WO2021196329A1 - 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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Publication number
WO2021196329A1
WO2021196329A1 PCT/CN2020/087695 CN2020087695W WO2021196329A1 WO 2021196329 A1 WO2021196329 A1 WO 2021196329A1 CN 2020087695 W CN2020087695 W CN 2020087695W WO 2021196329 A1 WO2021196329 A1 WO 2021196329A1
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WIPO (PCT)
Prior art keywords
electrode
main
side electrode
pixel
pixel electrode
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Ceased
Application number
PCT/CN2020/087695
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English (en)
French (fr)
Inventor
张琪
严允晟
曹武
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/963,253 priority Critical patent/US11822188B2/en
Publication of WO2021196329A1 publication Critical patent/WO2021196329A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—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
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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 technology, and in particular to a pixel electrode and a liquid crystal display panel.
  • Multi-domain vertical alignment Vertical alignment (MVA) liquid crystal displays have been widely used in large-size liquid crystal displays with the advantages of high contrast and wide viewing angle. With the evolution of the screen size to larger screens, the eight-domain pixel electrode design has excellent viewing angle performance. While it is valued in large-size displays, the eight-domain pixel electrode alignment process, for the liquid crystal molecules located at the pixel boundary, due to the simultaneous presence of the driving force from the main electrode and the side electrode of the sub-pixel electrode at the pixel boundary , Which makes the alignment control effect of the liquid crystal molecules in this place poor. When the alignment force in one direction is greater than the alignment force in the other opposite direction, it will cause some of the liquid crystal molecules in the place to tilt in the opposite direction, and the actual tilt direction is the same as the ideal direction. On the contrary, dark lines are generated and transmittance is lost.
  • MVA Multi-domain vertical alignment Vertical alignment
  • the pixel electrode and the liquid crystal display panel provided by the present invention solve the problem of the existing pixel electrode, when some liquid crystal molecules located at the pixel boundary are aligned, the tilting direction is opposite to the ideal direction, resulting in dark lines and loss of transmittance. problem.
  • An embodiment of the present invention provides a pixel electrode, including:
  • the main electrode includes a first main electrode and a second main electrode arranged in a cross shape
  • the branch electrode is connected to the main electrode, and there is an angle between the branch electrode and the main electrode, and the angle is 45°;
  • the side electrode includes a first side electrode, a second side electrode, a third side electrode, and a fourth side electrode.
  • the first side electrode and the second side electrode are respectively connected to the first side electrode.
  • Two ends of a main electrode, the third side electrode and the fourth side electrode are respectively located on the side of the first side electrode and the second side electrode away from the branch electrode;
  • first side electrode and the second side electrode are respectively provided with a gap at the junction with the first main electrode, and the gap is located at the first side electrode and the second side.
  • the side electrode is away from the side of the branch electrode.
  • the third side electrode and the fourth side electrode are provided with protrusions at positions corresponding to the notch, and the protrusions are located between the third side electrode and the third side electrode.
  • the fourth side electrode is close to the side of the branch electrode.
  • the axis of the protrusion, the axis of the notch, and the axis of the extension direction of the first main electrode are collinear.
  • the shape of the protrusion corresponds to the shape of the notch.
  • the pixel electrode further includes a plurality of slits that are spaced apart from the branch electrode and are parallel to each other, wherein the sides of the notches are parallel to the extending direction of the slits .
  • the shape of the notch is a triangle or a trapezoid.
  • the pixel electrode includes a main pixel electrode and a sub-pixel electrode
  • the main pixel electrode includes the first main electrode, the second main electrode, the first side electrode, and the second side electrode;
  • the sub-pixel electrode includes a third main electrode arranged in parallel with the first main electrode, a fourth main electrode arranged in a cross shape with the third main electrode, the third side electrode, and the second main electrode.
  • Four side electrodes, the third side electrode and the fourth side electrode are respectively connected to both ends of the third main electrode and extend along the direction from the sub-pixel electrode to the main pixel electrode, so A gap is provided between the three side electrode and the fourth side electrode and the first side electrode and the second side electrode, and the gap is in communication with the gap.
  • the width of the gap decreases from both ends of the first side electrode and the second side electrode to the direction approaching the first main electrode.
  • the pixel electrode further includes a control component disposed on a side of the main pixel electrode away from the sub-pixel electrode, and the control component is respectively connected to the main pixel electrode.
  • the electrode is electrically connected to the sub-pixel electrode.
  • An embodiment of the present invention provides a pixel electrode, including:
  • the main electrode includes a first main electrode and a second main electrode arranged in a cross shape
  • the side electrode includes a first side electrode, a second side electrode, a third side electrode, and a fourth side electrode.
  • the first side electrode and the second side electrode are respectively connected to the first side electrode.
  • Two ends of a main electrode, the third side electrode and the fourth side electrode are respectively located on the side of the first side electrode and the second side electrode away from the branch electrode;
  • first side electrode and the second side electrode are respectively provided with a gap at the junction with the first main electrode, and the gap is located at the first side electrode and the second side.
  • the side electrode is away from the side of the branch electrode.
  • the third side electrode and the fourth side electrode are provided with protrusions at positions corresponding to the notch, and the protrusions are located between the third side electrode and the third side electrode.
  • the fourth side electrode is close to the side of the branch electrode.
  • the axis of the protrusion, the axis of the notch, and the axis of the extension direction of the first main electrode are collinear.
  • the shape of the protrusion corresponds to the shape of the notch.
  • the height of the protrusion in the extending direction of the first main electrode is greater than or equal to 1 um.
  • the pixel electrode further includes a plurality of slits that are spaced apart from the branch electrode and are parallel to each other, wherein the sides of the notches are parallel to the extending direction of the slits .
  • the shape of the notch is a triangle or a trapezoid.
  • the pixel electrode includes a main pixel electrode and a sub-pixel electrode
  • the main pixel electrode includes the first main electrode, the second main electrode, the first side electrode, and the second side electrode;
  • the sub-pixel electrode includes a third main electrode arranged in parallel with the first main electrode, a fourth main electrode arranged in a cross shape with the third main electrode, the third side electrode, and the second main electrode.
  • Four side electrodes, the third side electrode and the fourth side electrode are respectively connected to both ends of the third main electrode and extend along the direction from the sub-pixel electrode to the main pixel electrode, so A gap is provided between the three side electrode and the fourth side electrode and the first side electrode and the second side electrode, and the gap is in communication with the gap.
  • the width of the gap decreases from both ends of the first side electrode and the second side electrode to the direction approaching the first main electrode.
  • the pixel electrode further includes a control component disposed on a side of the main pixel electrode away from the sub-pixel electrode, and the control component is respectively connected to the main pixel electrode.
  • the electrode is electrically connected to the sub-pixel electrode.
  • An embodiment of the present invention provides a liquid crystal display panel including the above-mentioned pixel electrode.
  • the beneficial effects of the present invention are: the pixel electrode and the liquid crystal display panel provided by the present invention are provided with a gap at the junction of the first side electrode and the second side electrode with the first main electrode, so that the pixel electrode and the liquid crystal display panel are located at the boundary of the pixel.
  • the opposite alignment directions can be maintained without interference with each other, so as to achieve the ideal tilting direction, which can effectively improve the pixel boundary dark lines and increase the transmittance.
  • FIG. 1 is a schematic diagram of a planar structure of a pixel electrode according to an embodiment of the present invention
  • Fig. 2 is an enlarged schematic diagram of area A in Fig. 1;
  • FIG. 3 is a schematic diagram of a planar structure of another pixel electrode provided by an embodiment of the present invention.
  • Fig. 4 is an enlarged schematic diagram of area B in Fig. 3.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • an intermediate medium it can be the internal communication of two components or the interaction of two components relation.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the pixel electrode provided by the embodiment of the present invention includes a main electrode 10, a branch electrode 20, and a side electrode 30.
  • the main electrode 10 includes a first main electrode 101 and a second main electrode arranged in a cross shape. 102; the branch electrode 20 is connected to the main electrode 10, there is an angle between the branch electrode 20 and the main electrode 10, the angle between the branch electrode 20 and the first main electrode 101 It may be 30°-60°, and preferably, the angle between the branch electrode 20 and the first main electrode 101 is 45°.
  • the side electrode 30 includes a first side electrode 301, a second side electrode 302, a third side electrode 303, and a fourth side electrode 304.
  • the electrodes 302 are respectively connected to both ends of the first main electrode 101, and the third side electrode 303 and the fourth side electrode 304 are respectively located at the first side electrode 301 and the second side electrode
  • the electrode 302 is far away from the branch electrode 20. It can be understood that the junction between the first main electrode 101 and the first side electrode 301 and the second side electrode 302 is the At the pixel boundary of the pixel electrode, the driving force received by some of the liquid crystal molecules located at the pixel boundary when aligned is in the opposite direction.
  • the first side electrode 301 and the second side electrode 302 are respectively provided with a notch 40 at the junction with the first main electrode 101, and the notch 40 is located in the
  • the first side electrode 301 and the second side electrode 302 are far away from the side of the branch electrode 20, so that the liquid crystal molecules with two different alignment directions located at the pixel boundary will not interfere with each other, so as to achieve good performance. Control the tilting direction of the liquid crystal molecules to avoid the occurrence of the liquid crystal molecules tilting in the direction opposite to the ideal tilting direction, thereby eliminating dark shadows and improving light transmittance.
  • the pixel electrode further includes a plurality of slits 50 spaced apart from the branch electrode 20 and parallel to each other, wherein the side of the notch 40 is parallel to the extending direction of the slit 50, so that The tilting direction of the liquid crystal molecules in the notch 40 is consistent with the tilting direction of the liquid crystal molecules in the slit 50 in the adjacent alignment area, so that the notch 40 can function as the slit 50 and is located After the liquid crystal molecules at the pixel boundary tip over, the liquid crystal molecules inside the pixel will be driven to fall down, thereby eliminating dark lines and improving the transmittance.
  • the shape of the notch 40 is a triangle or a trapezoid, and preferably, the shape of the notch 40 is a triangle.
  • the third side electrode 303 and the fourth side electrode 304 are provided with protrusions 3031 at positions corresponding to the notch 40, and the protrusions 3031 are located between the third side electrode 303 and the The fourth side electrode 304 is close to the side of the branch electrode 20, and the arrangement of the protrusion 3031 can further block the mutual interference between the liquid crystal molecules with two different alignment directions at the pixel boundary, for example, The liquid crystal molecules located on the upper side of the first main electrode 101 at the pixel boundary are tilted along the direction a, and the liquid crystal molecules located on the lower side of the first main electrode 101 are tilted along the direction b, and the directions a and b are two Kind of the opposite direction.
  • the shape of the protrusion 3031 corresponds to the shape of the notch 40, for example, both are triangular.
  • the sides of the protrusion 3031 and the sides of the notch 40 are parallel to each other, so as to better control the orientation of the liquid crystal molecules located between the notch 40 and the protrusion 3031.
  • the axis of the protrusion 3031, the axis of the notch 40, and the axis of the extension direction of the first main electrode 101 are collinear, and the shapes of the protrusion 3031 and the notch 40 are symmetrical figures, To maintain the symmetry of the pixel electrode.
  • the pixel electrode adopts a multi-domain pixel electrode design, such as a four-domain pixel electrode or an eight-domain pixel electrode.
  • the third side electrode 303 and the The fourth side electrode 304 may be a trace of the pixel electrode different from that of the first side electrode 301 and the second side electrode 302.
  • the pixel electrode may be It adopts eight-domain pixel electrode design and can be applied to large-size liquid crystal display devices.
  • the pixel electrode includes a main pixel electrode 100 and a sub-pixel electrode 200.
  • the sub-pixel electrode 200 surrounds the main pixel electrode 100.
  • the sub-pixel electrode 200 partially surrounds the main pixel electrode 100.
  • the sub-pixel electrode 200 half surrounds the main pixel electrode 100.
  • the third side electrode 303 and the fourth side electrode 304 are a part of the sub-pixel electrode 200,
  • the third side electrode 303 and the fourth side electrode 304 extend along the direction where the sub-pixel electrode 200 points to the main pixel electrode 100.
  • the main pixel electrode 100 includes the first main electrode 101, the second main electrode 102, the first side electrode 301, and the second side electrode 302.
  • the second main electrode 102 divides the main pixel electrode 100 into four alignment regions in different directions;
  • the sub-pixel electrode 200 includes a third main electrode 103 arranged in parallel with the first main electrode 101, and
  • the third main electrode 103 is a cross-shaped fourth main electrode 104, the third side electrode 303 and the fourth side electrode 304, the third main electrode 103 and the fourth main electrode 104
  • the sub-pixel electrode 200 is divided into four alignment regions in different directions.
  • the third side electrode 303 and the fourth side electrode 304 are respectively connected to both ends of the third main electrode 103 and along the The sub-pixel electrode extends in the direction of the main pixel electrode 100.
  • the common electrode line and DBS (Data Line BM Less) electrode lines and other wiring which can significantly increase the aperture ratio.
  • a gap 60 is provided between the third side electrode 303 and the fourth side electrode 304 and the first side electrode 301 and the second side electrode 302, and the gap 60 is connected to the The gap 40 is connected, and the gap 40 can block the interference of the driving force received by the liquid crystal molecules in different alignment directions in the gap, thereby eliminating dark lines and improving the transmittance.
  • the width of the gap 60 extends from both ends of the first side electrode 301 and the second side electrode 302 to a direction close to the first main electrode 101. Decrease, so as to restrain the liquid crystal molecules from falling in the same direction, improve the alignment control effect of the liquid crystal molecules, and facilitate the convergence of dark lines; for example, the width d1 of the gap 60 close to the first main electrode 101 is smaller than that located in the first The width d2 of the gap 60 at both ends of the side electrode.
  • the width of the first side electrode 301 and the second side electrode 302 can be implemented in a way that the widths of the first side electrode 301 and the second side electrode 302 increase from the two ends to the direction approaching the first main electrode 101, or the first
  • the widths of the three-side electrode 303 and the fourth side electrode 304 are implemented in a way that the widths of the three-side electrode 303 and the fourth side electrode 304 are increased from the two ends thereof to the direction close to the first main electrode 101, and the embodiment of the present invention is not limited to this.
  • the height of the protrusion 3031 in the extending direction of the first main electrode 101 is greater than or equal to 1 um, but not greater than the width of the gap corresponding to the protrusion 3031.
  • the pixel electrode further includes a control component 70.
  • the control component 70 may include a first switching element 701 and a second switching element 702, signal wiring, etc., and the control component 70 is disposed on the main pixel electrode 100 away from the On one side of the sub-pixel electrode 200, the control component 70 is electrically connected to the main pixel electrode 100 and the sub-pixel electrode 200 to provide control signals, for example, the first switching element 701 and the main pixel
  • the electrode 100 is electrically connected
  • the second switching element 702 is electrically connected to the sub-pixel electrode 200.
  • An embodiment of the present invention also provides a liquid crystal display panel, the liquid crystal display panel includes the above-mentioned pixel electrode, and the liquid crystal display panel can have the technical effect achieved by the pixel electrode, which will not be repeated here.
  • the beneficial effect is that the pixel electrode and the liquid crystal display panel provided by the embodiment of the present invention are located at the pixel boundary by providing notches at the junctions between the first side electrode and the second side electrode and the first main electrode, respectively.
  • the opposite alignment directions can be maintained without interference with each other, so as to achieve an ideal tilting direction, which can effectively improve pixel boundary dark lines and increase transmittance.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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  • Spectroscopy & Molecular Physics (AREA)
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Abstract

本发明提供一种像素电极及液晶显示面板，第一侧边电极和第二侧边电极分别连接于第一主干电极的两端，第三侧边电极和第四侧边电极分别位于第一侧边电极和第二侧边电极远离分支电极一侧；第一侧边电极及第二侧边电极分别与第一主干电极相接处设有位于第一侧边电极和第二侧边电极远离分支电极一侧的缺口，可改善像素边界暗纹。

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
多畴垂直配向式(multi-domain vertically alignment，MVA)液晶显示器凭借高对比和广视角的优势在大尺寸液晶显示中得到了广泛的应用，随着屏幕尺寸向大屏化的演化，八畴的像素电极设计以其优异的视角表现而在大尺寸显示器中受到重视，然而八畴像素电极在配向过程中，对于位于像素边界处的液晶分子而言，由于像素边界处同时存在来自主干电极与次像素电极的侧边电极的驱动力，使得该处的液晶分子取向控制效果差，当位于其中一个方向的配向力大于另一相反方向的配向力时，会导致该处的部分液晶分子会朝相反方向倾倒，实际倾倒方向与理想方向相反，从而产生暗纹并损失了穿透率。
综上所述，需要提供一种新的像素电极及液晶显示面板，来解决上述技术问题。
 技术问题
本发明提供的像素电极及液晶显示面板，解决了现有的像素电极由于位于像素边界处的部分液晶分子进行配向时，其倾倒方向与理想方向相反，导致产生暗纹、损失穿透率的技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明实施例提供一种像素电极，包括：
主干电极，包括呈十字形状设置的第一主干电极和第二主干电极；
分支电极，与所述主干电极连接，所述分支电极和所述主干电极之间具有夹角，所述夹角为45°；以及
侧边电极，包括第一侧边电极、第二侧边电极、第三侧边电极以及第四侧边电极，所述第一侧边电极和所述第二侧边电极分别连接于所述第一主干电极的两端，所述第三侧边电极和所述第四侧边电极分别位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧；
其中，所述第一侧边电极及所述第二侧边电极分别与所述第一主干电极的相接处设置有缺口，所述缺口位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧。
根据本发明实施例提供的像素电极，所述第三侧边电极和所述第四侧边电极对应所述缺口的位置设置有凸起，所述凸起位于所述第三侧边电极和所述第四侧边电极靠近所述分支电极的一侧。
根据本发明实施例提供的像素电极，所述凸起的轴线、所述缺口的轴线以及所述第一主干电极的延伸方向的轴线共线。
根据本发明实施例提供的像素电极，所述凸起的形状和所述缺口的形状对应。
根据本发明实施例提供的像素电极，所述像素电极还包括多条与所述分支电极相互间隔排列且相互平行的狭缝，其中，所述缺口的侧边平行于所述狭缝的延伸方向。
根据本发明实施例提供的像素电极，所述缺口的形状为三角形或梯形。
根据本发明实施例提供的像素电极，所述像素电极包括主像素电极和次像素电极；
所述主像素电极包括所述第一主干电极、所述第二主干电极、所述第一侧边电极以及所述第二侧边电极；
所述次像素电极包括与所述第一主干电极平行设置的第三主干电极、与所述第三主干电极呈十字形状交叉设置的第四主干电极、所述第三侧边电极以及所述第四侧边电极，所述第三侧边电极和所述第四侧边电极分别连接于所述第三主干电极的两端并沿所述次像素电极指向所述主像素电极的方向延伸，所述三侧边电极和所述第四侧边电极分别和所述第一侧边电极及所述第二侧边电极之间设置有空隙，所述空隙与所述缺口连通。
根据本发明实施例提供的像素电极，所述空隙的宽度分别沿所述第一侧边电极和所述第二侧边电极两端至靠近所述第一主干电极的方向递减。
根据本发明实施例提供的像素电极，所述像素电极还包括控制组件，所述控制组件设置于所述主像素电极远离所述次像素电极的一侧，所述控制组件分别与所述主像素电极和所述次像素电极电性连接。
本发明实施例提供一种像素电极，包括：
主干电极，包括呈十字形状设置的第一主干电极和第二主干电极；
分支电极，与所述主干电极连接，所述分支电极和所述主干电极之间具有夹角；以及
侧边电极，包括第一侧边电极、第二侧边电极、第三侧边电极以及第四侧边电极，所述第一侧边电极和所述第二侧边电极分别连接于所述第一主干电极的两端，所述第三侧边电极和所述第四侧边电极分别位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧；
其中，所述第一侧边电极及所述第二侧边电极分别与所述第一主干电极的相接处设置有缺口，所述缺口位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧。
根据本发明实施例提供的像素电极，所述第三侧边电极和所述第四侧边电极对应所述缺口的位置设置有凸起，所述凸起位于所述第三侧边电极和所述第四侧边电极靠近所述分支电极的一侧。
根据本发明实施例提供的像素电极，所述凸起的轴线、所述缺口的轴线以及所述第一主干电极的延伸方向的轴线共线。
根据本发明实施例提供的像素电极，所述凸起的形状和所述缺口的形状对应。
根据本发明实施例提供的像素电极，所述凸起在所述第一主干电极的延伸方向上的高度大于或等于1um。
根据本发明实施例提供的像素电极，所述像素电极还包括多条与所述分支电极相互间隔排列且相互平行的狭缝，其中，所述缺口的侧边平行于所述狭缝的延伸方向。
根据本发明实施例提供的像素电极，所述缺口的形状为三角形或梯形。
根据本发明实施例提供的像素电极，所述像素电极包括主像素电极和次像素电极；
所述主像素电极包括所述第一主干电极、所述第二主干电极、所述第一侧边电极以及所述第二侧边电极；
所述次像素电极包括与所述第一主干电极平行设置的第三主干电极、与所述第三主干电极呈十字形状交叉设置的第四主干电极、所述第三侧边电极以及所述第四侧边电极，所述第三侧边电极和所述第四侧边电极分别连接于所述第三主干电极的两端并沿所述次像素电极指向所述主像素电极的方向延伸，所述三侧边电极和所述第四侧边电极分别和所述第一侧边电极及所述第二侧边电极之间设置有空隙，所述空隙与所述缺口连通。
根据本发明实施例提供的像素电极，所述空隙的宽度分别沿所述第一侧边电极和所述第二侧边电极两端至靠近所述第一主干电极的方向递减。
根据本发明实施例提供的像素电极，所述像素电极还包括控制组件，所述控制组件设置于所述主像素电极远离所述次像素电极的一侧，所述控制组件分别与所述主像素电极和所述次像素电极电性连接。
本发明实施例提供一种液晶显示面板，包括上述像素电极。
 有益效果
本发明的有益效果为：本发明提供的像素电极及液晶显示面板，通过在第一侧边电极及第二侧边电极分别与第一主干电极的相接处设置有缺口，使得位于此像素边界处相对于第一主干电极上下两侧的液晶分子进行液晶配向时，能够保持相反的配向方向，不受彼此干扰，从而达到理想的倾倒方向，可有效改善像素边界暗纹，提高穿透率。
 附图说明
为了更清楚地说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介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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为本发明实施例提供的一种像素电极的平面结构示意图；
图2为图1中A区域的放大示意图；
图3为本发明实施例提供的另一种像素电极的平面结构示意图；
图4为图3中B区域的放大示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
现有技术的像素电极及液晶显示面板，由于位于像素边界处的部分液晶分子进行配向时，其实际倾倒方向与理想方向相反，导致产生暗纹及损失穿透率，本发明实施例能够解决该缺陷。
参考图1、图2，本发明实施例提供的像素电极包括主干电极10、分支电极20以及侧边电极30，所述主干电极10包括呈十字形状设置的第一主干电极101和第二主干电极102；所述分支电极20与所述主干电极10连接，所述分支电极20和所述主干电极10之间具有夹角，所述分支电极20与所述第一主干电极101之间的夹角可以为30°～60°，优选地，所述分支电极20与所述第一主干电极101之间的夹角为45°。
所述侧边电极30包括第一侧边电极301、第二侧边电极302、第三侧边电极303以及第四侧边电极304，所述第一侧边电极301和所述第二侧边电极302分别连接于所述第一主干电极101的两端，所述第三侧边电极303和所述第四侧边电极304分别位于所述第一侧边电极301和所述第二侧边电极302远离所述分支电极20的一侧，可以理解的是，所述第一主干电极101与所述第一侧边电极301及所述第二侧边电极302的相接处即为所述像素电极的像素边界处，位于此像素边界处的部分液晶分子进行配向时所受到的驱动力方向相反。
在本发明实施例中，所述第一侧边电极301及所述第二侧边电极302分别与所述第一主干电极101的相接处均设置有缺口40，所述缺口40位于所述第一侧边电极301和所述第二侧边电极302远离所述分支电极20的一侧，能够使得位于像素边界处的具有两个不同配向方向的液晶分子间彼此不受干扰，以良好地控制液晶分子的倾倒方向，避免出现液晶分子沿与理想倾倒方向相反的方向倾倒的情况产生，从而消除暗影，提高透光率。
具体地，所述像素电极还包括多条与所述分支电极20相互间隔排列且相互平行的狭缝50，其中，所述缺口40的侧边平行于所述狭缝50的延伸方向，以使液晶分子在所述缺口40中的倾倒方向与相邻配向区域的所述狭缝50中的液晶分子的倾倒方向保持一致，以使所述缺口40能够起到所述狭缝50的作用，位于像素边界处的液晶分子倾倒后，会带动像素内部的液晶分子顺势倒下，从而消除暗纹，提高穿透率。
可选地，所述缺口40的形状为三角形或梯形，优选地，所述缺口40的形状为三角形。
进一步地，所述第三侧边电极303和所述第四侧边电极304对应所述缺口40的位置设置有凸起3031，所述凸起3031位于所述第三侧边电极303和所述第四侧边电极304靠近所述分支电极20的一侧，所述凸起3031的设置能够进一步阻断位于所述像素边界处的具有两个不同配向方向的液晶分子间的互相干扰，例如，所述像素边界处位于所述第一主干电极101上侧的液晶分子沿方向a进行倾倒，位于所述第一主干电极101下侧的液晶分子沿方向b进行倾倒，方向a和方向b为两种相反方向。
优选地，所述凸起3031的形状和所述缺口40的形状对应，例如均为三角形。所述凸起3031的侧边与所述缺口40的侧边相互平行，以更好地控制位于所述缺口40和所述凸起3031之间的液晶分子的取向。
优选地，所述凸起3031的轴线、所述缺口40的轴线以及所述第一主干电极101的延伸方向的轴线共线，所述凸起3031和所述缺口40的形状均为对称图形，以保持所述像素电极的对称性。
需要说明的是，所述像素电极采用多畴像素电极设计，例如四畴像素电极或八畴像素电极，当所述像素电极采用四畴像素电极时，所述第三侧边电极303和所述第四侧边电极304可以为所述像素电极不同于所述第一侧边电极301和所述第二侧边电极302的走线，优选地，在本发明实施例中，所述像素电极可以采用八畴像素电极设计，可应用到大尺寸液晶显示装置中。
具体地，所述像素电极包括主像素电极100和次像素电极200，所述次像素电极200包围所述主像素电极100，例如，所述次像素电极200部分包围所述主像素电极100，优选是所述次像素电极200半包围所述主像素电极100，在本发明实施例中，所述第三侧边电极303和所述第四侧边电极304为所述次像素电极200的一部分，所述第三侧边电极303和所述第四侧边电极304沿所述次像素电极200指向所述主像素电极100的方向延伸。
所述主像素电极100包括所述第一主干电极101、所述第二主干电极102、所述第一侧边电极301以及所述第二侧边电极302，所述第一主干电极101和所述第二主干电极102将所述主像素电极100分为四个不同方向的配向区域；所述次像素电极200包括与所述第一主干电极101平行设置的第三主干电极103、与所述第三主干电极103呈十字形状交叉设置的第四主干电极104、所述第三侧边电极303以及所述第四侧边电极304，所述第三主干电极103和所述第四主干电极104将所述次像素电极200分为四个不同方向的配向区域，所述第三侧边电极303和所述第四侧边电极304分别连接于所述第三主干电极103的两端并沿所述次像素电极指向所述主像素电极100的方向延伸，此种像素电极相比于一般的像素电极，可省去公共电极线及DBS(Data Line BM Less)电极线等走线，从而可显著增大开口率。
所述第三侧边电极303及所述第四侧边电极304分别和所述第一侧边电极301及所述第二侧边电极302之间设置有空隙60，所述空隙60与所述缺口40连通，所述缺口40能够阻断位于所述空隙中不同配向方向的液晶分子所受到的驱动力出现干扰的情况，从而消除暗纹，提高穿透率。
进一步地，如图3、图4所示，所述空隙60的宽度分别沿所述第一侧边电极301和所述第二侧边电极302两端至靠近所述第一主干电极101的方向递减，从而可以约束液晶分子沿同一方向倾倒，提升液晶分子的取向控制效果，有利于暗纹收敛；例如，靠近所述第一主干电极101的所述空隙60的宽度d1小于位于所述第一侧边电极两端的所述空隙60的宽度d2。
具体地，可以采取所述第一侧边电极301和所述第二侧边电极302的宽度从其两端至靠近所述第一主干电极101的方向递增的方式实现，也可以采取所述第三侧边电极303和所述第四侧边电极304的宽度从其两端至靠近所述第一主干电极101的方向递增的方式实现，本发明实施例不以此为限。
具体地，所述凸起3031在所述第一主干电极101的延伸方向上的高度大于或等于1um，但不得大于对应所述凸起3031的所述空隙的宽度。
所述像素电极还包括控制组件70，所述控制组件70可以包括第一开关元件701和第二开关元件702以及信号走线等，所述控制组件70设置于所述主像素电极100远离所述次像素电极200的一侧，所述控制组件70分别与所述主像素电极100和所述次像素电极200电性连接以提供控制信号，例如，所述第一开关元件701与所述主像素电极100电性连接，所述第二开关元件702与所述次像素电极200电性连接。
本发明实施例还提供一种液晶显示面板，所述液晶显示面板包括上述像素电极，所述液晶显示面板可具有所述像素电极达到的技术效果，在此不再赘述。
有益效果为：本发明实施例提供的像素电极及液晶显示面板，通过在第一侧边电极及第二侧边电极分别与第一主干电极的相接处设置有缺口，使得位于此像素边界处相对于第一主干电极上下两侧的液晶分子进行液晶配向时，能够保持相反的配向方向，不受彼此干扰，从而达到理想的倾倒方向，可有效改善像素边界暗纹，提高穿透率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种像素电极，包括：
    主干电极，包括呈十字形状设置的第一主干电极和第二主干电极；
    分支电极，与所述主干电极连接，所述分支电极和所述主干电极之间具有夹角，所述夹角为45°；以及
    侧边电极，包括第一侧边电极、第二侧边电极、第三侧边电极以及第四侧边电极，所述第一侧边电极和所述第二侧边电极分别连接于所述第一主干电极的两端，所述第三侧边电极和所述第四侧边电极分别位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧；
    其中，所述第一侧边电极及所述第二侧边电极分别与所述第一主干电极的相接处设置有缺口，所述缺口位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧。
  2. 根据权利要求1所述的像素电极，其中所述第三侧边电极和所述第四侧边电极对应所述缺口的位置设置有凸起，所述凸起位于所述第三侧边电极和所述第四侧边电极靠近所述分支电极的一侧。
  3. 根据权利要求2所述的像素电极，其中所述凸起的轴线、所述缺口的轴线以及所述第一主干电极的延伸方向的轴线共线。
  4. 根据权利要求2所述的像素电极，其中所述凸起的形状和所述缺口的形状对应。
  5. 根据权利要求1所述的像素电极，其中所述像素电极还包括多条与所述分支电极相互间隔排列且相互平行的狭缝，其中，所述缺口的侧边平行于所述狭缝的延伸方向。
  6. 根据权利要求5所述的像素电极，其中所述缺口的形状为三角形或梯形。
  7. 根据权利要求1所述的像素电极，其中所述像素电极包括主像素电极和次像素电极；
    所述主像素电极包括所述第一主干电极、所述第二主干电极、所述第一侧边电极以及所述第二侧边电极；
    所述次像素电极包括与所述第一主干电极平行设置的第三主干电极、与所述第三主干电极呈十字形状交叉设置的第四主干电极、所述第三侧边电极以及所述第四侧边电极，所述第三侧边电极和所述第四侧边电极分别连接于所述第三主干电极的两端并沿所述次像素电极指向所述主像素电极的方向延伸，所述三侧边电极和所述第四侧边电极分别和所述第一侧边电极及所述第二侧边电极之间设置有空隙，所述空隙与所述缺口连通。
  8. 根据权利要求7所述的像素电极，其中所述空隙的宽度分别沿所述第一侧边电极和所述第二侧边电极两端至靠近所述第一主干电极的方向递减。
  9. 根据权利要求7所述的像素电极，其中所述像素电极还包括控制组件，所述控制组件设置于所述主像素电极远离所述次像素电极的一侧，所述控制组件分别与所述主像素电极和所述次像素电极电性连接。
  10. 一种像素电极，包括：
    主干电极，包括呈十字形状设置的第一主干电极和第二主干电极；
    分支电极，与所述主干电极连接，所述分支电极和所述主干电极之间具有夹角；以及
    侧边电极，包括第一侧边电极、第二侧边电极、第三侧边电极以及第四侧边电极，所述第一侧边电极和所述第二侧边电极分别连接于所述第一主干电极的两端，所述第三侧边电极和所述第四侧边电极分别位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧；
    其中，所述第一侧边电极及所述第二侧边电极分别与所述第一主干电极的相接处设置有缺口，所述缺口位于所述第一侧边电极和所述第二侧边电极远离所述分支电极的一侧。
  11. 根据权利要求10所述的像素电极，其中所述第三侧边电极和所述第四侧边电极对应所述缺口的位置设置有凸起，所述凸起位于所述第三侧边电极和所述第四侧边电极靠近所述分支电极的一侧。
  12. 根据权利要求11所述的像素电极，其中所述凸起的轴线、所述缺口的轴线以及所述第一主干电极的延伸方向的轴线共线。
  13. 根据权利要求11所述的像素电极，其中所述凸起的形状和所述缺口的形状对应。
  14. 根据权利要求11所述的像素电极，其中所述凸起在所述第一主干电极的延伸方向上的高度大于或等于1um。
  15. 根据权利要求10所述的像素电极，其中所述像素电极还包括多条与所述分支电极相互间隔排列且相互平行的狭缝，其中，所述缺口的侧边平行于所述狭缝的延伸方向。
  16. 根据权利要求15所述的像素电极，其中所述缺口的形状为三角形或梯形。
  17. 根据权利要求10所述的像素电极，其中所述像素电极包括主像素电极和次像素电极；
    所述主像素电极包括所述第一主干电极、所述第二主干电极、所述第一侧边电极以及所述第二侧边电极；
    所述次像素电极包括与所述第一主干电极平行设置的第三主干电极、与所述第三主干电极呈十字形状交叉设置的第四主干电极、所述第三侧边电极以及所述第四侧边电极，所述第三侧边电极和所述第四侧边电极分别连接于所述第三主干电极的两端并沿所述次像素电极指向所述主像素电极的方向延伸，所述三侧边电极和所述第四侧边电极分别和所述第一侧边电极及所述第二侧边电极之间设置有空隙，所述空隙与所述缺口连通。
  18. 根据权利要求17所述的像素电极，其中所述空隙的宽度分别沿所述第一侧边电极和所述第二侧边电极两端至靠近所述第一主干电极的方向递减。
  19. 根据权利要求17所述的像素电极，其中所述像素电极还包括控制组件，所述控制组件设置于所述主像素电极远离所述次像素电极的一侧，所述控制组件分别与所述主像素电极和所述次像素电极电性连接。
  20. 一种液晶显示面板，包括权利要求10所述的像素电极。
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