WO2018094732A1 - 偏光片及显示器 - Google Patents

偏光片及显示器 Download PDF

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Publication number
WO2018094732A1
WO2018094732A1 PCT/CN2016/107479 CN2016107479W WO2018094732A1 WO 2018094732 A1 WO2018094732 A1 WO 2018094732A1 CN 2016107479 W CN2016107479 W CN 2016107479W WO 2018094732 A1 WO2018094732 A1 WO 2018094732A1
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WIPO (PCT)
Prior art keywords
layer
polarizer
oxygen barrier
water
protective layer
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Ceased
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PCT/CN2016/107479
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English (en)
French (fr)
Inventor
余晓军
陈一鸣
朱剑磊
陈鑫
张琨
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to PCT/CN2016/107479 priority Critical patent/WO2018094732A1/zh
Priority to CN201680039094.0A priority patent/CN107820574A/zh
Publication of WO2018094732A1 publication Critical patent/WO2018094732A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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

Definitions

  • the present invention relates to the field of touch panel manufacturing technologies, and in particular, to a polarizer and a display.
  • Thinning is the direction of the development of flexible displays.
  • Flexible displays usually contain a polarizer and a water-oxygen barrier layer. The two materials are separately fabricated for display production, wherein the polarizer also contains a phase difference film; and the water-oxygen barrier layer is usually formed on a flexible substrate through glue and OLED. fit. Excessive substrate and glue can cause the thickness of the flexible display to be too thick, which is not conducive to improving the performance of bending, twisting and winding of the flexible display, and limits the application of the flexible display.
  • the present application provides a polarizer and a display, which can reduce the thickness of the display by saving the substrate of the water and oxygen barrier layer and the glue attached to the OLED.
  • the present invention relates to a polarizer comprising a top protective layer, a polarizing layer, a bottom protective layer and a retardation film which are sequentially stacked, the polarizer further comprising a water oxygen barrier layer; the water oxygen barrier layer can be coated
  • the method is formed by laminating on the retardation film layer or the bottom protective layer facing one side of the retardation film layer.
  • the water oxygen barrier is laminated on a side of the retardation film layer facing the bottom protective layer.
  • the water oxygen barrier is laminated on a side of the retardation film layer facing away from the bottom protective layer.
  • the water oxygen barrier is laminated on one side of the bottom protective layer facing the retardation film layer.
  • the water oxygen barrier layer can be produced by coating.
  • phase difference film layer and the bottom protection layer are fixed by an adhesive layer.
  • a display device includes a display screen, a touch screen and a polarizer.
  • the polarizer includes a top protective layer, a polarizing layer, a bottom protective layer and a phase difference film layer which are sequentially stacked, and the polarizer further
  • the water-oxygen barrier layer is disposed on the phase difference film layer or the bottom protection layer faces the side of the phase difference film layer, and the touch screen and the polarizer are sequentially stacked on the display layer. On the screen.
  • the water oxygen barrier is laminated on a side of the retardation film layer facing the bottom protective layer.
  • the water oxygen barrier is laminated on a side of the retardation film layer facing away from the bottom protective layer.
  • the water oxygen barrier layer is laminated on one side of the bottom protective layer facing the retardation film layer.
  • the water oxygen barrier layer can be produced by coating.
  • the touch screen, the polarizer and the display screen are fixed by an adhesive layer.
  • the water-oxygen barrier layer described in the present application is formed on the polarizer, and saves a substrate and a layer of glue compared with the conventional process, which is beneficial to the flexible bending function, and can reduce the thickness and is beneficial to the thinning and thinning of the product.
  • FIG. 1 is a schematic cross-sectional view of a polarizer according to an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of a polarizer according to an embodiment of the present application.
  • FIG 3 is a schematic cross-sectional view of a polarizer of another embodiment of the present application.
  • FIG. 4 is a schematic cross-sectional view of a flexible display having the polarizer shown in FIG. 1.
  • the polarizer of the embodiment of the present application may be, but not limited to, a flexible telephone, a computer, a display, an e-reader, etc., which is not specifically limited in this embodiment of the present application.
  • the present invention provides a polarizer 20 comprising a top protective layer 25 , a polarizing layer 24 , a bottom protective layer 23 and a retardation film layer 22 which are sequentially stacked, and the polarizer 20 further includes a water and oxygen barrier layer. 21; the water oxygen barrier layer 21 is stacked on the retardation film layer 22 or the bottom protective layer 23 faces the side of the retardation film layer 22.
  • the polarizing layer 24 is protected by a bottom protective layer 23 and a top protective layer 25 having high light transmittance, good water resistance and certain mechanical strength.
  • the water-oxygen barrier layer 21 is stacked on one side of the retardation film layer 22 toward the bottom protective layer 23.
  • the phase difference film layer 22 serves as a carrier substrate of the water and oxygen barrier layer 21, and
  • the polarizers are integrated to save a layer of the substrate of the water-oxygen barrier layer 21, reducing the thickness of the display.
  • phase difference film layer 22 and the bottom protective layer 23 are fixed by an adhesive layer 26.
  • the material of the bottom protective layer 23 and the top protective layer 25 is cellulose triacetate.
  • the polarizing layer 24 is polyvinyl alcohol.
  • the water-oxygen barrier layer 21 is stacked on a side of the retardation film layer 22 facing away from the bottom protective layer 23 .
  • the water oxygen barrier layer 21 is laminated on one side of the bottom protective layer 23 toward the retardation film layer 22 .
  • the bottom protective layer 23 serves as a carrier substrate of the water-oxygen barrier layer 21, and is integrated with the polarizer, thereby saving a substrate of the water-oxygen barrier layer 21 and reducing the thickness of the display.
  • the display 100 provided by the present invention includes a display screen 40, a touch screen 50, and the above polarizer.
  • the polarizer in the figure is the polarizer 20 of the first embodiment, and the touch screen 50 and the polarizer 20 are sequentially stacked on the display screen 40.
  • the polarizer 20 is attached to the display screen 40 by an adhesive layer.
  • the application adopts a water-oxygen barrier layer formed on the polarizer, and saves a substrate and a layer of glue compared with the conventional process, which is beneficial to reducing the cost, and can reduce the thickness, which is beneficial to the thinning and thinning of the product.
  • the module process can be reduced by at least 2 times, which is beneficial to improve production yield and production efficiency.
  • at least two bonding interfaces can be reduced, which is beneficial to bending, twisting, curling, etc. of the flexible display, and improving the life of the flexible display.
  • the water-oxygen barrier layer is disposed in the layer structure of the polarizer, and the water-oxygen barrier layer and the polarizer having the independent carrier substrate are separately fabricated in the prior art, and then the glue is pasted.
  • the applied water-oxygen barrier layer saves a layer of substrate, which in turn reduces the overall thickness of the display.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Human Computer Interaction (AREA)
  • Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Polarising Elements (AREA)

Abstract

一种偏光片（20）及显示器（100），包括依次层叠设置的顶保护层（25）、偏振层（24）、底保护层（23）、位相差膜层（22），偏光片（20）还包括水氧阻隔层（21）；水氧阻隔层（21）叠于位相差膜层（22）上或者底保护层（23）朝向位相差膜层（22）的一侧。节省了水氧阻隔层（21）的基材，减小了显示器（100）厚度。

Description

偏光片及显示器 技术领域
本发明涉及触控面板制造技术领域，尤其涉及一种偏光片及显示器。
背景技术
轻薄化是柔性显示器发展的方向。柔性显示器通常包含偏光片与水氧阻隔层，两种材料单独制作后用于显示器的生产，其中偏光片还包含位相差膜；而水氧阻隔层通常做在柔性基材上，通过胶水与OLED贴合。过多的基材与胶水会导致柔性显示器厚度太厚，不利于提升柔性显示器弯折、扭曲、绕曲等性能，限制柔性显示器的应用。
发明内容
基于上述问题，本申请提供一种偏光片及显示器，通过节省水氧阻隔层的基材及与OLED贴合的胶水，进而减小显示器厚度。
本申请一种偏光片，包括依次层叠设置的顶保护层、偏振层、底保护层、位相差膜，所述偏光片还包括水氧阻隔层；所述位水氧阻隔层可以通过涂布的方式制作，叠于所述位相差膜层上或者所述底保护层朝向所述位相差膜层的一侧。
其中，所述水氧阻隔层叠于所述位相差膜层上朝向所述底保护层的一侧。
其中，所述水氧阻隔层叠于所述位相差膜层上背向底保护层的一侧。
其中，所述水氧阻隔层叠于所述底保护层上朝向所述位相差膜层的一侧。
其中，所述水氧阻隔层可以通过涂布的方式制作。
其中，所述位相差膜层与所述底保护层之间通过粘胶层固定。
本申请所述的一种显示器，包括显示屏、触控屏及偏光片，所述偏光片包括依次层叠设置的顶保护层、偏振层、底保护层、位相差膜层，所述偏光片还包括水氧阻隔层；所述位水氧阻隔层叠于所述位相差膜层上或者所述底保护层朝向所述位相差膜层的一侧，所述触控屏、偏光片依次层叠于显示屏上。
其中，所述水氧阻隔层叠于所述位相差膜层上朝向所述底保护层的一侧。
其中，所述水氧阻隔层叠于所述位相差膜层上背向底保护层的一侧。
其中，所述水氧阻隔层层叠于所述底保护层上朝向所述位相差膜层的一侧。
其中，所述水氧阻隔层可以通过涂布的方式制作。
其中，所述触控屏、偏光片及显示屏之间均通过粘着层固定。
本申请所述的水氧阻隔层形成于偏光片上，制程上与传统相比节省一片基材以及一层胶水，有利于柔性弯折功能，可以将厚度减薄，有利于产品的轻薄化。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例的偏光片的截面示意图。
图2是本申请一实施例的偏光片的截面示意图。
图3是本申请另一实施例的偏光片的截面示意图。
图4是具有图1所示的偏光片的柔性显示器截面示意图。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述。
本申请实施例涉及的偏光片可以为但不限于柔性电话、电脑、显示器或电子阅读器等，本申请实施例对此不作具体限定。
请参阅图1，本发明提供一种偏光片20，包括依次层叠设置的顶保护层25、偏振层24、底保护层23及位相差膜层22，所述偏光片20还包括水氧阻隔层21；所述水氧阻隔层21叠于所述位相差膜层22上或者所述底保护层23朝向所述位相差膜层22的一侧。所述偏振层24通过具有高光透过率、耐水性好又有一定机械强度的底保护层23及顶保护层25进行防护。
本实施例中，所述水氧阻隔层21叠于所述位相差膜层22上朝向所述底保护层23的一侧。所述位相差膜层22作为所述水氧阻隔层21的承载基板，与 偏光片合为一体，节省了一层水氧阻隔层21的基板，减少显示器的厚度。
本实施例中，所述位相差膜层22与所述底保护层23之间通过粘胶层26固定。所述底保护层23与顶保护层25的材料为三醋酸纤维素。所述偏振层24为聚乙烯醇。
请参阅图2，本申请另一实施例中，所述位水氧阻隔层21叠于所述位相差膜层22上背向底保护层23的一侧。
请参阅图3，本申请又一实施例中，所述水氧阻隔层21层叠于所述底保护层23上朝向所述位相差膜层22的一侧。本实施方式中，所述底保护层23作为所述水氧阻隔层21的承载基板，与偏光片合为一体，节省了一层水氧阻隔层21的基板，减少显示器的厚度。
参阅图4，本发明提供的显示器100，包括显示屏40、触控屏50及上述偏光片。本图中的偏光片为上述第一实施例的偏光片20，所述触控屏50、偏光片20依次层叠于显示屏40上。所述偏光片20通过粘着层贴于所述显示屏40上。
本申请采用偏光片上形成水氧阻隔层，制程上与传统相比节省一片基材以及一层胶水，有利于降低成本，可以将厚度减薄，有利于产品的轻薄化。同时在模组制程可至少减少2次贴合，有利于提高生产良率及生产效率。另外可至少减少2个贴合界面，有利于柔性显示器弯折、扭曲、卷曲等，提高柔性显示器寿命。
本申请中将水氧阻隔层设置于偏光片的层结构内，相较于现有技术的具有独立的承载基板的水氧阻隔层与偏光片均为单独制作，再通过胶水粘贴来说，本申请的水氧阻隔层节省了一层基板，进而减小了显示器整体厚度。
以上所述是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (10)

  1. 一种偏光片，其特征在于，包括依次层叠设置的顶保护层、偏振层、底保护层、位相差膜层，所述偏光片还包括水氧阻隔层；所述水氧阻隔层叠于所述位相差膜层上或者所述底保护层朝向所述位相差膜层的一侧。
  2. 如权利要求1所述的偏光片，其特征在于，所述水氧阻隔层叠于所述位相差膜层上朝向所述底保护层的一侧。
  3. 如权利要求1所述的偏光片，其特征在于，所述水氧阻隔层叠于所述位相差膜层上背向底保护层的一侧。
  4. 如权利要求1所述的偏光片，其特征在于，所述位水氧阻隔层叠于所述底保护层上朝向所述位相差膜层的一侧。
  5. 如权利要求1所述的偏光片，其特征在于，所述位相差膜层与所述底保护层之间通过粘胶层固定。
  6. 一种显示器，包括显示屏、触控屏及偏光片，其特征在于，所述偏光片包括依次层叠设置的顶保护层、偏振层、底保护层、位相差膜层，所述偏光片还包括水氧阻隔层；所述位水氧阻隔层叠于所述位相差膜层上或者所述底保护层朝向所述阻隔基层的一侧，所述触控屏、偏光片依次层叠于显示屏上。
  7. 如权利要求6所述的显示器，其特征在于，所述位水氧阻隔层叠于所述位相差膜层上朝向所述底保护层的一侧。
  8. 如权利要求6所述的显示器，其特征在于，所述位水氧阻隔层叠于所述位相差膜层上背向底保护层的一侧。
  9. 如权利要求6所述的显示器，其特征在于，所述水氧阻隔层层叠于所述底保护层上朝向所述位相差膜层的一侧。
  10. 如权利要求9所述的显示器，其特征在于，所述触控屏、偏光片及显示屏之间均通过粘着层固定。
PCT/CN2016/107479 2016-11-28 2016-11-28 偏光片及显示器 Ceased WO2018094732A1 (zh)

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