TWI678341B - Vehicle display device - Google Patents

Vehicle display device Download PDF

Info

Publication number
TWI678341B
TWI678341B TW104127366A TW104127366A TWI678341B TW I678341 B TWI678341 B TW I678341B TW 104127366 A TW104127366 A TW 104127366A TW 104127366 A TW104127366 A TW 104127366A TW I678341 B TWI678341 B TW I678341B
Authority
TW
Taiwan
Prior art keywords
cover glass
layer
display device
vehicle
display panel
Prior art date
Application number
TW104127366A
Other languages
Chinese (zh)
Other versions
TW201613831A (en
Inventor
井上淳
Atsushi Inoue
山本功
Isao Yamamoto
橋本匡平
Kyohei HASHIMOTO
加藤保真
Yasumasa Kato
深澤寧司
Yasuji Fukasawa
小林裕介
Yusuke Kobayashi
Original Assignee
日商Ａｇｃ股份有限公司
AGC Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日商Ａｇｃ股份有限公司, AGC Inc. filed Critical 日商Ａｇｃ股份有限公司
Publication of TW201613831A publication Critical patent/TW201613831A/en
Application granted granted Critical
Publication of TWI678341B publication Critical patent/TWI678341B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10137—Chemical strengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10366—Reinforcements of the laminated safety glass or glazing against impact or intrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/007—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in gaseous phase
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/011—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  in optical waveguides, not otherwise provided for in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Surface Treatment Of Glass (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Electroluminescent Light Sources (AREA)
  • Glass Compositions (AREA)
  • Instrument Panels (AREA)
  • Theoretical Computer Science (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

提供蓋玻璃之耐衝擊性優良之車載顯示裝置。 Provide automotive display devices with excellent cover glass impact resistance.

一種車載顯示裝置，是以表層之蓋玻璃作為第1層、並將到第n層為止之構件積層而構成之車載顯示裝置；上述蓋玻璃是板厚為0.5~2.5mm且表面壓應力層之厚度為10μm以上之強化玻璃，滿足特定之式(I)。 An on-vehicle display device is an on-vehicle display device that uses a cover glass on the surface layer as the first layer and laminates members up to the nth layer; the cover glass is a plate with a thickness of 0.5 to 2.5 mm and a surface compressive stress layer A tempered glass having a thickness of 10 μm or more satisfies a specific formula (I).

Description

車載顯示裝置 Vehicle display device 發明領域 Field of invention

本發明是涉及車載顯示裝置。 The present invention relates to a vehicle-mounted display device.

發明背景 Background of the invention

習知以來，為了保護液晶面板等之顯示面板而使用將顯示面板之顯示面(顯示區域)覆蓋之透明之保護構件。關於用來如此地保護顯示裝置之保護構件，舉例來說，在專利文獻1已記載了在表面形成黏著層之帶有黏著層之透明面材。 Conventionally, in order to protect a display panel such as a liquid crystal panel, a transparent protective member that covers the display surface (display area) of the display panel is used. As a protective member for protecting the display device in this way, for example, Patent Document 1 describes a transparent surface material with an adhesive layer which forms an adhesive layer on the surface.

先行技術文獻 Advance technical literature 專利文獻 Patent literature

專利文獻1國際公開第2011/148990號 Patent Document 1 International Publication No. 2011/148990

發明概要 Summary of invention

於汽車等車輛是搭載有汽車導航裝置等之車載顯示裝置。關於車載顯示裝置之類型，舉例來說有立起地設在儀表板之外部之外置(on-dash)類型、埋進儀表板之內置(in-dash)類型等。 A vehicle such as a car is an in-vehicle display device equipped with a car navigation device or the like. Regarding the type of the vehicle-mounted display device, for example, there are an on-dash type standing on the outside of the instrument panel and an in-dash type embedded in the instrument panel.

即便是如此之車載顯示裝置亦會從保護顯示面板之觀點而使用薄膜、玻璃等之透明之保護構件，但近年來，從質感之觀點，希望不使用薄膜之保護構件而是使用玻璃之保護構件(蓋玻璃)。再者，玻璃之中，由於層合玻璃往往會厚且易於產生造型上之問題，成本亦高，因此，希望使用強化玻璃。 Even in such a vehicle-mounted display device, a transparent protective member such as a film or glass is used from the viewpoint of protecting the display panel. However, in recent years, it is desirable to use a protective member of glass instead of the protective member of the film from the viewpoint of texture. (Cover glass). Moreover, among glass, since laminated glass tends to be thick, it is easy to cause modeling problems, and the cost is high. Therefore, it is desirable to use strengthened glass.

從安全性之觀點，會對車載顯示裝置用蓋玻璃要求即便在車輛之衝撞事故發生時被乘員之頭部等撞到亦不破裂之優良的耐衝擊性。然而，因為衝撞事故之衝擊造成之能量是遠遠地大於例如液晶電視等之靜置型顯示裝置所設想之衝擊，故會對蓋玻璃要求高的衝擊耐性。 From the viewpoint of safety, the cover glass for in-vehicle display devices is required to have excellent impact resistance that does not break even if it is hit by the head of an occupant when a collision accident of a vehicle occurs. However, since the energy caused by the impact of a collision accident is far greater than the impact envisaged for a stationary display device such as a liquid crystal television, a high impact resistance is required for the cover glass.

本發明是鑑於以上內容而建構之發明，其目的在於提供蓋玻璃之耐衝擊性優良之車載顯示裝置。 The present invention has been made in view of the foregoing, and an object thereof is to provide a vehicle-mounted display device having excellent impact resistance of a cover glass.

與本發明之實施形態相關之車載顯示裝置是以表層之蓋玻璃作為第1層、並將到第n層為止之構件積層而構成之車載顯示裝置；上述蓋玻璃是板厚為0.5~2.5mm且表面壓應力層之厚度為10μm以上之強化玻璃；前述車載顯示裝置是滿足下述式(I)之車載顯示裝置。 The vehicle-mounted display device related to the embodiment of the present invention is a vehicle-mounted display device that uses a cover glass on the surface layer as the first layer and laminates members up to the n-th layer; the cover glass has a thickness of 0.5 to 2.5 mm. In addition, the surface compressive stress layer has a tempered glass with a thickness of 10 μm or more; the aforementioned vehicle display device is a vehicle display device satisfying the following formula (I).

式(I)......P≦0.0302t1 2+0.0039t1+0.0478 Formula (I) ... P ≦ 0.0302t 1 2 + 0.0039t 1 +0.0478

(其中，式(I)中，P=E1/(E1t1 2+...+Entn 2)，E1：蓋玻璃之楊氏係數(單位：GPa)，t1：蓋玻璃之厚度(單位：mm)，En：第n層之構件之楊氏係數(單位：GPa)，tn：第n層之厚度(單位：mm)，n是2以上之整數。) (Wherein, in formula (I), P = E 1 / (E 1 t 1 2 + ... + E n t n 2 ), E 1 : Young's coefficient of cover glass (unit: GPa), t 1 : Cover glass thickness (unit: mm), E n : Young's coefficient (unit: GPa) of the nth layer member, t n : thickness of the nth layer (unit: mm), n is an integer of 2 or more.)

根據本發明，可提供蓋玻璃之耐衝擊性優良之車載顯示裝置。 According to the present invention, it is possible to provide a vehicle-mounted display device having excellent impact resistance of a cover glass.

10‧‧‧帶有黏著層之蓋玻璃 10‧‧‧ Cover glass with adhesive layer

12‧‧‧蓋玻璃 12‧‧‧ cover glass

12a‧‧‧配置區域 12a‧‧‧Configuration area

12b‧‧‧周緣部 12b‧‧‧periphery

12c‧‧‧蓋玻璃之第1主面 12c‧‧‧The first main surface of the cover glass

12d‧‧‧蓋玻璃之第2主面 12d‧2nd main surface of cover glass

14‧‧‧黏著層 14‧‧‧ Adhesive layer

14a‧‧‧黏著層之第1主面 14a‧‧‧The first main surface of the adhesive layer

14b‧‧‧黏著層之側面 14b‧‧‧ Side of Adhesive Layer

16‧‧‧保濩薄膜 16‧‧‧ Preservative film

16a‧‧‧保護薄膜之第1主面 16a‧‧‧The first main surface of the protective film

20‧‧‧遮光部 20‧‧‧Shading Department

100‧‧‧車載顯示裝置 100‧‧‧ vehicle display device

100a‧‧‧顯示面板模組 100a‧‧‧display panel module

102‧‧‧背光單元 102‧‧‧ backlight unit

104‧‧‧顯示面板 104‧‧‧Display Panel

104a‧‧‧顯示面 104a‧‧‧display surface

106‧‧‧殼體 106‧‧‧shell

106a‧‧‧殼體之端面 106a‧‧‧face of the housing

107‧‧‧殼體底構件 107‧‧‧shell bottom member

108‧‧‧開口部 108‧‧‧ opening

109‧‧‧殼體框 109‧‧‧shell frame

110‧‧‧殼體端框 110‧‧‧shell end frame

200‧‧‧試驗體 200‧‧‧ Test body

207‧‧‧雙面膠帶 207‧‧‧ double-sided tape

211‧‧‧螺栓 211‧‧‧bolt

213‧‧‧固定肋 213‧‧‧Fixed rib

215‧‧‧支持板 215‧‧‧Support board

300‧‧‧CG背面高低差部 300‧‧‧CG back elevation step

P‧‧‧衝撞位置 P‧‧‧ collision position

[圖1]表示帶有黏著層之蓋玻璃的示意截面圖。 Fig. 1 is a schematic cross-sectional view showing a cover glass with an adhesive layer.

[圖2]表示車載顯示裝置的示意截面圖。 FIG. 2 is a schematic cross-sectional view showing an in-vehicle display device.

[圖3]表示4層構造的示意圖。 Fig. 3 is a schematic diagram showing a four-layer structure.

[圖4]表示試驗體的立體圖。 4 is a perspective view showing a test body.

[圖5(a)、(b)]圖4之A-A線截面圖。 [FIG. 5 (a), (b)] A-A sectional view of FIG.

[圖6]表示試驗體的平面圖。 6 A plan view showing a test body.

[圖7]將耐衝擊性之評價結果予以繪製的圖表。 [Fig. 7] A graph in which the evaluation results of impact resistance are plotted.

用以實施發明之形態 Forms used to implement the invention

以下雖然是參考圖面來說明本發明之一實施形態，但本發明並非限定於以下之實施形態，可未超脫本發明之範圍而對以下之實施形態施加各種變形及置換。 Although one embodiment of the present invention is described below with reference to the drawings, the present invention is not limited to the following embodiments, and various modifications and replacements may be added to the following embodiments without departing from the scope of the present invention.

以下，首先是針對本實施形態之車載顯示裝置所使用之帶有黏著層之蓋玻璃進行說明，之後，說明本實施形態之車載顯示裝置。 Hereinafter, the cover glass with an adhesive layer used in the vehicle-mounted display device of this embodiment will be described first, and then the vehicle-mounted display device of this embodiment will be described.

[帶有黏著層之蓋玻璃] [Cover glass with adhesive layer]

圖1是表示帶有黏著層之蓋玻璃的示意截面圖。本實施形態是表示將帶有黏著層之蓋玻璃製造而將其貼合於顯示面板之形態，來作為製造車載顯示裝置之方法之一例，但車載顯示裝置之製造方法並不限於此。舉例來說，亦可以 是透過OCA(Optically Clear Adhesive)薄膜等而將蓋玻璃與顯示面板貼合。 FIG. 1 is a schematic cross-sectional view showing a cover glass with an adhesive layer. This embodiment is an example of a method of manufacturing a cover glass with an adhesive layer and bonding the cover glass to a display panel as an example of a method for manufacturing a vehicle-mounted display device. For example, The cover glass and the display panel are bonded through an OCA (Optically Clear Adhesive) film or the like.

圖1表示之帶有黏著層之蓋玻璃10具有透明之蓋玻璃12、黏著層14、保護薄膜16、遮光部20。 The cover glass 10 with an adhesive layer shown in FIG. 1 has a transparent cover glass 12, an adhesive layer 14, a protective film 16, and a light shielding portion 20.

黏著層14是設在蓋玻璃12上。將蓋玻璃12之設黏著層14之區域稱作配置區域12a。蓋玻璃12是在周緣部12b形成有遮光部20，在蓋玻璃12之第1主面12c形成有黏著層14。 The adhesive layer 14 is provided on the cover glass 12. The area of the cover glass 12 in which the adhesive layer 14 is provided is referred to as an arrangement area 12a. In the cover glass 12, a light shielding portion 20 is formed on the peripheral edge portion 12 b, and an adhesive layer 14 is formed on the first main surface 12 c of the cover glass 12.

蓋玻璃12及黏著層14之形狀舉例來說在平面視點下是長方形狀，黏著層14之外形較小。黏著層14舉例來說是相對於蓋玻璃12使中心一致而配置。在蓋玻璃12之第1主面12c，在配置區域12a之周緣之周緣部12b是框狀地形成有遮光部20。 The shapes of the cover glass 12 and the adhesive layer 14 are, for example, rectangular in a plan view, and the outer shape of the adhesive layer 14 is small. The adhesive layer 14 is arrange | positioned so that the center may be uniform with respect to the cover glass 12, for example. On the first main surface 12c of the cover glass 12, a light-shielding portion 20 is formed in a frame-like peripheral portion 12b on the peripheral edge of the arrangement region 12a.

遮光部20是進行遮蔽，令後述之顯示面板之顯示面(顯示區域)外之與顯示面板連接之配線構件等無法從蓋玻璃12之第2主面12d側被看到。不過，當顯示面板之配線構件等是無法從觀察顯示面板之側被看到之構造的情況下等，則並非一定要設遮光部20。 The light shielding portion 20 is shielded so that wiring members and the like connected to the display panel other than the display surface (display area) of the display panel described later cannot be seen from the second main surface 12d side of the cover glass 12. However, when the wiring members and the like of the display panel have a structure that cannot be seen from the side of the display panel, etc., the light shielding portion 20 is not necessarily provided.

在黏著層14之第1主面14a，以可剝離的方式設有覆蓋蓋玻璃12之整面之保護薄膜16。要將帶有黏著層之蓋玻璃10貼合於車載顯示裝置時，令保護薄膜16被剝落。此情況下，舉例來說，在保護薄膜16之第1主面16a切入切口，而令保護薄膜16剝離。保護薄膜16並未特別限定，舉例來說，使用聚乙烯、聚丙烯等之較柔軟之薄膜。 A protective film 16 covering the entire surface of the cover glass 12 is provided on the first main surface 14 a of the adhesive layer 14 in a peelable manner. When the cover glass 10 with an adhesive layer is to be attached to a vehicle display device, the protective film 16 is peeled off. In this case, for example, a cut is made in the first main surface 16 a of the protective film 16, and the protective film 16 is peeled off. The protective film 16 is not particularly limited. For example, a relatively soft film such as polyethylene or polypropylene is used.

[蓋玻璃] [Cover glass]

蓋玻璃12是保護車載顯示裝置之顯示面(顯示區域)之物，通常是平面狀或具有曲面之形狀之板狀體(玻璃板)。 The cover glass 12 protects a display surface (display area) of a vehicle-mounted display device, and is usually a flat plate-like body (glass plate) having a curved surface.

蓋玻璃12之板厚是0.5~2.5mm。若板厚小於0.5mm，則蓋玻璃12本身之強度會不充分，有令帶有黏著層之蓋玻璃10之耐衝擊性降低之虞。另外，若板厚超過2.5mm，則會變得太厚，從設計上之觀點，不適合車載顯示裝置用途。 The cover glass 12 has a thickness of 0.5 to 2.5 mm. If the plate thickness is less than 0.5 mm, the strength of the cover glass 12 itself is insufficient, and there is a possibility that the impact resistance of the cover glass 10 with an adhesive layer is reduced. In addition, if the plate thickness exceeds 2.5 mm, it will become too thick, and it is not suitable for automotive display devices from a design point of view.

從設計性、感測器安裝、往顯示模組安裝之觀點，一般而言，蓋玻璃12之外形、大小是比顯示面板大之尺寸。關於蓋玻璃12之形狀，設計上，配合車載顯示裝置而適宜地決定。車載顯示裝置是矩形、梯形等各式各樣，此情況下，蓋玻璃12之外形常常是與車載顯示裝置之外形狀同等。依照車載顯示裝置之外形，亦可使用覆蓋顯示面板之顯示面之整面且在外形形狀包含曲線之形狀之蓋玻璃12。 From the viewpoint of design, sensor installation, and display module installation, generally, the shape and size of the cover glass 12 are larger than those of the display panel. The shape of the cover glass 12 is appropriately determined in design in accordance with the on-vehicle display device. The in-vehicle display device has various shapes such as a rectangle and a trapezoid. In this case, the outer shape of the cover glass 12 is often the same as the shape other than the on-vehicle display device. According to the external shape of the vehicle display device, a cover glass 12 that covers the entire surface of the display surface of the display panel and includes a curved shape in its outer shape may also be used.

附帶一提，作為蓋玻璃12之大小之一例，舉例來說，矩形的情況下，長方向：100~800mm、寬方向：40~300mm。 Incidentally, as an example of the size of the cover glass 12, for example, in the case of a rectangle, the long direction: 100 to 800 mm, and the width direction: 40 to 300 mm.

在本實施形態，蓋玻璃12舉例來說是使用無色透明之對鈉鈣玻璃、鋁矽酸鹽玻璃(SiO2-Al2O3-Na2O系玻璃)施加了強化處理後之板狀之強化玻璃。 In the present embodiment, the cover glass 12 is, for example, a plate-like material obtained by applying a colorless and transparent reinforcement to soda-lime glass and aluminosilicate glass (SiO 2 -Al 2 O 3 -Na 2 O glass). Tempered glass.

蓋玻璃12舉例來說適合使用對鋁矽酸鹽玻璃施加了離子交換強化處理後之化學強化玻璃(例如旭硝子公司製「Dragontrail(登錄商標)」)。 As the cover glass 12, for example, a chemically strengthened glass (for example, "Dragontrail (registered trademark)" manufactured by Asahi Glass Co., Ltd.) is used after an aluminosilicate glass has been subjected to ion exchange strengthening treatment.

附帶一提，關於構成蓋玻璃12之玻璃材料，舉例來說，以莫耳%顯示的情況下SiO2含有50~80%、Al2O3含有1~20%、Na2O含有6~20%、K2O含有0~11%、MgO含有0~15%、CaO 含有0~6%、及ZrO2含有0~5%之玻璃材料。 Incidentally, as for the glass material constituting the cover glass 12, for example, when displayed in mole%, SiO 2 contains 50 to 80%, Al 2 O 3 contains 1 to 20%, and Na 2 O contains 6 to 20 %, K 2 O contains 0 to 11%, MgO contains 0 to 15%, CaO contains 0 to 6%, and ZrO 2 contains 0 to 5% of the glass material.

已經過化學強化之蓋玻璃12之表面是在其雙面形成有壓應力層，其表面壓應力層之厚度為10μm以上，宜為15μm以上，更宜為25μm以上，更加宜為30μm以上。另外，表面壓應力層之表面壓應力宜為650MPa以上，更宜為750MPa以上。 The surface of the chemically strengthened cover glass 12 has a compressive stress layer formed on both sides thereof. The thickness of the surface compressive stress layer is 10 μm or more, preferably 15 μm or more, more preferably 25 μm or more, and even more preferably 30 μm or more. In addition, the surface compressive stress of the surface compressive stress layer is preferably 650 MPa or more, and more preferably 750 MPa or more.

關於對蓋玻璃12施加化學強化處理之方法，典型的方法是將蓋玻璃12浸漬於KNO3熔融鹽，在經過離子交換處理之後冷卻至室溫附近。KNO3熔融鹽之溫度、浸漬時間等之處理條件只要是以令表面壓應力及表面壓應力層之厚度會成為希望之值的方式而設定即可。 The method is applied on the chemical strengthening treatment of the cover glass 12, a typical approach is to cover glass 12 is immersed, was cooled to near room temperature after the ion exchange treatment in molten salt of KNO 3. The processing conditions such as the temperature and immersion time of the KNO 3 molten salt may be set so that the surface compressive stress and the thickness of the surface compressive stress layer become desired values.

[黏著層] [Adhesive layer]

黏著層14是用來在要將蓋玻璃12貼合於車載顯示裝置之際令蓋玻璃12接著在車載顯示裝置。黏著層14是與蓋玻璃12同樣為透明，蓋玻璃12與黏著層14之折射率差宜為小。 The adhesive layer 14 is used to attach the cover glass 12 to the vehicle display device when the cover glass 12 is to be attached to the vehicle display device. The adhesive layer 14 is transparent as the cover glass 12, and the refractive index difference between the cover glass 12 and the adhesive layer 14 should be small.

關於黏著層14，舉例來說是藉由令液狀之硬化性樹脂組合物硬化所成之透明樹脂來構成之層。關於硬化性樹脂組合物，舉例來說有光硬化性樹脂組合物、熱硬化性樹脂組合物等，其中又以包含硬化性化合物及光聚合引發劑之光硬化性樹脂組合物為佳。關於硬化性樹脂組合物，舉例來說，在專利文獻1所記載之層狀部形成用光硬化性樹脂組合物為適合。 The adhesive layer 14 is, for example, a layer made of a transparent resin formed by curing a liquid curable resin composition. Examples of the curable resin composition include a photocurable resin composition and a thermosetting resin composition. Among them, a photocurable resin composition containing a curable compound and a photopolymerization initiator is preferred. As the curable resin composition, for example, a photocurable resin composition for forming a layered portion described in Patent Document 1 is suitable.

附帶一提，黏著層14即便是如前述般地在蓋玻璃12上 另外將薄膜狀地硬化之OCA等貼合亦無妨。 Incidentally, even if the adhesive layer 14 is on the cover glass 12 as described above In addition, lamination of OCA or the like which is hardened in a film form may be used.

關於如此之黏著層14之厚度，舉例來說宜為5~400μm，更宜為50~200μm。另外，黏著層14之在溫度25℃下之儲存剪切彈性模數舉例來說宜為5kPa~5MPa，更宜為1MPa~30MPa。 The thickness of the adhesive layer 14 is, for example, preferably 5 to 400 μm, and more preferably 50 to 200 μm. In addition, the storage shear modulus of the adhesive layer 14 at a temperature of 25 ° C. is preferably 5 kPa to 5 MPa, and more preferably 1 MPa to 30 MPa.

[帶有黏著層之蓋玻璃之製造方法] [Manufacturing method of cover glass with adhesive layer]

針對帶有黏著層之蓋玻璃10之製造方法進行說明。以下是針對將液狀之樹脂組合物塗佈於蓋玻璃12上而使其硬化之情況下的形態進行說明。 The manufacturing method of the cover glass 10 with an adhesive layer is demonstrated. The following is a description of a case where a liquid resin composition is applied to the cover glass 12 and cured.

首先，在蓋玻璃12之周緣部12b將遮光部20框狀地形成。然後，在蓋玻璃12之第1主面12c整面將遮光部20覆蓋，使用例如模頭塗佈機、輥塗佈機等方法而將硬化性樹脂組合物塗佈，形成硬化性樹脂組合物膜(未圖示)。硬化性樹脂組合物膜是如後述般地被切斷而成為黏著層14。 First, the light shielding portion 20 is formed in a frame shape on the peripheral edge portion 12 b of the cover glass 12. Then, the light-shielding portion 20 is covered over the entire first main surface 12c of the cover glass 12, and the curable resin composition is applied using a method such as a die coater or a roll coater to form a curable resin composition Film (not shown). The curable resin composition film is cut into the adhesive layer 14 as described later.

接著，在硬化性樹脂組合物膜之表面貼上薄膜材(未圖示)。薄膜材是如後述般地被切斷而成為保護薄膜16。在硬化性樹脂組合物膜之表面貼上薄膜材後，藉由光硬化處理或熱硬化處理使硬化性樹脂組合物膜硬化，藉此，獲得硬化性樹脂組合物膜被薄膜材保護之積層體。 Next, a film material (not shown) is attached to the surface of the curable resin composition film. The film material is cut into the protective film 16 as described later. After the film material is stuck on the surface of the curable resin composition film, the curable resin composition film is hardened by a photo-hardening treatment or a heat-curing treatment, thereby obtaining a laminated body in which the curable resin composition film is protected by the film material. .

接著，針對所獲得之積層體，在要成為黏著層14之側面14b之位置設定切斷線，使用雷射光線而在切斷線將積層體切斷。藉此，獲得之帶有黏著層之蓋玻璃10是在黏著層14之第1主面14a設有保護薄膜16。 Next, a cut line is set for the obtained laminated body at a position to be the side surface 14 b of the adhesive layer 14, and the laminated body is cut at the cut line using laser light. As a result, the cover glass 10 with an adhesive layer is obtained by providing a protective film 16 on the first main surface 14 a of the adhesive layer 14.

附帶一提，若是將預先硬化之黏著層薄膜貼合在透明 面材10上的情況、可精度佳地塗佈樹脂組合物的情況，則省略切斷工程亦無妨。 Incidentally, if the pre-cured adhesive layer film is laminated on the transparent In the case of the surface material 10 and the case where the resin composition can be applied with high accuracy, the cutting process may be omitted.

[車載顯示裝置] [Car display device]

接著，說明本實施形態之車載顯示裝置100。 Next, an in-vehicle display device 100 according to this embodiment will be described.

圖2是表示車載顯示裝置100的示意截面圖。 FIG. 2 is a schematic cross-sectional view showing the in-vehicle display device 100.

如圖2所示，車載顯示裝置100具有凹狀之殼體106。殼體底構件107是殼體106之底板，背光單元102載置在殼體底構件107上，顯示面板104載置在背光單元102上。如此，背光單元102與顯示面板104是收納在殼體106。在殼體106形成有開口部108，顯示面板104是配置在開口部108側。以顯示面板104之與開口部108對應之區域來作為顯示面104a。附帶一提，以背光102與顯示面板104作為主構成構件而構成顯示面板模組100a。 As shown in FIG. 2, the in-vehicle display device 100 includes a concave case 106. The case bottom member 107 is a bottom plate of the case 106, the backlight unit 102 is placed on the case bottom member 107, and the display panel 104 is placed on the backlight unit 102. As such, the backlight unit 102 and the display panel 104 are housed in the case 106. An opening 108 is formed in the case 106, and the display panel 104 is disposed on the opening 108 side. The area of the display panel 104 corresponding to the opening 108 is used as the display surface 104a. Incidentally, the display panel module 100a is configured with the backlight 102 and the display panel 104 as main constituent members.

背光單元102一般是由透鏡片體、擴散片體、導光板、燈、反射板等構成，通常，其中厚度最厚的會是導光板，其決定背光單元整體剛性且身為主構成構件。前述導光板之厚度宜為10mm以下，更宜為7mm以下，更加宜為5mm以下。這是為了藉由窄邊框化來達成殼體之薄型化。另外，前述導光板之厚度宜為1mm以上，更宜為2mm以上，更加宜為4mm以上。這是為了避免當衝擊加在背光單元部之際因為彎曲應力而造成導光板破損。 The backlight unit 102 is generally composed of a lens sheet body, a diffusion sheet body, a light guide plate, a lamp, a reflection plate, and the like. Generally, the thickest one is the light guide plate, which determines the overall rigidity of the backlight unit and is the main constituent member. The thickness of the aforementioned light guide plate is preferably 10 mm or less, more preferably 7 mm or less, and even more preferably 5 mm or less. This is to reduce the thickness of the casing by narrowing the frame. In addition, the thickness of the light guide plate is preferably 1 mm or more, more preferably 2 mm or more, and even more preferably 4 mm or more. This is to prevent the light guide plate from being damaged due to bending stress when an impact is applied to the backlight unit portion.

形成前述導光板之材料之楊氏係數宜為1GPa以上，更宜為2GPa以上，更加宜為3GPa以上，尤其宜為60GPa以上。這是為了提升蓋玻璃之耐衝擊性。 The Young's coefficient of the material forming the aforementioned light guide plate is preferably 1 GPa or more, more preferably 2 GPa or more, more preferably 3 GPa or more, and particularly preferably 60 GPa or more. This is to improve the impact resistance of the cover glass.

形成前述導光板之材料之線膨脹係數宜為800×10-7/℃以下，更宜為600×10-7/℃以下，更加宜為200×10-7/℃以下。這是為了抑制由車內溫度上昇、背光單元內之光源所造成之導光板之熱膨脹，藉由邊框之窄邊框化來達成殼體之薄型化。 The linear expansion coefficient of the material forming the light guide plate is preferably 800 × 10 -7 / ° C or lower, more preferably 600 × 10 -7 / ° C or lower, and even more preferably 200 × 10 -7 / ° C or lower. This is to suppress the thermal expansion of the light guide plate caused by the temperature rise in the car and the light source in the backlight unit, and to achieve a thinner housing by narrowing the frame.

關於形成前述導光板之材料之光學特性，在光路長50mm之條件下，波長400~700nm範圍之內部穿透率之最小值宜為80%以上，內部穿透率之最大值與最小值之差宜為15%以下。上述之內部穿透率之最小值更宜為85%以上，內部穿透率之最大值與最小值之差更宜為13%以下，上述之內部穿透率之最小值更加宜為90%以上，內部穿透率之最大值與最小值之差更加宜為8%以下。 Regarding the optical characteristics of the material forming the light guide plate, the minimum value of the internal transmittance in the wavelength range of 400 to 700 nm should be more than 80% under the condition of the optical path length of 50 mm, and the difference between the maximum and minimum internal transmittance Should be below 15%. The minimum value of the above-mentioned internal penetration is more preferably 85% or more, the difference between the maximum value and the minimum of the internal penetration is more preferably 13% or less, and the minimum value of the internal penetration is more than 90%. , The difference between the maximum value and the minimum value of the internal transmittance is more preferably 8% or less.

形成前述導光板之材料只要是滿足上述之條件且完成後之車載顯示裝置100滿足後述之式(I)，則未特別限制。關於形成前述導光板之材料，具體而言宜為壓克力樹脂、聚碳酸酯、玻璃等，其中又以玻璃為佳。這是因為楊氏係數佳，且從殼體與背光單元之高強度化之達成、起因於熱及濕氣之膨脹小、殼體之薄型化的觀點而言佳。玻璃亦可以是經過強化處理，強化處理方法雖然不論是化學性或物理性皆可，但宜為化學強化。另外，玻璃之端面宜為經過去角加工。更加宜為在去角加工後進行化學強化。這是為了避免因為車輛顯示裝置之振動而造成導光板從端面部破裂。 The material for forming the aforementioned light guide plate is not particularly limited as long as the completed vehicle-mounted display device 100 satisfies the above-mentioned conditions and satisfies the formula (I) described later. Regarding the material for forming the aforementioned light guide plate, specifically, acrylic resin, polycarbonate, glass, etc. are preferred, and glass is preferred. This is because the Young's coefficient is good, and from the viewpoint of achieving high strength of the housing and the backlight unit, small expansion due to heat and moisture, and thinness of the housing. Glass can also be strengthened. Although the method of strengthening treatment can be either chemical or physical, it should be chemically strengthened. In addition, the glass end surface should be chamfered. It is more preferable to perform chemical strengthening after deburring. This is to prevent the light guide plate from being broken from the end surface due to the vibration of the vehicle display device.

另外，關於顯示面板104之構成及殼體106(包含 殼體底構件107)之材質等，只要車載顯示裝置100滿足後述之式(I)，則未特別限制。殼體底構件107之外形之形狀及大小是配合車載顯示裝置100之外形而適宜地決定。最近，車載顯示裝置100在設計上是令顯示面板模組100a亦薄板化。於是，因為顯示面板104之外形一般是長方形等之矩形，此情況下，殼體底構件107之外形宜為矩形。關於殼體底構件107之平面視點下之大小，若將蓋玻璃12與顯示面板104之境界部稱作CG背面高低差部300，則宜為以從最背面垂直看時將此CG背面高低差部300全部覆蓋的方式，將殼體底構件107貼合於下部。這是為了在後述之頭部衝擊試驗中表示優良之耐衝擊性。殼體底構件107之大小更宜為與蓋玻璃12相同或是更甚於此之大小。 The structure of the display panel 104 and the housing 106 (including The material of the case bottom member 107) is not particularly limited as long as the in-vehicle display device 100 satisfies the formula (I) described later. The shape and size of the outer shape of the case bottom member 107 are appropriately determined in accordance with the outer shape of the in-vehicle display device 100. Recently, the in-vehicle display device 100 is designed to reduce the thickness of the display panel module 100a. Therefore, since the outer shape of the display panel 104 is generally a rectangle such as a rectangle, in this case, the outer shape of the housing bottom member 107 should be rectangular. Regarding the size of the case bottom member 107 in the plane view point, if the boundary portion between the cover glass 12 and the display panel 104 is referred to as the CG back level difference portion 300, it is preferable to view the CG back level difference when viewed from the back surface vertically In a manner that the entire portion 300 is covered, the case bottom member 107 is attached to the lower portion. This is for showing excellent impact resistance in a head impact test described later. The size of the case bottom member 107 is more preferably the same as or more than the size of the cover glass 12.

從顯示面板端至蓋玻璃端為止之非顯示區域是寬廣的情況下，宜為以覆蓋此CG背面高低差部300的方式將殼體底構件107貼合於下部。 In the case where the non-display area from the display panel end to the cover glass end is wide, it is preferable to attach the case bottom member 107 to the lower part so as to cover the CG back level difference portion 300.

附帶一提，亦可以在殼體底構件107之例如下面側，更貼合有一片以上之別的板狀構件。前述板狀構件亦宜為以從最背面垂直看時將此CG背面高低差部300全部覆蓋的方式，貼合於下部。這亦是為了在後述之頭部衝擊試驗中顯示優良之耐衝擊性。前述板狀構件之大小更宜為與蓋玻璃12相同或是更甚於此之大小。 Incidentally, one or more other plate-like members may be attached to the bottom portion 107 of the housing, for example, on the lower side. The aforementioned plate-shaped member may be attached to the lower portion in such a manner that the step portion 300 on the back of the CG is entirely covered when viewed vertically from the outermost surface. This is also for showing excellent impact resistance in a head impact test described later. The size of the aforementioned plate-like member is more preferably the same as or more than that of the cover glass 12.

如圖2所示，在殼體106之開口部108，從顯示面板104之顯示面104a至殼體106之端面106a具有高低差。 As shown in FIG. 2, the opening 108 of the casing 106 has a height difference from the display surface 104 a of the display panel 104 to the end surface 106 a of the casing 106.

帶有黏著層之蓋玻璃10是在令保護薄膜16剝離之後， 填埋殼體106之開口部108般地將黏著層14貼合於顯示面板104之顯示面104a。藉此，從車載顯示裝置100之顯示面104a至殼體106之端面106a是被蓋玻璃12所覆蓋。此蓋玻璃12是作為車載顯示裝置100之顯示面104a之保護構件而發揮功能。 After the cover glass 10 with the adhesive layer is peeled off from the protective film 16, The opening portion 108 of the landfill body 106 adheres the adhesive layer 14 to the display surface 104 a of the display panel 104. Thereby, from the display surface 104 a of the in-vehicle display device 100 to the end surface 106 a of the casing 106 is covered by the cover glass 12. This cover glass 12 functions as a protective member of the display surface 104 a of the in-vehicle display device 100.

如此，本發明之車載顯示裝置具有以蓋玻璃作為第1層、並從該第1層積層到第n層為止之構件。具體而言，舉例來說，若是上述之車載顯示裝置100，則具有至少令蓋玻璃12(第1層)、顯示面板104(第2層)、背光單元102(第3層)、及殼體底構件107(第4層)這樣之4層依此順序積層之構成。另外，車載顯示裝置亦可以是未具有背光單元而具有至少令蓋玻璃(第1層)、顯示面板(第2層)、及殼體底構件(第3層)這樣之3層依此順序積層之構成。例如，當顯示面板是有機EL面板、PDP面板的情況下，會成為不具有背光單元之上述構成。 As described above, the in-vehicle display device of the present invention includes a cover glass as a first layer, and a member from the first layer to the n-th layer. Specifically, for example, if the vehicle-mounted display device 100 described above has at least the cover glass 12 (first layer), the display panel 104 (second layer), the backlight unit 102 (third layer), and the housing The bottom member 107 (fourth layer) has four layers laminated in this order. In addition, the in-vehicle display device may have three layers such as a cover glass (first layer), a display panel (second layer), and a case bottom member (third layer) without a backlight unit in this order. Of the composition. For example, when the display panel is an organic EL panel or a PDP panel, the configuration described above does not include a backlight unit.

附帶一提，實際上，在蓋玻璃(第1層)與顯示面板(第2層)之間存在有黏著層。黏著層之處置是如後述。 Incidentally, in fact, there is an adhesive layer between the cover glass (first layer) and the display panel (second layer). The handling of the adhesive layer is described later.

上述之車載顯示裝置雖然是具有以蓋玻璃作為第1層之構件(亦即，作為顯示面側之表層之第1層之構件)且從該第1層之下一層起以成為積層狀的方式令1種類或複數種類之構件依序載置、積層之構成，但在此之積層是表示各構成構件依序集合成此順序之形態、或是依序組裝成此順序之形態之構成，各構成構件並不需要是接合來進行積層，另外，可以是一部分或全體隔著間隔來進行積層，另外， 亦可以是一部分被包圍或重疊之構造，包含各種變化之積層構成之形態。 The above-mentioned on-vehicle display device has a structure in which a cover glass is used as a first layer (that is, a first layer as a surface layer on the display surface side) and a layer is formed from the layer below the first layer A structure in which one kind or plural kinds of components are sequentially placed and stacked, but the stacking here means a structure in which the constituent components are sequentially assembled into this order, or are sequentially assembled into a form in this order. The constituent members do not need to be laminated for bonding, but may be laminated for a part or the whole at intervals. It can also be a part of a structure that is surrounded or overlapped, and contains a variety of layers.

話說，關於車載顯示裝置，會對蓋玻璃要求即便在車輛之衝撞事故時被乘員之頭部等撞到亦不破裂之優良的耐衝擊性。 In other words, as for the on-vehicle display device, the cover glass is required to have an excellent impact resistance that does not break even if it is hit by the head of an occupant in a vehicle collision accident.

本發明人們發現到當具有上述構成之車載顯示裝置滿足下述式(I)時，蓋玻璃之耐衝擊性優良。 The present inventors have found that when an in-vehicle display device having the above configuration satisfies the following formula (I), the cover glass has excellent impact resistance.

式(I)......P≦0.0302t1 2+0.0039t1+0.0478 Formula (I) ... P ≦ 0.0302t 1 2 + 0.0039t 1 +0.0478

其中，式(I)中，P=E1/(E1t1 2+...+Entn 2)，E1：蓋玻璃之楊氏係數(單位：GPa)，t1：蓋玻璃之厚度(單位：mm)，En：第n層之構件之楊氏係數(單位：GPa)，tn：第n層之厚度(單位：mm)。 Among them, in formula (I), P = E 1 / (E 1 t 1 2 + ... + E n t n 2 ), E 1 : Young's coefficient of cover glass (unit: GPa), t 1 : cover Thickness of glass (unit: mm), E n : Young's coefficient (unit: GPa) of the nth layer member, t n : thickness of nth layer (unit: mm).

附帶一提，上式中，n是2以上之整數。 Incidentally, in the above formula, n is an integer of 2 or more.

在後述之[實施例]會顯示當滿足式(I)時蓋玻璃之耐衝擊性優良。亦即，在[實施例]中，與未滿足式(I)的情況下(比較例)蓋玻璃會破裂之情形相比，滿足式(I)的情況(實施例)是顯示蓋玻璃不會破裂之情形。 [Examples] to be described later will show that the cover glass is excellent in impact resistance when Formula (I) is satisfied. That is, in the [Example], compared with the case where the cover glass is broken when the formula (I) is not satisfied (Comparative Example), the case where the formula (I) is satisfied (Example) shows that the cover glass does not The situation of rupture.

附帶一提，舉例來說，若是上述之車載顯示裝置，則因為有蓋玻璃(第1層)、顯示面板(第2層)、背光單元(第3層)、及殼體底構件(第4層)這樣之4層構造，故上述P是如以下般地表示。 Incidentally, for example, if it is the above-mentioned vehicle display device, because it has a cover glass (first layer), a display panel (second layer), a backlight unit (third layer), and a housing bottom member (fourth layer) ) With such a four-layer structure, the above-mentioned P is expressed as follows.

P=E1/(E1t1 2+E2t2 2+E3t3 2+E4t4 2) P = E 1 / (E 1 t 1 2 + E 2 t 2 2 + E 3 t 3 2 + E 4 t 4 2 )

E1：蓋玻璃之楊氏係數(單位：GPa) E 1 : Young's coefficient of cover glass (unit: GPa)

t1：蓋玻璃之厚度(單位：mm) t 1 : thickness of cover glass (unit: mm)

E2：顯示面板之楊氏係數(單位：GPa) E 2 : Young's coefficient of display panel (unit: GPa)

t2：顯示面板之厚度(單位：mm) t 2 : thickness of display panel (unit: mm)

E3：背光單元之楊氏係數(單位：GPa) E 3 : Young's coefficient of backlight unit (unit: GPa)

t3：背光單元之厚度(單位：mm) t 3 : thickness of backlight unit (unit: mm)

E4：殼體底構件之楊氏係數(單位：GPa) E 4 : Young's coefficient of the shell bottom member (unit: GPa)

t4：殼體底構件之厚度(單位：mm)。 t 4 : thickness of the bottom member of the casing (unit: mm).

附帶一提，雖然背光單元是令由板厚為厚之玻璃板、聚碳酸酯板、壓克力樹脂等所成之導光板、反射型偏光薄膜、亮度提升薄膜等幾種薄的功能薄膜積層而構成，但因為上述導光板支配背光單元之剛性，故將導光板之楊氏係數當作背光單元之楊氏係數來計算。 Incidentally, although the backlight unit is made of several thin functional films, such as a light guide plate made of a thick glass plate, a polycarbonate plate, and an acrylic resin, a reflective polarizing film, and a brightness enhancement film, etc. Structure, but because the light guide plate controls the rigidity of the backlight unit, the Young's coefficient of the light guide plate is calculated as the Young's coefficient of the backlight unit.

蓋玻璃之楊氏係數(E1)宜為60~80GPa，更宜為70~80GPa。 The Young's coefficient (E 1 ) of the cover glass is preferably 60 to 80 GPa, and more preferably 70 to 80 GPa.

顯示面板之楊氏係數(E2)宜為60~80GPa，更宜為70~80GPa。 The Young's coefficient (E 2 ) of the display panel is preferably 60 to 80 GPa, and more preferably 70 to 80 GPa.

背光單元之楊氏係數(E3)宜為1~90GPa，更宜為2~90GPa，更加宜為60~90GPa。 The Young's coefficient (E 3 ) of the backlight unit should be 1 to 90 GPa, more preferably 2 to 90 GPa, and even more preferably 60 to 90 GPa.

殼體底構件之楊氏係數(E4)宜為40~250GPa，更宜為150~250GPa。附帶一提，即便顯示面板、背光單元及殼體是將複數之材料複合而構成之複合材料亦無妨。此情況下，複合材料整體之楊氏係數宜落在上述數值範圍。 The Young's coefficient (E 4 ) of the shell bottom member should be 40 ~ 250GPa, more preferably 150 ~ 250GPa. Incidentally, even if the display panel, the backlight unit, and the casing are composite materials composed of a plurality of materials, it is not a problem. In this case, the Young's coefficient of the composite material as a whole should fall within the above numerical range.

各構件之楊氏係數是藉由拉伸試驗(JIS K7161、JIS K7113)來測定。 The Young's coefficient of each member is determined by tensile test (JIS K7161, JIS K7113).

蓋玻璃之厚度(t1)是0.5~2.5mm，宜為0.7~2mm，更宜為1.3~2mm。 The thickness (t 1 ) of the cover glass is 0.5 to 2.5 mm, preferably 0.7 to 2 mm, and more preferably 1.3 to 2 mm.

顯示面板之厚度(t2)宜為1~2mm，更宜為1.1~1.3mm。 The thickness (t 2 ) of the display panel is preferably 1 to 2 mm, and more preferably 1.1 to 1.3 mm.

背光單元之厚度(t3)宜為1~10mm，更宜為2~6mm，更加宜為3~5mm。 The thickness (t 3 ) of the backlight unit is preferably 1 to 10 mm, more preferably 2 to 6 mm, and even more preferably 3 to 5 mm.

殼體底構件之厚度(t4)宜為0.5~4mm，更宜為1~4mm。 The thickness (t 4 ) of the bottom member of the shell should be 0.5 ~ 4mm, more preferably 1 ~ 4mm.

各構件之厚度是圖2中之上下方向之長度。 The thickness of each member is the length in the up-down direction in FIG. 2.

附帶一提，在上述之車載顯示裝置中，實際上，從蓋玻璃(第1層)至第n層為止之構件之至少其中一層是黏著層。舉例來說，在上述之4層構造中，在蓋玻璃12(第1層)與顯示面板104(第2層)之間配置有黏著層14(稱作第1.5層)。 Incidentally, in the above-mentioned vehicle-mounted display device, in fact, at least one of the members from the cover glass (the first layer) to the n-th layer is an adhesive layer. For example, in the four-layer structure described above, an adhesive layer 14 (referred to as a 1.5 layer) is disposed between the cover glass 12 (the first layer) and the display panel 104 (the second layer).

在此，在有考慮黏著層之楊氏係數(E1.5)及厚度(t1.5)的情況下，上述P是如以下般地表示。 Here, when the Young's coefficient (E 1.5 ) and thickness (t 1.5 ) of the adhesive layer are considered, the above-mentioned P is expressed as follows.

P=E1/(E1t1 2+E1.5t1.5 2+E2t2 2+E3t3 2+E4t4 2) P = E 1 / (E 1 t 1 2 + E 1.5 t 1.5 2 + E 2 t 2 2 + E 3 t 3 2 + E 4 t 4 2 )

然而，與其他層之楊氏係數相較之下，黏著層之楊氏係數(E1.5)是充分地小，而且，其厚度(t1.5)是例如5~400μm。 因此，與其他之「E1t1 2」~「E4t4 2」之值相比，上述P中之「E1.5t1.5 2」之值是小到可以無視。 However, compared with the Young's coefficient of the other layers, the Young's coefficient (E 1.5 ) of the adhesive layer is sufficiently small, and its thickness (t 1.5 ) is, for example, 5 to 400 μm. Therefore, compared with other values of “E 1 t 1 2 ” to “E 4 t 4 2 ”, the value of “E 1.5 t 1.5 2 ” in P above is so small that it can be ignored.

所以，即便是在積層構造(第1層~第n層)中存在有黏著層的情況，本實施形態在考慮式(I)之際可以將黏著層視作不存在。換句話說，可以把「E1.5t1.5 2」之值當作0(零)來求P值。 Therefore, even in the case where there is an adhesive layer in the multilayer structure (the first layer to the n-th layer), this embodiment can consider the adhesive layer to be non-existent when considering formula (I). In other words, the value of "E 1.5 t 1.5 2 " can be regarded as 0 (zero) to find the value of P.

再者，針對式(I)中之P進行說明。 In addition, P in Formula (I) is demonstrated.

首先，針對當將異種材料以與彎曲之中性軸平行的形式而層狀配置之梁(組合梁)受到彎曲的情況下之曲率(各層都相同)及在各層產生之應力，考慮理論算式之式(1)~(3)(Ai：i層之截面積，Ei：i層之楊氏係數，I1：i層之截面2次矩，n：層數)。 First, regarding the curvature (all layers are the same) and the stress generated in each layer when a beam (composite beam) in a layered configuration is dissimilar to the bending neutral axis parallel to the bending neutral axis, consider the theoretical formula. Equations (1) to (3) (A i : cross-sectional area of the i-layer, E i : Young's coefficient of the i-layer, I 1 : second moment of the cross-section of the i-layer, n: number of layers).

‧中性軸之位置 ‧Position of neutral axis

Figure TWI678341B_D0001
Figure TWI678341B_D0001

‧曲率 ‧Curvature

Figure TWI678341B_D0002
Figure TWI678341B_D0002

Figure TWI678341B_D0003
Figure TWI678341B_D0003

現在，考慮如圖3所示之4層構造的情況下，可表示成下述式(4)~(6)(M：彎矩，y’：中性軸之位置，y：離開中性軸之距離)。 Now, considering a four-layer structure as shown in FIG. 3, it can be expressed as the following formulae (4) to (6) (M: bending moment, y ': position of the neutral axis, y: away from the neutral axis Distance).

[數4] σ1=E 1{My/(E 1 I 1+E 2 I 2+E 3 I 3+E 4 I 4)} σ2=E 2{My/(E 1 I 1+E 2 I 2+E 3 I 3+E 4 I 4)} σ3=E 3{My/(E 1 I 1+E 2 I 2+E 3 I 3+E 4 I 4)} σ4=E 4{My/(E 1 I 1+E 2 I 2+E 3 I 3+E 4 I 4)} (4) [Number 4] σ 1 = E 1 { My / ( E 1 I 1 + E 2 I 2 + E 3 I 3 + E 4 I 4 )} σ 2 = E 2 { My / ( E 1 I 1 + E 2 I 2 + E 3 I 3 + E 4 I 4 )} σ 3 = E 3 { My / ( E 1 I 1 + E 2 I 2 + E 3 I 3 + E 4 I 4 )} σ 4 = E 4 { My / ( E 1 I 1 + E 2 I 2 + E 3 I 3 + E 4 I 4 )) (4)

[數5]y'={bE 1 h 1(h 1/2)+bE 2 h 2(h 1+h 2/2)+bE 3 h 3(h 1+h 2+h 3/2)+bE 4 h 4(h 1+h 2+h 3+h 4/2)}/(bE 1 h 1+bE 3 h 2+bE 3 h 3+bE 4 h 4) (5) [Formula 5] y '= {bE 1 h 1 (h 1/2) + bE 2 h 2 (h 1 + h 2/2) + bE 3 h 3 (h 1 + h 2 + h 3/2) + bE 4 h 4 (h 1 + h 2 + h 3 + h 4/2)} / (bE 1 h 1 + bE 3 h 2 + bE 3 h 3 + bE 4 h 4) (5)

[數6]I 1=bh 1 3/12+bh 1(y'-h 1/2)2 I 2=bh 2 3/12+bh 2(h 1+h 2/2-y')2 I 3=bh 3 3/12+bh 3(h 1+h 2+h 3/2-y')2 I 4=bh 4 3/12+bh 4(h 1+h 2+h 3+h 4/2-y')2 (6) [Formula 6] I 1 = bh 1 3 /12 + bh 1 (y '- h 1/2) 2 I 2 = bh 2 3/12 + bh 2 (h 1 + h 2 / 2- y') 2 I 3 = bh 3 3/12 + bh 3 (h 1 + h 2 + h 3 / 2- y ') 2 I 4 = bh 4 3/12 + bh 4 (h 1 + h 2 + h 3 + h 4 / 2- y ') 2 (6)

在此，考慮蓋玻璃/顯示面板/背光單元/殼體底構件這樣之4層構造的情況下，為了讓蓋玻璃不會破裂，在身為第1層之蓋玻璃之背面發生之應力宜為低。亦即，可得知式(4)之σ1越小越好，而構成層之各構件之楊氏係數越高或層越厚則σ1變小。 Here, in the case of a four-layer structure such as cover glass / display panel / backlight unit / case bottom member, in order to prevent the cover glass from breaking, the stress occurring on the back surface of the cover glass which is the first layer is preferably low. That is, it can be seen that the smaller σ 1 in the formula (4) is, the better, and the higher the Young's coefficient of each member constituting the layer or the thicker the layer, the smaller σ 1 becomes.

從式(6)可得知截面2次矩是與蓋玻璃厚度之3次方相關，但由於在式(4)會乘上第1層之背面位置(y)、亦即厚度，故藉由式(4)及(6)導出以下述式表示之P值，來作為判定蓋玻璃破裂/不破裂之參數。 From equation (6), it can be known that the second moment of the cross section is related to the third power of the thickness of the cover glass. Equations (4) and (6) derive a P value expressed by the following equation as a parameter for judging whether the cover glass is cracked or not.

P=E1/(E1t1 2+E2t2 2+E3t3 2+E4t4 2) P = E 1 / (E 1 t 1 2 + E 2 t 2 2 + E 3 t 3 2 + E 4 t 4 2 )

顯示面板是液晶面板、有機EL面板、PDP、電子墨水型面板等，亦可具有觸控面板等。 The display panel is a liquid crystal panel, an organic EL panel, a PDP, an electronic ink type panel, or the like, and may include a touch panel or the like.

附帶一提，液晶面板以外之顯示面板的情況下，例如有機EL面板、PDP的情況下，以不包含背光單元之構成來計算。 Incidentally, in the case of a display panel other than a liquid crystal panel, for example, in the case of an organic EL panel or a PDP, the calculation is performed without a backlight unit.

關於如此之車載顯示裝置，舉例來說是立起地設在儀表板上之外置類型之汽車導航裝置、埋進車輛之儀表板之內置類型之汽車導航裝置等，再者，亦可以是汽車導航裝置以外之裝置(例如儀表面板)。 As for such a vehicle-mounted display device, for example, a car navigation device of an external type which is erected on an instrument panel, a car navigation device of a built-in type which is embedded in a vehicle's instrument panel, etc. Devices other than navigation devices (such as instrument panels).

實施例 Examples

以下雖然是藉由實施例等來具體地說明本發明之實施形態，但本發明並非被這些例所限定。 Although the embodiments of the present invention will be specifically described below with reference to examples, the present invention is not limited to these examples.

<蓋玻璃之準備> <Preparation of Cover Glass>

準備對鋁矽酸鹽玻璃施加了化學強化處理之強化玻璃(旭硝子公司製商品名「Dragontrail」(登錄商標)，壓應力層之厚度：38μm，壓應力層之表面壓應力：774MPa)來作為蓋玻璃。 Tempered glass (chemical name "Dragontrail" (registered trademark) manufactured by Asahi Glass Co., Ltd., with a thickness of a compressive stress layer: 38 μm and a surface compressive stress of the compressive layer: 774 MPa) was prepared as a cover glass.

<帶有黏著層之蓋玻璃之製作> <Making Cover Glass with Adhesive Layer>

在蓋玻璃之第1主面將OCA薄膜(日榮化工公司製「MHM-FWD」)積層而製作出帶有黏著層之蓋玻璃。 An OCA film ("MHM-FWD" manufactured by Nissei Chemical Co., Ltd.) was laminated on the first main surface of the cover glass to produce a cover glass with an adhesive layer.

<試驗體之製作> <Production of test body>

首先，為了進行使剛體模型衝撞之試驗(亦稱作「頭部衝擊試驗」)，而製作出試驗體200。基於圖4~圖6來說明試驗體200。 First, in order to perform a test (also referred to as a "head impact test") in which a rigid body model collides, a test body 200 is produced. The test body 200 will be described based on FIGS. 4 to 6.

圖4是表示試驗體的立體圖。圖5是圖4之A-A線截面圖。圖6是表示試驗體的平面圖。 FIG. 4 is a perspective view showing a test body. Fig. 5 is a sectional view taken along the line A-A in Fig. 4. FIG. 6 is a plan view showing a test body.

試驗體200是設想外置類型之車載顯示裝置100。 The test body 200 is an in-vehicle display device 100 in which an external type is assumed.

車載顯示裝置100具有身為薄板之殼體底構件107，在殼體底構件107之周緣部上配置有4個在內部帶有肋之殼體框109。藉由殼體底構件107與4個殼體框109而在中央區域形成具有矩形之凹部之殼體106，在此凹部配置有以背光單元102與顯示面板104作為主構成構件之顯示面板模組100a。 The in-vehicle display device 100 includes a case bottom member 107 as a thin plate, and four case frames 109 having ribs inside are arranged on a peripheral portion of the case bottom member 107. The housing bottom member 107 and the four housing frames 109 form a housing 106 having a rectangular recess in the central region, and a display panel module with the backlight unit 102 and the display panel 104 as main constituent members is arranged in the recess. 100a.

背光單元102之上面側之端部是藉由雙面膠帶207等而與顯示面板104之下面側之端部接著。因此，在顯示面板104與背光單元102之間存在有與雙面膠帶207等之厚度相當之空隙。關於由此空隙造成之間隔，從背光單元102至顯示面板是0.5~1.5mm。附帶一提，雖然一般是令空隙為1.5mm，但視狀況可以不需要是1.5mm，亦可以沒有空隙。此空隙是藉由雙面膠帶207等之接著構件之厚度來控制，因應狀況，有時也會不使用。顯示面板104之上面是比配置在周圍之殼體框109之上面還要低位置，成為凹部。帶有黏著層之蓋玻璃10之黏著層14是埋住此凹部般地貼合在顯示面板104之上面。蓋玻璃12與顯示面板104之境界部是成為CG背面高低差部300。在蓋玻璃12之側端面之外側且殼體框109之上面，配置有殼體端框110。 An end portion on the upper surface side of the backlight unit 102 is connected to an end portion on the lower surface side of the display panel 104 by a double-sided tape 207 or the like. Therefore, a gap corresponding to the thickness of the double-sided tape 207 or the like exists between the display panel 104 and the backlight unit 102. Regarding the interval caused by the gap, the distance from the backlight unit 102 to the display panel is 0.5 to 1.5 mm. Incidentally, although the gap is generally 1.5 mm, depending on the situation, it may not need to be 1.5 mm, and there may be no gap. This gap is controlled by the thickness of the adhering member such as the double-sided tape 207, and may not be used depending on the situation. The upper surface of the display panel 104 is lower than the upper surface of the surrounding casing frame 109 and becomes a recessed portion. The adhesive layer 14 of the cover glass 10 with an adhesive layer is buried on the display panel 104 and buried on the display panel 104. The boundary portion between the cover glass 12 and the display panel 104 is the CG back level difference portion 300. A case end frame 110 is disposed outside the side end surface of the cover glass 12 and above the case frame 109.

如此之車載顯示裝置100是藉由配置在1個殼體框109內之空隙之螺栓211而固定在與身為平板之支持板215一體化之實心之固定肋213。 In this way, the on-vehicle display device 100 is fixed to a solid fixing rib 213 integrated with a support plate 215 that is a flat plate by a bolt 211 disposed in a gap in a case frame 109.

附帶一提，實際之車載顯示裝置宜為以從最背面垂直 看時將CG背面高低差部300全部覆蓋的方式，將殼體底構件107貼合於下部。另外，若如圖5所示地以從CG背面高低差部300至車載顯示裝置100之外周為止之距離作為L2，令L1為L2/2，則殼體底構件107宜為如圖5(a)所示，使用令一端會比顯示面板104之截面視點尺寸大L1以上之尺寸(亦即殼體底構件107之1邊是比顯示面板104之1邊大2L1以上)，將CG背面高低差部300全部覆蓋。這是因為，可期待在頭部衝擊試驗之際減低在CG背面高低差部300之拉伸應力之效果。再者，更宜為使用令一端會比顯示面板104之截面視點尺寸大L1以上、L2以下之尺寸，將CG背面高低差部300全部覆蓋。另外，更加宜為如圖5(b)所示，使用令一端會比顯示面板104之截面視點尺寸大L2之尺寸(亦即從垂直來看車載顯示裝置100時之平面視點之大小相等)，將CG背面高低差部300全部覆蓋。因為這是最可期待在頭部衝擊試驗之際減低在CG背面高低差部300之拉伸應力之效果。 Incidentally, the actual vehicle-mounted display device is preferably such that the bottom part 107 of the CG is attached to the lower part in such a manner that the height difference portion 300 on the back of the CG is completely covered when viewed vertically from the back. Further, as shown in FIG 5 when a distance outside of the display device 100 by week from the CG 300 to the back vehicle height difference portion as L 2, so that L 1 is L 2/2, the bottom housing member 107 is suitably in FIG. As shown in 5 (a), use a size that makes one end larger than the cross-sectional viewpoint size of the display panel 104 by L 1 or more (that is, one side of the housing bottom member 107 is 2 L 1 or more larger than one side of the display panel 104) The CG back surface step portion 300 is completely covered. This is because the effect of reducing the tensile stress in the step portion 300 on the CG back surface can be expected during the head impact test. Furthermore, it is more suitable to cover the entire CG back level difference portion 300 with a size that has one end larger than L 1 and less than L 2 in the cross-sectional viewpoint size of the display panel 104. In addition, as shown in FIG. 5 (b), it is more appropriate to use a size that makes one end larger than the cross-sectional view size of the display panel 104 by L 2 (that is, the plane view point is the same when the vehicle display device 100 is viewed vertically) , The entire CG back level difference portion 300 is covered. This is because the effect of reducing the tensile stress in the step portion 300 on the CG back surface is most expected during the head impact test.

另外，即便是實際之車載顯示裝置，亦宜為在CG背面高低差部300將殼體底構件107貼合於下部，並對殼體框109採用在幾個地方設有肋之肋構造，藉此提高剛性。這是因為殼體框109在顯示面板設計上常常使用樹脂材，而由於樹脂之緣故可能會有剛性差之情形，故可藉由採用上述肋構造，在頭部衝擊試驗獲得優良之耐衝擊性。附帶一提，關於殼體106，可以是殼體框109與殼體底構件107、殼體端框110個別分離之構造，亦可以是整個一體化之成形品，亦可以是一部分一體化之構造，並未特別限定。 In addition, even in an actual on-board display device, it is suitable to attach the bottom case 107 to the lower portion of the CG back level difference portion 300, and adopt a rib structure having ribs in several places for the case frame 109. This improves rigidity. This is because the housing frame 109 often uses a resin material in the design of the display panel, and the rigidity may be poor due to the resin. Therefore, by using the rib structure described above, excellent impact resistance can be obtained in the head impact test. . Incidentally, the housing 106 may be a structure in which the housing frame 109, the housing bottom member 107, and the housing end frame 110 are separately separated, or may be an integrated molded product or a part of an integrated structure. Is not particularly limited.

在所製作出之試驗體200，在各例將蓋玻璃12、顯示面板104、背光單元102、及殼體底構件107變更而令楊氏係數及厚度是如下述表1及表2所示般地改變。 In the manufactured test body 200, the cover glass 12, the display panel 104, the backlight unit 102, and the case bottom member 107 were changed in each example so that the Young's coefficient and thickness are as shown in Tables 1 and 2 below. To change.

附帶一提，在試驗體200，以鈉鈣玻璃代替而作為顯示面板104，以聚碳酸酯板代替而作為背光單元102。 Incidentally, in the test body 200, soda-lime glass was replaced as the display panel 104, and a polycarbonate plate was replaced as the backlight unit 102.

另外，使用鋁板(楊氏係數：68.6GPa)或鐵板(楊氏係數：206GPa)來作為殼體底構件107。 In addition, as the case bottom member 107, an aluminum plate (Young's coefficient: 68.6 GPa) or an iron plate (Young's coefficient: 206 GPa) is used.

附帶一提，上述之由通常之TFT液晶面板所成之顯示面板的情況下，其構成基本上是偏光板/玻璃基板(例如0.55mm之板厚)/液晶層/玻璃基板(例如0.55mm之板厚)/偏光板之積層構成，但因為偏光板及液晶層是剛性低，故上述液晶面板之玻璃板支配剛性。所以，以構成液晶面板之玻璃基板之楊氏係數來代用而計算。 Incidentally, in the case of a display panel made of a general TFT liquid crystal panel as described above, its structure is basically a polarizing plate / glass substrate (for example, a thickness of 0.55 mm) / a liquid crystal layer / glass substrate (for example, a 0.55 mm (Thickness) / polarizing plate, but because the polarizing plate and the liquid crystal layer have low rigidity, the glass plate of the liquid crystal panel dominates the rigidity. Therefore, the Young's coefficient of the glass substrate constituting the liquid crystal panel is used instead.

附帶一提，圖6中以H1~H3及W1~W3表示之尺寸是H1：120mm、H2：150mm、H3：250mm、W1：173mm、W2：250mm、W3：350mm，殼體底構件107之尺寸是比顯示面板104大之160mm×260mm。 Incidentally, the dimensions indicated by H 1 to H 3 and W 1 to W 3 in FIG. 6 are H 1 : 120 mm, H 2 : 150 mm, H 3 : 250 mm, W 1 : 173 mm, W 2 : 250 mm, W 3 : 350mm, the size of the case bottom member 107 is 160mm × 260mm larger than that of the display panel 104.

另外，在試驗體200，其他之各部是如下。 The other parts of the test body 200 are as follows.

‧黏著層14...厚度：175μm，縱：120mm，橫：173mm，儲存剪切彈性模數：8kPa；‧雙面膠帶207...住友3M公司製「Scotch PBT-10」，膠帶寬：5mm，膠帶厚：0.5mm；‧殼體框109...材質：ABS，板厚：1mm；‧殼體端框110...材質：ABS，板厚：2mm，寬：5mm； ‧螺栓211...材質：鐵；‧固定肋213...材質：鐵，尺寸：19mm×100mm×50mm；‧支持板215...材質：鐵，板厚：9mm，縱：250mm，橫：350mm。 ‧Adhesive layer 14 ... thickness: 175μm, vertical: 120mm, horizontal: 173mm, storage shear modulus of elasticity: 8kPa; ‧ double-sided tape 207 ... "Scotch PBT-10" made by Sumitomo 3M company, adhesive bandwidth: 5mm, tape thickness: 0.5mm; ‧shell frame 109 ... material: ABS, plate thickness: 1mm; ‧shell end frame 110 ... material: ABS, plate thickness: 2mm, width: 5mm; ‧Bolt 211 ... Material: Iron; ‧Fixed rib 213 ... Material: Iron, Size: 19mm × 100mm × 50mm; ‧Support plate 215 ... Material: Iron, Plate thickness: 9mm, Vertical: 250mm, Horizontal : 350mm.

<耐衝擊性之評價(頭部衝擊試驗)> <Evaluation of Impact Resistance (Head Impact Test)>

接下來，將試驗體200之支持板215設置於水平面，在車載顯示裝置100與支持板215之間夾進2層吸收衝擊緩衝墊(KCC商會公司製「CF45」，厚度：25.4mm)後，使未圖示之球狀之剛體模型(材質：鐵，直徑：165mm，質量：19.6kg)以衝撞時之能量會成為152.5J的方式，以衝撞速度3.9m/s從794mm之高度落下而衝撞蓋玻璃12之第2主面12d之衝撞位置P(參考圖6)。 Next, the support plate 215 of the test body 200 was set on a horizontal plane, and two layers of shock absorbing cushions ("CF45" manufactured by KCC Chamber of Commerce, thickness: 25.4 mm) were sandwiched between the vehicle display device 100 and the support plate 215. Spherical rigid body model (material: iron, diameter: 165mm, mass: 19.6kg), not shown, so that the energy at the time of the collision will be 152.5J, and the collision will fall at a collision speed of 3.9m / s from a height of 794mm and collide. The collision position P of the second main surface 12d of the cover glass 12 (see FIG. 6).

試驗方法是參考日本國土交通省所表示之「道路運送車輛之保安基準」之「第20條乘車裝置」之「附頁28儀表面板之衝擊吸收之技術基準」(以下單單稱作「基準」)。在此「基準」是使球狀之剛體模型(材質：鐵，直徑：165mm，質量：6.8kg)以衝撞速度6.7m/s射出而衝撞，衝撞時之能量會成為152.4J。 The test method is referred to the "Article 20 Riding Device", "Supplementary Sheet 28 Technical Standards for Shock Absorption of Instrument Panels" of the "Guidelines for the Security of Road Transport Vehicles" indicated by the Ministry of Land, Infrastructure, Transport and Tourism (hereinafter referred to as "benchmarks" ). Here, the "reference" is to make a spherical rigid body model (material: iron, diameter: 165mm, mass: 6.8kg) shoot at a collision speed of 6.7m / s and collide. The energy during the collision will be 152.4J.

亦即，在使用到試驗體200之頭部衝擊試驗，令衝撞時之能量會與「基準」同等。 That is, in the head impact test using the test body 200, the energy at the time of the collision will be equal to the "reference".

讓剛體模型衝撞之蓋玻璃12上之衝撞位置P(參考圖6)是當從上面看試驗體200時比顯示面板模組100a之中心還要偏向與固定肋213側為相反側之位置。更詳細而言，衝撞位置P不是在殼體框109上，而是在顯示面板104上，採 用從顯示面板104之端朝10mm內側之位置。 The collision position P (refer to FIG. 6) on the cover glass 12 that caused the rigid body model to collide is more deflectable than the center of the display panel module 100 a from the center of the display panel module 100 a when viewed from above. In more detail, the collision position P is not on the housing frame 109, but on the display panel 104. Use a position facing 10 mm from the end of the display panel 104.

使剛體模型衝撞之結果是繪製在圖7所示之圖表，蓋玻璃未破裂的情況下是「O」，蓋玻璃破裂的情況下是「x」。附帶一提，只要是「O」，則可評價成顯示出即便在衝撞事故時被乘員之頭部等撞到亦不破裂之優良耐衝擊性。將結果表示在下述表1及表2。 The result of the collision of the rigid body model is plotted in the graph shown in FIG. 7. When the cover glass is not broken, it is “O”, and when the cover glass is broken, it is “x”. Incidentally, if it is "O", it can be evaluated to show excellent impact resistance that does not break even when hit by the head of an occupant or the like in a collision accident. The results are shown in Tables 1 and 2 below.

從圖7所示之圖表可明白得知，與未滿足式(I)的情況下(比較例)蓋玻璃會破裂之情形相比，滿足式(I)的情況(實施例)下蓋玻璃不會破裂。 It is clear from the graph shown in FIG. 7 that the lower cover glass does not satisfy the condition (example) when the cover glass is broken compared to the case where the cover glass is broken when the formula (I) is not satisfied (comparative example). Will break.

產業利用性 Industrial availability

根據本發明，可得到蓋玻璃之耐衝擊性優良之車載顯示裝置，對搭載在汽車等車輛之車載顯示裝置而言有用。 According to the present invention, an in-vehicle display device having excellent impact resistance of a cover glass can be obtained, which is useful for an in-vehicle display device mounted on a vehicle such as an automobile.

附帶一提，在此引用2014年8月22日所申請之日本專利申請案第2014-169322號之說明書、申請專利範圍、圖式及摘要之全內容，作為本發明之揭示而採用。 Incidentally, the entire contents of the specification, patent application scope, drawings, and abstract of Japanese Patent Application No. 2014-169322 filed on August 22, 2014 are incorporated herein as the disclosure of the present invention.

Claims (7)

一種車載顯示裝置，是以表層之蓋玻璃作為第1層、並將到第n層為止之構件積層而構成之車載顯示裝置；從前述蓋玻璃至前述第n層為止之構件中包含有顯示面板與殼體底構件；前述蓋玻璃是板厚為0.5~2.5mm、楊氏係數為60~80GPa、且表面壓應力層之厚度10μm為以上之強化玻璃；前述顯示面板是楊氏係數為60~80GPa；前述殼體底構件是楊氏係數為40~250GPa；前述車載顯示裝置是滿足下述式(I)之車載顯示裝置；式(I)......P≦0.0302t1 2+0.0039t1+0.0478(其中，式(I)中，P=E1/(E1t1 2+...+Entn 2)，E1：蓋玻璃之楊氏係數(單位：GPa)，t1：蓋玻璃之厚度(單位：mm)，En：第n層之構件之楊氏係數(單位：GPa)，tn：第n層之厚度(單位：mm)，在此，n是3以上之整數)。A vehicle-mounted display device is a vehicle-mounted display device comprising a cover glass of a surface layer as a first layer and a layer of components up to the n-th layer; the components from the cover glass to the n-th layer include a display panel And the case bottom member; the cover glass is a strengthened glass with a plate thickness of 0.5 to 2.5 mm, a Young's coefficient of 60 to 80 GPa, and a thickness of the surface compressive stress layer of 10 μm or more; the aforementioned display panel has a Young's coefficient of 60 to 80GPa; the bottom member of the housing has a Young's coefficient of 40 ~ 250GPa; the vehicle-mounted display device is a vehicle-mounted display device that satisfies the following formula (I); formula (I) ... P ≦ 0.0302t 1 2 + 0.0039t 1 +0.0478 (where, in the formula (I), P = E 1 / (E 1 t 1 2 + ... + E n t n 2 ), E 1 : Young's coefficient of cover glass (unit: GPa ), T 1 : thickness of cover glass (unit: mm), E n : Young's coefficient of unit of layer n (unit: GPa), t n : thickness of unit n (unit: mm), here, n is an integer of 3 or more). 如請求項1之車載顯示裝置，其中前述殼體底構件之大小比前述顯示面板之顯示部還大。For example, the vehicle-mounted display device of claim 1, wherein the size of the bottom member of the casing is larger than that of the display portion of the display panel. 如請求項1之車載顯示裝置，其中從前述蓋玻璃至前述第n層為止之構件包含背光單元，前述背光單元具有導光板，前述導光板是由玻璃製成。The on-vehicle display device according to claim 1, wherein the members from the cover glass to the n-th layer include a backlight unit having a light guide plate, and the light guide plate is made of glass. 如請求項1之車載顯示裝置，其中從前述蓋玻璃至前述第n層為止之構件包含顯示面板、背光單元、殼體底構件，前述背光單元載置於前述殼體底構件上，前述顯示面板載置於前述背光單元上。The on-vehicle display device according to claim 1, wherein the components from the cover glass to the nth layer include a display panel, a backlight unit, and a housing bottom member, the backlight unit is placed on the housing bottom member, and the display panel Placed on the backlight unit. 如請求項1之車載顯示裝置，其中從前述蓋玻璃至前述第n層為止之構件之至少其中一層包含黏著層，該黏著層之厚度是5~400μm。For example, the on-vehicle display device of claim 1, wherein at least one of the components from the cover glass to the n-th layer includes an adhesive layer, and the thickness of the adhesive layer is 5 to 400 μm. 如請求項1之車載顯示裝置，其中前述蓋玻璃之表面壓應力是650MPa以上。The on-vehicle display device according to claim 1, wherein the surface compressive stress of the cover glass is 650 MPa or more. 如請求項1至6之任一項之車載顯示裝置，其中前述蓋玻璃是板厚0.5~2.5mm、表面壓應力層之厚度為10μm以上、具有650MPa以上之表面壓應力之化學強化玻璃。The on-vehicle display device according to any one of claims 1 to 6, wherein the cover glass is a chemically strengthened glass having a plate thickness of 0.5 to 2.5 mm, a thickness of the surface compressive stress layer of 10 μm or more, and a surface compressive stress of 650 MPa or more.
TW104127366A 2014-08-22 2015-08-21 Vehicle display device TWI678341B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-169322 2014-08-22
JP2014169322 2014-08-22

Publications (2)

Publication Number Publication Date
TW201613831A TW201613831A (en) 2016-04-16
TWI678341B true TWI678341B (en) 2019-12-01

Family

ID=55350756

Family Applications (2)

Application Number Title Priority Date Filing Date
TW104127366A TWI678341B (en) 2014-08-22 2015-08-21 Vehicle display device
TW108137498A TWI722605B (en) 2014-08-22 2015-08-21 Vehicle display device

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW108137498A TWI722605B (en) 2014-08-22 2015-08-21 Vehicle display device

Country Status (6)

Country Link
JP (2) JP6418241B2 (en)
KR (1) KR20170048249A (en)
CN (2) CN106604902B (en)
DE (1) DE112015003842B4 (en)
TW (2) TWI678341B (en)
WO (1) WO2016027812A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110588347B (en) 2015-06-05 2022-12-30 Ａｇｃ株式会社 Vehicle-mounted display device
JP6702067B2 (en) * 2016-08-03 2020-05-27 Ａｇｃ株式会社 Cover member and display device
KR20200027462A (en) * 2017-07-07 2020-03-12 코닝 인코포레이티드 Vehicle interior system with curved cover glass and display or touch panel and method of forming the same
EP4219244A3 (en) 2017-09-13 2023-08-16 Corning Incorporated Vehicle interior systems having a curved cover glass with improved impact performance and methods for forming the same
US11065960B2 (en) 2017-09-13 2021-07-20 Corning Incorporated Curved vehicle displays
JP6588061B2 (en) * 2017-09-21 2019-10-09 Ｎｅｃパーソナルコンピュータ株式会社 Display device and electronic device
JP7275471B2 (en) * 2017-10-02 2023-05-18 Ａｇｃ株式会社 Transparent substrate and display device
JP6569722B2 (en) * 2017-12-14 2019-09-04 株式会社Ｊｖｃケンウッド Liquid crystal lighting device, head-up display, and lighting method
KR20200131853A (en) 2018-03-13 2020-11-24 코닝 인코포레이티드 Vehicle interior system with crack-resistant curved cover glass and its formation method
CN108398831A (en) * 2018-03-21 2018-08-14 惠州市华星光电技术有限公司 Liquid crystal display die set and electronic equipment
JP7322362B2 (en) * 2018-05-17 2023-08-08 Ａｇｃ株式会社 Laminates and displays
JP6747481B2 (en) * 2018-08-10 2020-08-26 Ａｇｃ株式会社 Display device
CN117198155A (en) 2019-06-19 2023-12-08 Ａｇｃ株式会社 Glass substrate
WO2021044877A1 (en) * 2019-09-03 2021-03-11 Ａｇｃ株式会社 Glass substrate unit, cover glass assembly, and vehicle-mounted display device
CN114080561A (en) * 2020-06-26 2022-02-22 日本板硝子株式会社 Display device
JP7511101B2 (en) 2021-04-09 2024-07-05 Ａｇｃ株式会社 In-vehicle display device
JPWO2023032934A1 (en) * 2021-08-30 2023-03-09
CN118202400A (en) 2021-11-04 2024-06-14 Ａｇｃ株式会社 Display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102332228A (en) * 2010-09-23 2012-01-25 微软公司 The reinforcement type display device
WO2013179882A1 (en) * 2012-05-28 2013-12-05 旭硝子株式会社 Cover glass of flat panel display apparatus for transport machine, and flat panel display apparatus for transport machine

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6133969A (en) * 1999-05-28 2000-10-17 Rainbow Displays, Inc. Maintaining three-dimensional tolerances while manufacturing AMLCD displays
JP2003249181A (en) * 2002-02-25 2003-09-05 Matsushita Electric Ind Co Ltd Impact-resistant film for flat display panel and flat display panel
JP2004259256A (en) * 2003-02-05 2004-09-16 Nitto Denko Corp Transparent lamination body, pen input image display device, and image display method
JP2005023133A (en) * 2003-06-30 2005-01-27 Nitto Denko Corp Adhesive composition, adhesive layer, filter for plasma display panel, and plasma display panel display device
JP4586550B2 (en) * 2004-01-29 2010-11-24 旭硝子株式会社 Envelope for flat display and flat display using the same
JP4679272B2 (en) * 2005-07-04 2011-04-27 セントラル硝子株式会社 Input / output integrated display device and protective glass plate
WO2007102238A1 (en) * 2006-03-08 2007-09-13 Sharp Kabushiki Kaisha Display device
CN101477421B (en) * 2009-01-21 2011-08-17 友达光电股份有限公司 Touch control panel structure
JP5416546B2 (en) * 2009-10-23 2014-02-12 日東電工株式会社 Transparent substrate
KR20120112549A (en) * 2009-12-17 2012-10-11 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Display panel assembly and methods of making same
JP5516442B2 (en) * 2011-01-26 2014-06-11 旭硝子株式会社 Method for manufacturing cover glass for display device
JPWO2013027651A1 (en) * 2011-08-23 2015-03-19 Hoya株式会社 Method for producing tempered glass substrate and tempered glass substrate
WO2013176150A1 (en) * 2012-05-25 2013-11-28 旭硝子株式会社 Chemically strengthened glass plate, cover glass, chemically strengthened glass with touch sensor, and display device
JP5376032B1 (en) * 2012-05-25 2013-12-25 旭硝子株式会社 Chemically tempered glass plate, cover glass and display device
EP2855147A1 (en) * 2012-05-31 2015-04-08 Corning Incorporated Stiff interlayers for laminated glass structures
WO2013187281A1 (en) * 2012-06-11 2013-12-19 シャープ株式会社 Display device
TWI522690B (en) * 2012-07-26 2016-02-21 揚昇照明股份有限公司 Hybrid light guide plate and display device
JPWO2014042062A1 (en) * 2012-09-12 2016-08-18 シャープ株式会社 Display device
KR102031778B1 (en) * 2012-12-06 2019-10-14 엘지디스플레이 주식회사 Display Device Including Touch Panel And Method Of Fabricating The Same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102332228A (en) * 2010-09-23 2012-01-25 微软公司 The reinforcement type display device
WO2013179882A1 (en) * 2012-05-28 2013-12-05 旭硝子株式会社 Cover glass of flat panel display apparatus for transport machine, and flat panel display apparatus for transport machine

Also Published As

Publication number Publication date
WO2016027812A1 (en) 2016-02-25
CN110264874A (en) 2019-09-20
CN110264874B (en) 2021-02-09
TW202003399A (en) 2020-01-16
DE112015003842B4 (en) 2024-08-01
JP2019019054A (en) 2019-02-07
JP6631673B2 (en) 2020-01-15
TW201613831A (en) 2016-04-16
CN106604902B (en) 2019-08-06
TWI722605B (en) 2021-03-21
KR20170048249A (en) 2017-05-08
JPWO2016027812A1 (en) 2017-06-08
DE112015003842T5 (en) 2017-05-18
JP6418241B2 (en) 2018-11-07
CN106604902A (en) 2017-04-26

Similar Documents

Publication Publication Date Title
TWI678341B (en) Vehicle display device
JP6677270B2 (en) In-vehicle display device
WO2018025779A1 (en) Cover member and display device
CN209070264U (en) Transparent base and display device
JP6603154B2 (en) Display device and electronic device
WO2016017530A1 (en) Display device
CN113518765A (en) Laminated glass
US20230328907A1 (en) Glass article for vehicle interior system having a bendable display unit
CN110824747B (en) display device
JP7511101B2 (en) In-vehicle display device
JP6702067B2 (en) Cover member and display device
TW201500239A (en) Vehicle display device
JP2023140867A (en) Window glass for vehicle window
TW202401108A (en) Glass article and display device
JP2021113146A (en) Glass laminate and production method thereof
JP2015068010A (en) Panel with glass