WO2017049827A1 - 一种像素结构、显示面板及显示装置 - Google Patents

一种像素结构、显示面板及显示装置 Download PDF

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WO2017049827A1
WO2017049827A1 PCT/CN2016/073053 CN2016073053W WO2017049827A1 WO 2017049827 A1 WO2017049827 A1 WO 2017049827A1 CN 2016073053 W CN2016073053 W CN 2016073053W WO 2017049827 A1 WO2017049827 A1 WO 2017049827A1
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electrode
pixel
pixel unit
film transistor
aperture ratio
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PCT/CN2016/073053
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English (en)
French (fr)
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武晓娟
陈会顺
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京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Priority to US15/326,345 priority Critical patent/US10042219B2/en
Publication of WO2017049827A1 publication Critical patent/WO2017049827A1/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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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]
    • 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
    • G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a pixel structure, a display panel, and a display device.
  • liquid crystal displays have become more and more widely used in modern life, such as mobile phone display, computer display, TV display and so on.
  • Conventional single-domain liquid crystal displays have been unable to meet the requirements of liquid crystal displays due to shortcomings such as low contrast, asymmetrical viewing angles, and color shifting at different angles.
  • the existing liquid crystal display can reduce the side view role bias by the dual domain liquid crystal display technology.
  • the aperture ratio of each adjacent two pixel units is the same in the pixel unit column direction.
  • the direction of the corner of the slit toward the end portion of the thin film transistor is different, that is, the light effect of the simple liquid crystal at the corner of the slit of the electrode having the slit among the two pixel units adjacent in the column direction
  • the difference is large, resulting in the problem that the two pixel units have horizontal stripes due to the difference in overall liquid crystal light transmittance and transmittance.
  • the present invention provides a pixel structure, a display panel, and a display device capable of making the overall liquid crystal efficacy and transmittance of two pixel units arbitrarily adjacent in the column direction the same to prevent the occurrence of horizontal stripes.
  • the present invention provides the following technical solutions:
  • a pixel structure includes a plurality of pixel units distributed in an array, each of the pixel units including a first electrode, a second electrode, and a thin film transistor, the first electrode having a plate-like structure, and the second electrode having a plurality of a strip electrode and a connecting electrode connecting the strip electrodes, a gap is formed between each adjacent two strip electrodes, and an end of each of the slits facing the thin film transistor forms a corner; wherein In any two adjacent pixel units in each of the plurality of pixel units, the structure of the second electrode in one pixel unit is mirror-symmetrical with respect to the row direction in the structure of the second electrode in the other pixel unit, and wherein The corner direction of the slit of the second electrode faces the aperture ratio of the pixel unit of the thin film transistor is larger than the aperture ratio of the other pixel unit.
  • the structure of the second electrode in one pixel unit and the structure of the second electrode in the other pixel unit are mirror-symmetrical with respect to the row direction.
  • the corner direction of the slit of the second electrode faces the aperture ratio of the pixel unit of the thin film transistor is larger than the aperture ratio of the other pixel unit, that is, the corner direction of the slit of the second electrode of the other pixel unit faces away from the thin film transistor.
  • the overall liquid crystals of the two pixel units In order to prevent the generation of the horizontal stripes, it is necessary to make the overall liquid crystals of the two pixel units arbitrarily adjacent in the column direction in the pixel structure have the same luminous efficacy. Since the overall liquid crystal light effect of the pixel unit is the product of the simple liquid crystal light effect and the pixel aperture ratio, the corner direction of the slit of the second electrode is known on the premise that the simple liquid crystal light effect of each pixel unit is known.
  • the simple liquid crystal of the pixel unit facing the thin film transistor has a small light effect, and in the case where the corner direction of the slit of the second electrode faces away from the simple liquid crystal of the pixel unit of the thin film transistor, the corner of the slit of the second electrode is
  • the aperture ratio of the pixel unit whose direction is toward the thin film transistor is set to be larger than the aperture ratio of the other pixel unit, so that the overall liquid crystal light effect can be achieved. Balance, so that each pixel unit has the same luminous efficacy, thus preventing the occurrence of horizontal stripes.
  • the first electrode is a common electrode
  • the second electrode is a pixel electrode
  • the first electrode is a pixel electrode
  • the second electrode is a common electrode
  • the second electrodes of the pixel units in each row have the same structure, and the first electrodes of the pixel units in each row have the same structure.
  • the present invention also provides a display panel comprising any of the pixel structures provided by the above technical solutions.
  • the display panel comprises an array substrate and an opposite substrate, wherein:
  • the opposite substrate is provided with a black matrix layer to control an aperture ratio of each pixel unit in the pixel structure through an opening provided in the black matrix layer;
  • the array substrate is provided with a black matrix layer to control an aperture ratio of each pixel unit in the pixel structure through an opening provided in the black matrix layer.
  • the present invention also provides a display device, including any of the display panels provided by the above technical solutions.
  • FIG. 1 is a schematic structural diagram of a pixel according to an embodiment of the present invention.
  • FIG. 2 is a liquid crystal light effect simulation diagram of the upper pixel unit of FIG. 1;
  • FIG. 3 is a liquid crystal light effect simulation diagram of the lower pixel unit of FIG. 1.
  • Embodiments of the present invention provide a pixel structure, a display panel, and a display device.
  • the pixel structure includes a plurality of pixel units distributed in an array, each of the pixel units including a first electrode, a second electrode, and a thin film transistor; Among any two adjacent pixel units in each of the columns, wherein the corner direction of the slit of the second electrode faces the pixel unit of the thin film transistor is larger than the pixel of the thin film transistor in the corner direction of the slit of the second electrode The aperture ratio of the unit.
  • the pixel structure enables the overall liquid crystal efficacy and transmittance of the two pixel units arbitrarily adjacent in the column direction to be the same to prevent the occurrence of horizontal stripes.
  • an embodiment of the present invention provides a pixel structure including a plurality of pixel units distributed in an array, such as the first pixel unit 1 shown in FIG. 1 . And a second pixel unit 2, each of the pixel units including a first electrode, a second electrode, and a thin film transistor. Taking the first pixel unit 1 in FIG.
  • the first pixel unit 1 includes a first electrode 11, a second electrode 12, and a thin film transistor 13; the first electrode 11 has a plate-like structure, and the second electrode 12 has a plurality of strips
  • the shape electrode and the connection electrode connecting the strip electrodes form a slit 121 between each adjacent two strip electrodes, and each slit 121 forms a corner toward the end of the thin film transistor 13 side.
  • the second pixel unit 2 includes a first electrode 21, a second electrode 22, and a thin film transistor 23; the second electrode 21 has a plate-like structure, and the second electrode 22 has a plurality of strip electrodes and connection electrodes connecting the strip electrodes, each A slit 221 is formed between the adjacent two strip electrodes, and each slit 221 forms a corner toward the end of the thin film transistor 23 side.
  • the structure of the second electrode 12 in the first pixel unit 1 and the second pixel unit 2 is mirror symmetrical with respect to the row direction.
  • the corner direction of the slit 221 of the second electrode 22 of the second pixel unit 2 faces the thin film transistor 23
  • the corner direction of the slit 121 of the second electrode 12 of the first pixel unit 1 faces away from the thin film transistor 13, and the opening of the second pixel unit 2
  • the rate is larger than the aperture ratio of the first pixel unit 1.
  • the structure of the second electrode 12 in the first pixel unit 1 is The structure of the second electrode 22 in the second pixel unit 2 is mirror-symmetrical with respect to the row direction, and the opening ratio of the corner direction of the slit 221 of the second electrode 22 toward the second pixel unit 2 of the thin film transistor 23 is larger than the opening of the first pixel unit 1. rate.
  • the corner direction of the slit 221 of the second electrode 22 faces the aperture ratio of the second pixel unit 2 of the thin film transistor 23, and the first The aperture ratio of the pixel unit 1 is small; and, when the corner direction of the slit 221 of the second electrode 22 of the second pixel unit 2 faces the thin film transistor 23, the simple liquid crystal light effect at the corner of the slit 221 of the second electrode 22 It is small, and when the corner direction of the slit 121 of the second electrode 12 of the first pixel unit 1 faces away from the thin film transistor 13, the simple liquid crystal at the corner of the slit 121 of the second electrode 12 is large in light efficiency.
  • the overall liquid crystals of the two pixel units In order to prevent the generation of the horizontal stripes, it is necessary to make the overall liquid crystals of the two pixel units arbitrarily adjacent in the column direction in the pixel structure have the same luminous efficacy. Since the overall liquid crystal effect of the pixel unit is the product of the simple liquid crystal light effect and the pixel aperture ratio, the corner of the slit 221 of the second electrode 22 is known on the premise that the simple liquid crystal light effect of each pixel unit is known.
  • the simple liquid crystal having a direction toward the second pixel unit 2 of the thin film transistor 23 is less effective, and the corner direction of the slit 121 of the second electrode 12 is away from the simple liquid crystal of the first pixel unit 1 of the thin film transistor 13
  • the aperture ratio of the slit 221 of the second electrode 22 toward the second pixel unit 2 of the thin film transistor 23 is set to be larger than the aperture ratio of the first pixel unit 1, so that the balance of the overall liquid crystal light effect can be achieved.
  • the pixel units have the same luminous efficacy, thus preventing the occurrence of horizontal stripes.
  • the aperture ratio of each pixel unit in the above pixel structure is achieved as follows.
  • the black matrix layer 14 of the pixel structure is provided with a first opening 141 at a position corresponding to the first pixel unit 1 and a second opening 142 at a position corresponding to the second pixel unit 2;
  • the row direction of the cell, the size of the first opening 141 and the size of the second opening 142 are the same, and the dimension a of the first opening 141 is smaller than the dimension b of the second opening 142 along the column direction of the pixel unit.
  • the opening area of the black matrix layer 14 at a position corresponding to the first pixel unit 1 is smaller than the opening area of the black matrix layer 14 at a position corresponding to the second pixel unit 2, that is, the aperture ratio of the first pixel unit 1 is smaller than The aperture ratio of the two pixel unit 2.
  • the simple liquid crystal light effect simulation diagram of two pixel units adjacent in the column direction in the above pixel structure is shown in FIG. 2 and FIG. 3, the simple liquid crystal light effect of the first pixel unit 1 is as shown in FIG. 2, and the second pixel unit 2 is Simple liquid crystal light effect is shown in Figure 3. 2 and 3, the area of the dark area C of the first pixel unit 1 is smaller than the area of the dark area D of the second pixel unit 2. Therefore, in order to ensure the overall liquid crystal efficacy of the two pixel units is the same, it is necessary to increase the aperture ratio of the second pixel unit 2 so that the product of the simple liquid crystal efficacy and the aperture ratio of the two pixel units are equal.
  • the first electrode may be a common electrode
  • the second electrode may be a pixel electrode.
  • the first electrode 11 can be a common electrode
  • the second electrode 12 can be a pixel electrode.
  • the first electrode may be a pixel electrode
  • the second electrode may be a common electrode.
  • the first electrode 11 may be a pixel electrode
  • the second electrode 12 may be a common electrode.
  • the structure of the second electrode of the pixel unit in each row is the same, and the structure of the first electrode of the pixel unit in each row is the same.
  • the embodiment of the present invention further provides a display panel.
  • the display panel includes any of the pixel structures provided by the foregoing embodiments.
  • the display panel comprises an array substrate and an opposite substrate, wherein:
  • the opposite substrate is provided with a black matrix layer 14 for controlling the aperture ratio of each pixel unit in the pixel structure through the opening provided by the black matrix layer 14;
  • the array substrate is provided with a black matrix layer 14 to control the aperture ratio of each pixel unit in the pixel structure through the opening provided in the black matrix layer 14.
  • the opposite substrate or the array substrate is provided with a black matrix layer 14, and the black matrix layer 14 is provided with openings in each pixel unit.
  • the black matrix layer 14 is provided with a first opening 141 in the first pixel unit 1
  • the black matrix layer 14 is provided with a second opening 142 in the second pixel unit 2.
  • the size of the first opening 141 and the size of the second opening 142 are the same along the row direction of the pixel unit, and the dimension a of the first opening 141 is smaller than the second opening along the column direction of the pixel unit.
  • the size b of the port 142 is provided.
  • the opening area of the black matrix layer 14 in the first pixel unit 1 is smaller than the opening area of the black matrix layer 14 in the second pixel unit 2, that is, the aperture ratio of the first pixel unit 1 is smaller than the opening of the second pixel unit 2. Therefore, the aperture ratio of the first pixel unit 1 can be controlled by the first opening 141 provided in the black matrix layer 14, and the aperture ratio of the second pixel unit 2 can be controlled by the second opening 142 provided in the black matrix layer 14. .
  • the embodiment of the present invention further provides a display device, which includes any display panel provided by the above embodiments, and the display device can be a liquid crystal display.

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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)
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  • Liquid Crystal (AREA)

Abstract

一种像素结构、显示面板及显示装置，该像素结构包括呈阵列分布的多个像素单元，每一个像素单元包括第一电极、第二电极以及薄膜晶体管，每相邻的两个条形电极之间形成一条缝隙，每一条缝隙朝向薄膜晶体管一侧的端部形成拐角；每一列中任意相邻的两个像素单元中，一个像素单元中的第二电极的结构与另一个像素单元中的第二电极的结构关于行方向镜像对称，并且其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率大于另一个像素单元的开口率。该像素结构能够使沿列方向任意相邻的两个像素单元的整体液晶光效和透过率相同，以防止产生横纹。

Description

一种像素结构、显示面板及显示装置
相关申请的交叉引用
本申请要求于2015年9月23日递交中国专利局的、申请号为201510614178.X的中国专利申请的权益，该申请的全部公开内容以引用方式并入本文。
技术领域
本发明涉及显示技术领域，特别涉及一种像素结构、显示面板及显示装置。
背景技术
随着科学技术的进步，液晶显示器在现代生活中有着越来越广泛的应用，如：手机显示屏、电脑显示屏、电视显示屏等。传统的单畴液晶显示器因对比度低、视角不对称、不同角度观看显示画面会出现色偏等缺点，已经不能满足人们对液晶显示器的要求。
现有的液晶显示器可通过双畴液晶显示技术来减轻侧视角色偏。现有的用于实现双畴液晶显示的像素结构中，沿像素单元列方向，每相邻的两个像素单元的开口率相同。由于设置有缝隙的电极中，缝隙的朝向薄膜晶体管的端部的拐角的方向不同，即沿列方向相邻的两个像素单元中，在具有缝隙的电极的缝隙拐角处的单纯液晶的光效差异较大，导致两个像素单元因整体液晶光效及透过率差异大而产生横纹的问题。
发明内容
本发明提供了一种像素结构、显示面板及显示装置，该像素结构能够使沿列方向任意相邻的两个像素单元的整体液晶光效和透过率相同，以防止产生横纹。
为达到上述目的，本发明提供以下技术方案：
一种像素结构，包括呈阵列分布的多个像素单元，每一个所述像素单元包括第一电极、第二电极以及薄膜晶体管，所述第一电极具有板状结构，所述第二电极具有多个条形电极和连接所述各条形电极的连接电极，每相邻的两个条形电极之间形成一条缝隙，每一条所述缝隙的朝向薄膜晶体管一侧的端部形成拐角；其中，在所述多个像素单元的每一列中任意相邻的两个像素单元中，一个像素单元中的第二电极的结构与另一个像素单元中第二电极的结构关于行方向镜像对称，并且其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率大于另一个像素单元的开口率。
上述像素结构的多个像素单元中，每一列中任意相邻的两个像素单元中，一个像素单元中的第二电极的结构与另一个像素单元中第二电极的结构关于行方向镜像对称，并且其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率大于另一个像素单元的开口率，即另一个像素单元的第二电极的缝隙的拐角方向背向薄膜晶体管。通过上述像素结构可知，在每一列中任意相邻的两个像素单元中，其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率较大，而另一个像素单元的开口率较小；并且，当一个像素单元的第二电极的缝隙的拐角方向朝向薄膜晶体管时，在第二电极的缝隙的拐角处的单纯液晶光效较小，而当另一个像素单元的第二电极的缝隙的拐角方向背离薄膜晶体管时，在第二电极的缝隙的拐角处的单纯液晶光效较大。
为了防止横纹的产生，需使像素结构中沿列方向任意相邻的两个像素单元的整体液晶光效相同。由于像素单元的整体液晶光效为单纯液晶光效和像素开口率的乘积，所以，在每个像素单元的单纯液晶光效已知的前提下，即，在其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的单纯液晶光效较小，而其中第二电极的缝隙的拐角方向背离薄膜晶体管的像素单元的单纯液晶光效较大的前提下，将其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率设置成大于另一个像素单元的开口率，可实现整体液晶光效的平 衡，使每个像素单元的光效相同，因此可防止产生横纹。
优选地，在每一个所述像素单元中，所述第一电极为公共电极，并且第二电极为像素电极。
优选地，在每一个所述像素单元中，所述第一电极为像素电极，并且第二电极为公共电极。
优选地，每一行中的像素单元的第二电极的结构相同，且每一行中的像素单元的第一电极的结构相同。
本发明还提供了一种显示面板，包括上述技术方案提供的任意一种像素结构。
优选地，显示面板包括阵列基板和对向基板，其中：
所述对向基板设有黑矩阵层，以通过所述黑矩阵层设有的开口控制所述像素结构内各像素单元的开口率；或者，
所述阵列基板设有黑矩阵层，以通过所述黑矩阵层设有的开口控制所述像素结构内各像素单元的开口率。
另外，本发明还提供了一种显示装置，包括上述技术方案提供的任意一种显示面板。
附图说明
图1为本发明一种实施例提供的像素结构示意图；
图2为图1中的上部像素单元的液晶光效模拟图；
图3为图1中的下部像素单元的液晶光效模拟图。
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，所描述的实施例仅仅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做出创造 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。
本发明实施例提供了一种像素结构、显示面板及显示装置，像素结构包括呈阵列分布的多个像素单元，每一个像素单元包括第一电极、第二电极以及薄膜晶体管；在多个像素单元中的每一列中的任意相邻的两个像素单元中，其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率大于其中第二电极的缝隙的拐角方向背向薄膜晶体管的像素单元的开口率。像素结构能够使沿列方向任意相邻的两个像素单元的整体液晶光效和透过率相同，以防止产生横纹。
其中，请参考图1、图2和图3，本发明一种实施例提供一种像素结构，该像素结构包括呈阵列分布的多个像素单元，如图1中所示的第一像素单元1和第二像素单元2，每个像素单元包括第一电极、第二电极以及薄膜晶体管。以图1中的第一像素单元1为例，第一像素单元1包括第一电极11、第二电极12和薄膜晶体管13；第一电极11具有板状结构，第二电极12具有多个条形电极和连接各条形电极的连接电极，每相邻的两个条形电极之间形成一条缝隙121，每一条缝隙121朝向薄膜晶体管13一侧的端部形成拐角。第二像素单元2包括第一电极21、第二电极22和薄膜晶体管23；第二电极21具有板状结构，第二电极22具有多个条形电极和连接各条形电极的连接电极，每相邻的两个条形电极之间形成一条缝隙221，每一条缝隙221朝向薄膜晶体管23一侧的端部形成拐角。如图1结构所示，在每一列中任意相邻的第一像素单元1和第二像素单元2中，第一像素单元1中的第二电极12的结构与第二像素单元2中的第二电极22的结构关于行方向镜像对称。第二像素单元2的第二电极22的缝隙221的拐角方向朝向薄膜晶体管23，第一像素单元1的第二电极12的缝隙121的拐角方向背离薄膜晶体管13，且第二像素单元2的开口率大于第一像素单元1的开口率。
如图1所示，在上述像素结构的多个像素单元的每一列中任意相邻的第一像素单元1和第二像素单元2中，第一像素单元1中的第二电极12的结构与 第二像素单元2中第二电极22的结构关于行方向镜像对称，并且第二电极22的缝隙221的拐角方向朝向薄膜晶体管23的第二像素单元2的开口率大于第一像素单元1的开口率。通过上述像素结构可知，在每一列中任意相邻的两个像素单元中，其中第二电极22的缝隙221的拐角方向朝向薄膜晶体管23的第二像素单元2的开口率较大，而第一像素单元1的开口率较小；并且，当第二像素单元2的第二电极22的缝隙221的拐角方向朝向薄膜晶体管23时，在第二电极22的缝隙221的拐角处的单纯液晶光效较小，而当第一像素单元1的第二电极12的缝隙121的拐角方向背离薄膜晶体管13时，在第二电极12的缝隙121的拐角处的单纯液晶光效较大。
为了防止横纹的产生，需使像素结构中沿列方向任意相邻的两个像素单元的整体液晶光效相同。由于像素单元整体液晶光效为单纯液晶光效和像素开口率的乘积，所以，在每个像素单元的单纯液晶光效已知的前提下，即，在其中第二电极22的缝隙221的拐角方向朝向薄膜晶体管23的第二像素单元2的单纯液晶光效较小，而其中第二电极12的缝隙121的拐角方向背离薄膜晶体管13的第一像素单元1的单纯液晶光效较大的前提下，将其中第二电极22的缝隙221的拐角方向朝向薄膜晶体管23的第二像素单元2的开口率设置成大于第一像素单元1的开口率，可实现整体液晶光效的平衡，使每个像素单元的光效相同，因此可防止产生横纹。
在一种具体的实施例中，上述像素结构中各像素单元的开口率是通过如下方式实现的。如图1所示，像素结构的黑矩阵层14在与第一像素单元1对应的位置设有第一开口141，并在与第二像素单元2对应的位置设有第二开口142；沿像素单元的行方向，第一开口141的尺寸和第二开口142的尺寸相同，而沿像素单元的列方向，第一开口141的尺寸a小于第二开口142的尺寸b。因此，黑矩阵层14在与第一像素单元1对应的位置的开口面积小于黑矩阵层14在与第二像素单元2对应的位置的开口面积，即，第一像素单元1的开口率小于第二像素单元2的开口率。
上述像素结构中沿列方向相邻的两个像素单元的单纯液晶光效模拟图见图2和图3，第一像素单元1的单纯液晶光效如图2所示，第二像素单元2的单纯液晶光效如图3所示。通过图2和图3可知，第一像素单元1的暗区C的面积比第二像素单元2的暗区D的面积小。因此，为保证两个像素单元的整体液晶光效相同，需增大第二像素单元2的开口率，以使两个像素单元的单纯液晶光效和开口率的乘积相等。
具体地，在每一个像素单元中，第一电极可为公共电极，第二电极可为像素电极。以图1中第一像素单元1为例，第一电极11可为公共电极，第二电极12可为像素电极。
具体地，在每一个像素单元中，第一电极可为像素电极，第二电极可为公共电极。以图1中第一像素单元1为例，第一电极11可为像素电极，第二电极12可为公共电极。
更进一步地，每一行中的像素单元的第二电极的结构相同，且每一行中的像素单元的第一电极的结构相同。
本发明实施例还提供了一种显示面板，如图1所示，该显示面板包括上述实施例提供的任意一种像素结构。
一种优选地实施方式，显示面板包括阵列基板和对向基板，其中：
对向基板设有黑矩阵层14，以通过黑矩阵层14设有的开口控制像素结构内各像素单元的开口率；或者，
阵列基板设有黑矩阵层14，以通过黑矩阵层14设有的开口控制像素结构内各像素单元的开口率。
下面以采用黑矩阵层14的显示面板为例，对向基板或阵列基板设有黑矩阵层14，黑矩阵层14在各像素单元中均设有开口。如图1所示，黑矩阵层14在第一像素单元1中设有第一开口141，黑矩阵层14在第二像素单元2中设有第二开口142。并且，沿像素单元的行方向，第一开口141的尺寸和第二开口142的尺寸相同，而沿像素单元的列方向，第一开口141的尺寸a小于第二开 口142的尺寸b。因此，黑矩阵层14在第一像素单元1中的开口面积小于黑矩阵层14在第二像素单元2中的开口面积，即，第一像素单元1的开口率小于第二像素单元2的开口率，因此，可以通过黑矩阵层14设有的第一开口141控制第一像素单元1的开口率，并且可以通过黑矩阵层14设有的第二开口142控制第二像素单元2的开口率。
另外，本发明实施例还提供了一种显示装置，该显示装置包括上述实施例提供的任意一种显示面板，显示装置可为液晶显示器。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (7)

  1. 一种像素结构，包括呈阵列分布的多个像素单元，每一个所述像素单元包括第一电极、第二电极以及薄膜晶体管，所述第一电极具有板状结构，所述第二电极具有多个条形电极和连接所述各条形电极的连接电极，每相邻的两个条形电极之间形成一条缝隙，每一条所述缝隙的朝向薄膜晶体管一侧的端部形成拐角；其中，在所述多个像素单元的每一列中任意相邻的两个像素单元中，一个像素单元中的第二电极的结构与另一个像素单元中第二电极的结构关于行方向镜像对称，其特征在于，在每一列中的任意相邻的两个像素单元中，其中第二电极的缝隙的拐角方向朝向薄膜晶体管的像素单元的开口率大于另一个像素单元的开口率。
  2. 根据权利要求1所述的像素结构，其特征在于，在每一个所述像素单元中，所述第一电极为公共电极，第二电极为像素电极。
  3. 根据权利要求1所述的像素结构，其特征在于，在每一个所述像素单元中，所述第一电极为像素电极，第二电极为公共电极。
  4. 根据权利要求1-3任一项所述的像素结构，其特征在于，在每一行中的像素单元的第二电极的结构相同，且在每一行中的像素单元的第一电极的结构相同。
  5. 一种显示面板，其特征在于，包括如权利要求1-4任一项所述的像素结构。
  6. 根据权利要求5所述的显示面板，其特征在于，所述显示面板包括阵列基板和对向基板，其中：
    所述对向基板设有黑矩阵层，以通过所述黑矩阵层设有的开口控制所述像素结构内各像素单元的开口率；或者，
    所述阵列基板设有黑矩阵层，以通过所述黑矩阵层设有的开口控制所述像素结构内各像素单元的开口率。
  7. 一种显示装置，其特征在于，包括如权利要求5或6所述的显示面板。
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