TWI436315B - 可撓性顯示裝置 - Google Patents

可撓性顯示裝置 Download PDF

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TWI436315B
TWI436315B TW100105674A TW100105674A TWI436315B TW I436315 B TWI436315 B TW I436315B TW 100105674 A TW100105674 A TW 100105674A TW 100105674 A TW100105674 A TW 100105674A TW I436315 B TWI436315 B TW I436315B
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protective layer
layer
display device
transparent polymer
flexible
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TW201235992A (en
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Ta Nien Luan
You Chi Tsai
Ming Sheng Chiang
Chi Ming Wu
Hung Yi Tsai
Jen Shiun Huang
Wen Chang Lu
Yuan Chih Tsai
Lee Tyng Chen
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E Ink Holdings Inc
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Priority to TW100105674A priority Critical patent/TWI436315B/zh
Priority to CN201110084898.1A priority patent/CN102645810B/zh
Priority to US13/104,181 priority patent/US8482836B2/en
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    • G—PHYSICS
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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
    • 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
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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
    • 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
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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
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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
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/239—Complete cover or casing
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Description

可撓性顯示裝置
本發明是有關於一種顯示裝置，且特別是有關於一種可撓性顯示裝置。
隨著平面顯示技術的進步，愈來愈多的電子產品皆搭載有顯示裝置，尤其是可攜式電子產品(portable electrical product)，如行動電話、電子書裝置(e-book apparatus)、數位相機及個人數位助理(personal digital assistant,PDA)等。由於可攜式電子產品是朝向重量輕且厚度薄的趨勢發展，所以應用在可攜式電子產品的顯示裝置也需具備重量輕且厚度薄的優點。
承上述，可撓性顯示裝置，如可撓性電泳式顯示裝置(flexible electrophoretic display,flexible EPD)及可撓性液晶顯示裝置(flexible liquid crystal display,flexible LCD)等，不但具有重量輕且厚度薄的優點，還具有可撓曲且不易破損的優點，因此可撓性顯示裝置的製造已成為重要的發展趨勢。
習知的可撓性顯示裝置一般包括基板、配置在基板上的顯示層及配置在顯示層上的單一保護層。由於習知可撓性顯示裝置的保護機制僅有單一層的保護層，所以在受到外力衝擊時，保護層難以提供緩衝效果，而使得基板與顯示層上的元件及控制電路容易被損壞。如此，不僅容易導致可撓性顯示裝置無法正常顯示，還會縮短了可撓性顯示裝置的使用壽命。
本發明提供一種可撓性顯示裝置，其耐衝擊性能佳，因此可具有較長的使用壽命。
為達上述優點，本發明提出一種可撓性顯示裝置。此可撓性顯示裝置包括可撓性基板、顯示層、第一保護層及至少一透明高分子膜。顯示層配置於可撓性基板上。第一保護層配置於顯示層上。至少一透明高分子膜配置於第一保護層上。
在本發明的一實施例中，上述之每一透明高分子膜的材料包括光學透明膠(optical clear adhesive,OCA)、聚對苯二甲酸乙二醇酯(polyethylene terephthalate,PET)或聚碳酸脂(polycarbonate,PC)。
在本發明的一實施例中，上述之至少一透明高分子膜的數量為多個，且這些透明高分子膜堆疊於第一保護層上。
在本發明的一實施例中，上述之可撓性顯示裝置更包括一第一封膠層，配置於可撓性基板上並圍繞顯示層與第一保護層。
在本發明的一實施例中，上述之可撓性顯示裝置更包括一第二保護層，配置於至少一透明高分子膜上。
在本發明的一實施例中，上述之第一保護層與第二保護層的材料包括透明塑膠、透明玻璃、半透明塑膠或半透明玻璃。
在本發明的一實施例中，上述之可撓性顯示裝置更包括一第三保護層，配置於可撓性基板的下方。
在本發明的一實施例中，上述之可撓性顯示裝置更包括一第二封膠層，配置於第三保護層上，並圍繞可撓性基板、第一封膠層、至少一透明高分子膜及第二保護層。
在本發明的一實施例中，上述之第一保護層、至少一透明高分子膜及第二保護層覆蓋顯示層，且第一保護層、至少一透明高分子膜及第二保護層所能覆蓋的面積等於或大於顯示層的面積。
在本發明的一實施例中，上述之顯示層為電子紙顯示層。
本發明之可撓性顯示裝置因將透明高分子膜配置於第一保護層上，所以在受到不當的外力衝擊時，透明高分子膜可作為緩衝層，以吸收或消散外力。如此，可減少外力對顯示層與可撓性基板造成的衝擊，以避免可撓性顯示裝置因外力而受損，從而延長可撓性顯示裝置的使用壽命。
為讓本發明之上述和其他目的、特徵和優點能更明顯易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。
圖1繪示為本發明一實施例之可撓性顯示裝置之立體分解示意圖，而圖2繪示為圖1所示之可撓性顯示裝置之剖面示意圖。請參閱圖1與圖2，本實施例的可撓性顯示裝置100包括可撓性基板110、顯示層120、第一保護層130及至少一透明高分子膜140，而本實施例是以多層透明高分子膜140為例。顯示層120配置於可撓性基板110上，而第一保護層130配置於顯示層120上。透明高分子膜140配置於第一保護層130上，更詳細地說，這些透明高分子膜140是堆疊於第一保護層130上。
上述之可撓性基板110係指包含有驅動電路層112(如薄膜電晶體陣列及周邊線路)及驅動元件113(如驅動晶片)之基板，而在圖1中省略了驅動電路層112及驅動元件113。顯示層120可為電子紙顯示層，如電泳層、電濕潤層、膽固醇液晶層等，但不以此為限。此外，第一保護層130的材料可為透明塑膠、透明玻璃、半透明塑膠或半透明玻璃等，但不以此為限。另外，上述每一透明高分子膜140的材料可為光學透明膠、聚對苯二甲酸乙二醇酯或聚碳酸脂等，但透明高分子膜140還可為其他具有高透光性、黏性、彈性且可吸附衝擊力的高分子聚合膜。
相較於先前技術，由於本實施例之可撓性顯示裝置100在第一保護層130上另設有透明高分子膜140，所以在受到外力衝擊時，可藉由透明高分子膜140提供緩衝的效果，以避免顯示層120及可撓性基板110受到損害，進而提升可撓性顯示裝置100的使用壽命。此外，透明高分子膜140的數量及厚度可依據實際需求而設定，本發明並不對透明高分子膜140的數量及厚度作限定。
在本實施例中，可撓性顯示裝置100可更包括第一封膠層150(圖1未繪示)，此第一封膠層150配置於可撓性基板110上並圍繞顯示層120與第一保護層130，以防止顯示層120受到水氣的影響而受損。另外，可撓性顯示裝置100可更包括第二保護層160，其配置於透明高分子膜上140，以進一步提升可撓性顯示裝置100的耐衝擊性。此第二保護層160的材料可為透明塑膠、透明玻璃、半透明塑膠或半透明玻璃等，但不以此為限。
承上述，第一保護層130、透明高分子膜140及第二保護層160覆蓋顯示層120，且第一保護層130、透明高分子膜140及第二保護層160例如是可完全覆蓋顯示層120。換言之，第一保護層130、透明高分子膜140及第二保護層160之與顯示層120相對的表面之面積可等於或大於顯示層120之與第一保護層130相對的表面的面積。
本實施例之可撓性顯示裝置100可更包括第三保護層170與第二封膠層180。第三保護層170配置於可撓性基板110的下方。第二封膠層180配置於第三保護層170上，並圍繞可撓性基板110、第一封膠層150、至少一透明高分子膜140及第二保護層160。此外，第一封膠層150與第二封膠層180是在不影響可撓性顯示裝置100的可視範圍的前提下，沿可撓性顯示裝置100的邊緣配置。如此，可進一步防止水氣造成可撓性基板110及顯示層120受損。另外，上述之第一封膠層150與第二封膠層180可為熱塑型、熱固型、紫外線(ultraviolet,UV)固化型或室溫固化型高分子硬化膠，但不以此為限。
綜上所述，本發明之可撓性顯示裝置因將透明高分子膜配置於第一保護層上，且位於可撓性基板與顯示層的上方，所以在受到不當的外力衝擊時，透明高分子膜可作為緩衝層，以吸收或消散外力。如此，可減少外力對顯示層與可撓性基板造成的衝擊，以避免可撓性顯示裝置因外力而受損，從而可延長可撓性顯示裝置的使用壽命。
雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，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。
100．．．可撓性顯示裝置
110．．．可撓性基板
112．．．薄膜電晶體
113．．．驅動元件
120．．．顯示層
130．．．第一保護層
140．．．透明高分子膜
150．．．第一封膠層
160．．．第二保護層
170．．．第三保護層
180．．．第二封膠層
圖1繪示為本發明一實施例之可撓性顯示裝置之立體分解示意圖。
圖2繪示為圖1所示之可撓性顯示裝置之剖面示意圖。
100．．．可撓性顯示裝置
110．．．可撓性基板
112．．．薄膜電晶體
113．．．驅動元件
120．．．顯示層
130．．．第一保護層
140．．．透明高分子膜
150．．．第一封膠層
160．．．第二保護層
170．．．第三保護層
180．．．第二封膠層

Claims (7)

  1. 一種可撓性顯示裝置，包括：一可撓性基板；一顯示層，配置於該可撓性基板上；一第一保護層，配置於該顯示層上；至少一透明高分子膜，配置於該第一保護層上；一第二保護層，配置於該至少一透明高分子膜上；一第三保護層，配置於該可撓性基板的下方；以及一第二封膠層，配置於該第三保護層上，並圍繞該可撓性基板、該第一封膠層、該至少一透明高分子膜及該第二保護層。
  2. 如申請專利範圍第1項所述之可撓性顯示裝置，其中每一透明高分子膜的材料包括光學透明膠、聚對苯二甲酸乙二醇酯或聚碳酸脂。
  3. 如申請專利範圍第1項所述之可撓性顯示裝置，其中該至少一透明高分子膜的數量為多個，且該些透明高分子膜堆疊於該第一保護層上。
  4. 如申請專利範圍第1項所述之可撓性顯示裝置，更包括一第一封膠層，配置於該可撓性基板上並圍繞該顯示層與該第一保護層。
  5. 如申請專利範圍第1項所述之可撓性顯示裝置，其中該第一保護層與第二保護層的材料包括透明塑膠、透明玻璃、半透明塑膠或半透明玻璃。
  6. 如申請專利範圍第1項所述之可撓性顯示裝置，其中該第一保護層、該至少一透明高分子膜及該第二保護層覆蓋該顯示層，且該第一保護層、該至少一透明高分子膜及該第二保護層所能覆蓋的面積等於或大於該顯示層的面積。
  7. 如申請專利範圍第1項所述之可撓性顯示裝置，其中該顯示層為電子紙顯示層。
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KR20140141924A (ko) * 2013-06-03 2014-12-11 삼성디스플레이 주식회사 윈도우 구조물 및 윈도우 구조물을 포함하는 표시 장치의 제조 방법
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CN105629543B (zh) * 2016-01-04 2019-03-01 京东方科技集团股份有限公司 一种柔性液晶显示面板及显示装置
US20170212051A1 (en) * 2016-05-17 2017-07-27 Carlos Magno De Lacerda Glass Screen Protector with Adhered Print, Process for Authenticating a Maker of Glass Screen Protector with Ultraviolet Ink, and Screen Protector for Decorating a Powered-off Display
FR3077284B1 (fr) * 2018-01-30 2020-03-06 Commissariat A L'energie Atomique Et Aux Energies Alternatives Procede d'encapsulation d'un dispositif microelectronique, par des substrats fins ou ultrafins, facilement manipulables
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CN111722426A (zh) * 2019-03-20 2020-09-29 群创光电股份有限公司 可挠式液晶显示设备
TWI718930B (zh) * 2020-04-13 2021-02-11 元太科技工業股份有限公司 電子紙封裝結構

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