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WO2019148919A1 - Structure de pixel, panneau d'affichage et dispositif d'affichage - Google Patents

Structure de pixel, panneau d'affichage et dispositif d'affichage Download PDF

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Publication number
WO2019148919A1
WO2019148919A1 PCT/CN2018/114178 CN2018114178W WO2019148919A1 WO 2019148919 A1 WO2019148919 A1 WO 2019148919A1 CN 2018114178 W CN2018114178 W CN 2018114178W WO 2019148919 A1 WO2019148919 A1 WO 2019148919A1
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Prior art keywords
strip
area
pixel
region
electrode
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Ceased
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PCT/CN2018/114178
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English (en)
Chinese (zh)
Inventor
何怀亮
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HKC Co Ltd
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HKC Co Ltd
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Filing date
Publication date
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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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment 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
    • G02F1/1343—Electrodes

Definitions

  • the present application relates to the field of liquid crystal display technologies, and in particular, to a pixel structure, a display panel, and a display device.
  • the market's performance requirements for liquid crystal displays are toward high contrast ratio, no gray scale inversion, little color shift, high luminance, high color richness, and high color.
  • Features such as saturation, fast response and wide viewing angle.
  • Techniques capable of achieving wide viewing angle requirements include, for example, twisted nematic liquid crystal (TN) plus wide viewing film, in-plane switching (IPS) liquid crystal display, margin field switching (fringe field) Switching) Liquid crystal display and multi-domain vertical alignment (MVA) thin film transistor liquid crystal display.
  • the alignment protrusion or the slit disposed on the color filter substrate or the thin film transistor array substrate can cause the liquid crystal molecules to be large.
  • the orientation is arranged to obtain a plurality of different alignment domains, so that the multi-domain vertical alignment liquid crystal display can achieve a wide viewing angle.
  • the pixel structure used in the multi-domain vertical alignment type liquid crystal display is liable to cause a color washout problem, and the problem of fading is usually to increase the alignment field in the pixel structure, for example, to increase the four alignment fields to eight. Orientation field.
  • the increase in the alignment area will affect the transmittance of the display panel and reduce the display quality.
  • the present application provides a pixel structure, a display panel, and a display device to improve the transmittance of the display panel when the alignment field is increased, and to enhance the display quality.
  • the embodiment of the present application provides a pixel structure, where the pixel structure includes:
  • a scan line which is perpendicular to the data line, the data line and the scan line are enclosed to form a pixel area, and the pixel areas are arranged in a matrix on the display panel;
  • a first electrode layer disposed on the first substrate of the display panel, including a first sheet electrode and a first strip electrode;
  • the first strip electrode includes at least two first strip structures, any two The widths of the adjacent first strip-shaped structures are not equal to each other, and a first slit is formed between each two adjacent first strip-shaped structures;
  • a region where the first sheet-shaped electrode is located is a first region, All of the first strip electrodes and a region where all of the first slits are located are a second region;
  • a second electrode layer disposed on the second substrate opposite to the first substrate, including a second sheet electrode and a second strip electrode;
  • the second strip electrode includes at least two second strip structures The width of any two adjacent second strip structures is not equal to each other, and a second slit is formed between each two adjacent second strip structures;
  • the area of the second sheet electrode is a third region, wherein all of the second strip electrodes and all of the regions in which the second slit is located are a fourth region;
  • the second area is opposite to the fourth area and has an equal area
  • the first area is opposite to the third area and has an equal area
  • the areas of the first electrode layer and the second electrode layer are both Less than or equal to the area of the pixel area.
  • first strip structure and the second strip structure each extend at at least two extension angles.
  • the pixel region includes at least two pixel sub-regions, the number of the pixel sub-regions being equal to the number of the extended angles.
  • the extension angle of the first strip-like structure in the same one of the pixel sub-regions is equal to the extension angle of the second strip-like structure.
  • first strip structure and the second strip structure each extend at four extension angles, including 45°, 135°, 225°, and 315°.
  • the width of the first strip structure is greater than 50% of the width of the first slit adjacent the first strip structure.
  • the width of the second strip structure is greater than 50% of the width of the second slit adjacent the second strip structure.
  • the width of the first strip structure or the second strip structure of the same pixel sub-region gradually decreases from the middle to the edge.
  • the width of the first slit or the second slit of the same pixel sub-region gradually decreases from the middle to the edge.
  • the embodiment of the present application provides a display panel, which includes a first substrate, a second substrate, a liquid crystal layer, and a pixel structure, and the pixel structure includes:
  • a scan line which is perpendicular to the data line, the data line and the scan line are enclosed to form a pixel area, and the pixel areas are arranged in a matrix on the display panel;
  • a first electrode layer disposed on the first substrate of the display panel, including a first sheet electrode and a first strip electrode;
  • the first strip electrode includes at least two first strip structures, any two The widths of the adjacent first strip-shaped structures are not equal to each other, and a first slit is formed between each two adjacent first strip-shaped structures;
  • a region where the first sheet-shaped electrode is located is a first region, All of the first strip electrodes and a region where all of the first slits are located are a second region;
  • a second electrode layer disposed on the second substrate opposite to the first substrate, including a second sheet electrode and a second strip electrode;
  • the second strip electrode includes at least two second strip structures The width of any two adjacent second strip structures is not equal to each other, and a second slit is formed between each two adjacent second strip structures;
  • the area of the second sheet electrode is a third region, wherein all of the second strip electrodes and all of the regions in which the second slit is located are a fourth region;
  • the second area is opposite to the fourth area and has an equal area
  • the first area is opposite to the third area and has an equal area
  • the areas of the first electrode layer and the second electrode layer are both Less than or equal to the area of the pixel area.
  • first strip structure and the second strip structure each extend at at least two extension angles.
  • the pixel region includes at least two pixel sub-regions, the number of the pixel sub-regions being equal to the number of the extended angles.
  • the extension angle of the first strip-like structure in the same one of the pixel sub-regions is equal to the extension angle of the second strip-like structure.
  • first strip structure and the second strip structure each extend at four extension angles, including 45°, 135°, 225°, and 315°.
  • the width of the first strip structure is greater than 50% of the width of the first slit adjacent the first strip structure.
  • the width of the second strip structure is greater than 50% of the width of the second slit adjacent the second strip structure.
  • the width of the first strip structure or the second strip structure of the same pixel sub-region gradually decreases from the middle to the edge.
  • the width of the first slit or the second slit of the same pixel sub-region gradually decreases from the middle to the edge.
  • the width of the first slit or the second slit of the same pixel sub-region gradually becomes smaller in a counterclockwise direction.
  • the embodiment of the present application provides a display device, including a housing and a display panel fixed in the housing, the display panel including a first substrate, a second substrate, a liquid crystal layer, and a pixel Structure, the pixel structure includes:
  • a scan line which is perpendicular to the data line, the data line and the scan line are enclosed to form a pixel area, and the pixel areas are arranged in a matrix on the display panel;
  • a first electrode layer disposed on the first substrate of the display panel, including a first sheet electrode and a first strip electrode;
  • the first strip electrode includes at least two first strip structures, any two The widths of the adjacent first strip-shaped structures are not equal to each other, and a first slit is formed between each two adjacent first strip-shaped structures;
  • a region where the first sheet-shaped electrode is located is a first region, All of the first strip electrodes and a region where all of the first slits are located are a second region;
  • a second electrode layer disposed on the second substrate opposite to the first substrate, including a second sheet electrode and a second strip electrode;
  • the second strip electrode includes at least two second strip structures The width of any two adjacent second strip structures is not equal to each other, and a second slit is formed between each two adjacent second strip structures;
  • the area of the second sheet electrode is a third region, wherein all of the second strip electrodes and all of the regions in which the second slit is located are a fourth region;
  • the first strip structure and the second strip structure are each extended by at least two extending angles, and the width of the first strip structure is equal to the width of the second strip structure;
  • the areas of the electrode layer and the second electrode layer are both smaller than or equal to the area of the pixel area; the second area is opposite to the fourth area and the area is equal, the first area and the third area
  • the first electrode layer and the second electrode layer have an area smaller than or equal to an area of the pixel region.
  • the electrode layers including the strip structure are respectively disposed on the first substrate and the second substrate in the display panel to control the arrangement direction of the liquid crystal molecules in the display panel, thereby obtaining a plurality of different alignment fields.
  • the pixel structure is advantageous for improving the transmittance of the display panel and enhancing the display quality.
  • FIG. 1 is a schematic structural diagram of a pixel structure according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a first electrode layer in a pixel structure according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a second electrode layer in a pixel structure according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • the pixel structure 300 includes a data line 310 , a scan line 320 , a switching element 330 , a first electrode layer 100 , and a second electrode layer 200 .
  • the data line 310 and the scan line 320 are perpendicular to each other, and the data line 310 and the scan line 320 are enclosed to form a pixel area 340, and the pixel area 340 is arranged in a matrix form on the display panel.
  • the switching element 330 is electrically connected to the data line 310 and the scan line 320.
  • the data line 310, the scan line 320, and the switching element 330 may be disposed on the first substrate 410 or the second substrate 420 of the display panel 400.
  • the scan line 320 extends in a horizontal direction
  • the data line 310 extends in a vertical direction.
  • the switching element 330 may be a thin film transistor (TFT), but is not limited thereto.
  • the gate of the thin film transistor is connected to the scan line 320, the source is connected to the data line 310, and the drain is connected to the pixel electrode.
  • the first electrode layer 100 is disposed on the first substrate 410 of the display panel 400, and includes a first sheet electrode 110 and a first strip electrode 120; the first strip electrode 120 includes at least two a first strip structure 121, the widths of any two adjacent first strip structures 121 are not equal to each other, and a first slit 122 is formed between each two adjacent first strip structures 121;
  • the area where the first sheet electrode 110 is located is the first area 131, and the area where all the first strip electrodes 120 and all the first slits 122 are located is the second area 132.
  • the second electrode layer 200 is disposed on the second substrate 420 opposite to the first substrate 410, and includes a second sheet electrode 210 and a second strip electrode 220.
  • the second strip electrode 220 includes at least two a second strip structure 221, the width of any two adjacent second strip structures 221 are not equal to each other, and a second slit 222 is formed between each two adjacent second strip structures 221;
  • the area where the second sheet electrode 210 is located is the third area 232, and the area where all the second strip electrodes 220 and all the second slits 222 are located is the fourth area 231.
  • the second region 132 is opposite to the fourth region 231 and has an equal area, and the first region 131 is opposite to the third region 232 and has an equal area; the first electrode layer 100 and the second region
  • the area of the electrode layer 200 is less than or equal to the area of the pixel region 340.
  • the display panel 400 includes, but is not limited to, a liquid crystal display (LCD), a plasma display panel (PDP), and a curved panel.
  • the liquid crystal panel includes a Thin Film Transistor-Liquid Crystal Display (TFT-LCD), a TN panel (Twisted Nematic+Film), a VA-type panel (Vertical Alignment), an IPS panel (In Plane Switching), and a COA. (Color Filter on Array) panel, etc.
  • the display panel 400 is a liquid crystal display (LCD).
  • the first substrate 410 is an array substrate (ARRAY), and the second substrate 420 is a color filter film substrate (CF) disposed opposite to the first substrate 410.
  • the first substrate 410 is a color filter film substrate (CF)
  • the second substrate 420 is an array substrate (ARRAY) disposed opposite to the first substrate 410.
  • the first substrate 410 is an array substrate (ARRAY)
  • the second substrate 420 is a color filter film substrate (CF) disposed opposite to the first substrate 410, and is disposed on the first substrate 410.
  • the first electrode layer 100 serves as a pixel electrode in the pixel structure 300
  • the second electrode layer 200 disposed on the second substrate 420 serves as a common electrode in the pixel structure 300.
  • a voltage difference may be formed between the first electrode layer 100 and the second electrode layer 200 to drive liquid crystal molecules in the display panel 400.
  • the area ratio of the second area 132 and the fourth area 231 can be adjusted according to actual production debugging results, thereby obtaining a better area ratio for improving the color washout of the display panel 400.
  • the area ratio of the second area 132 to the fourth area 231 is 1:1, that is, the second area 132 is opposite to the fourth area 231 and the area is equal.
  • the area ratio of the first area 131 and the third area 232 is also 1:1, that is, the first area 131 and the third area 232 are oppositely disposed and have the same area.
  • the first region 131 has the same area as the second region 132.
  • the third area 232 is the same area as the fourth area 231.
  • an area ratio of the second area 132 to the fourth area 231 may also be 1:2.
  • an area ratio of the first area 131 to the third area 232 is 2. :1.
  • the embodiment of the present application does not limit the area ratio of the second region 132 and the fourth region 231.
  • the first electrode layer 100 and the second electrode layer 200 may be made of a transparent conductive material such as indium tin oxide, indium zinc oxide, or the like.
  • the light transmittance of the material such as indium tin oxide or indium zinc oxide can greatly increase the aperture ratio of the pixel structure 300, thereby improving the transmittance of the display panel 400.
  • This application does not limit the materials of the first electrode layer 100 and the second electrode layer 200.
  • the first electrode layer 100 and the second electrode layer 200 are respectively disposed on two opposite substrates, which are overlapped with each other and located in the pixel region 340.
  • the first strip structure 121 and the second strip structure 221 each extend at at least two extension angles.
  • the first strip structure 121 and the second strip structure 221 each extend at four extending angles including 45°, 135°, 225°, and 315°.
  • the extending angle is an angle between the first strip structure 121 and the second strip structure 221 and the scan line 320.
  • the pixel region 340 includes at least two pixel sub-regions 341, the number of the pixel sub-regions 341 being equal to the number of the extended angles; the same in the same pixel sub-region 341
  • the extension angle of the first strip structure 121 is equal to the extension angle of the second strip structure 221.
  • the pixel area 340 may be divided into four of the pixel sub-regions 341.
  • the long axes of the liquid crystal molecules may be respectively opposite to each other. It is inclined in the horizontal direction by 45°, 135°, -45°, and -135°.
  • the width of the first strip structure 121 is greater than 50% of the width of the first slit 122 adjacent the first strip structure 121.
  • the first strip structure 121 is spaced apart from the first slit 122 by the first electrode layer 100.
  • Each of the first strip structures 121 has at least one of the first slits 122 adjacent thereto. For example, if the width of the first strip structure 121 is 4 micrometers and the number of the first slits 122 adjacent to the first strip structure 121 is two, then any one and the first The width of the first slit 122 adjacent to the strip structure 121 is less than 8 microns. In particular, the width of the first strip structure 121 is 1.25 times the width of the first slit 122 adjacent to the first strip structure 121.
  • the width of the second strip structure 221 is greater than 50% of the width of the second slit 222 adjacent to the second strip structure 221.
  • the embodiment of the present application can prevent the first electrode layer 100 and the second electrode layer 200 from being interposed due to the width of the first slit 122 or the second slit 222 being too high. The steering sensitivity between the liquid crystal molecules is lowered.
  • the width of the first strip structure 121 or the second strip structure 221 of the same pixel sub-region 341 gradually decreases from the middle to the edge.
  • the widths of the first strip structure 121 or the second strip structure 221 of the same pixel sub-region 341 are arranged in a predetermined arrangement order.
  • the width of the first strip structure 121 or the second strip structure 221 of the same pixel sub-region 341 gradually decreases from the middle to the edge.
  • the widths of any two adjacent first strip structures 121 of the same pixel sub-region 341 are not equal to each other.
  • the width of the first strip structure 121 or the second strip structure 221 of the same pixel sub-region 341 gradually decreases in a counterclockwise direction; or the same pixel sub-region 341
  • the width of the first strip structure 121 or the second strip structure 221 gradually increases in a counterclockwise direction.
  • the embodiment of the present application does not limit the preset arrangement order of the first strip structure 121 or the second strip structure 221 of the pixel sub-region 341.
  • the width of the first slit 122 or the second slit 222 of the same pixel sub-region 341 gradually decreases from the middle to the edge.
  • the widths of the first slits 122 or the second slits 222 of the same pixel sub-region 341 are arranged in a predetermined arrangement order.
  • the width of the first slit 122 or the second slit 222 of the same pixel sub-region 341 gradually becomes smaller from the middle to the edge.
  • the widths of any two adjacent first slits 122 of the same pixel sub-region 341 are not equal to each other.
  • the width of the first slit 122 or the second slit 222 of the same pixel sub-region 341 gradually decreases in a counterclockwise direction; or the same pixel sub-region 341
  • the width of the first slit 122 or the second slit 222 gradually increases in a counterclockwise direction.
  • the embodiment of the present application does not limit the preset arrangement order of the first slit 122 or the second slit 222 of the pixel sub-region 341.
  • the electrode layer including the strip structure is respectively disposed on the first substrate 410 and the second substrate 420 in the display panel 400 to control the liquid crystal molecules in the display panel 400. Arranging the directions, and then obtaining a plurality of different alignment fields, to achieve a wide viewing angle effect of the display panel.
  • the pixel structure 300 is advantageous for improving the transmittance of the display panel 400 and enhancing the display quality.
  • FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present application.
  • the display panel 400 includes a first substrate 410, a second substrate 420, a liquid crystal layer 430, and a pixel structure 300.
  • the display panel 400 includes, but is not limited to, a liquid crystal display (LCD), an organic light-emitting diode (OLED), and a field emission display (Field emission display, FED), plasma display panel PDP (Plasma Display Panel), curved panel.
  • the liquid crystal panel includes a Thin Film Transistor-Liquid Crystal Display (TFT-LCD), a TN panel (Twisted Nematic+Film), a VA-type panel (Vertical Alignment), an IPS panel (In Plane Switching), and a COA. (Color Filter on Array) panel, etc.
  • the pixel structure 300 may be any one of the pixel structures 300 provided in the foregoing embodiments, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of a display device 900 according to an embodiment of the present application.
  • the display device 900 can be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the display device 900 includes a housing 910 and a display panel 400 fixed in the housing 910.
  • the display panel 400 includes a first substrate 410, a second substrate 420, a liquid crystal layer 430, and a pixel structure 300.
  • the display panel 400 may be any one of the display panels provided in the foregoing embodiments.
  • the pixel structure 300 may be any one of the pixel structures provided in the foregoing embodiments, and details are not described herein again.

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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)
  • Spectroscopy & Molecular Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne une structure de pixel qui comprend une première couche d'électrode (100) et une seconde couche d'électrode (200) ; la première couche d'électrode (100) comprend une première électrode de feuille (110) située au niveau d'une première région (131) et une première électrode de bande (120) située au niveau d'une deuxième région (132) ; la largeur de deux quelconques premières structures de bande adjacentes (121) n'est pas égale, et une première fente (122) est formée entre chaque paire de premières structures de bande adjacentes (121) ; la seconde couche d'électrode (200) comprend une seconde électrode en feuille (210) située au niveau d'une troisième région (232) et une seconde électrode en bande (220) située au niveau d'une quatrième région (231) ; la largeur de deux quelconques secondes structures de bande adjacentes (221) n'est pas égale, et une seconde fente (222) est formée entre chaque paire de secondes structures de bande adjacentes (221) ; la deuxième région (132) et la quatrième région (231) sont disposées à l'opposé l'une de l'autre et ont la même zone, et la première région (131) et la troisième région (232) sont disposées à l'opposé l'une de l'autre et ont la même zone ; et la disposition structurale des première et seconde couches d'électrode peut améliorer efficacement la perméabilité d'un panneau d'affichage et améliorer la qualité d'affichage.
PCT/CN2018/114178 2018-02-01 2018-11-06 Structure de pixel, panneau d'affichage et dispositif d'affichage Ceased WO2019148919A1 (fr)

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Application Number Priority Date Filing Date Title
CN201820175678.7 2018-02-01
CN201820175678.7U CN208156377U (zh) 2018-02-01 2018-02-01 一种像素结构、显示面板及显示装置

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WO2019148919A1 true WO2019148919A1 (fr) 2019-08-08

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CN112083605B (zh) * 2020-08-26 2022-11-29 成都中电熊猫显示科技有限公司 液晶面板、显示装置及液晶面板的配向方法
KR20260002050A (ko) * 2024-06-28 2026-01-06 삼성전자주식회사 디스플레이 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101382707A (zh) * 2007-09-06 2009-03-11 奇美电子股份有限公司 液晶显示装置
US20110149223A1 (en) * 2009-12-22 2011-06-23 Au Optronics Corporation Pixel structure and display panel
CN107024808A (zh) * 2017-03-27 2017-08-08 友达光电股份有限公司 显示面板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101382707A (zh) * 2007-09-06 2009-03-11 奇美电子股份有限公司 液晶显示装置
US20110149223A1 (en) * 2009-12-22 2011-06-23 Au Optronics Corporation Pixel structure and display panel
CN107024808A (zh) * 2017-03-27 2017-08-08 友达光电股份有限公司 显示面板

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