WO2020258380A1 - Écran d'affichage à cristaux liquides et dispositif d'affichage - Google Patents

Écran d'affichage à cristaux liquides et dispositif d'affichage Download PDF

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Publication number
WO2020258380A1
WO2020258380A1 PCT/CN2019/095434 CN2019095434W WO2020258380A1 WO 2020258380 A1 WO2020258380 A1 WO 2020258380A1 CN 2019095434 W CN2019095434 W CN 2019095434W WO 2020258380 A1 WO2020258380 A1 WO 2020258380A1
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Prior art keywords
pixel electrode
liquid crystal
crystal display
display panel
pixel
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PCT/CN2019/095434
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English (en)
Chinese (zh)
Inventor
张琪
林永伦
张银峰
曹武
李轩
张翼鹤
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Publication of WO2020258380A1 publication Critical patent/WO2020258380A1/fr

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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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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

Definitions

  • This application relates to the field of display technology, and in particular to a liquid crystal display panel and a display device.
  • Wide viewing angle film liquid crystal display panels are widely used in the display field due to their advantages such as high contrast and wide viewing angles.
  • wide viewing angle film liquid crystal display panels have color shifts at low gray levels, which affect the display effect.
  • the existing liquid crystal display panel has a technical problem of serious color shift at low gray scale, and needs improvement.
  • the present application provides a liquid crystal display panel and a display device to alleviate the technical problem of serious color shift under low gray scale of the existing liquid crystal display panel.
  • This application provides a liquid crystal display panel, including:
  • An array substrate on which pixel electrodes corresponding to at least three pixel units with different light-emitting colors are arranged, and each pixel electrode includes a trunk portion and a plurality of branch portions connected to the trunk portion;
  • the light-shielding layer is provided corresponding to the backbone of at least one pixel electrode.
  • the material of the light shielding layer is a metal material.
  • the area of the light shielding layer is greater than or equal to the area of the main portion of the pixel electrode.
  • the light shielding layer is formed on the array substrate.
  • the array substrate includes a first substrate, a driving circuit layer, and the pixel electrode that are stacked, and the light shielding layer is formed between the first substrate and the pixel electrode .
  • the light shielding layer is formed between the first substrate and the driving circuit layer.
  • the light shielding layer is formed between the driving circuit layer and the pixel electrode.
  • the array substrate includes a first substrate, a driving circuit layer, and the pixel electrode that are stacked, and the light shielding layer is formed on a side of the pixel electrode away from the driving circuit layer.
  • the liquid crystal display panel further includes a color filter substrate, the color filter substrate and the array substrate are arranged in a box, and the color filter substrate includes a second substrate formed on the first substrate.
  • the black matrix layer on the side of the two substrate close to the array substrate, the color resist layer provided in the same layer as the black matrix layer, and the common electrode formed on the side of the black matrix layer close to the array substrate, the light shielding The layer is formed on the color filter substrate.
  • the black matrix layer forms the light shielding layer.
  • the light shielding layer is formed between the color resist layer and the common electrode.
  • the light shielding layer is formed on a side of the common electrode away from the color resist layer.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to a blue pixel unit.
  • the pixel electrode forms a first angle with the first direction of the liquid crystal display panel
  • the second pixel electrode forms a second angle with the first direction of the liquid crystal display panel
  • the third pixel electrode forms a second angle with the liquid crystal display panel.
  • the first direction of the display panel forms a third included angle, the first included angle is greater than the second included angle, and the second included angle is greater than the third included angle.
  • the first included angle is 45 degrees
  • the second included angle is 40 degrees
  • the third included angle is 35 degrees.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to a blue pixel unit, and the light shielding layer
  • the second stem portion corresponding to the second pixel electrode and the third stem portion of the third pixel electrode are provided, and the first stem portion corresponding to the first pixel is not provided.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to the blue pixel unit, and the shielding layer A first stem portion corresponding to the first pixel electrode, a second stem portion corresponding to the second pixel electrode, and a stem portion corresponding to the third pixel electrode are provided.
  • the present application also provides a display device, including a liquid crystal display panel, the liquid crystal display panel including:
  • An array substrate where at least three pixel electrodes corresponding to pixel units with different light-emitting colors are provided, and each pixel electrode includes a main stem portion and a plurality of branch portions connected to the stem portion;
  • the light-shielding layer is provided corresponding to the backbone of at least one pixel electrode.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to the blue pixel unit.
  • the electrode forms a first angle with the first direction of the liquid crystal display panel
  • the second pixel electrode forms a second angle with the first direction of the liquid crystal display panel
  • the third pixel electrode forms a second angle with the liquid crystal display panel.
  • the first direction of the panel forms a third included angle, the first included angle is greater than the second included angle, and the second included angle is greater than the third included angle.
  • the first included angle is 45 degrees
  • the second included angle is 40 degrees
  • the third included angle is 35 degrees.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to a blue pixel unit, and the light shielding layer corresponds to
  • the second main portion of the second pixel electrode and the third main portion of the third pixel electrode are provided, but the first main portion of the first pixel is not provided.
  • the present application provides a liquid crystal display panel and a display device.
  • the liquid crystal display panel includes an array substrate and a light shielding layer.
  • the array substrate is provided with at least three pixel electrodes corresponding to pixel units with different light-emitting colors, and each pixel electrode includes a backbone. And a plurality of branch parts connected with the main part; the light shielding layer is arranged corresponding to the main part of at least one pixel electrode.
  • the main part of the pixel electrode is shielded by the light shielding layer, and the brightness change range of the pixel unit in the side view under low gray scale is reduced, thus improving the color shift of the pixel unit.
  • FIG. 1 is a schematic diagram of the first structure of a liquid crystal display panel provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the structure of pixel electrodes in a liquid crystal display panel provided by an embodiment of the application;
  • FIG. 3 is a schematic diagram of the arrangement of a light shielding layer in a liquid crystal display panel provided by an embodiment of the application;
  • FIG. 4 is a schematic diagram of a second structure of a liquid crystal display panel provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a third structure of a liquid crystal display panel provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of a fourth structure of a liquid crystal display panel provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a fifth structure of a liquid crystal display panel provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a sixth structure of a liquid crystal display panel provided by an embodiment of the application.
  • the present application provides a liquid crystal display panel and a display device to alleviate the technical problem of serious color shift under low gray scale of the existing liquid crystal display panel.
  • FIG. 1 it is a schematic diagram of the first structure of a liquid crystal display panel provided by an embodiment of this application.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40.
  • the array substrate 10 includes a first substrate 11, a driving circuit layer 12 formed on the side of the first substrate 11, and a pixel electrode 13 formed on the side of the driving circuit layer 12 away from the first substrate 11.
  • the first substrate 11 is mainly used to carry components or film layers, and its material can be glass, quartz, organic polymer, or other applicable materials.
  • the material of the first substrate 11 is not limited in this application.
  • the driving circuit layer 12 is used to provide driving signals to the pixel electrodes 13, and includes a plurality of signal lines (not shown), such as gate lines and data lines, etc., and are arranged in a matrix in a vertical staggered manner.
  • the substrate 10 is divided into a plurality of pixel areas, and each pixel area is provided with a pixel electrode 13.
  • the array substrate 10 includes at least three pixel units with different light-emitting colors, such as a red pixel unit, a green pixel unit, a blue pixel unit, etc., and each pixel electrode 13 corresponds to a pixel unit.
  • the pixel electrode 13 includes a first pixel electrode 131 corresponding to a red pixel unit, a second pixel electrode 132 corresponding to a green pixel unit, and a third pixel electrode 133 corresponding to a blue pixel unit.
  • the color filter substrate 20 and the array substrate 10 are arranged in a box, including a second substrate 21, a black matrix layer 22 formed on the side of the second substrate 21 close to the array substrate 10, and a color resist layer provided in the same layer as the black matrix layer 22 23.
  • the second substrate 21 is mainly used to carry components or film layers, and its material can be glass, quartz, organic polymer, or other applicable materials.
  • the material of the second substrate 21 is not limited in this application.
  • the black matrix layer 22 is arranged at an array interval on the side of the second substrate 21 close to the array substrate 10 to form a plurality of opening regions (not shown).
  • a color resist layer 23 is formed in the opening region, and the color resist layer 23 includes corresponding red pixels
  • the common electrode 24 is usually a transparent conductive oxide, such as indium tin oxide.
  • a liquid crystal layer 30 is filled between the array substrate 10 and the color filter substrate 20 and sealed with a sealant 31.
  • a backlight module (not shown) is also provided on the side of the array substrate 10 far away from the color filter substrate 20, a backlight module (not shown) is also provided.
  • a voltage is applied between the pixel electrode 13 and the common electrode 14, an electric field is generated between the two, so that the liquid crystal The molecules twist, the light emitted by the backlight module passes through the array substrate 10, passes through the liquid crystal layer 30 to the color filter substrate 20, and the liquid crystal display panel displays images.
  • the light shielding layer 40 is disposed on the array substrate 10 and is located between the first substrate 11 and the pixel electrode 13. In this embodiment, the light shielding layer 40 is located between the first substrate 11 and the driving circuit layer 12, and the light shielding layer 40 The material is metal.
  • each pixel electrode 13 includes a trunk portion and a plurality of branch portions connected to the trunk portion, and the light shielding layer 40 is provided corresponding to the trunk portion of at least one pixel electrode 13.
  • FIG. 2 it is a schematic diagram of the structure of the pixel electrode in the liquid crystal display panel provided by the embodiment of the application.
  • the array substrate 10 includes a plurality of pixel regions 100, and each pixel region 100 is provided with a pixel electrode 13.
  • Each pixel electrode 13 includes a trunk portion and a plurality of branch portions connected to the trunk portion, wherein the trunk portion includes a horizontal trunk portion and Vertical main cadre.
  • the first pixel electrode 131 includes a first vertical main portion 1311, a first horizontal main portion 1312, and a plurality of first branch portions 1313 connected to the first vertical main portion 1311, the first horizontal main portion 1312, and the first vertical main portion 1312
  • the main part 1311 and the first horizontal main part 1312 are perpendicular to each other, and the pixel area 100 in which they are located is divided into four partitions.
  • the first branch part 1313 is composed of the first vertical main part 1311 and the first horizontal
  • the main stem 1312 extends obliquely and is arranged in parallel with each other.
  • the second pixel electrode 132 includes a second vertical main portion 1321, a second horizontal main portion 1322, and a plurality of second branch portions 1323 connected to the second vertical main portion 1321, the second horizontal main portion 1322, wherein the second vertical main portion 1321 and the second horizontal backbone 1322 are perpendicular to each other, and the pixel area 100 where they are located is divided into four partitions.
  • the second branch 1323 is composed of a second vertical backbone 1321 and a second horizontal backbone. 1322 extends obliquely, and are arranged parallel to each other.
  • the third pixel electrode 133 includes a third vertical main portion 1331, a third horizontal main portion 1332, and a plurality of third branch portions 1333 connected to the third vertical main portion 1331 and the third horizontal main portion 1332, wherein the third vertical main portion 1331 and the third horizontal main part 1332 are perpendicular to each other, and the pixel area 100 in which they are located is divided into four partitions.
  • the third branch part 1333 is composed of a third vertical main part 1331 and a third horizontal main part 1332 extends obliquely, and are arranged parallel to each other.
  • the slit angle is the difference between the extending direction of the pixel electrode 13 and the first direction of the liquid crystal display panel.
  • the extension direction of the pixel electrode 13 is the direction of the vertical backbone
  • the first direction of the liquid crystal display panel is the extension direction 401 of the long axis of the pixel area
  • the slit angle of the first pixel electrode 131 is the first vertical.
  • the first included angle ⁇ 1 between the trunk portion 1311 and the first direction 401, the slit angle of the second pixel electrode 132 is the second included angle ⁇ 2 between the second vertical trunk portion 1312 and the first direction 401, and the third pixel electrode 133
  • the slit angle of is the third angle ⁇ 3 between the third vertical main portion 1313 and the first direction 401.
  • FIG. 3 it is a schematic diagram of the arrangement of the light shielding layer in the liquid crystal display panel provided by the embodiment of this application.
  • the light shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the arrangement of the second main portion corresponding to the second pixel electrode 132 may be the arrangement corresponding to only the second vertical main portion 1321 of the second pixel electrode 132, or only the second horizontal main portion corresponding to the second pixel electrode 132.
  • the stem portion 1322 is provided, or the light shielding layer 40 is provided corresponding to the second vertical stem portion 1321 and the second horizontal stem portion 1322.
  • the arrangement of the third stem portion corresponding to the third pixel electrode 133 may be provided corresponding to only the third vertical stem portion 1331 of the third pixel electrode 133, or only corresponding to the third horizontal stem portion 1332 of the third pixel electrode 133. It is also possible to provide a light shielding layer 40 corresponding to both the third vertical main portion 1331 and the third horizontal main portion 1332.
  • the light-shielding layer 40 is arranged in the light-emitting direction of the liquid crystal display panel to block the main part of the pixel electrode 13, which can effectively reduce the brightness change range of the pixel unit in side view, and effectively change the color shift phenomenon.
  • the position of the light shielding layer 40 is not limited to this.
  • first trunk portion corresponding to the first pixel electrode 131, the second trunk portion corresponding to the second pixel electrode 132, and the third trunk portion corresponding to the third pixel electrode 133 are all provided with a light shielding layer 40.
  • only the first trunk portion corresponding to the first pixel electrode 131 is provided with the light shielding layer 40.
  • only the second main portion corresponding to the second pixel electrode 132 is provided with the light shielding layer 40.
  • only the third main stem portion corresponding to the third pixel electrode 133 is provided with the light shielding layer 40.
  • the first trunk portion corresponding to the first pixel electrode 131 and the second trunk portion corresponding to the second pixel electrode 132 are provided with a light shielding layer 40, and the third trunk portion corresponding to the third pixel electrode 133 is not provided with light shielding. ⁇ 40.
  • the first trunk portion corresponding to the first pixel electrode 131 and the third trunk portion corresponding to the third pixel electrode 133 are provided with a light shielding layer 40, and the second trunk portion corresponding to the second pixel electrode 132 is not provided with light shielding. ⁇ 40.
  • the color cast can also be improved to a certain extent.
  • the light-shielding layer 40 can be arranged in any of the above-mentioned arrangement modes.
  • This application has tested various arrangements of the above-mentioned light-shielding layer 40, and found that the main part on the second pixel electrode 132 and the third pixel electrode 133 is shielded by the light-shielding layer 40, and the main part on the first pixel electrode 131 is not
  • the shading layer 40 is provided to achieve the best color cast improvement effect.
  • the The slit angles are all 45 degrees, and the light-shielding layer 40 is not provided, and the stems on the second pixel electrode 132 and the third pixel electrode 133 are shielded by the light-shielding layer 40, and the stems on the first pixel electrode 131 are not provided with light-shielding. Layer 40 in both cases.
  • the red pixel unit ( R), the green pixel unit (G), and the blue pixel unit (B) have different brightness ratios.
  • the brightness of color B has the most obvious change; the green pixel unit (G) and the blue pixel unit ( After the main part of B) is shielded by the light-shielding layer 40, the red pixel unit (R), the green pixel unit (G), and the blue pixel unit (B) have reduced brightness changes.
  • the brightness change of color B has the greatest decrease. obvious.
  • the entire pixel electrode 13 is not provided with the light-shielding layer 40, after the main parts of the green pixel unit (G) and the blue pixel unit (B) are shielded by the light-shielding layer 40, the brightness change range of each pixel unit in side view Both are reduced, that is, the arrangement of the light shielding layer 40 improves the color shift of the liquid crystal display panel.
  • the color shift phenomenon can also be improved to a certain extent.
  • the first included angle ⁇ 1 is greater than or equal to the second included angle ⁇ 2
  • the second included angle ⁇ 2 is greater than or equal to the third included angle ⁇ 3 .
  • the first included angle ⁇ 1 is less than or equal to 45 degrees, and the third included angle ⁇ 3 is greater than or equal to 35 degrees.
  • the first included angle ⁇ 1 is set to 45 degrees
  • the second included angle ⁇ 2 is set to 40 degrees
  • the third included angle ⁇ 3 is set to 35 degrees, which achieves the best color shift improvement effect.
  • the present application is not limited to this, and the slit angle can also be set to other angles, as long as the color shift can be reduced while ensuring a certain light transmittance.
  • the light shielding layer 40 is formed between the first substrate 11 and the driving circuit layer 12, the area of the light shielding layer 40 is greater than or equal to the area of the backbone of the pixel electrode 13, and the light emitted by the backlight module passes through The first substrate 11 is directly blocked by the light-shielding layer 40, and light cannot pass through the backbone of the pixel electrode 13, thereby improving the color shift.
  • FIG. 4 it is a schematic diagram of the second structure of the liquid crystal display panel provided by the embodiment of this application.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40.
  • the light shielding layer 40 is disposed between the pixel electrode 13 and the driving circuit 12.
  • the area of the light shielding layer 40 is greater than or equal to the area of the backbone of the pixel electrode 13.
  • the light emitted by the backlight module passes through the first substrate 11 and the driving circuit layer 12, and is directly blocked by the light shielding layer 40.
  • the light cannot pass through the pixel electrode 13.
  • the main cadre improved the color cast phenomenon.
  • the material of the light-shielding layer 40 is a metal material, and may also be other opaque materials.
  • the light-shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the slit angle of the pixel electrode 13 is set to a first included angle ⁇ 1 45 degrees, a second included angle ⁇ 2 40 degrees, and a third included angle ⁇ 3 35 degrees.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40.
  • the light shielding layer 40 is disposed on the side of the pixel electrode 13 away from the driving circuit layer 12.
  • the area of the light shielding layer 40 is greater than or equal to the area of the backbone of the pixel electrode 13.
  • the light emitted by the backlight module passes through the first substrate 11, the driving circuit layer 12, and the backbone of the pixel electrode 13, and is blocked by the light shielding layer 40 , The light cannot pass through, which improves the color cast.
  • the material of the light-shielding layer 40 is a metal material, and may also be other opaque materials.
  • the light shielding layer 40 and the pixel electrode 13 are formed separately, that is, the pixel electrode 13 is formed first, and then the light shielding layer 40 is formed.
  • the light-shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the slit angle of the pixel electrode 13 is set to a first included angle ⁇ 1 45 degrees, a second included angle ⁇ 2 40 degrees, and a third included angle ⁇ 3 35 degrees.
  • FIG. 6 it is a schematic diagram of the fourth structure of the liquid crystal display panel provided by the embodiment of the present application.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40, wherein the light shielding layer 40 is disposed on the color filter substrate.
  • the light shielding layer 40 is formed by the black matrix layer 22. Since the black matrix layer 22 and the color resist layer 23 are arranged in the same layer, the black matrix layer 22 can be formed first, and the light shielding layer 40 is integrally formed in the opening area of the black matrix 22, and then the color resist layer 23 is formed.
  • the light shielding layer 40 corresponds to the pixel The backbone of the electrode 13.
  • the area of the light shielding layer 40 is greater than or equal to the area of the main part of the pixel electrode 13.
  • the light emitted by the backlight module passes through the first substrate 11, the driving circuit layer 12, and the main part of the pixel electrode 13, and reaches the color through the liquid crystal layer 30.
  • the film substrate is then blocked by the light-shielding layer 40, and light cannot pass through, which improves the color shift.
  • the light-shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the slit angle of the pixel electrode 13 is set to a first included angle ⁇ 1 45 degrees, a second included angle ⁇ 2 40 degrees, and a third included angle ⁇ 3 35 degrees.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40, wherein the light shielding layer 40 is disposed on the color filter substrate.
  • the light-shielding layer 40 is formed between the color resist layer 23 and the common electrode 24.
  • the black matrix layer 22 is formed first, and then the color resist layer 23 is formed. Finally, the light-shielding layer 40 is formed on the color resist layer 23.
  • the material of 40 may be the same as or different from that of the black matrix layer 22, for example, it may be a metal material.
  • the area of the light shielding layer 40 is greater than or equal to the area of the main part of the pixel electrode 13.
  • the light emitted by the backlight module passes through the first substrate 11, the driving circuit layer 12, and the main part of the pixel electrode 13, and reaches the color through the liquid crystal layer 30.
  • the film substrate is then blocked by the light-shielding layer 40, and light cannot pass through, which improves the color shift.
  • the light-shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the slit angle of the pixel electrode 13 is set to a first included angle ⁇ 1 45 degrees, a second included angle ⁇ 2 40 degrees, and a third included angle ⁇ 3 35 degrees.
  • the liquid crystal display panel includes an array substrate 10, a color filter substrate 20, a liquid crystal layer 30 and a light shielding layer 40, wherein the light shielding layer 40 is disposed on the color filter substrate.
  • the light shielding layer 40 is formed on the side of the common electrode 24 away from the color resist layer 23.
  • the material of the light-shielding layer 40 is a metal material, and may also be other opaque materials.
  • the area of the light shielding layer 40 is greater than or equal to the area of the main part of the pixel electrode 13.
  • the light emitted by the backlight module passes through the first substrate 11, the driving circuit layer 12, and the main part of the pixel electrode 13, and reaches the color through the liquid crystal layer 30.
  • the film substrate is then blocked by the light-shielding layer 40, and light cannot pass through, which improves the color shift.
  • the light-shielding layer 40 is not provided corresponding to the first main portion of the first pixel 131, and is provided corresponding to the second main portion of the second pixel electrode 132 and the third main portion of the third pixel electrode 133.
  • the slit angle of the pixel electrode 13 is set to a first included angle ⁇ 1 45 degrees, a second included angle ⁇ 2 40 degrees, and a third included angle ⁇ 3 35 degrees.
  • the present application also provides a display device, including a liquid crystal display panel.
  • the liquid crystal display panel includes an array substrate and a light-shielding layer.
  • the array substrate is provided with at least three pixel electrodes corresponding to pixel units with different light-emitting colors.
  • Each pixel electrode includes a main The stem portion and a plurality of branch portions connected to the stem portion; the light shielding layer is provided corresponding to the stem portion of at least one pixel electrode.
  • the material of the light shielding layer is a metal material.
  • the area of the light shielding layer is greater than or equal to the area of the main stem of the pixel electrode.
  • the light shielding layer is formed on the array substrate.
  • the array substrate includes a first substrate, a driving circuit layer, and a pixel electrode that are stacked, and the light shielding layer is formed between the first substrate and the pixel electrode.
  • the light shielding layer is formed between the first substrate and the driving circuit layer.
  • the light shielding layer is formed between the driving circuit layer and the pixel electrode.
  • the array substrate includes a first substrate, a driving circuit layer, and a pixel electrode that are stacked, and the light shielding layer is formed on a side of the pixel electrode away from the driving circuit layer.
  • the liquid crystal display panel further includes a color filter substrate, the color filter substrate and the array substrate are arranged in a box, the color filter substrate includes a second substrate, and a black matrix layer formed on a side of the second substrate close to the array substrate , The color resist layer arranged on the same layer as the black matrix layer, the common electrode formed on the side of the black matrix layer close to the array substrate, and the light shielding layer is formed on the color filter substrate.
  • the black matrix layer forms a light shielding layer.
  • the light shielding layer is formed between the color resist layer and the common electrode.
  • the light shielding layer is formed on the side of the common electrode away from the color resist layer.
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to a blue pixel unit.
  • the first pixel electrode and the liquid crystal display panel The first direction forms a first included angle
  • the second pixel electrode forms a second included angle with the first direction of the liquid crystal display panel
  • the third pixel electrode forms a third included angle with the first direction of the liquid crystal display panel. Greater than the second included angle, the second included angle is greater than the third included angle.
  • the first included angle is less than or equal to 45 degrees, and the third included angle is greater than or equal to 35 degrees.
  • the first included angle is 45 degrees
  • the second included angle is 40 degrees
  • the third included angle is 35 degrees
  • the pixel electrode includes a first pixel electrode corresponding to a red pixel unit, a second pixel electrode corresponding to a green pixel unit, and a third pixel electrode corresponding to the blue pixel unit, and the light shielding layer corresponds to the second pixel electrode.
  • the second trunk portion and the third trunk portion of the third pixel electrode are provided, but the first trunk portion corresponding to the first pixel is not provided.
  • the pixel electrode includes a first pixel electrode corresponding to the red pixel unit, a second pixel electrode corresponding to the green pixel unit, and a third pixel electrode corresponding to the blue pixel unit, and the shielding layer corresponds to the first pixel electrode.
  • the first stem portion, the second stem portion corresponding to the second pixel electrode, and the stem portion corresponding to the third pixel electrode are provided.
  • the present application provides a liquid crystal display panel and a display device.
  • the liquid crystal display panel includes an array substrate and a light-shielding layer.
  • the array substrate is provided with at least three pixel electrodes corresponding to pixel units with different light-emitting colors.
  • Each pixel electrode includes a backbone and a A plurality of branch portions connected to the trunk portion; the light shielding layer is provided corresponding to the trunk portion of at least one pixel electrode.
  • the main part of the pixel electrode is shielded by the light-shielding layer, and the brightness change range of the pixel unit in the side view under low gray scale is reduced, thereby improving the color shift phenomenon of the pixel unit.

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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

La présente invention concerne un écran d'affichage à cristaux liquides et un dispositif d'affichage. L'écran d'affichage à cristaux liquides comprend un substrat de réseau et une couche de blocage de lumière. Au moins trois types d'électrodes de pixel correspondant respectivement à des unités de pixel émettant différentes lumières colorées sont disposés sur le substrat de réseau, et chaque électrode de pixel comprend une partie tronc et une pluralité de parties ramifiées reliées à la partie tronc. La couche de blocage de lumière est disposée de manière à correspondre à une partie tronc d'au moins un type des électrodes de pixel. La couche de blocage de lumière est utilisée pour bloquer la partie tronc de l'électrode de pixel, ce qui permet d'atténuer le problème de décalage de couleur d'unité de pixel.
PCT/CN2019/095434 2019-06-24 2019-07-10 Écran d'affichage à cristaux liquides et dispositif d'affichage WO2020258380A1 (fr)

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CN201910548875.8 2019-06-24
CN201910548875.8A CN110346987A (zh) 2019-06-24 2019-06-24 液晶显示面板和显示装置

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CN111025803B (zh) 2019-12-12 2021-05-07 深圳市华星光电半导体显示技术有限公司 一种显示面板
CN112991966B (zh) * 2020-04-26 2022-11-29 重庆康佳光电技术研究院有限公司 一种显示背板、显示装置和显示背板制作方法
CN111474779A (zh) 2020-05-13 2020-07-31 深圳市华星光电半导体显示技术有限公司 阵列基板和液晶显示面板
CN111781768A (zh) * 2020-07-09 2020-10-16 深圳市华星光电半导体显示技术有限公司 液晶显示面板及显示装置
CN112859403A (zh) 2021-03-01 2021-05-28 Tcl华星光电技术有限公司 液晶显示面板
CN113448118A (zh) * 2021-06-30 2021-09-28 Tcl华星光电技术有限公司 显示面板及电子设备
CN115268132B (zh) * 2022-07-19 2023-08-22 武汉华星光电技术有限公司 显示装置及其显示面板
CN115731850B (zh) * 2022-11-16 2024-07-05 深圳市华星光电半导体显示技术有限公司 显示模组及其驱动方法
CN115903316A (zh) * 2022-12-27 2023-04-04 Tcl华星光电技术有限公司 阵列基板和显示面板
CN116068794A (zh) * 2022-12-28 2023-05-05 Tcl华星光电技术有限公司 显示面板

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