TWI463233B - Color electronic paper structure and manufacturing method thereof - Google Patents

Color electronic paper structure and manufacturing method thereof Download PDF

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TWI463233B
TWI463233B TW100112745A TW100112745A TWI463233B TW I463233 B TWI463233 B TW I463233B TW 100112745 A TW100112745 A TW 100112745A TW 100112745 A TW100112745 A TW 100112745A TW I463233 B TWI463233 B TW I463233B
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color
layer
electronic paper
paper structure
protection layer
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TW100112745A
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TW201241533A (en
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Fang An Shu
Ted Hong Shinn
Yao Chou Tsai
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Priority to CN201110430449.8A priority patent/CN102736346B/zh
Priority to US13/348,231 priority patent/US8755109B2/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00634—Production of filters
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
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    • 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
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    • 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
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    • B32—LAYERED PRODUCTS
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
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    • B32—LAYERED PRODUCTS
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    • B32—LAYERED PRODUCTS
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    • 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
    • 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
    • B32B2309/12—Pressure
    • 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
    • B32B2551/00—Optical elements
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
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    • 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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Description

彩色電子紙結構及其製造方法
本發明係有關於一種彩色電子紙結構，特別是關於一種可避免色度褪變(color fading)的彩色電子紙結構。
隨著電泳顯示技術的進步，可顯示彩色畫面的電子紙裝置已開始出現在市場上。
請參照圖1，其繪示一習知彩色電子紙裝置之一局部剖面圖。如圖1所示，該彩色電子紙裝置由下至上包含一前面板110、一彩色光阻層120、一透明黏膠層130、以及一外板140。
其中，前面板110包含有一電泳顯示層及一像素電極層以控制該彩色電子紙裝置各像素的亮度。
彩色光阻層120係位於前面板110上方，且其具有R、G、B三種色料，以過濾前面板110所發出的光線，從而分別透出紅、藍、綠之色光。
透明黏膠層130係覆蓋於彩色光阻層120上方，用以與彩色光阻層120黏合。
外板140係位於透明黏膠層130上方而與透明黏膠層130黏合。
然而，該彩色電子紙裝置在組裝完成後卻易發生色度褪變，而嚴重影響到彩色電子紙的顯示品質。設法使彩色光阻層的R、G、B色料具有高穩定度─不易發生化學反應─或許是一種避免色度褪變的解決方法，然而要獲致高穩定度的色料，付出的成本─包括時間和金錢─可能會很高，不利於產品的競爭力。
為解決前述習知彩色電子紙裝置之問題，有必要對彩色電子紙裝置之結構做徹底的分析，以提出可避免色度發生褪變的有效對策，從而提升彩色電子紙裝置之顯示品質。
本發明之一目的在於揭露一種彩色電子紙結構，其可有效防止色度褪變，從而提升彩色電子紙裝置之顯示品質。
本發明之另一目的在於揭露一種彩色電子紙結構之製造方法，其可有效防止色度褪變，從而提升彩色電子紙裝置之顯示品質。
為達到上述之目的，一彩色電子紙結構乃被提出，其具有一前面板、一彩色光阻層、一護色層、一透明黏膠層、以及一外板。
該前面板包含有一電泳顯示層及一像素電極層以控制該彩色電子紙裝置各像素的亮度。
該彩色光阻層係位於該前面板之上方，且其具有R、G、B三種色料，以過濾該前面板所發出的光線，從而分別透出紅、藍、綠之色光。
該護色層係覆蓋於該彩色光阻層上方之一熱塑性透明材料層。
該透明黏膠層係覆蓋於該護色層上方，用以與該護色層黏合。
該外板係位於該透明黏膠層上方而與該透明黏膠層黏合。
為達到上述之目的，一種製造彩色電子紙結構之方法乃被提出，其具有以下步驟：
步驟a.在一前面板上方沉積一彩色光阻層。
步驟b.將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層。
步驟c.將一透明黏膠層之下表面貼附在該護色層之上表面。
步驟d.使該透明黏膠層之上表面與一外板貼合。
為達到上述之目的，另一種製造金屬氧化物半導體結構之方法乃被提出，其具有以下步驟：
步驟a.在一前面板上方沉積一彩色光阻層。
步驟b.將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層。
步驟c.將一透明黏膠層之上表面貼附在一外板的下表面。
步驟d.將該透明黏膠層之下表面與該護色層的上表面貼合。
為使　貴審查委員能進一步瞭解本發明之結構、特徵及其目的，茲附以圖式及較佳具體實施例之詳細說明如后。
經檢視發生色度褪變的圖1彩色電子紙裝置之結構，本案發明人發現彩色光阻層乃因被透明黏膠層侵蝕─在溫度升高時其侵蝕現象更嚴重─而發生色度褪變。
因此，本發明乃在彩色光阻層與透明黏膠層之間增設一護色層(color resist protection layer)以防止透明黏膠層對彩色光阻層的侵蝕，從而解決色度褪變的問題。本發明的設計可廣泛應用於軟性或硬性之彩色電子紙顯示器。
請參照圖2，其繪示本發明彩色電子紙結構一較佳實施例之剖面圖。如圖2所示，該彩色電子紙結構由下至上包含一前面板210、一彩色光阻層220、一護色層230、一透明黏膠層231、以及一外板240。
其中，前面板210包含有一電泳顯示層及一像素電極層以控制該彩色電子紙裝置各像素的亮度。
彩色光阻層220係位於前面板210之上方，且其具有R、G、B三種色料，以過濾前面板210所發出的光線，從而分別透出紅、藍、綠之色光。
護色層230係覆蓋於彩色光阻層220上方之一熱塑性透明材料層，其材料可為壓克力樹脂、矽樹脂、或熱塑性樹脂，而其厚度較佳為1~30μm。由於熱塑性透明材料的熔點較高，故護色層230可有效防止彩色光阻層220被透明黏膠層231侵蝕而影響色度。
透明黏膠層231係覆蓋於護色層230上方，用以與護色層230黏合。
外板240係位於透明黏膠層231上方而與透明黏膠層231黏合。
另外，前面板210可貼附於一TFT陣列背板，其中所述的TFT陣列背板係用以驅動前面板210之所述像素電極層。
依前述之說明，本發明進一步提出一種製造彩色電子紙結構之方法，其具有以下步驟：在一前面板上方沉積一彩色光阻層(步驟a)；將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層(步驟b)；將一透明黏膠層之下表面貼附在該護色層之上表面(步驟c)；以及使該透明黏膠層之上表面與一外板貼合(步驟d)。
在步驟a，該彩色光阻層具有R、G、B三種色料。
在步驟b，較佳為藉由一熱壓程序使該護色層之下表面貼附在該彩色光阻層之上表面，該熱壓程序包括利用一熱滾輪滾壓及經由一脫泡機脫泡(其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡)。該護色層之材料可為壓克力樹脂、矽樹脂、或熱塑性樹脂，而其厚度較佳為1~30μm。
在步驟c，較佳為藉由一熱壓程序使該透明黏膠層之下表面貼附在該護色層之上表面，該熱壓程序包括利用一熱滾輪滾壓及經由一脫泡機脫泡(其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡)。
在步驟d，較佳為藉由一熱壓程序使該外板貼附在該透明黏膠層之上表面，該熱壓程序包括利用一熱滾輪滾壓及經由一脫泡機脫泡(其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡)。
依前述之說明，本發明進一步提出另一種製造彩色電子紙結構之方法，其具有以下步驟：在一前面板上方沉積一彩色光阻層(步驟a)；將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層(步驟b)；將一透明黏膠層之上表面貼附在一外板的下表面(步驟c)；以及將該透明黏膠層之下表面與該護色層的上表面貼合(步驟d)。
在步驟a，該彩色光阻層具有R、G、B三種色料。
在步驟b，較佳為藉由較佳為藉由一熱壓程序使該護色層之下表面貼附在該彩色光阻層之上表面，該熱壓程序包括利用一熱滾輪滾壓及經由一脫泡機脫泡(其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡)。該護色層之材料可為壓克力樹脂、矽樹脂、或熱塑性樹脂，而其厚度較佳為1~30μm。
在步驟c，較佳為藉由一熱壓程序使該透明黏膠層之上表面貼附在該外板的下表面，該熱壓程序包括利用一熱滾輪滾壓及經由一脫泡機脫泡(其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡)。
在步驟d，較佳為藉由一熱滾輪滾壓該外板而使該透明黏膠層之下表面與該護色層的上表面貼合，再經由脫泡機脫泡─其較佳為在40~70℃，大於1大氣壓之工作條件下脫泡。
綜上所述，本發明之彩色電子紙結構可為其彩色光阻層提供一熱塑性材料保護層─其係採用常見的材料且其所涉製程係一般製程─以防止彩色光阻層被透明黏膠層侵蝕而發生色度褪變，故本發明確已改進習知彩色電子紙裝置之缺失。
本案所揭示者，乃較佳實施例，舉凡局部之變更或修飾而源於本案之技術思想而為熟習該項技藝之人所易於推知者，俱不脫本案之專利權範疇。
綜上所陳，本案無論就目的、手段與功效，在在顯示其迥異於習知之技術特徵，且其首先發明合於實用，亦在在符合發明之專利要件，懇請　貴審查委員明察，並祈早日賜予專利，俾嘉惠社會，實感德便。
110、210．．．前面板
120、220．．．彩色光阻層
130、231．．．透明黏膠層
140、240．．．外板
230．．．護色層
圖1繪示一習知彩色電子紙裝置之剖面圖。
圖2繪示本發明彩色電子紙結構一較佳實施例之剖面圖。
210．．．前面板
220．．．彩色光阻層
231．．．透明黏膠層
240．．．外板
230．．．護色層

Claims (14)

  1. 一種彩色電子紙結構，其具有：一前面板；一彩色光阻層，位於該前面板上方；一護色層，係覆蓋於該彩色光阻層上方之一熱塑性透明材料層；一透明黏膠層，覆蓋於該護色層之上方；以及一外板，位於該透明黏膠層之上方。
  2. 如申請專利範圍第1項所述之彩色電子紙結構，其中該前面板包含有一電泳顯示層及一像素電極層。
  3. 如申請專利範圍第2項所述之彩色電子紙結構，其中該彩色光阻層具有R、G、B三種色料，以過濾該前面板所發出的光線，從而分別透出紅、藍、綠之色光。
  4. 如申請專利範圍第3項所述之彩色電子紙結構，其中該護色層之材料係壓克力樹脂、矽樹脂、或熱塑性樹脂。
  5. 如申請專利範圍第4項所述之彩色電子紙結構，其中該護色層之厚度係介於1~30μm之間。
  6. 如申請專利範圍第5項所述之彩色電子紙結構，其進一步具有一TFT陣列背板，貼附於該前面板之下方。
  7. 一種彩色電子紙結構之製造方法，其具有以下步驟：在一前面板上方沉積一彩色光阻層；將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層；將一透明黏膠層下表面貼附在該護色層之上表面；以及使該透明黏膠層之上表面與一外板貼合。
  8. 如申請專利範圍第7項所述之彩色電子紙結構之製造方法，其中所述護色層之下表面係藉由一熱壓程序貼附在該彩色光阻層之上表面。
  9. 如申請專利範圍第8項所述之彩色電子紙結構之製造方法，其中所述的熱壓程序包含利用一熱滾輪及一脫泡機。
  10. 如申請專利範圍第7項所述之彩色電子紙結構之製造方法，其中所述護色層之材料係壓克力樹脂、矽樹脂、或熱塑性樹脂。
  11. 一種彩色電子紙結構之製造方法，其具有以下步驟：在一前面板上方沉積一彩色光阻層；將一護色層之下表面貼附在該彩色光阻層之上表面，其中該護色層係一熱塑性透明材料層；將一透明黏膠層之上表面貼附在一外板的下表面；以及將該透明黏膠層之下表面與該護色層的上表面貼合。
  12. 如申請專利範圍第11項所述之彩色電子紙結構之製造方法，其中所述護色層之下表面係藉由一熱壓程序貼附在該彩色光阻層之上表面。
  13. 如申請專利範圍第12項所述之彩色電子紙結構之製造方法，其中所述的熱壓程序包含利用一熱滾輪及一脫泡機。
  14. 如申請專利範圍第11項所述之彩色電子紙結構之製造方法，其中所述護色層之材料係壓克力樹脂、矽樹脂、或熱塑性樹脂。
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