount of inorganic ultrafine particles can be contained in the resin layer, and the surface shape of the writing sheet can be easily made into the above range.

作為反應性基，可較佳地使用聚合性不飽和基，較佳為光硬化性不飽和基，尤佳為游離輻射硬化性不飽和基。作為其具體例，可列舉：(甲基)丙烯醯基、(甲基)丙烯醯氧基、乙烯基及烯丙基等乙烯性不飽和鍵以及環氧基等。 As the reactive group, a polymerizable unsaturated group can be preferably used, preferably a photocurable unsaturated group, and particularly preferably an free radiation curable unsaturated group. Specific examples thereof include an ethylenically unsaturated bond such as a (meth)acrylonitrile group, a (meth)acryloxy group, a vinyl group, and an allyl group, and an epoxy group.

此種反應性無機超微粒子可列舉經矽烷偶合劑表面處理之無機超微粒子。利用矽烷偶合劑對無機超微粒子之表面進行處理時，可列舉：將矽烷偶合劑向無機超微粒子進行噴射之乾式法；或使無機超微粒子分散於溶劑中後添加矽烷偶合劑而使之反應之濕式法等。 Examples of such reactive inorganic ultrafine particles include inorganic ultrafine particles surface-treated with a decane coupling agent. When the surface of the inorganic ultrafine particles is treated with a decane coupling agent, a dry method in which a decane coupling agent is sprayed onto the inorganic ultrafine particles is used, or the inorganic ultrafine particles are dispersed in a solvent, and then a decane coupling agent is added to cause a reaction. Wet method, etc.

無機超微粒子之含量較佳為形成樹脂層之全部固形物成分中之1~20質量%，更佳為2~15質量%，進而較佳為3~10質量%。藉由設為該範圍，可利用整平性之控制，及樹脂層之聚合收縮之抑制而容易使書寫片之表面形狀為上述範圍。 The content of the inorganic ultrafine particles is preferably from 1 to 20% by mass, more preferably from 2 to 15% by mass, even more preferably from 3 to 10% by mass, based on the total solid content of the resin layer. By setting it as this range, it is easy to make the surface shape of a writing sheet into the said range by the control of a leveling property, and suppression of the polymerization shrinkage of a resin layer.

又，關於樹脂層中之微米級粒子及無機超微粒子之含量之比(微米級粒子之含量/無機超微粒子之含量)，就容易使書寫片之表面形狀為上述範圍之觀點而言，較佳為1.0~3.0，更佳為1.5~2.5。 Further, the ratio of the content of the micron-sized particles and the inorganic ultrafine particles in the resin layer (the content of the micron-sized particles/the content of the inorganic ultrafine particles) is preferably from the viewpoint that the surface shape of the writing sheet is in the above range. It is 1.0~3.0, more preferably 1.5~2.5.

樹脂層之樹脂成分較佳包含熱硬化性樹脂組成物或游離輻射硬化性樹脂組成物之硬化物，就使機械強度變得更良好之觀點而言，更佳包含游離輻射硬化性樹脂組成物之硬化物，其中，進而較佳包含紫外線硬化性樹脂組成物之硬化物。 The resin component of the resin layer preferably contains a cured product of a thermosetting resin composition or a free radiation curable resin composition, and more preferably contains a free radiation curable resin composition from the viewpoint of improving mechanical strength. The cured product further preferably contains a cured product of the ultraviolet curable resin composition.

熱硬化性樹脂組成物係至少包含熱硬化性樹脂之組成物，且 係藉由加熱而硬化之樹脂組成物。 The thermosetting resin composition contains at least a composition of a thermosetting resin, and A resin composition which is hardened by heating.

作為熱硬化性樹脂，可列舉：丙烯酸系樹脂、胺基甲酸酯樹脂、酚系樹脂、脲三聚氰胺樹脂、環氧樹脂、不飽和聚酯樹脂、矽酮樹脂等。於熱硬化性樹脂組成物中，視需要向該等硬化性樹脂添加硬化劑。 Examples of the thermosetting resin include an acrylic resin, a urethane resin, a phenol resin, a urea melamine resin, an epoxy resin, an unsaturated polyester resin, and an anthrone resin. In the thermosetting resin composition, a curing agent is added to the curable resins as needed.

游離輻射硬化性樹脂組成物係包含具有游離輻射硬化性官能基之化合物(以下，亦稱為「游離輻射硬化性化合物」)之組成物。作為游離輻射硬化性官能基，可列舉：(甲基)丙烯醯基、乙烯基、烯丙基等乙烯性不飽和鍵結基及環氧基、氧雜環丁基等。作為游離輻射硬化性化合物，較佳為具有乙烯性不飽和鍵結基之化合物，更佳為具有2個以上之乙烯性不飽和鍵結基之化合物，其中，進而較佳為具有2個以上之乙烯性不飽和鍵結基之多官能性(甲基)丙烯酸酯系化合物。作為多官能性(甲基)丙烯酸酯系化合物，單體及低聚物均可使用。 The composition of the radiation curable resin is a composition of a compound having an epitaxial radiation-curable functional group (hereinafter also referred to as "free radiation curable compound"). Examples of the radical radiation-curable functional group include an ethylenically unsaturated bonding group such as a (meth)acryl fluorenyl group, a vinyl group, and an allyl group, and an epoxy group or an oxetanyl group. The free radiation curable compound is preferably a compound having an ethylenically unsaturated bond group, more preferably a compound having two or more ethylenically unsaturated bond groups, and more preferably two or more. A polyfunctional (meth) acrylate compound having an ethylenically unsaturated bonding group. As the polyfunctional (meth) acrylate type compound, both a monomer and an oligomer can be used.

再者，所謂游離輻射，意指電磁波或帶電粒子束中具有可使分子聚合或交聯之能量量子者，通常可使用紫外線(UV)或電子束(EB)，此外，亦可使用X射線、γ射線等電磁波；α射線、離子束等帶電粒子束。 In addition, the term "free radiation" means an electromagnetic wave or a charged quantum beam having an energy quantum capable of polymerizing or crosslinking a molecule, and generally, ultraviolet (UV) or electron beam (EB) may be used, and X-rays may also be used. Electromagnetic waves such as gamma rays; charged particle beams such as alpha rays and ion beams.

多官能性(甲基)丙烯酸酯系化合物中，作為雙官能(甲基)丙烯酸酯系單體，可列舉：乙二醇二(甲基)丙烯酸酯、雙酚A四乙氧基二丙烯酸酯、雙酚A四丙氧基二丙烯酸酯、1,6-己二醇二丙烯酸酯等。 Among the polyfunctional (meth)acrylate compounds, examples of the difunctional (meth)acrylate monomer include ethylene glycol di(meth)acrylate and bisphenol A tetraethoxy diacrylate. , bisphenol A tetrapropoxy diacrylate, 1,6-hexanediol diacrylate, and the like.

作為3官能以上之(甲基)丙烯酸酯系單體，例如可列舉：三羥甲基丙烷三(甲基)丙烯酸酯、新戊四醇三(甲基)丙烯酸酯、新戊四醇四(甲基)丙烯酸酯、二新戊四醇六(甲基)丙烯酸酯、二新戊四醇四(甲基)丙烯酸酯、異三聚氰酸改質三(甲基)丙烯酸酯等。 Examples of the trifunctional or higher (meth)acrylate monomer include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, and pentaerythritol IV ( Methyl) acrylate, dipentaerythritol hexa(meth) acrylate, dipentaerythritol tetra(meth) acrylate, iso-cyanuric acid modified tri(meth) acrylate, and the like.

又，上述(甲基)丙烯酸酯系單體亦可為將分子骨架之一部分改質者，亦可使用經環氧乙烷、環氧丙烷、己內酯、異三聚氰酸、烷基、環狀烷基、芳香族、雙酚等改質而成者。 Further, the (meth) acrylate monomer may be one in which a part of the molecular skeleton is modified, and ethylene oxide, propylene oxide, caprolactone, iso-cyanuric acid, or an alkyl group may be used. It is a modified one of a cyclic alkyl group, an aromatic group, and a bisphenol.

又，作為多官能性(甲基)丙烯酸酯系低聚物，可列舉：胺酯(甲基)丙烯酸酯、環氧(甲基)丙烯酸酯、聚酯(甲基)丙烯酸酯、聚醚(甲基)丙烯酸酯等丙烯酸酯系聚合物等。 Moreover, examples of the polyfunctional (meth)acrylate-based oligomer include an amine ester (meth)acrylate, an epoxy (meth)acrylate, a polyester (meth)acrylate, and a polyether ( An acrylate polymer such as a methyl acrylate.

胺酯(甲基)丙烯酸酯例如可藉由多元醇及有機二異氰酸酯與羥基(甲基)丙烯酸酯之反應而獲得。 The amine ester (meth) acrylate can be obtained, for example, by a reaction of a polyol and an organic diisocyanate with a hydroxy (meth) acrylate.

又，較佳之環氧(甲基)丙烯酸酯係使3官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與多元酸及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；及使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與酚類及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯。 Further, a preferred epoxy (meth) acrylate is obtained by reacting a trifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with (meth)acrylic acid. (meth) acrylate; a (meth) acrylate obtained by reacting a difunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with a polybasic acid and (meth)acrylic acid; And a (meth) acrylate obtained by reacting a bifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, or an aliphatic epoxy resin with a phenol or a (meth)acrylic acid.

上述游離輻射硬化性化合物可單獨使用1種，或組合2種以上使用。 The above-mentioned free radiation curable compounds may be used alone or in combination of two or more.

於游離輻射硬化性化合物為紫外線硬化性化合物之情形時，游離輻射硬化性組成物較佳包含光聚合起始劑或光聚合促進劑等添加劑。 When the free radiation curable compound is an ultraviolet curable compound, the free radiation curable composition preferably contains an additive such as a photopolymerization initiator or a photopolymerization accelerator.

作為光聚合起始劑，可列舉：選自苯乙酮、二苯甲酮、α-羥基烷基苯酮、米其勒酮、安息香、苯偶醯二甲基縮酮、苯甲醯基苯甲酸酯、α-醯基肟酯、9-氧硫類等中之1種以上。 The photopolymerization initiator may be selected from the group consisting of acetophenone, benzophenone, α-hydroxyalkylphenone, mischrone, benzoin, benzoin dimethyl ketal, benzhydrazine benzene. Formate, α-mercaptodecyl ester, 9-oxosulfur One or more of the classes.

該等光聚合起始劑較佳為熔點為100℃以上。藉由將光聚合起始劑之熔 點設為100℃以上，而於書寫片之製造過程、或觸控面板之透明導電膜之形成過程中所殘留之光聚合起始劑昇華，而可防止製造裝置或透明導電膜之污染。 The photopolymerization initiator preferably has a melting point of 100 ° C or higher. By melting the photopolymerization initiator When the dot is set to 100 ° C or more, the photopolymerization initiator remaining in the process of forming the writing sheet or the transparent conductive film of the touch panel is sublimated, and contamination of the manufacturing apparatus or the transparent conductive film can be prevented.

又，光聚合促進劑係可減輕硬化時之由空氣引起之聚合抑制而使硬化速度加快者，例如可列舉：選自對二甲胺基苯基苯甲酸異戊酯、對二甲胺基苯甲酸乙酯等中之1種以上。 Further, the photopolymerization accelerator can reduce the polymerization inhibition by air at the time of curing and accelerate the curing rate, and examples thereof include, for example, isoamyl p-dimethylaminophenylbenzoate and p-dimethylaminobenzene. One or more of ethyl formate and the like.

於樹脂層形成塗佈液中，通常為了調節黏度、或可使各成分溶解或分散而使用溶劑。根據溶劑之種類，在塗佈、乾燥過程後之樹脂層之表面狀態不同，因此較佳為考慮溶劑之飽和蒸氣壓、溶劑向透明基材之滲透性等而選定溶劑。具體而言，溶劑例如可例示：酮類(丙酮、甲基乙基酮、甲基異丁基酮、環己酮等)、醚類(二烷、四氫呋喃等)、脂肪族烴類(己烷等)、脂環式烴類(環己烷等)、芳香族烴類(甲苯、二甲苯等)、鹵化碳類(二氯甲烷、二氯乙烷等)、酯類(乙酸甲酯、乙酸乙酯、乙酸丁酯等)、醇類(丁醇、環己醇等)、溶纖劑類(甲基溶纖劑、乙基溶纖劑等)、乙酸溶纖劑類、亞碸類(二甲基亞碸等)、醯胺類(二甲基甲醯胺、二甲基乙醯胺等)等，亦可為該等之混合物。 In the resin layer forming coating liquid, a solvent is usually used in order to adjust the viscosity or to dissolve or disperse each component. Depending on the type of the solvent, the surface state of the resin layer after the coating and drying process is different. Therefore, it is preferred to select a solvent in consideration of the saturated vapor pressure of the solvent, the permeability of the solvent to the transparent substrate, and the like. Specifically, examples of the solvent include ketones (acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.) and ethers (two). Alkane, tetrahydrofuran, etc., aliphatic hydrocarbons (such as hexane), alicyclic hydrocarbons (such as cyclohexane), aromatic hydrocarbons (such as toluene and xylene), and halogenated carbons (dichloromethane and dichloroethylene) Ethane, etc., esters (methyl acetate, ethyl acetate, butyl acetate, etc.), alcohols (butanol, cyclohexanol, etc.), cellosolve (methyl cellosolve, ethyl cellosolve) And so on, cellulose cellosolve, sulfonium (dimethyl hydrazine, etc.), guanamine (dimethylformamide, dimethylacetamide, etc.), etc., may also be a mixture of these.

於溶劑之乾燥過慢之情形時，樹脂層之整平性會變得過度，因此變得難以形成上述之表面形狀。因此，作為溶劑，較佳包含全部溶劑中之50質量%以上之蒸發速度(將乙酸正丁酯之蒸發速度設為100時之相對蒸發速度)為180以上之溶劑，更佳包含60質量%以上。作為相對蒸發速度為180以上之溶劑，可列舉：甲苯。甲苯之相對蒸發速度為195。 When the drying of the solvent is too slow, the leveling property of the resin layer may become excessive, and thus it becomes difficult to form the above-described surface shape. Therefore, the solvent preferably contains a solvent having a vaporization rate of 50% by mass or more in all the solvents (relative evaporation rate when the evaporation rate of n-butyl acetate is 100), and more preferably 60% by mass or more. . The solvent having a relative evaporation rate of 180 or more is, for example, toluene. The relative evaporation rate of toluene was 195.

又，就使表面形狀適度平滑，而容易使書寫片之表面形狀為 上述範圍之觀點而言，較佳於樹脂層形成塗佈液中含有整平劑。整平劑可列舉：氟系整平劑、聚矽氧系整平劑、氟聚矽氧共聚物系整平劑等，較佳為聚矽氧系整平劑。作為整平劑之添加量，相對於樹脂層形成塗佈液之全部固形物成分，較佳為0.01~0.5重量%，更佳為0.01~0.2重量%。 Moreover, the surface shape is moderately smooth, and the surface shape of the writing piece is easily made From the viewpoint of the above range, it is preferred to contain a leveling agent in the coating layer forming coating liquid. The leveling agent may, for example, be a fluorine-based leveling agent, a polyfluorene-based leveling agent, a fluoropolyoxy-oxygen copolymer-based leveling agent, or the like, and is preferably a polyfluorene-based leveling agent. The amount of the leveling agent to be added is preferably 0.01 to 0.5% by weight, and more preferably 0.01 to 0.2% by weight based on the total solid content of the coating layer of the resin layer.

塑膠膜可由聚酯、三乙醯纖維素(TAC)、二乙酸纖維素、乙酸丁酸纖維素、聚醯胺、聚醯亞胺、聚醚碸、聚碸、聚丙烯、聚甲基戊烯、聚氯乙烯、聚乙烯醇縮醛、聚醚酮、聚甲基丙烯酸甲酯、聚碳酸酯、聚碳酸酯及非晶質烯烴(Cyclo-Olefin-Polymer：COP)等樹脂形成。 The plastic film can be made of polyester, triacetyl cellulose (TAC), cellulose diacetate, cellulose acetate butyrate, polyamide, polyimine, polyether oxime, polyfluorene, polypropylene, polymethylpentene. It is formed of a resin such as polyvinyl chloride, polyvinyl acetal, polyether ketone, polymethyl methacrylate, polycarbonate, polycarbonate, and amorphous olefin (Cyclo-Olefin-Polymer: COP).

該等塑膠膜中，就機械強度或尺寸穩定性之觀點而言，較佳為經延伸加工、尤其是雙軸延伸加工之聚酯(聚對苯二甲酸乙二酯、聚萘二甲酸乙二酯)。 In the plastic film, from the viewpoint of mechanical strength or dimensional stability, polyester (polyethylene terephthalate or polyethylene naphthalate) which is subjected to elongation processing, especially biaxial stretching processing, is preferred. ester).

塑膠膜之厚度較佳為5~200μm，更佳為10~150μm。 The thickness of the plastic film is preferably from 5 to 200 μm, more preferably from 10 to 150 μm.

實施形態B之書寫片藉由用作自上述式(i)導出之X超過500MN/m之觸控面板筆(觸控面板筆(B))用書寫片，而可使書寫感變良好。 The writing sheet of the embodiment B can be made to have a good writing feeling by using a writing sheet for a touch panel pen (touch panel pen (B)) having an X of more than 500 MN/m derived from the above formula (i).

於使用實施形態B之書寫片作為自上述式(i)導出之X為1,000MN/m以上之觸控面板筆用書寫片之情形時，可使書寫感變得更良好，於用作自上述式(i)導出之X為2,000MN/m以上且100,000MN/m以下之觸控面板筆用書寫片之情形時，可使書寫感進一步變良好。 When the writing sheet of the embodiment B is used as the writing sheet for the touch panel pen having a length of 1,000 MN/m or more derived from the above formula (i), the writing feeling can be further improved, and the writing can be used as described above. When the X derived from the formula (i) is a sheet for a touch panel pen of 2,000 MN/m or more and 100,000 MN/m or less, the writing feeling can be further improved.

觸控面板筆(B)之楊氏模數E、直徑D及算術平均高度Pa之各值只要滿足上述式(i)，則無特別限定，但較佳為大致以下之範圍。 The respective values of the Young's modulus E, the diameter D, and the arithmetic mean height Pa of the touch panel pen (B) are not particularly limited as long as they satisfy the above formula (i), but are preferably substantially in the following range.

楊氏模數較佳為0.1~5.0GPa(1.0×108~5.0×109N/m2)，更佳為0.5~ 2.5GPa(5.0×108~2.5×109N/m2)。直徑D較佳為0.3~6.0mm，更佳為0.4~2.5mm。算術平均高度Pa較佳為0.01~10μm，更佳為0.05~1.0μm。 The Young's modulus is preferably 0.1 to 5.0 GPa (1.0 × 10 8 to 5.0 × 10 9 N/m 2 ), more preferably 0.5 to 2.5 GPa (5.0 × 10 8 to 2.5 × 10 9 N/m 2 ). The diameter D is preferably from 0.3 to 6.0 mm, more preferably from 0.4 to 2.5 mm. The arithmetic mean height Pa is preferably from 0.01 to 10 μm, more preferably from 0.05 to 1.0 μm.

又，觸控面板筆(B)之筆尖之曲率半徑並無特別限定，於曲率半徑為0.3~1.5mm之情形時，更容易發揮效果，於曲率半徑為0.5~0.8mm之情形時，容易進一步發揮效果。 Further, the radius of curvature of the tip of the touch panel pen (B) is not particularly limited, and when the radius of curvature is 0.3 to 1.5 mm, it is easier to exert an effect, and when the radius of curvature is 0.5 to 0.8 mm, it is easy to further Play the effect.

[觸控面板] [Touch Panel]

實施形態B之觸控面板係表面具有片之觸控面板，以作為該片之實施形態B之觸控面板筆用書寫片滿足條件(B1)及(B2)之側的面配置成朝向觸控面板之表面而成。 The touch panel of the embodiment B has a touch panel on the surface of the touch panel, and the surface of the touch panel pen writing sheet of the embodiment B that satisfies the conditions (B1) and (B2) is configured to face the touch. The surface of the panel is made.

作為觸控面板，可列舉：電阻膜式觸控面板、靜電電容式觸控面板、內嵌式觸控面板、光學式觸控面板、超音波式觸控面板及電磁感應式觸控面板等。 As the touch panel, a resistive touch panel, a capacitive touch panel, an in-cell touch panel, an optical touch panel, an ultrasonic touch panel, and an electromagnetic induction touch panel are exemplified.

電阻膜式觸控面板100係如圖3所示般，將以使具有導電膜30之上下一對透明基板20之導電膜30彼此對向之方式隔著間隔片40進行配置而成之構成設為基本構成，並將未圖示之電路連接於該基本構成而成者。 As shown in FIG. 3, the resistive touch panel 100 is configured such that the conductive film 30 having the pair of transparent substrates 20 on the conductive film 30 is placed opposite to each other with the spacer 40 interposed therebetween. In order to have a basic configuration, a circuit (not shown) is connected to the basic configuration.

於電阻膜式觸控面板之情形時，例如可列舉如下構成：使用實施形態B之書寫片10作為上部透明基板20，且以該書寫片10之滿足條件(B1)及(B2)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但電阻膜式觸控面板亦可為如下構成：於上部透明基板上將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式貼合；或者於上部透明基板上將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面 朝向表面之方式進行載置，並利用框架等固定。 In the case of the resistive touch panel, for example, the writing sheet 10 of the embodiment B is used as the upper transparent substrate 20, and the writing sheets 10 satisfy the conditions (B1) and (B2). The surface is used in such a manner as to face the surface of the touch panel 100. Further, although not shown, the resistive touch panel may have a configuration in which the writing piece of the embodiment B is placed on the upper transparent substrate so that the surface on the side of the conditions (B1) and (B2) faces the surface. Bonding; or forming the writing piece of the embodiment B on the upper transparent substrate to satisfy the side of the condition (B1) and (B2) The surface is placed on the surface and fixed by a frame or the like.

靜電電容式觸控面板可列舉表面型及投影型等，大多使用投影型。投影型之靜電電容式觸控面板係將電路連接於基本構成而成者，該基本構成係將X軸電極，及與該X軸電極正交之Y軸電極隔著絕緣體進行配置而成。若更具體地說明該基本構成，則可列舉：於1片透明基板上之不同面形成X軸電極及Y軸電極之態樣；於透明基板上依序形成X軸電極、絕緣體層、Y軸電極之態樣；如圖4所示般於透明基板20上形成X軸電極50，於另一透明基板20上形成Y軸電極60，經由接著劑層等絕緣體層70進行積層之態樣等。又，可列舉於該等基本態樣中進而積層另一透明基板之態樣。 The capacitive touch panel is exemplified by a surface type and a projection type, and a projection type is often used. A projection type capacitive touch panel is obtained by connecting a circuit to a basic configuration in which an X-axis electrode and a Y-axis electrode orthogonal to the X-axis electrode are disposed via an insulator. More specifically, the basic configuration is such that an X-axis electrode and a Y-axis electrode are formed on different surfaces of one transparent substrate, and an X-axis electrode, an insulator layer, and a Y-axis are sequentially formed on the transparent substrate. As shown in FIG. 4, the X-axis electrode 50 is formed on the transparent substrate 20, the Y-axis electrode 60 is formed on the other transparent substrate 20, and the layer is laminated via the insulator layer 70 such as an adhesive layer. Moreover, the aspect in which another transparent substrate is laminated in these basic aspects is mentioned.

於靜電電容式觸控面板之情形時，例如可列舉如下構成：使用實施形態B之書寫片10作為表面側之透明基板20，且以該書寫片10之滿足條件(B1)及(B2)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但靜電電容式觸控面板亦可為如下構成：於表面側之透明基板上將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式貼合；或者於表面側之透明基板上將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the capacitive touch panel, for example, the writing sheet 10 of the embodiment B is used as the transparent substrate 20 on the front side, and the conditions (B1) and (B2) of the writing sheet 10 are satisfied. The side faces are used toward the surface of the touch panel 100. Further, although not shown, the capacitive touch panel may be configured such that the writing sheet of the embodiment B satisfies the surface on the side of the conditions (B1) and (B2) on the transparent substrate on the front side. Alternatively, the writing piece of the embodiment B may be placed on the transparent substrate on the front side so that the surface on the side of the conditions (B1) and (B2) faces the surface, and is fixed by a frame or the like.

電磁感應式觸控面板係使用產生磁場之專用筆之觸控面板。電磁感應式觸控面板至少具有檢測自筆產生之電磁能量之感測器部，進而於感測器部上具有透明基板。該透明基板亦可為多層構成。 The electromagnetic induction type touch panel is a touch panel using a special pen that generates a magnetic field. The electromagnetic induction type touch panel has at least a sensor portion for detecting electromagnetic energy generated from a pen, and further has a transparent substrate on the sensor portion. The transparent substrate may also be composed of a plurality of layers.

於電磁感應式觸控面板之情形時，例如可列舉如下構成：使用實施形態B之書寫片作為位於感測器部上之透明基板中最表面之透明基板，且以 該書寫片之滿足條件(B1)及(B2)之側的面朝向觸控面板之表面的方式使用。或者，於電磁感應式觸控面板之情形時，亦可為如下構成：於位於感測器部上之透明基板中最表面之透明基板上，將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式貼合；或者於該最表面之透明基板上，將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the electromagnetic induction type touch panel, for example, a configuration in which the writing sheet of the embodiment B is used as the outermost surface of the transparent substrate on the sensor portion is used, and The surface of the writing sheet that satisfies the conditions (B1) and (B2) faces the surface of the touch panel. Alternatively, in the case of the electromagnetic induction type touch panel, the writing piece of the embodiment B may be satisfied on the transparent substrate on the outermost surface of the transparent substrate located on the sensor portion (B1). And the surface on the side of (B2) is attached to the surface; or on the transparent substrate of the outermost surface, the surface of the writing sheet of Embodiment B is set to face the surface on the side of the conditions (B1) and (B2). It is placed and fixed by a frame or the like.

內嵌式觸控面板係於在2片玻璃基板間夾持液晶而成之液晶元件之內部嵌入有電阻膜式、靜電電容式、光學式等觸控面板功能者。 The in-cell touch panel is in which a touch panel function such as a resistive film type, a capacitive type, or an optical type is embedded in a liquid crystal element in which a liquid crystal is sandwiched between two glass substrates.

於內嵌式觸控面板之情形時，例如可列舉如下構成：向表面側之玻璃基板將實施形態B之書寫片以滿足條件(B1)及(B2)之側的面朝向表面之方式進行貼合而使用。再者，亦可於表面側之玻璃基板與實施形態B之書寫片之間具有偏光板等其他層。 In the case of the in-cell type touch panel, for example, a configuration is given in which the writing sheet of the embodiment B is attached to the glass substrate of the embodiment B so that the surface on the side of the conditions (B1) and (B2) faces the surface. Used together. Further, another layer such as a polarizing plate may be provided between the glass substrate on the front side and the writing sheet in the embodiment B.

[顯示裝置] [display device]

實施形態B之顯示裝置係具有觸控面板之顯示裝置，且該觸控面板為實施形態B之觸控面板。 The display device of the embodiment B is a display device having a touch panel, and the touch panel is the touch panel of the embodiment B.

作為顯示元件，可列舉：液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件、內嵌式觸控面板液晶顯示元件等。於顯示元件為液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件之情形時，於該等顯示元件上載置實施形態B之觸控面板。 Examples of the display element include a liquid crystal display element, an EL display element, a plasma display element, an electronic paper element, and an in-cell touch panel liquid crystal display element. In the case where the display element is a liquid crystal display element, an EL display element, a plasma display element, or an electronic paper element, the touch panel of Embodiment B is placed on the display elements.

實施形態B之顯示裝置由於不會過度損害表面而使書寫感變良好，故而可抑制大幅損害顯示元件之解像度之情況。 In the display device of the embodiment B, since the writing feeling is improved without excessively damaging the surface, it is possible to suppress a situation in which the resolution of the display element is greatly impaired.

[觸控面板筆用書寫片之揀選方法] [Selection method of writing pad for touch panel pen]

關於實施形態B之觸控面板筆用書寫片之揀選方法，係揀選具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且JIS K7136：2000之霧度滿足下述條件(B3)之片作為下述之觸控面板筆(B)用書寫片。 Regarding the picking method of the touch panel pen for the touch panel of the embodiment B, the maximum height roughness Rz 0.8 of JIS B0601:2001 having a cutoff value of 0.8 mm and the maximum mountain height Rp 0.8 of the roughness curve are selected, and the measurement interval is 1 mm. The skewness Psk of the profile curve satisfies the surfaces of the following conditions (B1) and (B2), and the sheet of the JIS K7136:2000 having the haze satisfying the following condition (B3) is used as the touch panel pen (B) described below. Use a writing tablet.

0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.50<Rp 0.8 /Rz 0.8 ≦0.75 (B1)

0.60≦Psk (B2) 0.60≦Psk (B2)

霧度為5.0%以上 (B3) Haze is 5.0% or more (B3)

<觸控面板筆(B)> <Touch Panel Pen (B)>

該觸控面板筆係於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m。 The touch panel pen is set to set the apparent Young's modulus of the structure of the pen tip and the shaft constituting the touch panel pen to E, the diameter of the pen tip to D, and the unit measurement interval (0.5 mm) of the pen tip. When the arithmetic mean height of the profile curve is set to Pa, X derived from the following formula (i) exceeds 500 MN/m.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

關於實施形態B之觸控面板筆用書寫片之揀選方法，即便不進行觸控面板筆之書寫試驗，亦可揀選上述式(i)之X超過500MN/m之觸控面板筆(觸控面板筆(B))之書寫感良好，並且防眩性良好之書寫片，而可高效率地進行書寫片之製品設計、品質管理。 Regarding the picking method of the touch panel pen for the touch panel of Embodiment B, even if the writing test of the touch panel pen is not performed, the touch panel pen (touch panel) in which the X of the above formula (i) exceeds 500 MN/m can be selected. The pen (B)) has a good writing feeling and a writing sheet excellent in anti-glare property, and can efficiently perform product design and quality management of the writing sheet.

揀選觸控面板筆用書寫片之判定條件係將上述(B1)~(B3)設為必須條件。條件(B1)~(B3)之判定條件較佳為上述實施形態B之書寫片之較佳之數值範圍。例如條件(B1)之判定條件較佳為0.53≦Rp0.8/Rz0.8≦0.70，更佳為0.58≦Rp0.8/Rz0.8≦0.65。 The determination conditions for picking the touch panel pen writing sheet are that the above (B1) to (B3) are necessary conditions. The condition for the determination of the conditions (B1) to (B3) is preferably a preferred numerical range of the writing sheet of the above-described embodiment B. For example, the condition (B1) is preferably determined to be 0.53 ≦ Rp 0.8 / Rz 0.8 ≦ 0.70, more preferably 0.58 ≦ Rp 0.8 / Rz 0.8 ≦ 0.65.

於實施形態B之觸控面板筆用書寫片之揀選方法中，就使書寫感變得更良好之觀點、使防眩性變得更良好之觀點，及抑制顯示元件之解像度大幅降低之觀點而言，更佳為將以下所列舉之條件(B4)~(B8)之一項以上設為判定條件，進而較佳為將(B4)~(B8)全部設為判定條件。 In the method of picking a touch panel for a touch panel pen according to the embodiment B, the viewpoint of improving the writing feeling is improved, the anti-glare property is further improved, and the resolution of the display element is suppressed from being lowered. In addition, it is more preferable to set one or more of the conditions (B4) to (B8) listed below as the determination condition, and it is preferable to set all of (B4) to (B8) as the determination conditions.

0.30μm≦Ptm≦7.00μm (B4) 0.30μm≦Ptm≦7.00μm (B4)

0.02mm≦S2.5≦0.20mm (B5) 0.02mm≦S 2.5 ≦0.20mm (B5)

0.10μm≦Ra0.8≦0.25μm (B6) 0.10μm≦Ra 0.8 ≦0.25μm (B6)

0.50μm≦RzJIS0.8≦1.50μm (B7) 0.50μm ≦Rz JIS0.8 ≦ 1.50μm (B7)

Cs為100%以上且未達250% (B8) C s is 100% or more and less than 250% (B8)

條件(B4)~(B8)之判定條件較佳為上述實施形態B之書寫片之較佳之數值範圍。 The condition for the determination of the conditions (B4) to (B8) is preferably a preferred numerical range of the writing sheet of the above-described embodiment B.

<實施形態C> <Embodiment C>

[觸控面板筆用書寫片之揀選方法] [Selection method of writing pad for touch panel pen]

實施形態C之觸控面板筆用書寫片之揀選方法係揀選滿足下述條件(C1)者作為觸控面板筆用書寫片。 In the picking method of the touch panel pen for writing in the embodiment C, the following condition (C1) is selected as the touch panel pen writing sheet.

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

圖1係表示實施形態C之觸控面板筆用書寫片10一實施形 態之剖面圖。圖1之觸控面板筆用書寫片10係於塑膠膜1之一面具有樹脂層2。圖2之觸控面板筆用書寫片10係成為樹脂層2之單層構造。 1 is a view showing a shape of a writing pad 10 for a touch panel pen according to Embodiment C. A cross-sectional view of the state. The touch panel pen writing sheet 10 of FIG. 1 has a resin layer 2 on one side of the plastic film 1. The touch panel pen writing sheet 10 of FIG. 2 is a single layer structure of the resin layer 2.

實施形態C之觸控面板筆用書寫片可一表面滿足條件(C1)，亦可兩表面滿足條件(C1)。 The writing sheet for the touch panel pen of Embodiment C can satisfy the condition (C1) on one surface, or the condition (C1) can be satisfied on both surfaces.

以下，有將觸控面板筆用書寫片稱為「書寫片」之情形時。又，以下，有將滿足條件(C1)之表面稱為「書寫面」之情形。 Hereinafter, there is a case where the writing piece for a touch panel pen is referred to as a "writing sheet". In addition, hereinafter, the surface satisfying the condition (C1) is referred to as a "writing surface".

<書寫面> <writing surface>

實施形態C之觸控面板筆用書寫片之揀選方法係揀選具有滿足下述條件(C1)之表面者作為觸控面板筆用書寫片。 In the picking method of the writing sheet for a touch panel pen according to the embodiment C, a surface having a surface satisfying the following condition (C1) is selected as a writing sheet for a touch panel pen.

於書寫文字或描繪圖形時，大多停止書寫一瞬後再開始書寫(例如，於轉換書寫方向時，通常停止書寫一瞬。又，於移動書寫位置時亦會停止書寫一瞬)。於如上述般停止書寫一瞬後再開始書寫時，容易受到靜摩擦係數與動摩擦係數之差之影響。 When writing text or drawing graphics, most of them stop writing for a while before starting to write (for example, when switching the writing direction, usually stop writing for a moment. Also, when writing the writing position, the writing will stop writing for a moment). When writing is stopped for a while as described above, it is susceptible to the difference between the static friction coefficient and the dynamic friction coefficient.

於μk/μs未達0.30、或μk/μs超過0.58之情形時，於停止書寫一瞬後再開始書寫時，將書寫方向轉換至想要之方向等較為困難，而無法完成所想像之書寫。因此，揀選滿足條件(C1)之書寫片係關係到可高效率地揀選於停止書寫一瞬後再開始書寫時可實現所想像之書寫之書寫片。 When μk/μs is less than 0.30, or μk/μs exceeds 0.58, it is difficult to convert the writing direction to the desired direction when writing is stopped after writing is stopped, and the writing of the imagination cannot be completed. Therefore, the selection of the writing piece satisfying the condition (C1) is related to the writing piece which can be efficiently selected and can realize the writing of the imaginary writing when the writing is stopped for a while.

條件(C1)較佳滿足0.30≦μk/μs≦0.44之關係。 The condition (C1) preferably satisfies the relationship of 0.30 ≦ μk/μs ≦ 0.44.

於實施形態C中，動摩擦係數μk意指全部測量時間之動摩擦係數之平均值。靜摩擦係數係設為自摩擦力0開始隨著測量時間之經過，成為動摩擦係數以上之最初之摩擦力之峰值。摩擦係數之測量間隔較佳設為0.02秒。 In the embodiment C, the dynamic friction coefficient μk means the average value of the dynamic friction coefficients of all measurement times. The static friction coefficient is set to be the peak value of the initial frictional force equal to or higher than the dynamic friction coefficient as the measurement time elapses from the frictional force 0. The measurement interval of the coefficient of friction is preferably set to 0.02 seconds.

μk、μs係設為對20個樣品各測量1次而獲得之平均值。μk/μs係設為對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs進行平均而獲得之值。 The μk and μs are average values obtained by measuring each of 20 samples. The μk/μs is a value obtained by measuring μk/μs of each sample for each of 20 samples and averaging μk/μs of 20 samples.

μk及μs可利用與實施形態A中所說明之方法相同之方法進行測量。 Μk and μs can be measured by the same method as that described in the embodiment A.

就揀選不過度光滑而適度之阻力感之書寫片之觀點而言，實施形態C之書寫片之揀選方法較佳為揀選書寫面之μk滿足下述條件(C2)者。 The picking method of the writing sheet of the embodiment C is preferably such that the μk of the picking surface satisfies the following condition (C2) from the viewpoint of selecting a writing sheet which is not excessively smooth and moderately resistant.

<條件(C2)> <condition (C2)>

0.06≦μk≦0.30 0.06≦μk≦0.30

條件(C2)更佳滿足0.08≦μk≦0.28，進而較佳滿足0.08≦μk≦0.20。 The condition (C2) more preferably satisfies 0.08 ≦μk ≦ 0.28, and further preferably satisfies 0.08 ≦ μk ≦ 0.20.

0.06≦μk≦0.30 0.06≦μk≦0.30

就揀選不過度光滑而適度之阻力感之書寫片之觀點而言，實施形態C之書寫片之揀選方法較佳揀選書寫面之μs滿足下述條件(C2')者。 From the viewpoint of selecting a writing sheet that does not have an excessively smooth and moderate resistance feeling, the sorting method of the writing sheet of the embodiment C preferably picks up the μs of the writing surface to satisfy the following condition (C2').

<條件(C2')> <condition (C2')>

0.15≦μs≦0.95 0.15≦μs≦0.95

條件(C2')更佳滿足0.20≦μs≦0.60，進而較佳滿足0.25≦μs≦0.50。 The condition (C2') more preferably satisfies 0.20 ≦μs ≦ 0.60, and further preferably satisfies 0.25 ≦ μs ≦ 0.50.

條件(C1)、(C2)及(C2')之判定所使用之觸控面板筆並無特別限定，可自市售之觸控面板筆中適當揀選。 The touch panel pen used for the determination of the conditions (C1), (C2), and (C2') is not particularly limited and can be appropriately selected from commercially available touch panel pens.

再者，於筆過於密接於書寫片之情形時及筆基本上不密接於書寫片之情形時，變得難以設計滿足條件(C1)等之書寫片。因此，條件(C1)等之判定所使用之觸控面板筆較佳於將構成觸控面板筆之筆尖及軸之構造體 之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為0.1MN/m~100,000MN/m者，更佳為0.5MN/m~80,000MN/m者。 Further, when the pen is too close to the writing piece and the pen is not substantially in close contact with the writing piece, it becomes difficult to design a writing piece satisfying the condition (C1) or the like. Therefore, the touch panel pen used for the determination of the condition (C1) or the like is preferably a structure that will constitute the nib and the shaft of the touch panel pen. The apparent Young's modulus is set to E, the diameter of the nib is set to D, and the arithmetic mean height of the cross-sectional curve in the unit measurement section (0.5 mm) of the nib is set to Pa, and is derived from the following formula (i) The X is from 0.1 MN/m to 100,000 MN/m, more preferably from 0.5 MN/m to 80,000 MN/m.

X(MN/m)=[E×D×D]/Pa (i) X(MN/m)=[E×D×D]/Pa (i)

再者，楊氏模數E之單位係「N/m2」，筆尖之直徑D之單位為「m」，算術平均高度Pa之單位為「m」。又，「M」意指「mega(106)」。 Furthermore, the unit of Young's modulus E is "N/m 2 ", the unit of the diameter D of the nib is "m", and the unit of the arithmetic mean height Pa is "m". Also, "M" means "mega (10 6)."

「觸控面板筆之筆尖及軸之構造體之表觀楊氏模數E」、「筆尖之直徑D」及「筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度Pa」可利用與實施形態A中所說明之方法相同之方法進行測量。 "The apparent Young's modulus E of the tip of the touch panel pen and the structure of the shaft", the diameter D of the nib, and the arithmetic mean height Pa of the section curve in the unit measurement section (0.5 mm) of the nib. The measurement was carried out in the same manner as the method described in the embodiment A.

又，於自上述式(i)導出之X為上述範圍之情形時，觸控面板筆之楊氏模數E、直徑D及算術平均高度Pa之各值較佳為大致以下之範圍。 Further, when the X derived from the above formula (i) is in the above range, the values of the Young's modulus E, the diameter D, and the arithmetic mean height Pa of the touch panel pen are preferably approximately the following ranges.

楊氏模數較佳為0.1~5.0GPa(1.0×108~5.0×109N/m2)，更佳為0.5~2.5GPa(5.0×108~2.5×109N/m2)。直徑D較佳為0.3~6.0mm，更佳為0.4~2.0mm。算術平均高度Pa較佳為0.01~10μm，更佳為0.05~1.0μm。 The Young's modulus is preferably 0.1 to 5.0 GPa (1.0 × 10 8 to 5.0 × 10 9 N/m 2 ), more preferably 0.5 to 2.5 GPa (5.0 × 10 8 to 2.5 × 10 9 N/m 2 ). The diameter D is preferably from 0.3 to 6.0 mm, more preferably from 0.4 to 2.0 mm. The arithmetic mean height Pa is preferably from 0.01 to 10 μm, more preferably from 0.05 to 1.0 μm.

又，條件(C1)等之判定所使用之觸控面板筆之筆尖之曲率半徑並無特別限定，較佳為0.3~1.5mm，更佳為0.5~0.8mm。 Further, the radius of curvature of the tip of the touch panel pen used for the determination of the condition (C1) or the like is not particularly limited, but is preferably 0.3 to 1.5 mm, more preferably 0.5 to 0.8 mm.

又，實施形態C之書寫片之揀選方法較佳揀選書寫片之JIS K7136：2000之霧度滿足下述條件(C3)者。 Further, in the sorting method of the writing sheet of the embodiment C, it is preferable that the haze of JIS K7136:2000 of the sorting writing sheet satisfies the following condition (C3).

<條件(C3)> <condition (C3)>

霧度為5.0%以上 Haze is 5.0% or more

藉由揀選滿足條件(C3)之書寫片，可高效率地揀選防眩 性及書寫感良好之書寫片。 Efficiently select anti-glare by picking a piece that meets the condition (C3) A writing piece with good sex and writing.

霧度較佳為10.0%以上，更佳為15.0%以上。再者，若霧度過高，則顯示元件之解像度大幅降低。因此，霧度較佳為40.0%以下，更佳為30.0%以下。 The haze is preferably 10.0% or more, more preferably 15.0% or more. Furthermore, if the haze is too high, the resolution of the display element is greatly reduced. Therefore, the haze is preferably 40.0% or less, more preferably 30.0% or less.

於對霧度及下述之透過圖像清晰度進行測量時，將光自書寫片之與書寫面相反側之表面入射。於書寫片之兩面滿足上述條件(C1)之情形時，光入射面可為任一面。 When measuring the haze and the transmission image clarity described below, light is incident from the surface of the writing sheet opposite to the writing surface. When the both sides of the writing sheet satisfy the above condition (C1), the light incident surface may be either surface.

霧度及透過清晰度係設為對20個樣品各測量1次所得之平均值。 The haze and the transmission clarity were set to average values obtained by measuring each of 20 samples.

又，實施形態C之書寫片之揀選方法較佳為揀選於將依據JIS K7374：2007所測得之圖像解析度測量器之光頻梳之寬度為0.125mm、0.5mm、1.0mm及2.0mm的透過圖像清晰度設為C0.125、C0.5、C1.0及C2.0時，C0.125、C0.5、C1.0及C2.0之總和Cs滿足下述條件(C4)者。 Further, the picking method of the writing sheet of the embodiment C is preferably selected from the widths of the optical frequency combs of the image resolution measuring device measured according to JIS K7374:2007 to be 0.125 mm, 0.5 mm, 1.0 mm, and 2.0 mm. When the image clarity is C 0.125 , C 0.5 , C 1.0 , and C 2.0 , the sum C s of C 0.125 , C 0.5 , C 1.0 , and C 2.0 satisfies the following condition (C4).

<條件(C4)> <condition (C4)>

Cs為100%以上 C s is 100% or more

藉由揀選滿足條件(C4)之書寫片，可抑制顯示元件之解像度大幅降低。 By sorting the writing sheet satisfying the condition (C4), the resolution of the display element can be suppressed from being greatly lowered.

再者，若Cs過大，則有變得難以滿足條件(C1)或條件(C3)之情形。因此，條件(C4)更佳為Cs為100%以上且未達250%，進而較佳為120%以上且230%以下，進而更佳為150%以上且200%以下。 Further, if C s is too large, it may become difficult to satisfy the condition (C1) or the condition (C3). Therefore, the condition (C4) is a C s more preferably 100% or more and less than 250%, and further preferably 120% or more and 230% or less, and further more preferably 150% or more and 200% or less.

[觸控面板筆用書寫片] [Touch Panel Pen Writing Tablet]

實施形態C之觸控面板用書寫片係具有滿足下述條件(C1)之表面者。 The writing sheet for a touch panel of the embodiment C has a surface satisfying the following condition (C1).

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

再者，即便於將觸控面板筆於以60度以外之角度(例如30~75度範圍之任意角度)接觸書寫面之狀態下進行固定時，亦較佳為μk/μs為上述範圍。又，即便於將掃描之速度設為14mm/秒以外之速度(例如0.1~100mm/秒範圍之任意速度)時，亦較佳為μk/μs為上述範圍。 Further, even when the touch panel pen is fixed in a state in which the writing surface is touched at an angle other than 60 degrees (for example, an arbitrary angle in the range of 30 to 75 degrees), it is preferable that μk/μs is in the above range. Further, even when the scanning speed is set to a speed other than 14 mm/sec (for example, an arbitrary speed in the range of 0.1 to 100 mm/sec), it is preferable that μk/μs is in the above range.

實施形態C之書寫片較佳為書寫面之μk滿足下述條件(C2)。 The writing sheet of the embodiment C preferably has a writing surface μk satisfying the following condition (C2).

<條件(C2)> <condition (C2)>

0.06≦μk≦0.30 0.06≦μk≦0.30

又，實施形態C之書寫片較佳為書寫面之μs滿足下述條件(C2')。 Further, in the writing sheet of the embodiment C, it is preferable that the writing surface μs satisfy the following condition (C2').

<條件(C2')> <condition (C2')>

0.15≦μs≦0.95 0.15≦μs≦0.95

實施形態C之書寫片之條件(C1)、(C2)及(C2')之較佳範圍係與上述觸控面板筆用書寫片之揀選方法之條件(C1)、(C2)及(C2')之較佳範圍相同。 The preferred ranges of the conditions (C1), (C2), and (C2') of the writing sheet of the embodiment C are the conditions (C1), (C2), and (C2' of the picking method of the above-described touch panel pen writing sheet. The preferred range is the same.

又，實施形態C之書寫片由於容易滿足條件(C1)、(C2)及(C2')，故而較佳為用作自上述式(i)導出之X為0.1MN/m~100，000MN/m之觸控面板筆用書寫片，更佳為用作自上述式(i)導出之X為0.5MN /m~80,000MN/m之觸控面板筆用書寫片。又，觸控面板筆之楊氏模數E、直徑D、算術平均高度Pa及筆尖之曲率半徑之各值較佳為上述之範圍。 Further, since the writing sheet of the embodiment C easily satisfies the conditions (C1), (C2), and (C2'), it is preferable to use X derived from the above formula (i) to be 0.1 MN/m to 100,000 MN/ m touch panel pen writing piece, more preferably used as X derived from the above formula (i) is 0.5 MN /m~80,000MN/m touch panel pen writing sheet. Further, the values of the Young's modulus E, the diameter D, the arithmetic mean height Pa, and the radius of curvature of the pen tip of the touch panel pen are preferably in the above range.

又，實施形態C之書寫片較佳為JIS K7136：2000之霧度滿足下述條件(C3)。 Further, in the writing sheet of the embodiment C, it is preferable that the haze of JIS K7136:2000 satisfies the following condition (C3).

<條件(C3)> <condition (C3)>

霧度為5.0%以上 Haze is 5.0% or more

又，實施形態C之書寫片較佳於將依據JIS K7374：2007所測得之圖像解析度測量器之光頻梳之寬度為0.125mm、0.5mm、1.0mm及2.0mm之透過圖像清晰度設為C0.125、C0.5、C1.0及C2.0時，C0.125、C0.5、C1.0及C2.0之總和Cs滿足下述條件(C4)。 Further, the writing sheet of the embodiment C is preferably such that the width of the optical frequency comb of the image resolution measuring device measured according to JIS K7374:2007 is 0.125 mm, 0.5 mm, 1.0 mm, and 2.0 mm. When the degree is C 0.125 , C 0.5 , C 1.0 and C 2.0 , the sum C s of C 0.125 , C 0.5 , C 1.0 and C 2.0 satisfies the following condition (C4).

<條件(C4)> <condition (C4)>

Cs為100%以上 C s is 100% or more

實施形態C之書寫片之條件(C3)及(C4)之較佳範圍係與上述觸控面板筆用書寫片之揀選方法之條件(C3)及(C4)之較佳範圍相同。 The preferred ranges of the conditions (C3) and (C4) of the writing sheet of the embodiment C are the same as the preferred ranges of the conditions (C3) and (C4) of the picking method for the touch panel pen writing sheet.

為了製成滿足條件(C1)之書寫片，較佳使高頻成分之凹凸(微小區域之凹凸)與低頻成分之凹凸(較大區域之凹凸)適當地混合存在於書寫面。以下，對高頻成分之凹凸(微小區域之凹凸)與低頻成分之凹凸(較大區域之凹凸)之差異進行說明。 In order to produce a writing sheet satisfying the condition (C1), it is preferable that the unevenness of the high-frequency component (concavity and convexity of the minute region) and the unevenness of the low-frequency component (concavity and convexity of the large region) are appropriately mixed on the writing surface. Hereinafter, the difference between the unevenness of the high-frequency component (the unevenness of the minute region) and the unevenness of the low-frequency component (the unevenness of the large region) will be described.

i於使筆接觸書寫片之階段中筆尖接地於書寫片之表面。因此，認為當筆尖越過高頻成分(微小區域)之凸部時會觸發書寫開始，而微小區域之凹凸對開始書寫時之書寫感之影響變大。 i The tip of the pen is grounded to the surface of the writing blade at the stage of contacting the pen with the writing piece. Therefore, it is considered that when the pen tip passes over the convex portion of the high-frequency component (micro area), the writing start is triggered, and the influence of the unevenness of the minute area on the writing feeling at the start of writing becomes large.

ii於開始書寫以後之階段中，筆尖沿著較大區域之凹凸表面進行移動。因此，較大區域之凹凸對開始書寫以後之書寫感之影響變大。 Ii In the stage after the start of writing, the nib moves along the uneven surface of the larger area. Therefore, the influence of the unevenness of a large area on the writing feeling after starting writing becomes large.

如上所述，微小區域之凹凸對開始書寫時之書寫感之影響較大，較大區域之凹凸對開始書寫以後之書寫感之影響較大。因此，可藉由使高頻成分之凹凸(微小區域之凹凸)與低頻成分之凹凸(較大區域之凹凸)適當混合存在於書寫面，而使書寫感變良好。 As described above, the unevenness of the minute area has a large influence on the writing feeling at the time of starting writing, and the unevenness of the large area has a large influence on the writing feeling after the start of writing. Therefore, the unevenness of the high-frequency component (the unevenness of the minute region) and the unevenness of the low-frequency component (the unevenness of the large region) can be appropriately mixed on the writing surface, and the writing feeling can be improved.

再者，於使用自上述式(i)導出之X較大之觸控面板筆之情形時，由於筆尖難以密接於書寫片之表面，故而上述(a)及(b)之傾向變強。即，於使用自上述式(i)導出之X較大之觸控面板筆之情形時，較佳使高頻成分之凹凸與低頻成分之凹凸混合存在於書寫片之書寫面。所謂X較大，意指X超過500MN/m，較佳為X為1,000MN/m以上，更佳為X為2,000MN/m以上且100,000MN/m以下。 Further, in the case of using the touch panel pen having a larger X derived from the above formula (i), since the nib is difficult to adhere to the surface of the writing sheet, the tendency of the above (a) and (b) becomes strong. That is, in the case of using the touch panel pen having a larger X derived from the above formula (i), it is preferable that the unevenness of the high-frequency component and the unevenness of the low-frequency component are mixed on the writing surface of the writing sheet. The term "large X" means that X exceeds 500 MN/m, preferably X is 1,000 MN/m or more, and more preferably X is 2,000 MN/m or more and 100,000 MN/m or less.

<書寫片整體之構成> <Structure of the whole writing sheet>

實施形態C之觸控面板筆用書寫片只要至少一表面滿足條件(C1)，則其構成並無特別限定。 In the touch panel for a touch panel pen according to the embodiment C, the configuration is not particularly limited as long as at least one surface satisfies the condition (C1).

例如，作為實施形態C之觸控面板筆用書寫片10之構成，可列舉：如圖1及圖2般具有樹脂層2，且該樹脂層2之一表面滿足條件(C1)者。 For example, the configuration of the writing sheet 10 for a touch panel pen according to the embodiment C includes a resin layer 2 as shown in FIGS. 1 and 2, and one surface of the resin layer 2 satisfies the condition (C1).

再者，雖未圖示，但亦可具有樹脂層或塑膠膜以外之其他層，且該其他層之表面滿足條件(C1)。作為其他層，可列舉：抗靜電層、防污層等。又，雖未圖示，但樹脂層亦可由2層以上構成。 Further, although not shown, other layers than the resin layer or the plastic film may be provided, and the surface of the other layer satisfies the condition (C1). Examples of the other layer include an antistatic layer, an antifouling layer, and the like. Further, although not shown, the resin layer may be composed of two or more layers.

滿足條件(C1)之表面(書寫面)可藉由(a)壓紋、噴砂、蝕刻等物理或化學處理、(b)利用模具之成型、(c)塗佈等而形成。該等方 法中，就表面形狀之再現性之觀點而言，較佳為(b)之利用模具之成型，就生產性及對應多品種之觀點而言，較佳為(c)之塗佈。 The surface (writing surface) satisfying the condition (C1) can be formed by (a) physical or chemical treatment such as embossing, sand blasting, etching, (b) molding by a mold, (c) coating, or the like. Such parties In the method, from the viewpoint of the reproducibility of the surface shape, it is preferable that the molding of the mold (b) is carried out, and the coating of (c) is preferable from the viewpoint of productivity and corresponding varieties.

關於利用塗佈之樹脂層之形成，可藉由將含有樹脂成分、粒子及溶劑而成之樹脂層形成塗佈液利用凹版塗佈、棒式塗佈等公知之塗佈方法塗佈於塑膠膜上，並進行乾燥、硬化而形成。為了使藉由塗佈而形成之樹脂層滿足條件(C1)，較佳併用微米級之粒子及奈米級之無機超微粒子作為粒子，且將膜厚、粒子之含量及粒子之平均粒徑設為下述之範圍。 The resin layer forming coating liquid containing the resin component, the particles, and the solvent can be applied to the plastic film by a known coating method such as gravure coating or bar coating. It is formed by drying and hardening. In order to satisfy the condition (C1) by the resin layer formed by coating, it is preferable to use micron-sized particles and nano-sized inorganic ultrafine particles as particles, and to set the film thickness, the content of the particles, and the average particle diameter of the particles. It is the range below.

樹脂層之膜厚較佳為1.5~10μm，更佳為2~8μm，進而較佳為4~7μm。樹脂層之膜厚例如可根據使用穿透式電子顯微鏡(TEM)或掃描穿透式電子顯微鏡(STEM)所拍攝到之剖面之圖像測量20處之厚度，並根據20處之值之平均值而算出。TEM或STEM之加速電壓較佳設為10~30kV，倍率較佳設為5萬~30萬倍。 The film thickness of the resin layer is preferably from 1.5 to 10 μm, more preferably from 2 to 8 μm, still more preferably from 4 to 7 μm. The film thickness of the resin layer can be measured, for example, at a thickness of 20 points according to an image of a cross section taken using a transmission electron microscope (TEM) or a scanning transmission electron microscope (STEM), and is based on an average value of 20 points. And calculate. The acceleration voltage of the TEM or STEM is preferably set to 10 to 30 kV, and the magnification is preferably set to 50,000 to 300,000 times.

樹脂層之粒子(微米級粒子)可使用有機粒子及無機粒子中之任一者。作為有機粒子，可列舉：由聚甲基丙烯酸甲酯、聚丙烯酸-苯乙烯共聚物、三聚氰胺樹脂、聚碳酸酯、聚苯乙烯、聚氯乙烯、苯胍胺-三聚氰胺-甲醛縮合物、聚矽氧、氟系樹脂及聚酯系樹脂等所構成之粒子。作為無機粒子，可列舉：由二氧化矽、氧化鋁、銻、氧化鋯及二氧化鈦等所構成之粒子。該等粒子中，就分散控制之容易性的觀點而言，較佳為有機粒子。 Any of the organic particles and the inorganic particles can be used as the particles (micron particles) of the resin layer. Examples of the organic particles include polymethyl methacrylate, polyacrylic acid-styrene copolymer, melamine resin, polycarbonate, polystyrene, polyvinyl chloride, benzoguanamine-melamine-formaldehyde condensate, and polyfluorene. Particles composed of oxygen, a fluorine resin, a polyester resin, or the like. Examples of the inorganic particles include particles composed of ceria, alumina, cerium, zirconia, and titania. Among these particles, organic particles are preferred from the viewpoint of easiness of dispersion control.

樹脂層中之粒子(微米級粒子)之含量較佳為形成樹脂層之全部固形物成分中之2~25質量%，更佳為5~20質量%，進而較佳為10~15質量%。 The content of the particles (micron-sized particles) in the resin layer is preferably from 2 to 25% by mass, more preferably from 5 to 20% by mass, even more preferably from 10 to 15% by mass, based on the total solid content of the resin layer.

樹脂層中之粒子(微米級粒子)之平均粒徑較佳為0.2~8.0 μm，更佳為0.3~7.0μm，進而較佳為0.5~5.0μm。於粒子凝集之情形時，較佳為凝集粒子之平均粒徑滿足上述範圍。粒子之平均粒徑可利用與實施形態A相同之方法算出。 The average particle diameter of the particles (micron-sized particles) in the resin layer is preferably 0.2 to 8.0. More preferably, it is 0.3 to 7.0 μm, and further preferably 0.5 to 5.0 μm. In the case where the particles are aggregated, it is preferred that the average particle diameter of the aggregated particles satisfies the above range. The average particle diameter of the particles can be calculated by the same method as in the embodiment A.

就容易使書寫片之表面滿足條件(C1)之觀點而言，樹脂層之膜厚較佳為大於粒子(微米級粒子)之平均粒徑。具體而言，較佳為[粒子之平均粒徑]/[樹脂層之膜厚]之比為0.40~0.80，更佳為0.45~0.75，進而較佳為0.50~0.70。 The film thickness of the resin layer is preferably larger than the average particle diameter of the particles (micron particles) from the viewpoint that the surface of the writing sheet satisfies the condition (C1). Specifically, the ratio of [average particle diameter of particles] / [film thickness of resin layer] is preferably 0.40 to 0.80, more preferably 0.45 to 0.75, still more preferably 0.50 to 0.70.

又，作為粒子，較佳不僅含有如上述之微米級粒子，亦含有奈米級之無機超微粒子。藉由含有奈米級之無機超微粒子，可容易使樹脂層之表面滿足條件(C1)。認為其原因在於：藉由微米級之粒子而形成高頻成分之凹凸(微小區域之凹凸)，另一方面，於含有無機超微粒子之情形時，於微米級粒子不存在之處亦形成較平緩之傾斜，而形成低頻成分之凹凸(較大區域之凹凸)，結果形成混合存在有高頻成分之凹凸與低頻成分之凹凸之形狀。於含有無機超微粒子之情形時，塗佈液之觸變性及溶劑之乾燥特性受到影響，而不會產生如通常之整平，因此認為會產生如上述之現象。如上所述，使高頻成分之凹凸與低頻成分之凹凸混合存在係對自上述式(i)導出之X較大之觸控面板筆極為有效。 Further, the particles preferably contain not only micron-sized particles as described above but also nano-sized inorganic ultrafine particles. By containing nano-sized inorganic ultrafine particles, the surface of the resin layer can be easily satisfied (C1). The reason for this is that the irregularities of the high-frequency component (the irregularities of the minute regions) are formed by the micron-sized particles, and on the other hand, when the inorganic ultrafine particles are contained, the micron-sized particles are formed in a relatively gentle manner. When it is inclined, the unevenness of the low-frequency component (concavity and convexity in a large area) is formed, and as a result, a shape in which the unevenness of the high-frequency component and the unevenness of the low-frequency component are mixed are formed. In the case of containing inorganic ultrafine particles, the thixotropic properties of the coating liquid and the drying characteristics of the solvent are affected without causing normal leveling, and thus it is considered that the above phenomenon occurs. As described above, the combination of the unevenness of the high-frequency component and the unevenness of the low-frequency component is extremely effective for the touch panel pen having a larger X derived from the above formula (i).

又，藉由含有無機超微粒子，而於微米級粒子不存在之處亦形成較平緩之傾斜，結果(大致平滑之處減少之結果)可使防眩性亦變得良好。 Further, by containing the inorganic ultrafine particles, a gentle slope is formed in the absence of the micron-sized particles, and as a result (the result of a reduction in the approximate smoothness), the antiglare property can be improved.

作為無機超微粒子，可列舉：由二氧化矽、氧化鋁、氧化鋯及二氧化鈦等所構成之超微粒子。該等中，就透明性之觀點而言，較佳為二氧化矽超微粒子。 Examples of the inorganic ultrafine particles include ultrafine particles composed of ceria, alumina, zirconia, and titania. Among these, from the viewpoint of transparency, cerium oxide ultrafine particles are preferred.

就容易獲得上述凹凸形狀之觀點而言，無機超微粒子較佳為平均一次粒徑為1~25nm，更佳為5~20nm。 The inorganic ultrafine particles preferably have an average primary particle diameter of from 1 to 25 nm, more preferably from 5 to 20 nm, from the viewpoint of easily obtaining the above-mentioned uneven shape.

無機超微粒子較佳為藉由表面處理而導入有反應性基之反應性無機超微粒子。藉由導入反應性基，而可於樹脂層中含有大量之無機超微粒子，而可容易使書寫片之表面形狀為上述範圍。 The inorganic ultrafine particles are preferably reactive inorganic ultrafine particles into which a reactive group is introduced by surface treatment. By introducing a reactive group, a large amount of inorganic ultrafine particles can be contained in the resin layer, and the surface shape of the writing sheet can be easily made into the above range.

作為反應性基，可較佳地使用聚合性不飽和基，較佳為光硬化性不飽和基，尤佳為游離輻射硬化性不飽和基。作為其具體例，可列舉：(甲基)丙烯醯基、(甲基)丙烯醯氧基、乙烯基及烯丙基等乙烯性不飽和鍵以及環氧基等。 As the reactive group, a polymerizable unsaturated group can be preferably used, preferably a photocurable unsaturated group, and particularly preferably an free radiation curable unsaturated group. Specific examples thereof include an ethylenically unsaturated bond such as a (meth)acrylonitrile group, a (meth)acryloxy group, a vinyl group, and an allyl group, and an epoxy group.

此種反應性無機超微粒子可列舉經矽烷偶合劑表面處理之無機超微粒子。利用矽烷偶合劑對無機超微粒子之表面進行處理時，可列舉：將矽烷偶合劑向無機超微粒子進行噴射之乾式法；或使無機超微粒子分散於溶劑中後添加矽烷偶合劑而使之反應之濕式法等。 Examples of such reactive inorganic ultrafine particles include inorganic ultrafine particles surface-treated with a decane coupling agent. When the surface of the inorganic ultrafine particles is treated with a decane coupling agent, a dry method in which a decane coupling agent is sprayed onto the inorganic ultrafine particles is used, or the inorganic ultrafine particles are dispersed in a solvent, and then a decane coupling agent is added to cause a reaction. Wet method, etc.

無機超微粒子之含量較佳為形成樹脂層之全部固形物成分中之1~20質量%，更佳為2~15質量%，進而較佳為3~10質量%。藉由設為該範圍，可利用整平性之控制，及樹脂層之聚合收縮之抑制而容易使書寫片之表面形狀為上述範圍。 The content of the inorganic ultrafine particles is preferably from 1 to 20% by mass, more preferably from 2 to 15% by mass, even more preferably from 3 to 10% by mass, based on the total solid content of the resin layer. By setting it as this range, it is easy to make the surface shape of a writing sheet into the said range by the control of a leveling property, and suppression of the polymerization shrinkage of a resin layer.

又，關於樹脂層中之微米級粒子及無機超微粒子之含量之比(微米級粒子之含量/無機超微粒子之含量)，就容易使書寫片之表面形狀為上述範圍之觀點而言，較佳為1.0~3.0，更佳為1.5~2.5。 Further, the ratio of the content of the micron-sized particles and the inorganic ultrafine particles in the resin layer (the content of the micron-sized particles/the content of the inorganic ultrafine particles) is preferably from the viewpoint that the surface shape of the writing sheet is in the above range. It is 1.0~3.0, more preferably 1.5~2.5.

樹脂層之樹脂成分較佳包含熱硬化性樹脂組成物或游離輻射硬化性樹脂組成物之硬化物，就使機械強度變得更良好之觀點而言，更 佳為包含游離輻射硬化性樹脂組成物之硬化物，其中，進而較佳包含紫外線硬化性樹脂組成物之硬化物。 The resin component of the resin layer preferably contains a cured product of a thermosetting resin composition or a free radiation curable resin composition, and from the viewpoint of improving mechanical strength, It is preferable to contain a cured product of the composition of the radiation curable resin, and further preferably, it contains a cured product of the ultraviolet curable resin composition.

熱硬化性樹脂組成物係至少包含熱硬化性樹脂之組成物，且係藉由加熱而硬化之樹脂組成物。 The thermosetting resin composition contains at least a composition of a thermosetting resin and is a resin composition which is cured by heating.

作為熱硬化性樹脂，可列舉：丙烯酸系樹脂、胺基甲酸酯樹脂、酚系樹脂、脲三聚氰胺樹脂、環氧樹脂、不飽和聚酯樹脂、矽酮樹脂等。於熱硬化性樹脂組成物中，視需要向該等硬化性樹脂添加硬化劑。 Examples of the thermosetting resin include an acrylic resin, a urethane resin, a phenol resin, a urea melamine resin, an epoxy resin, an unsaturated polyester resin, and an anthrone resin. In the thermosetting resin composition, a curing agent is added to the curable resins as needed.

游離輻射硬化性樹脂組成物係包含具有游離輻射硬化性官能基之化合物(以下，亦稱為「游離輻射硬化性化合物」)之組成物。作為游離輻射硬化性官能基，可列舉：(甲基)丙烯醯基、乙烯基、烯丙基等乙烯性不飽和鍵結基及環氧基、氧雜環丁基等。作為游離輻射硬化性化合物，較佳為具有乙烯性不飽和鍵結基之化合物，更佳為具有2個以上之乙烯性不飽和鍵結基之化合物，其中，進而較佳為具有2個以上之乙烯性不飽和鍵結基之多官能性(甲基)丙烯酸酯系化合物。作為多官能性(甲基)丙烯酸酯系化合物，單體及低聚物均可使用。 The composition of the radiation curable resin is a composition of a compound having an epitaxial radiation-curable functional group (hereinafter also referred to as "free radiation curable compound"). Examples of the radical radiation-curable functional group include an ethylenically unsaturated bonding group such as a (meth)acryl fluorenyl group, a vinyl group, and an allyl group, and an epoxy group or an oxetanyl group. The free radiation curable compound is preferably a compound having an ethylenically unsaturated bond group, more preferably a compound having two or more ethylenically unsaturated bond groups, and more preferably two or more. A polyfunctional (meth) acrylate compound having an ethylenically unsaturated bonding group. As the polyfunctional (meth) acrylate type compound, both a monomer and an oligomer can be used.

再者，所謂游離輻射，意指電磁波或帶電粒子束中具有可使分子聚合或交聯之能量量子者，通常可使用紫外線(UV)或電子束(EB)，此外，亦可使用X射線、γ射線等電磁波；α射線、離子束等帶電粒子束。 In addition, the term "free radiation" means an electromagnetic wave or a charged quantum beam having an energy quantum capable of polymerizing or crosslinking a molecule, and generally, ultraviolet (UV) or electron beam (EB) may be used, and X-rays may also be used. Electromagnetic waves such as gamma rays; charged particle beams such as alpha rays and ion beams.

多官能性(甲基)丙烯酸酯系化合物中，作為雙官能(甲基)丙烯酸酯系單體，可列舉：乙二醇二(甲基)丙烯酸酯、雙酚A四乙氧基二丙烯酸酯、雙酚A四丙氧基二丙烯酸酯、1,6-己二醇二丙烯酸酯等。 Among the polyfunctional (meth)acrylate compounds, examples of the difunctional (meth)acrylate monomer include ethylene glycol di(meth)acrylate and bisphenol A tetraethoxy diacrylate. , bisphenol A tetrapropoxy diacrylate, 1,6-hexanediol diacrylate, and the like.

作為3官能以上之(甲基)丙烯酸酯系單體，例如可列舉：三羥甲基丙烷 三(甲基)丙烯酸酯、新戊四醇三(甲基)丙烯酸酯、新戊四醇四(甲基)丙烯酸酯、二新戊四醇六(甲基)丙烯酸酯、二新戊四醇四(甲基)丙烯酸酯、異三聚氰酸改質三(甲基)丙烯酸酯等。 Examples of the trifunctional or higher (meth)acrylate monomer include trimethylolpropane. Tris(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol Tetra (meth) acrylate, iso-cyanuric acid modified tri(meth) acrylate, and the like.

又，上述(甲基)丙烯酸酯系單體亦可為將分子骨架之一部分改質者，亦可使用經環氧乙烷、環氧丙烷、己內酯、異三聚氰酸、烷基、環狀烷基、芳香族、雙酚等改質而成者。 Further, the (meth) acrylate monomer may be one in which a part of the molecular skeleton is modified, and ethylene oxide, propylene oxide, caprolactone, iso-cyanuric acid, or an alkyl group may be used. It is a modified one of a cyclic alkyl group, an aromatic group, and a bisphenol.

又，作為多官能性(甲基)丙烯酸酯系低聚物，可列舉：胺酯(甲基)丙烯酸酯、環氧(甲基)丙烯酸酯、聚酯(甲基)丙烯酸酯、聚醚(甲基)丙烯酸酯等丙烯酸酯系聚合物等。 Moreover, examples of the polyfunctional (meth)acrylate-based oligomer include an amine ester (meth)acrylate, an epoxy (meth)acrylate, a polyester (meth)acrylate, and a polyether ( An acrylate polymer such as a methyl acrylate.

胺酯(甲基)丙烯酸酯例如可藉由多元醇及有機二異氰酸酯與羥基(甲基)丙烯酸酯之反應而獲得。 The amine ester (meth) acrylate can be obtained, for example, by a reaction of a polyol and an organic diisocyanate with a hydroxy (meth) acrylate.

又，較佳之環氧(甲基)丙烯酸酯係使3官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與多元酸及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯；及使雙官能以上之芳香族環氧樹脂、脂環族環氧樹脂、脂肪族環氧樹脂等與酚類及(甲基)丙烯酸進行反應而獲得之(甲基)丙烯酸酯。 Further, a preferred epoxy (meth) acrylate is obtained by reacting a trifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with (meth)acrylic acid. (meth) acrylate; a (meth) acrylate obtained by reacting a difunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, an aliphatic epoxy resin, or the like with a polybasic acid and (meth)acrylic acid; And a (meth) acrylate obtained by reacting a bifunctional or higher aromatic epoxy resin, an alicyclic epoxy resin, or an aliphatic epoxy resin with a phenol or a (meth)acrylic acid.

上述游離輻射硬化性化合物可單獨使用1種，或組合2種以上使用。 The above-mentioned free radiation curable compounds may be used alone or in combination of two or more.

於游離輻射硬化性化合物為紫外線硬化性化合物之情形時，游離輻射硬化性組成物較佳包含光聚合起始劑或光聚合促進劑等添加劑。 When the free radiation curable compound is an ultraviolet curable compound, the free radiation curable composition preferably contains an additive such as a photopolymerization initiator or a photopolymerization accelerator.

作為光聚合起始劑，可列舉：選自苯乙酮、二苯甲酮、α-羥基烷基苯 酮、米其勒酮、安息香、苯偶醯二甲基縮酮、苯甲醯基苯甲酸酯、α-醯基肟酯、9-氧硫類等中之1種以上。 The photopolymerization initiator may be selected from the group consisting of acetophenone, benzophenone, α-hydroxyalkylphenone, mischrone, benzoin, benzoin dimethyl ketal, benzhydrazine benzene. Formate, α-mercaptodecyl ester, 9-oxosulfur One or more of the classes.

該等光聚合起始劑較佳為熔點為100℃以上。藉由將光聚合起始劑之熔點設為100℃以上，而於書寫片之製造過程、或觸控面板之透明導電膜之形成過程中所殘留之光聚合起始劑昇華，而可防止製造裝置或透明導電膜之污染。 The photopolymerization initiator preferably has a melting point of 100 ° C or higher. By setting the melting point of the photopolymerization initiator to 100 ° C or higher, the photopolymerization initiator remaining in the process of producing the writing sheet or the transparent conductive film of the touch panel is sublimated, thereby preventing the manufacture. Contamination of the device or transparent conductive film.

又，光聚合促進劑係可減輕硬化時之由空氣引起之聚合抑制而使硬化速度加快者，例如可列舉：選自對二甲胺基苯基苯甲酸異戊酯、對二甲胺基苯甲酸乙酯等中之1種以上。 Further, the photopolymerization accelerator can reduce the polymerization inhibition by air at the time of curing and accelerate the curing rate, and examples thereof include, for example, isoamyl p-dimethylaminophenylbenzoate and p-dimethylaminobenzene. One or more of ethyl formate and the like.

於樹脂層形成塗佈液中，通常為了調節黏度、或可使各成分溶解或分散而使用溶劑。根據溶劑之種類，在塗佈、乾燥過程後之樹脂層之表面狀態不同，因此較佳為考慮溶劑之飽和蒸氣壓、溶劑向透明基材之滲透性等而選定溶劑。具體而言，溶劑例如可例示：酮類(丙酮、甲基乙基酮、甲基異丁基酮、環己酮等)、醚類(二烷、四氫呋喃等)、脂肪族烴類(己烷等)、脂環式烴類(環己烷等)、芳香族烴類(甲苯、二甲苯等)、鹵化碳類(二氯甲烷、二氯乙烷等)、酯類(乙酸甲酯、乙酸乙酯、乙酸丁酯等)、醇類(丁醇、環己醇等)、溶纖劑類(甲基溶纖劑、乙基溶纖劑等)、乙酸溶纖劑類、亞碸類(二甲基亞碸等)、醯胺類(二甲基甲醯胺、二甲基乙醯胺等)等，亦可為該等之混合物。 In the resin layer forming coating liquid, a solvent is usually used in order to adjust the viscosity or to dissolve or disperse each component. Depending on the type of the solvent, the surface state of the resin layer after the coating and drying process is different. Therefore, it is preferred to select a solvent in consideration of the saturated vapor pressure of the solvent, the permeability of the solvent to the transparent substrate, and the like. Specifically, examples of the solvent include ketones (acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, etc.) and ethers (two). Alkane, tetrahydrofuran, etc., aliphatic hydrocarbons (such as hexane), alicyclic hydrocarbons (such as cyclohexane), aromatic hydrocarbons (such as toluene and xylene), and halogenated carbons (dichloromethane and dichloroethylene) Ethane, etc., esters (methyl acetate, ethyl acetate, butyl acetate, etc.), alcohols (butanol, cyclohexanol, etc.), cellosolve (methyl cellosolve, ethyl cellosolve) And so on, cellulose cellosolve, sulfonium (dimethyl hydrazine, etc.), guanamine (dimethylformamide, dimethylacetamide, etc.), etc., may also be a mixture of these.

於溶劑之乾燥過慢之情形時，樹脂層之整平性會變得過度，因此變得難以形成上述之表面形狀。因此，作為溶劑，較佳包含全部溶劑中之50質量%以上之蒸發速度(將乙酸正丁酯之蒸發速度設為100時之相對蒸發速 度)為180以上之溶劑，更佳包含60質量%以上。作為相對蒸發速度為180以上之溶劑，可列舉：甲苯。甲苯之相對蒸發速度為195。 When the drying of the solvent is too slow, the leveling property of the resin layer may become excessive, and thus it becomes difficult to form the above-described surface shape. Therefore, as the solvent, it is preferred to include an evaporation rate of 50% by mass or more of all the solvents (relative evaporation rate when the evaporation rate of n-butyl acetate is set to 100) The degree of the solvent is 180 or more, more preferably 60% by mass or more. The solvent having a relative evaporation rate of 180 or more is, for example, toluene. The relative evaporation rate of toluene was 195.

又，就使表面形狀適度平滑，而容易使書寫片之表面形狀為上述範圍之觀點而言，較佳於樹脂層形成塗佈液中含有整平劑。整平劑可列舉：氟系整平劑、聚矽氧系整平劑、氟聚矽氧共聚物系整平劑等，較佳為聚矽氧系整平劑。作為整平劑之添加量，相對於樹脂層形成塗佈液之全部固形物成分，較佳為0.01~0.5重量%，更佳為0.01~0.2重量%。 Moreover, it is preferable to contain a leveling agent in the resin layer forming coating liquid from the viewpoint of making the surface shape moderately smooth and easily making the surface shape of the writing sheet into the above range. The leveling agent may, for example, be a fluorine-based leveling agent, a polyfluorene-based leveling agent, a fluoropolyoxy-oxygen copolymer-based leveling agent, or the like, and is preferably a polyfluorene-based leveling agent. The amount of the leveling agent to be added is preferably 0.01 to 0.5% by weight, and more preferably 0.01 to 0.2% by weight based on the total solid content of the coating layer of the resin layer.

塑膠膜可由聚酯、三乙醯纖維素(TAC)、二乙酸纖維素、乙酸丁酸纖維素、聚醯胺、聚醯亞胺、聚醚碸、聚碸、聚丙烯、聚甲基戊烯、聚氯乙烯、聚乙烯醇縮醛、聚醚酮、聚甲基丙烯酸甲酯、聚碳酸酯、聚碳酸酯及非晶質烯烴(Cyclo-Olefin-Polymer：COP)等樹脂形成。 The plastic film can be made of polyester, triacetyl cellulose (TAC), cellulose diacetate, cellulose acetate butyrate, polyamide, polyimine, polyether oxime, polyfluorene, polypropylene, polymethylpentene. It is formed of a resin such as polyvinyl chloride, polyvinyl acetal, polyether ketone, polymethyl methacrylate, polycarbonate, polycarbonate, and amorphous olefin (Cyclo-Olefin-Polymer: COP).

該等塑膠膜中，就機械強度或尺寸穩定性之觀點而言，較佳為經延伸加工、尤其是雙軸延伸加工之聚酯(聚對苯二甲酸乙二酯、聚萘二甲酸乙二酯)。 In the plastic film, from the viewpoint of mechanical strength or dimensional stability, polyester (polyethylene terephthalate or polyethylene naphthalate) which is subjected to elongation processing, especially biaxial stretching processing, is preferred. ester).

塑膠膜之厚度較佳為5~200μm，更佳為10~150μm。 The thickness of the plastic film is preferably from 5 to 200 μm, more preferably from 10 to 150 μm.

[觸控面板] [Touch Panel]

實施形態C之觸控面板係表面具有片之觸控面板，且係以作為該片之實施形態C之觸控面板筆用書寫片之滿足條件(C1)之側的面朝向觸控面板之表面的方式進行配置而成者。 The surface of the touch panel of the embodiment C has a touch panel of a sheet, and the surface of the touch panel pen for the touch panel pen of the embodiment C of the sheet C faces the surface of the touch panel. The way to configure the creator.

作為觸控面板，可列舉：電阻膜式觸控面板、靜電電容式觸控面板、內嵌式觸控面板、光學式觸控面板、超音波式觸控面板及電磁感應式觸控面板等。 As the touch panel, a resistive touch panel, a capacitive touch panel, an in-cell touch panel, an optical touch panel, an ultrasonic touch panel, and an electromagnetic induction touch panel are exemplified.

電阻膜式觸控面板100係如圖3所示般，將以使具有導電膜30之上下一對透明基板20之導電膜30彼此對向之方式隔著間隔片40進行配置而成之構成設為基本構成，並將未圖示之電路連接於該基本構成而成者。 As shown in FIG. 3, the resistive touch panel 100 is configured such that the conductive film 30 having the pair of transparent substrates 20 on the conductive film 30 is placed opposite to each other with the spacer 40 interposed therebetween. In order to have a basic configuration, a circuit (not shown) is connected to the basic configuration.

於電阻膜式觸控面板之情形時，例如可列舉如下構成：使用實施形態C之書寫片10作為上部透明基板20，且以該書寫片10之滿足條件(C1)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但電阻膜式觸控面板亦可為如下構成：於上部透明基板上將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式貼合；或者於上部透明基板上將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the resistive touch panel, for example, the writing sheet 10 of the embodiment C is used as the upper transparent substrate 20, and the surface of the writing sheet 10 that satisfies the condition (C1) faces the touch. The manner of the surface of the panel 100 is used. Further, although not shown, the resistive touch panel may be configured such that the writing piece of the embodiment C is attached to the upper transparent substrate so that the surface on the side of the condition (C1) faces the surface; or The writing piece of the embodiment C is placed on the upper transparent substrate so that the surface on the side of the condition (C1) faces the surface, and is fixed by a frame or the like.

靜電電容式觸控面板可列舉表面型及投影型等，大多使用投影型。投影型之靜電電容式觸控面板係將電路連接於基本構成而成者，該基本構成係將X軸電極，及與該X軸電極正交之Y軸電極隔著絕緣體進行配置而成。若更具體地說明該基本構成，則可列舉：於1片透明基板上之不同面形成X軸電極及Y軸電極之態樣；於透明基板上依序形成X軸電極、絕緣體層、Y軸電極之態樣；如圖4所示般於透明基板20上形成X軸電極50，於另一透明基板20上形成Y軸電極60，經由接著劑層等絕緣體層70進行積層之態樣等。又，可列舉於該等基本態樣中進而積層另一透明基板之態樣。 The capacitive touch panel is exemplified by a surface type and a projection type, and a projection type is often used. A projection type capacitive touch panel is obtained by connecting a circuit to a basic configuration in which an X-axis electrode and a Y-axis electrode orthogonal to the X-axis electrode are disposed via an insulator. More specifically, the basic configuration is such that an X-axis electrode and a Y-axis electrode are formed on different surfaces of one transparent substrate, and an X-axis electrode, an insulator layer, and a Y-axis are sequentially formed on the transparent substrate. As shown in FIG. 4, the X-axis electrode 50 is formed on the transparent substrate 20, the Y-axis electrode 60 is formed on the other transparent substrate 20, and the layer is laminated via the insulator layer 70 such as an adhesive layer. Moreover, the aspect in which another transparent substrate is laminated in these basic aspects is mentioned.

於靜電電容式觸控面板之情形時，例如可列舉如下構成：使用實施形態C之書寫片10作為表面側之透明基板20，且以該書寫片10之滿足條件 (C1)之側的面朝向觸控面板100之表面的方式使用。又，雖未圖示，但靜電電容式觸控面板亦可為如下構成：於表面側之透明基板上將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式貼合；或者於表面側之透明基板上將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the capacitive touch panel, for example, the writing sheet 10 of the embodiment C is used as the transparent substrate 20 on the front side, and the condition of the writing sheet 10 is satisfied. The surface on the side of (C1) is used toward the surface of the touch panel 100. Further, although not shown, the capacitive touch panel may be configured such that the writing piece of the embodiment C is placed on the transparent substrate on the front side so that the surface on the side of the condition (C1) faces the surface. Or, the writing piece of the embodiment C is placed on the transparent substrate on the front side so that the surface on the side of the condition (C1) faces the surface, and is fixed by a frame or the like.

電磁感應式觸控面板係使用產生磁場之專用筆之觸控面板。電磁感應式觸控面板至少具有檢測自筆產生之電磁能量之感測器部，進而於感測器部上具有透明基板。該透明基板亦可為多層構成。 The electromagnetic induction type touch panel is a touch panel using a special pen that generates a magnetic field. The electromagnetic induction type touch panel has at least a sensor portion for detecting electromagnetic energy generated from a pen, and further has a transparent substrate on the sensor portion. The transparent substrate may also be composed of a plurality of layers.

於電磁感應式觸控面板之情形時，例如可列舉如下構成：使用實施形態C之書寫片作為位於感測器部上之透明基板中最表面之透明基板，且以該書寫片之滿足條件(C1)之側的面朝向觸控面板之表面的方式使用。或者，於電磁感應式觸控面板之情形時，亦可為如下構成：於位於感測器部上之透明基板中最表面之透明基板上，將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式貼合；或者於該最表面之透明基板上，將實施形態C之書寫片以滿足條件(C1)之側的面朝向表面之方式進行載置，並利用框架等固定。 In the case of the electromagnetic induction touch panel, for example, the writing sheet of the embodiment C is used as the transparent substrate on the outermost surface of the transparent substrate on the sensor portion, and the condition of the writing sheet is satisfied ( The side of the side of C1) is used toward the surface of the touch panel. Alternatively, in the case of the electromagnetic induction type touch panel, the writing piece of the embodiment C may be satisfied on the transparent substrate on the outermost surface of the transparent substrate located on the sensor portion (C1). The surface on the side of the surface is bonded to the surface, or the surface of the writing sheet of the embodiment C is placed on the transparent substrate of the embodiment C so that the surface on the side of the condition (C1) faces the surface, and the frame or the like is used. fixed.

內嵌式觸控面板係於在2片玻璃基板間夾持液晶而成之液晶元件之內部嵌入有電阻膜式、靜電電容式、光學式等觸控面板功能者。 The in-cell touch panel is in which a touch panel function such as a resistive film type, a capacitive type, or an optical type is embedded in a liquid crystal element in which a liquid crystal is sandwiched between two glass substrates.

於內嵌式觸控面板之情形時，例如可列舉如下構成：向表面側之玻璃基板，以實施形態C之書寫片滿足條件(C1)之側的面朝向表面之方式貼合而使用。再者，亦可於表面側之玻璃基板與實施形態C之書寫片之間具有偏光板等其他層。 In the case of the in-cell type touch panel, for example, the glass substrate on the surface side is bonded and used such that the surface on which the writing sheet of the embodiment C satisfies the condition (C1) faces the surface. Further, another layer such as a polarizing plate may be provided between the glass substrate on the front side and the writing sheet in the embodiment C.

[觸控面板系統] [Touch Panel System]

實施形態C之觸控面板系統係由表面具有觸控面板筆用書寫片之觸控面板與觸控面板筆所構成之觸控面板系統，且係滿足下述條件(C1)者。 The touch panel system of the embodiment C is a touch panel system comprising a touch panel having a touch panel pen writing sheet and a touch panel pen, and the following condition (C1) is satisfied.

<條件(C1)> <condition (C1)>

將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 The touch panel pen is fixed in a state of contacting the surface of the touch panel pen with a writing angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of one step of 40 mm at a speed of 14 mm/sec. The dynamic friction coefficient acting in the scanning direction of the touch panel pen at this time is μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less.

實施形態C之觸控面板系統中之觸控面板、觸控面板筆用書寫片，及觸控面板筆之實施形態例如可列舉：與上述實施形態C之觸控面板筆用書寫片之揀選方法、觸控面板筆用書寫片及觸控面板中所示之實施形態相同者。 The embodiment of the touch panel, the touch panel pen, and the touch panel pen in the touch panel system of the embodiment C include, for example, the method of picking the touch panel pen of the embodiment C. The embodiment shown in the touch panel pen writing sheet and the touch panel is the same.

根據實施形態C之觸控面板系統，可使觸控面板之書寫感變良好。 According to the touch panel system of the embodiment C, the writing feeling of the touch panel can be improved.

[顯示裝置] [display device]

實施形態C之顯示裝置係具有觸控面板之顯示裝置，且該觸控面板為實施形態C之觸控面板。 The display device of the embodiment C is a display device having a touch panel, and the touch panel is the touch panel of the embodiment C.

作為顯示元件，可列舉：液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件、內嵌式觸控面板液晶顯示元件等。於顯示元件為液晶顯示元件、EL顯示元件、電漿顯示元件、電子紙元件之情形時，於該等顯示元件上載置實施形態C之觸控面板。 Examples of the display element include a liquid crystal display element, an EL display element, a plasma display element, an electronic paper element, and an in-cell touch panel liquid crystal display element. In the case where the display element is a liquid crystal display element, an EL display element, a plasma display element, or an electronic paper element, the touch panel of the embodiment C is placed on the display elements.

實施形態C之顯示裝置由於不會過度損害表面而使書寫感變良好，故而可抑制大幅損害顯示元件之解像度之情況。 In the display device of the embodiment C, the writing feeling is improved without excessively damaging the surface, so that the resolution of the display element can be largely impaired.

[實施例] [Examples]

其次，藉由實施例，對本發明更詳細地進行說明，但本發明並不受該例之任何限定。 Next, the present invention will be described in more detail by way of examples, but the present invention is not limited by the examples.

<實施形態A之實施例> <Embodiment of Embodiment A>

A1.測量及評價 A1. Measurement and evaluation

針對實施例及比較例中所製作之觸控面板筆用書寫片，進行以下之測量及評價。將結果示於表1。 The following measurement and evaluation were performed on the writing sheets for the touch panel pen produced in the examples and the comparative examples. The results are shown in Table 1.

A1-1.表面形狀測量 A1-1. Surface shape measurement

將實施例及比較例之觸控面板用書寫片切割成10cm見方。切割部位係利用目視確認沒有塵埃或損傷等異常點後，自隨機部位揀選。將切割出之表面構件經由東麗公司製造之光學透明黏著片(折射率：1.47，厚度100μm)貼合於長10cm×寬10cm尺寸之黑色板(可樂麗公司製造，商品名：CosmoGrass編號：DFA502K，厚度2.0mm)而獲得樣品，準備該樣品20個。 The writing sheets for the touch panel of the examples and the comparative examples were cut into 10 cm squares. The cut portion was visually confirmed to have no abnormal points such as dust or damage, and was picked from a random portion. The cut surface member was bonded to a black plate having a length of 10 cm × a width of 10 cm by an optically transparent adhesive sheet (refractive index: 1.47, thickness: 100 μm) manufactured by Toray Industries, Inc. (manufactured by Kuraray Co., Ltd., trade name: CosmoGrass No.: DFA502K) A sample was obtained with a thickness of 2.0 mm), and 20 samples were prepared.

使用表面粗糙度測量器(型號：SE-3400/小阪研究所股份有限公司製造)，以成為樣品固定且密接於測量臺上之狀態之方式進行設置後，藉由下述之測量條件，針對下述之測量項目，測量各樣品之樹脂層側之表面形狀。然後，將20個樣品之平均值設為各實施例及比較例之Rz0.8、Rv0.8、S2.5、Ra0.8及Ptm。將結果示於表1。 Using a surface roughness measuring device (model: SE-3400/manufactured by Kosei Research Co., Ltd.), the sample is set so as to be in a state of being fixed to the measuring table, and the following measurement conditions are used. The measurement items described were measured for the surface shape of the resin layer side of each sample. Then, the average value of the 20 samples was defined as Rz 0.8 , Rv 0.8 , S 2.5 , Ra 0.8 and Ptm of each of the examples and the comparative examples. The results are shown in Table 1.

<測量條件> <Measurement conditions>

[表面粗糙度檢測部之觸針] [The stylus of the surface roughness detecting section]

小阪研究所公司製造之商品名SE2555N(前端曲率半徑：2μm，頂角： 90度，材質：金剛石) The trade name SE2555N manufactured by Kosaka Research Co., Ltd. (front end radius of curvature: 2μm, top angle: 90 degrees, material: diamond)

[表面粗糙度測量器之測量條件] [Measurement conditions of surface roughness measuring device]

‧Rz0.8、Rv0.8、S2.5及Ra0.8之評價長度：截止值λc之5倍 ‧ Rz 0.8 , Rv 0.8 , S 2.5 and Ra 0.8 evaluation length: 5 times the cutoff value λc

‧Rz0.8、Rv0.8、S2.5及Ra0.8之預備長度：截止值λc之2倍 ‧Rz 0.8 , Rv 0.8 , S 2.5 and Ra 0.8 preparation length: 2 times the cutoff value λc

‧觸針之輸送速度：0.5mm/s ‧Needle delivery speed: 0.5mm/s

‧縱向倍率：2000倍 ‧ Vertical magnification: 2000 times

‧橫向倍率：10倍 ‧ Horizontal magnification: 10 times

‧滑動墊木：不使用(未接觸測量面) ‧Sliding mat: not used (not touching the measuring surface)

‧截止濾波器種類：高斯 ‧ Cutoff filter type: Gauss

‧死帶等級：10% ‧ Dead band rating: 10%

‧tp/PC曲線：普通 ‧tp/PC curve: ordinary

<測量項目> <Measurement item>

‧將截止值0.8mm之JIS B0601：2001之最大高度粗糙度設為Rz0.8，將截止值0.8mm之JIS B0601：2001之粗糙度曲線之最大谷深設為Rv0.8時之Rv0.8/Rz0.8 The cutoff value of 0.8mm ‧ JIS B0601: 2001 of the maximum height roughness to Rz 0.8, the cutoff value of 0.8mm JIS B0601: 2001 of the roughness curve of the maximum valley depth Rv 0.8 is set when the Rv 0.8 / Rz 0.8

‧截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5 ‧ cutoff value of 2.5mm JIS B0601: 1994 Peak of the local average spacing S 2.5

‧截止值0.8mm之JIS B0601：2001之算術平均粗糙度Ra0.8 ‧The arithmetic mean roughness Ra 0.8 of JIS B0601:2001 with a cutoff value of 0.8 mm

‧將單位測量區間設為1mm、將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt時之5個測量區間之Pt的平均值Ptm。截止值為0。 ‧ Set the unit measurement interval to 1 mm, set the maximum height of the profile in the unit measurement section to Pp, and set the maximum valley depth of the profile curve in the unit measurement section to Pv, and set the sum of Pp and Pv to The average value Ptm of Pt of the five measurement intervals at the maximum profile height Pt of the profile curve in the unit measurement section. The cutoff value is 0.

A1-2.透過圖像清晰度 A1-2. Through image clarity

準備將實施例及比較例之觸控面板用書寫片切割為5cm見方之樣品各20個。20個部位係利用目視確認沒有塵埃或損傷等異常點後，自隨機部位揀選。 It is prepared to cut the writing sheet for the touch panel of the examples and the comparative examples into 20 samples each of which is 5 cm square. The 20 parts were visually confirmed to have no abnormal points such as dust or damage, and were picked from random parts.

使用Suga Test Instruments公司製造之圖像解析度測量器(商品名：ICM-1T)，依據JIS K7374：2000對各樣品之通過寬度0.125mm、0.5mm、1mm及2mm之光頻梳之4種透過圖像清晰度進行測量，並算出總和Cs。然後，將20個樣品之平均值設為各實施例及比較例之總和Cs。光入射面係設為塑膠膜側。 Using an image resolution measuring instrument (trade name: ICM-1T) manufactured by Suga Test Instruments, four types of optical frequency combs having a width of 0.125 mm, 0.5 mm, 1 mm, and 2 mm were passed according to JIS K7374:2000. Image sharpness is measured and the sum C s is calculated. Then, the average value of the 20 samples was set as the sum C s of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

A1-3.霧度 A1-3. Haze

使用霧度計(HM-150，村上色彩技術研究所製造)，依據JIS K-7136：2000對上述「A1-2」中所製作之各樣品之霧度(整體霧度)進行測量。然後，將20個樣品之平均值設為各實施例及比較例之霧度。光入射面係設為塑膠膜側。 The haze (total haze) of each sample prepared in the above "A1-2" was measured in accordance with JIS K-7136:2000 using a haze meter (HM-150, manufactured by Murakami Color Research Laboratory). Then, the average value of the 20 samples was set to the haze of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

A1-4.摩擦係數 A1-4. Coefficient of friction

使用新東科學公司製造之商品名HEIDON-14DR，於一定負載單程之摩擦測量模式下藉由以下之方法測量靜摩擦係數(μs)及動摩擦係數(μk)，算出μk/μs。對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs之平均值設為各實施例及比較例之μk/μs。關於測量時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。摩擦係數之測量間隔係設為0.02秒。再者，於測量開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Using the trade name HEIDON-14DR manufactured by Shinto Scientific Co., the static friction coefficient (μs) and the dynamic friction coefficient (μk) were measured by the following method in a single-pass friction measurement mode to calculate μk/μs. The measurement was performed once for each of 20 samples, and μk/μs of each sample was calculated, and the average value of μk/μs of 20 samples was set to μk/μs of each of the examples and the comparative examples. Regarding the environment at the time of measurement, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. The measurement interval of the coefficient of friction was set to 0.02 seconds. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the measurement.

如圖7所示般，將下述之觸控面板筆A1或A2以60度之角度接觸觸控 面板筆用書寫片之樹脂層側之表面，併用保持器進行固定。於保持器上部之基座上載置100g之砝碼，向觸控面板筆施加垂直負載100gf。於施加負載之狀態下將固定了書寫片之可動台以14mm/秒之速度向可動台與觸控面板筆所成之角的鈍角方向側(圖7之左側)移動。對移動了單程40mm長度時之該筆之移動方向之靜摩擦係數(μs)及動摩擦係數(μk)進行測量。若μk/μs為0.30≦μk/μs≦0.58，則表示靜摩擦係數與動摩擦係數之平衡性良好，而停止書寫一瞬後再開始書寫時之書寫感良好。 As shown in FIG. 7, the touch panel pen A1 or A2 described below is touched at an angle of 60 degrees. The surface of the resin layer side of the writing pad of the panel pen is fixed by a holder. A weight of 100 g was placed on the base of the upper portion of the holder, and a vertical load of 100 gf was applied to the touch panel pen. The movable table to which the writing piece is fixed is moved at a speed of 14 mm/sec toward the obtuse angle side (the left side in FIG. 7) formed by the corner of the movable table and the touch panel pen. The static friction coefficient (μs) and the dynamic friction coefficient (μk) of the moving direction of the pen when the length of one stroke of 40 mm was moved were measured. If μk/μs is 0.30≦μk/μs≦0.58, it means that the balance between the static friction coefficient and the dynamic friction coefficient is good, and the writing feeling is good when writing is stopped for a while.

<觸控面板筆A1> <Touch Panel Pen A1>

附觸摸筆之3色鋼珠筆(三菱鉛筆股份有限公司製造，商品名：JETSTREAM筆尖)；筆尖及軸之構造體之表觀楊氏模數：0.002GPa(2.0×106N/m2)；筆尖之直徑：5mm；筆尖之剖面曲線的算術平均高度Pa：100μm；上述式(i)之X：0.5MN/m 3-color steel ball pen with touch pen (manufactured by Mitsubishi Pencil Co., Ltd., trade name: JETSTREAM nib); apparent Young's modulus of the structure of nib and shaft: 0.002 GPa (2.0 × 10 6 N/m 2 ); Diameter of the nib: 5 mm; arithmetic mean height Pa of the profile of the nib: 100 μm; X of the above formula (i): 0.5 MN/m

<觸控面板筆A2> <Touch Panel Pen A2>

東芝股份有限公司製造，商品名：主動靜電筆IPCZ131A；筆尖及軸之構造體之表觀楊氏模數：1.5GPa(1.5×109N/m2)；筆尖之直徑：1.6mm；筆尖之剖面曲線的算術平均高度Pa：100μm；上述式(i)之X：38.4MN/m Manufactured by Toshiba Co., Ltd., trade name: Active electrostatic pen IPCZ131A; Apparent Young's modulus of nib and shaft structure: 1.5GPa (1.5×10 9 N/m 2 ); diameter of nib: 1.6mm; nib The arithmetic mean height Pa of the profile curve is 100 μm; X of the above formula (i): 38.4 MN/m

A1-5.書寫感 A1-5. Writing sense

將觸控面板筆用書寫片之與樹脂層側之面相反側之面經由東麗公司製造之光學透明黏著片(厚度100μm)貼合於玻璃板，使用上述觸控面板筆A1及A2，而評價書寫感。將開始書寫時及開始書寫以後之書寫感良好者設為2分，將開始書寫時及開始書寫以後中之任一者之書寫感欠佳者設為1 分，將開始書寫時及開始書寫以後之書寫感均欠佳者設為0分，由20人進行評價。將20人之平均分為1.6分以上者設為A，將1.0分以上且未達1.6分者設為B，將未達1.0分者設為C。 The surface of the touch panel pen writing blade opposite to the resin layer side is bonded to the glass plate via an optically transparent adhesive sheet (thickness: 100 μm) manufactured by Toray Industries, and the touch panel pens A1 and A2 are used. Evaluation of writing sense. For those who have a good writing feeling at the start of writing and after starting writing, set the score to 2, and set the writing feeling at the beginning of writing and after starting writing to 1 The score was set to 0 when the writing was started and the writing was not good, and 20 people evaluated it. The average score of 20 people is 1.6 points or more, A is set, the score of 1.0 points or more and less than 1.6 points is set to B, and those who do not reach 1.0 points are set to C.

關於評價時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。再者，於評價開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Regarding the environment at the time of evaluation, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the evaluation.

A2.觸控面板筆用書寫片之製作 A2. Making of touch panel pen writing piece

[實施例A1] [Example A1]

將下述配方之第一樹脂層塗佈液A1以乾燥後之厚度成為3μm之方式塗佈於塑膠膜(PET膜，厚度80μm)上並進行乾燥，進行紫外線照射而形成第一樹脂層。繼而，將下述配方之第二樹脂層塗佈液A1以乾燥後之厚度成為2μm之方式塗佈於第一樹脂層上並進行乾燥，進行紫外線照射而形成第二樹脂層，而獲得觸控面板筆用書寫片。 The first resin layer coating liquid A1 of the following formulation was applied onto a plastic film (PET film, thickness: 80 μm) so as to have a thickness of 3 μm after drying, and dried to form a first resin layer by ultraviolet irradiation. Then, the second resin layer coating liquid A1 of the following formulation was applied onto the first resin layer so as to have a thickness of 2 μm after drying, and dried, and ultraviolet rays were irradiated to form a second resin layer, thereby obtaining a touch. Panel pen writing piece.

<第一樹脂層塗佈液A1> <First resin layer coating liquid A1>

<第二樹脂層塗佈液A1> <Second resin layer coating liquid A1>

[實施例A2] [Example A2]

將塑膠膜變更為厚度40μm之TAC，將第一樹脂層塗佈液A1變更為下述配方之第一樹脂層塗佈液A2，將第一樹脂層之膜厚變更為6μm，將第二樹脂層塗佈液A1變更為下述配方之第二樹脂層塗佈液A2，將第二樹脂層之厚度變更為0.1μm，除此以外，以與實施例A1相同之方式獲得觸控面板筆用書寫片。 The plastic film was changed to a TAC having a thickness of 40 μm, and the first resin layer coating liquid A1 was changed to the first resin layer coating liquid A2 of the following formulation, and the film thickness of the first resin layer was changed to 6 μm, and the second resin was used. The touch panel pen was obtained in the same manner as in Example A1 except that the layer coating liquid A1 was changed to the second resin layer coating liquid A2 of the following formulation, and the thickness of the second resin layer was changed to 0.1 μm. Writing piece.

<第一樹脂層塗佈液A2> <First resin layer coating liquid A2>

<第二樹脂層塗佈液A2> <Second resin layer coating liquid A2>

[實施例A3] [Example A3]

將塑膠膜變更為厚度60μm之TAC，將第一樹脂層塗佈液A1變更為下述配方之第一樹脂層塗佈液A3，將第一樹脂層之厚度變更為5μm，除此以外，以與實施例A2相同之方式獲得觸控面板筆用書寫片 The plastic film was changed to a TAC having a thickness of 60 μm, and the first resin layer coating liquid A1 was changed to the first resin layer coating liquid A3 of the following formulation, and the thickness of the first resin layer was changed to 5 μm, and A touch panel pen writing piece is obtained in the same manner as in Embodiment A2.

<第一樹脂層塗佈液A3> <First resin layer coating liquid A3>

[比較例A1] [Comparative Example A1]

將塑膠膜變更為厚度80μm之TAC，將第一樹脂層塗佈液A1變更為下述配方之第一樹脂層塗佈液A4，將第一樹脂層之厚度變更為8μm，且不形成第二樹脂層，除此以外，以與實施例A1相同之方式獲得觸控面板筆用書寫片。 The plastic film was changed to TAC having a thickness of 80 μm, and the first resin layer coating liquid A1 was changed to the first resin layer coating liquid A4 of the following formulation, and the thickness of the first resin layer was changed to 8 μm, and the second layer was not formed. A touch panel for a touch panel pen was obtained in the same manner as in Example A1 except for the resin layer.

<第一樹脂層塗佈液A4> <First resin layer coating liquid A4>

(丙二醇單甲醚乙酸酯) (propylene glycol monomethyl ether acetate)

[比較例A2] [Comparative Example A2]

將第一樹脂層塗佈液A1變更為下述配方之第一樹脂層塗佈液A5，將第一樹脂層之厚度變更為3μm，且不形成第二樹脂層，除此以外，以與實施例A1相同之方式獲得觸控面板筆用書寫片。 The first resin layer coating liquid A1 was changed to the first resin layer coating liquid A5 of the following formulation, and the thickness of the first resin layer was changed to 3 μm, and the second resin layer was not formed. In the same manner as in Example A1, a writing sheet for a touch panel pen was obtained.

<第一樹脂層塗佈液A5> <First resin layer coating liquid A5>

[比較例A3] [Comparative Example A3]

將塑膠膜變更為厚度40μm之TAC，將第一樹脂層塗佈液A1變更為下述配方之第一樹脂層塗佈液A6，將第一樹脂層之厚度變更為5μm，且 不形成第二樹脂層，除此以外，以與實施例A1相同之方式獲得觸控面板筆用書寫片。 The plastic film was changed to a TAC having a thickness of 40 μm, and the first resin layer coating liquid A1 was changed to the first resin layer coating liquid A6 of the following formulation, and the thickness of the first resin layer was changed to 5 μm. A touch panel for a touch panel pen was obtained in the same manner as in Example A1 except that the second resin layer was not formed.

<第一樹脂層塗佈液A6> <First resin layer coating liquid A6>

自表1之結果可明確，實施例A1~A3之觸控面板筆用書寫片於使用上述式(i)之X值為500MN/m以下之觸控面板筆作為觸控面板筆時，自開始書寫直至書寫結束之書寫感良好。又，實施例A1~A3之觸控面板筆用書寫片係由於μk/μs為0.30≦μk/μs≦0.58，故而靜摩擦係數與動摩擦係數之平衡性良好，而停止書寫一瞬後再開始書寫時之書寫感良好者。 It can be clarified from the results of Table 1 that the touch panel pen writing sheets of the embodiments A1 to A3 are used as the touch panel pens with the X value of 500 MN/m or less of the above formula (i) as the touch panel pen. The writing is good until the end of writing. Moreover, in the touch panel pen for the embodiments A1 to A3, since the μk/μs is 0.30 ≦μk/μs ≦ 0.58, the balance between the static friction coefficient and the dynamic friction coefficient is good, and when the writing is stopped, the writing is started. A good sense of writing.

A3.觸控面板之製作 A3. Production of touch panel

於實施例A1~A3及比較例A1~A3之觸控面板筆用書寫片之基材側之面利用濺鍍法形成厚度20nm之ITO導電性膜，而製成上部電極板。繼而，於厚度1mm之強化玻璃板之一面利用濺鍍法形成厚度約20nm之ITO之導電性膜，而製成下部電極板。繼而，藉由網版印刷法將作為間隔片用塗佈 液之游離輻射硬化型樹脂(Dot Cure TR5903：太陽油墨公司)點狀地印刷於具有下部電極板之導電性膜之面後，利用高壓水銀燈照射紫外線，並使直徑50μm、高度8μm之間隔片以1mm之間隔排列。 An ITO conductive film having a thickness of 20 nm was formed on the surface of the substrate side of the writing sheet for touch panel pens of Examples A1 to A3 and Comparative Examples A1 to A3 by sputtering to form an upper electrode plate. Then, a conductive film of ITO having a thickness of about 20 nm was formed by sputtering on one surface of a tempered glass plate having a thickness of 1 mm to form a lower electrode plate. Then, it will be coated as a spacer by screen printing. The liquid free radiation curable resin (Dot Cure TR5903: Sun Ink Co., Ltd.) was spot-printed on the surface of the conductive film having the lower electrode plate, and then irradiated with ultraviolet rays by a high pressure mercury lamp to form a spacer having a diameter of 50 μm and a height of 8 μm. Arranged at intervals of 1 mm.

繼而，使上部電極板與下部電極板以使導電性膜彼此對向之方式進行配置，利用厚度30μm、寬度3mm之雙面膠帶將邊緣接著，而製作實施例A1~A3及比較例A1~A3之電阻膜式觸控面板。 Then, the upper electrode plate and the lower electrode plate were placed so that the conductive films faced each other, and the edges were bonded by a double-sided tape having a thickness of 30 μm and a width of 3 mm, and Examples A1 to A3 and Comparative Examples A1 to A3 were produced. Resistive film type touch panel.

用上述觸控面板筆A1~A2於實施例A1~A3及比較例A1~A3之電阻膜式觸控面板上進行書寫，結果各觸控面板筆之書寫感之評價係與表1相同。 The touch panel pens A1 to A2 were used for writing on the resistive film type touch panels of the embodiments A1 to A3 and the comparative examples A1 to A3. As a result, the evaluation of the writing feeling of each touch panel pen was the same as that of Table 1.

又，將實施例A1~A3及比較例A1~A3之電阻膜式觸控面板載置於市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)上，利用目視對圖像進行評價，結果實施例A1~A3之觸控面板係可抑制超高清顯示元件之解像度降低者。另一方面，比較例A1~A3之觸控面板係無法抑制超高清顯示元件之解像度降低者。 Moreover, the resistive touch panels of the embodiments A1 to A3 and the comparative examples A1 to A3 are placed on a commercially available ultra high definition liquid crystal display device (a smart phone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi) In the above, the images were evaluated by visual observation. As a result, the touch panels of Examples A1 to A3 can suppress the resolution reduction of the ultra high definition display elements. On the other hand, the touch panel of Comparative Examples A1 to A3 cannot suppress the resolution reduction of the ultra high definition display element.

A4.顯示裝置之製作 A4. Production of display device

將實施例A1~A3及比較例A1~A3之觸控面板筆用書寫片與市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)經由透明黏著劑(東麗公司製造之光學透明黏著片，厚度100μm)進行貼合，而製作實施例A1~A3及比較例A1~A3之顯示裝置。再者，於貼合時，使觸控面板筆用書寫片基材側之面朝向顯示元件側。 The touch panel pen writing sheets of the embodiments A1 to A3 and the comparative examples A1 to A3 and the commercially available ultra high definition liquid crystal display device (smartphone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi) are transparent A display device of Examples A1 to A3 and Comparative Examples A1 to A3 was produced by laminating an adhesive (optical transparent adhesive sheet manufactured by Toray Industries, thickness: 100 μm). Further, at the time of bonding, the surface of the touch panel pen writing blade base material side faces the display element side.

用上述觸控面板筆A1~A2於實施例A1~A3及比較例A1~A3之顯示裝置上進行書寫，結果各觸控面板筆之書寫感之評價係與表1相同。 The touch panel pens A1 to A2 were used for writing on the display devices of the embodiments A1 to A3 and the comparative examples A1 to A3. As a result, the evaluation of the writing feeling of each of the touch panel pens was the same as that of Table 1.

又，利用目視對實施例A1~A3及比較例A1~A3之顯示裝置之影像進行評價，結果實施例A1~A3之顯示裝置係可抑制超高清顯示元件之解像度降低者。另一方面，比較例A1~A3之顯示裝置係無法抑制超高清顯示元件之解像度降低者。 Further, the images of the display devices of Examples A1 to A3 and Comparative Examples A1 to A3 were visually evaluated. As a result, the display devices of Examples A1 to A3 were able to suppress the reduction in the resolution of the ultra high definition display element. On the other hand, in the display devices of Comparative Examples A1 to A3, it was not possible to suppress the decrease in the resolution of the ultra high definition display element.

[參考例A1~A6] [Reference Example A1~A6]

針對實施例A1~A3及比較例A1~A3中所製作之觸控面板筆用書寫片使用下述之觸控面板筆A3，利用與上述相同之方法進行μk/μs之測量及書寫感之評價。將結果示於表2。 For the touch panel pen writing sheets produced in the embodiments A1 to A3 and the comparative examples A1 to A3, the following touch panel pen A3 was used, and the measurement of the μk/μs and the evaluation of the writing feeling were performed by the same method as described above. . The results are shown in Table 2.

<觸控面板筆A3> <Touch Panel Pen A3>

Adonit公司製造，商品名：Jot Mini；筆尖及軸之構造體之表觀楊氏模數：0.1GPa(1.0×108N/m2)；筆尖之直徑：5.0mm；筆尖之剖面曲線的算術平均高度Pa：1.0μm；上述式(i)之X：2,500MN/m Manufactured by Adonit, trade name: Jot Mini; Apparent Young's modulus of nib and shaft structure: 0.1GPa (1.0×10 8 N/m 2 ); diameter of nib: 5.0mm; arithmetic of profile curve of nib Average height Pa: 1.0 μm; X of the above formula (i): 2,500 MN/m

自表2之結果可確認如下情況：實施例A1~A3之觸控面板筆用書寫片有於使用上述式(i)之X值超過500MN/m之觸控面板筆(筆A3)作為觸控面板筆時，書寫感並不良好之傾向。又，自表1及表2之結果可確認如下情況：滿足條件(A1)及(A2)之觸控面板筆用書寫片並不適合上述式(i)之X值超過500MN/m之觸控面板筆(難以密接於書寫片 之筆)用書寫片，另一方面，適合上述式(i)之X值為500MN/m以下之觸控面板筆(容易密接於書寫片之筆)用書寫片。 From the results of Table 2, it can be confirmed that the touch panel pen writing sheets of the embodiments A1 to A3 have the touch panel pen (pen A3) having the X value of the above formula (i) exceeding 500 MN/m as the touch. When the panel pen is used, the writing feeling is not good. Further, from the results of Tables 1 and 2, it can be confirmed that the touch panel pen writing sheets satisfying the conditions (A1) and (A2) are not suitable for the touch panel of the above formula (i) having an X value exceeding 500 MN/m. Pen (hard to close to the writing piece In the case of a writing sheet, a writing sheet for a touch panel pen (a pen that is easily attached to a writing sheet) having an X value of 500 MN/m or less in the above formula (i) is suitable.

<實施形態B之實施例> <Embodiment of Embodiment B>

B1.測量及評價 B1. Measurement and evaluation

針對實施例及比較例中所製作之觸控面板筆用書寫片，進行以下之測量及評價。將結果示於表3。 The following measurement and evaluation were performed on the writing sheets for the touch panel pen produced in the examples and the comparative examples. The results are shown in Table 3.

B1-1.表面形狀測量 B1-1. Surface shape measurement

將實施例及比較例之觸控面板用書寫片切割成10cm見方。切割部位係利用目視確認沒有塵埃或損傷等異常點後，自隨機部位揀選。將切割出之表面構件經由東麗公司製造之光學透明黏著片(折射率：1.47，厚度100μm)貼合於長10cm×寬10cm尺寸之黑色板(可樂麗公司製造，商品名：CosmoGrass編號：DFA502K，厚度2.0mm)而獲得樣品，準備該樣品20個。 The writing sheets for the touch panel of the examples and the comparative examples were cut into 10 cm squares. The cut portion was visually confirmed to have no abnormal points such as dust or damage, and was picked from a random portion. The cut surface member was bonded to a black plate having a length of 10 cm × a width of 10 cm by an optically transparent adhesive sheet (refractive index: 1.47, thickness: 100 μm) manufactured by Toray Industries, Inc. (manufactured by Kuraray Co., Ltd., trade name: CosmoGrass No.: DFA502K) A sample was obtained with a thickness of 2.0 mm), and 20 samples were prepared.

使用表面粗糙度測量器(型號：SE-3400/小阪研究所股份有限公司製造)，以成為樣品固定且密接於測量臺上之狀態之方式進行設置後，藉由下述之測量條件，針對下述之測量項目，測量各樣品之樹脂層側之表面形狀。然後，將20個樣品之平均值設為各實施例及比較例之Rz0.8、Rp0.8、Psk、Ptm、S2.5及Ra0.8。將結果示於表3。 Using a surface roughness measuring device (model: SE-3400/manufactured by Kosei Research Co., Ltd.), the sample is set so as to be in a state of being fixed to the measuring table, and the following measurement conditions are used. The measurement items described were measured for the surface shape of the resin layer side of each sample. Then, the average value of the 20 samples was defined as Rz 0.8 , Rp 0.8 , Psk, Ptm, S 2.5 and Ra 0.8 of each of the examples and the comparative examples. The results are shown in Table 3.

<測量條件> <Measurement conditions>

[表面粗糙度檢測部之觸針] [The stylus of the surface roughness detecting section]

小阪研究所公司製造之商品名SE2555N(前端曲率半徑：2μm，頂角：90度，材質：金剛石) The trade name SE2555N manufactured by Kosaka Research Co., Ltd. (front end radius of curvature: 2μm, apex angle: 90 degrees, material: diamond)

[表面粗糙度測量器之測量條件] [Measurement conditions of surface roughness measuring device]

‧Rz0.8、Rp0.8、S2.5及Ra0.8之評價長度：截止值λc之5倍 ‧ Rz 0.8 , Rp 0.8 , S 2.5 and Ra 0.8 evaluation length: 5 times the cutoff value λc

‧Rz0.8、Rp0.8、S2.5及Ra0.8之預備長度：截止值λc之2倍 ‧Rz 0.8 , Rp 0.8 , S 2.5 and Ra 0.8 preparation length: 2 times the cutoff value λc

‧觸針之輸送速度：0.5mm/s ‧Needle delivery speed: 0.5mm/s

‧縱向倍率：2000倍 ‧ Vertical magnification: 2000 times

‧橫向倍率：10倍 ‧ Horizontal magnification: 10 times

‧滑動墊木：不使用(未接觸測量面) ‧Sliding mat: not used (not touching the measuring surface)

‧截止濾波器種類：高斯 ‧ Cutoff filter type: Gauss

‧死帶等級：10% ‧ Dead band rating: 10%

‧tp/PC曲線：普通 ‧tp/PC curve: ordinary

<測量項目> <Measurement item>

‧將截止值0.8mm之JIS B0601：2001之最大高度粗糙度設為Rz0.8，將截止值0.8mm之JIS B0601：2001之粗糙度曲線之最大山高設為Rp0.8時之Rp0.8/Rz0.8 The cutoff value of 0.8mm ‧ JIS B0601: 2001 of the maximum height roughness to Rz 0.8, the cutoff value of 0.8mm JIS B0601: 2001 of the maximum mountain roughness curve Rp 0.8 is set high when the Rp 0.8 / Rz 0.8

‧測量區間1mm中之剖面曲線的偏斜度Psk。截止值為0。 ‧ Measure the skewness Psk of the profile curve in 1 mm. The cutoff value is 0.

‧將單位測量區間設為1mm、將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt時之5個測量區間之Pt的平均值Ptm。截止值為0。 ‧ Set the unit measurement interval to 1 mm, set the maximum height of the profile in the unit measurement section to Pp, and set the maximum valley depth of the profile curve in the unit measurement section to Pv, and set the sum of Pp and Pv to The average value Ptm of Pt of the five measurement intervals at the maximum profile height Pt of the profile curve in the unit measurement section. The cutoff value is 0.

‧截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5 ‧ cutoff value of 2.5mm JIS B0601: 1994 Peak of the local average spacing S 2.5

‧截止值0.8mm之JIS B0601：2001之算術平均粗糙度Ra0.8 ‧The arithmetic mean roughness Ra 0.8 of JIS B0601:2001 with a cutoff value of 0.8 mm

B1-2.霧度 B1-2. Haze

準備將實施例及比較例之觸控面板用書寫片切割成5cm見方之樣品各20個。20個部位係利用目視確認沒有塵埃或損傷等異常點後，自隨機部位揀選。 It is prepared to cut the writing sheet for the touch panel of the examples and the comparative examples into 20 samples each of 5 cm square. The 20 parts were visually confirmed to have no abnormal points such as dust or damage, and were picked from random parts.

使用霧度計(HM-150，村上色彩技術研究所製造)，依據JIS K-7136：2000對各樣品之霧度(整體霧度)進行測量。然後，將20個樣品之平均值設為各實施例及比較例之霧度。光入射面係設為塑膠膜側。 The haze (total haze) of each sample was measured in accordance with JIS K-7136:2000 using a haze meter (HM-150, manufactured by Murakami Color Research Institute). Then, the average value of the 20 samples was set to the haze of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

B1-3.透過圖像清晰度 B1-3. Through image clarity

使用Suga Test Instruments公司製造之圖像解析度測量器(商品名：ICM-1T)，依據JIS K7374：2000對上述「B1-2」中所製作之各樣品之通過寬度0.125mm、0.5mm、1mm及2mm之光頻梳之4種透過圖像清晰度進行測量，並算出總和Cs。然後，將20個樣品之平均值設為各實施例及比較例之總和Cs。光入射面係設為塑膠膜側。 Using the image resolution measuring instrument (trade name: ICM-1T) manufactured by Suga Test Instruments, the passing width of each sample prepared in the above "B1-2" according to JIS K7374:2000 was 0.125 mm, 0.5 mm, 1 mm. And 4 kinds of 2mm optical frequency combs are measured by image sharpness, and the sum C s is calculated. Then, the average value of the 20 samples was set as the sum C s of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

B1-4.摩擦係數 B1-4. Coefficient of friction

使用新東科學公司製造之商品名HEIDON-14DR，於一定負載單程之摩擦測量模式下藉由以下之方法測量靜摩擦係數(μs)及動摩擦係數(μk)，算出μk/μs。對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs之平均值設為各實施例及比較例之μk/μs。關於測量時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。摩擦係數之測量間隔係設為0.02秒。再者，於測量開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Using the trade name HEIDON-14DR manufactured by Shinto Scientific Co., the static friction coefficient (μs) and the dynamic friction coefficient (μk) were measured by the following method in a single-pass friction measurement mode to calculate μk/μs. The measurement was performed once for each of 20 samples, and μk/μs of each sample was calculated, and the average value of μk/μs of 20 samples was set to μk/μs of each of the examples and the comparative examples. Regarding the environment at the time of measurement, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. The measurement interval of the coefficient of friction was set to 0.02 seconds. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the measurement.

如圖7所示般，將下述之觸控面板筆B1或B2以60度之角度接觸觸控面板筆用書寫片之樹脂層側之表面，併用保持器進行固定。於保持器上部 之基座上載置100g之砝碼，向觸控面板筆施加垂直負載100gf。於施加負載之狀態下將固定了書寫片之可動台以14mm/秒之速度向可動台與觸控面板筆所成之角的鈍角方向側(圖7之左側)移動。對移動了單程40mm長度時之該筆之移動方向之靜摩擦係數(μs)及動摩擦係數(μk)進行測量。若μk/μs為0.30≦μk/μs≦0.58，則表示靜摩擦係數與動摩擦係數之平衡性良好，而停止書寫一瞬後再開始書寫時之書寫感良好。 As shown in FIG. 7, the touch panel pen B1 or B2 described below is brought into contact with the surface of the resin layer side of the touch panel pen writing sheet at an angle of 60 degrees, and is fixed by a holder. On the upper part of the holder A weight of 100 g is placed on the base, and a vertical load of 100 gf is applied to the touch panel pen. The movable table to which the writing piece is fixed is moved at a speed of 14 mm/sec toward the obtuse angle side (the left side in FIG. 7) formed by the corner of the movable table and the touch panel pen. The static friction coefficient (μs) and the dynamic friction coefficient (μk) of the moving direction of the pen when the length of one stroke of 40 mm was moved were measured. If μk/μs is 0.30≦μk/μs≦0.58, it means that the balance between the static friction coefficient and the dynamic friction coefficient is good, and the writing feeling is good when writing is stopped for a while.

<觸控面板筆B1> <Touch Panel Pen B1>

三星電子公司製造之商品名「S Pen SCL24KKA」；筆尖及軸之構造體之表觀楊氏模數：1.0GPa(1.0×109N/m2)；筆之直徑：0.5mm；筆尖之剖面曲線的算術平均高度Pa：0.1μm；上述式(i)之X：2,500MN/m The brand name "S Pen SCL24KKA" manufactured by Samsung Electronics Co., Ltd.; the apparent Young's modulus of the structure of the nib and the shaft: 1.0GPa (1.0×10 9 N/m 2 ); the diameter of the pen: 0.5mm; the profile of the nib The arithmetic mean height Pa of the curve: 0.1 μm; X of the above formula (i): 2,500 MN/m

<觸控面板筆B2> <Touch Panel Pen B2>

任天堂股份有限公司製造之商品名「DS專用觸摸筆NTR-004」；筆尖及軸之構造體之表觀楊氏模數：2.0GPa(2.0×109N/m2)；筆尖之直徑：2.0mm；筆尖之剖面曲線的算術平均高度Pa：0.1μm；上述式(i)之X：80,000MN/m The product name "DS special touch pen NTR-004" manufactured by Nintendo Co., Ltd.; the apparent Young's modulus of the structure of the nib and the shaft: 2.0GPa (2.0×10 9 N/m 2 ); the diameter of the nib: 2.0 Mm; arithmetic mean height Pa of the profile curve of the nib: 0.1 μm; X of the above formula (i): 80,000 MN/m

B1-5.書寫感 B1-5. Writing sense

將觸控面板筆用書寫片之與樹脂層側之面相反側之面經由東麗公司製造之光學透明黏著片(厚度100μm)貼合於玻璃板，使用上述觸控面板筆B1及B2，而評價書寫感。將開始書寫時及開始書寫以後之書寫感良好者設為2分，將開始書寫時及開始書寫以後中之任一者之書寫感欠佳者設為1分，將開始書寫時及開始書寫以後之書寫感均欠佳者設為0分，由20人進行評價。將20人之平均分為1.6分以上者設為A，將1.0分以上且未達1.6 分者設為B，將未達1.0分者設為C。 The surface of the touch panel pen writing blade opposite to the resin layer side is bonded to the glass plate via an optically transparent adhesive sheet (thickness: 100 μm) manufactured by Toray Industries, and the touch panel pens B1 and B2 are used. Evaluation of writing sense. When the writing is started and the writing is started, the writing feeling is good, and the writing feeling is set to 2 points. When the writing is started or after the writing is started, the writing feeling is not good, and the writing is started and the writing is started. Those who have a poor sense of writing are set to 0 points and evaluated by 20 people. The average score of 20 people is 1.6 or more, and the score is 1.0 or more and less than 1.6. The score is set to B, and the one that is less than 1.0 is set to C.

關於評價時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。再者，於評價開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Regarding the environment at the time of evaluation, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the evaluation.

B1-6.防眩性 B1-6. Anti-glare

於螢光燈之照明下(書寫面之明亮度：500勒克司)進行B1-5之書寫感之評價時，將完全不在意照明之映入者設為2分，將照明少許映入但未對書寫造成障礙者設為1分，將照明強烈映入且對書寫造成障礙者設為0分，由20人進行評價。將20人之平均分為1.6分以上者設為A，將為1.0分以上且未達1.6分者設為B，將未達1.0分者設為C。 Under the illumination of the fluorescent lamp (the brightness of the writing surface: 500 lux), when the evaluation of the writing sense of B1-5 is performed, the person who does not care about the illumination is set to 2 points, and the illumination is slightly reflected but not For those who have caused an obstacle to writing, it is set to 1 point, and the illumination is strongly reflected and the writing is disabled as 0 points, and 20 people are evaluated. The average of 20 people divided into 1.6 points or more is set to A, the number of points of 1.0 points or more and less than 1.6 points is set to B, and those who do not reach 1.0 points are set to C.

B2.觸控面板筆用書寫片之製作 B2. Production of touch panel pen writing piece

[實施例B1] [Example B1]

將下述配方之樹脂層塗佈液B1以乾燥後之厚度成為5μm之方式塗佈於塑膠膜(厚度40μm三乙醯纖維素樹脂膜)上並進行乾燥，進行紫外線照射而形成樹脂層，而獲得觸控面板筆用書寫片。 The resin layer coating liquid B1 of the following formulation was applied onto a plastic film (thickness 40 μm triethylene cellulose resin film) so as to have a thickness of 5 μm after drying, and dried to form a resin layer by ultraviolet irradiation. Get the touch pad for the touch panel.

<樹脂層塗佈液B1> <Resin layer coating liquid B1>

[實施例B2] [Example B2]

將樹脂層塗佈液B1變更為下述配方之樹脂層塗佈液B2，將樹脂層之厚度變更為7μm，除此以外，以與實施例B1相同之方式獲得觸控面板筆用書寫片。 A touch panel pen writing sheet was obtained in the same manner as in Example B1 except that the resin layer coating liquid B1 was changed to the resin layer coating liquid B2 of the following formulation, and the thickness of the resin layer was changed to 7 μm.

<樹脂層塗佈液B2> <Resin layer coating liquid B2>

[比較例B1] [Comparative Example B1]

將樹脂層塗佈液B1變更為下述配方之樹脂層塗佈液B3，將樹脂層之厚度變更為6μm，且將下述配方之第二樹脂層塗佈液B1以乾燥後之厚度成為0.1μm之方式塗佈於樹脂層上並進行乾燥，進行紫外線照射而第二樹脂層，而獲得觸控面板筆用書寫片。 The resin layer coating liquid B1 was changed to the resin layer coating liquid B3 of the following formulation, and the thickness of the resin layer was changed to 6 μm, and the thickness of the second resin layer coating liquid B1 of the following formulation was 0.1 after drying. The μm was applied to the resin layer and dried, and the second resin layer was irradiated with ultraviolet rays to obtain a writing sheet for a touch panel pen.

<樹脂層塗佈液B3> <Resin layer coating liquid B3>

<第二樹脂層塗佈液B1> <Second resin layer coating liquid B1>

[比較例B2] [Comparative Example B2]

將樹脂層塗佈液B1變更為下述配方之樹脂層塗佈液B4，將樹脂層之厚度變更為3μm，除此以外，以與實施例B1相同之方式獲得觸控面板筆 用書寫片。 A touch panel pen was obtained in the same manner as in Example B1 except that the resin layer coating liquid B1 was changed to the resin layer coating liquid B4 of the following formulation, and the thickness of the resin layer was changed to 3 μm. Use a writing tablet.

<樹脂層塗佈液B4> <Resin layer coating liquid B4>

自表3之結果可明確，實施例B1~B2之觸控面板筆用書寫片於使用上述式(i)之X值超過500MN/m之觸控面板筆作為觸控面板筆時，自開始書寫直至書寫結束之書寫感良好。又，實施例B1~B2之觸控面板筆用書寫片係由於μk/μs為0.30≦μk/μs≦0.58，故而靜摩擦係數與動摩擦係數之平衡性良好，而停止書寫一瞬後再開始書寫時之書寫感良好者。又，實施例B1~B2之觸控面板筆用書寫片係防眩性亦優異者。 It can be clarified from the results of Table 3 that the touch panel pen writing sheets of the embodiments B1 to B2 are started to be written when the touch panel pen having the X value of the above formula (i) exceeding 500 MN/m is used as the touch panel pen. The writing feeling is good until the end of writing. Moreover, in the touch panel pen for the embodiments B1 to B2, since the μk/μs is 0.30 ≦μk/μs ≦ 0.58, the balance between the static friction coefficient and the dynamic friction coefficient is good, and when the writing is stopped, the writing is started. A good sense of writing. Further, the writing sheets for touch panel pens of Examples B1 to B2 are also excellent in anti-glare property.

B3.觸控面板之製作 B3. Production of touch panel

於實施例B1~B2及比較例B1~B2之觸控面板筆用書寫片之基材側之面利用濺鍍法形成厚度20nm之ITO導電性膜，而製成上部電極板。繼而，於厚度1mm之強化玻璃板之一面利用濺鍍法形成厚度約20nm之ITO之導電性膜，而製成下部電極板。繼而，藉由網版印刷法將作為間隔片用塗佈液之游離輻射硬化型樹脂(Dot Cure TR5903：太陽油墨公司)點狀地印刷於 具有下部電極板之導電性膜之面後，利用高壓水銀燈照射紫外線，並使直徑50μm、高度8μm之間隔片以1mm之間隔排列。 On the substrate side of the writing sheets of the touch panel pens of Examples B1 to B2 and Comparative Examples B1 to B2, an ITO conductive film having a thickness of 20 nm was formed by sputtering to form an upper electrode plate. Then, a conductive film of ITO having a thickness of about 20 nm was formed by sputtering on one surface of a tempered glass plate having a thickness of 1 mm to form a lower electrode plate. Then, the free radiation curable resin (Dot Cure TR5903: Sun Ink Co., Ltd.) as a coating liquid for a spacer is printed in dots by a screen printing method. After the surface of the conductive film having the lower electrode plate was irradiated with ultraviolet rays by a high-pressure mercury lamp, spacer sheets having a diameter of 50 μm and a height of 8 μm were arranged at intervals of 1 mm.

繼而，使上部電極板與下部電極板以使導電性膜彼此對向之方式進行配置，利用厚度30μm、寬度3mm之雙面膠帶將邊緣接著，而製作實施例B1~B2及比較例B1~B2之電阻膜式觸控面板。 Then, the upper electrode plate and the lower electrode plate were placed so that the conductive films faced each other, and the edges were bonded by a double-sided tape having a thickness of 30 μm and a width of 3 mm, and Examples B1 to B2 and Comparative Examples B1 to B2 were produced. Resistive film type touch panel.

用上述觸控面板筆B1~B2於實施例B1~B2及比較例B1~B2之電阻膜式觸控面板上進行書寫，結果各觸控面板筆之書寫感之評價係與表3相同。 The touch panel pens B1 to B2 were used for writing on the resistive film type touch panels of the embodiments B1 to B2 and the comparative examples B1 to B2. As a result, the evaluation of the writing feeling of each of the touch panel pens was the same as that of Table 3.

又，將實施例B1~B2及比較例B1~B2之電阻膜式觸控面板載置於市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)上，於螢光燈照明下利用目視對圖像進行評價，結果實施例B1~B2之觸控面板係防眩性較比較例B1之觸控面板優異，且與比較例B2之觸控面板相比，可抑制超高清顯示元件之解像度降低者。 Moreover, the resistive film type touch panels of the embodiments B1 to B2 and the comparative examples B1 to B2 are placed on a commercially available ultra high definition liquid crystal display device (a smart phone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi) The image was evaluated by visual inspection under fluorescent lighting. As a result, the touch panels of Examples B1 to B2 were superior to the touch panel of Comparative Example B1, and the touch panel of Comparative Example B2. In contrast, the resolution reduction of the ultra high definition display element can be suppressed.

B4.顯示裝置之製作 B4. Production of display device

將實施例B1~B2及比較例B1~B2之觸控面板筆用書寫片與市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)經由透明黏著劑進行貼合，而製作實施例B1~B2及比較例B1~B2之顯示裝置。再者，於貼合時，使觸控面板筆用書寫片基材側之面朝向顯示元件側。 The touch panel pen writing sheets of the embodiments B1 to B2 and the comparative examples B1 to B2 and the commercially available ultra high definition liquid crystal display device (smartphone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi) are transparent. The adhesives were bonded to each other to produce display devices of Examples B1 to B2 and Comparative Examples B1 to B2. Further, at the time of bonding, the surface of the touch panel pen writing blade base material side faces the display element side.

用上述觸控面板筆B1~B2於實施例B1~B2及比較例B1~B2之顯示裝置上進行書寫，結果各觸控面板筆之書寫感之評價係與表3相同。 The touch panel pens B1 to B2 were used for writing on the display devices of the embodiments B1 to B2 and the comparative examples B1 to B2. As a result, the evaluation of the writing feeling of each of the touch panel pens was the same as that of Table 3.

又，於螢光燈照明下利用目視對實施例B1~B2及比較例B1~B2之顯 示裝置之影像進行評價(評價面之明亮度：500勒克司)，結果實施例B1~B2之顯示裝置係防眩性較比較例B1之顯示裝置優異，且與比較例B2之顯示裝置相比，可抑制超高清顯示元件之解像度降低者。 Moreover, the visual observation of the examples B1 to B2 and the comparative examples B1 to B2 under the illumination of the fluorescent lamp The image of the display device was evaluated (brightness of the evaluation surface: 500 lux), and the display devices of Examples B1 to B2 were excellent in anti-glare property compared with the display device of Comparative Example B1, and compared with the display device of Comparative Example B2. It can suppress the resolution reduction of ultra high definition display elements.

[參考例B1~B4] [Reference Example B1~B4]

針對實施例B1~B2及比較例B1~B2中所製作之觸控面板筆用書寫片使用下述之觸控面板筆B3，利用與上述相同之方法進行μk/μs之測量及書寫感之評價。將結果示於表4。 For the touch panel pen writing sheets produced in the embodiments B1 to B2 and the comparative examples B1 to B2, the following touch panel pen B3 was used, and the measurement of the μk/μs and the evaluation of the writing feeling were performed by the same method as described above. . The results are shown in Table 4.

<觸控面板筆B3> <Touch Panel Pen B3>

附觸摸筆之3色鋼珠筆(三菱鉛筆股份有限公司製造，商品名：JETSTREAM筆尖)；筆尖及軸之構造體之表觀楊氏模數：0.002GPa(2.0×106N/m2)；筆尖之直徑：5.0mm；筆尖之剖面曲線的算術平均高度Pa：100μm；上述式(i)之X：0.5MN/m 3-color steel ball pen with touch pen (manufactured by Mitsubishi Pencil Co., Ltd., trade name: JETSTREAM nib); apparent Young's modulus of the structure of nib and shaft: 0.002 GPa (2.0 × 10 6 N/m 2 ); Diameter of the nib: 5.0 mm; arithmetic mean height Pa of the profile of the nib: 100 μm; X of the above formula (i): 0.5 MN/m

自表4之結果可確認如下情況：實施例B1~B2之觸控面板筆用書寫片有於使用上述式(i)之X值為500MN/m以下之觸控面板筆(筆B3)作為觸控面板筆時，書寫感並不良好之傾向。又，自表3及表4之結果可確認如下情況：滿足條件(B1)及(B2)之觸控面板筆用書寫片並不適合上述式(i)之X值為500MN/m以下之觸控面板筆(容易密接於書寫 片之筆)用書寫片，另一方面，適合上述式(i)之X值超過500MN/m之觸控面板筆(難以密接於書寫片之筆)用書寫片。 From the results of Table 4, it can be confirmed that the touch panel pen writing sheets of the embodiments B1 to B2 are touched by using the touch panel pen (pen B3) having the X value of the above formula (i) of 500 MN/m or less. When controlling the panel pen, the writing feeling is not good. Further, from the results of Tables 3 and 4, it can be confirmed that the touch panel pen writing sheets satisfying the conditions (B1) and (B2) are not suitable for the touch of the above formula (i) having an X value of 500 MN/m or less. Panel pen (easy to close to writing The tablet is made of a writing sheet, and on the other hand, a writing sheet for a touch panel pen (a pen that is difficult to be intimately attached to a writing sheet) having an X value of the above formula (i) exceeding 500 MN/m.

<實施形態C之實施例> <Example of Embodiment C>

C1.測量及評價 C1. Measurement and evaluation

針對實施例及比較例中所製作之觸控面板筆用書寫片，進行以下之測量及評價。將結果示於表5或表6。 The following measurement and evaluation were performed on the writing sheets for the touch panel pen produced in the examples and the comparative examples. The results are shown in Table 5 or Table 6.

C1-1.摩擦係數 C1-1. Coefficient of friction

使用新東科學公司製造之商品名HEIDON-14DR，於一定負載單程之摩擦測量模式下藉由以下之方法測量靜摩擦係數(μs)及動摩擦係數(μk)，算出μk/μs。將對20個樣品各測量1次時之平均值設為各實施例及比較例之μk、μs。又，對20個樣品各測量1次而算出各樣品之μk/μs，將20個樣品之μk/μs之平均值設為各實施例及比較例之μk/μs。關於測量時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。摩擦係數之測量間隔係設為0.02秒。再者，於測量開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Using the trade name HEIDON-14DR manufactured by Shinto Scientific Co., the static friction coefficient (μs) and the dynamic friction coefficient (μk) were measured by the following method in a single-pass friction measurement mode to calculate μk/μs. The average value when each of the 20 samples was measured once was set to μk and μs of each of the examples and the comparative examples. Further, the measurement was performed once for each of the 20 samples, and μk/μs of each sample was calculated, and the average value of μk/μs of the 20 samples was set to μk/μs of each of the examples and the comparative examples. Regarding the environment at the time of measurement, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. The measurement interval of the coefficient of friction was set to 0.02 seconds. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the measurement.

如圖7所示般，將下述之觸控面板筆C1~C4以60度之角度接觸觸控面板筆用書寫片之樹脂層側之表面，併用保持器進行固定。於保持器上部之基座上載置100g之砝碼，向觸控面板筆施加垂直負載100gf。於施加負載之狀態下將固定了書寫片之可動台以14mm/秒之速度向可動台與觸控面板筆所成之角的鈍角方向側(圖7之左側)移動。對掃描了單程40mm長度時之該筆之掃描方向之靜摩擦係數(μs)及動摩擦係數(μk)進行測量。 As shown in FIG. 7, the touch panel pens C1 to C4 described below were brought into contact with the surface of the resin layer side of the touch panel pen writing sheet at an angle of 60 degrees, and fixed by a holder. A weight of 100 g was placed on the base of the upper portion of the holder, and a vertical load of 100 gf was applied to the touch panel pen. The movable table to which the writing piece is fixed is moved at a speed of 14 mm/sec toward the obtuse angle side (the left side in FIG. 7) formed by the corner of the movable table and the touch panel pen. The static friction coefficient (μs) and the dynamic friction coefficient (μk) of the scanning direction of the pen when the length of one stroke of 40 mm was scanned were measured.

<觸控面板筆C1> <Touch Panel Pen C1>

三星電子公司製造之商品名「S Pen SCL24KKA」；筆尖及軸之構造體之表觀楊氏模數：1.0GPa(1.0×109N/m2)；筆尖之直徑：0.5mm；筆尖之剖面曲線的算術平均高度Pa：0.1μm；上述式(i)之X：2,500MN/m The brand name "S Pen SCL24KKA" manufactured by Samsung Electronics Co., Ltd.; the apparent Young's modulus of the structure of the nib and the shaft: 1.0 GPa (1.0 × 10 9 N/m 2 ); the diameter of the nib: 0.5 mm; the profile of the nib The arithmetic mean height Pa of the curve: 0.1 μm; X of the above formula (i): 2,500 MN/m

<觸控面板筆C2> <Touch Panel Pen C2>

任天堂股份有限公司製造之商品名「DS專用觸摸筆NTR-004」；筆尖及軸之構造體之表觀楊氏模數：2.0GPa(2.0×109N/m2)；筆尖之直徑：2.0mm；筆尖之剖面曲線的算術平均高度Pa：0.1μm；上述式(i)之X：80,000MN/m The product name "DS special touch pen NTR-004" manufactured by Nintendo Co., Ltd.; the apparent Young's modulus of the structure of the nib and the shaft: 2.0GPa (2.0×10 9 N/m 2 ); the diameter of the nib: 2.0 Mm; arithmetic mean height Pa of the profile curve of the nib: 0.1 μm; X of the above formula (i): 80,000 MN/m

<觸控面板筆C3> <Touch Panel Pen C3>

附觸摸筆之3色鋼珠筆(三菱鉛筆股份有限公司製造，商品名：JETSTREAM筆尖)；筆尖及軸之構造體之表觀楊氏模數：0.002GPa(2.0×106N/m2)；筆尖之直徑：5.0mm；筆尖之剖面曲線的算術平均高度Pa：100μm；上述式(i)之X：0.5MN/m 3-color steel ball pen with touch pen (manufactured by Mitsubishi Pencil Co., Ltd., trade name: JETSTREAM nib); apparent Young's modulus of the structure of nib and shaft: 0.002 GPa (2.0 × 10 6 N/m 2 ); Diameter of the nib: 5.0 mm; arithmetic mean height Pa of the profile of the nib: 100 μm; X of the above formula (i): 0.5 MN/m

<觸控面板筆C4> <Touch Panel Pen C4>

東芝股份有限公司製造，商品名：主動靜電筆IPCZ131A；筆尖及軸之構造體之表觀楊氏模數：1.5GPa(1.5×109N/m2)；筆尖之直徑：1.6mm；筆尖之剖面曲線的算術平均高度Pa：100μm；上述式(i)之X：38.4 MN/m Manufactured by Toshiba Co., Ltd., trade name: Active electrostatic pen IPCZ131A; Apparent Young's modulus of nib and shaft structure: 1.5GPa (1.5×10 9 N/m 2 ); diameter of nib: 1.6mm; nib The arithmetic mean height Pa of the profile curve is 100 μm; X of the above formula (i): 38.4 MN/m

C1-2.書寫感 C1-2. Writing sense

將觸控面板筆用書寫片之與樹脂層側之面相反側之面經由東麗公司製造之光學透明黏著片(厚度100μm)貼合於玻璃板，使用上述觸控面板筆 C1~C4，而評價書寫感。將如下3種書寫感，即開始書寫時之書寫感、開始書寫以後之書寫感，及停止書寫一瞬後再開始書寫時之書寫感設為評價分數，將作為整體之書寫感良好者設為2分，將作為整體之書寫感普通者設為1分，將作為整體之書寫感欠佳者設為0分，由20人進行評價。將20人之平均分為1.6分以上者設為A，將1.0分以上且未達1.6分者設為B，將未達1.0分者設為C。 The surface of the touch panel pen writing blade opposite to the resin layer side is bonded to the glass plate via an optically transparent adhesive sheet (thickness: 100 μm) manufactured by Toray Industries, and the touch panel pen is used. C1~C4, and evaluate the sense of writing. The following three kinds of writing feelings, that is, the writing feeling at the start of writing, the writing feeling after starting writing, and the writing feeling when writing is stopped for a while, are set as evaluation scores, and the writing feeling as a whole is good as 2 In the case of the general writing, the overall writing feeling is set to 1 point, and the overall writing feeling as the whole is set to 0, and 20 people evaluate it. The average score of 20 people is 1.6 points or more, A is set, the score of 1.0 points or more and less than 1.6 points is set to B, and those who do not reach 1.0 points are set to C.

關於評價時之環境，溫度係設為23℃±5℃，濕度係設為50%±10%。再者，於評價開始前，將各樣品放置於23℃±5℃、濕度50%±10%之環境中10分鐘以上。 Regarding the environment at the time of evaluation, the temperature system was set to 23 ° C ± 5 ° C, and the humidity system was set to 50% ± 10%. Further, each sample was placed in an environment of 23 ° C ± 5 ° C and a humidity of 50% ± 10% for 10 minutes or more before the start of the evaluation.

C1-3.霧度 C1-3. Haze

準備將實施例及比較例之觸控面板用書寫片切割成5cm見方之樣品各20個。20個部位係利用目視確認沒有塵埃或損傷等異常點後，自隨機部位揀選。 It is prepared to cut the writing sheet for the touch panel of the examples and the comparative examples into 20 samples each of 5 cm square. The 20 parts were visually confirmed to have no abnormal points such as dust or damage, and were picked from random parts.

使用霧度計(HM-150，村上色彩技術研究所製造)，依據JIS K-7136：2000對各樣品之霧度(整體霧度)進行測量。然後，將20個樣品之平均值設為各實施例及比較例之霧度。光入射面係設為塑膠膜側。 The haze (total haze) of each sample was measured in accordance with JIS K-7136:2000 using a haze meter (HM-150, manufactured by Murakami Color Research Institute). Then, the average value of the 20 samples was set to the haze of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

C1-4.透過圖像清晰度 C1-4. Through image clarity

使用Suga Test Instruments公司製造之圖像解析度測量器(商品名：ICM-1T)，依據JIS K7374：2000對上述「C1-3」中所製作之各樣品之通過寬度0.125mm、0.5mm、1mm及2mm之光頻梳之4種透過圖像清晰度進行測量，並算出總和Cs。然後，將20個樣品之平均值設為各實施例及比較例之總和Cs。光入射面係設為塑膠膜側。 Using the image resolution measuring instrument (trade name: ICM-1T) manufactured by Suga Test Instruments, the passing width of each sample prepared in the above "C1-3" according to JIS K7374:2000 was 0.125 mm, 0.5 mm, 1 mm. And 4 kinds of 2mm optical frequency combs are measured by image sharpness, and the sum C s is calculated. Then, the average value of the 20 samples was set as the sum C s of each of the examples and the comparative examples. The light incident surface is set to the plastic film side.

C1-5.防眩性 C1-5. Anti-glare

於螢光燈之照明下(書寫面之明亮度：500勒克司)進行C1-2之書寫感之評價時，將完全不在意照明之映入者設為2分，將照明少許映入但未對書寫造成障礙者設為1分，將照明強烈映入且對書寫造成障礙者設為0分，由20人進行評價。將20人之平均分為1.6分以上者設為A，將為1.0分以上且未達1.6分者設為B，將未達1.0分者設為C。 Under the illumination of the fluorescent lamp (the brightness of the writing surface: 500 lux), when the evaluation of the writing sense of C1-2 is performed, the person who does not care about the illumination is set to 2 points, and the illumination is slightly reflected but not For those who have caused an obstacle to writing, it is set to 1 point, and the illumination is strongly reflected and the writing is disabled as 0 points, and 20 people are evaluated. The average of 20 people divided into 1.6 points or more is set to A, the number of points of 1.0 points or more and less than 1.6 points is set to B, and those who do not reach 1.0 points are set to C.

C2.觸控面板筆用書寫片之製作 C2. Production of touch panel pen writing sheet

[實驗例C1] [Experimental Example C1]

將下述配方之樹脂層塗佈液C1以乾燥後之厚度成為5μm之方式塗佈於塑膠膜(厚度40μm三乙醯纖維素樹脂膜)上並進行乾燥，進行紫外線照射而形成樹脂層，而獲得觸控面板筆用書寫片。 The resin layer coating liquid C1 of the following formulation was applied onto a plastic film (thickness 40 μm triethylene fluorene cellulose resin film) so as to have a thickness of 5 μm after drying, and dried to form a resin layer by ultraviolet irradiation. Get the touch pad for the touch panel.

<樹脂層塗佈液C1> <Resin layer coating liquid C1>

[實驗例C2] [Experimental Example C2]

將樹脂層塗佈液C1變更為下述配方之樹脂層塗佈液C2，將樹脂層之厚度變更為7μm，除此以外，以與實驗例C1相同之方式獲得觸控面板筆用書寫片。 A touch panel pen writing sheet was obtained in the same manner as in Experimental Example C1 except that the resin layer coating liquid C1 was changed to the resin layer coating liquid C2 of the following formulation, and the thickness of the resin layer was changed to 7 μm.

<樹脂層塗佈液C2> <Resin layer coating liquid C2>

[實驗例C3] [Experimental Example C3]

將樹脂層塗佈液C1變更為下述配方之樹脂層塗佈液C3，將樹脂層之厚度變更為6μm，且將下述配方之第二樹脂層塗佈液C1以乾燥後之厚度成為0.1μm之方式塗佈於樹脂層上並進行乾燥，進行紫外線照射而形成第二樹脂層，而獲得觸控面板筆用書寫片。 The resin layer coating liquid C1 was changed to the resin layer coating liquid C3 of the following formulation, and the thickness of the resin layer was changed to 6 μm, and the thickness of the second resin layer coating liquid C1 of the following formulation was 0.1 after drying. The πm method was applied to the resin layer, dried, and irradiated with ultraviolet rays to form a second resin layer, thereby obtaining a writing sheet for a touch panel pen.

<樹脂層塗佈液C3> <Resin layer coating liquid C3>

<第二樹脂層塗佈液C1> <Second resin layer coating liquid C1>

[實驗例C4] [Experimental Example C4]

將樹脂層塗佈液C1變更為下述配方之樹脂層塗佈液C4，將樹脂層之厚度變更為3μm，除此以外，以與實驗例C1相同之方式獲得觸控面板筆用書寫片。 A touch panel pen writing sheet was obtained in the same manner as in Experimental Example C1 except that the resin layer coating liquid C1 was changed to the resin layer coating liquid C4 of the following formulation, and the thickness of the resin layer was changed to 3 μm.

<樹脂層塗佈液C4> <Resin layer coating liquid C4>

如表5所示般，μk/μs顯示0.30以上且0.58以下之值之書寫片係書寫感之評價成為A或B。該情況表示：揀選μk/μs顯示0.30以上且0.58以下之值之書寫片係關係到書寫感良好之書寫片之揀選。又，筆C1~C4係全部種類不同者，因此表5之結果係表示如下情況：於使用任意之觸控面板筆之情形時，揀選μk/μs顯示0.30以上且0.58以下之值之書寫片係關係到書寫感良好之書寫片之揀選。 As shown in Table 5, the evaluation of the writing feeling of the writing sheet showing a value of 0.30 or more and 0.58 or less in μk/μs was A or B. In this case, it is indicated that the writing of the writing sheet in which the value of 0.30 or more and 0.58 or less is displayed in the selection of μk/μs is related to the selection of the writing sheet having a good writing feeling. Further, since the pens C1 to C4 are all of different types, the results of Table 5 indicate the case where, in the case of using any touch panel pen, a writing system in which μk/μs is displayed with a value of 0.30 or more and 0.58 or less is selected. It is related to the selection of writings with good writing.

又，關於實驗例C1及C2之觸控面板筆用書寫片，可確認對上述式(i)之X值超過500MN/m之觸控面板筆(筆C1及筆C2)之書寫感極為良好，並且防眩性良好。認為其原因在於：實驗例C1及C2之觸控面板筆用書寫 片由於樹脂層包含微米級粒子及奈米級無機超微粒子，故而於樹脂層之表面微小區域之凹凸及較大區域之凹凸混合存在而形成。 Moreover, with respect to the touch panel pen writing sheets of Experimental Examples C1 and C2, it was confirmed that the writing feeling of the touch panel pen (pen C1 and pen C2) having the X value of the above formula (i) exceeding 500 MN/m was extremely good. And the anti-glare property is good. The reason is considered to be: the test panel C1 and C2 touch panel pen writing Since the resin layer contains micron-sized particles and nano-sized inorganic ultrafine particles, it is formed by mixing irregularities on the surface of the resin layer and irregularities in a large area.

C3.觸控面板之製作 C3. Production of touch panel

於實驗例C1~C4之觸控面板筆用書寫片之基材側之面利用濺鍍法形成厚度20nm之ITO之導電性膜，而製成上部電極板。繼而，於厚度1mm之強化玻璃板之一面利用濺鍍法形成厚度約20nm之ITO之導電性膜，而製成下部電極板。繼而，藉由網版印刷法將作為間隔片用塗佈液之游離輻射硬化型樹脂(Dot Cure TR5903：太陽油墨公司)點狀地印刷於具有下部電極板之導電性膜之面後，利用高壓水銀燈照射紫外線，並使直徑50μm、高度8μm之間隔片以1mm之間隔排列。 On the substrate side of the writing sheet of the touch panel pen of Experimental Examples C1 to C4, a conductive film of ITO having a thickness of 20 nm was formed by sputtering to form an upper electrode plate. Then, a conductive film of ITO having a thickness of about 20 nm was formed by sputtering on one surface of a tempered glass plate having a thickness of 1 mm to form a lower electrode plate. Then, the free radiation curable resin (Dot Cure TR5903: Sun Ink Co., Ltd.), which is a coating liquid for a spacer, is dot-printed on the surface of the conductive film having the lower electrode plate by a screen printing method, and then a high voltage is used. The mercury lamp was irradiated with ultraviolet rays, and spacer sheets having a diameter of 50 μm and a height of 8 μm were arranged at intervals of 1 mm.

繼而，使上部電極板與下部電極板以使導電性膜彼此對向之方式進行配置，利用厚度30μm、寬度3mm之雙面膠帶將邊緣接著，而製作實驗例C1~C4之電阻膜式觸控面板。 Then, the upper electrode plate and the lower electrode plate were placed so that the conductive films faced each other, and the edges were bonded by a double-sided tape having a thickness of 30 μm and a width of 3 mm, thereby producing resistive film touches of Experimental Examples C1 to C4. panel.

用上述觸控面板筆C1~C4於實驗例C1~C4之電阻膜式觸控面板上進行書寫時，結果各觸控面板筆之書寫感之評價係與表5相同。其結果為，表示如下情況：於由觸控面板與觸控面板筆之組合所構成之觸控面板系統中，μk/μs顯示0.30以上且0.58以下之值之觸控面板系統係書寫感良好。 When the touch panel pens C1 to C4 were used for writing on the resistive film type touch panels of the experimental examples C1 to C4, the evaluation of the writing feeling of each touch panel pen was the same as that of Table 5. As a result, in the touch panel system including the combination of the touch panel and the touch panel pen, the touch panel system in which the value of 0.30 or more and 0.58 or less is displayed in μk/μs is good.

又，將實驗例C1~C4之電阻膜式觸控面板載置於市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)上，於螢光燈照明下利用目視評價圖像，結果實驗例C1~2之觸控面板係防眩性較實驗例C3之觸控面板優異，與實驗例C4之觸控面板相比，可抑制超高清顯示元件之解像度降低者。 Moreover, the resistive film type touch panels of the experimental examples C1 to C4 are placed on a commercially available ultra high definition liquid crystal display device (a smart phone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi), and fluorescently The image was evaluated by visual observation under the illumination of the lamp. As a result, the touch panel of the experimental example C1~2 was superior to the touch panel of the experimental example C3, and the ultra-high definition display element was suppressed as compared with the touch panel of the experimental example C4. The resolution is reduced.

C4.顯示裝置之製作 C4. Production of display device

將實驗例C1~C4之觸控面板筆用書寫片與市售之超高清液晶顯示裝置(夏普製造之智慧型手機，商品名：SH-03G，像素密度480ppi)經由透明黏著劑進行貼合，而製作實驗例C1~C4之顯示裝置。再者，於貼合時，使觸控面板筆用書寫片基材側之面朝向顯示元件側。 The touch panel pen writing sheets of the experimental examples C1 to C4 were attached to a commercially available ultra high definition liquid crystal display device (a smart phone manufactured by Sharp, trade name: SH-03G, pixel density 480 ppi) via a transparent adhesive. The display devices of Experimental Examples C1 to C4 were produced. Further, at the time of bonding, the surface of the touch panel pen writing blade base material side faces the display element side.

用上述觸控面板筆C1~C4於實驗例C1~C4之顯示裝置上進行書寫，結果各觸控面板筆之書寫感之評價係與表5相同。 The touch panel pens C1 to C4 were used for writing on the display devices of the experimental examples C1 to C4. As a result, the evaluation of the writing feeling of each touch panel pen was the same as that of Table 5.

又，於螢光燈照明下利用目視對實驗例C1~C4之顯示裝置之影像進行評價，結果實驗例C1~C2之顯示裝置係防眩性較實驗例C3之顯示裝置優異，與實驗例C4之顯示裝置相比，可抑制超高清顯示元件之解像度降低者。 Moreover, the images of the display devices of Experimental Examples C1 to C4 were evaluated by visual observation under fluorescent lighting, and the display devices of Experimental Examples C1 to C2 were superior to the display device of Experimental Example C3, and Experimental Example C4. Compared with the display device, the resolution reduction of the ultra high definition display element can be suppressed.

[產業上之可利用性] [Industrial availability]

本發明之觸控面板筆用書寫片、觸控面板、觸控面板系統及顯示裝置係於可使觸控面板筆之書寫感變良好之方面上有用。又，本發明之觸控面板筆用書寫片之揀選方法係於可高效率地進行書寫片之製品設計、品質管理之方面上有用。 The touch panel pen writing sheet, the touch panel, the touch panel system and the display device of the present invention are useful for improving the writing feeling of the touch panel pen. Further, the method for selecting a writing sheet for a touch panel pen according to the present invention is useful for efficiently designing a product and quality management of a writing sheet.

1‧‧‧塑膠膜 1‧‧‧Plastic film

2‧‧‧樹脂層 2‧‧‧ resin layer

10‧‧‧觸控面板筆用書寫片 10‧‧‧Touch panel pen writing piece

Claims (17)

一種觸控面板筆用書寫片，其係下述之觸控面板筆(A)用書寫片，該書寫片具有截止值(cutoff value)0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)的表面，0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.05mm≦S2.5≦0.30mmm (A2)<觸控面板筆(A)>該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下，X(MN/m)=[E×D×D]/Pa (i)。 A touch panel pen writing piece, which is a writing piece for a touch panel pen (A) having a maximum height roughness Rz 0.8 of JIS B0601:2001 with a cutoff value of 0.8 mm and The maximum valley depth Rv 0.8 of the roughness curve and the partial peak interval S 2.5 of JIS B0601:1994 with a cutoff value of 2.5 mm satisfy the following conditions (A1) and (A2), 0.35 ≦ Rv 0.8 / Rz 0.8 ≦ 0.60 (A1) 0.05mm≦S 2.5 ≦0.30mmm (A2)<Touch Panel Pen(A)>The touch panel pen is designed to represent the Young's modulus of the structure of the tip and the axis of the touch panel pen. In the case of E, the diameter of the nib is set to D, and when the arithmetic mean height of the cross-sectional curve in the unit measurement section (0.5 mm) of the nib is Pa, the X derived from the following formula (i) is 500 MN/m or less. X(MN/m)=[E×D×D]/Pa (i). 如申請專利範圍第1項之觸控面板筆用書寫片，其中，於將單位測量區間設為1mm，將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt，將5個測量區間之Pt的平均值設為Ptm時，該表面之Ptm滿足下述條件(A3)，0.01μm≦Ptm≦1.00μm (A3)。 For example, in the touch panel pen writing sheet of claim 1, wherein the unit measurement interval is set to 1 mm, the mountain height of the profile curve in the unit measurement section is set to Pp, and the profile in the unit measurement section is used. The maximum valley depth of the curve is set to Pv, and the sum of Pp and Pv is set as the maximum profile height Pt of the profile curve in the unit measurement section. When the average value of Pt of the five measurement sections is Ptm, the Ptm of the surface is set. The following condition (A3) was satisfied, 0.01 μm ≦ Ptm ≦ 1.00 μm (A3). 一種觸控面板，於表面具有片，以作為該片之申請專利範圍第1或2項之觸控面板筆用書寫片滿足該條件(A1)及(A2)之側的面配置成 朝向觸控面板之表面而成。 A touch panel having a sheet on a surface thereof, wherein the surface of the touch panel pen writing sheet of the first or second aspect of the patent application of the sheet satisfies the conditions (A1) and (A2) It is formed toward the surface of the touch panel. 一種顯示裝置，具有觸控面板，該觸控面板為申請專利範圍第3項之觸控面板。 A display device having a touch panel, which is a touch panel of claim 3 of the patent application. 一種觸控面板筆用書寫片之揀選方法，揀選具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大谷深Rv0.8，以及截止值2.5mm之JIS B0601：1994之局部山頂平均間隔S2.5滿足下述條件(A1)及(A2)之表面的片作為下述之觸控面板筆(A)用書寫片，0.35≦Rv0.8/Rz0.8≦0.60 (A1) 0.05mm≦S2.5≦0.30mm (A2)<觸控面板筆(A)>該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X為500MN/m以下，X(MN/m)=[E×D×D]/Pa (i)。 A method for selecting a writing pad for a touch panel pen, which has a maximum height roughness Rz 0.8 of JIS B0601:2001 with a cutoff value of 0.8 mm and a maximum valley depth Rv 0.8 of a roughness curve, and JIS B0601 with a cutoff value of 2.5 mm: The partial average interval S 2.5 of 1994 satisfies the surface of the following conditions (A1) and (A2) as the following writing sheet for the touch panel pen (A), 0.35 ≦ Rv 0.8 / Rz 0.8 ≦ 0.60 (A1) 0.05mm≦S 2.5 ≦0.30mm (A2)<Touch Panel Pen (A)> The touch panel pen is set to E by setting the apparent Young's modulus of the structure of the pen tip and the shaft constituting the touch panel pen. When the diameter of the pen tip is D, and the arithmetic mean height of the profile curve in the unit measurement section (0.5 mm) of the pen tip is Pa, the X derived from the following formula (i) is 500 MN/m or less, X (MN) /m)=[E×D×D]/Pa (i). 一種觸控面板筆用書寫片，其係下述之觸控面板筆(B)用書寫片，該書寫片具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且該書寫片之JIS K7136：2000之霧度(haze)滿足下述條件(B3)，0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.60≦Psk (B2) 霧度為5.0%以上 (B3)<觸控面板筆(B)>該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m，X(MN/m)=[E×D×D]/Pa (i)。 A touch panel pen writing piece, which is a writing piece for a touch panel pen (B) having a maximum height roughness Rz 0.8 and a roughness curve of JIS B0601:2001 with a cutoff value of 0.8 mm. The maximum mountain height Rp 0.8 and the skewness Psk of the profile curve in the measurement section of 1 mm satisfy the surfaces of the following conditions (B1) and (B2), and the haze of JIS K7136:2000 of the writing sheet satisfies the following Condition (B3), 0.50<Rp 0.8 /Rz 0.8 ≦0.75 (B1) 0.60≦Psk (B2) Haze is 5.0% or more (B3)<Touch Panel Pen(B)>The touch panel pen will constitute a touch The apparent Young's modulus of the structure of the pen tip and the axis of the control panel pen is set to E, the diameter of the pen tip is set to D, and the arithmetic mean height of the profile curve in the unit measurement section (0.5 mm) of the pen tip is set to Pa. When X derived from the following formula (i) exceeds 500 MN/m, X (MN/m) = [E × D × D] / Pa (i). 如申請專利範圍第6項之觸控面板筆用書寫片，其中，於將單位測量區間設為1mm，將單位測量區間中之剖面曲線的山高最大值設為Pp，將單位測量區間中之剖面曲線的谷深最大值設為Pv，將Pp與Pv之和設為單位測量區間中之剖面曲線的最大剖面高度Pt，將5個測量區間之Pt的平均值設為Ptm時，該表面之Ptm滿足下述條件(B4)，0.30μm≦Ptm≦7.00μm (B4)。 For example, in the touch panel pen writing sheet of claim 6, wherein the unit measurement interval is set to 1 mm, and the maximum height of the profile in the unit measurement section is Pp, and the section in the unit measurement section is used. The maximum valley depth of the curve is set to Pv, and the sum of Pp and Pv is set as the maximum profile height Pt of the profile curve in the unit measurement section. When the average value of Pt of the five measurement sections is Ptm, the Ptm of the surface is set. The following condition (B4) was satisfied, 0.30 μm ≦ Ptm ≦ 7.00 μm (B4). 如申請專利範圍第6或7項之觸控面板筆用書寫片，其中，於將截止值2.5mm之JIS B0601：1994之局部山頂平均間隔設為S2.5時，該表面之S2.5滿足下述條件(B5)，0.02mm≦S2.5≦0.20mm 　 (B5)。 For example, in the touch panel pen writing sheet of claim 6 or 7, wherein the average peak interval of JIS B0601:1994 with a cutoff value of 2.5 mm is S 2.5 , the surface S 2.5 satisfies the following Condition (B5), 0.02 mm ≦S 2.5 ≦ 0.20 mm (B5). 一種觸控面板，表面具有片，以作為該片之申請專利範圍第6至8項中任一項之觸控面板筆用書寫片滿足該條件(B1)及(B2)之側的面配置成朝向觸控面板之表面而成。 A touch panel having a surface on the surface thereof, wherein the surface of the touch panel pen writing sheet according to any one of the sixth to eighth aspects of the invention is configured to satisfy the conditions (B1) and (B2). It is formed toward the surface of the touch panel. 一種顯示裝置，具有觸控面板，該觸控面板為申請專利範圍第9項之 觸控面板。 A display device having a touch panel, which is in the scope of claim 9 Touch panel. 一種觸控面板筆用書寫片之揀選方法，揀選具有截止值0.8mm之JIS B0601：2001之最大高度粗糙度Rz0.8及粗糙度曲線之最大山高Rp0.8，以及測量區間1mm中之剖面曲線的偏斜度Psk滿足下述條件(B1)及(B2)之表面，且JIS K7136：2000之霧度滿足下述條件(B3)之片作為下述之觸控面板筆(B)用書寫片，0.50<Rp0.8/Rz0.8≦0.75 (B1) 0.60≦Psk (B2) 霧度為5.0%以上 (B3)<觸控面板筆(B)>該觸控面板筆於將構成觸控面板筆之筆尖及軸之構造體之表觀楊氏模數設為E，將筆尖之直徑設為D，將筆尖之單位測量區間(0.5mm)中之剖面曲線的算術平均高度設為Pa時，自下述式(i)導出之X超過500MN/m，X(MN/m)=[E×D×D]/Pa (i)。 A method for selecting a writing pad for a touch panel pen, selecting a maximum height roughness Rz 0.8 of a JIS B0601:2001 having a cutoff value of 0.8 mm and a maximum mountain height Rp 0.8 of a roughness curve, and a partial curve of a section in the measurement interval of 1 mm The sheet having the slope Pks satisfying the following conditions (B1) and (B2), and the sheet having the haze of JIS K7136:2000 satisfying the following condition (B3) is used as a writing sheet for the touch panel pen (B) described below, 0.50 <Rp 0.8 /Rz 0.8 ≦0.75 (B1) 0.60≦Psk (B2) Haze is 5.0% or more (B3)<Touch Panel Pen(B)>The touch panel pen will form the nib of the touch panel pen and The apparent Young's modulus of the axis structure is set to E, the diameter of the pen tip is set to D, and the arithmetic mean height of the profile curve in the unit measurement section (0.5 mm) of the pen tip is set to Pa, from the following formula (i) The derived X exceeds 500 MN/m, and X (MN/m) = [E × D × D] / Pa (i). 一種觸控面板筆用書寫片之揀選方法，揀選滿足下述條件(C1)者作為觸控面板筆用書寫片，<條件(C1)>將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向 之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 A method for selecting a writing piece for a touch panel pen, and selecting a person who satisfies the following condition (C1) as a writing piece for a touch panel pen, <condition (C1)> touching the touch panel pen at an angle of 60 degrees The panel pen is fixed in the state of the surface of the writing sheet, and a vertical load of 100 gf is applied to the touch panel pen to scan a length of 40 mm per one-way at a speed of 14 mm/sec, and this time acts on the scanning direction of the touch panel pen. The dynamic friction coefficient is set to μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less. 如申請專利範圍第12項之觸控面板筆用書寫片之揀選方法，其揀選該μk滿足下述條件(C2)者作為觸控面板筆用書寫片，<條件(C2)>0.06≦μk≦0.30。 For example, in the method for selecting a touch panel pen for writing a touch panel of claim 12, the one that satisfies the following condition (C2) is selected as a touch panel for a touch panel pen, <condition (C2)>0.06≦μk≦ 0.30. 一種觸控面板筆用書寫片，具有滿足下述條件(C1)之表面，<條件(C1)>將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片表面之狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 A touch panel pen writing sheet having a surface satisfying the following condition (C1), <condition (C1)> fixing the touch panel pen in contact with the surface of the touch panel pen writing sheet at an angle of 60 degrees While applying a vertical load of 100 gf to the touch panel pen, the length of one-way 40 mm is scanned at a speed of 14 mm/sec, and the dynamic friction coefficient acting on the scanning direction of the touch panel pen is set to μk, and the static friction coefficient is set. When it is μs, μk/μs is 0.30 or more and 0.58 or less. 一種觸控面板，表面具有片，以作為該片之申請專利範圍第14項之觸控面板筆用書寫片滿足該條件(C1)之側的面配置成朝向觸控面板之表面而成。 A touch panel having a surface on the surface thereof, wherein the surface of the touch panel pen writing sheet of the 14th application of the tablet is configured to face the surface of the touch panel. 一種觸控面板系統，由表面具有觸控面板筆用書寫片之觸控面板與觸控面板筆構成，該觸控面板系統滿足下述條件(C1)，<條件(C1)>將觸控面板筆於以60度之角度接觸觸控面板筆用書寫片之表面的狀態下固定，一面對該觸控面板筆施加垂直負載100gf一面以14mm/秒之速度掃描單程40mm之長度，將此時作用於該觸控面板筆之掃描方 向之動摩擦係數設為μk，將靜摩擦係數設為μs時，μk/μs為0.30以上且0.58以下。 A touch panel system is composed of a touch panel having a touch panel pen writing surface and a touch panel pen. The touch panel system satisfies the following condition (C1), <condition (C1)> touch panel The pen is fixed in a state of contacting the surface of the touch panel pen writing piece at an angle of 60 degrees, and a vertical load of 100 gf is applied to the touch panel pen while scanning a length of 40 mm per one-way at a speed of 14 mm/sec. Acting on the scanning side of the touch panel pen The moving friction coefficient is set to μk, and when the static friction coefficient is μs, μk/μs is 0.30 or more and 0.58 or less. 一種顯示裝置，具有觸控面板，該觸控面板為申請專利範圍第15項之觸控面板。 A display device having a touch panel, which is a touch panel of claim 15 of the patent application.
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