TW201250357A - Electrophoretic display - Google Patents

Electrophoretic display Download PDF

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Publication number
TW201250357A
TW201250357A TW100119591A TW100119591A TW201250357A TW 201250357 A TW201250357 A TW 201250357A TW 100119591 A TW100119591 A TW 100119591A TW 100119591 A TW100119591 A TW 100119591A TW 201250357 A TW201250357 A TW 201250357A
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Taiwan
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layer
electrophoretic display
substrate
adhesion
surface stress
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TW100119591A
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English (en)
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TWI457679B (zh
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Chin-Chuan Lai
Yi-Ching Wang
Yuan-Chih Tsai
Chi-Tsan Shen
Lee-Tying Chen
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E Ink Holdings Inc
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Priority to TW100119591A priority Critical patent/TWI457679B/zh
Priority to CN201110215078.1A priority patent/CN102809864B/zh
Priority to US13/471,481 priority patent/US20120307343A1/en
Publication of TW201250357A publication Critical patent/TW201250357A/zh
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Publication of TWI457679B publication Critical patent/TWI457679B/zh
Priority to US14/799,579 priority patent/US20150316828A1/en

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/165Devices 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
    • G02F1/166Devices 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
    • G02F1/167Devices 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133345Insulating layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/1368Active matrix addressed cells in which the switching element is a three-electrode device
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/165Devices 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
    • G02F1/1675Constructional details
    • G02F1/16756Insulating layers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/165Devices 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
    • G02F1/1675Constructional details
    • G02F1/1677Structural association of cells with optical devices, e.g. reflectors or illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/165Devices 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
    • G02F1/1675Constructional details
    • G02F1/1676Electrodes
    • G02F1/16766Electrodes for active matrices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/165Devices 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
    • G02F1/1675Constructional details
    • G02F1/1679Gaskets; Spacers; Sealing of cells; Filling or closing of cells
    • G02F1/1681Gaskets; Spacers; Sealing of cells; Filling or closing of cells having two or more microcells partitioned by walls, e.g. of microcup type
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50Protective arrangements
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2202/00Materials and properties
    • G02F2202/28Adhesive materials or arrangements

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
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  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Description

201250357 六、發明說明: 【發明所屬之技術領域】 本發明是有關於一種電泳顯示器。 【先前技術】 近年來,軟性顯示器以及電子紙與電子蚩 使用的顯示顯示器種類包括液晶顯示器:電泳:二 器、電致變色顯色器與電解析出顯示器。 ·、 電泳顯示器(Electrophoretic Display)為 來控制帶電顏料粒子分布型離,㈣電场 的反射率變顯示區對環境光 = 顯不效果。此顯示器具有以下幾種特點: =量即可觀看;沒有視角的限制以及 低耗電量,疋發展電子紙的重要技術之-。 電泳顯示器中包含有多數個電泳顯示單元 ==多數帶電顏料粒子以及溶劑,帶電顏= =:;:性相反的電極移動,這種現象被稱=。 電尸C帶電粒子的種類、粒徑、濃度,與外加 Ρ強J、为布、方向,及懸浮液的種類、粒子濃度等因 +同的行為。電泳顯示11即依據此特性達到各種 耗目的。藉著控制帶電顏料粒子於每一像素中之 ㈣嫌I在顯示器之顯示表面上表示視覺資訊。通常,溶 電料粒子兩者具有大約相同之比重。因此,縱使 帶電顏料粒子能在先前加上電場所固定之位 罝上維持-段相當長之時間,例如由數分鐘至約二十分 201250357 f。基於上述特性’可預期電泳顯示器且有低耗雷… 者’電冰顯不器可以不需要背面照 ::。再 可產生對人類眼睛柔和且卜t冰顯示器 較於液晶顯示器,電泳顯=之’>色及陰影。且、相 电冰顯不器具有成本優勢。 雖然電泳顯示n具備上述多 的畫面均句性不易控制,這也影塑上:疋:泳顯示器 言,電泳顯示器邊緣常出現二:接又度。舉例而 泳顯示器在量產上’這也造成電 供晝面均勻性良好的電泳顯示器。 冑了 【發明内容】 本發明之一目的係提供一電 的顯示效果。 ’俾能呈現均勻 _本發明之實施方式,此電泳顯示器包含一第一基 板、一電泳顯示層、一第—其柘 * 土 著#。m“ 表面應力層以及-黏 *二ί一基板包含至少一驅動元件以及至少-晝素電 極’旦素電極電性連接驅動元件 、 雷炻μ 士 β β 電泳顯不層配置於晝素 ㈣&第板配置在電泳顯示層上方。表面應力層 於第一基板的下表面。黏著層# · 顯干h Μ ⑭㈣配置在表面應力層與電泳 應力表面應力層與電泳顯示層。上述表面 二、力層與點者制之黏著力為電泳顯 著力的約75%至約125%。 I、黏者層間之黏 根據本發明一實施例,表面應力層與黏著 ^為電泳顯示層與黏著層間之黏著力的約85至約115 。。在另-實施例中’表面應力層與黏著層間之黏著力大 201250357 於或等於電泳顯示層與黏著層間之黏著力。在其他實施例 中,表面應力層可例如為一含氟高分子絕緣材料所製成。 表面應力層的厚度可例如為約0.2 # m至約2 // m。 根據本發明一實施例,電泳顯示層包令—聚乙烯對苯 二曱酸酯(PET)基材以及複數電泳顯示單元配置於聚乙烯 對苯二曱酸酯基材的下表面,此聚乙烯對苯二甲酸酯基材 接觸於黏著層。上述之電泳顯示單元可例如為一微杯式電 泳顯示單元或一微膠囊式電泳顯示單元。 根據本發明一實施例,黏著層可例如為一光硬化膠所 製成。 根據本發明一實施例,第二基板包括一透明基板、一 彩色光阻層以及一透明電極層。彩色光阻層配置在透明基 板上。透明電極層配置在彩色光阻層上,而表面應力層配 置在透明電極層上。 根據本發明一實施例,驅動元件可例如為一薄膜電晶 體或一金屬氧化物半導體電晶體。 【實施方式】 為了使本揭示内容的敘述更加詳盡與完備,下文針對 了本發明的實施態樣與具體實施例提出了說明性的描述; 但這並非實施或運用本發明具體實施例的唯一形式。以下 所揭露的各實施例,在有益的情形下可相互組合或取代, 也可在一實施例中附加其他的實施例,而無須進一步的記 載或說明。 請參照第1圖,其為本發明一實施方式之電泳顯示器 201250357 . 1〇0的剖面示意圖。電泳顯示器100包括有第一基板110、 電冰顯示層120、第二基板130、表面應力層140以及黏著 層 150 〇 第一基板110包含至少一驅動元件112以及至少一晝 素電極114。如圖所示,驅動元件112以及畫素電極114 可形成於第一基板110的上表面lu,且晝素電極114電性 連接於驅動元件H2。在穿透式的顯示裝置中,晝素電極 114可由諸如氧化銦錫(IT〇)、氧化鋅或其他透明導電體所 製成。在反射式的顯示裝置中,晝素電極114可由諸如鋁 或其他不透明金屬所製成。驅動元件112可例如為一薄膜 電晶體或一金屬氧化物半導體電晶體。驅動元件112可用 以控制以及傳遞一電壓訊號至晝素電極U4,並藉由畫素 電極114產生電場而控制電泳顯示層12〇賴示狀態。 電泳顯示層120配置於第一基板11〇之晝素電極114 上方’並可根據晝素電極114的電場狀態而改變顯示狀 態。電泳顯示層120的種類並無特殊限制,只要其可根據 電場強度呈現不同的顏色或不同的光學狀態。在一實施例 中,電泳顯示層120包含複數電泳顯示單元124以及一聚 乙烯對苯二曱酸酯(PET)基材122。電泳顯示單元124可例 如為一微杯式電泳顯示單元或一微膠囊式電泳顯示單元。 電泳顯示單it 124西己置於聚乙稀對笨二曱酸酿基材122的 下表面123。因此,聚乙烯對苯二曱酸酯基材122直接接 7上方的黏著層15〇。在另-實施例中,電泳顯示層12〇 ' 藉由一膠層126而被黏著於第一基板HQ上。
‘ 第二基板130配置於電泳顯示層12〇 H 工·不。第二基板 201250357 130可為一透明基板,例如玻璃基板或其他透明基板。在 一實施例中’電泳顯示器100為一反射式的顯示器,入射 光可經由第二基板130進入電泳顯示層120,然後光線被 電泳顯示層120中的電泳顯示單元124反射後,再經第二 基板130而離開電泳顯示器1〇〇。因此,使用者可在第二 基板130的外側觀看及使用電泳顯示器1〇〇。但是,本發 明亦可使用於穿透式的顯示裝置中。 表面應力層140位於第二基板13〇的下表面,並與黏 著層150相接觸。因此,第二基板13〇不會直接接觸黏著 層150。在一實施例中,表面應力層14〇為一含氟高分子 的絕緣材料所製成,其厚度可為約0.2 //m至約2 /zm。 =此實施例中,可藉由一旋轉塗佈製程,先形成一含氟高 分子的溶液層,然後再經由高溫烘烤而形成表面應力層14〇 於第一基板130的下表面。待表面應力層硬化後,再 以黏著層150與電泳顯示層12〇黏合。 黏著層150配置於表面應力層14〇與電泳顯示層12〇 之間’且接觸電泳顯示| 12〇與表面應力層刚。黏著層 =〇用以黏結第一基板11〇上的電泳顯示層與第二基 ^ ;30上的表面應力们4〇’而使第一基板ιι〇、電泳顯示 获2、第二基板130以及表面應力層140形成密合的封 。在本實施例中,表面應力層140與黏著層150間 :力為電泳顯示層12〇與黏著層15〇間之黏著力的約 。約125%,例如為約85%至約115%。在一實施例 泳顧力I 140與黏著層150間之黏著力大致等於電 〜不胃20與黏著層15〇間之黏著力。在另一實施例中, 201250357 表面應力層140與黏著層150間之黏著力略大於或大致等 於電泳顯示層120與黏著層150間之黏著力。黏著層150 可例如為一紫外光硬化膠所製成。在一實施例中,黏著層 150包覆電泳顯示器1〇〇的外緣1〇2,以增強第一基板no 與第一基板13〇之間的接著強度,並可防止水氣或污染物 進入電泳顯示器100中。 控制表面應力層140與黏著層150之間的黏著力以及 電泳顯示層120與黏著層150之間的黏著力是重要的。第 2A圖繪示本發明一比較例之剖面示意圖。在比較例中,第 二基板130為玻璃基板,黏著層15〇為一紫外光硬化膠, 電泳顯示層120的基材122為PET材料所製成。第二某 130的下表面未設置表面應力層14〇,第二基板13〇直接斑 黏著層150接觸。換言之,黏著層15〇直接將第二基板⑽ ,結在電泳顯示層12〇上。然而,比較例中的黏著層15〇 ,過紫外光照射硬化後’黏著層15〇與電泳顯示層12〇 在局部區域發生㈣縣,且特财易發 =的邊緣處,如第2A圖箭頭F所指處。所以,】 剝離區域發生異常的光學路徑,也因此、、。 在邊緣處的心效果與其他正常區 嚴 =:γ_ε所指的情況二^ 電泳顯示層⑽與第-基板 功能。以·』7^刚的邊緣處喪失正常的顯示 本發明之發明人為改善上述問題,嘗試多種不同的製 201250357 =條:以及不同黏著層材料,均不容易 ;。發明人更進-步究其原因後發現,常用的黏著4: 材:璃破?材料之間的黏著力大於其他種基材 為其斑黏者層15G與玻璃基板之間的黏著力約 jfPET基材122之間黏著力的1.5倍。例如,在相同 、面積下’黏著層15〇與玻璃基板之間的黏著力為約 4’一而黏著層150與pET基材122之間黏著力僅約 g換:之黏著層15〇與第二基板13〇之間的黏著力遠 =黏著層15G與電泳顯示層12G的ρΕΤ基材122之間的 黏著力。t以紫外光照射而使黏著層15〇硬化時,黏著層 150發生收縮(Shrinkage)現象,再因上述黏著力的差異,而 造成黏著層150與電泳顯示層12〇在局部區域發生剝離現 象0 因此,根據本發明之實施方式,在第二基板13〇的下 表面叹置表面應力層14〇,使表面應力層14〇與黏著層 間之黏著力為電泳顯示層12〇與黏著層15〇間之黏著力的 約75 %至約125 °/〇,從而改善上述問題。 請參見第3圖,其為本發明另一實施方式之電泳顯示 器100的剖面示意圖。在本實施方式中,電泳顯示器1〇〇 大致與第1圖繪示之實施方式相同,不同之處在於,第二 基板130包括有一透明基板131、一彩色光阻層is]以及 一透明電極層134。彩色光阻層132配置在透明基板131 的内側表面上,而使電泳顯示裝置100呈現彩色的顯示功 能。詳言之,可在透明基板131上形成圖案化的紅色光阻 層區域132R、綠色光阻層區域132G及藍色光阻層區域 201250357 132B且母一顏色的光阻層區域對應一個晝素電極114〇 因此’可形成全彩的電泳顯示器!⑽。透明電極層134配 置在彩色光阻層U2上,並藉由透明電極層134與畫素電 極114之間形成電場來控制電泳顯示單丨124的顯示狀 態。在上述實施例中,表面應力们4G配置在透明電極層 134的下表面。表面應力層14〇與黏著層15〇相接觸。在 其他實施例中’電泳顯示器⑽可為平面切換(ΐη他狀 Switchmg,IPS)式的顯示器,因此彩色光阻層132上無須配 置透明電極層134。在此實施例中,表面應力| 14〇可配 置在彩色光阻層132上。 雖然本發明已以實施方式揭露如上,然其並非用以限 定本發明,任何熟習此技藝者,在不脫離本發明之 範圍内,當可作各種之更動與潤飾,因此本發明之保護範 圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點與實施 能更明顯易懂,所附圖式之說明如下: 第1圖係繪示本發明-實施方式之電泳顯示器的剖面 不意圖。 第2A及2B圖係繪示本發明一比較例之剖面示意圖。 —第3圖係繪示本發明另一實施方式之電泳顯示:的剖 rtn —r* ·Β* Ι^ι λ ’ 【主要元件符號說明】 201250357 100電泳顯示器 102電泳顯示器外緣 110第一基板 111上表面 112驅動元件 114晝素電極 120電泳顯示層 122基材 123下表面 124電泳顯示單元 126膠層 130第二基板 131透明基板 132彩色光阻層 132R紅色光阻層區域 132G綠色光阻層區域 132B藍色光阻層區域 134透明電極層 140表面應力層 150黏著層 E, F箭頭

Claims (1)

  1. 201250357 七、申請專利範圍: 1· 一種電泳顯示器,包含: 一第一基板,包含至少一驅動元件以及至少一畫素電 極電性連接該驅動元件; 一電泳顯示層,配置於該畫素電極上方; 一第二基板,配置於該電泳顯示層上方; 诅於該第 基板之下表面;以及 衣囟應力層 門曰層’配置於該表面應力層與該電泳顯示層之 3,且接觸該表面應力層與該電泳顯示層; 其中該表面應力層與該黏著 示層與該黏著層間之黏著力的約75%至:=_頁 .如明求項1所述之電泳顯 ^ 與該點著層間之黏著力大於I 1 ’〔、中該表面應力層 層間之黏著力。 、二;该電泳顯示層與該黏著
    4.如請求項1 含氟高分子絕 所述之電泳顯示器, 緣材料所製成。 其中該表面應力層 5.如請求項1 之一厚度為約〇 2 所述之電泳顯示哭 _至約2心 中該表面應力層 201250357 6U項1所述之電泳顯示器,其中該電泳顯示層 ^含-聚乙烯對苯二Ψ_(ΡΕΤ)基材以及複數電泳顯示 早元配,於及聚乙稀對笨二甲酸醋基材的下表面,使該聚 乙烯對苯二曱酸酯基材接觸該黏著層。 仲_、. u貝6所述之電泳顯示器,其中該些電泳顯示 早70為-微杯式電泳顯示單元或一微膠囊式電泳顯示 兀。 8.如請求項1 光硬化膠所製成。 所述之電泳顯示器,其中該黏著層為一 9.如請求項1所述之電泳顯示器,其中該第二基板包 一透明基板; 一彩色光阻層,配置於該透明基板上;以及 一透明電極層,配置於該彩色光阻層上; 其中該表面應力層配置在透明電極層上。 10.如請求項1 為一薄膜電晶體或一 所述之電泳顯示器,其中該驅動元件 金屬氧化物半導體電晶體。
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