WO2019085143A1 - 像素结构及液晶显示面板 - Google Patents

像素结构及液晶显示面板 Download PDF

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Publication number
WO2019085143A1
WO2019085143A1 PCT/CN2017/114791 CN2017114791W WO2019085143A1 WO 2019085143 A1 WO2019085143 A1 WO 2019085143A1 CN 2017114791 W CN2017114791 W CN 2017114791W WO 2019085143 A1 WO2019085143 A1 WO 2019085143A1
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Prior art keywords
longitudinal
pixel
electrode
peripheral portion
extension
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PCT/CN2017/114791
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English (en)
French (fr)
Inventor
叶岩溪
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Priority to US15/745,090 priority Critical patent/US10649285B2/en
Publication of WO2019085143A1 publication Critical patent/WO2019085143A1/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
    • G02F1/136—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
    • G02F1/136213—Storage capacitors associated with the pixel electrode
    • 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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • 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
    • G02F1/13606—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit having means for reducing parasitic capacitance
    • 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
    • G02F1/136218—Shield 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
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a pixel structure and a liquid crystal display panel.
  • Liquid crystal display is one of the most widely used flat panel displays, and its image display has various modes, such as TN (twisted nematic liquid crystal) mode, IPS (In Plane Switching liquid). Crystal, in-plane switching liquid crystal) mode and VA (Vertical Alignment liquid crystal) mode.
  • TN twisted nematic liquid crystal
  • IPS In Plane Switching liquid
  • Crystal in-plane switching liquid crystal
  • VA Very Alignment liquid crystal
  • HVA adopts a light alignment and power-on method to achieve a liquid crystal layer having a certain pretilt angle in the PI surface layer to omit the conventional rubbing orientation.
  • FIG. 1 is a schematic diagram of a pixel structure in the prior art HVA mode.
  • the pixel structure includes a scan line 110 and a data line 120, the scan line 110 and the data line 120 intersecting each other to define a pixel unit, and the pixel unit includes a pixel electrode 200 and a common electrode 140.
  • the pixel electrode 200 includes a main body portion 210 including a first main electrode 211, a second main electrode 212, and a branch electrode 213.
  • the first main electrode 211 is laterally disposed, and the second main electrode 212 is longitudinally disposed. Provided, and the centers of the first trunk electrode 211 and the second trunk electrode 212 are perpendicularly intersected to form four display regions, in each of which a plurality of branch electrodes 213 are disposed, and slits are formed between adjacent branch electrodes 213 .
  • the peripheral portion 220 has a mouth shape, and the peripheral portion 220 connects the ends of the branch electrodes 213.
  • the common electrode 140 is located below the pixel electrode 200, and the common electrode 140 forms a storage capacitor with the pixel electrode 200, and the storage capacitor is used to maintain a voltage on the pixel capacitor to reduce pixel capacitance caused by leakage current. Pressure drop.
  • the prior art proposes to expand the entire pixel electrode of FIG. 1 outward, that is, the peripheral portion is closer to the scan line and the data line, and the length of the branch electrode is increased outward.
  • the pixel electrode and the common electrode are designed. The area of overlap between them increases, thereby increasing the storage capacitance.
  • the pixel electrode is expanded toward the scan line and the data line, the parasitic capacitance between the pixel electrode and the scan line and the data line is increased, thereby causing deterioration of display effect; and, since the pixel electrode is expanded toward the scan line and the data line Bringing the pixel electrode closer to the black matrix on the color filter substrate (the common electrode on the black matrix), so that the liquid crystal between the pixel electrode and the color filter substrate is subjected to the topography of the branch electrode and the topography (slope) of the black matrix The effect is that the pre-deflection of the liquid crystal is disturbed, and the dark lines are easily formed.
  • a technical problem to be solved by embodiments of the present invention is to provide a pixel structure and a liquid crystal display panel. It increases the capacity of the storage capacitor and improves the problem of parasitic capacitance and dark lines.
  • the first aspect of the present invention provides a pixel structure, including:
  • the pixel unit comprising:
  • a pixel electrode including a body portion and a peripheral portion, the peripheral portion being disposed around the body portion and electrically connected to the body portion;
  • a pixel driving device electrically connecting the pixel electrodes to the scan line and the data line, respectively;
  • a common electrode disposed in a different layer structure from the pixel electrode, the common electrode and the pixel electrode forming a storage capacitor, the common electrode including a peripheral portion adjacent to the data line or/and the scan line;
  • the pixel electrode further includes an extending portion outside the peripheral portion, the extending portion is electrically connected to the peripheral portion and a avoidance hole is formed therebetween, and a peripheral portion of the common electrode corresponds to the avoidance hole .
  • the peripheral portion of the common electrode includes a longitudinal portion disposed adjacent to a data line enclosing the pixel unit, the extending portion including a longitudinal extension portion, the longitudinal extension portion and the peripheral portion forming a longitudinal avoidance a hole, the longitudinal portion of the common electrode corresponding to the escape hole.
  • the longitudinal portion includes a first longitudinal portion and a second longitudinal portion, the first longitudinal portion and the second longitudinal portion respectively disposed adjacent to two data lines enclosing the pixel unit;
  • the longitudinal extension portion includes a first longitudinal direction An extension portion and a second longitudinal extension portion, the first longitudinal extension portion and the peripheral portion forming a longitudinal first relief hole, the first longitudinal portion corresponding to the first escape hole, the second longitudinal direction
  • the extension portion forms a longitudinal second relief hole with the peripheral portion, and the second longitudinal portion corresponds to the second escape hole.
  • extension portion further includes a second lateral extension portion connecting the first longitudinal extension portion and the second longitudinal extension portion respectively away from an end of the pixel driving device, the second lateral extension portion and the second lateral extension portion
  • the peripheral portion forms a fourth escape hole in the lateral direction.
  • the peripheral portion of the common electrode includes a first lateral portion disposed adjacent to the pixel driving device, the extending portion including a first lateral extending portion, the first lateral extending portion and the peripheral portion A lateral third relief hole is formed, and the first lateral portion of the common electrode corresponds to the third relief hole.
  • the pixel electrode further comprises a connecting bridge connecting the end of the extending portion and the end of the peripheral portion.
  • the angle between the connecting bridge and the horizontal line is 30° to 60°.
  • the extension portion is composed of an elongated electrode; or the peripheral portion is in a mouth shape.
  • the main body portion of the pixel electrode includes a first main electrode, a second main electrode, and a branch electrode, the first main electrode and the second main electrode intersect perpendicularly, and the branch electrode and the first main electrode Or the second trunk electrode is connected, and a slit is formed between the adjacent branch electrodes.
  • a second aspect of the present invention provides a liquid crystal display panel including the above pixel structure.
  • the pixel electrode further includes an extension located outside the peripheral portion, thereby, since the extension is added, Therefore, the capacity of the storage capacitor formed by the pixel electrode and the common electrode is increased, thereby facilitating the holding of the voltage on the pixel capacitor; and, due to the formation of the escape hole between the extension portion and the peripheral portion, due to the arrangement of the extension portion
  • the parasitic capacitance does not increase much, such as the parasitic capacitance between the pixel electrode and the data line, or the parasitic capacitance between the pixel electrode and the scan line, so that the display effect is better; and, since the branch electrode and the branch electrode are not present at the escape hole
  • the slit between the slits, and thus the pre-deflection of the liquid crystal molecules of the liquid crystal layer above the slit is not easily confused, and it is not easy to form dark lines, so that the display effect is good.
  • FIG. 1 is a schematic view of a prior art pixel structure
  • FIG. 2 is a schematic view of the pixel structure of FIG. 1 with the pixel electrode removed;
  • FIG. 3 is a schematic diagram of a pixel structure in accordance with an embodiment of the present invention.
  • An embodiment of the present invention provides a pixel structure.
  • a scan line 310 and a data line 320 are included.
  • the scan line 310 extends in a lateral direction.
  • the data line 320 extends in a longitudinal direction, and two scan lines 310 and two.
  • the data lines 320 cross each other to define a pixel unit including a pixel electrode 400, a pixel driving device 330, and a common electrode 340.
  • the pixel electrode 400 is composed of an ITO material, and the pixel electrode 400 includes a body portion 410 and a peripheral portion 420, and the body portion 410 includes a first trunk electrode 411, a second trunk electrode 412, and a branch electrode. 413, the first main electrode 411 is disposed longitudinally, the second main electrode 412 is laterally disposed, and the centers of the first main electrode 411 and the second main electrode 412 are perpendicularly intersected to form four display regions (4domain) in each display region.
  • a plurality of branch electrodes 413 are disposed, and the branch electrodes 413 are electrically connected to the first trunk electrodes 411 or the second trunk electrodes 412, and slits are formed between the adjacent branch electrodes 413.
  • the peripheral portion 420 is disposed around the main body portion 410 and electrically connected to the main body portion 410. Specifically, the peripheral portion 420 is in a mouth shape, and the peripheral portion 420 and the outer end of the branch electrode 413 (branch) The inner end of the electrode 413 is electrically connected to the main electrode) to be electrically connected.
  • the pixel electrode 400 forms a pixel capacitance with the liquid crystal layer and the common electrode thereon.
  • the pixel electrode 400 is electrically connected to the scan line 310 and the data line 320 through the pixel driving device 330 (represented by the gate of the pixel driving device in the figure), respectively.
  • the driving device 330 is a thin film transistor.
  • the present invention is not limited thereto, and in other embodiments of the present invention, the pixel driving device may also be a MOS transistor.
  • the common electrode 340 and the pixel electrode 400 are disposed in a different layer structure. Specifically, the common electrode 340 and the scan line 310 are located in the same layer, the pixel electrode 400 is located above the common electrode 340, and the pixel electrode 400 is The common electrodes 340 are separated by a plurality of layers, for example, a gate insulating layer, a semiconductor layer, a flat layer, or the like. Of course, in other embodiments of the present invention, the gate insulating layer, the semiconductor layer, the flat layer, and the color resist layer may be spaced apart (the array substrate at this time is a COA array substrate).
  • the common electrode 340 and the pixel electrode 400 form a storage capacitor for maintaining a voltage on the pixel capacitor, thereby reducing a voltage drop of the pixel capacitor due to leakage current.
  • the common electrode 340 includes a peripheral portion that is disposed adjacent to the data line 320 or/and the scan line 310.
  • the pixel electrode 400 further includes an extending portion 430 located outside the peripheral portion 420.
  • the extending portion 430 is a lip-shaped type.
  • the extension portion 430 and the peripheral portion 420 form a retro-shaped shape, wherein the extension portion 430 is an outer lip-shaped type, and the peripheral portion 420 is an inner lip-shaped type.
  • the extension portion 430 is electrically connected to the peripheral portion 420.
  • the escape hole 350 is formed between the extending portion 430 and the peripheral portion 420, and the peripheral portion of the common electrode 340 corresponds to the escape hole 350.
  • the corresponding portion refers to the periphery of the common electrode 340.
  • the projection of the portion in the horizontal plane is in the projection of the relief aperture 350 in the horizontal plane, and most of the area refers to the area of the peripheral portion that is more than 60% of the projection of the horizontal plane in the projection of the relief aperture 350 in the horizontal plane.
  • the peripheral portion is of a " ⁇ " type.
  • the pixel electrode 400 further includes an extension portion 430 located outside the peripheral portion 420, the capacity of the storage capacitor formed by the pixel electrode 400 and the common electrode 340 is increased due to the addition of the extension portion 430, thereby facilitating the voltage on the pixel capacitance. Moreover, since the escape hole 350 is formed between the extending portion 430 and the peripheral portion 420, the parasitic capacitance due to the arrangement of the extending portion 430 does not increase much, for example, parasitic between the pixel electrode 400 and the data line 320.
  • the capacitance, or the parasitic capacitance between the pixel electrode 400 and the scan line 310, is much smaller than the parasitic capacitance increased by the improvement scheme in the background art, thereby comparing the display effects; moreover, since the branch electrode 413 and the branch electrode are not present at the escape hole 350 The slit between the 413, and thus, the pre-deflection of the liquid crystal molecules of the liquid crystal layer above the slit is not easily confused, and it is not easy to form dark lines, so that the display effect is good.
  • the extending portion 430 includes a longitudinal extending portion, the longitudinal extending portion is parallel to the data line 320, the longitudinal extending portion and the peripheral portion 420 form a longitudinal escape hole, and the longitudinal escape hole 350 is elongated. shape.
  • the peripheral portion of the common electrode 340 includes a longitudinal portion that is parallel to the data line 320, the longitudinal portion corresponding to the longitudinal relief hole 350.
  • the longitudinal extension portion includes a first longitudinal extension portion 431 and a second longitudinal extension portion 432, the first longitudinal extension portion 431 being disposed adjacent to the data line 320 on the right side in FIG.
  • the second longitudinal extension 432 is disposed adjacent to the data line 320 on the left side of FIG. 3, and the first longitudinal extension 431 forms a longitudinal first relief hole 351 with the peripheral portion 420, the second longitudinal extension The second portion 432 forms a longitudinal second relief hole 352 with the peripheral portion 420.
  • the longitudinal portion of the common electrode 340 includes a first longitudinal portion 341 and a second longitudinal portion 342 disposed adjacent to the data line 320 on the right side in FIG.
  • the data line 320 on the left side of FIG. 3 is disposed.
  • the left data line 320 and the right data line 320 in FIG. 3 are respectively used to enclose a pixel unit, and the first longitudinal portion 341 is opposite to the first escape hole 351.
  • the second longitudinal portion 342 and the The second avoidance holes 352 correspond to each other.
  • the longitudinal extension may also include only the first longitudinal extension or the second longitudinal extension.
  • the longitudinal portion may also include only the first longitudinal portion or the second longitudinal portion.
  • the extending portion 430 includes a laterally extending portion that is parallel to the scanning line 310, and the laterally extending portion forms a lateral relief hole 350 with the peripheral portion 420.
  • the peripheral portion of the common electrode 340 includes a lateral portion, and a lateral portion of the common electrode 340 corresponds to the escape hole 353. Additionally, in other embodiments of the invention, the extension may also not include a lateral extension.
  • the lateral extension includes a first lateral extension 433 and a second lateral extension 434, the first lateral extension 433 connecting the first longitudinal extension 431 and the second longitudinal extension
  • the portion 432 is adjacent to one end of the pixel driving device 330, which is a lower end in FIG. 3, and the second lateral extending portion 434 connects the first longitudinal extending portion 431 and the second longitudinal extending portion 432 away from the end of the pixel driving device 330, which is shown in FIG.
  • the upper end, the first lateral extension 433 and the second lateral extension 434 are parallel to the scan line 310.
  • the first laterally extending portion 433 and the peripheral portion 420 form a third lateral relief hole 353, and the second laterally extending portion 434 and the peripheral portion 420 form a fourth lateral relief hole 354.
  • the peripheral portion of the common electrode 340 includes a first lateral portion 343 disposed adjacent to the pixel driving device 330, the first lateral portion 343 connecting the first longitudinal portion 341 and the second longitudinal portion The portion 342 is adjacent to one end of the pixel driving device 330, and is a lower end in FIG. 3, and the first lateral portion 343 of the common electrode 340 corresponds to the third escape hole 353.
  • the second lateral portion corresponding to the fourth escape hole 354 is not included in the peripheral portion of the common electrode 340.
  • the second lateral portion corresponding to the fourth escape hole may be further included in the peripheral portion of the common electrode.
  • the lateral extension may not include the second lateral extension.
  • the extending portion 430 is in the shape of a mouth, specifically, the first lateral extending portion 433, the second lateral extending portion 434, the first longitudinal extending portion 431, and the second longitudinal extending portion 432 are connected end to end. Font type.
  • the peripheral portion 420 is in the shape of a mouth.
  • the peripheral portion 420 includes a first lateral peripheral portion 423, a second lateral peripheral portion 424, a first longitudinal peripheral portion 421, and a second longitudinal direction.
  • the peripheral portion 422, the first lateral peripheral portion 423, the second lateral peripheral portion 424, the first longitudinal peripheral portion 421, and the second longitudinal peripheral portion 422 are connected end to end to form a lip shape.
  • first A first escape hole 351 is formed between the longitudinal peripheral portion 421 and the first longitudinal extension portion 431, and a second escape hole 352 is formed between the second longitudinal peripheral portion 422 and the second longitudinal extension portion 432, the first lateral periphery A third relief hole 353 is formed between the portion 423 and the first lateral extension portion 433 , and a fourth relief hole 354 is formed between the second lateral peripheral portion 424 and the second lateral extension portion 434 .
  • the pixel electrode 400 further includes a connection bridge 360, and the connection bridge 360 connects the end of the extension portion 430.
  • the ends of the portion and the peripheral portion 420, specifically, the number of the connecting bridges 360 are four, and the connecting bridges 360 electrically connect the first longitudinal peripheral portion 421 and the upper and lower ends of the first longitudinal extending portion 431, respectively.
  • the connecting bridge 360 is connected to the four corners of the back shape.
  • the angle between the connecting bridge 360 and the horizontal line is 30°-60 degrees, for example, 30°, 35°, 40°, 45°, 50°, 55°, 60°, and the like.
  • the connecting bridge 360 since the connecting bridge 360 connects the end of the extending portion 430 and the end portion of the peripheral portion 420, the number of the connecting bridges 360 is small, so that the connecting bridge 360 has a limited influence on the liquid crystal molecules thereon, and The bridge 360 is relatively evenly disposed between the extension 430 and the peripheral portion 420 such that the voltage across the extension 430 and the peripheral portion 420 is also relatively uniform.
  • the extension portion 430 and the peripheral portion 420 are each formed of an elongated electrode, that is, a first longitudinal peripheral portion 421, a first longitudinally extending portion 431, and a second longitudinal peripheral portion 422,
  • the two longitudinally extending portions 432, the first lateral peripheral portion 423, the first laterally extending portion 433, the second lateral peripheral portion 424, and the second laterally extending portion 434 are each formed of an elongated electrode, and the elongated electrode includes a hole.
  • the number is 0, that is, the slit-shaped electrode does not include a slit, so that the elongated electrode does not have a large influence on the pre-bias of the liquid crystal molecules thereon.
  • an embodiment of the present invention provides a liquid crystal display panel including an array substrate, a filter substrate, and a liquid crystal layer sandwiched therebetween, the array substrate including the above pixel structure, the array
  • the substrate is a COA (Color Filter on Array) type array substrate.
  • the array substrate may be a conventional array substrate.
  • the filter substrate includes an upper substrate, a black matrix, and a common electrode, the black matrix is formed on the upper substrate, the common electrode is formed on the upper substrate and the black matrix, and the black matrix is elongated
  • the side surface of the black matrix is a sloped surface.
  • the present invention has the following advantages:
  • the pixel electrode further includes an extension portion located outside the peripheral portion, the capacity of the storage capacitor formed by the pixel electrode and the common electrode is increased due to the addition of the extension portion, thereby facilitating the voltage holding on the pixel capacitance;
  • a relief hole is formed between the extension portion and the peripheral portion, so that the parasitic capacitance due to the arrangement of the extension portion does not increase much, such as parasitic capacitance between the pixel electrode and the data line, or parasitic between the pixel electrode and the scan line Capacitance, so that the display effect is better; and, since there is no slit between the branch electrode and the branch electrode at the avoidance hole, the pre-deflection of the liquid crystal molecules of the liquid crystal layer above the slit is not easily confused, and it is not easy to form dark lines. , so that the display is better.

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Abstract

一种像素结构及液晶显示面板，像素结构包括：扫描线（310）、数据线（320），数据线（320）和扫描线（310）相互交叉限定像素单元，像素单元包括：像素电极（400），其包括主体部（410）和周边部（420），周边部（420）环绕主体部（410）设置且与主体部（410）电连接；还包括像素驱动器件，公共电极（340）与像素电极（400）呈异层结构设置，公共电极（340）与像素电极（400）形成存储电容，公共电极（340）包括邻近数据线（320）和/或扫描线（310）的外围部；像素电极（400）还包括位于周边部（420）外侧的延伸部（430），延伸部（430）与周边部（420）电连接且两者之间形成避让孔，公共电极（340）的外围部与避让孔相对应。具有提高存储电容的容量且改善寄生电容和暗纹的优点。

Description

像素结构及液晶显示面板
本发明要求2017年11月02日递交的发明名称为“像素结构及液晶显示面板”的申请号201711066159.3的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及显示技术领域，特别是涉及一种像素结构及液晶显示面板。
背景技术
液晶显示器(LCD，liquid Crystal Display)是最广泛使用的平板显示器之一，实现其图像显示有多种模式，如TN(twisted nematic liquid crystal，扭曲向列型液晶)模式、IPS(In Plane Switching liquid crystal，平面内切换液晶)模式以及VA(Vertical Alignment liquid crystal，垂直排列液晶)模式。
HVA作为VA模式中的一种分支模式，其采用光配向加电的方式，实现在PI表层固化出具有一定预倾角的液晶层，以省略传统摩擦取向。
为实现液晶显示的广视角，HVA模式中的像素电极采用多区域(Muti-Domain)的结构，图1为现有技术HVA模式中像素结构的示意图。如图1和图2所示，像素结构包括扫描线110和数据线120，所述扫描线110和所述数据线120相互交叉限定像素单元，所述像素单元包括像素电极200和公共电极140，所述像素电极200包括主体部210和周边部220，所述主体部210包括第一主干电极211、第二主干电极212和分支电极213，第一主干电极211横向设置，第二主干电极212纵向设置，并且第一主干电极211和第二主干电极212的中心垂直相交，以形成四个显示区域，在每个显示区域中设置有多条分支电极213，相邻分支电极213之间形成狭缝。所述周边部220呈口字型，所述周边部220连接所述分支电极213的末端。所述公共电极140位于所述像素电极200的下方，所述公共电极140与所述像素电极200形成存储电容，所述存储电容用于保持像素电容上的电压，减轻由于漏电流而引起像素电容的压降。
然而，上述的像素结构中，由于像素电极与公共电极之间重叠区域比较小，从而导致存储电容比较小，存储电容保持像素电容上电压的效果有限。为了改善该技术问题，现有技术提出了将图1中的像素电极整体往外扩张，也即周边部更加靠近扫描线和数据线，分支电极的长度向外增加，这样设计，像素电极与公共电极之间的重叠面积增加了，从而增加了存储电容。然而，由于像素电极往扫描线和数据线处扩张，导致像素电极与扫描线、数据线之间的寄生电容增加，从而造成显示效果变差；而且，由于像素电极往扫描线和数据线处扩张，使像素电极更靠近彩色滤光片基板上的黑色矩阵(黑色矩阵上面有共通电极)，从而像素电极与彩色滤光片基板之间液晶受到分支电极的地形和黑色矩阵的地形(斜坡)的影响，造成液晶的预偏转混乱，容易形成暗纹。
发明内容
本发明实施例所要解决的技术问题在于，提供一种像素结构及液晶显示面板。可提高存储电容的容量且改善寄生电容和暗纹的问题。
为了解决上述技术问题，本发明第一方面实施例提供了一种像素结构，包括：
扫描线，其沿横向延伸；
数据线，其沿纵向延伸，所述数据线和所述扫描线相互交叉限定像素单元，所述像素单元包括：
像素电极，其包括主体部和周边部，所述周边部环绕所述主体部设置且与所述主体部电连接；
像素驱动器件，其将所述像素电极分别电连接至所述扫描线和所述数据线；
公共电极，其与所述像素电极呈异层结构设置，所述公共电极与所述像素电极形成存储电容，所述公共电极包括邻近所述数据线或/和所述扫描线的外围部；其中，
所述像素电极还包括位于所述周边部外侧的延伸部，所述延伸部与所述周边部电连接且两者之间形成避让孔，所述公共电极的外围部与所述避让孔相对应。
其中，所述公共电极的外围部包括纵向部，所述纵向部邻近围成像素单元的数据线设置，所述延伸部包括纵向延伸部，所述纵向延伸部与所述周边部形成纵向的避让孔，所述公共电极的纵向部与所述避让孔相对应。
其中，所述纵向部包括第一纵向部和第二纵向部，所述第一纵向部和第二纵向部分别邻近围成像素单元的两条数据线设置；所述纵向延伸部包括第一纵向延伸部和第二纵向延伸部，所述第一纵向延伸部与所述周边部形成纵向的第一避让孔，所述第一纵向部与所述第一避让孔相对应，所述第二纵向延伸部与所述周边部形成纵向的第二避让孔，所述第二纵向部与所述第二避让孔相对应。
其中，所述延伸部还包括第二横向延伸部，所述第二横向延伸部分别连接第一纵向延伸部和第二纵向延伸部远离像素驱动器件的一端，所述第二横向延伸部与所述周边部形成横向的第四避让孔。
其中，所述公共电极的外围部包括第一横向部，所述第一横向部邻近像素驱动器件设置，所述延伸部包括第一横向延伸部，所述第一横向延伸部与所述周边部形成横向的第三避让孔，所述公共电极的第一横向部与所述第三避让孔相对应。
其中，所述像素电极还包括连接桥，所述连接桥连接延伸部的端部与所述周边部的端部。
其中，所述连接桥与水平线之间的夹角为30°～60°。
其中，所述延伸部由长条形的电极构成；或者所述周边部呈口字型。
其中，所述像素电极的主体部包括第一主干电极、第二主干电极和分支电极，所述第一主干电极和所述第二主干电极垂直相交，所述分支电极与所述第一主干电极或者第二主干电极连接，相邻所述分支电极之间形成狭缝。
本发明第二方面实施例提供了一种液晶显示面板，包括上述的像素结构。
实施本发明实施例，具有如下有益效果：
由于像素电极还包括位于周边部外侧的延伸部，从而，由于增加了延伸部， 从而像素电极与公共电极形成的存储电容的容量得到增加，从而有利于像素电容上的电压的保持；而且，由于延伸部与周边部之间形成避让孔，从而，由于延伸部的设置而导致的寄生电容不会增加很多，例如像素电极与数据线之间的寄生电容，或者像素电极与扫描线之间的寄生电容，从而显示效果比较好；而且，由于避让孔处不存在分支电极以及分支电极之间的狭缝，从而，狭缝上方的液晶层的液晶分子的预偏转不容易混乱，不容易形成暗纹，从而显示效果较好。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术像素结构的示意图；
图2是图1的像素结构去掉像素电极后的示意图；
图3是本发明一实施例像素结构的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本申请说明书、权利要求书和附图中出现的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，术语“第一”、“第二”和“第三”等是用于区别不同的对象，而并非用于描述特定的顺序。
本发明实施例提供一种像素结构，请参见图3，包括扫描线310和数据线320，所述扫描线310沿横向延伸，所述数据线320沿纵向延伸，两条扫描线310与两条数据线320相互交叉限定像素单元，所述像素单元包括像素电极400、像素驱动器件330和公共电极340。
在本实施例中，所述像素电极400由ITO材料构成，所述像素电极400包括主体部410和周边部420，所述主体部410包括第一主干电极411、第二主干电极412和分支电极413，第一主干电极411纵向设置，第二主干电极412横向设置，并且第一主干电极411和第二主干电极412的中心垂直相交，以形成四个显示区域(4domain)，在每个显示区域中设置有多条分支电极413，分支电极413与第一主干电极411或第二主干电极412电连接，相邻分支电极413之间形成狭缝。在本实施例中，所述周边部420环绕所述主体部410设置且与主体部410电连接，具体说来，周边部420呈口字型，周边部420与分支电极413的外端(分支电极413的内端与主干电极电连接)电连接。在本实施例中，像素电极400与其上的液晶层、共通电极形成像素电容。
在本实施例中，所述像素电极400通过所述像素驱动器件330(在图中以像素驱动器件的栅极表示)分别电连接至所述扫描线310和所述数据线320，所述像素驱动器件330为薄膜晶体管。但本发明不限于此，在本发明的其他实施例中，像素驱动器件还可以为MOS管。
在本实施例中，公共电极340与像素电极400呈异层结构设置，具体说来，公共电极340与扫描线310位于同一层，所述像素电极400位于公共电极340的上方，像素电极400与公共电极340之间间隔多层，例如间隔栅极绝缘层、半导体层、平坦层等。当然，在本发明的其他实施例中，还可以间隔栅极绝缘层、半导体层、平坦层、色阻层(此时的阵列基板为COA阵列基板)。在本实施例中，所述公共电极340与所述像素电极400形成存储电容，存储电容用于保持像素电容上的电压，减轻由于漏电流而引起像素电容的压降。在本实施例中，所述公共电极340包括外围部，所述外围部邻近数据线320或/和扫描线310设置。
为了增加存储电容的容量，在本实施例中，像素电极400还包括位于所述周边部420外侧的延伸部430，在本实施例中，所述延伸部430呈口字型，延 伸部430与所述周边部420形成回字型，其中延伸部430为外面的口字型，周边部420为内部的口字型。延伸部430与所述周边部420电连接。在本实施例中，延伸部430与周边部420两者之间形成避让孔350，公共电极340的外围部与所述避让孔350相对应，这此处，相对应是指公共电极340的外围部在水平面的投影的大部分位于避让孔350在水平面的投影中，大部分是指外围部在水平面的投影的60％以上的面积位于避让孔350在水平面的投影中。在本实施例中，所述外围部呈“ㄇ”型。
由于像素电极400还包括位于周边部420外侧的延伸部430，从而，由于增加了延伸部430，从而像素电极400与公共电极340形成的存储电容的容量得到增加，从而有利于像素电容上的电压的保持；而且，由于延伸部430与周边部420之间形成避让孔350，从而，由于延伸部430的设置而导致的寄生电容不会增加很多，例如像素电极400与数据线320之间的寄生电容，或者像素电极400与扫描线310之间的寄生电容，比背景技术中的改善方案增加的寄生电容小很多，从而显示效果比较；而且，由于避让孔350处不存在分支电极413以及分支电极413之间的狭缝，从而，狭缝上方的液晶层的液晶分子的预偏转不容易混乱，不容易形成暗纹，从而显示效果较好。
在本实施例中，所述延伸部430包括纵向延伸部，所述纵向延伸部与数据线320平行，纵向延伸部与所述周边部420形成纵向的避让孔，纵向的避让孔350呈长条形。所述公共电极340的外围部包括纵向部，所述纵向部与所述数据线320平行，所述纵向部与纵向的避让孔350相对应。
具体说来，在本实施例中，所述纵向延伸部包括第一纵向延伸部431和第二纵向延伸部432，所述第一纵向延伸部431邻近图3中右侧的数据线320设置，所述第二纵向延伸部432邻近图3中左侧的数据线320设置，所述第一纵向延伸部431与所述周边部420形成纵向的第一避让孔351，所述第二纵向延伸部432与周边部420形成纵向的第二避让孔352。在本实施例中，公共电极340的纵向部包括第一纵向部341和第二纵向部342，所述第一纵向部341邻近图3中右侧的数据线320设置，第二纵向部342邻近图3中左侧的数据线320设置，图3中左侧数据线320和右侧的数据线320分别用于围成像素单元，所述第一纵向部341与所述第一避让孔351相对应，所述第二纵向部342与所 述第二避让孔352相对应。在本发明的其他实施例中，纵向延伸部还可以只包括第一纵向延伸部或者第二纵向延伸部。在本发明的其他实施例中，纵向部还可以只包括第一纵向部或第二纵向部。
在本实施例中，所述延伸部430包括横向延伸部，横向延伸部与扫描线310平行，横向延伸部与所说周边部420形成横向的避让孔350。所述公共电极340的外围部包括横向部，公共电极340的横向部与所述避让孔353相对应。另外，在本发明的其他实施例中，延伸部还可以不包括横向延伸部。
具体说来，在本实施例中，所述横向延伸部包括第一横向延伸部433和第二横向延伸部434，所述第一横向延伸部433连接第一纵向延伸部431和第二纵向延伸部432靠近像素驱动器件330的一端，在图3中为下端，第二横向延伸部434连接第一纵向延伸部431和第二纵向延伸部432远离像素驱动器件330的一端，在图3中为上端，所述第一横向延伸部433与所述第二横向延伸部434与扫描线310平行。在本实施例中，第一横向延伸部433与所说周边部420形成横向的第三避让孔353，第二横向延伸部434与周边部420形成横向的第四避让孔354。在本实施例中，所述公共电极340的外围部包括第一横向部343，第一横向部343邻近像素驱动器件330设置，所述第一横向部343连接第一纵向部341和第二纵向部342邻近像素驱动器件330的一端，在图3中为下端，公共电极340的第一横向部343与所述第三避让孔353相对应。在本实施例中，公共电极340的外围部中不包括对应第四避让孔354的第二横向部。当然，在本发明的其他实施例中，为了增大存储电容，公共电极的外围部中还可以包括对应第四避让孔的第二横向部。另外，在本发明的其他实施例中，由于公共电极不具有第二横向部，从而所述横向延伸部还可以不包括第二横向延伸部。在本实施例中，所述延伸部430呈口字型，具体为第一横向延伸部433、第二横向延伸部434、第一纵向延伸部431、第二纵向延伸部432首尾相接形成口字型。
在本实施例中，所述周边部420呈口字型，具体说来，所述周边部420包括第一横向周边部423、第二横向周边部424、第一纵向周边部421、第二纵向周边部422，第一横向周边部423、第二横向周边部424、第一纵向周边部421、第二纵向周边部422首尾相连形成口字型。在本实施例中，所述第一 纵向周边部421与第一纵向延伸部431之间形成第一避让孔351，所述第二纵向周边部422与第二纵向延伸部432之间形成第二避让孔352，所述第一横向周边部423与第一横向延伸部433之间形成第三避让孔353，所述第二横向周边部424与第二横向延伸部434之间形成第四避让孔354。
为了使延伸部430与像素电极400的周边部420电连接，使两者上面的电压相同，在本实施例中，所述像素电极400还包括连接桥360，连接桥360连接延伸部430的端部和周边部420的端部，具体说来，连接桥360的数目为4个，连接桥360分别电连接第一纵向周边部421与第一纵向延伸部431的上端、下端。在本实施例中，由于周边部420与延伸部430一起呈回字形，所述连接桥360连接回字形的四个转角处。在本实施例中，所述连接桥360与水平线之间的夹角为30°-60度，例如为30°、35°、40°、45°、50°、55°、60°等。在本实施例中，由于连接桥360连接延伸部430的端部与周边部420的端部，从而连接桥360数目较少，从而连接桥360对其上的液晶分子的影响有限，而且，连接桥360是比较均匀的布置在延伸部430与周边部420之间，从而延伸部430与周边部420上的电压也比较均匀。
在本实施例中，所述延伸部430和所述周边部420均由长条形的电极构成，也即第一纵向周边部421、第一纵向延伸部431、第二纵向周边部422、第二纵向延伸部432、第一横向周边部423、第一横向延伸部433、第二横向周边部424、第二横向延伸部434均由长条形的电极构成，长条形的电极包括孔洞的数量为0，也即长条形的电极上不包括狭缝，从而，长条形的电极不会对其上的液晶分子的预偏不会产生较大的影响。
另外，本发明的实施例提供一种液晶显示面板，所述液晶面板包括阵列基板、滤光片基板和夹在两者之间的液晶层，所述阵列基板包括上述的像素结构，所述阵列基板为COA(Color Filter on array)型阵列基板。在本发明的其他实施例只用，阵列基板还可以为常规的阵列基板。在本实施例中，滤光片基板包括上基板、黑色矩阵和共通电极，所述黑色矩阵形成在上基板上，所述共通电极形成在上基板和黑色矩阵上，所述黑色矩阵呈长条形，所述黑色矩阵的侧面为斜面，当液晶层夹在阵列基板和滤光片基板时，黑色矩阵的侧面会对其下的液晶分子产生预偏的影响。
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
通过上述实施例的描述，本发明具有以下优点：
由于像素电极还包括位于周边部外侧的延伸部，从而，由于增加了延伸部，从而像素电极与公共电极形成的存储电容的容量得到增加，从而有利于像素电容上的电压的保持；而且，由于延伸部与周边部之间形成避让孔，从而，由于延伸部的设置而导致的寄生电容不会增加很多，例如像素电极与数据线之间的寄生电容，或者像素电极与扫描线之间的寄生电容，从而显示效果比较好；而且，由于避让孔处不存在分支电极以及分支电极之间的狭缝，从而，狭缝上方的液晶层的液晶分子的预偏转不容易混乱，不容易形成暗纹，从而显示效果较好。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (20)

  1. 一种像素结构，其中，包括：
    扫描线，其沿横向延伸；
    数据线，其沿纵向延伸，所述数据线和所述扫描线相互交叉限定像素单元，所述像素单元包括：
    像素电极，其包括主体部和周边部，所述周边部环绕所述主体部设置且与所述主体部电连接；
    像素驱动器件，其将所述像素电极电连接至所述扫描线和所述数据线；
    公共电极，其与所述像素电极呈异层结构设置，所述公共电极与所述像素电极形成存储电容，所述公共电极包括邻近所述数据线或/和所述扫描线的外围部；其中，
    所述像素电极还包括位于所述周边部外侧的延伸部，所述延伸部与所述周边部电连接且两者之间形成避让孔，所述公共电极的外围部与所述避让孔相对应。
  2. 如权利要求1所述的像素结构，其中，所述公共电极的外围部包括纵向部，所述纵向部邻近围成像素单元的数据线设置，所述延伸部包括纵向延伸部，所述纵向延伸部与所述周边部形成纵向的避让孔，所述公共电极的纵向部与所述避让孔相对应。
  3. 如权利要求2所述的像素结构，其中，所述纵向部包括第一纵向部和第二纵向部，所述第一纵向部和第二纵向部分别邻近围成像素单元的两条数据线设置；所述纵向延伸部包括第一纵向延伸部和第二纵向延伸部，所述第一纵向延伸部与所述周边部形成纵向的第一避让孔，所述第一纵向部与所述第一避让孔相对应，所述第二纵向延伸部与所述周边部形成纵向的第二避让孔，所述第二纵向部与所述第二避让孔相对应。
  4. 如权利要求3所述的像素结构，其中，所述延伸部还包括第二横向延 伸部，所述第二横向延伸部分别连接第一纵向延伸部和第二纵向延伸部远离像素驱动器件的一端，所述第二横向延伸部与所述周边部形成横向的第四避让孔。
  5. 如权利要求3所述的像素结构，其中，所述公共电极的外围部包括第一横向部，所述第一横向部邻近像素驱动器件设置，所述延伸部包括第一横向延伸部，所述第一横向延伸部与所述周边部形成横向的第三避让孔，所述公共电极的第一横向部与所述第三避让孔相对应。
  6. 如权利要求1所述的像素结构，其中，所述像素电极还包括连接桥，所述连接桥连接延伸部的端部与所述周边部的端部。
  7. 如权利要求2所述的像素结构，其中，所述像素电极还包括连接桥，所述连接桥连接延伸部的端部与所述周边部的端部。
  8. 如权利要求6所述的像素结构，其中，所述连接桥与水平线之间的夹角为30°～60°。
  9. 如权利要求1任意一项所述的像素结构，其中，所述延伸部由长条形的电极构成；或者所述周边部呈口字型。
  10. 如权利要求1任意一项所述的像素结构，其中，所述像素电极的主体部包括第一主干电极、第二主干电极和分支电极，所述第一主干电极和所述第二主干电极垂直相交，所述分支电极与所述第一主干电极或者第二主干电极连接，相邻所述分支电极之间形成狭缝。
  11. 一种液晶显示面板，其中，包括像素结构，所述像素结构包括：
    扫描线，其沿横向延伸；
    数据线，其沿纵向延伸，所述数据线和所述扫描线相互交叉限定像素单元， 所述像素单元包括：
    像素电极，其包括主体部和周边部，所述周边部环绕所述主体部设置且与所述主体部电连接；
    像素驱动器件，其将所述像素电极电连接至所述扫描线和所述数据线；
    公共电极，其与所述像素电极呈异层结构设置，所述公共电极与所述像素电极形成存储电容，所述公共电极包括邻近所述数据线或/和所述扫描线的外围部；其中，
    所述像素电极还包括位于所述周边部外侧的延伸部，所述延伸部与所述周边部电连接且两者之间形成避让孔，所述公共电极的外围部与所述避让孔相对应。
  12. 如权利要求11所述的液晶显示面板，其中，所述公共电极的外围部包括纵向部，所述纵向部邻近围成像素单元的数据线设置，所述延伸部包括纵向延伸部，所述纵向延伸部与所述周边部形成纵向的避让孔，所述公共电极的纵向部与所述避让孔相对应。
  13. 如权利要求12所述的液晶显示面板，其中，所述纵向部包括第一纵向部和第二纵向部，所述第一纵向部和第二纵向部分别邻近围成像素单元的两条数据线设置；所述纵向延伸部包括第一纵向延伸部和第二纵向延伸部，所述第一纵向延伸部与所述周边部形成纵向的第一避让孔，所述第一纵向部与所述第一避让孔相对应，所述第二纵向延伸部与所述周边部形成纵向的第二避让孔，所述第二纵向部与所述第二避让孔相对应。
  14. 如权利要求13所述的液晶显示面板，其中，所述延伸部还包括第二横向延伸部，所述第二横向延伸部分别连接第一纵向延伸部和第二纵向延伸部远离像素驱动器件的一端，所述第二横向延伸部与所述周边部形成横向的第四避让孔。
  15. 如权利要求13所述的液晶显示面板，其中，所述公共电极的外围部 包括第一横向部，所述第一横向部邻近像素驱动器件设置，所述延伸部包括第一横向延伸部，所述第一横向延伸部与所述周边部形成横向的第三避让孔，所述公共电极的第一横向部与所述第三避让孔相对应。
  16. 如权利要求11所述的液晶显示面板，其中，所述像素电极还包括连接桥，所述连接桥连接延伸部的端部与所述周边部的端部。
  17. 如权利要求12所述的液晶显示面板，其中，所述像素电极还包括连接桥，所述连接桥连接延伸部的端部与所述周边部的端部。
  18. 如权利要求16所述的液晶显示面板，其中，所述连接桥与水平线之间的夹角为30°～60°。
  19. 如权利要求11任意一项所述的液晶显示面板，其中，所述延伸部由长条形的电极构成；或者所述周边部呈口字型。
  20. 如权利要求11任意一项所述的液晶显示面板，其中，所述像素电极的主体部包括第一主干电极、第二主干电极和分支电极，所述第一主干电极和所述第二主干电极垂直相交，所述分支电极与所述第一主干电极或者第二主干电极连接，相邻所述分支电极之间形成狭缝。
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