TWI761652B - Touch panel and fabrication method thereof - Google Patents

Touch panel and fabrication method thereof Download PDF

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Publication number
TWI761652B
TWI761652B TW108100104A TW108100104A TWI761652B TW I761652 B TWI761652 B TW I761652B TW 108100104 A TW108100104 A TW 108100104A TW 108100104 A TW108100104 A TW 108100104A TW I761652 B TWI761652 B TW I761652B
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light source
cover plate
touch panel
layer
diffusion layer
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TW108100104A
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Chinese (zh)
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TW201935205A (en
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趙萬春
顏希哲
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大陸商宸美（廈門）光電有限公司
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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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

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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)
  • Push-Button Switches (AREA)

Abstract

A touch panel has an active region, a periphery region immediately adjacent to the active region, a cover glass, a light source, a sensing structure, a shelter layer and a diffusion layer. The light source is on the periphery region and is covered by the cover glass. The sensing structure is at least on the active region and covered by the cover glass. The shelter layer is on the periphery region and covered by the cover glass. The shelter layer has an opening on a light outgoing path. The diffusion layer is coated on the light source, cover glass and shelter layer and is on the light outgoing path of the light source.

Description

觸控面板及其製作方法 Touch panel and method of making the same

本發明係有關於觸控技術領域，且特別係關於一種觸控面板及其製作方法。 The present invention relates to the technical field of touch control, and in particular, to a touch panel and a manufacturing method thereof.

傳統的觸控技術中，觸控面板係設置於液晶顯示器(liquid crystal display；LCD)、陰極射線管(cathode ray tube；CRT)、場發射顯示器(filed emission display；FED)、等離子(plasma display panel；PDP)或電激發光顯示(electroluminescent display)等圖像顯示元件的顯示面上，讓使用者可藉由碰觸觸控面板並觀看圖案顯示元件來輸入訊息。 In the traditional touch technology, the touch panel is arranged on a liquid crystal display (LCD), a cathode ray tube (CRT), a field emission display (FED), a plasma display panel (plasma display panel) ; PDP) or electroluminescent display (electroluminescent display) and other image display elements on the display surface, allowing users to input information by touching the touch panel and viewing the pattern display element.

觸控面板係多層結構，舉例而言，觸控面板具有蓋板作為第一層以及位於蓋板下方的一層或多層觸控感測結構，兩者係透過黏著層貼合。 The touch panel is a multi-layer structure. For example, the touch panel has a cover plate as the first layer and one or more layers of touch sensing structures under the cover plate, and the two are bonded through an adhesive layer.

本發明之實施方式採用將擴散層直接塗佈於光源、遮蔽層或蓋板上，而免除貼合或黏貼具有擴散功能之擴散 片的步驟。 In the embodiment of the present invention, the diffusion layer is directly coated on the light source, the shielding layer or the cover plate, so as to avoid lamination or sticking of diffusion with diffusion function. slice steps.

於部份實施方式中，一種觸控面板界定有一可視區及一緊鄰可視區的一非可視區，觸控面板包含一蓋板、一光源、一觸控感測結構、一遮蔽層以及一擴散層。光源係位於非可視區內，並被蓋板覆蓋。一觸控感測結構至少係位於可視區內，並被蓋板覆蓋。遮蔽層係位於非可視區內，並被蓋板覆蓋，遮蔽層具有一開口，遮蔽層之開口位於光源之一出光路徑上。擴散層係塗佈於光源、蓋板或遮蔽層，並位於光源之出光路徑上。 In some embodiments, a touch panel defines a visible area and a non-visible area adjacent to the visible area, the touch panel includes a cover plate, a light source, a touch sensing structure, a shielding layer and a diffusion layer. The light source is located in the non-visible area and covered by a cover plate. A touch sensing structure is at least located in the visible area and covered by the cover plate. The shielding layer is located in the non-visible area and is covered by the cover plate. The shielding layer has an opening, and the opening of the shielding layer is located on a light output path of the light source. The diffusion layer is coated on the light source, the cover plate or the shielding layer, and is located on the light output path of the light source.

於部份實施方式中，觸控面板更包含一抗反射層，抗反射層覆蓋蓋板。 In some embodiments, the touch panel further includes an anti-reflection layer, and the anti-reflection layer covers the cover plate.

於部份實施方式中，擴散層係塗佈於光源的面對蓋板的一頂面上。 In some embodiments, the diffusion layer is coated on a top surface of the light source facing the cover plate.

於部份實施方式中，擴散層係塗佈該蓋板之背對光源的一頂面上。 In some embodiments, the diffusion layer is coated on a top surface of the cover plate facing away from the light source.

於部份實施方式中，擴散層係塗佈於遮蔽層之面對光源的一底面上。 In some embodiments, the diffusion layer is coated on a bottom surface of the shielding layer facing the light source.

於部份實施方式中，一種觸控面板的製作方法包含形成具有一開口的一遮蔽層於一蓋板；形成一觸控感測結構於蓋板；設置一光源於遮蔽層之開口下方；以及塗佈一擴散層於光源、蓋板或遮蔽層上。 In some embodiments, a method of fabricating a touch panel includes forming a shielding layer having an opening on a cover plate; forming a touch sensing structure on the cover plate; disposing a light source under the opening of the shielding layer; and A diffusion layer is coated on the light source, the cover plate or the shielding layer.

於部份實施方式中，擴散層係塗佈於蓋板之背對觸控感測結構的一頂面上。 In some embodiments, the diffusion layer is coated on a top surface of the cover plate facing away from the touch sensing structure.

於部份實施方式中，方法更包含設置一抗反射層於該擴散層上方。 In some embodiments, the method further includes disposing an anti-reflection layer over the diffusion layer.

於部份實施方式中，擴散層係塗佈於光源的面對蓋板的一頂面上。 In some embodiments, the diffusion layer is coated on a top surface of the light source facing the cover plate.

於部份實施方式中，擴散層係塗佈於遮蔽層的面對光源的一底面上。 In some embodiments, the diffusion layer is coated on a bottom surface of the shielding layer facing the light source.

於上述實施方式中，由於觸控面板包含擴散層，故可擴散光源射出的光線。舉例而言，當光線通過擴散層時，擴散後的光線可均勻照射到蓋板的按鍵圖案上，免於讓光源射出的光線直接照射到蓋板的按鍵圖案。藉此，擴散層可提高光線的均勻性。此外，由於擴散層係直接塗佈於光源、蓋板或遮蔽層上，故此觸控面板可免去貼合或黏貼擴散片的步驟。如此一來，上述實施方式能在免於貼合或黏貼擴散片的情況下，將擴散層設置於觸控面板中。 In the above-mentioned embodiment, since the touch panel includes the diffusion layer, the light emitted by the light source can be diffused. For example, when the light passes through the diffusion layer, the diffused light can evenly irradiate on the key pattern of the cover, so as to prevent the light emitted from the light source from directly irradiating the key pattern of the cover. Thereby, the diffusion layer can improve the uniformity of light. In addition, since the diffusion layer is directly coated on the light source, the cover plate or the shielding layer, the touch panel can avoid the step of laminating or pasting the diffusion sheet. In this way, the above-mentioned embodiments can dispose the diffusion layer in the touch panel without attaching or sticking the diffusion sheet.

以上所述僅係用以闡述本發明所欲解決的問題、解決問題的技術手段、及其產生的功效等等，本發明之具體細節將在下文的實施方式及相關圖式中詳細介紹。 The above descriptions are only used to describe the problems to be solved by the present invention, the technical means for solving the problems, and their effects, etc. The specific details of the present invention will be described in detail in the following embodiments and related drawings.

10‧‧‧觸控面板 10‧‧‧Touch Panel

12‧‧‧可視區 12‧‧‧Visual area

14‧‧‧非可視區 14‧‧‧Non-viewable area

100‧‧‧光源 100‧‧‧Light source

102、102a、102b、102c、102d、102e‧‧‧擴散層 102, 102a, 102b, 102c, 102d, 102e‧‧‧diffusion layer

104‧‧‧觸控感測結構 104‧‧‧Touch Sensing Structure

106‧‧‧遮蔽層 106‧‧‧Shielding layer

108‧‧‧蓋板 108‧‧‧Cover

110‧‧‧塗層 110‧‧‧Coating

202‧‧‧第一軸向電極 202‧‧‧First axial electrode

204‧‧‧第二軸向電極 204‧‧‧Second axial electrode

302‧‧‧導電單元 302‧‧‧Conductive unit

304‧‧‧橋接結構 304‧‧‧Bridge structure

306‧‧‧絕緣層 306‧‧‧Insulating layer

308‧‧‧引線結構 308‧‧‧Lead structure

O‧‧‧開口 O‧‧‧Opening

OP‧‧‧出光路徑 OP‧‧‧Light Path

P‧‧‧按鍵圖案 P‧‧‧Key Pattern

S1‧‧‧出光面 S1‧‧‧Light-emitting surface

S2‧‧‧底面 S2‧‧‧Bottom

S3‧‧‧頂面 S3‧‧‧Top

閱讀以下詳細敘述並搭配對應之圖式，可了解本揭露之多個樣態。需留意的是，圖式中的多個特徵並未依照該業界領域之標準作法繪製實際比例。事實上，所述之特徵的尺寸可以任意的增加或減少以利於討論的清晰性。 Various aspects of the present disclosure can be understood by reading the following detailed description and corresponding drawings. It should be noted that various features in the drawings are not drawn to scale according to standard practice in the industry. In fact, the dimensions of the described features may be arbitrarily increased or decreased to facilitate clarity of discussion.

第1圖繪示根據本揭露之部份實施方式的觸控面板的上視 圖；第2圖繪示根據本揭露之部份實施方式的觸控面板的***圖；第3圖繪示第1圖之觸控面板沿著第1圖之A-A’線的剖面***圖；第4圖繪示根據本揭露之另一實施方式之觸控面板的剖面***圖；第5圖繪示根據本揭露之另一實施方式之觸控面板的剖面***圖；第6圖繪示根據本揭露之另一實施方式之觸控面板的剖面***圖；第7圖繪示根據本揭露之另一實施方式之觸控面板的剖面***圖；以及第8圖繪示根據本揭露之另一實施方式之觸控面板的剖面***圖。 FIG. 1 shows a top view of a touch panel according to some embodiments of the present disclosure. Fig. 2 shows an exploded view of the touch panel according to some embodiments of the present disclosure; Fig. 3 shows a cross-sectional exploded view of the touch panel of Fig. 1 along the line AA' of Fig. 1 ; Figure 4 shows a cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure; Figure 5 shows a cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure; Figure 6 shows A cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure; FIG. 7 is a cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure; and FIG. 8 illustrates another embodiment of the present disclosure. A cross-sectional exploded view of a touch panel according to an embodiment.

以下將以圖式及詳細說明清楚說明本揭露之精神，任何所屬技術領域中具有通常知識者在瞭解本揭露之實施例後，當可由本揭露所教示之技術，加以改變及修飾，其並不脫離本揭露之精神與範圍。舉例而言，敘述「第一特徵形成於第二特徵上方或上」，於實施例中將包含第一特徵及第二特徵具有直接接觸；且也將包含第一特徵和第二特徵為非直接接觸，具有額外的特徵形成於第一特徵和第二特徵之間。此外， 本揭露在多個範例中將重複使用元件標號以和/或文字。重複的目的在於簡化與釐清，而其本身並不會決定多個實施例以和/或所討論的配置之間的關係。 The following will clearly illustrate the spirit of the present disclosure with drawings and detailed descriptions. After understanding the embodiments of the present disclosure, any person with ordinary knowledge in the technical field can make changes and modifications by the techniques taught in the present disclosure. out of the spirit and scope of this disclosure. For example, a statement that "a first feature is formed over or over a second feature" would in an embodiment include that the first feature and the second feature have direct contact; and would also include that the first feature and the second feature are not directly A contact, having an additional feature formed between the first feature and the second feature. also, The present disclosure will reuse element numbers and/or text in various instances. Repetition is for the purpose of simplicity and clarity, and does not in itself determine the relationship between the various embodiments and/or the configurations discussed.

此外，方位相對詞彙，如「在…之下」、「下面」、「下」、「上方」或「上」或類似詞彙，在本文中為用來便於描述繪示於圖式中的一個元件或特徵至另外的元件或特徵之關係。方位相對詞彙除了用來描述裝置在圖式中的方位外，其包含裝置於使用或操作下之不同的方位。當裝置被另外設置(旋轉90度或者其他面向的方位)，本文所用的方位相對詞彙同樣可以相應地進行解釋。 In addition, directional relative terms, such as "below," "below," "below," "above," or "above," or similar terms, are used herein to facilitate description of an element depicted in the figures or the relationship of a feature to another element or feature. Orientation-relative terms include, in addition to describing the orientation of the device in the drawings, different orientations of the device in use or operation. When the device is otherwise positioned (rotated 90 degrees or otherwise oriented), the terms relative to orientation used herein are also to be interpreted accordingly.

第1圖繪示根據本揭露之部份實施方式之觸控面板的上視圖。第2圖繪示根據本揭露之部份實施方式之觸控面板的***圖。第3圖繪示第1圖之觸控面板沿著第1圖之A-A’線的剖面***圖。其中觸控面板10可例如是應用於電腦、手機、相機、音響設備、車用設備等具螢幕顯示功能之電子裝置。如第1圖至第3圖所示，觸控面板10界定有可視區12及緊鄰於可視區12的非可視區14，並包含光源100、擴散層102、觸控感測結構104、遮蔽層106及蓋板108，蓋板108上設置有塗層110，以附加防靜電、防眩(AG；anti-glare)及/或抗反射(AR；anti-reflective)的功能，形成具有保護功能的蓋板108。也就是說，塗層110可為抗反射層，並覆蓋蓋板108。具體而言，上述電子裝置的螢幕可視區係對應於可視區12。其中，蓋板108可為一強化玻璃或一塑化膜，但本揭露不以此為限。蓋板108的頂面可供用戶觸碰，蓋板108的底面可設置如下所述其 他組成觸控面板的元件。 FIG. 1 shows a top view of a touch panel according to some embodiments of the present disclosure. FIG. 2 shows an exploded view of a touch panel according to some embodiments of the present disclosure. FIG. 3 is a cross-sectional exploded view of the touch panel of FIG. 1 along the line A-A' of FIG. 1 . The touch panel 10 may be applied to, for example, an electronic device with a screen display function, such as a computer, a mobile phone, a camera, an audio equipment, and a vehicle equipment. As shown in FIGS. 1 to 3 , the touch panel 10 defines a visible area 12 and a non-visible area 14 adjacent to the visible area 12 , and includes a light source 100 , a diffusion layer 102 , a touch sensing structure 104 , and a shielding layer 106 and a cover plate 108. The cover plate 108 is provided with a coating layer 110 to add anti-static, anti-glare (AG; anti-glare) and/or anti-reflective (AR; anti-reflective) functions to form a protective Cover plate 108 . That is, the coating layer 110 can be an anti-reflection layer and covers the cover plate 108 . Specifically, the viewable area of the screen of the above-mentioned electronic device corresponds to the viewable area 12 . Wherein, the cover plate 108 may be a tempered glass or a plasticized film, but the present disclosure is not limited thereto. The top surface of the cover plate 108 can be touched by the user, and the bottom surface of the cover plate 108 can be set as described below. It makes up the components of the touch panel.

如第1圖及第2圖所示，觸控感測結構104係至少位於可視區12內，並被蓋板108覆蓋。觸控感測結構104包括複數條沿著第一方向(本實施方式中為X軸)平行排列的第一軸向電極202，以及複數條沿著第二方向(本實施方式為Y軸)平行排列的第二軸向電極204。其中，第二軸向電極204與第一軸向電極202相互絕緣且第二軸向電極204包括複數個導電單元302以及複數條電性連接兩相鄰導電單元302的橋接結構304。第一軸向電極202與橋接結構304間有絕緣層306存在，絕緣層306可使第一軸向電極202和第二軸向電極204之間彼此電性絕緣。觸控感測結構104更包含複數條位於非可視區14的引線結構308，各引線結構308一端分別與第一軸向電極202以及第二軸向電極204電性連接，另一端與外部的處理器(未繪示)相連，用以來傳遞處理器與第一電極結構202與第二電極結構204之間的信號。於部份實施方式中，引線結構308與橋接結構304採用金屬材料，但本揭露不以此為限。於部份實施方式中，觸控感測結構104為單層觸控電極結構，第一軸向電極202與導電單元302位於同一層級平面，這種設計可使觸控感測結構104的厚度降低。於其他實施方式中，觸控感測結構104為雙層或多層觸控電極結構，即兩個軸向的電極通過一整面的絕緣層分隔到不同的平面。 As shown in FIG. 1 and FIG. 2 , the touch sensing structure 104 is located at least in the viewing area 12 and is covered by the cover plate 108 . The touch sensing structure 104 includes a plurality of first axis electrodes 202 arranged in parallel along a first direction (the X axis in this embodiment), and a plurality of electrodes 202 in parallel along a second direction (the Y axis in this embodiment). The second axial electrodes 204 are arranged. The second axial electrode 204 and the first axial electrode 202 are insulated from each other, and the second axial electrode 204 includes a plurality of conductive units 302 and a plurality of bridge structures 304 electrically connecting two adjacent conductive units 302 . An insulating layer 306 exists between the first axial electrode 202 and the bridge structure 304 , and the insulating layer 306 can electrically insulate the first axial electrode 202 and the second axial electrode 204 from each other. The touch sensing structure 104 further includes a plurality of lead structures 308 located in the non-visible area 14 . One end of each lead structure 308 is electrically connected to the first axial electrode 202 and the second axial electrode 204 respectively, and the other end is connected to the external processing A processor (not shown) is connected to transmit signals between the processor and the first electrode structure 202 and the second electrode structure 204 . In some embodiments, the lead structure 308 and the bridge structure 304 are made of metal materials, but the present disclosure is not limited thereto. In some embodiments, the touch sensing structure 104 is a single-layer touch electrode structure, and the first axial electrode 202 and the conductive unit 302 are located on the same level plane. This design can reduce the thickness of the touch sensing structure 104 . In other embodiments, the touch sensing structure 104 is a two-layer or multi-layer touch electrode structure, that is, two axial electrodes are separated into different planes by a whole-surface insulating layer.

請參閱第3圖，遮蔽層106係位於非可視區14內，並被蓋板108覆蓋。遮蔽層106在非可視區14可位於蓋板108與觸控感測結構104之間，於部份實施方式中，遮蔽層106在 非可視區14可位於蓋板108的下表面，其作用為遮蔽位於非可視區14內的其他電路元件，以保證產品的外觀，其中遮蔽層106的材料為不透光材料，例如有色油墨。於部份實施方式中，遮蔽層106為黑色矩陣(BM；black matrix)。遮蔽層106具有開口O，開口O係位於光源100之出光路徑OP上，開口O係為通過蝕刻的方式形成於遮蔽層106上的鏤空圖案P，如第1圖所示。此鏤空圖案P可為位於非可視區內的觸控功能按鍵圖案、產品的品牌標示或其他裝飾圖案。 Please refer to FIG. 3 , the shielding layer 106 is located in the non-visible area 14 and covered by the cover plate 108 . The shielding layer 106 may be located between the cover plate 108 and the touch sensing structure 104 in the non-visible area 14. In some embodiments, the shielding layer 106 is located between the cover plate 108 and the touch sensing structure 104. The non-visible area 14 can be located on the lower surface of the cover plate 108 , which functions to shield other circuit elements located in the non-visible area 14 to ensure the appearance of the product, wherein the material of the shielding layer 106 is opaque material, such as colored ink. In some embodiments, the shielding layer 106 is a black matrix (BM). The shielding layer 106 has an opening O, the opening O is located on the light exit path OP of the light source 100 , and the opening O is a hollow pattern P formed on the shielding layer 106 by etching, as shown in FIG. 1 . The hollow pattern P can be a touch function key pattern in the non-visible area, a product brand logo or other decorative patterns.

於部份實施方式中，觸控感測結構104在非可視區14可位於遮蔽層106的下表面且具有一部份對應至開口O，觸控感測結構104在非可視區14則可設置於蓋板108下方，例如可直接設置在蓋板108的下表面。於部份實施方式中，觸控感測結構104與蓋板108之間在可視區12範圍中亦可設置其他輔助元件層，但本揭露不以此為限。於部份實施方式中，觸控感測結構104可由可視區12延伸至位於非可視區14的圖案P的所在區域，以使觸控面板10位於非可視區14內的圖形按鍵具備觸控功能，但本揭露不以此為限。於部份實施方式中，觸控感測結構104包含第一感測部及一獨立於第一感測部之第二感測部，其中第一感測部位於可視區12，第二感測部位於非可視區14並對應於圖案P，使圖案P處具備觸控感測功能。觸控感測結構104係設置於圖案P所在區域內，由於觸控感測結構104的電極主要由透明導電材質所構成，因此不會遮蔽下方光源的光線。 In some embodiments, the touch sensing structure 104 may be located on the lower surface of the shielding layer 106 in the non-visible area 14 and has a portion corresponding to the opening O, and the touch sensing structure 104 may be disposed in the non-visible area 14 Below the cover plate 108 , for example, it can be directly disposed on the lower surface of the cover plate 108 . In some embodiments, other auxiliary device layers may also be disposed in the visible area 12 between the touch sensing structure 104 and the cover plate 108 , but the present disclosure is not limited thereto. In some embodiments, the touch sensing structure 104 can extend from the visible area 12 to the area where the pattern P is located in the invisible area 14 , so that the graphic keys of the touch panel 10 located in the invisible area 14 have a touch function. , but this disclosure is not limited to this. In some embodiments, the touch sensing structure 104 includes a first sensing portion and a second sensing portion independent of the first sensing portion, wherein the first sensing portion is located in the visible area 12, and the second sensing portion is The part is located in the non-visible area 14 and corresponds to the pattern P, so that the pattern P has a touch sensing function. The touch sensing structure 104 is disposed in the area where the pattern P is located. Since the electrodes of the touch sensing structure 104 are mainly composed of transparent conductive materials, the light from the light source below will not be shielded.

於部份實施方式中，觸控感測結構104可由透明 導電材料所組成。例如，氧化銦錫(indium tin oxide；ITO)、氧化銦鋅(indium zinc oxide；IZO)、氧化鎘錫(cadmium tin oxide；CTO)、氧化鋁鋅(aluminum zinc oxide；AZO)、氧化銦鋅錫(indium tin zinc oxide；ITZO)、氧化錫(tin oxide)、氧化鋅(zinc oxide)、氧化鎘(cadmium oxide)、氧化鉿(hafnium oxide；HfO)、氧化銦鎵鋅(indium gallium zinc oxide；InGaZnO)、氧化銦鎵鋅鎂(indium gallium zinc magnesium oxide；InGaZnMgO)、氧化銦鎵鎂(indium gallium magnesium oxide；InGaMgO)、氧化銦鎵鋁(indium gallium aluminum oxide；InGaAlO)、奈米碳管(Carbon Nano Tube；CNT)、銀奈米碳管或銅奈米碳管等、或其他透明導電材質，但本揭露不以此為限。 In some embodiments, the touch sensing structure 104 may be transparent composed of conductive materials. For example, indium tin oxide (ITO), indium zinc oxide (IZO), cadmium tin oxide (CTO), aluminum zinc oxide (AZO), indium zinc tin oxide (AZO) (indium tin zinc oxide; ITZO), tin oxide (tin oxide), zinc oxide (zinc oxide), cadmium oxide (cadmium oxide), hafnium oxide (hafnium oxide; HfO), indium gallium zinc oxide (indium gallium zinc oxide; InGaZnO) ), indium gallium zinc magnesium oxide (InGaZnMgO), indium gallium magnesium oxide (InGaMgO), indium gallium aluminum oxide (InGaAlO), carbon nanotubes (Carbon Nano Tube; CNT), silver carbon nanotubes or copper carbon nanotubes, etc., or other transparent conductive materials, but the disclosure is not limited thereto.

光源100係位於非可視區14內，並被蓋板108覆蓋。於部份實施方式中，光源100具有面向遮蔽層106及蓋板108的出光面S1，且係位於遮蔽層之開口O的下方。於部份實施方式中，光源100係發光二極體或其他適合的發光元件。 The light source 100 is located in the non-visible area 14 and covered by the cover plate 108 . In some embodiments, the light source 100 has a light emitting surface S1 facing the shielding layer 106 and the cover plate 108 , and is located below the opening O of the shielding layer. In some embodiments, the light source 100 is a light emitting diode or other suitable light emitting element.

於本實施方式中，觸控感測結構104下的光源100發出的部份光線會被遮蔽層106阻擋，部份光線可直接通過開口O，如此可凸顯出遮蔽層106的圖案。擴散層102係位於光源100之出光路徑OP上。舉例來說，如第3圖所示，擴散層102係塗佈於光源100之面對蓋板108的出光面S1上，且位於光源100和觸控感測結構104之間，光線依序通過擴散層102、觸控感測結構104、遮蔽層106的開口O以及蓋板108，擴散層102可擴散光源100射出的光線。於部份實施方式中，擴散層102 係包含擴散粒子的油墨或塗料，具有光擴散效果，並係以印刷、噴塗或濺鍍等方式形成於光源100的出光面S1上，但本揭露不以此為限。由於擴散層102係直接塗佈於光源100上，故觸控面板10無須額外的載板來支撐擴散層102，也就是說，觸控面板10免於貼合具有擴散功能的載板的步驟。於部份實施方式中，如第3圖所示，擴散層102係整面地塗佈於光源100的出光面S1上。也就是說，光源100的出光面S1係完全被擴散層102所覆蓋的。但本揭露並不此以為限。舉例來說，在其他實施方式中，如第4圖所示，擴散層102a僅部份地塗佈於光源100的出光面S1上。也就是說，光源100之出光面S1的一部份係被擴散層102a所覆蓋，而另一部份係未被擴散層102a所覆蓋。 In this embodiment, part of the light emitted by the light source 100 under the touch sensing structure 104 is blocked by the shielding layer 106 , and part of the light can directly pass through the opening O, so that the pattern of the shielding layer 106 can be highlighted. The diffusion layer 102 is located on the light output path OP of the light source 100 . For example, as shown in FIG. 3, the diffusion layer 102 is coated on the light emitting surface S1 of the light source 100 facing the cover plate 108, and is located between the light source 100 and the touch sensing structure 104, and the light passes through in sequence The diffusion layer 102 , the touch sensing structure 104 , the opening O of the shielding layer 106 and the cover plate 108 , the diffusion layer 102 can diffuse the light emitted by the light source 100 . In some embodiments, the diffusion layer 102 The ink or paint containing diffusing particles has a light diffusing effect, and is formed on the light emitting surface S1 of the light source 100 by printing, spraying or sputtering, but the disclosure is not limited thereto. Since the diffusion layer 102 is directly coated on the light source 100 , the touch panel 10 does not need an additional carrier to support the diffusion layer 102 , that is, the touch panel 10 avoids the step of laminating the carrier with diffusion function. In some embodiments, as shown in FIG. 3 , the diffusion layer 102 is entirely coated on the light-emitting surface S1 of the light source 100 . That is to say, the light emitting surface S1 of the light source 100 is completely covered by the diffusion layer 102 . However, this disclosure is not limited to this. For example, in other embodiments, as shown in FIG. 4 , the diffusion layer 102 a is only partially coated on the light emitting surface S1 of the light source 100 . That is to say, a part of the light emitting surface S1 of the light source 100 is covered by the diffusion layer 102a, and the other part is not covered by the diffusion layer 102a.

第5圖繪示根據本揭露另一實施方式之觸控面板的剖面***圖。如第5圖所示，本實施方式與第3圖所示的實施方式之間的主要差異在於：本實施方式所示之擴散層102b係塗佈於遮蔽層106面對光源100的底面S2上，也就是說，擴散層102b係位於觸控感測結構104及遮蔽層106之間，光線依序通過觸控感測結構104、擴散層102b、遮蔽層106的開口O以及蓋板108，擴散層102b可擴散光源100射出的光線，使擴散後的光線通過遮蔽層106的開口O。於部份實施方式中，擴散層102b係包含擴散粒子的油墨或塗料，並係以印刷、噴塗或濺鍍等方式形成於遮蔽層106面對光源100的底面S2上，但本揭露不以此為限。由於擴散層102b係直接塗佈於遮蔽層106上，故觸控面板10無須額外的載板來支撐擴散層102b，也就是說，觸控面板10免於貼合具有擴散功能的載板的步驟。於部 份實施方式中，如第4圖所示，擴散層102b係整面地塗佈於遮蔽層106面對光源的底面S2上。但本揭露並不以此為限。舉例來說，於其他實施方式中，如第6圖所示，擴散層102c係部份地塗佈於遮蔽層106面對光源的底面S2上。 FIG. 5 is a cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure. As shown in FIG. 5, the main difference between this embodiment and the embodiment shown in FIG. 3 is that the diffusion layer 102b shown in this embodiment is coated on the bottom surface S2 of the shielding layer 106 facing the light source 100 That is to say, the diffusion layer 102b is located between the touch sensing structure 104 and the shielding layer 106, and the light passes through the touch sensing structure 104, the diffusion layer 102b, the opening O of the shielding layer 106 and the cover plate 108 in sequence, and diffuses. The layer 102 b can diffuse the light emitted by the light source 100 , so that the diffused light can pass through the opening O of the shielding layer 106 . In some embodiments, the diffusion layer 102b is an ink or paint containing diffusion particles, and is formed on the bottom surface S2 of the shielding layer 106 facing the light source 100 by printing, spraying or sputtering, but this is not the case in the present disclosure. limited. Since the diffusion layer 102b is directly coated on the shielding layer 106, the touch panel 10 does not need an additional carrier to support the diffusion layer 102b, that is, the touch panel 10 is exempt from the step of laminating the carrier with diffusion function . Yu Department In this embodiment, as shown in FIG. 4 , the diffusion layer 102b is entirely coated on the bottom surface S2 of the shielding layer 106 facing the light source. However, this disclosure is not limited to this. For example, in other embodiments, as shown in FIG. 6 , the diffusion layer 102c is partially coated on the bottom surface S2 of the shielding layer 106 facing the light source.

第7圖繪示根據本揭露另一實施方式之觸控面板的剖面***圖。如第7圖所示，本實施方式與前述實施方式之間的主要差異在於：本實施方式所示之擴散層102d係塗佈於蓋板108上，具體而言，擴散層102d係塗佈於蓋板108背向光源100的頂面S3上。換句話說，擴散層102d係塗佈於蓋板108背對觸控感測結構104的頂面S3上，也就是說，擴散層102d係塗佈於蓋板108背對光源100的頂面S3上。如第7圖所示，擴散層102d係設置於於蓋板108及塗層110之間。光線依序通過觸控感測結構104、遮蔽層106的開口O、蓋板108以及擴散層102d，擴散層102d可擴散光源100射出的光線。於部份實施方式中，擴散層102d係包含擴散粒子的油墨或塗料，並係以印刷、噴塗或濺鍍等方式形成於遮蔽層106面對光源100的底面S3上，但本揭露不以此為限。由於擴散層102d係直接塗佈於蓋板108上，故觸控面板10無須額外的載板來支撐擴散層102d，也就是說，觸控面板10免於貼合具有擴散功能的載板的步驟。於部份實施方式中，如第7圖所示，擴散層102d係整面地塗佈於蓋板108背對光源100的頂面S3上，塗層110係位於擴散層102d上方但本揭露並不以此為限。舉例來說，於其他實施方式中，如第8圖所示，擴散層102e係部份地塗佈於蓋板108背對光源100的頂面S3上。 FIG. 7 is a cross-sectional exploded view of a touch panel according to another embodiment of the present disclosure. As shown in FIG. 7, the main difference between this embodiment and the previous embodiment is that the diffusion layer 102d shown in this embodiment is coated on the cover plate 108. Specifically, the diffusion layer 102d is coated on the cover plate 108. The cover plate 108 faces away from the top surface S3 of the light source 100 . In other words, the diffusion layer 102d is coated on the top surface S3 of the cover plate 108 facing away from the touch sensing structure 104 , that is, the diffusion layer 102d is coated on the top surface S3 of the cover plate 108 facing away from the light source 100 . superior. As shown in FIG. 7 , the diffusion layer 102 d is disposed between the cover plate 108 and the coating layer 110 . The light passes through the touch sensing structure 104 , the opening O of the shielding layer 106 , the cover plate 108 and the diffusion layer 102 d in sequence, and the diffusion layer 102 d can diffuse the light emitted from the light source 100 . In some embodiments, the diffusion layer 102d is an ink or paint containing diffusion particles, and is formed on the bottom surface S3 of the shielding layer 106 facing the light source 100 by printing, spraying or sputtering, but this is not the case in the present disclosure. limited. Since the diffusion layer 102d is directly coated on the cover plate 108, the touch panel 10 does not need an additional carrier to support the diffusion layer 102d, that is, the touch panel 10 is exempt from the step of laminating the carrier with diffusion function . In some embodiments, as shown in FIG. 7, the diffusion layer 102d is entirely coated on the top surface S3 of the cover plate 108 facing away from the light source 100, and the coating layer 110 is located above the diffusion layer 102d. Not limited to this. For example, in other embodiments, as shown in FIG. 8 , the diffusion layer 102e is partially coated on the top surface S3 of the cover plate 108 facing away from the light source 100 .

以上概述數個實施方式或實施例的特徵，使所屬領域中具有通常知識者可以從各個方面更加瞭解本揭露。本技術領域中具有通常知識者應可理解，且可輕易地以本揭露為基礎來設計或修飾其他製程及結構，並以此達到相同的目的及/或達到在此介紹的實施方式或實施例相同之優點。本技術領域中具有通常知識者也應了解這些相等的結構並未悖離本揭露的揭露精神與範圍。在不悖離本揭露的精神與範圍之前提下，可對本揭露進行各種改變、置換或修改。 The features of several embodiments or embodiments are summarized above, so that those skilled in the art can better understand the present disclosure from various aspects. It should be understood by those skilled in the art that other processes and structures can be easily designed or modified based on the present disclosure to achieve the same purpose and/or to achieve the embodiments or embodiments described herein. the same advantages. Those skilled in the art should also understand that these equivalent structures do not depart from the spirit and scope of the present disclosure. Various changes, substitutions or modifications may be made to the present disclosure without departing from the spirit and scope of the present disclosure.

10‧‧‧觸控面板 10‧‧‧Touch Panel

12‧‧‧可視區 12‧‧‧Visual area

14‧‧‧非可視區 14‧‧‧Non-viewable area

100‧‧‧光源 100‧‧‧Light source

102‧‧‧擴散層 102‧‧‧Diffusion layer

104‧‧‧觸控感測結構 104‧‧‧Touch Sensing Structure

106‧‧‧遮蔽層 106‧‧‧Shielding layer

108‧‧‧蓋板 108‧‧‧Cover

110‧‧‧塗層 110‧‧‧Coating

O‧‧‧開口 O‧‧‧Opening

OP‧‧‧出光路徑 OP‧‧‧Light Path

S1‧‧‧出光面 S1‧‧‧Light-emitting surface

Claims (10)

一種觸控面板，界定有一可視區及一緊鄰該可視區的一非可視區，該觸控面板包含：一蓋板；一光源，位於該非可視區內，並被該蓋板覆蓋；一觸控感測結構，至少位於該可視區內，並被該蓋板覆蓋；一遮蔽層，位於該非可視區內，並被該蓋板覆蓋，其中該遮蔽層具有一開口，該遮蔽層之該開口位於該光源之一出光路徑上；以及一擴散層，塗佈於該光源、該蓋板或該遮蔽層，並位於該光源之該出光路徑上。 A touch panel defines a visible area and a non-visible area adjacent to the visible area, the touch panel includes: a cover plate; a light source located in the non-visible area and covered by the cover plate; a touch The sensing structure is at least located in the visible area and covered by the cover plate; a shielding layer is located in the non-visual area and covered by the cover plate, wherein the shielding layer has an opening, and the opening of the shielding layer is located in the on a light exit path of the light source; and a diffusion layer, coated on the light source, the cover plate or the shielding layer, and located on the light exit path of the light source. 如請求項1所述之觸控面板，更包含：一抗反射層，覆蓋該蓋板。 The touch panel according to claim 1, further comprising: an anti-reflection layer covering the cover plate. 如請求項1所述之觸控面板，其中該擴散層係塗佈於該光源的面對該蓋板的一頂面上。 The touch panel of claim 1, wherein the diffusion layer is coated on a top surface of the light source facing the cover plate. 如請求項1所述之觸控面板，其中該擴散層係塗佈於該蓋板之背對該光源的一頂面上。 The touch panel of claim 1, wherein the diffusion layer is coated on a top surface of the cover plate facing away from the light source. 如請求項1所述之觸控面板，其中該擴散層係塗佈於該遮蔽層之面對該光源的一底面上。 The touch panel of claim 1, wherein the diffusion layer is coated on a bottom surface of the shielding layer facing the light source. 一種觸控面板的製作方法，其中該觸控面板界定有一可視區及一緊鄰該可視區的一非可視區，該方法包含：形成具有一開口的一遮蔽層於一蓋板對應該非可視區的一區域；形成一觸控感測結構於該蓋板下側，並為該蓋板所覆蓋；設置一光源於該遮蔽層之該開口下方；以及塗佈一擴散層於該光源、該蓋板或該遮蔽層上，其中該擴散層位於該光源之一出光路徑上。 A manufacturing method of a touch panel, wherein the touch panel defines a visible area and a non-visible area adjacent to the visible area, the method includes: forming a shielding layer with an opening on a cover plate corresponding to the invisible area an area of on the plate or the shielding layer, wherein the diffusing layer is located on one of the light exit paths of the light source. 如請求項6所述之方法，其中該擴散層係塗佈於該蓋板之背對該觸控感測結構的一頂面上。 The method of claim 6, wherein the diffusion layer is coated on a top surface of the cover plate facing away from the touch sensing structure. 如請求項7所述之方法，更包含：設置一抗反射層於該擴散層上方。 The method of claim 7, further comprising: disposing an anti-reflection layer over the diffusion layer. 如請求項6所述之方法，其中該擴散層係塗佈於該光源的面對該蓋板的一頂面上。 The method of claim 6, wherein the diffusion layer is coated on a top surface of the light source facing the cover plate. 如請求項7所述之方法，其中該擴散層係塗佈於該遮蔽層的面對該光源的一底面上。 The method of claim 7, wherein the diffusion layer is coated on a bottom surface of the shielding layer facing the light source.
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