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TWM639895U - Improved lighting structure of electronic paper display - Google Patents

Improved lighting structure of electronic paper display Download PDF

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Publication number
TWM639895U
TWM639895U TW111214333U TW111214333U TWM639895U TW M639895 U TWM639895 U TW M639895U TW 111214333 U TW111214333 U TW 111214333U TW 111214333 U TW111214333 U TW 111214333U TW M639895 U TWM639895 U TW M639895U
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Taiwan
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refractive index
electronic paper
paper display
lighting module
transparent resin
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TW111214333U
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Chinese (zh)
Inventor
白志強
林孟癸
蔡錦安
楊立業
黃怡菁
崔芷榕
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洋華光電股份有限公司
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Priority to TW111214333U priority Critical patent/TWM639895U/en
Priority to KR2020230000534U priority patent/KR200498876Y1/en
Publication of TWM639895U publication Critical patent/TWM639895U/en
Priority to KR2020230001102U priority patent/KR200499665Y1/en

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • 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 
    • G02F1/165—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  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • 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 
    • G02F1/165—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  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Position Input By Displaying (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

一種改進的電子紙顯示器照明結構(二)，包含一表面蓋板，在其板體四周邊緣區域設有由不透光或低透光率材料所形成的黑框，並於其底表面設有一低折射率透明樹脂層；一照明模組，其具有一導光板及複數點狀光源，所述點狀光源設置在所述導光板的外側端面部位，所述照明模組配置在所述表面蓋板的底面；一第一光學膠層，將所述表面蓋板與所述照明模組貼合；一電子紙顯示模組，其設置在所述照明模組的底面；以及一第二光學膠層，將所述電子紙顯示模組與所述照明模組的導光板底面貼合；其中，所述低折射率透明樹脂層的折射率小於所述第一光學膠層的折射率；藉由所述低折射率透明樹脂層的設置以便在所述表面蓋板與所述照明模組之間形成一全反射介面，革除在黑框部位附近的顯示幕上產生鬼影現象的缺失。An improved electronic paper display lighting structure (2), comprising a surface cover plate, a black frame formed of opaque or low light transmittance materials is provided on the peripheral edge area of the plate body, and a black frame is provided on the bottom surface thereof Low refractive index transparent resin layer; a lighting module, which has a light guide plate and a plurality of point light sources, the point light sources are arranged on the outer end surface of the light guide plate, and the lighting module is arranged on the surface cover The bottom surface of the board; a first optical glue layer, which adheres the surface cover plate to the lighting module; an electronic paper display module, which is arranged on the bottom surface of the lighting module; and a second optical glue layer, bonding the electronic paper display module to the bottom surface of the light guide plate of the lighting module; wherein, the refractive index of the low refractive index transparent resin layer is smaller than the refractive index of the first optical adhesive layer; by The low-refractive-index transparent resin layer is arranged to form a total reflection interface between the surface cover plate and the lighting module, eliminating the ghost phenomenon on the display near the black frame.

Description

改進的電子紙顯示器照明結構(二)Improved lighting structure of electronic paper display (2)

本創作涉及電子紙顯示裝置的技術範疇，尤其是關於電子紙顯示裝置的照明模組的結構改良。 This creation relates to the technical field of the electronic paper display device, especially the improvement of the structure of the lighting module of the electronic paper display device.

電子紙顯示器(E-Paper Display)具有可撓性、寬視角、質輕、高解析度、高對比及室內室外可讀性等模擬紙張的特性，以及低功率消耗等優點，所以已逐漸被廣泛應用在搭配電子裝置使用；電子紙顯示器本身不發光，通常是以環境光作為顯示幕照明光線來源，但在室內空間等環境光線不足之應用場合中，則會導致顯示品質大受影響，因此目前的電子紙顯示器大多會再設置一照明模組來提供輔助照明光線，以確保顯示品質。 Electronic paper display (E-Paper Display) has the characteristics of analog paper such as flexibility, wide viewing angle, light weight, high resolution, high contrast, indoor and outdoor readability, and low power consumption, so it has gradually been widely used. It is used in conjunction with electronic devices; electronic paper displays do not emit light, and usually use ambient light as the light source for the display screen. However, in indoor spaces and other applications where the ambient light is insufficient, the display quality will be greatly affected. Therefore, at present Most of the e-paper displays are equipped with a lighting module to provide auxiliary lighting to ensure display quality.

如圖1及圖2所示，目前的照明模組20的結構大體上是在一導光板21的側邊端面設置一個或多個點狀光源22，導光板21可將點狀光源22轉換成面狀光源，以便對電子紙顯示模組10的顯示幕提供均勻投射的照明光線；照明模組20被配置在表面蓋板30與電子紙顯示模組10的疊層之間，並使用第一光學膠層40及第二光學膠層50將各疊層彼此黏合成一體，其中，在表面蓋板30的底表面四周邊緣區域設有不透光的黑框31作為遮掩邊緣線路結構的裝飾邊框，照明模組的點狀光源22恰於該黑框31的下方，並由第一光學膠層40將導光板21與黑框31部位緊密黏合在一起，但因第一光學膠層40的折射率(Refractive Index)範圍大約在1.47至1.51之間，導光板21(壓克力)的折射率約為1.491，二者折射率非常相近，所以從導光板21側面入射的點狀光源22光線會有部分折射至第一光學膠 層40及表面蓋板30中，並受到該黑框31的影響，使光線的折射、反射不均，導致在黑框31部位附近的顯示幕上產生鬼影現象，形成較為陰暗或明亮的光影紋路SD，這不僅影響美觀也會減損顯示幕的可瞻性，實乃有待改善。 As shown in Figures 1 and 2, the structure of the current lighting module 20 is generally that one or more point light sources 22 are arranged on the side surface of a light guide plate 21, and the light guide plate 21 can convert the point light sources 22 into planar light source, in order to provide evenly projected illumination light to the display screen of the electronic paper display module 10; The optical adhesive layer 40 and the second optical adhesive layer 50 bond the stacked layers together into one body, wherein an opaque black frame 31 is provided on the edge area around the bottom surface of the surface cover plate 30 as a decorative frame covering the edge circuit structure , the point light source 22 of the lighting module is just below the black frame 31, and the light guide plate 21 and the black frame 31 are tightly bonded together by the first optical adhesive layer 40, but due to the refraction of the first optical adhesive layer 40 The range of the Refractive Index is about 1.47 to 1.51, and the refractive index of the light guide plate 21 (acrylic) is about 1.491. The refractive index of the two is very similar, so the light from the point light source 22 incident from the side of the light guide plate 21 will be Partially refracted to the first optical glue Layer 40 and surface cover plate 30, and affected by the black frame 31, the refraction and reflection of light are uneven, resulting in ghosting phenomenon on the display screen near the black frame 31, forming relatively dark or bright light and shadow Texture SD, which not only affects the appearance but also detracts from the visibility of the display screen, really needs to be improved.

有鑑於傳統電子紙顯示器照明結構上的缺失，本創作之主要目的在於提供一種電子紙顯示裝置的照明模組的改進結構，其可革除在黑框部位附近的顯示幕上產生鬼影現象的缺失，使電子紙顯示裝置的照明可達均勻明亮效果。 In view of the deficiency in the lighting structure of the traditional electronic paper display, the main purpose of this creation is to provide an improved structure of the lighting module of the electronic paper display device, which can eliminate the phenomenon of ghosting on the display screen near the black frame , so that the illumination of the electronic paper display device can achieve a uniform and bright effect.

為達上述目的，本創作提供一種改進的電子紙顯示器照明結構(二)，其包含一表面蓋板，在其板體四周邊緣區域設有由不透光或低透光率材料所形成的黑框，並於其底表面設有一低折射率透明樹脂層(Low refractive index transparent resin layer)；一照明模組，其具有一導光板及複數點狀光源，所述點狀光源設置在所述導光板的外側端面部位，所述照明模組配置在所述表面蓋板的底面；一第一光學膠層，將所述表面蓋板與所述照明模組貼合；一電子紙顯示模組，其設置在所述照明模組的底面；以及一第二光學膠層，將所述電子紙顯示模組與所述照明模組的導光板底面貼合。藉由所述低折射率透明樹脂層的設置以便在所述表面蓋板與所述照明模組之間形成一全反射介面，革除在黑框部位附近的顯示幕上產生鬼影現象的缺失。 In order to achieve the above purpose, this creation provides an improved electronic paper display lighting structure (2), which includes a surface cover plate, and black holes formed by opaque or low light transmittance materials are arranged on the peripheral edge area of the plate body. frame, and a low refractive index transparent resin layer (Low refractive index transparent resin layer) is provided on its bottom surface; a lighting module, which has a light guide plate and a plurality of point light sources, and the point light sources are arranged on the guide On the outer end surface of the light board, the lighting module is arranged on the bottom surface of the surface cover; a first optical adhesive layer is used to attach the surface cover to the lighting module; an electronic paper display module, It is arranged on the bottom surface of the lighting module; and a second optical adhesive layer is used to attach the electronic paper display module to the bottom surface of the light guide plate of the lighting module. A total reflection interface is formed between the surface cover plate and the lighting module through the arrangement of the low-refractive-index transparent resin layer, eliminating the ghost phenomenon on the display near the black frame.

根據本創作，其中，所述低折射率透明樹脂層的折射率小於所述第一光學膠層的折射率，其中，所述低折射率透明樹脂層的折射率在1.40以下。 According to the present invention, the refractive index of the low-refractive-index transparent resin layer is smaller than the refractive index of the first optical adhesive layer, wherein the refractive index of the low-refractive-index transparent resin layer is below 1.40.

在一實施列，所述低折射率透明樹脂層與所述第一光學膠層的折射率相同，且所述低折射率透明樹脂層的折射率小於所述導光板的折射率，其中，所述低折射率透明樹脂層的折射率在1.40以下。 In an embodiment, the low refractive index transparent resin layer has the same refractive index as the first optical adhesive layer, and the low refractive index transparent resin layer has a refractive index smaller than that of the light guide plate, wherein the The refractive index of the low refractive index transparent resin layer is below 1.40.

此將於下文中進一步闡明本創作的其他功能及技術特徵，熟習本技術者熟讀文中的說明後即可據以實現本創作。 This will further clarify other functions and technical features of the creation below, and those skilled in the art can realize the creation according to the description in the text.

10:電子紙顯示模組 10: Electronic paper display module

20:照明模組 20: Lighting module

21:導光板 21: Light guide plate

22:點狀光源 22: Point light source

30:表面蓋板 30: surface cover

31:黑框 31: black frame

32:低折射率透明樹脂層 32: low refractive index transparent resin layer

40:第一光學膠層 40: The first optical adhesive layer

50:第二光學膠層 50: The second optical adhesive layer

SD:光影紋路 SD: light and shadow texture

圖1為傳統的電子紙顯示器的平面示意圖。 FIG. 1 is a schematic plan view of a conventional electronic paper display.

圖2為圖1沿II-II截面線的疊層組合結構的側剖面示意圖。 FIG. 2 is a schematic side sectional view of the laminated composite structure along the line II-II in FIG. 1 .

圖3為本創作的疊層組合結構的側剖面示意圖。 Fig. 3 is a schematic side sectional view of the laminated combined structure of the invention.

如圖3顯示本創作電子紙顯示器照明結構的一較佳實施例，其包含電子紙顯示模組10、照明模組20、表面蓋板30、第一光學膠層40以及第二光學膠層50。 Figure 3 shows a preferred embodiment of the lighting structure of the inventive electronic paper display, which includes the electronic paper display module 10, the lighting module 20, the surface cover 30, the first optical adhesive layer 40 and the second optical adhesive layer 50 .

電子紙顯示模組10為一具備低功率消耗及可撓性的反射式顯示器，使用電泳式技術或膽固醇式液晶技術將影像信號以影像畫面呈現在電子紙顯示模組10的顯示面上。 The electronic paper display module 10 is a reflective display with low power consumption and flexibility, and uses electrophoretic technology or cholesteric liquid crystal technology to present image signals on the display surface of the electronic paper display module 10 as image frames.

照明模組20包含一導光板21，在導光板21的一側端面部位設置多個點狀光源22，例如是LED或是Mico LED；其中，點狀光源22從導光板21一側端面投射光線，並使投射光線轉成一向下射出之面光源(Area Light)。導光板21之面積與電子紙顯示模組10的可視區互相吻合，以便對電子紙顯示模 組10的可視區提供良好的光線照明。導光板21的材質選自聚碳酸酯(PC)、聚甲基丙烯酸甲酯(PMMA)、聚酯(PET)材料，但使用的種類並不以前述材料為限。為使導光板21可形成光線亮度均勻分布的面光源，可在導光板21的板體上設置多數個散光點(未顯示於圖面)，用以將來自點狀光源22之入射光轉成均勻化分布在板體的光線；其中，散光點可選用折射率高於該導光板21基材的材料，亦可使用在該導光板21的板體上設置凹入表面的空穴或是突出表面的凸點，並利用散光點在導光板21上的疏、密分佈，以造就導光板21上的光線亮度均勻分布效果。 The lighting module 20 includes a light guide plate 21, and a plurality of point light sources 22, such as LEDs or Mico LEDs, are arranged on one end surface of the light guide plate 21; wherein, the point light sources 22 project light from one end surface of the light guide plate 21. , and turn the projected light into a downward-emitting area light (Area Light). The area of the light guide plate 21 coincides with the visible area of the electronic paper display module 10, so that the electronic paper display module The viewing area of group 10 provides good light illumination. The material of the light guide plate 21 is selected from polycarbonate (PC), polymethyl methacrylate (PMMA), polyester (PET) materials, but the types used are not limited to the aforementioned materials. In order to make the light guide plate 21 form a surface light source with uniform distribution of light brightness, a plurality of astigmatism points (not shown in the drawing) can be set on the body of the light guide plate 21 to convert the incident light from the point light source 22 into Homogenize the light distributed on the plate body; wherein, the astigmatism point can be selected from a material with a higher refractive index than the base material of the light guide plate 21, or can use a cavity or a protrusion on the plate body of the light guide plate 21 to set a concave surface The bumps on the surface, and the sparse and dense distribution of astigmatism points on the light guide plate 21 are used to achieve the effect of uniform distribution of light brightness on the light guide plate 21 .

表面蓋板30為一具有優良機械強度的高透光率的薄板，其材料是選自於各種玻璃、聚甲基丙烯酸甲酯(PMMA)、聚碳酸酯(PC)、聚酯(PET)、環烯烴共聚合物(COC)或環烯烴聚合物(COP)等，但實施範圍不以前述材料為限。其中，在表面蓋板30的底表面的四周邊緣區域設有黑框31，黑框31是由非導電性材料製作而成的不透光或低透光率薄膜層，前述非導電性材料可選用油墨或光阻(photoresist)等材料，但可實施的材料範圍不以此為限；前述非導電性材料可藉由印刷、濺鍍、塗佈等技術手段，於表面蓋板30的底表面周緣部位形成厚度15μm以上的薄膜層。表面蓋板的黑框31可遮蔽位於下方的照明模組20邊緣的點狀光源22及電子紙顯示模組10的周邊線路區，以提升整體裝置的美觀性；另外，在表面蓋板30的底表面設有一低折射率透明樹脂層32，其折射率(Refractive Index)在1.40以下，例如是選用NTT-AT®的壓克力樹脂#18204折射率為1.375。 The surface cover plate 30 is a thin plate with high light transmittance with excellent mechanical strength, and its material is selected from various glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyester (PET), Cycloolefin copolymer (COC) or cycloolefin polymer (COP), etc., but the scope of implementation is not limited to the aforementioned materials. Wherein, a black frame 31 is arranged around the edge area around the bottom surface of the surface cover plate 30, and the black frame 31 is an opaque or low light transmittance film layer made of a non-conductive material, and the aforementioned non-conductive material can be Select ink or photoresist (photoresist) and other materials, but the range of applicable materials is not limited to this; the aforementioned non-conductive materials can be applied to the bottom surface of the surface cover plate 30 by technical means such as printing, sputtering, and coating. A thin film layer with a thickness of 15 μm or more is formed at the peripheral portion. The black frame 31 of the surface cover can shield the point light source 22 located at the edge of the lighting module 20 below and the peripheral circuit area of the electronic paper display module 10, so as to improve the aesthetics of the overall device; in addition, the surface cover 30 A low refractive index transparent resin layer 32 is provided on the bottom surface, and its refractive index (Refractive Index) is below 1.40. For example, NTT-AT ® acrylic resin #18204 has a refractive index of 1.375.

第一光學膠層40以及第二光學膠層50可為一般市售的光學透明膠，例如OCA光學膠(Optical Clear Adhesive)、OCR光學膠(Optical Clear Resin) 或是SCA光學膠(Solid Optically Clear Adhesive)；通常，第一光學膠層40以及第二光學膠層50的折射率範圍大約在1.47至1.51之間。 The first optical adhesive layer 40 and the second optical adhesive layer 50 can be generally commercially available optical transparent adhesives, such as OCA optical adhesive (Optical Clear Adhesive), OCR optical adhesive (Optical Clear Resin) Or SCA optical adhesive (Solid Optically Clear Adhesive); generally, the refractive index range of the first optical adhesive layer 40 and the second optical adhesive layer 50 is approximately between 1.47 and 1.51.

如圖3所示，第二光學膠層50將電子紙顯示模組10與照明模組20的導光板21底面貼合；第一光學膠層40將表面蓋板30與照明模組20貼合，其中，在表面蓋板30底面的低折射率透明樹脂層32具有小於第一光學膠層40的折射率，例如該低折射率透明樹脂層32的折射率為1.375、第一光學膠層40的折射率為1.495，因此可在表面蓋板30與照明模組20之間形成一全反射介面，所以從導光板21側面入射的光線即不會受到該黑框31及表面蓋板30的影響，據此可改善在黑框部位附近的顯示幕上產生鬼影現象的問題。 As shown in FIG. 3 , the second optical adhesive layer 50 adheres the electronic paper display module 10 to the bottom surface of the light guide plate 21 of the lighting module 20 ; the first optical adhesive layer 40 adheres the surface cover 30 to the lighting module 20 , wherein, the low refractive index transparent resin layer 32 on the bottom surface of the surface cover plate 30 has a refractive index smaller than the first optical adhesive layer 40, for example, the refractive index of the low refractive index transparent resin layer 32 is 1.375, the first optical adhesive layer 40 The refractive index is 1.495, so a total reflection interface can be formed between the surface cover plate 30 and the lighting module 20, so the light incident from the side of the light guide plate 21 will not be affected by the black frame 31 and the surface cover plate 30 , so that the problem of ghosting on the display near the black frame can be improved.

此外，根據前述電子紙顯示器照明結構，其中，第一光學膠層40的折射率可設定為該低折射率透明樹脂層32的折射率相同，並令該低折射率透明樹脂層32具有小於導光板21的折射率，例如該低折射率透明樹脂層32的折射率為1.375、導光板21(為壓克力材質時)的折射率約為1.491，因此可在表面蓋板30與照明模組20之間形成一全反射介面，所以從導光板21側面入射的光線即不會受到該黑框31及表面蓋板30的影響，因此改善了在黑框部位附近的顯示幕上產生鬼影現象的問題。 In addition, according to the lighting structure of the aforementioned electronic paper display, the refractive index of the first optical adhesive layer 40 can be set to be the same as the refractive index of the low refractive index transparent resin layer 32, and the low refractive index transparent resin layer 32 has a thickness smaller than that of the conductive material. The refractive index of the light plate 21, for example, the refractive index of the low refractive index transparent resin layer 32 is 1.375, and the refractive index of the light guide plate 21 (when it is made of acrylic) is about 1.491, so it can be used on the surface cover plate 30 and the lighting module 20 forms a total reflection interface, so the light incident from the side of the light guide plate 21 will not be affected by the black frame 31 and the surface cover 30, thus improving the ghost phenomenon on the display screen near the black frame The problem.

儘管已參考附圖並結合具體實施例完整說明本創作，但應理解，前述實施例僅為了便於進一步說明的實施範例，本創作實施方式並不以該說明為限，熟習此項技術人士會明白各種變化及修改，而此類變化及修改應理解為包括於由隨附申請專利範圍所定義的本創作之範疇內。 Although the invention has been fully described with reference to the accompanying drawings and in conjunction with specific embodiments, it should be understood that the aforementioned embodiments are only examples for further description, and the implementation mode of the invention is not limited to this description, and those skilled in the art will understand Variations and modifications, and such changes and modifications should be understood to be included within the scope of the present invention as defined by the appended claims.

10:電子紙顯示模組 10: Electronic paper display module

20:照明模組 20: Lighting module

21:導光板 21: Light guide plate

22:點狀光源 22: Point light source

30:表面蓋板 30: surface cover

31:黑框 31: black frame

32:低折射率透明樹脂層 32: low refractive index transparent resin layer

40:第一光學膠層 40: The first optical adhesive layer

50:第二光學膠層 50: The second optical adhesive layer

Claims (5)

一種改進的電子紙顯示器照明結構(二)，包含：一表面蓋板，在其板體四周邊緣區域設有由不透光或低透光率材料所形成的黑框，並於其底表面設有一低折射率透明樹脂層；一照明模組，其具有一導光板及複數點狀光源，所述點狀光源設置在所述導光板的外側端面部位，所述照明模組配置在所述表面蓋板的底面；一第一光學膠層，將所述表面蓋板與所述照明模組貼合；一電子紙顯示模組，其設置在所述照明模組的底面；以及一第二光學膠層，將所述電子紙顯示模組與所述照明模組的導光板底面貼合。 An improved electronic paper display lighting structure (2), comprising: a surface cover plate, a black frame formed of opaque or low light transmittance material is arranged on the edge area around the plate body, and a black frame is arranged on the bottom surface There is a low refractive index transparent resin layer; a lighting module, which has a light guide plate and a plurality of point light sources, the point light sources are arranged on the outer end surface of the light guide plate, and the lighting module is arranged on the surface The bottom surface of the cover plate; a first optical adhesive layer, which adheres the surface cover plate to the lighting module; an electronic paper display module, which is arranged on the bottom surface of the lighting module; and a second optical An adhesive layer is used to adhere the electronic paper display module to the bottom surface of the light guide plate of the lighting module. 如請求項1所述的改進的電子紙顯示器照明結構(二)，其中，所述低折射率透明樹脂層的折射率小於所述第一光學膠層的折射率。 The improved electronic paper display lighting structure (2) according to Claim 1, wherein the refractive index of the low-refractive index transparent resin layer is smaller than that of the first optical adhesive layer. 如請求項2所述的改進的電子紙顯示器照明結構(二)，其中，所述低折射率透明樹脂層的折射率在1.40以下。 The improved electronic paper display lighting structure (2) according to Claim 2, wherein the refractive index of the low-refractive-index transparent resin layer is below 1.40. 如請求項1所述的改進的電子紙顯示器照明結構(二)，其中，所述低折射率透明樹脂層與所述第一光學膠層的折射率相同，且所述低折射率透明樹脂層的折射率小於所述導光板的折射率。 The improved electronic paper display lighting structure (2) according to claim 1, wherein the low refractive index transparent resin layer has the same refractive index as the first optical adhesive layer, and the low refractive index transparent resin layer The refractive index is smaller than the refractive index of the light guide plate. 如請求項4所述的改進的電子紙顯示器照明結構(二)，其中，所述低折射率透明樹脂層的折射率在1.40以下。 The improved electronic paper display lighting structure (2) according to Claim 4, wherein the refractive index of the low-refractive-index transparent resin layer is below 1.40.
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