WO2016206155A1 - 像素电极及液晶显示面板 - Google Patents

像素电极及液晶显示面板 Download PDF

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WO2016206155A1
WO2016206155A1 PCT/CN2015/085090 CN2015085090W WO2016206155A1 WO 2016206155 A1 WO2016206155 A1 WO 2016206155A1 CN 2015085090 W CN2015085090 W CN 2015085090W WO 2016206155 A1 WO2016206155 A1 WO 2016206155A1
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electrode
region
segment
trunk
branch
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English (en)
French (fr)
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钟新辉
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/777,743 priority Critical patent/US9857637B2/en
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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
    • G02F1/134327—Segmented, e.g. alpha numeric display
    • 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
    • G02F1/1343—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
    • G02F1/136286—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
    • 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
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a pixel electrode and a liquid crystal display panel.
  • TFT-LCD Active Thin Film Transistor-LCD
  • TN Twisted Nematic
  • STN Super Twisted Nematic
  • IPS In -Plane Switching
  • VA Vertical Alignment
  • the VA type liquid crystal display has a very high contrast ratio compared with other kinds of liquid crystal displays, generally reaching 4000-8000, and has a very wide application in large-size display, such as television.
  • the reason why the VA type liquid crystal display panel has a very high contrast is because the liquid crystal molecules are arranged perpendicular to the surface of the substrate in the uncharged dark state, and no phase difference is generated, the light leakage is extremely low, and the dark state brightness is small, which is calculated according to the contrast ratio.
  • the agent generally contains a large amount of chemical solvent NMP (N-methylpyrrolidone) and a polymer material (Polyimide, PI) and other components, and then the substrate is baked at a high temperature (generally 200 degrees Celsius or more) for a long time, so that The solvent in the alignment agent is baked to form a PI alignment layer on the surface of the substrate.
  • a conventional VA type liquid crystal display panel includes an upper substrate 100, a lower substrate 200 disposed opposite the upper substrate 100, and a liquid crystal layer 400 sandwiched between the upper substrate 100 and the lower substrate 200, and is formed on the upper substrate.
  • the surface of the lower substrate 200 faces the PI alignment layer 300 facing the surface of the upper substrate 100. Since the VA type liquid crystal display panel adopts a vertically rotating liquid crystal, the difference in birefringence of the liquid crystal molecules is relatively large, resulting in a serious color shift problem at a large viewing angle.
  • multi-domain VA (MVA) is usually adopted, that is, one sub-pixel is divided into a plurality of regions, and each is made The liquid crystals in the region are undulating in different directions after the voltage is applied, so that the effects seen in the respective directions tend to be average and uniform.
  • MVA multi-domain VA
  • one method is to process one side of the ITO pixel electrode 520 into a "m-shaped" pattern, and the common electrode 510 has a uniform thickness.
  • Continuous uninterrupted planar electrode Due to the special ITO pixel electrode pattern, the resulting oblique electric field can induce liquid crystal molecules 400 in different regions to reverse in different directions.
  • FIG. 2 is a top plan view showing a side of the lower substrate 200 of an MVA type liquid crystal display panel, wherein 610 and 620 are scan lines and data lines, respectively, and the scan lines 610 and the data lines 620 are vertically crossed on the lower substrate 200.
  • the array is arranged in a plurality of sub-pixel regions, and each of the sub-pixel regions is provided with an ITO pixel electrode 520, so that each of the sub-pixel regions is divided into four regions by the ITO pixel electrode 520.
  • the ITO pixel electrode 520 includes a "cross-shaped" keel 511 as a trunk portion, and extends from the "cross-shaped" keel 511 toward the 45°, 135°, -45°, and -135° directions with respect to the horizontal direction.
  • 3 is a cross-sectional view of the MVA type liquid crystal display panel corresponding to AA in FIG. 2, wherein the pixel electrode 520 having a slit is disposed on the flat lower passivation layer 600, and the planar common electrode 510 is disposed on the flat surface.
  • the PI alignment layer 300 covers the pixel electrode 520 and the common electrode 510.
  • T is the transmittance
  • ⁇ is the angle between the long axis of the liquid crystal and the polarizer, and the efficiency is the largest at 45°
  • ⁇ is the phase difference, that is, the modulation effect of the liquid crystal molecules deflected by the electric field to polarize light.
  • a is the angle between the long axis of the liquid crystal molecule and the normal to the substrate, and the size is determined by the magnitude of the electric field received by the liquid crystal molecules
  • d is the cell thickness of the liquid crystal cell
  • ⁇ n is the difference between the liquid crystal length and the short axis refractive index.
  • the ITO pixel electrode 520 has pixel electrode branches extending in the directions of 45°, 135°, ⁇ 45°, and ⁇ 135° with respect to the horizontal direction, respectively, in the four regions of the sub-pixel.
  • 512 and slit spacing pattern upper and lower polarizer directions are 0°, 90°, respectively
  • the long axis of liquid crystal molecules will be inclined by 45°, 135°, -45°, and -135°, respectively, with respect to the horizontal direction.
  • the liquid crystal molecules 400 on the region corresponding to the "cross" keel 511 of the pixel electrode 520 as shown in FIG. 2 tend not to be horizontally opposite to the liquid crystal molecules on the region corresponding to the pattern of the slit electrode 512.
  • the direction is inclined in four directions of 45°, 135°, -45°, and -135°, but as shown in FIG. 4, the liquid crystal molecules 400 located on the corresponding region of the “cross-shaped” keel 511 are inclined with respect to the horizontal direction.
  • the object of the present invention is to provide a pixel electrode, which can solve the problem of low transmittance due to improper lodging of liquid crystal molecules in the main portion of the rice-shaped pixel electrode, improve the transmittance of the liquid crystal panel, and reduce the brightness of the liquid crystal panel. Demand, reduce costs and use power consumption.
  • Another object of the present invention is to provide a liquid crystal display panel in which a main portion of a pixel electrode adopts a right-angled "Z"-shaped structure, which has a high transmittance, a low requirement for backlight brightness, and low power consumption.
  • the present invention provides a pixel electrode including a first main electrode, a second main electrode perpendicularly intersecting the first main electrode, and a second main electrode and a second main electrode connected to the first main electrode and the second main electrode Several branch electrodes;
  • the first main electrode and the second main electrode are each formed in a continuous right-angled "Z" shape;
  • the first trunk electrode and the second trunk electrode divide the plurality of branch electrodes into first, second, third, and fourth regions distributed in a clockwise direction;
  • a plurality of first branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the first region;
  • a plurality of second branch electrodes are respectively connected to one side of the first trunk electrode and the second trunk electrode adjacent to the second region;
  • a plurality of third branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the third region;
  • a plurality of fourth branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the fourth region;
  • the plurality of first, second, third, and fourth branch electrodes are respectively inclined by 135°, 45°, ⁇ 45°, and ⁇ 135° with respect to an extending direction of the second trunk electrode.
  • the first main electrode includes a plurality of first electrode segments, and a plurality of second electrode segments that are in end-to-end and perpendicular to the plurality of first electrode segments;
  • the second main electrode includes a plurality of third electrode segments, and a plurality of fourth electrode segments that are end to end and perpendicular to the plurality of third electrode segments, the third electrode segments and the first electrode Parallel segments, the fourth electrode segment being parallel to the second electrode segment;
  • first main electrode Forming, by the first main electrode, a first bent portion at a junction of the plurality of first electrode segments and the plurality of second electrode segments; respectively, the second main electrode is respectively disposed on the plurality of third electrodes The junction of the segment and the plurality of fourth electrode segments forms a second bent portion.
  • the first electrode segment and the third electrode segment are adjacent to the first region
  • One side of the field is vertically connected to a first branch electrode, and the first branch electrode is connected to the first bent portion or the second bent portion;
  • a second branch electrode is vertically connected to a side of the second electrode segment and the fourth electrode segment adjacent to the second region, and the second branch electrode is connected to the second branch electrode a bent portion or a second bent portion;
  • a third branch electrode is vertically connected to a side of the first electrode segment and the third electrode segment adjacent to the third region, and the third branch electrode is connected to the first electrode segment a bent portion or a second bent portion;
  • a fourth branch electrode is vertically connected to a side of the second electrode segment and the fourth electrode segment adjacent to the fourth region, and the fourth branch electrode is connected to the first a bent portion or a second bent portion.
  • a first electrode segment located in the intermediate portion of the first trunk electrode is shared with the second trunk electrode and replaces a third electrode segment located in the intermediate region of the second trunk electrode.
  • two sides of the first electrode segment and the third electrode segment adjacent to the first region are vertically connected with two first branch electrodes, and the two first branch electrodes are respectively One is connected to the first bent portion or the second bent portion, and the other is connected to the middle portion of the first electrode segment or the third electrode segment;
  • two second branch electrodes are vertically connected to one side of the second electrode segment and the fourth electrode segment adjacent to the second region, and the two second branch electrodes are respectively One is connected to the first bent portion or the second bent portion, and the other is connected to the middle portion of the second electrode segment or the fourth electrode segment;
  • two sides of the first electrode segment and the third electrode segment adjacent to the third region are vertically connected with two third branch electrodes, and the two third branch electrodes are respectively One is connected to the first bent portion or the second bent portion, and the other is connected to the middle portion of the first electrode segment or the third electrode segment;
  • two sides of the second electrode segment and the fourth electrode segment adjacent to the fourth region are respectively vertically connected with two fourth branch electrodes, and the two strips are in the fourth branch electrode.
  • One is connected to the first bent portion or the second bent portion, and the other is connected to the middle portion of the second electrode segment or the fourth electrode segment.
  • the first electrode segment located in the intermediate portion of the first trunk electrode and the fourth electrode segment located at the intermediate portion of the second trunk electrode are perpendicularly intersected, and the foot is the first electrode segment and the fourth electrode segment respectively The midpoint.
  • first, second, third, and fourth electrode slits Forming a plurality of first, second, third, and fourth electrode slits between the plurality of first, second, third, and fourth branch electrodes; respectively, the first, second, third, and fourth Width of the electrode gap
  • the angle is the same; the angle between the first, second, third, and fourth electrode slits and the extending directions of the first trunk electrode and the second trunk electrode is 45 degrees.
  • the widths of the first, second, third, and fourth electrode segments are the same as the widths of the first, second, third, and fourth branch electrodes.
  • the material of the pixel electrode is ITO.
  • the present invention also provides a pixel electrode including a first main electrode, a second main electrode perpendicularly intersecting the first main electrode, and a plurality of branch electrodes connected to the first main electrode and the second main electrode ;
  • the first main electrode and the second main electrode are each formed in a continuous right-angled "Z" shape;
  • the first trunk electrode and the second trunk electrode divide the plurality of branch electrodes into first, second, third, and fourth regions distributed in a clockwise direction;
  • a plurality of first branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the first region;
  • a plurality of second branch electrodes are respectively connected to one side of the first trunk electrode and the second trunk electrode adjacent to the second region;
  • a plurality of third branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the third region;
  • a plurality of fourth branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the fourth region;
  • the first, second, third, and fourth branch electrodes are respectively inclined by 135°, 45°, -45°, and -135° with respect to the extending direction of the second trunk electrode;
  • the first main electrode includes a plurality of first electrode segments, and a plurality of second electrode segments that are in end-to-end and perpendicular to the plurality of first electrode segments;
  • the second main electrode includes a plurality of third electrode segments, and a plurality of fourth electrode segments that are end to end and perpendicular to the plurality of third electrode segments, the third electrode segments and the first electrode Parallel segments, the fourth electrode segment being parallel to the second electrode segment;
  • the second main electrode is respectively disposed on the plurality of third electrodes Forming a second bent portion at a junction of the segment and the plurality of fourth electrode segments;
  • first, second, third, and fourth electrode slits are respectively formed between the plurality of first, second, third, and fourth branch electrodes; the first, second, third, The width of the fourth electrode slot is the same; the angle between the first, second, third, and fourth electrode slots and the extending direction of the first trunk electrode and the second trunk electrode is 45 degrees;
  • the material of the pixel electrode is ITO.
  • the present invention also provides a liquid crystal display panel, comprising: an upper substrate, a lower substrate disposed opposite to the upper substrate, a common electrode disposed on a side of the upper substrate facing the lower substrate, and a surface disposed on the lower substrate a pixel electrode on one side of the upper substrate, and a liquid crystal layer interposed between the common electrode and the pixel electrode;
  • the lower substrate has a plurality of scanning lines extending in a horizontal direction, a plurality of data lines extending in a vertical direction, and a plurality of TFTs, a gate of the TFT is connected to the scan line, a source is connected to the data line, and a drain is connected.
  • the pixel electrode includes a first main electrode, a second main electrode perpendicularly intersecting the first main electrode, and a plurality of branch electrodes connected to the first main electrode and the second main electrode;
  • the first main electrode and the second main electrode are each formed in a continuous right-angled "Z" shape;
  • the first trunk electrode and the second trunk electrode divide the plurality of branch electrodes into first, second, third, and fourth regions distributed in a clockwise direction;
  • a plurality of first branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the first region;
  • a plurality of second branch electrodes are respectively connected to one side of the first trunk electrode and the second trunk electrode adjacent to the second region;
  • a plurality of third branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the third region;
  • a plurality of fourth branch electrodes are respectively connected to a side of the first trunk electrode and the second trunk electrode adjacent to the fourth region;
  • the plurality of first, second, third, and fourth branch electrodes are respectively inclined by 135°, 45°, ⁇ 45°, and ⁇ 135° with respect to an extending direction of the second trunk electrode.
  • the pixel electrode of the present invention by arranging the trunk portion into a narrow-width right-angled "Z"-shaped structure, the liquid crystal molecules at the position of the main electrode are aligned as obliquely as possible at an oblique angle of 45 degrees, thereby increasing the effective efficiency.
  • the display area solves the problem that the transmittance of the liquid crystal molecules at the "cross-shaped" keel structure of the rice-shaped pixel electrode is low, and the transmittance is low, thereby improving the transmittance of the liquid crystal panel and reducing the brightness of the backlight of the liquid crystal panel.
  • Demand reduces costs and power consumption.
  • the main portion of the pixel electrode adopts a right-angled "Z"-shaped structure, and the transmittance is high, the demand for backlight brightness is low, and the power consumption is low.
  • FIG. 1 is a schematic cross-sectional view of a conventional VA type liquid crystal display panel
  • FIG. 2 is a plan top plan view showing a lower substrate side of a conventional MVA liquid crystal display panel
  • FIG. 3 is a schematic cross-sectional view of a conventional MVA type liquid crystal display panel corresponding to A-A in FIG. 2;
  • FIG. 4 is a schematic view showing the reverse direction of liquid crystal molecules in the MVA liquid crystal display panel of FIG. 2;
  • FIG. 5 is a top plan view of a first embodiment of a pixel electrode of the present invention.
  • FIG. 6 is a top plan view of a second embodiment of a pixel electrode of the present invention.
  • FIG. 7 is a schematic cross-sectional structural view of a liquid crystal display panel of the present invention.
  • FIG. 8 is a top plan view showing a side of a lower substrate of a first embodiment of a liquid crystal display panel of the present invention.
  • FIG. 9 is a top plan view showing a side of a lower substrate of a second embodiment of the liquid crystal display panel of the present invention.
  • the present invention firstly provides a pixel electrode including a first main electrode 1, a second main electrode 2 perpendicularly intersecting the first main electrode 1, and a first main electrode 1 and a first main electrode a plurality of branch electrodes on the two main electrodes 2;
  • the main portion of the pixel electrode of the present invention is no longer the "cross-shaped" keel structure in the prior art, but the first main electrode 1 and the second main electrode 2 are both arranged in a right-angled "Z"-shaped structure.
  • the first trunk electrode 1 and the second trunk electrode 2 divide the plurality of branch electrodes into first, second, third, and fourth regions distributed in a clockwise direction;
  • a plurality of first branch electrodes 81 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the first region;
  • a plurality of second branch electrodes 82 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the second region;
  • a plurality of third branch electrodes 83 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the third region;
  • a plurality of fourth branch electrodes 84 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the fourth region;
  • the plurality of first, second, third, and fourth branch electrodes 81, 82, 83, and 84 are inclined by 135°, 45°, -45°, and -135, respectively, with respect to the extending direction of the second trunk electrode 2. °.
  • the first main electrode 1 includes a plurality of first electrode segments 11, and a plurality of second electrode segments 12 that are in end-to-end and perpendicular to the plurality of first electrode segments 11;
  • the second main electrode 2 includes a plurality of third electrode segments 21, and a plurality of fourth electrode segments 22 that are in end-to-end and perpendicular to the plurality of third electrode segments 21, the third electrode segments 21 and The first electrode segments 11 are parallel, and the fourth electrode segments 22 are parallel to the second electrode segments 12;
  • a first bent portion 71 is formed on the first main electrode 1 at a junction of the plurality of first electrode segments 11 and the plurality of second electrode segments 12; the second trunk electrode 2 is respectively on the A junction of the plurality of third electrode segments 21 and the plurality of fourth electrode segments 22 forms a second bent portion 72.
  • a first branch electrode in the first region, is vertically connected to a side of the first electrode segment 11 and the third electrode segment 21 adjacent to the first region 81, the first branch electrode 81 is connected to the first bent portion 71 or the second bent portion 72;
  • a second branch electrode 82 is vertically connected to a side of the second electrode segment 12 and the fourth electrode segment 22 adjacent to the second region, and the second branch electrode 82 is connected.
  • a third branch electrode 83 is vertically connected to a side of the first electrode segment 11 and the third electrode segment 21 adjacent to the third region, and the third branch electrode 83 is connected.
  • a side of the second electrode segment 12 and the fourth electrode segment 22 adjacent to the fourth region is vertically connected with a fourth branch electrode 84, and the fourth branch electrode 84 is connected.
  • the fourth branch electrode 84 is connected on the first bent portion 71 or the second bent portion 72.
  • first electrode segment 11 located in the intermediate portion of the first trunk electrode 1 is shared with the second trunk electrode 2 and replaces the third electrode segment 21 located in the intermediate portion of the second trunk electrode 2.
  • a plurality of first, second, third, and fourth electrode slits 91, 92, 93, and 94 are formed between the plurality of first, second, third, and fourth branch electrodes 81, 82, 83, and 84, respectively. And the widths of the first, second, third, and fourth electrode slits 91, 92, 93, 94 are the same.
  • the angle between the first, second, third, and fourth electrode slits 91, 92, 93, 94 and the extending direction of the first trunk electrode 1 and the second trunk electrode 2 is 45 degrees to ensure liquid crystal molecules It is possible to incline 135°, 45°, -45°, and -135° with respect to the extending direction of the second trunk electrode 2, respectively.
  • the widths of the first, second, third, and fourth branch electrodes 81, 82, 83, and 84 are The degrees of the first, second, third, and fourth electrode segments 11, 12, 21, 22 are the same.
  • first, second, third, and fourth electrode segments 11, 12, 21, 22 may be disposed with the first, second, third, and fourth branch electrodes 81, 82, 83, 84 the same width.
  • the first, second, third, and fourth electrode segments 11, 12, 21, and 1422 have the same length.
  • the material of the pixel electrode is ITO.
  • the plurality of the first, second, third, and fourth branch electrodes 81, 82, 83, and 84 respectively correspond to four regions of one sub-pixel region. .
  • a voltage is applied to the liquid crystal display panel, since the main portion of the pixel electrode of the present invention is not a "cross-shaped" keel structure, but two intersecting right-angled "Z"-shaped structures, an effective display area is increased, and the liquid crystal is reversed.
  • the liquid crystal molecules on the corresponding areas of the original "cross" keel are arranged as much as possible in an oblique 45 degree angle direction, and the liquid crystal molecules in the four regions of one sub-pixel are respectively inverted relative to the second trunk
  • FIG. 6 is a schematic top view of a second embodiment of a pixel electrode according to the present invention.
  • the second embodiment differs from the first embodiment in that:
  • two sides of the first electrode segment 11 and the third electrode segment 21 adjacent to the first region are respectively vertically connected with two first branch electrodes 81, and the two first branches One of the electrodes 81 is connected to the first bent portion 71 or the second bent portion 72, and the other is connected to the middle portion of the first electrode segment 11 or the third electrode segment 21.
  • two second branch electrodes 82 are vertically connected to one side of the second electrode segment 12 and the fourth electrode segment 22 adjacent to the second region, and the two second branches are respectively connected.
  • One of the electrodes 82 is connected to the first bent portion 71 or the second bent portion 72, and the other is connected to the middle of the second electrode segment 12 or the fourth electrode segment 22.
  • two sides of the first electrode segment 11 and the third electrode segment 21 adjacent to the third region are vertically connected to two third branch electrodes 83, and the two third branches are respectively vertically connected.
  • One of the electrodes 83 is connected to the first bent portion 71 or the second bent portion 72, and the other is connected to the middle portion of the first electrode segment 11 or the third electrode segment 21.
  • two sides of the second electrode segment 12 and the fourth electrode segment 22 adjacent to the fourth region are vertically connected to two fourth branch electrodes 84, and the two fourth branches are respectively vertically connected.
  • One of the electrodes 84 is connected to the first bent portion 71 or the second bent portion 72, and the other is connected to the middle of the second electrode segment 12 or the fourth electrode segment 22.
  • first electrode segment 11 located in the intermediate portion of the first trunk electrode 1 is The fourth electrode segments 22 in the intermediate portion of the second main electrode 2 are perpendicularly intersected, and the vertical feet are the midpoints of the first electrode segment 11 and the fourth electrode segment 22, respectively.
  • the plurality of the first, second, third, and fourth branch electrodes 81, 82, 83, and 84 respectively correspond to four regions of one sub-pixel region. .
  • a voltage is applied to the liquid crystal display panel, since the main portion of the pixel electrode of the present invention is not a "cross-shaped" keel structure, but two intersecting right-angled "Z"-shaped structures, an effective display area is increased, and the liquid crystal is reversed.
  • the liquid crystal molecules on the corresponding areas of the original "cross" keel are arranged as much as possible in an oblique 45 degree angle direction, and the liquid crystal molecules in the four regions of one sub-pixel are respectively inverted relative to the second trunk
  • the pixel electrode is arranged in a right-angled "Z"-shaped structure with a narrow width, so that the liquid crystal molecules at the position of the main electrode are aligned as obliquely as possible at an angle of 45 degrees, thereby increasing the effective display area and solving the shape of the rice.
  • the problem of low transmittance caused by improper liquid crystal molecules in the "cross-shaped" keel structure of the pixel electrode improves the transmittance of the liquid crystal panel, reduces the requirement of the backlight brightness of the liquid crystal panel, and reduces the cost and work. Consumption.
  • a liquid crystal display panel provided by the present invention includes: an upper substrate 10, a lower substrate 20 disposed opposite the upper substrate 10, and a side of the upper substrate 10 facing the lower substrate 20 a common electrode 51, a pixel electrode 52 disposed on a side of the lower substrate 20 facing the upper substrate 10, and a liquid crystal layer 40 interposed between the common electrode 51 and the pixel electrode 52;
  • FIG. 7 also illustrates an alignment layer 30 covering the common electrode 51 and the pixel electrode 52 to align the liquid crystal layer 40.
  • the alignment layer 30 may not be provided, but a polymer-stabilized vertical alignment (polymer- The liquid crystal layer 40 is aligned in a manner of stabilized vertical alignment (PSVA).
  • PSVA stabilized vertical alignment
  • the lower substrate 20 has a plurality of scanning lines 61 extending in a horizontal direction, a plurality of data lines 62 extending in a vertical direction, and a plurality of TFTs, and the gates of the TFTs are connected to the scanning lines. 61.
  • the source is connected to the data line 62, and the drain is connected to the pixel electrode 52 via a via.
  • the pixel electrode 52 includes a first main electrode 1, a second main electrode 2 perpendicularly intersecting the first main electrode 1, and a first main electrode 1 connected thereto. a plurality of branch electrodes on the second trunk electrode 2;
  • the first main electrode 1 and the second main electrode 2 are each formed in a continuous right-angled "Z" shape;
  • the first trunk electrode 1 and the second trunk electrode 2 divide the plurality of branch electrodes into first, second, third, and fourth regions distributed in a clockwise direction;
  • a plurality of first branch electrodes 81 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the first region;
  • a plurality of second branch electrodes 82 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the second region;
  • a plurality of third branch electrodes 83 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the third region;
  • a plurality of fourth branch electrodes 84 are respectively connected to a side of the first trunk electrode 1 and the second trunk electrode 2 adjacent to the fourth region;
  • the plurality of first, second, third, and fourth branch electrodes 81, 82, 83, and 84 are inclined by 135°, 45°, -45°, and -135, respectively, with respect to the extending direction of the second trunk electrode 2. °.
  • the pixel electrode 52 on the side of the lower substrate 20 may adopt any one of the first and second embodiments (shown in FIGS. 5 and 6 ) of the pixel electrode described above, and is no longer Narration.
  • the plurality of the first, second, third, and fourth branch electrodes 81, 82, 83, and 84 respectively correspond to four regions of one sub-pixel region. .
  • a voltage is applied to the liquid crystal display panel, since the main portion of the pixel electrode of the present invention is not a "cross-shaped" keel structure, but two intersecting right-angled "Z"-shaped structures, an effective display area is increased, and the liquid crystal is reversed.
  • the liquid crystal molecules on the corresponding areas of the original "cross" keel are arranged as much as possible in an oblique 45 degree angle direction, and the liquid crystal molecules in the four regions of one sub-pixel are respectively inverted relative to the second trunk
  • the main portion of the pixel electrode adopts a right-angled "Z"-shaped structure, and the transmittance is high, the demand for backlight brightness is low, and the power consumption is low.
  • the pixel electrode of the present invention has a narrow-width right-angled "Z"-shaped structure, so that the liquid crystal molecules at the position of the main electrode are aligned as obliquely as possible at an angle of 45 degrees, thereby increasing the effective display.
  • the region solves the problem that the transmittance of the liquid crystal molecules at the "cross-shaped" keel structure is low due to the improper lodging direction of the rice-shaped pixel electrode, improves the transmittance of the liquid crystal panel, and reduces the backlight brightness requirement of the liquid crystal panel. , reducing costs and power consumption.
  • the main portion of the pixel electrode adopts a right-angled "Z"-shaped structure, and the transmittance is high, the demand for backlight brightness is low, and the power consumption is low.

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Abstract

一种像素电极及液晶显示面板，通过将主干部分设置成宽度较窄的直角弯"Z"字形结构，使主干电极（1、2）位置的液晶分子尽可能沿斜45度角方向排列，增加了有效显示区域，解决了由于米字形像素电极"十字形"龙骨结构处的液晶分子倒伏方向不当造成的穿透率偏低的问题，提高了液晶面板的穿透率，降低了液晶面板对背光亮度的需求，降低了成本与使用功耗。该液晶显示面板，其像素电极的主干部分采用直角弯"Z"字形结构，穿透率较高，对背光亮度的需求较低，使用功耗较低。

Description

像素电极及液晶显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种像素电极及液晶显示面板。
背景技术
主动式薄膜晶体管液晶显示器(Thin Film Transistor-LCD，TFT-LCD)近年来得到了飞速的发展和广泛的应用。就目前主流市场上的TFT-LCD显示面板而言，可分为三种类型，分别是扭曲向列(Twisted Nematic，TN)或超扭曲向列(Super Twisted Nematic，STN)型，平面转换(In-Plane Switching，IPS)型、及垂直配向(Vertical Alignment，VA)型。其中VA型液晶显示器相对其他种类的液晶显示器具有极高的对比度，一般可达到4000-8000，在大尺寸显示，如电视等方面具有非常广的应用。
VA型液晶显示面板之所以具有极高的对比度是因为在不加电的暗态时，液晶分子垂直于基板表面排列，不产生任何相位差，漏光极低，暗态亮度很小，根据对比度计算公式暗态亮度越低，则对比度越高。为了使VA型液晶显示面板中的液晶分子能够垂直于基板表面排列，需要对液晶分子进行垂直配向处理，现行最为普遍的做法是在上、下基板表面的特定区域涂布垂直配向剂，垂直配向剂一般包含大量的化学溶剂NMP(N-甲基吡咯烷酮)以及高分子材料聚酰亚胺(Polyimide，PI)等成分，然后将基板在高温(一般200摄氏度以上)下进行长时间烘烤，使配向剂中的溶剂被烤干，从而在基板表面形成PI配向层。如图1所示，传统的VA型液晶显示面板包括：上基板100、与上基板100相对设置的下基板200、夹于上基板100和下基板200之间的液晶层400，形成于上基板100面向下基板200一侧表面及下基板200面向上基板100一侧表面的PI配向层300。由于VA型液晶显示面板采用垂直转动的液晶，液晶分子双折射率的差异比较大，导致大视角下的色偏(color shift)问题比较严重。
为了使VA型液晶显示面板获得更好的广视角特性，改善色偏问题，通常会采取多畴VA技术(multi-domain VA，MVA)，即将一个子像素划分成多个区域，并使每个区域中的液晶在施加电压后倒伏向不同的方向，从而使各个方向看到的效果趋于平均、一致。实现MVA技术的方法有多种，请参阅图2、图3、及图4，其中一种方法是将一侧的ITO像素电极520处理成“米字型”图案，公共电极510为厚度均匀、连续不间断的平面电极， 由于特殊的ITO像素电极图案，其产生的倾斜电场可以诱导不同区域中的液晶分子400倒向不同的方向。
图2所示为一种MVA型液晶显示面板的下基板200一侧的平面俯视示意图，其中610与620分别为扫描线与数据线，所述扫描线610与数据线620在下基板200上垂直交叉排列，围成数个子像素区域，每个子像素区域中设有一ITO像素电极520，从而每个子像素区域被ITO像素电极520划分成了四个区域。所述ITO像素电极520包括作为主干部分的“十字形”龙骨511、及相对于水平方向自该“十字形”龙骨511分别向45°、135°、-45°、及-135°方向延伸的像素电极分支512与狭缝间隔的图案。图3所示为该MVA型液晶显示面板在对应图2中A-A处的剖面示意图，其中具有狭缝的像素电极520设于平坦的下钝化层600上，平面型的公共电极510设于平坦的上钝化层600上，PI配向层300覆盖于像素电极520及公共电极510上。
根据VA型液晶显示面板的穿透率公式：
Figure PCTCN2015085090-appb-000001
其中T为穿透率，ΔΦ为液晶长轴与偏光片夹角，45°时效率最大；Γ为相位差，即由液晶分子在电场驱动下偏转对偏振光的调制效果。
Γ的计算公式为：
Γ＝cos(a)*2π*Δn*d/λ   (2)
其中，a为液晶分子长轴与基板法线的夹角，其大小受液晶分子受到的电场大小决定，d为液晶盒盒厚，Δn为液晶长、短轴折射率差。
由以上穿透率公式可知，由于在子像素的四个区域内，ITO像素电极520具有分别向相对于水平方向倾斜45°、135°、-45°、及-135°方向延伸的像素电极分支512与狭缝间隔的图案(上、下偏光片方向分别为0°、90°)，液晶分子长轴将分别向相对于水平方向倾斜45°、135°、-45°、及-135°方向倒伏，穿透率公式中sin22ΔΦ＝1，能够实现穿透率的最大化。
但是如图2所示的像素电极520的“十字形”龙骨511所对应区域上的液晶分子400往往不能像像素电极分支512与狭缝间隔的图案所对应区域上的液晶分子那样向相对于水平方向倾斜45°、135°、-45°、及-135°四个方向倒伏，而是如图4所示，位于“十字形”龙骨511对应区域上的液晶分子400向相对于水平方向倾斜0°、或90°方向倒伏，使得穿透率公式中sin22ΔΦ＝0，显示为不透光态，造成液晶显示面板的整体穿透率 下降。
发明内容
本发明的目的在于提供一种像素电极，可解决由于米字形像素电极的主干部分液晶分子倒伏方向不当造成的穿透率偏低的问题，提高液晶面板的穿透率，降低液晶面板对背光亮度的需求，降低成本与使用功耗。
本发明的目的还在于提供一种液晶显示面板，其像素电极的主干部分采用直角弯“Z”字形结构，穿透率较高，对背光亮度的需求较低，使用功耗较低。
为实现上述目的，本发明提供一种像素电极，包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°。
所述第一主干电极包括数个第一电极段、及与所述数个第一电极段首尾相接且相互垂直的数个第二电极段；
所述第二主干电极包括数个第三电极段、及与所述数个第三电极段首尾相接且相互垂直的数个第四电极段，所述第三电极段与所述第一电极段平行，所述第四电极段与所述第二电极段平行；
所述第一主干电极上分别于所述数个第一电极段与数个第二电极段的连接处形成第一弯折部；所述第二主干电极上分别于所述数个第三电极段与数个第四电极段的连接处形成第二弯折部。
在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区 域的一侧分别垂直连接有一条第一分支电极，所述第一分支电极连接于所述第一弯折部或第二弯折部上；
在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有一条第二分支电极，所述第二分支电极连接于所述第一弯折部或第二弯折部上；
在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有一条第三分支电极，所述第三分支电极连接于所述第一弯折部或第二弯折部上；
在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有一条第四分支电极，所述第四分支电极连接于所述第一弯折部或第二弯折部上。
所述第一主干电极中位于中间区域的第一电极段与所述第二主干电极共用，并代替所述第二主干电极中位于中间区域的第三电极段。
在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区域的一侧分别垂直连接有两条第一分支电极，所述两条第一分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有两条第二分支电极，所述两条第二分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部；
在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有两条第三分支电极，所述两条第三分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有两条第四分支电极，所述两条条第四分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部。
所述第一主干电极中位于中间区域的第一电极段与所述第二主干电极中位于中间区域的第四电极段垂直相交，且垂足分别为所述第一电极段与第四电极段的中点。
所述数条第一、第二、第三、第四分支电极之间分别形成数个第一、第二、第三、第四电极缝隙；所述第一、第二、第三、第四电极缝隙的宽 度相同；所述第一、第二、第三、第四电极缝隙与所述第一主干电极及第二主干电极的延伸方向的夹角为45度。
所述第一、第二、第三、第四电极段的宽度与所述第一、第二、第三、第四分支电极的宽度相同。
所述像素电极的材料为ITO。
本发明还提供一种像素电极，包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°；
其中，
所述第一主干电极包括数个第一电极段、及与所述数个第一电极段首尾相接且相互垂直的数个第二电极段；
所述第二主干电极包括数个第三电极段、及与所述数个第三电极段首尾相接且相互垂直的数个第四电极段，所述第三电极段与所述第一电极段平行，所述第四电极段与所述第二电极段平行；
所述第一主干电极上分别于所述数个第一电极段与数个第二电极段的连接处形成第一弯折部；所述第二主干电极上分别于所述数个第三电极段与数个第四电极段的连接处形成第二弯折部；
其中，所述数条第一、第二、第三、第四分支电极之间分别形成数个第一、第二、第三、第四电极缝隙；所述第一、第二、第三、第四电极缝隙的宽度相同；所述第一、第二、第三、第四电极缝隙与所述第一主干电极及第二主干电极的延伸方向的夹角为45度；
其中，所述像素电极的材料为ITO。
本发明还提供一种液晶显示面板，包括：上基板、与所述上基板相对设置的下基板、设置于所述上基板面向所述下基板一侧的公共电极、设于所述下基板面向所述上基板一侧的像素电极、及夹设于所述公共电极与像素电极之间的液晶层；
所述下基板具有沿水平方向延伸的数条扫描线、沿竖直方向延伸的数条数据线、及数个TFT，所述TFT的栅极连接扫描线，源极连接数据线，漏极连接所述像素电极；
所述像素电极包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°。
本发明的有益效果：本发明的像素电极，通过将主干部分设置成宽度较窄的直角弯“Z”字形结构，使主干电极位置的液晶分子尽可能沿斜45度角方向排列，增加了有效显示区域，解决了由于米字形像素电极“十字形”龙骨结构处的液晶分子倒伏方向不当造成的穿透率偏低的问题，提高了液晶面板的穿透率，降低了液晶面板对背光亮度的需求，降低了成本与使用功耗。本发明的液晶显示面板，其像素电极的主干部分采直角弯“Z”字形结构，穿透率较高，对背光亮度的需求较低，使用功耗较低。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本 发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为一种现有的VA型液晶显示面板的剖面示意图；
图2为一种现有的MVA型液晶显示面板的下基板一侧的平面俯视示意图；
图3为一种现有的MVA型液晶显示面板在对应图2中A-A处的剖面示意图；
图4为图2所述的MVA型液晶显示面板中的液晶分子倒向示意图；
图5为本发明的像素电极第一实施例的俯视示意图；
图6为本发明的像素电极第二实施例的俯视示意图；
图7为本发明的液晶显示面板的剖面结构示意图；
图8为本发明的液晶显示面板第一实施例的下基板一侧的平面俯视示意图；
图9为本发明的液晶显示面板第二实施例的下基板一侧的平面俯视示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图5，本发明首先提供一种像素电极，包括第一主干电极1、与所述第一主干电极1垂直相交的第二主干电极2、及连接于所述第一主干电极1与第二主干电极2上的数个分支电极；
本发明的像素电极的主干部分不再是现有技术中的“十字形”龙骨结构，而是将所述第一主干电极1与第二主干电极2均设置为直角弯“Z”字形结构。
所述第一主干电极1与第二主干电极2将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
在所述第一区域中，所述第一主干电极1与第二主干电极2上靠近所述第一区域的一侧分别连接有数条第一分支电极81；
在所述第二区域中，所述第一主干电极1与第二主干电极2上靠近所述第二区域的一侧分别连接有数条第二分支电极82；
在所述第三区域中，所述第一主干电极1与第二主干电极2上靠近所述第三区域的一侧分别连接有数条第三分支电极83；
在所述第四区域中，所述第一主干电极1与第二主干电极2上靠近所述第四区域的一侧分别连接有数条第四分支电极84；
所述数个第一、第二、第三、第四分支电极81、82、83、84分别相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°。
具体的，所述第一主干电极1包括数个第一电极段11、及与所述数个第一电极段11首尾相接且相互垂直的数个第二电极段12；
所述第二主干电极2包括数个第三电极段21、及与所述数个第三电极段21首尾相接且相互垂直的数个第四电极段22，所述第三电极段21与所述第一电极段11平行，所述第四电极段22与所述第二电极段12平行；
所述第一主干电极1上分别于所述数个第一电极段11与数个第二电极段12的连接处形成第一弯折部71；所述第二主干电极2上分别于所述数个第三电极段21与数个第四电极段22的连接处形成第二弯折部72。
具体的，该第一实施例中，在所述第一区域中，所述第一电极段11、第三电极段21上靠近所述第一区域的一侧分别垂直连接有一条第一分支电极81，所述第一分支电极81连接于所述第一弯折部71或第二弯折部72上；
在所述第二区域中，所述第二电极段12、第四电极段22上靠近所述第二区域的一侧分别垂直连接有一条第二分支电极82，所述第二分支电极82连接于所述第一弯折部71或第二弯折部72上；
在所述第三区域中，所述第一电极段11、第三电极段21上靠近所述第三区域的一侧分别垂直连接有一条第三分支电极83，所述第三分支电极83连接于所述第一弯折部71或第二弯折部72上；
在所述第四区域中，所述第二电极段12、第四电极段22上靠近所述第四区域的一侧分别垂直连接有一条第四分支电极84，所述第四分支电极84连接于所述第一弯折部71或第二弯折部72上。
进一步的，所述第一主干电极1中位于中间区域的第一电极段11与所述第二主干电极2共用，并代替所述第二主干电极2中位于中间区域的第三电极段21。
所述数条第一、第二、第三、第四分支电极81、82、83、84之间分别形成数个第一、第二、第三、第四电极缝隙91、92、93、94，并且所述第一、第二、第三、第四电极缝隙91、92、93、94的宽度相同。所述第一、第二、第三、第四电极缝隙91、92、93、94与所述第一主干电极1及第二主干电极2的延伸方向的夹角为45度，以保证液晶分子能够分别相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°。
具体的，所述第一、第二、第三、第四分支电极81、82、83、84的宽 度相同，所述第一、第二、第三、第四电极段11、12、21、22的宽度相同。
进一步的，所述第一、第二、第三、第四电极段11、12、21、22可以设成与所述第一、第二、第三、第四分支电极81、82、83、84相同的宽度。所述第一、第二、第三、第四电极段11、12、21、1422的长度相同。
优选的，所述像素电极的材料为ITO。
将本发明的像素电极应用于液晶显示面板时，所述数个所述第一、第二、第三、第四分支电极81、82、83、84分别对应于一个子像素区域的四个区域。对液晶显示面板施加电压时，由于本发明的像素电极的主干部分不是“十字形”龙骨结构，而是两个交叉的直角弯“Z”字形结构，增加了有效显示区域，降低了液晶倒向不当的问题，使原“十字形”龙骨对应区域上的液晶分子尽可能多的沿斜45度角方向排列，一个子像素的四个区域中的液晶分子分别倒向相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°，任一区域中均有sin22ΔΦ＝1，从而使得液晶效率最大化，穿透率提高。
请参阅图6，为本发明的像素电极第二实施例的俯视示意图，该第二实施例与第一实施例的区别在于：
在所述第一区域中，所述第一电极段11、第三电极段21上靠近所述第一区域的一侧分别垂直连接有两条第一分支电极81，所述两条第一分支电极81中有一条连接于所述第一弯折部71或第二弯折部72上，另外一条连接于所述第一电极段11或第三电极段21的中部。
在所述第二区域中，所述第二电极段12、第四电极段22上靠近所述第二区域的一侧分别垂直连接有两条第二分支电极82，所述两条第二分支电极82中有一条连接于所述第一弯折部71或第二弯折部72上，另外一条连接于所述第二电极段12或第四电极段22的中部。
在所述第三区域中，所述第一电极段11、第三电极段21上靠近所述第三区域的一侧分别垂直连接有两条第三分支电极83，所述两条第三分支电极83中有一条连接于所述第一弯折部71或第二弯折部72上，另外一条连接于所述第一电极段11或第三电极段21的中部。
在所述第四区域中，所述第二电极段12、第四电极段22上靠近所述第四区域的一侧分别垂直连接有两条第四分支电极84，所述两条第四分支电极84中有一条连接于所述第一弯折部71或第二弯折部72上，另外一条连接于所述第二电极段12或第四电极段22的中部。
进一步的，所述第一主干电极1中位于中间区域的第一电极段11与所 述第二主干电极2中位于中间区域的第四电极段22垂直相交，且垂足分别为所述第一电极段11与第四电极段22的中点。
其余均与第一实施例相同，此处不再赘述。
将本发明的像素电极应用于液晶显示面板时，所述数个所述第一、第二、第三、第四分支电极81、82、83、84分别对应于一个子像素区域的四个区域。对液晶显示面板施加电压时，由于本发明的像素电极的主干部分不是“十字形”龙骨结构，而是两个交叉的直角弯“Z”字形结构，增加了有效显示区域，降低了液晶倒向不当的问题，使原“十字形”龙骨对应区域上的液晶分子尽可能多的沿斜45度角方向排列，一个子像素的四个区域中的液晶分子分别倒向相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°，任一区域中均有sin22ΔΦ＝1，从而使得液晶效率最大化，穿透率提高。
上述像素电极，通过将主干部分设置成宽度较窄的直角弯“Z”字形结构，使主干电极位置的液晶分子尽可能沿斜45度角方向排列，增加了有效显示区域，解决了由于米字形像素电极“十字形”龙骨结构处的液晶分子倒伏方向不当造成的穿透率偏低的问题，提高了液晶面板的穿透率，降低了液晶面板对背光亮度的需求，降低了成本与使用功耗。
基于同一个发明构思，本发明还提供一种液晶显示面板。请参阅图7-9，本发明提供的一种液晶显示面板包括：上基板10、与所述上基板10相对设置的下基板20、设置于所述上基板10面向所述下基板20一侧的公共电极51、设于所述下基板20面向所述上基板10一侧的像素电极52、及夹设于所述公共电极51与像素电极52之间的液晶层40；
图7还示意出了覆盖所述公共电极51与像素电极52的配向层30，以对液晶层40进行配向，当然，也可以不设置配向层30，而是采用聚合物稳定垂直配向(polymer-stabilized vertical alignment，PSVA)的方式对液晶层40进行配向。
请参阅图8-9，所述下基板20具有沿水平方向延伸的数条扫描线61、沿竖直方向延伸的数条数据线62、及数个TFT，所述TFT的栅极连接扫描线61，源极连接数据线62，漏极经由一过孔连接所述像素电极52。
具体的，请参阅图5-6，所述像素电极52包括第一主干电极1、与所述第一主干电极1垂直相交的第二主干电极2、及连接于所述第一主干电极1与第二主干电极2上的数个分支电极；
所述第一主干电极1与第二主干电极2均呈连续的直角弯“Z”字形；
所述第一主干电极1与第二主干电极2将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
在所述第一区域中，所述第一主干电极1与第二主干电极2上靠近所述第一区域的一侧分别连接有数条第一分支电极81；
在所述第二区域中，所述第一主干电极1与第二主干电极2上靠近所述第二区域的一侧分别连接有数条第二分支电极82；
在所述第三区域中，所述第一主干电极1与第二主干电极2上靠近所述第三区域的一侧分别连接有数条第三分支电极83；
在所述第四区域中，所述第一主干电极1与第二主干电极2上靠近所述第四区域的一侧分别连接有数条第四分支电极84；
所述数个第一、第二、第三、第四分支电极81、82、83、84分别相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°。
请参阅图8至图9，下基板20一侧的像素电极52可以采用上述像素电极的第一和第二实施例(如图5和图6所示)的任意一种结构，此处不再赘述。
将本发明的像素电极应用于液晶显示面板时，所述数个所述第一、第二、第三、第四分支电极81、82、83、84分别对应于一个子像素区域的四个区域。对液晶显示面板施加电压时，由于本发明的像素电极的主干部分不是“十字形”龙骨结构，而是两个交叉的直角弯“Z”字形结构，增加了有效显示区域，降低了液晶倒向不当的问题，使原“十字形”龙骨对应区域上的液晶分子尽可能多的沿斜45度角方向排列，一个子像素的四个区域中的液晶分子分别倒向相对于所述第二主干电极2的延伸方向倾斜135°、45°、-45°与-135°，任一区域中均有sin22ΔΦ＝1，从而使得液晶效率最大化，穿透率提高。
上述液晶显示面板，其像素电极的主干部分采用直角弯“Z”字形结构，穿透率较高，对背光亮度的需求较低，使用功耗较低。
综上所述，本发明的像素电极，通过将主干部分设置成宽度较窄的直角弯“Z”字形结构，使主干电极位置的液晶分子尽可能沿斜45度角方向排列，增加了有效显示区域，解决了由于米字形像素电极“十字形”龙骨结构处的液晶分子倒伏方向不当造成的穿透率偏低的问题，提高了液晶面板的穿透率，降低了液晶面板对背光亮度的需求，降低了成本与使用功耗。本发明的液晶显示面板，其像素电极的主干部分采用直角弯“Z”字形结构，穿透率较高，对背光亮度的需求较低，使用功耗较低。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (16)

  1. 一种像素电极，包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
    所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
    所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
    在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
    在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
    在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
    在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
    所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°。
  2. 如权利要求1所述的像素电极，其中，
    所述第一主干电极包括数个第一电极段、及与所述数个第一电极段首尾相接且相互垂直的数个第二电极段；
    所述第二主干电极包括数个第三电极段、及与所述数个第三电极段首尾相接且相互垂直的数个第四电极段，所述第三电极段与所述第一电极段平行，所述第四电极段与所述第二电极段平行；
    所述第一主干电极上分别于所述数个第一电极段与数个第二电极段的连接处形成第一弯折部；所述第二主干电极上分别于所述数个第三电极段与数个第四电极段的连接处形成第二弯折部。
  3. 如权利要求2所述的像素电极，其中，
    在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区域的一侧分别垂直连接有一条第一分支电极，所述第一分支电极连接于所述第一弯折部或第二弯折部上；
    在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有一条第二分支电极，所述第二分支电极连接于所 述第一弯折部或第二弯折部上；
    在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有一条第三分支电极，所述第三分支电极连接于所述第一弯折部或第二弯折部上；
    在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有一条第四分支电极，所述第四分支电极连接于所述第一弯折部或第二弯折部上。
  4. 如权利要求3所述的像素电极，其中，所述第一主干电极中位于中间区域的第一电极段与所述第二主干电极共用，并代替所述第二主干电极中位于中间区域的第三电极段。
  5. 如权利要求2所述的像素电极，其中，
    在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区域的一侧分别垂直连接有两条第一分支电极，所述两条第一分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
    在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有两条第二分支电极，所述两条第二分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部；
    在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有两条第三分支电极，所述两条第三分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
    在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有两条第四分支电极，所述两条条第四分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部。
  6. 如权利要求5所述的像素电极，其中，所述第一主干电极中位于中间区域的第一电极段与所述第二主干电极中位于中间区域的第四电极段垂直相交，且垂足分别为所述第一电极段与第四电极段的中点。
  7. 如权利要求1所述的像素电极，其中，所述数条第一、第二、第三、第四分支电极之间分别形成数个第一、第二、第三、第四电极缝隙；所述第一、第二、第三、第四电极缝隙的宽度相同；所述第一、第二、第三、第四电极缝隙与所述第一主干电极及第二主干电极的延伸方向的夹角为45 度。
  8. 如权利要求2所述的像素电极，其中，所述第一、第二、第三、第四电极段的宽度与所述第一、第二、第三、第四分支电极的宽度相同。
  9. 如权利要求1所述的像素电极，其中，所述像素电极的材料为ITO。
  10. 一种像素电极，包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
    所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
    所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
    在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
    在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
    在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
    在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
    所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°；
    其中，
    所述第一主干电极包括数个第一电极段、及与所述数个第一电极段首尾相接且相互垂直的数个第二电极段；
    所述第二主干电极包括数个第三电极段、及与所述数个第三电极段首尾相接且相互垂直的数个第四电极段，所述第三电极段与所述第一电极段平行，所述第四电极段与所述第二电极段平行；
    所述第一主干电极上分别于所述数个第一电极段与数个第二电极段的连接处形成第一弯折部；所述第二主干电极上分别于所述数个第三电极段与数个第四电极段的连接处形成第二弯折部；
    其中，所述数条第一、第二、第三、第四分支电极之间分别形成数个第一、第二、第三、第四电极缝隙；所述第一、第二、第三、第四电极缝隙的宽度相同；所述第一、第二、第三、第四电极缝隙与所述第一主干电极及第二主干电极的延伸方向的夹角为45度；
    其中，所述像素电极的材料为ITO。
  11. 如权利要求10所述的像素电极，其中，
    在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区域的一侧分别垂直连接有一条第一分支电极，所述第一分支电极连接于所述第一弯折部或第二弯折部上；
    在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有一条第二分支电极，所述第二分支电极连接于所述第一弯折部或第二弯折部上；
    在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有一条第三分支电极，所述第三分支电极连接于所述第一弯折部或第二弯折部上；
    在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有一条第四分支电极，所述第四分支电极连接于所述第一弯折部或第二弯折部上。
  12. 如权利要求11所述的像素电极，其中，所述第一主干电极中位于中间区域的第一电极段与所述第二主干电极共用，并代替所述第二主干电极中位于中间区域的第三电极段。
  13. 如权利要求10所述的像素电极，其中，
    在所述第一区域中，所述第一电极段、第三电极段上靠近所述第一区域的一侧分别垂直连接有两条第一分支电极，所述两条第一分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
    在所述第二区域中，所述第二电极段、第四电极段上靠近所述第二区域的一侧分别垂直连接有两条第二分支电极，所述两条第二分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部；
    在所述第三区域中，所述第一电极段、第三电极段上靠近所述第三区域的一侧分别垂直连接有两条第三分支电极，所述两条第三分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第一电极段或第三电极段的中部；
    在所述第四区域中，所述第二电极段、第四电极段上靠近所述第四区域的一侧分别垂直连接有两条第四分支电极，所述两条条第四分支电极中有一条连接于所述第一弯折部或第二弯折部上，另一条连接于所述第二电极段或第四电极段的中部。
  14. 如权利要求13所述的像素电极，其中，所述第一主干电极中位于 中间区域的第一电极段与所述第二主干电极中位于中间区域的第四电极段垂直相交，且垂足分别为所述第一电极段与第四电极段的中点。
  15. 如权利要求11所述的像素电极，其中，所述第一、第二、第三、第四电极段的宽度与所述第一、第二、第三、第四分支电极的宽度相同。
  16. 一种液晶显示面板，包括：上基板、与所述上基板相对设置的下基板、设置于所述上基板面向所述下基板一侧的公共电极、设于所述下基板面向所述上基板一侧的像素电极、及夹设于所述公共电极与像素电极之间的液晶层；
    所述下基板具有沿水平方向延伸的数条扫描线、沿竖直方向延伸的数条数据线、及数个TFT，所述TFT的栅极连接扫描线，源极连接数据线，漏极连接所述像素电极；
    所述像素电极包括第一主干电极、与所述第一主干电极垂直相交的第二主干电极、及连接于所述第一主干电极与第二主干电极上的数个分支电极；
    所述第一主干电极与第二主干电极均呈连续的直角弯“Z”字形；
    所述第一主干电极与第二主干电极将所述数个分支电极分成沿顺时针方向分布的第一、第二、第三、及第四区域；
    在所述第一区域中，所述第一主干电极与第二主干电极上靠近所述第一区域的一侧分别连接有数条第一分支电极；
    在所述第二区域中，所述第一主干电极与第二主干电极上靠近所述第二区域的一侧分别连接有数条第二分支电极；
    在所述第三区域中，所述第一主干电极与第二主干电极上靠近所述第三区域的一侧分别连接有数条第三分支电极；
    在所述第四区域中，所述第一主干电极与第二主干电极上靠近所述第四区域的一侧分别连接有数条第四分支电极；
    所述数个第一、第二、第三、第四分支电极分别相对于所述第二主干电极的延伸方向倾斜135°、45°、-45°与-135°。
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CN103792737A (zh) * 2013-08-20 2014-05-14 友达光电股份有限公司 变流装置及其控制方法
CN104570513A (zh) * 2014-12-29 2015-04-29 深圳市华星光电技术有限公司 一种像素结构及液晶显示面板

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