WO2019114094A1 - 显示模组及其偏光片 - Google Patents

显示模组及其偏光片 Download PDF

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Publication number
WO2019114094A1
WO2019114094A1 PCT/CN2018/073508 CN2018073508W WO2019114094A1 WO 2019114094 A1 WO2019114094 A1 WO 2019114094A1 CN 2018073508 W CN2018073508 W CN 2018073508W WO 2019114094 A1 WO2019114094 A1 WO 2019114094A1
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Prior art keywords
layer
polarizer
polarizing
bonding
bonding layer
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PCT/CN2018/073508
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English (en)
French (fr)
Inventor
海博
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惠州市华星光电技术有限公司
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Priority to US15/752,490 priority Critical patent/US20200132901A1/en
Application filed by 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Publication of WO2019114094A1 publication Critical patent/WO2019114094A1/zh

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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
    • G02B5/3041—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 comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—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 comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • 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
    • 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
    • G02F1/133528—Polarisers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/03—Viewing layer characterised by chemical composition
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a display module and a polarizer thereof.
  • LCD TVs have become popular, and large-size LCD TVs have been favored by users due to their large display area and visual effects.
  • LCD TVs of 55 inches and above have become the mainstream choice for high-end models in the market.
  • the larger the size of the liquid crystal panel the more likely it is to warp.
  • the thickness of the glass substrate used in the large-size liquid crystal panel has been converted from 0.7 mm to 0.5 mm, and the thinner the glass substrate is, The greater the influence of external force, the more likely it is to warp.
  • the large-sized thin liquid crystal panel is prone to warpage, and warpage may cause light leakage to occur, thereby affecting the taste.
  • the panel warpage generated by high humidity can be improved by using a high water resistance polarizer structure, but for the warpage caused by the thermal shock, the use of the high water resistance polarizer does not necessarily improve the effect, so it is required to be generated for high temperature. Panel warpage is improved.
  • the present invention provides a display module and a polarizer thereof, which can reduce the stress of the polarizer in a high temperature environment, reduce the bending degree of the display module, and avoid the phenomenon of light leakage around the display module. Improves the display quality of the display module.
  • the specific technical solution proposed by the present invention is to provide a polarizer, the polarizer includes a first adhesive layer, a polarizing layer, a second adhesive layer and a protective layer, and the polarizing layer is disposed on the first bonding Between the layer and the second bonding layer, the second bonding layer is disposed between the polarizing layer and the protective layer, and the polarizing layer is made of high temperature resistant wet polyvinyl alcohol (Poly Vinyl) Alcohol, PVA), so that the polarizer has a temperature resistance of not less than 60 ° C and a humidity resistance of not less than 80%.
  • PVA Poly Vinyl
  • the polarizer has a humidity resistance of not less than 90%.
  • the polarizing layer has a thickness of 10 to 20 ⁇ m; and/or the protective layer has a thickness of 10 to 20 ⁇ m.
  • the first bonding layer is made of a pressure sensitive adhesive
  • the pressure sensitive adhesive is a soft pressure sensitive adhesive
  • the material of the protective layer is selected to have a thermal expansion coefficient lower than that of the cellulose triacetate.
  • the material of the second bonding layer is UV glue.
  • the present invention also provides another polarizer comprising a first adhesive layer, a polarizing layer, a second adhesive layer, a third adhesive layer, a compensation film layer and a protective layer, wherein the polarizing layer is disposed on Between the first bonding layer and the second bonding layer, the second bonding layer is disposed between the polarizing layer and the protective layer, the third bonding layer and the compensation a film layer is disposed between the first bonding layer and the polarizing layer, the compensation film layer is located between the first bonding layer and the third bonding layer, and the material of the polarizing layer is
  • the high temperature resistant polyvinyl alcohol is such that the polarizer has a temperature resistance of not less than 60 °C.
  • the polarizer has a temperature resistance of not less than 80 °C.
  • the material of the second adhesive layer and the third adhesive layer is UV glue.
  • the polarizing layer has a thickness of 10 to 20 ⁇ m
  • the compensation film layer has a thickness of 20 to 40 ⁇ m
  • the protective layer has a thickness of 10 to 20 ⁇ m.
  • the first bonding layer is made of a pressure sensitive adhesive
  • the pressure sensitive adhesive is a soft pressure sensitive adhesive
  • the material of the protective layer is selected to have a thermal expansion coefficient lower than that of the cellulose triacetate. s material.
  • the present invention also provides a display module, the display module includes a first polarizer, a second polarizer, and a display layer disposed between the first polarizer and the second polarizer, Each of the first polarizer and the second polarizer is a polarizer as described above.
  • the polarizing layer of the polarizer of the present invention is made of a high temperature-resistant wet PVA, so that the polarizing plate has a temperature resistance of not less than 60 ° C and a humidity resistance of not less than 80%, thereby preventing the polarizing layer from being heated and absorbed by water to cause molecular chain shrinkage. Causes the polarizer to generate stress.
  • the polarizing layer of another polarizer provided by the present invention is made of a high temperature-resistant wet PVA, so that the temperature resistance of the polarizer is not less than 60 ° C, thereby preventing the polarizing layer from absorbing water and causing molecular chain shrinkage to cause stress on the polarizer. Both structures can reduce the stress of the polarizer and reduce the bending degree of the display module, thereby avoiding the phenomenon of light leakage around the display module and improving the display quality of the display module.
  • FIG. 1 is a schematic structural view of a polarizer in Embodiment 1;
  • Embodiment 2 is a schematic structural view of another polarizer in Embodiment 1;
  • Embodiment 3 is a schematic structural view of another polarizer in Embodiment 1;
  • Embodiment 4 is a schematic structural view of another polarizer in Embodiment 1;
  • Embodiment 5 is a schematic structural view of another polarizer in Embodiment 1;
  • FIG. 6 is a schematic structural view of a display module in Embodiment 1;
  • FIG. 7 is a schematic structural view of a polarizer in Embodiment 2.
  • Embodiment 8 is a schematic structural view of another polarizer in Embodiment 2.
  • Embodiment 9 is a schematic structural view of another polarizer in Embodiment 2.
  • FIG. 10 is a schematic structural view of another polarizer in Embodiment 2.
  • FIG. 11 is a schematic structural view of a display module in Embodiment 2.
  • the polarizer provided in this embodiment includes a first bonding layer 11 , a polarizing layer 12 , a second bonding layer 13 , and a protective layer 14 .
  • the polarizing layer 12 is disposed between the first bonding layer 11 and the second bonding layer 13.
  • the second bonding layer 13 is disposed between the polarizing layer 12 and the protective layer 14.
  • the polarizing layer 12 is made of a high temperature resistant wet PVA. So that the polarizer has a temperature resistance of not less than 60 ° C and a humidity resistance of not less than 80%.
  • the material of the polarizing layer 12 of the present embodiment is a high temperature-resistant wet PVA, so that the temperature resistance of the polarizer is not less than 60 ° C and the humidity resistance is not less than 80%, so that the polarizing layer 12 can be prevented from being heated by water absorption and the molecular chain shrinks, resulting in a polarizer.
  • the stress is generated to reduce the bending degree of the display module, thereby avoiding the phenomenon of light leakage around the display module and improving the display quality of the display module.
  • the material of the polarizing layer 12 is a high temperature resistant wet PVA, so that the polarizing plate has a temperature resistance of not less than 60 ° C and a humidity resistance of not less than 90%.
  • the temperature resistance of the polarizer means that the polarizer does not cause chemical change or physical damage due to thermal expansion at this temperature.
  • the humidity resistance of the polarizer means that the polarizer does not undergo chemistry under the humidity. Change or physical damage. Since the temperature resistance of the polarizer is relatively high, the stress generated by the thermal expansion in a high temperature environment is relatively small, and the degree of bending of the display module can be reduced, thereby avoiding the phenomenon of light leakage around the display module.
  • the humidity resistance is obtained by taking a polarizer sample having a size of 40 ⁇ 40 mm and attaching it to the clean glass with a roller. The sample was placed in an environment of 60 ° C * 5 kgf / cm 2 for 15 minutes, and then the polarizer sample was placed in a furnace at a temperature of 60 ° C and a humidity of 90% for 500 hours. Finally, the polarizer sample was taken out and the polarizer sample was judged. The change in the transmittance is not more than 5%. If it is not more than 5%, it means that the polarizer has a temperature resistance of 60 ° C and a humidity resistance of 90%.
  • the first bonding layer 11 is used for bonding the polarizer to the glass substrate
  • the polarizing layer 12 functions to polarize and detect the polarizing layer
  • the second bonding layer 13 is used to bond the polarizing layer 12 and the protective layer 14.
  • the protective layer 14 has the function of isolating water vapor and is used to support the entire polarizer.
  • the material of the first bonding layer 11 is Pressure Sensitive Adhesive (PSA)
  • the material of the protective layer 14 is Triacetyl Cellulose (TAC)
  • the material of the second bonding layer 13 For water glue or UV glue.
  • the material of the second adhesive layer 13 in this embodiment is UV glue. Since the UV adhesive is a rubber material which does not contain a hydrophilic organic solvent, the stress caused by the water absorption of the polarizing layer 12 and the shrinkage of the molecular chain may be caused to cause the entire polarizer to be generated, thereby reducing the degree of bending of the display module.
  • the stress of the entire polarizer can also be reduced by reducing the thickness of the polarizing layer 12, wherein the polarizing layer 12 has a thickness of 10 to 20 ⁇ m.
  • the polarizing layer 12 can effectively reduce the thickness of the entire polarizer, thereby weakening the stress generated by the thermal expansion of the polarizing layer 12 and reducing the degree of bending of the display module.
  • the present embodiment can also reduce the stress of the entire polarizer by reducing the thickness of the protective layer 14, wherein the protective layer 14 has a thickness of 20 to 40 micrometers.
  • the protective layer 14 can effectively reduce the thickness of the entire polarizer, thereby reducing the stress of the entire polarizer and reducing the degree of bending of the display module.
  • the present embodiment can also reduce the stress of the entire polarizer by changing the viscosity of the first bonding layer 11.
  • the first bonding layer 11 is a soft PSA, that is, the PSA is a soft PSA, where the soft PSA refers to a PSA having a glass transition temperature of -20 ° C to -70 ° C, and the first bonding layer 11 is selected as a soft PSA.
  • the stress of the entire polarizer can be reduced, and the degree of bending of the display module can be reduced.
  • the present embodiment can also reduce the stress of the entire polarizer by selecting the material of the protective layer 14 as a film having a low coefficient of thermal expansion.
  • the low thermal expansion coefficient film refers to a material having a thermal expansion coefficient lower than that of TAC. Since the material of the protective layer 14 is selected as a material having a relatively low coefficient of thermal expansion, the stress generated by the protective layer 14 during the heating process is relatively small, so that the stress of the entire polarizer can be reduced.
  • the second bonding layer 13 is made of UV glue
  • the polarizing layer 12 has a temperature resistance greater than 60 ° C and humidity resistance.
  • the material of the second bonding layer 13 is UV glue
  • the temperature of the polarizing layer 12 is greater than 60 ° C
  • the humidity resistance is greater than 90%
  • the thickness of the polarizing layer 12 is 10 to 20 microns
  • the thickness of the protective layer 14 20 to 40 microns
  • the second bonding layer 13 is made of UV glue
  • the polarizing layer 12 has a temperature resistance greater than 60 ° C
  • the humidity resistance is greater than 90%
  • the polarizing layer 12 has a thickness of 10 to 20 microns
  • the protective layer 14 The thickness of the first bonding layer 11 is a soft PSA; or the material of the second bonding layer 13 is UV glue, the temperature of the polarizing layer 12 is greater than 60 ° C, the humidity resistance is greater than 90%, and the polarizing layer
  • the thickness of 12 is 10-20 micrometers
  • the thickness of the protective layer 14 is 20-40 micrometers
  • the first bonding layer 11 is a soft PSA
  • the material of the protective layer 14 is selected as a
  • the thickness of the polarizer in the embodiment is thin, and the stress of the polarizer can be effectively reduced, and the degree of bending of the display module is reduced, thereby avoiding the phenomenon of light leakage around the display module and improving the display quality of the display module.
  • the embodiment further provides a display module including a first polarizer, a second polarizer, and a display layer, the display layer being located between the first polarizer and the second polarizer.
  • the optical axes of the first polarizer and the second polarizer are perpendicular to each other, and the first polarizer and the second polarizer are the polarizers described above, wherein the first polarizer and the second polarizer may have the same structure or different .
  • the first polarizer includes a first adhesive layer 11, a polarizing layer 12, a second adhesive layer 13, and a protective layer 14 disposed away from the display layer in order from bottom to top
  • the second polarizer includes the display layer in order from bottom to top.
  • the protective layer 24, the second bonding layer 23, the polarizing layer 22 and the first bonding layer 21, in this case, the first polarizer and the second polarizer have the same structure, and the first polarizer and the second polarizer may be Any of the above polarizers.
  • the heat generated in the backlight module is transmitted to the second polarizer because the second polarizer is in contact with the backlight module.
  • the protective layer 24 of the second polarizer in the embodiment is selected by a thin TAC or a material thereof. A material with a relatively low coefficient of thermal expansion.
  • the display layer in this embodiment includes a CF substrate 31, a liquid crystal layer 32, and a TFT substrate 33.
  • the liquid crystal layer 32 is located between the CF substrate 31 and the TFT substrate 33, and the CF substrate 31 is located between the first polarizer and the liquid crystal layer 32. Since the first polarizer and the second polarizer sandwich the display layer therebetween, by reducing the stress of the first polarizer and the second polarizer, the degree of bending of the display module can be reduced, thereby avoiding the display mode. The phenomenon of light leakage around the group.
  • the polarizer provided in this embodiment includes a first bonding layer 11 , a polarizing layer 12 , a second bonding layer 13 , a protective layer 14 , a compensation film layer 15 , and a third bonding layer 16 .
  • the polarizing layer 12 is disposed between the first bonding layer 11 and the second bonding layer 13, and the second bonding layer 13 is disposed between the polarizing layer 12 and the protective layer 14, and the compensation film layer 15 and the third bonding layer 16 are disposed.
  • the compensation film layer 15 is located between the first bonding layer 11 and the third bonding layer 16.
  • the polarizing layer 12 in this embodiment is a high temperature resistant PVA, so that the temperature resistance of the entire polarizer is not less than 80 ° C, thereby reducing the stress of the entire polarizer.
  • the polarizing layer 12 in this embodiment is a high temperature resistant PVA, so that the temperature resistance of the entire polarizer is not less than 80 ° C, thereby reducing the stress of the entire polarizer.
  • the temperature resistance of the polarizer means that the polarizer does not cause chemical change or physical damage due to thermal expansion at this temperature. Since the temperature resistance of the polarizer is relatively high, the stress generated by the thermal expansion in a high temperature environment is relatively small, and the degree of bending of the display module can be reduced, thereby avoiding the phenomenon of light leakage around the display module.
  • the temperature resistance of the polarizer is 80 °C as an example, in the actual detection process, the temperature resistance is obtained by taking a polarizer sample with a size of 40 ⁇ 40 mm, attaching it to a clean glass with a roller, and placing it at 80 ° C * 5 kgf / 15 minutes in the cm 2 environment, then the polarizer sample was placed in a furnace at a temperature of 80 ° C for 500 hours, and finally the polarizer sample was taken out and it was judged whether the change in the transmittance of the polarizer sample was not more than 5%, if When it is not more than 5%, it means that the temperature resistance of the polarizer is 80 °C.
  • the material of the second adhesive layer 13 and the third adhesive layer 16 in this embodiment is UV glue.
  • the first bonding layer 11 is used for bonding the polarizer to the glass substrate
  • the polarizing layer 12 functions to polarize and detect the polarizing layer
  • the second bonding layer 13 is used to bond the polarizing layer 12 and the protective layer 14.
  • the third bonding layer 16 is used to bond the compensation film layer 15 with the polarizing layer 12.
  • the protective layer 14 has the function of isolating water vapor and is used to support the entire polarizer.
  • the compensation film layer 15 is used to compensate for large viewing angle light leakage and Color shift, at the same time, it acts to isolate water vapor and support polarizers.
  • the material of the first bonding layer 11 is Pressure Sensitive Adhesive (PSA)
  • the material of the polarizing layer 12 is PVA
  • the material of the protective layer 14 is Triacetyl Cellulose (TAC).
  • the material of the compensation film layer 15 is TAC or a cyclic olefin polymer (COP).
  • the material of the second adhesive layer 13 and the third adhesive layer 16 in the embodiment is UV glue. Since the UV glue is a glue material containing no hydrophilic organic solvent, the molecular chain shrinkage caused by the water absorption of the polarizing layer 12 can be weakened. This causes stress on the entire polarizer, which reduces the degree of bending of the display module.
  • the stress of the entire polarizer can also be reduced by reducing the thickness of the polarizing layer 12, wherein the polarizing layer 12 has a thickness of 10 to 20 ⁇ m.
  • the polarizing layer 12 can effectively reduce the thickness of the entire polarizer, thereby weakening the stress generated by the thermal expansion of the polarizing layer 12 and reducing the degree of bending of the display module.
  • the stress of the entire polarizer can be reduced by reducing the thickness of the compensation film layer 15, wherein the thickness of the compensation film layer 15 is 20 to 40 ⁇ m.
  • the compensation film layer 15 can effectively reduce the thickness of the entire polarizer, thereby reducing the stress of the entire polarizer and reducing the degree of bending of the display module.
  • the present embodiment can also reduce the stress of the entire polarizer by reducing the thickness of the protective layer 14, wherein the protective layer 14 has a thickness of 20 to 40 ⁇ m.
  • the protective layer 14 can effectively reduce the thickness of the entire polarizer, thereby reducing the stress of the entire polarizer and reducing the degree of bending of the display module.
  • the stress of the entire polarizer can also be lowered by changing the viscosity of the first bonding layer 11.
  • the first bonding layer 11 is a soft PSA, that is, the PSA is a soft PSA, where the soft PSA refers to a PSA having a glass transition temperature of -20 ° C to -70 ° C, and the first bonding layer 11 is selected as a soft PSA.
  • the stress of the entire polarizer can be reduced, and the degree of bending of the display module can be reduced.
  • the stress of the entire polarizer can be reduced by selecting the material of the protective layer 14 as a material having a relatively low thermal expansion coefficient.
  • a material having a relatively low coefficient of thermal expansion refers to a material having a coefficient of thermal expansion lower than that of TAC. Since the material of the protective layer 14 is selected as a material having a relatively low coefficient of thermal expansion, the stress generated by the protective layer 14 during the heating process is relatively small, so that the stress of the entire polarizer can be reduced.
  • the polarizer in this embodiment further includes a compensation film layer 15.
  • the compensation film layer 15 can compensate for large viewing angle leakage and color shift of the display module, thereby further improving the display quality of the display module.
  • the embodiment further provides a display module including a first polarizer, a second polarizer, and a display layer, and the display layer is located between the first polarizer and the second polarizer.
  • the optical axes of the first polarizer and the second polarizer are perpendicular to each other, and the first polarizer and the second polarizer are the polarizers described above, wherein the first polarizer and the second polarizer may have the same structure or different .
  • the first polarizer includes a first adhesive layer 11, a compensation film layer 15, a third adhesive layer 16, a polarizing layer 12, a second adhesive layer 13, and a protective layer 14 which are disposed away from the display layer in order from bottom to top.
  • the second polarizer includes a protective layer 24, a second adhesive layer 23, a polarizing layer 22, a third adhesive layer 26, a compensation film layer 25, and a first adhesive layer 21 which are sequentially adjacent to the display layer from bottom to top.
  • the first polarizer and the second polarizer have the same structure, and the first polarizer and the second polarizer may be any one of the polarizers.
  • the heat generated in the backlight module is transmitted to the second polarizer because the second polarizer is in contact with the backlight module.
  • the protective layer 24 of the second polarizer in the embodiment is selected by a thin TAC or a material thereof. A material with a relatively low coefficient of thermal expansion.
  • the display layer in this embodiment includes a CF substrate 31, a liquid crystal layer 32, and a TFT substrate 33.
  • the liquid crystal layer 32 is located between the CF substrate 31 and the TFT substrate 33, and the CF substrate 31 is located between the first polarizer and the liquid crystal layer 32. Since the first polarizer and the second polarizer sandwich the display layer therebetween, by reducing the stress of the first polarizer and the second polarizer, the degree of bending of the display module can be reduced, thereby avoiding the display mode. The phenomenon of light leakage around the group.

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  • Optics & Photonics (AREA)
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Abstract

一种显示模组及其偏光片，偏光片包括第一粘接层（11）、偏振层（12）、第二粘接层（13）及保护层（14），偏振层（12）设于第一粘接层（11）与第二粘接层（13）之间，第二粘接层（13）设于偏振层（12）与保护层（14）之间，偏振层（12）的材质为高耐温湿聚乙烯醇，以使得偏光片的耐温度不小于60℃、耐湿度不小于80％。另一种偏光片，还包括第三粘接层（16）和补偿膜层（15），第三粘接层（16）和补偿膜层（15）设于第一粘接层（11）与偏振层（12）之间，补偿膜层（15）位于第一粘接层（11）与第三粘接层（16）之间，偏振层（12）的材质为高耐温聚乙烯醇，以使得偏光片的耐温度不小于60℃。两种偏光片结构都能够降低偏光片的应力、减弱显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象，提升了显示模组的显示品质。

Description

显示模组及其偏光片 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种显示模组及其偏光片。
背景技术
随着液晶显示技术的发展，液晶电视已经普及，且大尺寸液晶电视因显示面积大、视觉效果震撼受到用户的喜欢，目前55英寸及以上的液晶电视已经成为市场高端机种的主流选择。但是，液晶面板尺寸越大，其越容易发生翘曲，而且，为了追求轻薄化以及降低成本，目前大尺寸液晶面板采用的玻璃基板厚度已经由0.7mm转换为0.5mm，玻璃基板越薄，受外力的影响就越大，更容易发生翘曲。因此，液晶面板在做高温高湿或冷热冲击测试时，大尺寸薄型液晶面板很容易出现翘曲，翘曲会导致漏光发生，从而影响品味。针对高湿所产生的面板翘曲，可以采用高耐水性偏光片结构来改善，但对于冷热冲击所产生的翘曲，采用高耐水性偏光片不一定改善效果好，所以需要针对高温产生的面板翘曲进行改善。
发明内容
为了解决现有技术的不足，本发明提供一种显示模组及其偏光片，能够降低偏光片在高温环境下的应力，减弱显示模组的弯曲程度，避免了显示模组的周围漏光的现象，提升了显示模组的显示品质。
本发明提出的具体技术方案为：提供一种偏光片，所述偏光片包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇(Poly Vinyl Alcohol，PVA)，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％。
进一步地，所述偏光片的耐湿度不小于90％。
进一步地，所述偏振层的厚度为10～20微米；和/或所述保护层的厚度为10～20微米。
进一步地，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶，和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料；和/或所述第二粘接层的材质为UV胶。
本发明还提供了另外一种偏光片，所述偏光片包括第一粘接层、偏振层、第二粘接层、第三粘接层、补偿膜层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述第三粘接层和所述补偿膜层设于所述第一粘接层与所述偏振层之间，所述补偿膜层位于所述第一粘接层与所述第三粘接层之间，所述偏振层的材质为高耐温聚乙烯醇，以使得所述偏光片的耐温度不小于60℃。
进一步地，所述偏光片的耐温度不小于80℃。
进一步地，所述第二粘接层、第三粘接层的材质为UV胶。
进一步地，所述偏振层的厚度为10～20微米，和/或所述补偿膜层的厚度为20～40微米，和/或所述保护层的厚度为10～20微米。
进一步地，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶，和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料。
本发明还提供了一种显示模组，所述显示模组包括第一偏光片、第二偏光片及设于所述第一偏光片与所述第二偏光片之间的显示层，所述第一偏光片、第二偏光片均为如上任一所述的偏光片。
本发明提出的偏光片的偏振层的材质为高耐温湿PVA，使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％，从而可以避免偏振层受热吸水造成分子链收缩而导致偏光片产生应力。本发明提供的另一种偏光片的偏振层的材质为高耐温湿PVA，使得所述偏光片的耐温度不小于60℃，从而可以避免偏振层吸水造成分子链收缩而导致偏光片产生应力，两种结构都能够降低偏光片的应力、减弱显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象，提升了显示模组的显示品质。
附图说明
图1为实施例1中偏光片的结构示意图；
图2为实施例1中另一偏光片的结构示意图；
图3为实施例1中另一偏光片的结构示意图；
图4为实施例1中另一偏光片的结构示意图；
图5为实施例1中另一偏光片的结构示意图；
图6为实施例1中显示模组的结构示意图；
图7为实施例2中偏光片的结构示意图；
图8为实施例2中另一偏光片的结构示意图；
图9为实施例2中另一偏光片的结构示意图；
图10为实施例2中另一偏光片的结构示意图；
图11为实施例2中显示模组的结构示意图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。在附图中，相同的标号将始终被用于表示相同的元件。
实施例1
参照图1，本实施例提供的偏光片包括第一粘接层11、偏振层12、第二粘接层13及保护层14。偏振层12设于第一粘接层11与第二粘接层13之间，第二粘接层13设于偏振层12与保护层14之间，偏振层12的材质为高耐温湿PVA，以使得偏光片的耐温度不小于60℃、耐湿度不小于80％。
本实施例的偏振层12的材质为高耐温湿PVA，使得偏光片的耐温度不小于60℃、耐湿度不小于80％，从而可以避免偏振层12受热吸水造成分子链收缩而导致偏光片产生应力，减弱显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象，提升了显示模组的显示品质。
较佳地，偏振层12的材质为高耐温湿PVA，以使得偏光片的耐温度不小于60℃、耐湿度不小于90％。其中，偏光片的耐温度指的是偏光片在该温度下不会因受热膨胀而引起化学变化或物理伤害，同理，偏光片的耐湿度指的是偏光片在该湿度下不会发生化学变化或物理伤害。由于偏光片的耐温度比较高，其在高温环境下受热膨胀所产生的应力比较小，可以降低显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象。
以偏光片的耐温度为60℃、耐湿度为90％为例，在实际检测过程中，耐湿度是通过取规格为40x40mm的偏光片样品，用滚轮将其贴附在洁净的玻璃上。置于60℃*5kgf/cm 2环境中15分钟，然后将该偏光片样品置于温度为60℃、湿度为90％的炉子中500小时，最后将该偏光片样品取出并判定该偏光片样品的穿透率变化是不是不大于5％，如果不大于5％，则表示偏光片的耐温度为60℃、耐湿度为90％。
第一粘接层11用于将偏光片与玻璃基板进行粘接，偏振层12起到起偏和检偏的作用，第二粘接层13用于将偏振层12与保护层14进行粘接，保护层14具有隔绝水汽的作用，同时用于支撑整个偏光片。
本实施例中，第一粘接层11的材质为压敏胶(Pressure Sensitive Adhesive，PSA)，保护层14的材质为三醋酸纤维素(Triacetyl Cellulose，TAC)，第二粘接层13的材质为水胶或UV胶。
参照图2，为了降低整个偏光片的应力，优选的，本实施例中的第二粘接层13的材质为UV胶。由于UV胶为不含亲水性有机溶剂的胶材，可以减弱偏振层12吸水造成分子链收缩而导致整个偏光片产生的应力，从而降低显示模组的弯曲程度。
本实施例中还可以通过减小偏振层12的厚度来降低整个偏光片的应力，其中，偏振层12的厚度为10～20微米。偏振层12通过采用薄型的PVA，可以有效 的降低整个偏光片的厚度，从而减弱偏振层12受热膨胀所产生的应力，降低显示模组的弯曲程度。
同理，本实施例还可以通过减小保护层14的厚度来降低整个偏光片的应力，其中，保护层14的厚度为20～40微米。保护层14通过采用薄型的TAC，可以有效的降低整个偏光片的厚度，从而减弱整个偏光片的应力，降低显示模组的弯曲程度。
参照图3，本实施例还可以通过改变第一粘接层11的粘性来降低整个偏光片的应力。其中，第一粘接层11为软PSA，即PSA为软PSA，这里软PSA指的是玻璃化温度介于-20℃～-70℃的PSA，将第一粘接层11选为软PSA可以减小整个偏光片的应力，降低显示模组的弯曲程度。
参照图4，此外，本实施例还可以通过将保护层14的材质选为低热膨胀系数膜材来降低整个偏光片的应力。这里，低热膨胀系数膜材指的是热膨胀系数比TAC的热膨胀系数低的材料。由于保护层14的材质选为热膨胀系数比较低的材料，这样，保护层14在受热过程中产生的应力比较小，从而能够降低整个偏光片的应力。
当然，为了更好的降低整个偏光片的应力，可以将上面的几种方案进行任意组合，例如，第二粘接层13的材质为UV胶，偏振层12的耐温度大于60℃、耐湿度大于90％；或者，第二粘接层13的材质为UV胶，偏振层12的耐温度大于60℃、耐湿度大于90％，偏振层12的厚度为10～20微米，保护层14的厚度为20～40微米；或者，第二粘接层13的材质为UV胶，偏振层12的耐温度大于60℃、耐湿度大于90％，偏振层12的厚度为10～20微米，保护层14的厚度为20～40微米，第一粘接层11为软PSA；或者，第二粘接层13的材质为UV胶，偏振层12的耐温度大于60℃、耐湿度大于90％，偏振层12的厚度为10～20微米，保护层14的厚度为20～40微米，第一粘接层11为软PSA，保护层14的材质选为热膨胀系数比较低的材料，如图5所示。
本实施例中的偏光片的厚度较薄且能够有效降低偏光片的应力，减弱显示模组弯曲的程度，从而避免了显示模组的周围漏光的现象，提升了显示模组的显示品质。
参照图6，本实施例还提供了一种显示模组，其包括第一偏光片、第二偏光片和显示层，显示层位于第一偏光片和第二偏光片之间。第一偏光片和第二偏光片的光轴相互垂直，第一偏光片和第二偏光片均为上述的偏光片，其中，第一偏光片和第二偏光片的结构可以相同，也可以不同。
例如，第一偏光片包括从下至上依次远离显示层设置的第一粘接层11、偏振层12、第二粘接层13及保护层14，第二偏光片包括从下至上依次靠近显示层的保护层24、第二粘接层23、偏振层22及第一粘接层21，此时，第一偏光片和第二偏光片的结构相同，第一偏光片和第二偏光片可以为上述偏光片中的任意一种。由于第二偏光片与背光模组接触，背光模组中产生的热量会传递至第二偏光片上，优选地，本实施例中第二偏光片的保护层24采用薄型的TAC或者其材质选为热膨胀系数比较低的材料。
本实施例中的显示层包括CF基板31、液晶层32及TFT基板33，液晶层32位于CF基板31和TFT基板33之间，CF基板31位于第一偏光片与液晶层32之间。由于第一偏光片和第二偏光片将显示层夹设在其之间，因此，通过降低第一偏光片和第二偏光片的应力，可以减弱显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象。
实施例2
参照图7，本实施例提供的偏光片包括第一粘接层11、偏振层12、第二粘接层13、保护层14、补偿膜层15及第三粘接层16。偏振层12设于第一粘接层11与第二粘接层13之间，第二粘接层13设于偏振层12与保护层14之间，补偿膜层15和第三粘接层16设于第一粘接层11和偏振层12之间，补偿膜层15位于第一粘接层11和第三粘接层16之间。本实施例中的偏振层12为高耐温PVA，使得整个偏光片的耐温度不小于80℃，以此降低整个偏光片的应力。
较佳地，本实施例中的偏振层12为高耐温PVA，使得整个偏光片的耐温度不小于80℃，以此降低整个偏光片的应力。其中，偏光片的耐温度指的是偏光片在该温度下不会因受热膨胀而引起化学变化或物理伤害。由于偏光片的耐温度比较高，其在高温环境下受热膨胀所产生的应力比较小，可以降低显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象。
以偏光片的耐温度为80℃为例，在实际检测过程中，耐温度是通过取规格为40x40mm的偏光片样品，用滚轮将其贴附在洁净的玻璃上，置于80℃*5kgf/cm 2环境中15分钟，然后将该偏光片样品置于温度为80℃的炉子中500小时，最后将该偏光片样品取出并判断偏光片样品的穿透率变化是不是不大于5％，如果不大于5％，则表示偏光片的耐温度为80℃。
参照图8，本实施例中的第二粘接层13、第三粘接层16的材质为UV胶。第一粘接层11用于将偏光片与玻璃基板进行粘接，偏振层12起到起偏和检偏的作用，第二粘接层13用于将偏振层12与保护层14进行粘接，第三粘接层16用于将补偿膜层15与偏振层12进行粘接，保护层14具有隔绝水汽的作用，同时用于支撑整个偏光片，补偿膜层15用于补偿大视角漏光和色偏，同时起到隔绝水汽、支撑偏光片的作用。
本实施例中，第一粘接层11的材质为压敏胶(Pressure Sensitive Adhesive，PSA)，偏振层12的材质为PVA，保护层14的材质为三醋酸纤维素(Triacetyl Cellulose，TAC)，补偿膜层15的材质为TAC或环烯烃聚合物(COP)。
本实施例中的第二粘接层13、第三粘接层16的材质为UV胶，由于UV胶为不含亲水性有机溶剂的胶材，可以减弱偏振层12吸水造成分子链收缩而导致整个偏光片产生的应力，从而降低显示模组的弯曲程度。
本实施例中还可以通过减小偏振层12的厚度来降低整个偏光片的应力，其中，偏振层12的厚度为10～20微米。偏振层12通过采用薄型的PVA，可以有效的降低整个偏光片的厚度，从而减弱偏振层12受热膨胀所产生的应力，降低显示模组的弯曲程度。
同样的，本实施例中还可以通过减小补偿膜层15的厚度来降低整个偏光片的应力，其中，补偿膜层15的厚度为20～40微米。补偿膜层15通过采用薄型材质，可以有效的降低整个偏光片的厚度，从而减弱整个偏光片的应力，降低显示模组的弯曲程度。
同样的，本实施例还可以通过减小保护层14的厚度来降低整个偏光片的应力，其中，保护层14的厚度为20～40微米。保护层14通过采用薄型的TAC，可以有效的降低整个偏光片的厚度，从而减弱整个偏光片的应力，降低显示模组的弯曲程度。
参照图9，本实施例中还可以通过改变第一粘接层11的粘性来降低整个偏光片的应力。其中，第一粘接层11为软PSA，即PSA为软PSA，这里软PSA指的是玻璃化温度介于-20℃～-70℃的PSA，将第一粘接层11选为软PSA可以减小整个偏光片的应力，降低显示模组的弯曲程度。
参照图10，此外，本实施例还可以通过将保护层14的材质选为热膨胀系数比较低的材料来降低整个偏光片的应力。这里，热膨胀系数比较低的材料指的是热膨胀系数比TAC的热膨胀系数低的材料。由于保护层14的材质选为热膨胀系数比较低的材料，这样，保护层14在受热过程中产生的应力比较小，从而能够降低整个偏光片的应力。
当然，为了更好的降低整个偏光片的应力，可以将上面的几种方案进行任意组合，其组合方式与实施例1的类似，这里不再赘述。
本实施例中的偏光片还包括补偿膜层15，通过补偿膜层15可以补偿显示模组的大视角漏光和色偏，从而能够进一步的提升显示模组的显示品质。
参照图11，本实施例还提供了一种显示模组，其包括第一偏光片、第二偏光片和显示层，显示层位于第一偏光片和第二偏光片之间。第一偏光片和第二偏光片的光轴相互垂直，第一偏光片和第二偏光片均为上述的偏光片，其中，第一偏光片和第二偏光片的结构可以相同，也可以不同。
例如，第一偏光片包括从下至上依次远离显示层设置的第一粘接层11、补偿膜层15、第三粘接层16、偏振层12、第二粘接层13及保护层14，第二偏光片包括从下至上依次靠近显示层的保护层24、第二粘接层23、偏振层22、第三粘接层26、补偿膜层25及第一粘接层21，此时，第一偏光片和第二偏光片的结构相同，第一偏光片和第二偏光片可以为上述偏光片中的任意一种。由于第二偏光片与背光模组接触，背光模组中产生的热量会传递至第二偏光片上，优选地，本实施例中第二偏光片的保护层24采用薄型的TAC或者其材质选为热膨胀系数比较低的材料。
本实施例中的显示层包括CF基板31、液晶层32及TFT基板33，液晶层32位于CF基板31和TFT基板33之间，CF基板31位于第一偏光片与液晶层32之间。由于第一偏光片和第二偏光片将显示层夹设在其之间，因此，通过降低第一偏光 片和第二偏光片的应力，可以减弱显示模组的弯曲程度，从而避免了显示模组的周围漏光的现象。
以上所述仅是本申请的具体实施方式，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，这些改进和润饰也应视为本申请的保护范围。

Claims (19)

  1. 一种偏光片，其中，包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％。
  2. 根据权利要求1所述的偏光片，其中，所述偏光片的耐湿度不小于90％。
  3. 根据权利要求1所述的偏光片，其中，所述偏振层的厚度为10～20微米；和/或所述保护层的厚度为10～20微米。
  4. 根据权利要求2所述的偏光片，其中，所述偏振层的厚度为10～20微米；和/或所述保护层的厚度为10～20微米。
  5. 根据权利要求1所述的偏光片，其中，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶，和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料；和/或所述第二粘接层的材质为UV胶。
  6. 根据权利要求2所述的偏光片，其中，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶，和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料；和/或所述第二粘接层的材质为UV胶。
  7. 一种偏光片，其中，包括第一粘接层、偏振层、第二粘接层、第三粘接层、补偿膜层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述第三粘接层和所述补偿膜层设于所述第一粘接层与所述偏振层之间，所述补偿膜层位于所述第一粘接层与所述第三粘接层之间，所述偏振层的材质为高耐温聚乙烯醇，以使得所述偏光片的耐温度不小于60℃。
  8. 根据权利要求7所述的偏光片，其中，所述偏光片的耐温度不小于80℃。
  9. 根据权利要求7所述的偏光片，其中，所述第二粘接层、第三粘接层的材质为UV胶。
  10. 根据权利要求9所述的偏光片，其中，所述偏振层的厚度为10～20微米，和/或所述补偿膜层的厚度为20～40微米，和/或所述保护层的厚度为10～20微米。
  11. 根据权利要求9所述的偏光片，其中，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶；和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料。
  12. 一种显示模组，其中，包括第一偏光片、第二偏光片及设于所述第一偏光片与所述第二偏光片之间的显示层，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％，或所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层、第三粘接层、补偿膜层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述第三粘接层和所述补偿膜层设于所述第一粘接层与所述偏振层之间，所述补偿膜层位于所述第一粘接层与所述第三粘接层之间，所述偏振层的材质为高耐温聚乙烯醇，以使得所述偏光片的耐温度不小于60℃。
  13. 根据权利要求12所述的显示模组，其中，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％时，所述偏光片的耐湿度不小于90％。
  14. 根据权利要求12所述的显示模组，其中，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％时，所述偏振层的厚度为10～20微米；和/或所述保护层的厚度为10～20微米。
  15. 根据权利要求12所述的显示模组，其中，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层及保护层，所述偏振层设于所述第 一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述偏振层的材质为高耐温湿聚乙烯醇，以使得所述偏光片的耐温度不小于60℃、耐湿度不小于80％时，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶，和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料；和/或所述第二粘接层的材质为UV胶。
  16. 根据权利要求12所述的显示模组，其中，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层、第三粘接层、补偿膜层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述第三粘接层和所述补偿膜层设于所述第一粘接层与所述偏振层之间，所述补偿膜层位于所述第一粘接层与所述第三粘接层之间，所述偏振层的材质为高耐温聚乙烯醇，以使得所述偏光片的耐温度不小于60℃时，所述偏光片的耐温度不小于80℃。
  17. 根据权利要求12所述的显示模组，其中，所述第一偏光片、第二偏光片均包括第一粘接层、偏振层、第二粘接层、第三粘接层、补偿膜层及保护层，所述偏振层设于所述第一粘接层与所述第二粘接层之间，所述第二粘接层设于所述偏振层与所述保护层之间，所述第三粘接层和所述补偿膜层设于所述第一粘接层与所述偏振层之间，所述补偿膜层位于所述第一粘接层与所述第三粘接层之间，所述偏振层的材质为高耐温聚乙烯醇，以使得所述偏光片的耐温度不小于60℃时，所述第二粘接层、第三粘接层的材质为UV胶。
  18. 根据权利要求17所述的显示模组，其中，所述偏振层的厚度为10～20微米，和/或所述补偿膜层的厚度为20～40微米，和/或所述保护层的厚度为10～20微米。
  19. 根据权利要求17所述的显示模组，其中，所述第一粘接层的材质为压敏胶，所述压敏胶为软压敏胶；和/或所述保护层的材质选为热膨胀系数低于三醋酸纤维素的热膨胀系数的材料。
PCT/CN2018/073508 2017-12-15 2018-01-19 显示模组及其偏光片 WO2019114094A1 (zh)

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