WO2019042008A1 - 偏光板及液晶显示屏 - Google Patents

偏光板及液晶显示屏 Download PDF

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Publication number
WO2019042008A1
WO2019042008A1 PCT/CN2018/094302 CN2018094302W WO2019042008A1 WO 2019042008 A1 WO2019042008 A1 WO 2019042008A1 CN 2018094302 W CN2018094302 W CN 2018094302W WO 2019042008 A1 WO2019042008 A1 WO 2019042008A1
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WIPO (PCT)
Prior art keywords
polarizing layer
polarizing
layer
degrees
quarter
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Ceased
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PCT/CN2018/094302
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English (en)
French (fr)
Inventor
历志辉
林健源
刘树标
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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Publication of WO2019042008A1 publication Critical patent/WO2019042008A1/zh
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Classifications

    • 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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding 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
    • G02F1/133528—Polarisers

Definitions

  • the present invention relates to the field of liquid crystal display devices, and in particular, to a polarizing plate and a liquid crystal display.
  • the liquid crystal display device includes a liquid crystal panel and a backlight system.
  • the liquid crystal panel is composed of a liquid crystal layer sandwiched between two glass substrates, and a polarizing plate is attached to upper and lower outer surfaces of the glass substrate.
  • the liquid crystal display device utilizes a liquid crystal and a polarizing plate to realize an optical switching function, the liquid crystal is used for modulation of polarized light, and the polarizing plate is used to form polarized light and selectively absorb polarized light.
  • each polarizing plate is composed of a polarizing layer PVA (Polyvinyl). Alcohol, polyvinyl alcohol) is composed of a layer of TAC (Triacetyl Cellulose).
  • PVA Polyvinyl
  • TAC Triacetyl Cellulose
  • the transmittance of this polarizer is 40%. Left and right, although the metal reflected light can be reduced to a certain extent, but the metal reflected light can not be completely eliminated, thereby affecting the user's viewing comfort and affecting the overall aesthetics of the TV.
  • the main object of the present invention is to provide a polarizing plate and a liquid crystal display, which aims to solve the technical problem that the existing polarizing plate affects the user's viewing comfort and affects the overall aesthetics of the television.
  • the present invention provides a polarizing plate which is disposed on a liquid crystal display panel, wherein the polarizing plate is disposed outside the TFT glass substrate in the liquid crystal display panel, and the polarizing plate includes a first protective layer which is sequentially laminated. a first polarizing layer, a quarter wave plate, a second polarizing layer and a second protective layer;
  • the portion of the second polarizing layer located in the display area of the liquid crystal display has a polarizing function
  • the absorption axis axial angle of the first polarizing layer and the second polarizing layer is 0 ⁇ 5 degrees or 90 ⁇ 5 degrees.
  • the material of the first protective layer and the second protective layer is TAC cellulose triacetate.
  • the material of the first polarizing layer and the second polarizing layer is PVA polyvinyl alcohol.
  • the portion of the second polarizing layer located in the non-display area of the liquid crystal display has a polarizing function.
  • an angle between the first polarizing layer and the quarter wave plate is 45 degrees, so that the light transmitted through the quarter wave plate is circularly polarized. Light.
  • an angle between the second polarizing layer and the quarter-wave plate is 45 degrees, so that light transmitted through the second polarizing layer is linearly polarized light.
  • the first polarizing layer is perpendicular to the second polarizing layer such that the first polarizing layer and the second polarizing layer have an absorption axis axial angle of 90 degrees.
  • the first polarizing layer is parallel to the second polarizing layer such that the first polarizing layer and the second polarizing layer have an absorption axis axial angle of 0 degrees.
  • the present invention also provides a subject 2, a liquid crystal display comprising the polarizing plate of any of the above.
  • a quarter-wave plate is disposed between the first polarizing layer and the second polarizing layer, and a portion of the second polarizing layer located in the display region of the liquid crystal display has a polarizing function, and the first polarizing light
  • the absorption axis axial angle of the layer and the second polarizing layer is 0 ⁇ 5 degrees or 90 ⁇ 5 degrees, which enables natural light to sequentially transmit light of the first polarizing layer, the quarter wave plate and the second polarizing layer.
  • the second polarizing layer, the quarter-wave plate, and the first polarizing layer are sequentially transmitted, so that the light can be sufficiently absorbed by the first polarizing layer and the second polarizing layer, and
  • the axial angle of the absorption axis between the polarizing layer and the second polarizing layer enables the first polarizing layer and the second polarizing layer to absorb different linearly polarized light, thereby achieving the purpose of reducing the reflected light of the metal.
  • the circularly polarized light does not change after passing through the region, and the optical rotation state changes after being reflected by the metal trace, and the left-handed turns into a right-handed, after a quarter.
  • the wave plate becomes linearly polarized light, and the reflected light is perpendicular or parallel to the polarization direction of the linearly polarized light that is transmitted through the first polarizing layer upon incidence, and thus is completely absorbed by the first polarizing layer without transmission of reflected light.
  • FIG. 1 is a schematic structural view of an embodiment of a polarizing plate of the present invention
  • FIG. 2 is a schematic view showing the principle of an embodiment of a polarizing plate of the present invention
  • FIG. 3 is a schematic view showing the principle of another embodiment of a polarizing plate of the present invention.
  • FIG. 4 is a schematic view showing the principle of still another embodiment of the polarizing plate of the present invention.
  • Fig. 5 is a schematic view showing the principle of still another embodiment of the polarizing plate of the present invention.
  • First protective layer 20 First polarizing layer 30 Quarter wave plate 40 Second polarizing layer 50 Second protective layer
  • first”, “second”, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the invention proposes a polarizing plate.
  • FIG. 1 is a schematic structural view of an embodiment of a polarizing plate of the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a polarizing plate of the present invention
  • FIG. 3 is a schematic diagram of another embodiment of a polarizing plate of the present invention.
  • 4 is a schematic diagram of another embodiment of a polarizing plate of the present invention
  • FIG. 5 is a schematic diagram of another embodiment of a polarizing plate of the present invention.
  • the polarizing plate is applied to a liquid crystal display, and the polarizing plate is disposed in the liquid crystal display (TFT) (Thin Film Transistor, thin film transistor)
  • TFT liquid crystal display
  • the outer side of the glass substrate includes a first protective layer 10, a first polarizing layer 20, a quarter wave plate 30, a second polarizing layer 40, and a second protective layer 50 which are sequentially bonded.
  • the portion of the second polarizing layer 40 located in the display area of the liquid crystal display has a polarizing function.
  • the absorption axis axial angle of the first polarizing layer 20 and the second polarizing layer 40 is 0 ⁇ 5 degrees or 90 ⁇ 5 degrees.
  • the material of the first protective layer 10 is TAC
  • the material of the second protective layer 50 is TAC
  • the material of the first polarizing layer 20 is PVA
  • the material of the second polarizing layer 40 is PVA.
  • the first protective layer 10, the first polarizing layer 20, the quarter-wave plate 30, the second polarizing layer 40, and the second protective layer 50 may be adhered by an adhesive.
  • the polarizing plate is disposed on the outer side of the TFT glass substrate in the liquid crystal display, that is, on the side close to the user; in other embodiments, the polarizing plate may be disposed in the CF glass substrate away from the TFT glass substrate. One side.
  • the formed PVA is first dyed, and the formed PVA is specifically immersed in an iodine solution, wherein the partially formed PVA is completely completed. Soaking, the remaining formed PVA is only immersed in the second polarizing layer 40 formed in the portion of the display area of the liquid crystal display, and then the dyed processed PVA is stretched, for example, a length of 1 m has been formed. PVA is stretched to 7 ⁇ 8m, etc., and further to the polarizing layer, wherein the fully immersed formed PVA finally obtains the first polarizing layer 20, and only the portion of the second polarizing layer 40 formed by the immersion is located in the display area of the liquid crystal display. The formed PVA finally obtains the second polarizing layer 40.
  • the axial accuracy of the absorption axis of the first polarizer and the second polarizer differs by 0 to 10 degrees.
  • the absorption axis axial angles of the first polarizing layer 20 and the second polarizing layer 40 are 0 degrees or 90 degrees, that is, the absorption axes of the first polarizing layer 20 and the second polarizing layer 40 are axially parallel or Axial vertical.
  • an angle between the first polarizing layer 20 and the quarter wave plate 30 is 45 degrees, so that the light transmitted through the quarter wave plate 30 is Circularly polarized light.
  • the angle between the first polarizing layer 20 and the quarter-wave plate 30 is 45 degrees, such that the polarization of the light transmitted through the first polarizing layer 20 and the mica of the quarter-wave plate 30
  • the angle between the optical axis faces is 45 degrees, and the light transmitted through the first polarizing layer 20 passes through the quarter wave plate 30 to form circularly polarized light.
  • an angle between the second polarizing layer 40 and the quarter-wave plate 30 is 45 degrees, so that the light transmitted through the second polarizing layer 40 It is linearly polarized light.
  • the angle between the second polarizing layer 40 and the quarter-wave plate 30 is 45 degrees, so that the circularly polarized light transmitted through the quarter-wave plate 30 passes through the second Linearly polarized light is formed after the polarizing layer 40.
  • the first polarizing layer 20 is perpendicular to the second polarizing layer 40 such that an axial angle of an absorption axis of the first polarizing layer 20 and the second polarizing layer 40 is 90 degrees.
  • the first polarizing layer 20 is perpendicular to the second polarizing layer 40 such that the absorption axis of the first polarizing layer 20 and the second polarizing layer 40 has an axial angle of 90 degrees, that is, the first polarizing layer. 20 and the absorption axis of the second polarizing layer 40 are perpendicular to the axial direction.
  • the first polarizing layer 20 is parallel to the second polarizing layer 40 such that an axial angle of an absorption axis of the first polarizing layer 20 and the second polarizing layer 40 is 0 degree.
  • the first polarizing layer 20 is parallel to the second polarizing layer 40 such that the absorption axis of the first polarizing layer 20 and the second polarizing layer 40 has an axial angle of 0 degrees, that is, the first polarizing layer 20 and The absorption axis of the second polarizing layer 40 is axially parallel.
  • the metal traces are denser and the line width is larger. Therefore, the metal reflective problem caused by the non-display area is compared with the display area of the liquid crystal panel. more serious.
  • a portion of the second polarizing layer 40 that is only located in the display region of the liquid crystal display panel has a polarizing function to solve the metal reflective problem in the non-display region.
  • the portion of the second polarizing layer 40 located in the non-display area of the liquid crystal display has a polarizing function.
  • the formed PVA is first dyed, and the formed PVA is completely immersed by using an iodine solution, and then the dyed PVA is stretched.
  • the formed PVA having a length of 1 m is stretched to 7 to 8 m or the like, and further to the second polarizing layer 40.
  • the polarizing plate 1 includes a first protective layer 10, a first polarizing layer 20, a quarter wave plate 30, a second polarizing layer 40, and a second protective layer 50; the second polarizing layer 40 is located at the liquid crystal. a portion of the display area in the display screen has a polarizing function; an angle between the first polarizing layer 20 and the quarter wave plate 30 is 45 degrees; the second polarizing layer 40 and the quarter wave The angle between the sheets 30 is 45 degrees; the first polarizing layer 20 is perpendicular to the second polarizing layer 40, and the absorption axis of the first polarizing layer 20 and the second polarizing layer 40 has an axial angle of 90 ⁇ 5 degrees. .
  • the polarizing plate can solve the problem of metal reflection in the non-display area.
  • the principle is as follows: natural light passes through the first protective layer 10 and becomes linearly polarized light, and then transmits through a quarter.
  • the phase difference film (wave plate) then becomes circularly polarized light, and has a polarization function in the second polarizing layer 40. After the circularly polarized light passes through the region, it becomes linearly polarized light transmitted through the first polarizing layer 20.
  • the direction of polarization of the reflected light changes again, by the second layer PVA partially absorbed and passed through the first layer of PVA
  • the back-reflected light is absorbed for the second time to achieve the purpose of reducing the reflected light of the metal; and in the region of the second polarizing layer 40 that does not have the polarizing function, the circularly polarized light passes through the region without change, after passing through the metal trace ( The metal layer) changes its optical rotation state after reflection, and the left-handed rotation becomes right-handed.
  • the quarter-phase retardation film After passing through the quarter-phase retardation film, it becomes linearly polarized light, and the reflected light and the linearly polarized light which is transmitted through the first polarizing layer 20 upon incidence are polarized.
  • the direction is vertical and thus is completely absorbed by the first polarizing layer 20 without the transmitted light being transmitted.
  • the polarizing plate 2 includes a first protective layer 10, a first polarizing layer 20, a quarter wave plate 30, a second polarizing layer 40, and a second protective layer 50; the second polarizing layer 40 is located at the liquid crystal. a portion of the display area in the display screen has a polarizing function; an angle between the first polarizing layer 20 and the quarter wave plate 30 is 45 degrees; the second polarizing layer 40 and the quarter wave The angle between the sheets 30 is 45 degrees; the first polarizing layer 20 is parallel to the second polarizing layer 40, and the absorption axis of the first polarizing layer 20 and the second polarizing layer 40 has an axial angle of 0 ⁇ 5 degrees. .
  • the polarizing plate 2 can also solve the problem of metal reflection in the non-display area. As shown in FIG. 3, the principle is as follows: natural light passes through the first protective layer 10 and becomes linearly polarized light, and then transmits through a quarter. The phase difference film (wave plate) then becomes circularly polarized light, and has a polarization function in the second polarizing layer 40. After the circularly polarized light passes through the region, it becomes linearly polarized light transmitted through the first polarizing layer 20.
  • the quarter-phase retardation film After passing through the quarter-phase retardation film, it becomes linearly polarized light, and the reflected light and the linearly polarized light which is transmitted through the first polarizing layer 20 upon incidence are polarized.
  • the direction is vertical and thus is completely absorbed by the first polarizing layer 20 without the transmitted light being transmitted.
  • the polarizing plate 3 includes a first protective layer 10, a first polarizing layer 20, a quarter wave plate 30, a second polarizing layer 40, and a second protective layer 50; the second polarizing layer 40 is located at the liquid crystal. a portion of the display area in the display screen has a polarizing function, and a portion of the second polarizing layer 40 located in the non-display area of the liquid crystal display has a polarizing function; between the first polarizing layer 20 and the quarter wave plate 30 The angle of the included angle is 45 degrees; the angle between the second polarizing layer 40 and the quarter-wave plate 30 is 45 degrees; the first polarizing layer 20 is perpendicular to the second polarizing layer 40, The absorption axis axial angle of the first polarizing layer 20 and the second polarizing layer 40 is 90 ⁇ 5 degrees.
  • the principle is as follows: natural light passes through the first protective layer 10 and becomes linearly polarized light, and then transmits through a quarter.
  • the retardation film (wave plate) then becomes circularly polarized light, and after the circularly polarized light passes through the second polarizing layer 40, it becomes linearly polarized light perpendicular to the linearly polarized light transmitted through the first polarizing layer 20, and then passes through the metal.
  • the polarization direction of the reflected light changes again, and is separated by the second layer.
  • the PVA is partially absorbed and passed through the first layer of PVA, the reflected light is absorbed for a second time, thereby achieving the purpose of reducing the reflected light of the metal.
  • the polarizing plate 4 includes a first protective layer 10, a first polarizing layer 20, a quarter wave plate 30, a second polarizing layer 40, and a second protective layer 50; the second polarizing layer 40 is located at the liquid crystal. a portion of the display area in the display screen has a polarizing function, and a portion of the second polarizing layer 40 located in the non-display area of the liquid crystal display has a polarizing function; between the first polarizing layer 20 and the quarter wave plate 30 The angle of the included angle is 45 degrees; the angle between the second polarizing layer 40 and the quarter-wave plate 30 is 45 degrees; the first polarizing layer 20 is perpendicular to the second polarizing layer 40, The absorption axis axial angle of the first polarizing layer 20 and the second polarizing layer 40 is 0 ⁇ 5 degrees.
  • the principle is as follows: natural light passes through the first protective layer 10 and becomes linearly polarized light, and then transmits through a quarter.
  • the retardation film (wave plate) then becomes circularly polarized light, and after the circularly polarized light passes through the second polarizing layer 40, it becomes linearly polarized light parallel to the linearly polarized light transmitted through the first polarizing layer 20, and then passes through the metal.
  • the polarization direction of the reflected light changes again, and is separated by the second layer.
  • the PVA is partially absorbed and passed through the first layer of PVA, the reflected light is absorbed for a second time, thereby achieving the purpose of reducing the reflected light of the metal.
  • the technical solution of the present invention provides a quarter-wave plate 30 between the first polarizing layer 20 and the second polarizing layer 40, and the portion of the second polarizing layer 40 located in the display area of the liquid crystal display has a polarizing function.
  • the first polarizing layer 20 and the second polarizing layer 40 have an absorption axis axial angle of 0 ⁇ 5 degrees or 90 ⁇ 5 degrees, so that natural light can be sequentially transmitted through the first polarizing layer 20 and the quarter wave plate 30.
  • the light of the second polarizing layer 40 is reflected by the metal of the liquid crystal display panel, and then sequentially transmitted through the second polarizing layer 40, the quarter wave plate 30, and the first polarizing layer 20, thereby enabling the light to be first.
  • the polarizing layer 20 and the second polarizing layer 40 are sufficiently absorbed, and the absorption axis axial angle between the first polarizing layer 20 and the second polarizing layer 40 is such that the first polarizing layer 20 and the second polarizing layer 40 can absorb different lines. Polarized light, thereby achieving the purpose of reducing the reflected light of the metal. Further, in the region of the second polarizing layer 40 that does not have a polarizing function, the circularly polarized light does not change after passing through the region, and the optical rotation state changes after being reflected by the metal trace, and the left-handed rotation becomes a right-handed rotation, after passing through the quarter.
  • One phase difference film becomes linearly polarized light, and the reflected light is perpendicular or parallel to the polarization direction of the linearly polarized light that is transmitted through the first polarizing layer 20 when incident, and thus is completely absorbed by the first polarizing layer 20 without reflecting light.
  • the present invention also provides a liquid crystal display panel, the liquid crystal display panel and the polarizing plate.
  • the specific structure of the polarizing plate refers to the above embodiment. Since the liquid crystal display panel of the embodiment adopts all the technical solutions of all the above embodiments, the same All the beneficial effects brought about by the technical solutions of the above embodiments are not described herein again.
  • a polarizing plate 1 or a polarizing plate 2 may be used, and in the central region of the liquid crystal panel, a polarizing plate 3 or a polarizing plate 4 may be used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种偏光板及液晶显示屏，其中，偏光板包括依次贴合的第一保护层（10）、第一偏光层（20）、四分之一波片（30）、第二偏光层（40）及第二保护层（50）；第二偏光层（40）位于液晶显示屏中显示区域的部分具有偏光功能；第一偏光层（20）和第二偏光层（40）的吸收轴轴向角度为0±5度或90±5度，能够使得自然光依次透过第一偏光层（20）、四分之一波片（30）及第二偏光层（40）的光，通过液晶显示屏的金属等进行反射后再依次透过第二偏光层（40）、四分之一波片（30）及第一偏光层（20），进而使得光能够被第一偏光层（20）及第二偏光层（40）充分吸收，并且第一偏光层（20）和第二偏光层（40）之间的吸收轴轴向角度，使得第一偏光层（20）及第二偏光层（40）能够吸收不同的线偏振光，从而达到降低金属反射光的目的。

Description

偏光板及液晶显示屏
技术领域
本发明涉及液晶显示器件技术领域，特别涉及一种偏光板及液晶显示屏。
背景技术
液晶显器件包括一块液晶面板和一块背光系统。该液晶面板由两层玻璃基板中间夹一液晶层组成，玻璃基板的上下外表面贴有偏光板。液晶显示器件利用液晶和偏光板来实现光开关功能，液晶用于对偏振光的调制，而偏光板则用于形成偏振光并选择吸收偏振光。
通常，贴在液晶面板的上下外表面的上下偏光板的材料基本相同，每一偏光板由一层偏光层PVA(Polyvinyl Alcohol，聚乙烯醇)搭配双层TAC(Triacetyl Cellulose，三醋酸纤维素)层所组成的。但是，这种偏光板的透过率在 40% 左右，虽然能一定程度降低金属反射光，但并不能完全消除金属反射光，从而影响用户的观看舒适度以及影响电视整体美观度。
发明内容
本发明的主要目的是提供一种偏光板及液晶显示屏，旨在解决现有偏光板影响用户的观看舒适度以及影响电视整体美观度的技术问题。
为实现上述目的，本发明提供一种偏光板，应用于液晶显示屏，所述偏光板设置于所述液晶显示屏中TFT玻璃基板的外侧，所述偏光板包括依次贴合的第一保护层、第一偏光层、四分之一波片、第二偏光层及第二保护层；
所述第二偏光层位于所述液晶显示屏中显示区域的部分具有偏光功能；
所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0±5度或90±5度。
在一种实施方式中，所述第一保护层及所述第二保护层的材料为TAC三醋酸纤维素。
在一种实施方式中，所述第一偏光层及所述第二偏光层的材料为PVA聚乙烯醇。
在一种实施方式中，所述第二偏光层位于所述液晶显示屏中非显示区域的部分具有偏光功能。
在一种实施方式中，所述第一偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述四分之一波片的光为圆偏振光。
在一种实施方式中，所述第二偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述第二偏光层的光为线偏振光，
在一种实施方式中，所述第一偏光层与所述第二偏光层垂直，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为90度。
在一种实施方式中，所述第一偏光层与所述第二偏光层平行，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0度。
本发明还提出一种主题二，液晶显示屏，所述液晶显示屏包括上述任一项所述的偏光板。
本发明技术方案通过在第一偏光层与第二偏光层之间设置四分之一波片，并且第二偏光层位于所述液晶显示屏中显示区域的部分具有偏光功能，所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0±5度或90±5度，能够使得自然光依次透过第一偏光层、四分之一波片及第二偏光层的光，通过液晶显示屏的金属等进行反射后再依次透过第二偏光层、四分之一波片及第一偏光层，进而使得光能够被第一偏光层及第二偏光层充分吸收，并且第一偏光层和第二偏光层之间的吸收轴轴向角度，使得第一偏光层及第二偏光层能够吸收不同的线偏振光，从而达到降低金属反射光的目的。并且，在第二偏光层中不具有偏光功能的区域，圆偏振光透过该区域后无变化，在经过金属走线反射后其旋光状态发生改变，左旋变为右旋，经过四分之一波片后变为线偏振光，此反射光与入射时透过第一偏光层的线偏振光偏振方向垂直或平行，因此会被第一偏光层完全吸收而不会有反射光透过。
附图说明
图1为本发明偏光板一实施例的结构示意图；
图2为本发明偏光板一实施例的原理示意图；
图3为本发明偏光板另一实施例的原理示意图；
图4为本发明偏光板又一实施例的原理示意图；
图5为本发明偏光板再一实施例的原理示意图。
附图标号说明：
10 第一保护层 20 第一偏光层
30 四分之一波片 40 第二偏光层
50 第二保护层
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种偏光板。
参照图1至5，其中，图1为本发明偏光板一实施例的结构示意图；图2为本发明偏光板一实施例的原理示意图；图3为本发明偏光板另一实施例的原理示意图；图4为本发明偏光板又一实施例的原理示意图；图5为本发明偏光板再一实施例的原理示意图。
在本发明实施例中，该偏光板应用于液晶显示屏，所述偏光板设置于所述液晶显示屏中TFT （Thin Film Transistor，薄膜晶体管）玻璃基板的外侧，该偏光板包括依次贴合的第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50。
所述第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能。所述第一偏光层20和所述第二偏光层40的吸收轴轴向角度为0±5度或90±5度。
在本实施例中，第一保护层10的材料为TAC，第二保护层50的材料为TAC；第一偏光层20的材料为PVA，第二偏光层40的材料为PVA。其中，第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50之间可通过黏着剂进行黏着。在本实施例中，偏光板设置于所述液晶显示屏中TFT玻璃基板的外侧，即靠近用户的一侧；在其他实施例中，该偏光板还可以设置于CF玻璃基板中远离TFT玻璃基板的一侧。
在本实施例中，在第一偏光层20或第二偏光层40的制作成型时，首先对已成型PVA进行染色处理，具体采用碘溶液浸泡已成型PVA，其中，对部分已成型PVA进行完全浸泡，对剩余的已成型PVA仅浸泡形成的第二偏光层40中位于液晶显示屏中显示区域的部分，而后对染色处理的已成型PVA进行拉伸处理，例如，将长度为1m的已成型PVA拉伸至7~8m等，进而的到偏光层，其中，完全浸泡的已成型PVA最后得到第一偏光层20，仅浸泡形成的第二偏光层40中位于液晶显示屏中显示区域的部分的已成型PVA最后得到第二偏光层40。
其中，第一偏光子和第二偏光子的吸收轴轴向角度精度相差0～10度。具体地，第一偏光层20和所述第二偏光层40的吸收轴轴向角度为0度或90度，即第一偏光层20和所述第二偏光层40的吸收轴轴向平行或轴向垂直。
在一实施例中，所述第一偏光层20与所述四分之一波片30之间的夹角的角度为45度，以使透过所述四分之一波片30的光为圆偏振光。
本实施例中，第一偏光层20与所述四分之一波片30之间的45度夹角，使得透过第一偏光层20的光的偏振和四分之一波片30的云母的光轴面之间的夹角为45度，进而透过第一偏光层20的光透过四分之一波片30后形成圆偏振光。
进一步地，在一实施方式中，所述第二偏光层40与所述四分之一波片30之间的夹角的角度为45度，以使透过所述第二偏光层40的光为线偏振光。
在本实施例中，第二偏光层40与所述四分之一波片30之间的夹角的角度为45度，使得透过四分之一波片30的圆偏振光透过第二偏光层40后形成线偏振光。
优选地，在一实施例中，所述第一偏光层20与所述第二偏光层40垂直，以使所述第一偏光层20和所述第二偏光层40的吸收轴轴向角度为90度。
在本实施例中，第一偏光层20与所述第二偏光层40垂直，使得第一偏光层20和所述第二偏光层40的吸收轴轴向角度为90度，即第一偏光层20和所述第二偏光层40的吸收轴轴向垂直。
优选地，又一实施例中，所述第一偏光层20与所述第二偏光层40平行，以使所述第一偏光层20和所述第二偏光层40的吸收轴轴向角度为0度。
在本实施例中，第一偏光层20与所述第二偏光层40平行，使得第一偏光层20和第二偏光层40的吸收轴轴向角度为0度，即第一偏光层20和所述第二偏光层40的吸收轴轴向平行。
一般情况下，在液晶显示屏的液晶面板边缘的非显示区域中，金属走线更为密集，线路幅宽更大，因此，与液晶面板的显示区域相比，非显示区域产生的金属反光问题更严重。本实施例中，可通过第二偏光层40中仅位于所述液晶显示屏中显示区域的部分具有偏光功能，以解决非显示区域金属反光问题。
进一步地，另一种实施方式中，第二偏光层40位于所述液晶显示屏中非显示区域的部分具有偏光功能。
在本实施例中，在第二偏光层40的制作成型时，首先对已成型PVA进行染色处理，具体采用碘溶液对已成型PVA，进行完全浸泡，而后对染色处理的已成型PVA进行拉伸处理，例如，将长度为1m的已成型PVA拉伸至7~8m等，进而的到第二偏光层40。
容易理解，通过上述实施方式能够形成4种典型的偏光板。
偏光板一：包括依次贴合的第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50；第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能；第一偏光层20与所述四分之一波片30之间的夹角的角度为45度；第二偏光层40与所述四分之一波片30之间的夹角的角度为45度；第一偏光层20与所述第二偏光层40垂直，第一偏光层20和第二偏光层40的吸收轴轴向角度为90±5度。
该偏光板一可以解决非显示区域金属反光问题。如图2所示，其原理如下，自然光透过第一保护层10后变为线偏振光，再透过四分之一 位相差膜（波片）之后变为圆偏振光，在第二偏光层40中具有偏光功能的区域，圆偏振光透过该区域后，变为与透过第一偏光层20的线偏振光垂直的线偏振光，而后经过金属走线（金属层）反射后反射光偏振方向再次变化，被第二层 PVA 部分吸收且经过第一层 PVA 后反射光被第二次吸收，从而达到降低金属反射光的目的；而在第二偏光层40中不具有偏光功能的区域，圆偏振光透过该区域后无变化，在经过金属走线（金属层）反射后其旋光状态发生改变，左旋变为右旋，经过四分之一位相差膜后变为线偏振光，此反射光与入射时透过第一偏光层20的线偏振光偏振方向垂直，因此会被第一偏光层20完全吸收而不会有反射光透过。
偏光板二：包括依次贴合的第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50；第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能；第一偏光层20与所述四分之一波片30之间的夹角的角度为45度；第二偏光层40与所述四分之一波片30之间的夹角的角度为45度；第一偏光层20与所述第二偏光层40平行，第一偏光层20和第二偏光层40的吸收轴轴向角度为0±5度。
该偏光板二也可以解决非显示区域金属反光问题。如图3所示，其原理如下，自然光透过第一保护层10后变为线偏振光，再透过四分之一 位相差膜（波片）之后变为圆偏振光，在第二偏光层40中具有偏光功能的区域，圆偏振光透过该区域后，变为与透过第一偏光层20的线偏振光平行的线偏振光，而后经过金属走线（金属层）反射后反射光偏振方向再次变化，被第二层 PVA 部分吸收且经过第一层 PVA 后反射光被第二次吸收，从而达到降低金属反射光的目的；而在第二偏光层40中不具有偏光功能的区域，圆偏振光透过该区域后无变化，在经过金属走线（金属层）反射后其旋光状态发生改变，左旋变为右旋，经过四分之一位相差膜后变为线偏振光，此反射光与入射时透过第一偏光层20的线偏振光偏振方向垂直，因此会被第一偏光层20完全吸收而不会有反射光透过。
偏光板三：包括依次贴合的第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50；第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能，且第二偏光层40位于所述液晶显示屏中非显示区域的部分具有偏光功能；第一偏光层20与所述四分之一波片30之间的夹角的角度为45度；第二偏光层40与所述四分之一波片30之间的夹角的角度为45度；第一偏光层20与所述第二偏光层40垂直，第一偏光层20和第二偏光层40的吸收轴轴向角度为90±5度。
如图4所示，其原理如下，自然光透过第一保护层10后变为线偏振光，再透过四分之一 位相差膜（波片）之后变为圆偏振光，圆偏振光透过第二偏光层40后，变为与透过第一偏光层20的线偏振光垂直的线偏振光，而后经过金属走线（金属层）反射后反射光偏振方向再次变化，被第二层 PVA 部分吸收且经过第一层 PVA 后反射光被第二次吸收，从而达到降低金属反射光的目的。
偏光板四：包括依次贴合的第一保护层10、第一偏光层20、四分之一波片30、第二偏光层40及第二保护层50；第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能，且第二偏光层40位于所述液晶显示屏中非显示区域的部分具有偏光功能；第一偏光层20与所述四分之一波片30之间的夹角的角度为45度；第二偏光层40与所述四分之一波片30之间的夹角的角度为45度；第一偏光层20与所述第二偏光层40垂直，第一偏光层20和第二偏光层40的吸收轴轴向角度为0±5度。
如图5所示，其原理如下，自然光透过第一保护层10后变为线偏振光，再透过四分之一 位相差膜（波片）之后变为圆偏振光，圆偏振光透过第二偏光层40后，变为与透过第一偏光层20的线偏振光平行的线偏振光，而后经过金属走线（金属层）反射后反射光偏振方向再次变化，被第二层 PVA 部分吸收且经过第一层 PVA 后反射光被第二次吸收，从而达到降低金属反射光的目的。
本发明技术方案通过在第一偏光层20与第二偏光层40之间设置四分之一波片30，并且第二偏光层40位于所述液晶显示屏中显示区域的部分具有偏光功能，所述第一偏光层20和所述第二偏光层40的吸收轴轴向角度为0±5度或90±5度，能够使得自然光依次透过第一偏光层20、四分之一波片30及第二偏光层40的光，通过液晶显示屏的金属等进行反射后再依次透过第二偏光层40、四分之一波片30及第一偏光层20，进而使得光能够被第一偏光层20及第二偏光层40充分吸收，并且第一偏光层20和第二偏光层40之间的吸收轴轴向角度，使得第一偏光层20及第二偏光层40能够吸收不同的线偏振光，从而达到降低金属反射光的目的。并且，在第二偏光层40中不具有偏光功能的区域，圆偏振光透过该区域后无变化，在经过金属走线反射后其旋光状态发生改变，左旋变为右旋，经过四分之一位相差膜后变为线偏振光，此反射光与入射时透过第一偏光层20的线偏振光偏振方向垂直或平行，因此会被第一偏光层20完全吸收而不会有反射光透过。
本发明还提出一种液晶显示屏，该液晶显示屏和偏光板，该偏光板的具体结构参照上述实施例，由于本实施例的液晶显示屏采用了上述所有实施例的全部技术方案，因此同样具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
其中，在液晶显示屏的液晶面板的边缘区域可采用偏光板一或偏光板二，在液晶面板的中央区域可采用偏光板三或偏光板四。
应当说明的是，本发明的各个实施例的技术方案可以相互结合，但是必须是以本领域的技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当人认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种偏光板，应用于液晶显示屏，所述偏光板设置于所述液晶显示屏中TFT玻璃基板的外侧，其特征在于，所述偏光板包括依次贴合的第一保护层、第一偏光层、四分之一波片、第二偏光层及第二保护层；
    所述第二偏光层位于所述液晶显示屏中显示区域的部分具有偏光功能；
    所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0±5度或90±5度。
  2. 如权利要求1所述的偏光板，其特征在于，所述第一偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述四分之一波片的光为圆偏振光。
  3. 如权利要求2所述的偏光板，其特征在于，所述第二偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述第二偏光层的光为线偏振光，
  4. 如权利要求3所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层垂直，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为90度。
  5. 如权利要求3所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层平行，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0度。
  6. 如权利要求1所述的偏光板，其特征在于，所述第一保护层及所述第二保护层的材料为TAC三醋酸纤维素。
  7. 如权利要求6所述的偏光板，其特征在于，所述第一偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述四分之一波片的光为圆偏振光。
  8. 如权利要求7所述的偏光板，其特征在于，所述第二偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述第二偏光层的光为线偏振光，
  9. 如权利要求8所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层垂直，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为90度。
  10. 如权利要求8所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层平行，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0度。
  11. 如权利要求1所述的偏光板，其特征在于，所述第一偏光层及所述第二偏光层的材料为PVA聚乙烯醇。
  12. 如权利要求11所述的偏光板，其特征在于，所述第一偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述四分之一波片的光为圆偏振光。
  13. 如权利要求12所述的偏光板，其特征在于，所述第二偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述第二偏光层的光为线偏振光，
  14. 如权利要求13所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层垂直，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为90度。
  15. 如权利要求13所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层平行，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为0度。
  16. 如权利要求1所述的偏光板，其特征在于，所述第二偏光层位于所述液晶显示屏中非显示区域的部分具有偏光功能。
  17. 如权利要求16所述的偏光板，其特征在于，所述第一偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述四分之一波片的光为圆偏振光。
  18. 如权利要求17所述的偏光板，其特征在于，所述第二偏光层与所述四分之一波片之间的夹角的角度为45度，以使透过所述第二偏光层的光为线偏振光，
  19. 如权利要求18所述的偏光板，其特征在于，所述第一偏光层与所述第二偏光层垂直，以使所述第一偏光层和所述第二偏光层的吸收轴轴向角度为90度。
  20. 一种液晶显示屏，其特征在于，所述液晶显示屏包括权利要求1所述的偏光板。
PCT/CN2018/094302 2017-09-04 2018-07-03 偏光板及液晶显示屏 Ceased WO2019042008A1 (zh)

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340561B (zh) * 2017-09-04 2020-07-21 深圳Tcl新技术有限公司 偏光板及液晶显示屏
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CN110233165A (zh) * 2019-05-13 2019-09-13 武汉华星光电半导体显示技术有限公司 显示装置
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CN110133787B (zh) * 2019-05-23 2022-01-11 Oppo广东移动通信有限公司 偏光片、显示模组及移动终端
CN111208596A (zh) * 2020-03-05 2020-05-29 武汉华星光电半导体显示技术有限公司 一种偏光片及显示面板
CN111538183A (zh) * 2020-05-18 2020-08-14 东莞晶邦光电科技有限公司 一种高清显示屏及高清贴合工艺
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TWI757076B (zh) * 2020-12-04 2022-03-01 中強光電股份有限公司 顯示裝置
CN115201956B (zh) * 2021-04-09 2025-07-29 群创光电股份有限公司 电子装置及电子装置的制造方法
CN113917589B (zh) * 2021-09-10 2024-10-18 明基材料有限公司 全周曲面偏光板
CN114578569B (zh) * 2022-03-18 2025-10-03 立景创新科技股份有限公司 显示模块及其制造方法
CN116092391A (zh) * 2023-01-09 2023-05-09 深圳市光科全息技术有限公司 光学膜片、led显示模组及led显示屏

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020945A (en) * 1996-11-11 2000-02-01 Dowa Mining Co., Ltd. Display device with a transparent optical filter
CN204790249U (zh) * 2015-06-30 2015-11-18 上海冠显光电科技有限公司 一种阳光下可视的显示装置
CN105459825A (zh) * 2014-09-30 2016-04-06 大陆汽车系统公司 用于内部车辆显示器的死前端透镜
CN106324886A (zh) * 2015-06-22 2017-01-11 上海冠显光电科技有限公司 一种阳光下可视的显示模组
CN107340561A (zh) * 2017-09-04 2017-11-10 深圳Tcl新技术有限公司 偏光板及液晶显示屏

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088067A (en) * 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
DE69632523T2 (de) * 1995-11-22 2005-05-25 Koninklijke Philips Electronics N.V. Beleuchtungssystem, linearer polarisator für ein solches beleuchtungssystem und anzeigevorrichtung mit einem solchen beleuchtungssystem
US5973760A (en) * 1997-08-06 1999-10-26 Rockwell Science Center, Inc. Display apparatus having quarter-wave plate positioned to eliminate conflicts with polarized sunglasses
CN106154637A (zh) * 2016-09-23 2016-11-23 京东方科技集团股份有限公司 一种液晶显示面板、显示装置及制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020945A (en) * 1996-11-11 2000-02-01 Dowa Mining Co., Ltd. Display device with a transparent optical filter
CN105459825A (zh) * 2014-09-30 2016-04-06 大陆汽车系统公司 用于内部车辆显示器的死前端透镜
CN106324886A (zh) * 2015-06-22 2017-01-11 上海冠显光电科技有限公司 一种阳光下可视的显示模组
CN204790249U (zh) * 2015-06-30 2015-11-18 上海冠显光电科技有限公司 一种阳光下可视的显示装置
CN107340561A (zh) * 2017-09-04 2017-11-10 深圳Tcl新技术有限公司 偏光板及液晶显示屏

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