WO2016106901A1 - 液晶面板及液晶显示装置 - Google Patents

液晶面板及液晶显示装置 Download PDF

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Publication number
WO2016106901A1
WO2016106901A1 PCT/CN2015/071213 CN2015071213W WO2016106901A1 WO 2016106901 A1 WO2016106901 A1 WO 2016106901A1 CN 2015071213 W CN2015071213 W CN 2015071213W WO 2016106901 A1 WO2016106901 A1 WO 2016106901A1
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Prior art keywords
absorption axis
polarizer
liquid crystal
layer
sequence
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PCT/CN2015/071213
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English (en)
French (fr)
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唐岳军
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深圳市华星光电技术有限公司
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Priority to US14/431,740 priority Critical patent/US9696579B2/en
Publication of WO2016106901A1 publication Critical patent/WO2016106901A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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
    • G02F1/133357—Planarisation layers
    • 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
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/133538—Polarisers with spatial distribution of the polarisation direction
    • 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
    • G02F1/133548—Wire-grid polarisers
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]

Definitions

  • the present invention relates to the field of liquid crystal technology, and in particular, to a liquid crystal panel and a liquid crystal display device.
  • liquid crystal panels Due to the advantages of thin and light appearance, low power consumption, no radiation, high brightness and high contrast, the consumer market of liquid crystal panels has grown rapidly and the demand is increasing. More and more consumers are demanding products that use LCD panels, such as mobile phones, personal digital assistant displays, or large-sized computer screens and televisions, to provide a more perfect display. An important way to improve the display effect is to increase the viewing angle of the liquid crystal panel.
  • Embodiments of the present invention provide a liquid crystal panel with better contrast and a wide viewing angle range.
  • a liquid crystal panel comprising a glass cover plate, a first polarizer, a liquid crystal layer, a second polarizer, and a glass substrate, which are sequentially stacked, wherein the liquid crystal layer comprises a plurality of pixels, and each pixel is provided with a plurality of liquid crystal molecules.
  • the first polarizer is provided with a first absorption axis and a second absorption axis
  • the second polarizer is provided with a third absorption axis and a fourth absorption axis, a first absorption axis of the first polarizer and the
  • the third absorption axis of the second polarizer is orthogonal to the axial direction and constitutes a first orthogonal system
  • the second absorption axis of the second polarizer is orthogonal to the axial direction of the fourth absorption axis of the second polarizer
  • the angle between the first orthogonal system and the second orthogonal system is 45 degrees.
  • the first polarizer is provided with a plurality of alternately arranged first absorption axis sequences and second absorption axis sequences, and each of the first absorption axis sequences is provided with a plurality of the first rows arranged in a row.
  • An absorption axis, each of the second absorption axis sequences is provided with a plurality of the second absorption axes arranged in a row.
  • the first polarizer includes a first substrate, a first polarizer layer, and a first polarized layer a first intermediate flat layer, a second polarizing sub-layer, a first surface flat layer, the first absorption axis sequence is formed on the first polarizing sub-layer, and the second absorption axis sequence is formed in the second polarizing sub- The layer, the second absorption axis sequence and the first absorption axis sequence are alternately arranged along the plane of the first polarizer.
  • the second polarizer is provided with a plurality of alternately arranged third absorption axis sequences and a fourth absorption axis sequence, and each of the third absorption axis sequences is provided with a plurality of the third rows arranged in a row.
  • An absorption axis, each of the fourth absorption axis sequences is provided with a plurality of the fourth absorption axes arranged in a row.
  • the second polarizer comprises a second substrate, a third polarizer layer, a second intermediate flat layer, a fourth polarizer layer, and a second surface flat layer which are sequentially stacked, and the third absorption axis sequence is formed.
  • the fourth absorption axis sequence is formed on the fourth polarizing sub-layer, and the fourth absorption axis sequence and the third absorption axis sequence are sequentially alternated along the plane of the second polarizer Arrange.
  • first polarizer and the second polarizer adopt an organic polarizer.
  • first polarizer and the second polarizer are a polyvinyl alcohol film optical polarizer or a dichroic organic dye type polarizer.
  • first polarizer and the second polarizer adopt a metal wire grid polarizer.
  • first orthogonal system and the second orthogonal system respectively correspond to different pixel columns of the liquid crystal panel.
  • a liquid crystal display device wherein the liquid crystal display device is provided with a liquid crystal panel, the liquid crystal panel includes a glass cover plate, a first polarizer, a liquid crystal layer, a second polarizer, and a glass substrate, which are sequentially stacked.
  • the layer includes a plurality of pixels, each of which is provided with a plurality of liquid crystal molecules, the first polarizer is provided with a first absorption axis and a second absorption axis, and the second polarizer is provided with a third absorption axis and a fourth An absorption axis, a first absorption axis of the first polarizer is orthogonal to an axial direction of a third absorption axis of the second polarizer and constitutes a first orthogonal system, and a second absorption axis of the second polarizer An axial direction orthogonal to the fourth absorption axis of the second polarizer and constituting a second orthogonal system, the angle between the first orthogonal system and the second orthogonal system being 45 degrees.
  • the first polarizer is provided with a plurality of alternately arranged first absorption axis sequences and second absorption axis sequences, and each of the first absorption axis sequences is provided with a plurality of the first rows arranged in a row.
  • An absorption axis, each of the second absorption axis sequences is provided with a plurality of the second absorption axes arranged in a row.
  • the first polarizer comprises a first substrate, a first polarizer layer, a first intermediate flat layer, a second polarizer layer, and a first surface flat layer, which are sequentially stacked, and the first absorption axis sequence is formed.
  • the second absorption axis sequence is formed on the second polarizing sub-layer, and the second absorption axis sequence and the first absorption axis sequence are sequentially alternated along the plane of the first polarizer Arrange.
  • the second polarizer is provided with a plurality of alternately arranged third absorption axis sequences and a fourth absorption axis sequence, and each of the third absorption axis sequences is provided with a plurality of the third rows arranged in a row.
  • An absorption axis, each of the fourth absorption axis sequences is provided with a plurality of the fourth absorption axes arranged in a row.
  • the second polarizer comprises a second substrate, a third polarizer layer, a second intermediate flat layer, a fourth polarizer layer, and a second surface flat layer which are sequentially stacked, and the third absorption axis sequence is formed.
  • the fourth absorption axis sequence is formed on the fourth polarizing sub-layer, and the fourth absorption axis sequence and the third absorption axis sequence are sequentially alternated along the plane of the second polarizer Arrange.
  • the first absorption axis and the second absorption axis of the first polarizer are disposed, and the third absorption axis and the fourth absorption axis of the second polarizer are disposed to constitute the first orthogonal system and Second orthogonal system.
  • the contrast and the viewing angle range of the liquid crystal panel are improved by the first orthogonal system and the second orthogonal system, thereby improving the visual perception of the liquid crystal panel.
  • FIG. 1 is a schematic structural view of a liquid crystal panel according to a preferred embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a first polarizer of the liquid crystal panel of FIG. 1;
  • FIG. 3 is a schematic structural view of a second polarizer of the liquid crystal panel of FIG. 1;
  • FIG. 4 is a cross-sectional view showing a first polarizer and a second polarizer of the liquid crystal panel of FIG. 1;
  • FIG. 5 is a schematic diagram of a pixel structure when a liquid crystal panel according to a preferred embodiment of the present invention adopts an IPS mode
  • FIG. 6 is a schematic view of a main pixel of a liquid crystal panel according to a preferred embodiment of the present invention in an IPS mode;
  • FIG. 7 is a schematic view of a sub-pixel of a liquid crystal panel in an IPS mode according to a preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a pixel structure when a liquid crystal panel according to a preferred embodiment of the present invention adopts a VA mode.
  • a preferred embodiment of the present invention provides a liquid crystal panel 10 including a glass cover 11 , a first polarizer 13 , a liquid crystal layer 15 , a second polarizer 17 , and a glass substrate 19 which are sequentially stacked.
  • the liquid crystal layer 15 is disposed between the first polarizer 13 and the second polarizer 17, and the liquid crystal layer 15 includes a plurality of pixels 150, and each of the pixels 150 is provided with a plurality of liquid crystal molecules.
  • the first polarizer 13 is provided with a plurality of first absorption axis sequences 1320 and a second absorption axis sequence 1340 which are alternately arranged.
  • Each of the first absorption axis sequences 1320 includes a plurality of first absorption axes 1321 arranged side by side in a row.
  • Each second absorption axis sequence 1340 includes a second absorption axis 1341 arranged in a row.
  • the second polarizer 17 is provided with a plurality of alternately arranged third absorption axis sequences 1720 and fourth absorption axis sequences 1740.
  • Each of the third absorption axis sequences 1720 includes a plurality of third absorption axes 1721 arranged side by side in a row.
  • Each fourth absorption axis sequence 1740 includes a fourth absorption axis 1741 arranged in a row.
  • the first absorption axis 1321 of the first polarizer 13 is orthogonal to the axial direction of the third absorption axis 1721 of the second polarizer 17, and constitutes a first orthogonal system.
  • the second absorption axis 1341 of the first polarizer 17 is orthogonal to the axial direction of the fourth absorption axis 1741 of the second polarizer 17, and constitutes a second orthogonal system.
  • An angle between the first orthogonal system and the second orthogonal system is 45 degrees.
  • the first polarizer 13 and the second polarizer 17 may be organic polarizers such as a polyvinyl alcohol film optical polarizer, a dichroic organic dye type polarizer, or the like.
  • the first polarizer 13 and the second polarizer 17 may also be metal wire grid polarizers.
  • the first polarizer 13 when the first polarizer 13 is an organic polarizer, the first polarizer 13 includes a first substrate 131 and a first polarizer layer 132 which are sequentially stacked. , The first intermediate flat layer 133, the second polarizing sub-layer 134, and the first surface flat layer 135.
  • the first polarizing sub-layer 132 is provided with a first absorption axis sequence 1320
  • the second polarization sub-layer 134 is provided with a second absorption axis sequence 1340.
  • the second absorption axis sequence 1340 and the first absorption axis sequence 1320 are alternately arranged in sequence along the plane of the first polarizer 13.
  • the manufacturing process includes the following steps:
  • the first substrate 131 may be a glass substrate
  • the first polarizing sub-layer 132 is provided with a plurality of columns of first absorption axis sequences 1320; the photoresist may be coated and exposed during the etching process
  • the first absorption axis sequence 1320 is formed on the first polarizing sub-layer 132.
  • the projection of the second absorption axis sequence 1340 of any one of the second polarization sub-layers 134 on the first substrate 131 is located in the adjacent two columns of the first polarization sub-layer 132, and the first absorption axis sequence 1320 is in the first Between the projections of a substrate 131, the second absorption axis sequence 1340 and the first absorption axis sequence 1320 are alternately arranged in sequence along the plane of the first polarizer 13.
  • a first surface flat layer 135 is coated on the surface of the second polarizing sub-layer 134.
  • the manufacturing process is the same as that of the first polarizer 13.
  • the second polarizer 17 includes a second substrate 171, a third polarizer layer 172, a second intermediate flat layer 173, a fourth polarizer layer 174, and a second surface flat layer 175 which are sequentially stacked.
  • the third polarizing sub-layer 172 is provided with a third absorption axis sequence 1720
  • the fourth polarization sub-layer 174 is provided with a fourth absorption axis sequence 1740.
  • the fourth absorption axis sequence 1740 and the third absorption axis sequence 1720 are alternately arranged in sequence along the plane of the first polarizer 13.
  • the first polarizer 13 and the second polarizer 17 may also be a metal wire grid polarizer.
  • the liquid crystal panel 10 of the present invention may employ an IPS mode, a VA mode or an FFS mode, a TN mode, or the like.
  • the first orthogonal system and the second orthogonal system respectively correspond to different pixel columns of the liquid crystal panel 10.
  • the liquid crystal layer 15 of the liquid crystal panel 10 includes a plurality of pixels 150, and the pixels 150 include main pixels. 1511 and sub-pixel 1521.
  • the pixel 150 is divided into a main pixel column (not shown) and a sub-pixel column (not shown) which are alternately arranged.
  • the main pixel column includes a plurality of main pixels 1511, and the sub-pixel columns include a plurality of sub-pixels 1521.
  • An angle between the initial azimuth angle between the liquid crystal in the main pixel 1511 and the liquid crystal in the sub-pixel 1521 is 45 degrees.
  • the main pixel 1511 in the main pixel column corresponds to a first orthogonal system setting
  • the sub-pixel 1521 in the sub-pixel column corresponds to a second orthogonal system setting.
  • the electrode angle ⁇ of the main pixel 1511 is 7 degrees, and the electrode angle ⁇ of the sub-pixel 1521 is 52 degrees or 38 degrees. Thereby, the angle between the initial azimuth angle between the liquid crystal in the main pixel 1511 and the liquid crystal in the sub-pixel 1521 is 45 degrees.
  • the main pixel 1511 and the sub-pixel 1521 are controlled by different gate lines.
  • the optimal viewing angle is as shown in FIG. 6 for the azimuth angle of 0 degrees and 90 degrees.
  • the optimal viewing angle when the sub-pixel 1521 is operating is the azimuth angle of 45 degrees and 135 degrees as shown in FIG.
  • the main pixel 1511 and the sub-pixel 1521 are switched to work, thereby achieving optimal viewing angle switching.
  • the liquid crystal layer 15 of the liquid crystal panel 10 when the liquid crystal panel 10 adopts a VA (Vertical Alignment) mode, the liquid crystal layer 15 of the liquid crystal panel 10 includes odd-numbered pixel columns and even-numbered pixel columns alternately arranged.
  • the odd pixel column includes a plurality of odd column pixels 1531, and the even pixel columns include a plurality of even column pixels 1541.
  • An angle between the initial azimuth angle between the liquid crystal in the odd column pixel 1531 and the liquid crystal of the even column pixel 1541 is 45 degrees.
  • the odd column pixels 1531 of the odd pixel columns are corresponding to the first orthogonal system, and the even column pixels 1541 of the even pixel columns are corresponding to the second orthogonal system.
  • the optimal viewing angle when the odd-numbered column pixels 1531 of the odd-numbered pixel columns operate is the azimuth angle of 0 degrees and 90 degrees.
  • the optimal viewing angle when the even-numbered column pixels 1541 of the even-numbered pixel columns operate is the azimuth angle of 45 degrees and 135 degrees.
  • the operation is switched by the odd-numbered column pixels 1531 and the even-numbered columns of pixels 1541, thereby achieving optimal viewing angle switching.
  • the tilting direction of the liquid crystal molecules in the odd column pixel 1531 and the even column pixel 1541 is matched with the corresponding first orthogonal system or the second orthogonal system.
  • the odd column of pixels The angle between the tilting direction of the liquid crystal molecules in 1531 and the first absorption axis 1321 or the second absorption axis 1341 in the first orthogonal system is 45 degrees.
  • An angle between a tilting direction of the liquid crystal molecules in the even-numbered column pixel 1541 and a third absorption axis 1721 or a fourth absorption axis 1741 in the second orthogonal system is 45 degrees.
  • the liquid crystal panel 10 of the present invention can enhance the squint large viewing angle CR (Contrast Ratio) during use.
  • IPS In-Plane Switching
  • the main pixel 1511 and the sub-pixel 1521 operate simultaneously, and the first orthogonal system and the second orthogonal system also operate simultaneously.
  • VA vertical alignment
  • the odd column pixels 1531 and the even column pixels 1541 operate simultaneously, and the first orthogonal system and the second orthogonal system also operate simultaneously. Only 1/2 of the light leakage is generated in the azimuth angle of 45 degrees and 135 degrees, and the phase contrast improves the contrast of the large viewing angle while retaining the high CR of the azimuth angle of 0 and 90 degrees.

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

Abstract

一种液晶显示装置和一种液晶面板（10），该液晶面板（10）包括依次层叠设置的玻璃盖板（11）、第一偏光片（13）、液晶层（15）、第二偏光片（17）、玻璃底板（19），所述液晶层（15）包括多个像素（150），每个像素（150）均设有多个液晶分子，所述第一偏光片（13）设有第一吸收轴（1321）与第二吸收轴（1341），所述第二偏光片（17）设有第三吸收轴（1721）与第四吸收轴（1741），所述第一偏光片（13）的第一吸收轴（1321）与所述第二偏光片（17）的第三吸收轴（1721）的轴向正交并构成第一正交***，所述第一偏光片（13）的第二吸收轴（1341）与所述第二偏光片（17）的第四吸收轴（1741）的轴向正交并构成第二正交***，所述第一正交***与所述第二正交***之间的夹角为45度。该液晶面板（10）的对比度较佳，视角范围较广。

Description

液晶面板及液晶显示装置
本发明要求2014年12月31日递交的发明名称为“液晶面板”，申请号201410854152.8的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶技术领域，尤其涉及一种液晶面板及液晶显示装置。
背景技术
由于外型轻薄、低压功耗低、无辐射、高亮度、高对比度等优点，液晶面板的消费市场成长快速，需求量也越来越大。越来越多的消费者要求应用液晶面板的产品，例如移动电话、个人数字助理的显示屏、或大尺寸的计算机屏幕和电视等，能呈现出更完美的显示效果。提升显示效果的一个重要方式即为提高液晶面板的视角。
发明内容
本发明实施例提供一种对比度较佳，视角范围较广的液晶面板。
一种液晶面板，包括依次层叠设置的玻璃盖板、第一偏光片、液晶层、第二偏光片、玻璃底板，所述液晶层包括多个像素，每个像素均设有多个液晶分子，所述第一偏光片设有第一吸收轴与第二吸收轴，所述第二偏光片设有第三吸收轴与第四吸收轴，所述第一偏光片的第一吸收轴与所述第二偏光片的第三吸收轴的轴向正交并构成第一正交***，所述第二偏光片的第二吸收轴与所述第二偏光片的第四吸收轴的轴向正交并构成第二正交***，所述第一正交***与所述第二正交***之间的夹角为45度。
进一步的，所述第一偏光片设有多个交替排布的第一吸收轴序列与第二吸收轴序列，每个第一吸收轴序列中设有多个排布为一列的所述第一吸收轴，每个第二吸收轴序列中设有多个排布为一列的所述第二吸收轴。
进一步的，所述第一偏光片包括依次层叠设置的第一基板、第一偏光子层、 第一中间平坦层、第二偏光子层、第一表面平坦层，所述第一吸收轴序列形成于所述第一偏光子层，所述第二吸收轴序列形成于所述第二偏光子层，所述第二吸收轴序列与第一吸收轴序列沿所述第一偏光片所在平面依次交替排布。
进一步的，所述第二偏光片设有多个交替排布的第三吸收轴序列与第四吸收轴序列，每个第三吸收轴序列中设有多个排布为一列的所述第三吸收轴，每个第四吸收轴序列中设有多个排布为一列的所述第四吸收轴。
进一步的，所述第二偏光片包括依次层叠设置的第二基板、第三偏光子层、第二中间平坦层、第四偏光子层、第二表面平坦层，所述第三吸收轴序列形成于所述第三偏光子层，所述第四吸收轴序列形成于所述第四偏光子层，所述第四吸收轴序列与第三吸收轴序列沿所述第二偏光片所在平面依次交替排布。
进一步的，所述第一偏光片与第二偏光片采用有机偏光片。
进一步的，所述第一偏光片与第二偏光片采用聚乙烯醇薄膜光学偏振片或二色性有机染料型偏振片。
进一步的，所述第一偏光片与第二偏光片采用金属线栅偏光片。
进一步的，所述第一正交***与所述第二正交***分别对应所述液晶面板的不同像素列设置。
一种液晶显示装置，其中，所述液晶显示装置设有液晶面板，所述液晶面板包括依次层叠设置的玻璃盖板、第一偏光片、液晶层、第二偏光片、玻璃底板，所述液晶层包括多个像素，每个像素均设有多个液晶分子，所述第一偏光片设有第一吸收轴与第二吸收轴，所述第二偏光片设有第三吸收轴与第四吸收轴，所述第一偏光片的第一吸收轴与所述第二偏光片的第三吸收轴的轴向正交并构成第一正交***，所述第二偏光片的第二吸收轴与所述第二偏光片的第四吸收轴的轴向正交并构成第二正交***，所述第一正交***与所述第二正交***之间的夹角为45度。
进一步的，所述第一偏光片设有多个交替排布的第一吸收轴序列与第二吸收轴序列，每个第一吸收轴序列中设有多个排布为一列的所述第一吸收轴，每个第二吸收轴序列中设有多个排布为一列的所述第二吸收轴。
进一步的，所述第一偏光片包括依次层叠设置的第一基板、第一偏光子层、第一中间平坦层、第二偏光子层、第一表面平坦层，所述第一吸收轴序列形成 于所述第一偏光子层，所述第二吸收轴序列形成于所述第二偏光子层，所述第二吸收轴序列与第一吸收轴序列沿所述第一偏光片所在平面依次交替排布。
进一步的，所述第二偏光片设有多个交替排布的第三吸收轴序列与第四吸收轴序列，每个第三吸收轴序列中设有多个排布为一列的所述第三吸收轴，每个第四吸收轴序列中设有多个排布为一列的所述第四吸收轴。
进一步的，所述第二偏光片包括依次层叠设置的第二基板、第三偏光子层、第二中间平坦层、第四偏光子层、第二表面平坦层，所述第三吸收轴序列形成于所述第三偏光子层，所述第四吸收轴序列形成于所述第四偏光子层，所述第四吸收轴序列与第三吸收轴序列沿所述第二偏光片所在平面依次交替排布。
本发明的液晶面板及液晶显示装置通过设置第一偏光片的第一吸收轴、第二吸收轴，设置第二偏光片的第三吸收轴、第四吸收轴，从而构成第一正交***与第二正交***。通过第一正交***与第二正交***，提升液晶面板的对比度与视角范围，从而提升所述液晶面板的视觉观感。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明较佳实施方式提供的一种液晶面板的结构示意图；
图2是图1的液晶面板的第一偏光片的结构示意图；
图3是图1的液晶面板的第二偏光片的结构示意图；
图4是图1的液晶面板的第一偏光片与第二偏光片的剖面示意图；
图5是本发明较佳实施方式提供的液晶面板采用IPS模式时的像素构成示意图；
图6是本发明较佳实施方式提供的液晶面板采用IPS模式时主像素的视角示意图；
图7是本发明较佳实施方式提供的液晶面板采用IPS模式时次像素的视角示意图；
图8是本发明较佳实施方式提供的液晶面板采用VA模式时的像素构成示意图。
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，所描述的实施例是本发明一部分实施例，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。
本发明较佳实施方式提供一种液晶面板10，包括依次层叠设置的玻璃盖板11、第一偏光片13、液晶层15、第二偏光片17、玻璃底板19。所述液晶层15设置于所述第一偏光片13与第二偏光片17之间，所述液晶层15包括多个像素150，每个像素150均设有多个液晶分子。
如图2所示，所述第一偏光片13设有多个交替排布的第一吸收轴序列1320与第二吸收轴序列1340。每个第一吸收轴序列1320中包括多个并列排布为一列的第一吸收轴1321。每个第二吸收轴序列1340中包括排布为一列的第二吸收轴1341。
如图3所示，所述第二偏光片17设有多个交替排布的第三吸收轴序列1720与第四吸收轴序列1740。每个第三吸收轴序列1720中包括多个并列排布为一列的第三吸收轴1721。每个第四吸收轴序列1740中包括排布为一列的第四吸收轴1741。
所述第一偏光片13的第一吸收轴1321与所述第二偏光片17的第三吸收轴1721的轴向正交并构成第一正交***。所述第一偏光片17的第二吸收轴1341与所述第二偏光片17的第四吸收轴1741的轴向正交并构成第二正交***。所述第一正交***与所述第二正交***之间的夹角为45度。
所述第一偏光片13与第二偏光片17可采用有机偏光片，如聚乙烯醇薄膜光学偏振片、二色性有机染料型偏振片等。所述第一偏光片13与第二偏光片17也可采用金属线栅偏光片。
如图4所示，以第一偏光片13为例，当所述第一偏光片13采用有机偏光片时，第一偏光片13包括依次层叠设置的第一基板131、第一偏光子层132、 第一中间平坦层133、第二偏光子层134、第一表面平坦层135。所述第一偏光子层132设有第一吸收轴序列1320，所述第二偏光子层134设有第二吸收轴序列1340。所述第二吸收轴序列1340与第一吸收轴序列1320沿所述第一偏光片13所在平面依次交替排布。
其制造过程包括以下步骤：
于第一基板131上涂布偏光子层，所述第一基板131可采用玻璃基板；
蚀刻所述偏光子层以形成第一偏光子层132，所述第一偏光子层132设有多列间隔设置的第一吸收轴序列1320；所述蚀刻过程中可涂覆光阻并进行曝光显影，从而在第一偏光子层132上形成多列间隔设置的第一吸收轴序列1320，其实现过程为现有技术，在此不再赘述。
于所述第一偏光子层132表面涂布第一中间平坦层133；
于第一中间平坦层133表面涂布偏光子层，并蚀刻涂布于第一中间平坦层133表面的偏光子层，从而形成所述第二偏光子层134，所述第二偏光子层134设有多列第二吸收轴序列1340。所述第二偏光子层134的任一列第二吸收轴序列1340于所述第一基板131的投影位于所述第一偏光子层132的相邻两列第一吸收轴序列1320于所述第一基板131的投影之间，从而使所述第二吸收轴序列1340与第一吸收轴序列1320沿所述第一偏光片13所在平面依次交替排布。
于所述第二偏光子层134表面涂布第一表面平坦层135。
同样的，当所述第二偏光片17采用有机偏光片时，其制造过程与第一偏光片13的制造方法相同。
所述第二偏光片17包括依次层叠设置的第二基板171、第三偏光子层172、第二中间平坦层173、第四偏光子层174、第二表面平坦层175。所述第三偏光子层172设有第三吸收轴序列1720，所述第四偏光子层174设有第四吸收轴序列1740。所述第四吸收轴序列1740与第三吸收轴序列1720沿所述第一偏光片13所在平面依次交替排布。
在本发明的另一实施例中，所述第一偏光片13与第二偏光片17还可采用金属线栅偏光片。
本发明的液晶面板10可采用IPS模式、VA模式或FFS模式、TN模式等。 所述第一正交***与所述第二正交***分别对应所述液晶面板10的不同像素列设置。
例如，当所述液晶面板10采用IPS(In-Plane Switching，平面转换)模式时，如图5所示，所述液晶面板10的液晶层15包括多个像素150，所述像素150包括主像素1511与次像素1521。
进一步的，所述像素150分为交替排列的主像素列(图未示)与次像素列(图未示)。所述主像素列包括多个主像素1511，所述次像素列包括多个次像素1521。所述主像素1511中的液晶与次像素1521中的液晶之间的初始方位角之间的夹角为45度。所述主像素列中的主像素1511对应第一正交***设置，所述次像素列中的次像素1521对应第二正交***设置。
使用时，主像素1511的电极角度α为7度，次像素1521的电极角度β为52度或者38度。从而使所述主像素1511中的液晶与次像素1521中的液晶之间的初始方位角之间的夹角为45度。所述主像素1511与次像素1521采用不同的gate线控制，当主像素1511工作时，其最佳视角如图6为方位角0度、90度方向。当次像素1521工作时最佳视角为如图7所示的方位角45度、135度方向。通过主像素1511与次像素1521切换工作，从而对实现最佳视角切换。
进一步的，如图8所示，当所述液晶面板10采用VA(vertical alignment，垂直取向)模式时，所述液晶面板10的液晶层15包括交替排列的奇数像素列与偶数像素列。奇数像素列包括多个奇数列像素1531，所述偶数像素列包括多个偶数列像素1541。所述奇数列像素1531中的液晶与偶数列像素1541的液晶之间的初始方位角之间的夹角为45度。
所述奇数像素列的奇数列像素1531对应第一正交***设置，所述偶数像素列中的偶数列像素1541对应第二正交***设置。
所述奇数像素列的奇数列像素1531工作时的最佳视角为方位角0度、90度方向。所述偶数像素列的偶数列像素1541工作时的最佳视角为方位角45度、135度方向。通过奇数列像素1531与偶数列像素1541切换工作，从而对实现最佳视角切换。
进一步的，所述奇数列像素1531与偶数列像素1541中的液晶分子的倾倒方向与相应的第一正交***或第二正交***相匹配。例如，所述奇数列像素 1531中的液晶分子的倾倒方向与所述第一正交***中的第一吸收轴1321或第二吸收轴1341之间的夹角为45度。
所述偶数列像素1541中的液晶分子的倾倒方向与所述第二正交***中的第三吸收轴1721或第四吸收轴1741之间的夹角为45度。
本发明的液晶面板10可提升使用时的斜视大视角CR(Contrast Ratio，对比度)。当所述液晶面板10采用IPS(In-Plane Switching，平面转换)模式时，主像素1511与次像素1521同时工作，而所述第一正交***及第二正交***也同时工作。当所述液晶面板10采用VA(vertical alignment，垂直取向)模式时，所述奇数列像素1531与偶数列像素1541同时工作，而所述第一正交***及第二正交***也同时工作。在方位角45度、135度方向只产生1/2的漏光，变相的提高了大视角的对比度，同时一定程度上保留了方位角0、90度大视角的高CR。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (14)

  1. 一种液晶面板，其中，包括依次层叠设置的玻璃盖板、第一偏光片、液晶层、第二偏光片、玻璃底板，所述液晶层包括多个像素，每个像素均设有多个液晶分子，所述第一偏光片设有第一吸收轴与第二吸收轴，所述第二偏光片设有第三吸收轴与第四吸收轴，所述第一偏光片的第一吸收轴与所述第二偏光片的第三吸收轴的轴向正交并构成第一正交***，所述第二偏光片的第二吸收轴与所述第二偏光片的第四吸收轴的轴向正交并构成第二正交***，所述第一正交***与所述第二正交***之间的夹角为45度。
  2. 如权利要求1所述的液晶面板，其中，所述第一偏光片设有多个交替排布的第一吸收轴序列与第二吸收轴序列，每个第一吸收轴序列中设有多个排布为一列的所述第一吸收轴，每个第二吸收轴序列中设有多个排布为一列的所述第二吸收轴。
  3. 如权利要求2所述的液晶面板，其中，所述第一偏光片包括依次层叠设置的第一基板、第一偏光子层、第一中间平坦层、第二偏光子层、第一表面平坦层，所述第一吸收轴序列形成于所述第一偏光子层，所述第二吸收轴序列形成于所述第二偏光子层，所述第二吸收轴序列与第一吸收轴序列沿所述第一偏光片所在平面依次交替排布。
  4. 如权利要求1所述的液晶面板，其中，所述第二偏光片设有多个交替排布的第三吸收轴序列与第四吸收轴序列，每个第三吸收轴序列中设有多个排布为一列的所述第三吸收轴，每个第四吸收轴序列中设有多个排布为一列的所述第四吸收轴。
  5. 如权利要求4所述的液晶面板，其中，所述第二偏光片包括依次层叠设置的第二基板、第三偏光子层、第二中间平坦层、第四偏光子层、第二表面平坦层，所述第三吸收轴序列形成于所述第三偏光子层，所述第四吸收轴序列形成于所述第四偏光子层，所述第四吸收轴序列与第三吸收轴序列沿所述第二偏光片所在平面依次交替排布。
  6. 如权利要求1所述的液晶面板，其中，所述第一偏光片与第二偏光片采用有机偏光片。
  7. 如权利要求6所述的液晶面板，其中，所述第一偏光片与第二偏光片采用聚乙烯醇薄膜光学偏振片或二色性有机染料型偏振片。
  8. 如权利要求1所述的液晶面板，其中，所述第一偏光片与第二偏光片采用金属线栅偏光片。
  9. 如权利要求1所述的液晶面板，其中，所述第一正交***与所述第二正交***分别对应所述液晶面板的不同像素列设置。
  10. 一种液晶显示装置，其中，所述液晶显示装置设有液晶面板，所述液晶面板包括依次层叠设置的玻璃盖板、第一偏光片、液晶层、第二偏光片、玻璃底板，所述液晶层包括多个像素，每个像素均设有多个液晶分子，所述第一偏光片设有第一吸收轴与第二吸收轴，所述第二偏光片设有第三吸收轴与第四吸收轴，所述第一偏光片的第一吸收轴与所述第二偏光片的第三吸收轴的轴向正交并构成第一正交***，所述第二偏光片的第二吸收轴与所述第二偏光片的第四吸收轴的轴向正交并构成第二正交***，所述第一正交***与所述第二正交***之间的夹角为45度。
  11. 如权利要求10所述的液晶显示装置，其中，所述第一偏光片设有多个交替排布的第一吸收轴序列与第二吸收轴序列，每个第一吸收轴序列中设有多个排布为一列的所述第一吸收轴，每个第二吸收轴序列中设有多个排布为一列的所述第二吸收轴。
  12. 如权利要求11所述的液晶显示装置，其中，所述第一偏光片包括依次层叠设置的第一基板、第一偏光子层、第一中间平坦层、第二偏光子层、第一表面平坦层，所述第一吸收轴序列形成于所述第一偏光子层，所述第二吸收轴序列形成于所述第二偏光子层，所述第二吸收轴序列与第一吸收轴序列沿所述第一偏光片所在平面依次交替排布。
  13. 如权利要求10所述的液晶显示装置，其中，所述第二偏光片设有多个交替排布的第三吸收轴序列与第四吸收轴序列，每个第三吸收轴序列中设有多个排布为一列的所述第三吸收轴，每个第四吸收轴序列中设有多个排布为一列的所述第四吸收轴。
  14. 如权利要求13所述的液晶显示装置，其中，所述第二偏光片包括依次层叠设置的第二基板、第三偏光子层、第二中间平坦层、第四偏光子层、第 二表面平坦层，所述第三吸收轴序列形成于所述第三偏光子层，所述第四吸收轴序列形成于所述第四偏光子层，所述第四吸收轴序列与第三吸收轴序列沿所述第二偏光片所在平面依次交替排布。
PCT/CN2015/071213 2014-12-31 2015-01-21 液晶面板及液晶显示装置 WO2016106901A1 (zh)

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