WO2014079096A1 - 用于液晶面板的补偿系统及液晶显示装置 - Google Patents

用于液晶面板的补偿系统及液晶显示装置 Download PDF

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Publication number
WO2014079096A1
WO2014079096A1 PCT/CN2012/085663 CN2012085663W WO2014079096A1 WO 2014079096 A1 WO2014079096 A1 WO 2014079096A1 CN 2012085663 W CN2012085663 W CN 2012085663W WO 2014079096 A1 WO2014079096 A1 WO 2014079096A1
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WIPO (PCT)
Prior art keywords
liquid crystal
film
compensation
crystal panel
biaxial
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Ceased
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PCT/CN2012/085663
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English (en)
French (fr)
Inventor
康志聪
海博
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to DE112012007038.0T priority Critical patent/DE112012007038B4/de
Priority to US13/704,987 priority patent/US9019452B2/en
Publication of WO2014079096A1 publication Critical patent/WO2014079096A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02B5/3083—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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/02—Number of plates being 2
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/03—Number of plates being 3
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/05—Single plate on one side of the LC cell
    • 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
    • G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
    • G02F2413/12—Biaxial compensators

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a compensation system for a liquid crystal panel and a liquid helium display device.
  • the compensation film is generally for the VA display mode, and mainly includes a single-layer double-axis compensation film or a double-layer dual-axis compensation film.
  • the compensation value of the compensation film required to achieve the minimum dark state light leakage will be different. If it is not properly matched, not only the liquid crystal display device will leak light in a large viewing angle in a dark state, but also affect the contrast of a large viewing angle and the clarity of viewing.
  • FIG. 1 is a simulation diagram of dark state light leakage distribution after compensation by the existing double-layer biaxial compensation film
  • FIG. 2 is a simulation diagram of full-view contrast distribution after compensation by the double-layer biaxial compensation film.
  • the liquid crystal optical path difference An X d is set to 342.8 nm
  • the in-plane compensation value Ro of the double-layered biaxial compensation film is 70 nm
  • the thickness direction compensation value Rth of the double-layered biaxial compensation film is 160 nm.
  • the azimuth angle is 30 after being compensated by the double-layered biaxial compensation film. -60. 120. -150. 210. -240. And 300. -330. There are still serious light leaks in the area, so the contrast of these viewing angles is low.
  • the technical problem to be solved by the present invention is to provide a compensation system for a liquid crystal panel and a liquid crystal display device to effectively reduce the dark light leakage phenomenon of the liquid crystal panel.
  • a technical solution adopted by the present invention is: Providing a liquid crystal display device, the liquid crystal display device comprising:
  • the liquid crystal panel is provided with a liquid crystal layer comprising a plurality of liquid crystal molecules.
  • the refractive index anisotropy of the liquid crystal layer for incident light having a wavelength of 550 nm is ⁇
  • the thickness of the liquid crystal layer is d
  • the pretilt angle of the liquid crystal molecules is ⁇ ;
  • the first biaxial compensation film has an in-plane compensation value of Rol for incident light having a wavelength of 550 nm, a thickness direction compensation value of Rthl, and a second biaxial compensation film for wavelength
  • the in-plane compensation value Ro2 of the incident light of 550 nm and the compensation value of the thickness direction are Rth2, where:
  • the liquid crystal display device further includes a first polarizing film and a second polarizing film disposed on both sides of the liquid crystal panel, the first polarizing film and the first biaxial compensation film are located on one side of the liquid crystal panel, and the first polarizing film is The absorption axis is at 90° to the slow axis of the first biaxial compensation film, the second polarizing film and the second biaxial compensation film are located on the other side of the liquid crystal panel, and the absorption axis of the second polarizing film is slower than the second biaxial compensation film
  • the shaft is at 90.
  • the first biaxial compensation film is disposed between the first polarizing film and the liquid crystal panel
  • the second biaxial compensation film is disposed between the second polarizing film and the liquid crystal panel.
  • the first polarizing film and the second polarizing film are polyvinyl alcohol films.
  • the liquid crystal display device further includes a first pressure sensitive adhesive layer and a second pressure sensitive adhesive layer.
  • the first pressure sensitive adhesive layer is disposed between the first biaxial compensation film and the liquid crystal panel, and the second pressure sensitive adhesive is disposed in the second Between the biaxial compensation film and the liquid crystal panel.
  • the liquid crystal display device further comprises a first triacetyl cellulose film and a second triacetate fiber a first film, the first cellulose triacetate film is disposed on the surface of the first polarizing film away from the first biaxial compensation film, and the second cellulose triacetate film is disposed on the surface of the second polarizing film away from the second biaxial compensation film .
  • another technical solution adopted by the present invention is: Providing a compensation system for a liquid crystal panel, the compensation system comprising a first biaxial compensation film and a second pair disposed on both sides of the liquid crystal panel
  • the axial compensation film, the first biaxial compensation film has an in-plane compensation value of Rol for incident light having a wavelength of 550 nm, a thickness direction compensation value of Rthl, and an in-plane compensation value of the second biaxial compensation film for incident light having a wavelength of 550 nm.
  • Ro2 the thickness direction compensation value is Rth2, where:
  • the liquid crystal optical path difference ⁇ X d of the liquid crystal panel is: 324.3 nm ⁇ ⁇ d ⁇ 342.8 nm.
  • another technical solution adopted by the present invention is: Providing a liquid crystal display device, the liquid crystal display device comprising:
  • the liquid crystal panel is provided with a liquid crystal layer including a plurality of liquid crystal molecules, and the liquid crystal layer is for a wavelength
  • the refractive index anisotropy of the incident light at 550 nm is ⁇ , the thickness of the liquid crystal layer is d, and the pretilt angle of the liquid crystal molecules is ⁇ ;
  • the first biaxial compensation film and the second biaxial compensation film, the first biaxial compensation film has an in-plane compensation value of Rol for the incident light having a wavelength of 550 nm, a thickness direction compensation value of Rthl, and a second biaxial compensation film for the wavelength
  • the in-plane compensation value Ro2 of the incident light of 550 nm, the thickness direction compensation value is Rth2, where:
  • the liquid crystal display device further includes a first polarizing film and a second polarizing film disposed on both sides of the liquid crystal panel, the first polarizing film and the first biaxial compensation film are located on one side of the liquid crystal panel, and the first polarizing film is The absorption axis is at 90° to the slow axis of the first biaxial compensation film, the second polarizing film and the second biaxial compensation film are located on the other side of the liquid crystal panel, and the absorption axis of the second polarizing film is slower than the second biaxial compensation film Axis into 90
  • the first polarizing film and the second polarizing film are polyvinyl alcohol films.
  • the first biaxial compensation film is disposed between the first polarizing film and the liquid crystal panel
  • the second biaxial compensation film is disposed between the second polarizing film and the liquid crystal panel.
  • the liquid crystal display device further includes a first pressure sensitive adhesive layer and a second pressure sensitive adhesive layer.
  • the first pressure sensitive adhesive layer is disposed between the first biaxial compensation film and the liquid crystal panel, and the second pressure sensitive adhesive is disposed in the second Between the biaxial compensation film and the liquid crystal panel.
  • the liquid crystal display device further includes a first cellulose triacetate film and a second cellulose triacetate film, wherein the first cellulose triacetate film is disposed on the surface of the first polarizing film away from the first biaxial compensation film, and the second The cellulose acetate film is disposed on the surface of the second polarizing film away from the second biaxial compensation film.
  • the present invention can effectively reduce the dark state light leakage phenomenon of the liquid crystal panel by appropriately setting the compensation value of the double-layer biaxial compensation film, and effectively increase the large viewing angle (non-horizontal, Contrast and sharpness of the vertical azimuth angle) to enhance these large viewing angles The range of viewing angles.
  • 1 is a simulation diagram of dark state light leakage distribution after compensation by an existing double-layer biaxial compensation film
  • FIG. 2 is a schematic diagram of a full-view contrast distribution after compensation by the conventional double-layer biaxial compensation film
  • FIG. 3 is a schematic structural view of a liquid crystal display device according to a first embodiment of the present invention
  • FIG. 4 is a schematic structural view of a liquid crystal panel according to a first embodiment of the present invention.
  • Figure 5 is a schematic view showing the slow axis of the first biaxial compensation film and the absorption axis of the first polarizing film in the first embodiment of the present invention
  • Figure 6 is a schematic view showing the slow axis of the second biaxial compensation film and the absorption axis of the second polarizing film in the first embodiment of the present invention
  • Figure 9 is a graph showing a trend of dark light leakage with a compensation value when the liquid crystal optical path difference is 324.3 nm in the liquid crystal display device of the second embodiment of the present invention.
  • Figure 10 is a graph showing a trend of dark light leakage with a compensation value when the liquid crystal optical path difference is 342.8 nm in the liquid crystal display device of the second embodiment of the present invention.
  • FIG. 11 is a dark state light leakage distribution diagram compensated by a compensation system according to an embodiment of the present invention.
  • Figure 12 is a full-view contrast distribution map compensated by the compensation system of the embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a liquid crystal display device according to a first embodiment of the present invention.
  • the liquid crystal display device 1 includes: a liquid crystal panel 11, a compensation system 12, a first polarizing film 131, a second polarizing film 132, a first pressure sensitive adhesive layer 141, a second pressure sensitive adhesive layer 142, and a first Triacetyl cellulose film 151 and a second triacetate film 152.
  • the liquid crystal panel 11 is a VA Cell (Vertical Alignment Cell). Further referring to FIG. 4, FIG. 4 is a schematic structural view of a liquid crystal panel according to a first embodiment of the present invention.
  • the liquid crystal panel 11 is provided with a liquid crystal layer 110 including a plurality of liquid crystal molecules 111.
  • the refractive index anisotropy of the liquid crystal layer 110 for incident light having a wavelength of 550 nm is ⁇
  • the thickness of the liquid crystal layer 110 is d
  • the liquid crystal optical path of the liquid crystal layer 110 The difference is An X d
  • the pretilt angle of the liquid crystal molecules 111 is ⁇ . Where 324.3 nm ⁇ ⁇ d ⁇ 342.8 nm, 85. ⁇ ⁇ ⁇ 90°.
  • the compensation system 12 includes a first biaxial compensation film 121 and a second biaxial compensation film 122.
  • the first biaxial compensation film 121 and the second biaxial compensation film 122 are respectively disposed on both sides of the liquid crystal panel 11.
  • the first polarizing film 131 and the first biaxial compensation film 121 are located on the same side of the liquid crystal panel 11, and, referring to FIG. 5, FIG. 5 is a slow axis and a first polarized light of the first biaxial compensation film in the first embodiment of the present invention.
  • the light absorption axis 133 of the first polarizing film 131 is 90 with the slow axis 123 of the first biaxial compensation film 121. .
  • the second polarizing film 132 and the second biaxial compensation film 122 are located on the other side of the liquid crystal panel 11, and referring to FIG. 6, FIG. 6 is a slow axis and a second polarized light of the second biaxial compensation film in the first embodiment of the present invention.
  • FIG. 6 Schematic diagram of the absorption axis of the membrane.
  • the light absorption axis 134 of the second polarizing film 132 is 90 with the slow axis 124 of the second biaxial compensation film 122.
  • the first polarizing film 131 and the second polarizing film 132 are preferably PVA (polyvinyl alcohol) thin films.
  • the first biaxial compensation film 121 is disposed between the first polarizing film 131 and the liquid crystal panel 11
  • the second biaxial compensation film 122 is disposed between the second polarizing film 132 and the liquid crystal panel 11
  • the first pressure sensitive adhesive layer 141 is disposed between the first biaxial compensation film 121 and the liquid crystal panel 11
  • the second pressure sensitive adhesive layer 142 is disposed between the second biaxial compensation film 122 and the liquid crystal panel 11 .
  • the pressure sensitive adhesive layers 141, 142 are used to connect the biaxial compensation films 121, 122 and the liquid crystal panel 11. By applying a slight pressure to the pressure sensitive adhesive layers 141, 142, a good fixing effect can be achieved in a short time.
  • the first triacetate film 151 is disposed on the surface of the first polarizing film 131 away from the first biaxial compensation film 121, and the second triacetate film 152 is disposed on the second polarizing film 132 away from the second biaxial compensation film 122. on the surface.
  • the cellulose triacetate film 151, 152 can be maintained
  • the shape of the polarizing films 131 and 132 protects the moisture loss of the polarizing films 131 and 132. It has high water resistance, low heat shrinkage, and high durability, ensuring that the polarizing films 131, 132 operate in the highest possible temperature range.
  • the in-plane compensation value of the first biaxial compensation film 121 is Rol
  • the thickness direction compensation value is Rth1
  • the in-plane compensation value Ro2 of the incident light of the second biaxial compensation film 122 the thickness direction The compensation value is Rth2.
  • FIG. 7 is a graph showing a trend of dark state light leakage with a compensation value when the liquid crystal optical path difference ( ⁇ ⁇ ) is 324.3 nm in the liquid crystal display device of the first embodiment of the present invention
  • FIG. 8 is the first aspect of the present invention.
  • the dark state light leakage changes with the compensation value.
  • the influence of the compensation values of the first biaxial compensation film 121 and the second biaxial compensation film 122 on the dark state light leakage is similar under different liquid crystal pretilt angles Pre (Pretiltangle). . That is to say, under different liquid crystal pretilt angles, the corresponding compensation value range is the same when the dark state light leakage is minimum.
  • the simulation can be performed with different compensation values under different pre-tilt angles of liquid crystal. It can be calculated that the dark state light leakage is less than 0.2nit in the range of 324.3 nm Anx d 342.8 nm, 85° ⁇ ⁇ ⁇ 90°.
  • the corresponding compensation value ranges of the first biaxial compensation film 121 and the second biaxial compensation film 122 are respectively:
  • the in-plane compensation values Rol and Ro2 of the first biaxial compensation film 121 and the second biaxial compensation film 122 and the thickness direction compensation values Rth1 and Rth2 are compensation values for incident light having a wavelength of 550 nm, when the compensation value is at In the above range, an optimum compensation effect can be obtained in the liquid crystal display device, and the minimum dark state light leakage can be achieved.
  • the first biaxial compensation film 121 and the second biaxial compensation film 122 adopt the same compensation film, that is, the in-plane compensation values Rol and Ro2 and the thickness direction compensation values Rth1 and Rth2 are designed to have the same compensation value. This makes it easier to separate the first biaxial compensation film 121 and the second biaxial compensation film 122.
  • the in-plane compensation values of the first biaxial compensation film 121 and the second biaxial compensation film 122 are the same as Rol and Ro2, and the thickness direction compensation values are the same as Rth1 and Rth2. A reasonable range of compensation values.
  • FIG. 9 is a graph showing a trend of dark light leakage with a compensation value when the liquid crystal optical path difference is 324.3 nm
  • FIG. 10 is a second embodiment of the present invention.
  • the dark state light leakage changes with the compensation value when the liquid crystal optical path difference is 342.8 nm.
  • FIG. 11 is a dark state light leakage distribution diagram compensated by the compensation system according to the embodiment of the present invention
  • FIG. 12 is a full view contrast distribution diagram compensated by the compensation system according to the embodiment of the present invention.
  • the setting conditions of FIG. 11 and FIG. 12 are as follows: the liquid crystal optical path difference ⁇ X d is 342.8 nm, the liquid crystal pretilt angle ⁇ is 89°, and the in-plane compensation values of the first biaxial compensation film 121 and the second biaxial compensation film 122 are obtained.
  • the in-plane compensation value and the thickness compensation value of the biaxial compensation film can be changed in various ways. For example, based on the constant refractive index N of the biaxial compensation film, the thickness d is changed to change the compensation value. Alternatively, based on the constant thickness d of the biaxial compensation film, the refractive index N is changed to change the compensation value. Of course, it is also possible to change the thickness d of the biaxial compensation film and the refractive index N simultaneously to change the compensation value.
  • the present invention further provides a compensation system for a liquid crystal panel as described above.
  • a person skilled in the art can completely make structural modifications according to the first embodiment of the present invention, for example, changing the positions of the first biaxial compensation film 121 and the second biaxial compensation film 122, but this is also within the protection scope of the present invention.
  • the present invention does not limit the position of the double-layer biaxial compensation film, and a satisfactory compensation effect can be achieved by satisfying the above-mentioned compensation value range.
  • the present invention can effectively reduce the dark state light leakage phenomenon of the liquid crystal panel by appropriately setting the compensation value of the double-layer dual-axis compensation film.

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

Abstract

一种用于液晶面板（11）的补偿系统及液晶显示装置。补偿系统包括用于设置于液晶面板（11）两侧的第一双轴补偿膜（121）和第二双轴补偿膜（122）。第一双轴补偿膜（121）针对波长为550nm的入射光的面内补偿值为Ro1，厚度方向补偿值为Rth1，第二双轴补偿膜（122）针对波长为550nm的入射光的面内补偿值Ro2，厚度方向补偿值为Rth2。其中：30.8nm≤Ro1≤91nm；70.4nm≤Rth1≤208nm；21nm≤Ro2≤93.8nm；Y1≤Rth2≤Y2；Y1=0.00424817×Rth12-1.9854256×Rth1+277.7；Y2=-0.003333×Rth12-0.033459×Rth1+234.2。通过合理设置双层双轴补偿膜（121、122）的补偿值，能够有效降低液晶面板（11）的暗态漏光现象。

Description

用于液晶面板的补偿系统及液晶显示装置
【技术领域】
本发明涉及液晶显示领域， 特别是涉及一种用于液晶面板的补偿系统及液 曰曰显示装置。
【背景技术】
随着科技的发展， 液晶显示装置已经成为目前最主流的显示装置。 然而， 随着液晶显示装置的观察角度的增大， 画面的对比度会不断降低， 画面的清晰 度也会下降。 这是液晶层中液晶分子的双折射率随观察角度变化发生改变的结 果。 若采用宽视角补偿膜进行补偿， 则可以有效降低暗态画面的漏光， 在一定 视角内能大幅度提高画面的对比度。补偿膜一般都为针对 VA显示模式，主要包 括单层双轴补偿膜或双层双轴补偿膜。针对不同的液晶光程差 An x d,达到最小 暗态漏光需要的补偿膜的补偿值也会不同。 若搭配不当， 则不仅液晶显示装置 在暗态下会发生大视角暗态漏光， 也会影响大视角的对比度和观看的清晰度。
参阅图 1与图 2,图 1是经现有双层双轴补偿膜补偿后的暗态漏光分布模拟 图， 图 2是经该双层双轴补偿膜补偿后的全视角对比度分布模拟图。 其中， 设 定液晶光程差 An X d为 342.8nm, 双层双轴补偿膜的面内补偿值 Ro均为 70nm, 双层双轴补偿膜的厚度方向补偿值 Rth均为 160nm。 由图 1与图 2可见， 在上 述条件下， 经该双层双轴补偿膜补偿后在方位角为 30。 -60。 、 120。 -150。 、 210。 -240。 以及 300。 -330。 等区域仍然存在严重漏光，因此这些视角的对比度 偏低。
因此， 需要提供一种用于液晶面板的补偿系统及液晶显示装置， 以解决上 述问题。 【发明内容】
本发明主要解决的技术问题是提供一种用于液晶面板的补偿系统及液晶显 示装置， 以有效降低液晶面板的暗态漏光现象。
为解决上述技术问题， 本发明采用的一个技术方案是： 提供一种液晶显示 装置， 该液晶显示装置包括：
液晶面板， 液晶面板设置有包括多个液晶分子的液晶层， 液晶层针对波长 为 550nm的入射光的折射率各向异性为 Δη, 液晶层的厚度为 d, 液晶分子的预 倾角为 Θ ;
第一双轴补偿膜和第二双轴补偿膜， 第一双轴补偿膜针对波长为 550nm的 入射光的面内补偿值为 Rol , 厚度方向补偿值为 Rthl , 第二双轴补偿膜针对波 长为 550nm的入射光的面内补偿值 Ro2 , 厚度方向补偿值为 Rth2, 其中：
324.3 nm < Δη X d < 342.8匪；
85。 θ < 90° ；
48.3 匪 < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152 nm;
其中， 液晶显示装置进一步包括用于设置于液晶面板两侧的第一偏光膜和 第二偏光膜， 第一偏光膜与第一双轴补偿膜位于液晶面板的一侧， 且第一偏光 膜的吸光轴与第一双轴补偿膜慢轴成 90° , 第二偏光膜与第二双轴补偿膜位于 液晶面板的另一侧， 且第二偏光膜的吸光轴与第二双轴补偿膜慢轴成 90。 ； 第一双轴补偿膜设置于第一偏光膜与液晶面板之间， 第二双轴补偿膜设置 于第二偏光膜与液晶面板之间。
其中， 第一偏光膜以及第二偏光膜为聚乙烯醇薄膜。
其中， 液晶显示装置进一步包括第一感压胶层以及第二感压胶层， 第一感 压胶层设置于第一双轴补偿膜与液晶面板之间， 第二感压胶设置于第二双轴补 偿膜与液晶面板之间。
其中， 液晶显示装置进一步包括第一三醋酸纤维素膜以及第二三醋酸纤维 素膜， 第一三醋酸纤维素膜设置于第一偏光膜远离第一双轴补偿膜的表面上， 第二三醋酸纤维素膜设置于第二偏光膜远离第二双轴补偿膜的表面上。
为解决上述技术问题， 本发明采用的另一个技术方案是： 提供一种用于液 晶面板的补偿系统， 该补偿系统包括用于设置于液晶面板两侧的第一双轴补偿 膜和第二双轴补偿膜， 第一双轴补偿膜针对波长为 550nm的入射光的面内补偿 值为 Rol, 厚度方向补偿值为 Rthl, 第二双轴补偿膜针对波长为 550nm的入射 光的面内补偿值 Ro2, 厚度方向补偿值为 Rth2, 其中：
30· 8匪 <Rol <91nm;
70.4nm <Rthl <208nm;
21nm< Ro2 <93.8nm;
YKRth2< Y2;
Yl=0.00424817 Rthl2-1.9854256 Rthl+277.7;
Y2=-0.003333 Rthl2-0.033459 Rthl+234.2。
其中，
48.3 nm < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152匪。
其中， 液晶面板的液晶光程差 Δη X d为： 324.3 nm < Δη d< 342.8nm。 为解决上述技术问题， 本发明采用的又一个技术方案是： 提供一种液晶显 示装置， 该液晶显示装置包括：
其中， 液晶面板设置有包括多个液晶分子的液晶层， 液晶层针对波长为
550nm的入射光的折射率各向异性为 Δη, 液晶层的厚度为 d, 液晶分子的预倾 角为 Θ ;
第一双轴补偿膜和第二双轴补偿膜， 第一双轴补偿膜针对波长为 550nm的 入射光的面内补偿值为 Rol, 厚度方向补偿值为 Rthl, 第二双轴补偿膜针对波 长为 550nm的入射光的面内补偿值 Ro2, 厚度方向补偿值为 Rth2, 其中：
324.3 nm < Δη X d< 342.8 nm; 85 θ < 90° ；
30.8nm < Rol < 91nm;
70.4nm < Rthl < 208nm;
21nm < Ro2 < 93.8nm;
YK Rth2 < Y2;
Yl=0.00424817 Rthl2-1.9854256 Rthl+277.7;
Y2=-0.003333 Rthl2-0.033459 Rthl+234.2
其中，
48.3 nm < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152
其中， 液晶显示装置进一步包括用于设置于液晶面板两侧的第一偏光膜和 第二偏光膜， 第一偏光膜与第一双轴补偿膜位于液晶面板的一侧， 且第一偏光 膜的吸光轴与第一双轴补偿膜慢轴成 90° , 第二偏光膜与第二双轴补偿膜位于 液晶面板的另一侧， 且第二偏光膜的吸光轴与第二双轴补偿膜慢轴成 90
其中， 第一偏光膜以及第二偏光膜为聚乙烯醇薄膜。
其中， 第一双轴补偿膜设置于第一偏光膜与液晶面板之间， 第二双轴补偿 膜设置于第二偏光膜与液晶面板之间。
其中， 液晶显示装置进一步包括第一感压胶层以及第二感压胶层， 第一感 压胶层设置于第一双轴补偿膜与液晶面板之间， 第二感压胶设置于第二双轴补 偿膜与液晶面板之间。
其中， 液晶显示装置进一步包括第一三醋酸纤维素膜以及第二三醋酸纤维 素膜， 第一三醋酸纤维素膜设置于第一偏光膜远离第一双轴补偿膜的表面上， 第二三醋酸纤维素膜设置于第二偏光膜远离第二双轴补偿膜的表面上。
本发明的有益效果是： 区别于现有技术的情况， 本发明通过合理设置双层 双轴补偿膜的补偿值， 能够有效降低液晶面板的暗态漏光现象， 有效的增加大 视角 （非水平， 垂直方位角的大视角） 的对比度和清晰度， 提升这些大视角的 可视视角范围。
【附图说明】
图 1是经现有双层双轴补偿膜补偿后的暗态漏光分布模拟图；
图 2是经该现有双层双轴补偿膜补偿后全视角对比度分布模拟图； 图 3是本发明第一实施例的液晶显示装置的结构示意图；
图 4是本发明第一实施例的液晶面板的结构示意图；
图 5是本发明第一实施例中第一双轴补偿膜的慢轴与第一偏光膜的吸光轴 的示意图；
图 6是本发明第一实施例中第二双轴补偿膜的慢轴与第二偏光膜的吸光轴 的示意图；
图 7是本发明第一实施例的液晶显示装置在液晶光程差（Anxd )为 324.3 nm 时暗态漏光随补偿值变化趋势图；
图 8是本发明第一实施例的液晶显示装置在液晶光程差（Anxd )为 342.8 nm 时暗态漏光随补偿值变化趋势图；
图 9是本发明的第二实施例的液晶显示装置在液晶光程差为 324.3 nm时暗 态漏光随补偿值变化趋势图；
图 10是本发明的第二实施例的液晶显示装置在液晶光程差为 342.8nm时暗 态漏光随补偿值变化趋势图；
图 11是经本发明实施例的补偿系统补偿后的暗态漏光分布图；
图 12是经本发明实施例的补偿系统补偿后的全视角对比度分布图。
【具体实施方式】
请参阅图 3 , 图 3是本发明第一实施例的液晶显示装置的结构示意图。 在本 实施例中， 液晶显示装置 1包括： 液晶面板 11、 补偿系统 12、 第一偏光膜 131、 第二偏光膜 132、 第一感压胶层 141、 第二感压胶层 142、 第一三醋酸纤维素膜 151以及第二三醋酸纤维素膜 152。
在本实施例中， 液晶面板 11为 VA Cell ( Vertical Alignment Cell, 垂直排列 液晶盒）。 进一步参阅图 4, 图 4是本发明第一实施例的液晶面板的结构示意图。 液晶面板 11设置有包括多个液晶分子 111的液晶层 110, 液晶层 110针对波长 为 550nm的入射光的折射率各向异性为 Δη,液晶层 110的厚度为 d,液晶层 110 的液晶光程差为 An X d, 液晶分子 111的预倾角为 Θ。 其中， 324.3 nm < Δη d < 342.8 nm, 85。 < Θ < 90° 。
补偿系统 12包括第一双轴补偿膜 121以及第二双轴补偿膜 122。 第一双轴 补偿膜 121与第二双轴补偿膜 122分别设置于液晶面板 11两侧。第一偏光膜 131 与第一双轴补偿膜 121位于液晶面板 11的同侧， 并且， 参阅图 5 , 图 5是本发 明第一实施例中第一双轴补偿膜的慢轴与第一偏光膜的吸光轴的示意图。 第一 偏光膜 131的吸光轴 133与第一双轴补偿膜 121的慢轴 123成 90。 。 第二偏光 膜 132与第二双轴补偿膜 122位于液晶面板 11的另一侧， 且参阅图 6, 图 6是 本发明第一实施例中第二双轴补偿膜的慢轴与第二偏光膜的吸光轴的示意图。 第二偏光膜 132的吸光轴 134与第二双轴补偿膜 122的慢轴 124成 90。 。 第一 偏光膜 131以及第二偏光膜 132优选为 PVA ( polyvinyl alcohol , 聚乙烯醇）薄 膜。
如图 3所示， 第一双轴补偿膜 121设置于第一偏光膜 131与液晶面板 11之 间， 第二双轴补偿膜 122设置于第二偏光膜 132与液晶面板 11之间。 第一感压 胶层 141设置于第一双轴补偿膜 121与液晶面板 11之间， 第二感压胶层 142设 置于第二双轴补偿膜 122与液晶面板 11之间。 感压胶层 141、 142用于连接双 轴补偿膜 121、 122和液晶面板 11。 对感压胶层 141、 142施加轻微的压力， 即 可在短时间内达到良好的固定效果。 其优点是能像流体般快速的润湿接触表面， 剥离时又像固体般的防止剥离。第一三醋酸纤维素膜 151设置于第一偏光膜 131 远离第一双轴补偿膜 121 的表面上， 第二三醋酸纤维素膜 152设置于第二偏光 膜 132远离第二双轴补偿膜 122的表面上。 三醋酸纤维素膜 151、 152能够保持 偏光膜 131、 132的形状， 保护偏光膜 131、 132的水分流失。 其具有高耐水性、 低热收缩性、 以及高耐久性， 保证偏光膜 131、 132在尽可能高的温度范围内工 作。
针对波长为 550nm的入射光时，第一双轴补偿膜 121的面内补偿值为 Rol, 厚度方向补偿值为 Rthl; 第二双轴补偿膜 122的入射光的面内补偿值 Ro2, 厚 度方向补偿值为 Rth2。
参阅图 7与图 8, 图 7是本发明第一实施例的液晶显示装置在液晶光程差 ( Δη ά )为 324.3 nm时暗态漏光随补偿值变化趋势图， 图 8是本发明第一实施 例的液晶显示装置在液晶光程差（Anxd)为 342.8 nm时暗态漏光随补偿值变化 趋势图。 由图 7和图 8可以看出， 在不同的液晶预倾角 Θ (Pretiltangle)下， 第 一双轴补偿膜 121和第二双轴补偿膜 122的补偿值对暗态漏光的影响趋势是类 似的。 即不同液晶预倾角下， 暗态漏光最小时对应的补偿值范围是一样的。
通过图 7与图 8, 在不同的液晶预倾角下搭配不同的补偿值进行模拟， 可计 算出在 324.3 nm Anx d 342.8 nm, 85° < θ < 90° 的范围内， 暗态漏光小于 0.2nit时第一双轴补偿膜 121和第二双轴补偿膜 122的对应补偿值范围分别为：
30· 8匪 <Rol <91nm;
70.4nm <Rthl <208nm;
21nm< Ro2 <93.8nm;
Yl Rth2 Y2。
其中：
Yl=0.00424817 Rthl2-1.9854256 Rthl+277.7;
Y2=-0.003333 Rthl2-0.033459 Rthl+234.2。
因此， 第一双轴补偿膜 121 以及第二双轴补偿膜 122的面内补偿值 Rol、 Ro2以及厚度方向补偿值 Rthl、Rth2均是针对波长为 550nm的入射光的补偿值， 当补偿值处于上述范围内时， 在液晶显示装置中能够得到最佳的补偿效果， 达 到最小的暗态漏光。 在工业化生产中， 一般第一双轴补偿膜 121与第二双轴补偿膜 122采用相 同的补偿膜， 即面内补偿值 Rol、 Ro2以及厚度方向补偿值 Rthl、 Rth2设计成 相同的补偿值， 由此可更加便捷， 不需再严格分出第一双轴补偿膜 121 与第二 双轴补偿膜 122。 因此， 在第二实施例中， 针对第一双轴补偿膜 121与第二双轴 补偿膜 122的面内补偿值为 Rol、 Ro2相同， 且厚度方向补偿值为 Rthl、 Rth2 相同的情况， 设计合理的补偿值范围。
参阅图 9与图 10, 图 9是本发明的第二实施例的液晶显示装置在液晶光程 差为 324.3 nm时暗态漏光随补偿值变化趋势图，图 10是本发明的第二实施例的 液晶显示装置在液晶光程差为 342.8 nm时暗态漏光随补偿值变化趋势图。
同样的， 通过图 9与图 10, 在不同的液晶预倾角下搭配不同的补偿值进行 模拟， 可计算出在 324.3 nm An x d 342.8 nm, 85。 < θ < 90° 的条件下， 当 面内补偿值为 Rol、 Ro2相同且厚度方向补偿值为 Rthl、 Rth2相同时， 各补偿 值的合理范围为：
48.3 匪 < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152匪。
参阅图 11与图 12, 图 11是经本发明实施例的补偿系统补偿后的暗态漏光 分布图， 图 12是经本发明实施例的补偿系统补偿后的全视角对比度分布图。 图 11与图 12的设定条件为：液晶光程差 Δη X d为 342.8nm,液晶预倾角 Θ为 89° , 第一双轴补偿膜 121和第二双轴补偿膜 122的面内补偿值 Rol=Ro2=56nm, 第 一双轴补偿膜 121和第二双轴补偿膜 122的厚度方向补偿值 Rthl=Rth2=128nm。
对比图 11与图 1 , 可以直接观察到， 经本发明实施例的补偿系统补偿后的 暗态漏光远远低于现有双层双轴补偿膜补偿后的暗态漏光。 对比图 12与图 2 , 可以直接观察到， 经本发明实施例的补偿系统补偿后的全视角对比度分布也优 于现有双层双轴补偿膜补偿后的全视角对比度分布。
本领域技术人员可以通过改变现有双轴补偿膜来获得满足上述补偿值范围 的双轴补偿膜。 具体而言， 双轴补偿膜的面内补偿值 Ro, 厚度方向补偿值 Rth, 折射率 N, 厚度 d满足如下公式： Ro = (Nx - Ny) * d
Rth = [(Nx + Ny) / 2 _ NzY d
通过此公式， 可通过多种方式改变双轴补偿膜的面内补偿值以及厚度补偿 值。 例如， 在双轴补偿膜折射率 N不变的基础上， 改变厚度 d来改变补偿值。 或者， 在双轴补偿膜厚度 d不变的基础上， 改变折射率 N来改变补偿值。 当然， 也可以同时改变双轴补偿膜的厚度 d与折射率 N来改变补偿值。 本发明进一步提供了一种上述的用于液晶面板的补偿系统。
本领域技术人员完全可以根据本发明第一实施例做结构上的修改， 例如调 换第一双轴补偿膜 121与第二双轴补偿膜 122的位置， 但此亦在本发明的保护 范围之内， 本发明并不限定双层双轴补偿膜的位置， 需要满足上述补偿值范围 均可实现较好的补偿效果。
区别于现有技术， 本发明通过合理设置双层双轴补偿膜的补偿值， 能够有 效降低液晶面板的暗态漏光现象。
以上仅为本发明的实施方式， 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或等效流程变换， 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

权利要求
1. 一种液晶显示装置， 其中， 所述液晶显示装置包括：
液晶面板， 所述液晶面板设置有包括多个液晶分子的液晶层， 所述液晶层 针对波长为 550nm的入射光的折射率各向异性为 Δη, 所述液晶层的厚度为 d, 所述液晶分子的预倾角为 Θ；
第一双轴补偿膜和第二双轴补偿膜， 分别设置于所述液晶面板的两侧， 所 述第一双轴补偿膜针对波长为 550nm的入射光的面内补偿值为 Rol , 厚度方向 补偿值为 Rthl , 所述第二双轴补偿膜针对所述波长为 550nm的入射光的面内补 偿值 Ro2, 厚度方向补偿值为 Rth2, 其中：
324.3 nm < Δη X d < 342.8匪；
85。 θ < 90° ；
48.3 匪 < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152 nm;
其中， 所述液晶显示装置进一步包括用于设置于所述液晶面板两侧的第一 偏光膜和第二偏光膜， 所述第一偏光膜与所述第一双轴补偿膜位于所述液晶面 板的一侧， 且所述第一偏光膜的吸光轴与所述第一双轴补偿膜的慢轴成 90° , 所述第二偏光膜与所述第二双轴补偿膜位于所述液晶面板的另一侧， 且所述第 二偏光膜的吸光轴与所述第二双轴补偿膜的慢轴成 90。 ；
所述第一双轴补偿膜设置于所述第一偏光膜与所述液晶面板之间， 所述第 二双轴补偿膜设置于所述第二偏光膜与所述液晶面板之间。
2. 根据权利要求 1所述的液晶显示装置， 其中， 所述第一偏光膜以及所述 第二偏光膜为聚乙烯醇薄膜。
3. 根据权利要求 2所述的液晶显示装置， 其中， 所述液晶显示装置进一步 包括第一感压胶层以及第二感压胶层， 所述第一感压胶层设置于所述第一双轴 补偿膜与所述液晶面板之间， 所述第二感压胶设置于所述第二双轴补偿膜与所 述液晶面板之间。
4. 根据权利要求 3所述的液晶显示装置， 其中， 所述液晶显示装置进一步 包括第一三醋酸纤维素膜以及第二三醋酸纤维素膜， 所述第一三醋酸纤维素膜 设置于所述第一偏光膜远离所述第一双轴补偿膜的表面上， 所述第二三醋酸纤 维素膜设置于所述第二偏光膜远离所述第二双轴补偿膜的表面上。
5. 一种用于液晶面板的补偿系统， 其中， 所述补偿系统包括用于设置于所 述液晶面板两侧的第一双轴补偿膜和第二双轴补偿膜， 所述第一双轴补偿膜针 对波长为 550nm的入射光的面内补偿值为 Rol, 厚度方向补偿值为 Rthl, 所述 第二双轴补偿膜针对所述波长为 550nm的入射光的面内补偿值 Ro2, 厚度方向 补偿值为 Rth2, 其中：
30· 8匪 <Rol <91nm;
70.4nm <Rthl<208nm;
21nm< Ro2<93.8nm;
YKRth2< Y2;
Yl=0.00424817 Rthl2-1.9854256 Rthl+277.7;
Y2=-0.003333 Rthl2-0.033459 Rthl+234.2。
6. 根据权利要求 5所述的补偿系统， 其中，
48.3匪 < Rol= Ro2 < 66.5匪；
110.4匪 < Rthl= Rth2 < 152匪。
7. 根据权利要求 5所述的补偿系统， 其中， 所述液晶面板的液晶光程差 Δη xd为： 324.3 nm Anx ( 342.8匪。
8. 一种液晶显示装置， 其中， 所述液晶显示装置包括：
液晶面板， 所述液晶面板设置有包括多个液晶分子的液晶层， 所述液晶层 针对波长为 550nm的入射光的折射率各向异性为 Δη, 所述液晶层的厚度为 d, 所述液晶分子的预倾角为 Θ；
第一双轴补偿膜和第二双轴补偿膜， 分别设置于所述液晶面板的两侧， 所 述第一双轴补偿膜针对波长为 550nm的入射光的面内补偿值为 Rol , 厚度方向 补偿值为 Rthl , 所述第二双轴补偿膜针对所述波长为 550nm的入射光的面内补 偿值 Ro2 , 厚度方向补偿值为 Rth2 , 其中：
324.3 nm < Δη X d < 342.8匪；
85。 θ < 90° ；
30· 8匪 < Rol < 91nm;
70.4nm < Rthl < 208nm;
21nm < Ro2 < 93.8nm;
YK Rth2 < Y2;
Yl=0.00424817 Rthl2-1.9854256 Rthl+277.7;
Y2=-0.003333 Rthl2-0.033459 Rthl+234.2。
9. 根据权利要求 8所述的液晶显示装置， 其中，
48.3 匪 < Rol= Ro2 < 66.5 nm;
110.4 nm < Rthl= Rth2 < 152匪。
10. 根据权利要求 8所述的液晶显示装置， 其中， 所述液晶显示装置进一步 包括用于设置于所述液晶面板两侧的第一偏光膜和第二偏光膜， 所述第一偏光 膜与所述第一双轴补偿膜位于所述液晶面板的一侧， 且所述第一偏光膜的吸光 轴与所述第一双轴补偿膜的慢轴成 90° , 所述第二偏光膜与所述第二双轴补偿 膜位于所述液晶面板的另一侧， 且所述第二偏光膜的吸光轴与所述第二双轴补 偿膜的慢轴成 90° 。
11. 根据权利要求 10所述的液晶显示装置， 其中， 所述第一偏光膜以及所 述第二偏光膜为聚乙烯醇薄膜。
12. 根据权利要求 10所述的液晶显示装置， 其中， 所述第一双轴补偿膜设 置于所述第一偏光膜与所述液晶面板之间， 所述第二双轴补偿膜设置于所述第 二偏光膜与所述液晶面板之间。
13. 根据权利要求 12所述的液晶显示装置， 其中， 所述液晶显示装置进一 步包括第一感压胶层以及第二感压胶层， 所述第一感压胶层设置于所述第一双 轴补偿膜与所述液晶面板之间， 所述第二感压胶设置于所述第二双轴补偿膜与 所述液晶面板之间。
14. 根据权利要求 13所述的液晶显示装置， 其中， 所述液晶显示装置进一 步包括第一三醋酸纤维素膜以及第二三醋酸纤维素膜， 所述第一三醋酸纤维素 膜设置于所述第一偏光膜远离所述第一双轴补偿膜的表面上， 所述第二三醋酸 纤维素膜设置于所述第二偏光膜远离所述第二双轴补偿膜的表面上。
PCT/CN2012/085663 2012-11-21 2012-11-30 用于液晶面板的补偿系统及液晶显示装置 Ceased WO2014079096A1 (zh)

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
KR102101794B1 (ko) * 2013-07-17 2020-04-20 삼성디스플레이 주식회사 액정 표시 장치
CN103869539A (zh) * 2014-04-04 2014-06-18 深圳市华星光电技术有限公司 用于液晶面板的双层双轴补偿架构及液晶显示装置
CN104536204A (zh) * 2014-12-25 2015-04-22 深圳市华星光电技术有限公司 液晶显示器
CN105676548B (zh) * 2016-04-18 2019-04-05 京东方科技集团股份有限公司 一种显示器液晶填充量测定的方法及装置
CN105717573B (zh) * 2016-05-03 2016-11-23 精电(河源)显示技术有限公司 补偿膜偏光片及液晶显示屏

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003023414A (ja) * 1999-05-21 2003-01-24 Fujitsu Ltd ディジタル加入者線伝送方法、伝送装置及び伝送システム
CN101300522A (zh) * 2005-11-10 2008-11-05 日东电工株式会社 液晶面板及液晶显示装置
CN101661190A (zh) * 2008-08-28 2010-03-03 富士胶片株式会社 液晶显示装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3299190B2 (ja) * 1998-07-15 2002-07-08 インターナショナル・ビジネス・マシーンズ・コーポレーション 液晶表示装置
JP2003121641A (ja) * 2001-10-10 2003-04-23 Nitto Denko Corp 積層位相差板、偏光部材及び液晶表示装置
JP2008083546A (ja) * 2006-09-28 2008-04-10 Stanley Electric Co Ltd 液晶表示装置
BRPI0822272A2 (pt) * 2008-02-07 2015-06-23 Sharp Kk Método para produzir dispositivo de display de cristal líquido, e dispositivo de display de cristal líquido
JP5508702B2 (ja) 2008-02-20 2014-06-04 富士フイルム株式会社 液晶表示装置
JP5237730B2 (ja) 2008-09-10 2013-07-17 富士フイルム株式会社 光学フィルム、偏光板、及びｖａモード液晶表示装置
JP5529672B2 (ja) 2009-11-30 2014-06-25 富士フイルム株式会社 液晶表示装置
CN101840104B (zh) * 2010-05-07 2012-03-21 河北工业大学 一种高对比度和快速响应的液晶光阀
CN102466920A (zh) * 2010-11-01 2012-05-23 瀚宇彩晶股份有限公司 液晶显示装置
CN102402064A (zh) * 2011-11-22 2012-04-04 深圳市华星光电技术有限公司 显示面板
CN102902105B (zh) 2012-11-06 2015-07-01 深圳市华星光电技术有限公司 用于液晶面板的补偿系统及液晶显示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003023414A (ja) * 1999-05-21 2003-01-24 Fujitsu Ltd ディジタル加入者線伝送方法、伝送装置及び伝送システム
CN101300522A (zh) * 2005-11-10 2008-11-05 日东电工株式会社 液晶面板及液晶显示装置
CN101661190A (zh) * 2008-08-28 2010-03-03 富士胶片株式会社 液晶显示装置

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