WO2017063243A1 - 一种电极结构以及液晶显示面板 - Google Patents

一种电极结构以及液晶显示面板 Download PDF

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WO2017063243A1
WO2017063243A1 PCT/CN2015/094226 CN2015094226W WO2017063243A1 WO 2017063243 A1 WO2017063243 A1 WO 2017063243A1 CN 2015094226 W CN2015094226 W CN 2015094226W WO 2017063243 A1 WO2017063243 A1 WO 2017063243A1
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electrode
trunk
electrodes
branch
branch electrodes
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PCT/CN2015/094226
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English (en)
French (fr)
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姚晓慧
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深圳市华星光电技术有限公司
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Priority to US14/907,961 priority Critical patent/US10551688B2/en
Publication of WO2017063243A1 publication Critical patent/WO2017063243A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to an electrode structure and a liquid crystal display panel.
  • Liquid crystal displays have replaced cathode ray tube displays as mainstream displays in everyday display.
  • the HVA liquid crystal display panel solidifies a liquid crystal layer having a certain pretilt angle on the surface layer of the guiding film by photo-alignment and power-on, so as to omit the conventional rubbing alignment process.
  • FIG. 1 shows a schematic structural view of a conventional HVA pixel electrode.
  • the conventional conventional HVA pixel electrode is mainly divided into four regions, wherein the two main electrodes 101 are formed by vertically intersecting to form four display regions.
  • a plurality of branch electrodes 102 are disposed at equal intervals in each display area, and the widths of the branch electrodes 102 are equal, and the angle between the branch electrodes 102 and the corresponding main electrode 101 is 45 degrees.
  • the existing HVA pixel electrode has two parts of the pixel electrode (a total of eight display areas). One part is the main display area and the other part is the auxiliary display area.
  • Such a liquid crystal display panel can improve the problem of large viewing angle distortion by controlling the voltages of the two display areas, and this structure is generally called an LCS (ie, Low Color Shift) structure.
  • the conventional LCS structure improves the color distortion problem existing in the large viewing angle display of the liquid crystal display panel.
  • the pixel electrode of such a liquid crystal display panel is divided into two display regions, this inevitably leads to a decrease in panel aperture ratio.
  • the effective potential of the liquid crystal in the auxiliary display region is lowered, thereby causing the display brightness of the region to decrease, thereby affecting the transmittance of the panel.
  • an embodiment of the present invention first provides an electrode structure of a liquid crystal display panel, including:
  • each of the branch electrodes is connected to at least one of the first trunk electrode and the second trunk electrode and forms a trunk-twig angle with the corresponding trunk electrode;
  • the angle of the trunk-twig of the plurality of branch electrodes is gradually decreased or increased stepwise along a direction away from the intersection of the trunk electrodes.
  • the widths at different locations of the first main electrode and/or the second main electrode are equal.
  • the plurality of branch electrodes comprise four central branch electrodes, and the four central branch electrodes are respectively located in four display regions alternately formed by the first trunk electrode and the second trunk electrode
  • the inside of the four central branch electrodes has an angle of 45°.
  • the plurality of branch electrodes are arranged symmetrically with respect to the first trunk electrode and the second trunk electrode.
  • the stem-trunk angle of the plurality of branch electrodes is gradually reduced in a direction away from the intersection of the trunk electrodes.
  • the plurality of branch electrodes have widths equal to each other.
  • each of the branch electrodes is a strip electrode, wherein the strip electrodes have equal widths at respective positions.
  • the trunk-to-branch angle of the plurality of branch electrodes is increased stepwise along a direction away from the intersection of the trunk electrodes.
  • the width thereof gradually decreases in a direction away from the intersection of the trunk electrodes.
  • the present invention also provides a liquid crystal display panel, wherein the electrode in the liquid crystal display panel adopts the electrode structure as described in any one of the above.
  • the electrode structure provided by the present invention no longer configures the stem-trunk angle of all the branch electrodes to be 45° like the electrode structure of the existing 4 display regions, but the branch electrodes at different positions.
  • the stem-trunk angles are configured to different sizes, thereby optimizing the electric field distribution of the electrodes, thereby optimizing the orientation of the liquid crystal, thus ensuring The large aperture viewing performance is improved based on the aperture ratio.
  • FIG. 1 is a schematic structural view of a conventional HVA pixel electrode
  • FIG. 2 is a schematic structural view of a pixel electrode according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a pixel electrode according to another embodiment of the present invention.
  • FIGS. 2 and 3 are comparison of performance of a conventional HVA pixel electrode and the pixel electrode provided in FIGS. 2 and 3.
  • the electrode structure provided by the present invention redesigns the electrode structure of the existing 4 domain (display area), thereby ensuring the aperture ratio. Based on the improvement of large viewing angle display performance.
  • the strip electrodes included in the pixel structure of the conventional four display regions are arranged at an equal interval of 45°.
  • the electrode structure provided by the present invention redesigns the electrode structure of the existing 4 display regions by adjusting the strip shape in the electrode structure.
  • the arrangement of the electrodes is such that the arrangement of the strip electrodes is arranged at a non-equal interval or the radial arrangement of the non-equal strip electrodes is performed to optimize the electric field distribution of the electrode structure, thereby optimizing the orientation of the liquid crystal, thereby ensuring the aperture ratio.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • Fig. 2 is a schematic view showing the structure of an electrode provided in the present embodiment.
  • the electrode structure is a pixel electrode structure.
  • the electrode structure can also be applied to other reasonable electrodes in the liquid crystal display panel, and the present invention is not limited thereto.
  • the electrode structure provided in this embodiment includes a first trunk electrode 201, a second trunk electrode 202, and a plurality of branch electrodes.
  • the first trunk electrode 201 and the second trunk electrode 202 intersect perpendicularly, thus forming four display regions.
  • the intersection of the first main electrode 201 and the second main electrode 202 is the intersection of the main electrodes.
  • the widths of the first trunk electrode 201 and the second trunk electrode 202 are equal to each other, and are all strip electrodes of equal width.
  • first trunk electrode and/or the second trunk electrode may also be other reasonable structures, and the invention is not limited thereto.
  • the widths of the first trunk electrode 201 and the second trunk electrode 202 may also be different from each other, and the first trunk electrode 201 and/or the second trunk electrode 202 may also have a width change. Strip electrode.
  • the region 203 is taken as an example to further describe the electrode structure provided in this embodiment.
  • a first branch electrode 204a, a second branch electrode 204b, a third branch electrode 204c, a fourth branch electrode 204d, and a fifth branch electrode 204e are arranged in the first display region 203.
  • One end of each of the branch electrodes is connected to at least one of the first trunk electrode 201 and the second branch electrode 202 and forms a corresponding trunk-twig angle with the corresponding trunk electrode.
  • the angle of the trunk-trunk is an angle formed by an edge of each branch electrode away from the intersection of the trunk and a direction of the corresponding trunk electrode along a direction away from the intersection of the trunk electrodes.
  • each of the branch electrodes is a strip electrode, wherein the widths of the respective portions of the strip electrodes are equal.
  • each of the branch electrodes may also adopt a strip electrode having an unequal width (for example, a width at a middle position of the branch electrode is wider and a width at both end positions is narrow), The invention is not limited to this.
  • the first branch electrode 204a serves as a central branch electrode in the first display area 203, and one end thereof is simultaneously connected to the first trunk electrode 201 and the second trunk electrode 202 (ie, one end of the first branch electrode 204a is connected to the intersection of the trunk electrode ).
  • the trunk-twig angle ⁇ 1 of the first branch electrode 204a is preferably configured to be 45°.
  • the electrode structure provided in this embodiment adopts a structural form of unequal spacing.
  • the stem-trunk angle of the branch electrodes is gradually reduced along the direction away from the intersection of the main electrodes.
  • one end of the second branch electrode 204b is connected to the first trunk electrode 201, and the trunk-twig angle ⁇ 2 is smaller than the stem-trunk angle ⁇ of the first branch electrode 204a. 1 .
  • one end of the third branch electrode 204c is also connected to the first trunk electrode 201, and the trunk-twig angle ⁇ 3 is smaller than the trunk-branch angle ⁇ 2 of the second branch electrode 204b.
  • the trunk-twig angle ⁇ 2 is preferably configured to be 30°
  • the trunk-twig angle ⁇ 3 is preferably configured to be 20°.
  • the angle of each trunk-trunk can also adopt other reasonable values, and the present invention is not limited thereto, but it is required to ensure the angle of the trunk-trench along the intersection away from the trunk electrode. Decrease step by step.
  • the trunk-twig angle ⁇ 2 of the second branch electrode 204b may also be configured to other reasonable values in [27°, 35°], and the third branch electrode 204c
  • the trunk-twig angle ⁇ 3 can also be configured to other reasonable values in [15°, 23°].
  • One ends of the fourth branch electrode 204d and the fifth branch electrode 204e are connected to the second trunk 202, wherein the trunk-branch angle ⁇ 4 of the fourth branch electrode 204d is smaller than the trunk-trunk angle ⁇ 1 The remaining angle (since the present embodiment, the trunk-twig angle ⁇ 1 is 45°, so the angle of the trunk-twig angle ⁇ 1 is also 45°), and the trunk-branch of the fifth branch electrode 204e
  • the dry angle ⁇ 5 is smaller than the trunk-twig angle ⁇ 4 .
  • the trunk-twig angle ⁇ 4 and the trunk-twig angle ⁇ 5 may be equal to the trunk-twig angle ⁇ 2 and the trunk-twig angle ⁇ 3 , respectively. It may vary, and the invention is not limited thereto.
  • branch electrodes are disposed in each display area for convenience of description.
  • branches included in each display area according to actual needs.
  • the number of dry electrodes can also be configured to other reasonable values according to actual needs, and the invention is not limited thereto.
  • the electrode structure provided in this embodiment When the electrode structure provided in this embodiment is powered, since there are various spacings between the branch electrodes in the same display region, the electric field strength formed by the branch electrodes is different, so that the liquid crystal molecules can be formed differently.
  • the pretilt angle helps to improve the problem of the big vision.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • Fig. 3 is a schematic view showing the structure of an electrode provided in the present embodiment.
  • the electrode structure is a pixel electrode structure.
  • the electrode structure can also be applied to other reasonable electrodes in the liquid crystal display panel, and the present invention is not limited thereto.
  • the electrode structure provided in this embodiment includes a first main electrode 301, a second main electrode 302, and a plurality of branch electrodes.
  • the first trunk electrode 301 and the second trunk electrode 302 intersect perpendicularly, thereby forming four display regions.
  • the intersection of the first main electrode 201 and the second main electrode 202 is the intersection of the main electrodes. Since the structure and arrangement of the branch electrodes are symmetrical with respect to the first trunk electrode 301 and the second trunk electrode 302 in the four display regions, for the description, the first display region 303 is taken as an example below.
  • the electrode structure provided in the examples is further illustrated.
  • a first branch electrode 304a, a second branch electrode 304b, a third branch electrode 304c, a fourth branch electrode 304d, and a fifth branch electrode 304e are arranged in the first display region 303.
  • One end of each branch electrode is connected to at least one of the first trunk electrode 301 and the second branch electrode 302 and forms a corresponding trunk-trend angle with the corresponding trunk electrode.
  • the angle of the trunk-trunk is the angle formed by the edge of each branch electrode away from the intersection of the trunk and the direction of the corresponding trunk electrode along the intersection away from the trunk electrode.
  • the first branch electrode 304a serves as a central branch electrode in the first display region 203, and one end thereof is simultaneously connected to the first trunk electrode 301 and the second trunk electrode 302 (ie, one end of the first branch electrode 304a is connected to the intersection of the trunk electrode ).
  • the stem-trunk angle ⁇ 1 of the first branch electrode 303a is preferably configured to be 45°.
  • the electrode structure provided in this embodiment adopts a structural form of unequal spacing.
  • the angle of the trunk-twig of these branch electrodes increases stepwise along the direction away from the intersection of the trunk electrodes.
  • each of the branch electrodes is a strip electrode, and for each electrode, the width thereof gradually decreases away from the intersection of the main electrode. That is, the width of the branch electrode near the intersection of the main electrode is wider, and the width away from the intersection of the main electrode is narrower.
  • the trunk-twig angle ⁇ 2 is preferably configured to be 60°
  • the trunk-twig angle ⁇ 3 is preferably configured to be 70°.
  • the angle of each trunk-trunk can also adopt other reasonable values, and the present invention is not limited thereto, but it is required to ensure the angle of the trunk-trench along the intersection away from the trunk electrode. Increase step by step.
  • the trunk-twig angle ⁇ 2 of the second branch electrode 304b may also be configured to other reasonable values of [55°, 62°], while the trunk of the third branch electrode 304c
  • the branch angle ⁇ 3 can also be configured to other reasonable values in [65°, 73°].
  • One end of the fourth branch electrode 304d and the fifth branch electrode 304e are connected to the second trunk electrode 302, wherein the trunk-branch angle ⁇ 4 of the fourth branch electrode 304d is greater than the first branch electrode 304a and a second main electrode stem 302 is formed - branches angle ⁇ '1, a fifth electrode 304e branches backbone - the branches is greater than the angle ⁇ 5 backbone - branches angle ⁇ 4.
  • the trunk-twig angle ⁇ 4 and the trunk-twig angle ⁇ 5 may be respectively combined with the trunk-twig angle ⁇ 2 and the trunk according to actual needs.
  • the branch angles ⁇ 3 are equal and may not be equal, and the present invention is not limited thereto.
  • each display area for convenience of description.
  • the number of branch electrodes included in each display area is described. is acceptable It is configured to other reasonable values according to actual needs, and the invention is not limited to this.
  • Fig. 4 shows a comparison of the performance of the prior electrode structure and the electrode structure provided by the present invention. It can be seen from FIG. 4 that the electrode structure provided in the first embodiment and the second embodiment can effectively improve the large-view role of the liquid crystal display panel compared with the prior art.
  • the present invention also provides a liquid crystal display panel using the above electrode structure.
  • the electrode structure provided by the present invention no longer configures the stem-trunk angle of all the branch electrodes to 45° like the electrode structure of the existing 4 display regions, but
  • the stem-trunk angles of the branch electrodes at different positions are configured to different sizes, thereby optimizing the electric field distribution of the electrodes, thereby optimizing the orientation of the liquid crystal, thereby improving the large viewing angle display on the basis of ensuring the aperture ratio. performance.

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Abstract

一种电极结构以及液晶显示面板，该电极结构包括：第一主干电极（201, 301）和第二主干电极（202, 302），第一主干电极（201, 301）和第二主干电极（202, 302）相交，并形成有主干电极交点；多个枝干电极（204a-204e, 304a-304e）间隔设置，各个枝干电极（204a-204e, 304a-304e）的一端至少与第一主干电极（201, 301）和第二主干电极（202, 302）之一连接并与对应主干电极（201, 301, 202, 302）形成主干-枝干夹角（θ1-θ3）；其中，沿远离主干电极（201, 301, 202, 302）交点方向，多个枝干电极（204a-204e, 304a-304e）的主干-枝干夹角（θ1-θ3）逐级减小或逐级增大。该电极结构体通过优化电极的电场分布，使得液晶的指向得以优化，这样也就在保证开口率的基础上改善了大视角显示性能。

Description

一种电极结构以及液晶显示面板
相关技术的交叉引用
本申请要求享有2015年10月15日提交的名称为：“一种电极结构以及液晶显示面板”的中国专利申请CN 201510663153.9的优先权，其全部内容通过引用并入本文中。
技术领域
本发明涉及液晶显示技术领域，具体地说，涉及一种电极结构以及液晶显示面板。
背景技术
随着薄膜晶体管液晶显示器的发展和工业技术的进步，液晶显示器的制造工艺日益完善，其制造成本也越来越低。液晶显示器已经取代了阴极射线管显示器成为日常显示领域的主流显示器。
HVA液晶显示面板作为VA液晶显示面板的一种分支，其采用光配向加电的方式在导向膜的表层固化出具有一定预倾角的液晶层，以省略传统的摩擦取向工艺。
图1示出了现有的HVA像素电极的结构示意图。从图1中可以看出，目前常规的HVA像素电极主要分为4区域，其中，两个主干电极101通过垂直相交地设置而形成了四个显示区域。而在每个显示区域中等间隔设置有多条分支电极102，这些分支电极102的宽度相等，其与相应主干电极101的夹角均为45度。
由于在不同视角下观察到的液晶指向不同，因此也就会导致大视角下观察到的颜色出现失真。为改善大视角颜色失真的问题，现有HVA像素电极是将像素电极成两部分(共8个显示区域)。其中一部分为主显示区域，另一部分为辅显示区域。这种液晶显示面板可以通过控制两个显示区域的电压来改善大视角失真的问题，而这种结构一般称之为LCS(即Low Color Shift)结构。
常规的LCS结构改善了液晶显示面板的大视角显示存在的颜色失真问题。然而，由于这类液晶显示面板的像素电极被分成了两个显示区域，这必然会导致面板开口率的降低。并且，对于这类液晶显示面板，辅显示区域的液晶的有效电位会降低，从而导致其该区显示亮度下降，进而影响面板的穿透率。
发明内容
本发明所要解决的技术问题是为了在保证开口率的基础上改善现有的液晶显示面板所存在的大视角色偏现象。为解决上述问题，本发明的一个实施例首先提供了一种液晶显示面板的电极结构，包括：
第一主干电极和第二主干电极，所述第一主板电极和第二主干电极相交，并形成有主干电极交点；
多个枝干电极，所述多个枝干间隔设置，各个枝干电极的一端至少与所述第一主干电极和第二主干电极之一连接并与对应主干电极形成主干-枝干夹角；
其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小或逐级增大。
根据本发明的一个实施例，所述第一主干电极和/或第二主干电极的不同位置处的宽度是相等的。
根据本发明的一个实施例，所述多个枝干电极包括四条中心枝干电极，所述四条中心枝干电极分别位于由所述第一主干电极和第二主干电极交错形成的四个显示区域内，其中，所述四条中心枝干电极的主干-枝干夹角为45°。
根据本发明的一个实施例，所述多个枝干电极关于所述第一主干电极和第二主干电极对称排布。
根据本发明的一个实施例，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小。
根据本发明的一个实施例，所述多个枝干电极的宽度彼此相等。
根据本发明的一个实施例，所述各个枝干电极为条状电极，其中，所述条状电极各个位置处的宽度相等。
根据本发明的一个实施例，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级增大。
根据本发明的一个实施例，对于所述各个枝干电极，其宽度沿远离所述主干电极交点方向逐渐减小。
本发明还提供了一种液晶显示面板，所述液晶显示面板中的电极采用的是如上任一项所述的电极结构。
本发明所提供的电极结构不再像现有的4显示区域的电极结构那样将所有的枝干电极的主干-枝干夹角均配置为45°，而是将不同位置处的枝干电极的主干-枝干夹角配置为不同大小，从而优化了电极的电场分布，进而使得液晶的指向得以优化，这样也就在保 证开口率的基础上改善了大视角显示性能。
本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要的附图做简单的介绍：
图1是现有的HVA像素电极的结构示意图；
图2是根据本发明一个实施例的像素电极的结构示意图；
图3是根据本发明另一个实施例的像素电极的结构示意图；
图4是现有的HVA像素电极与图2和图3所提供的像素电极的性能对比图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成技术效果的实现过程能充分理解并据以实施。需要说明的是，只要不构成冲突，本发明中的各个实施例以及各实施例中的各个特征可以相互结合，所形成的技术方案均在本发明的保护范围之内。
同时，在以下说明中，出于解释的目的而阐述了许多具体细节，以提供对本发明实施例的彻底理解。然而，对本领域的技术人员来说显而易见的是，本发明可以不用这里的具体细节或者所描述的特定方式来实施。
为了实现在保证开口率的技术上改善液晶显示面板的大视角显示性能，本发明所提供的电极结构对现有的4domain(显示区域)的的电极结构进行了重新优化设计，从而在保证开口率的基础上来改善大视角显示性能。
如图1所示，常规的4显示区域的像素结构所包含的条状电极为等间距地呈45°排列。为了能够在保证开口率的基础上改善液晶显示面板的大视角显示性能，本发明所提供的电极结构对现有的4显示区域的的电极结构进行了重新优化设计，通过调整电极结构中条状电极的排布方式，将条状电极的排布变为非等间距排列或进行非等条状电极的放射状排列，以优化电极结构的电场分布，进而优化液晶的指向，从而在保证开口率的基础上改善大视角显示性能。
为了更加清楚地说明本发明所提供的电极结构的原理及其所能够达到的效果，以下 分别通过不同的实施例来对本发明所提供的电极结构作进一步地阐述。
实施例一：
图2示出了本实施例所提供的电极结构的示意图。其中，本实施例中，该电极结构为像素电极结构。当然，在本发明的其他实施例中，该电极结构还可以应用于液晶显示面板中其他合理的电极中，本发明不限于此。
本实施例所提供的电极结构包括：第一主干电极201、第二主干电极202和多个枝干电极。其中，第一主干电极201与第二主干电极202垂直相交，这样便形成了四个显示区域。第一主干电极201与第二主干电极202的相交点即为主干电极交点。本实施例中，第一主干电极201与第二主干电极202的宽度彼此相等，并且均为等宽条状电极。
当然，在本发明的其他实施例中，第一主干电极和/或第二主干电极还可以为其他合理结构，本发明不限于此。例如在本发明的其他实施例中，第一主干电极201与第二主干电极202的宽度也可以彼此不等，同时，第一主干电极201和/或第二主干电极202也可以为宽度变化的条状电极。
由于在两个主干电极交错形成的四个显示区域中，枝干电极的结构以及排布方式关于第一主干电极201和第二主干电极202对称，因此，为了描述的方便，以下以第一显示区域203为例来对本实施例所提供的电极结构进行进一步的说明。
如图2所示，第一显示区域203内排布有第一枝干电极204a、第二枝干电极204b、第三枝干电极204c、第四枝干电极204d以及第五枝干电极204e。各个枝干电极的一端至少与第一主干电极201和第二枝干电极202之一连接并与相应主干电极形成相应的主干-枝干夹角。本实施例中，主干-枝干夹角为各个枝干电极远离主干交点的边缘与相应主干电极沿远离主干电极交点方向形成的夹角。
本实施例中，各个枝干电极均为条状电极，其中，条状电极的各个部位的宽度均相等。当然，在本发明的其他实施例中，各个枝干电极还可以采用不等宽的条状电极(例如枝干电极的中间位置处的宽度较宽而两端位置处的宽度较窄)，本发明不限于此。
第一枝干电极204a作为第一显示区域203中的中心枝干电极，其一端同时与第一主干电极201和第二主干电极202连接(即第一枝干电极204a的一端与主干电极交点连接)。本实施例中，第一枝干电极204a的主干-枝干夹角θ1优选地配置为45°。
为了改善液晶显示面板的大视角失真问题，本实施例所提供的电极结构采用了不等间距的结构形式。在本实施例所提供的电极结构中，沿远离主干电极交点方向，这些枝干电极的主干-枝干夹角逐级减小。具体地，如图2所示，第二枝干电极204b的一端与第一主干电极201连接，其主干-枝干夹角θ2要小于第一枝干电极204a的主干-枝干夹角 θ1。同时，第三枝干电极204c的一端也与第一主干电极201连接，其主干-枝干夹角θ3要小于第二枝干电极204b的主干-枝干夹角θ2。
本实施例中，主干-枝干夹角θ2优选地配置为30°，主干-枝干夹角θ3优选地配置为20°。需要说明的是，在本发明的其他实施例中，各个主干-枝干夹角还可以采用其他合理值，本发明不限于此，但是均需要保证沿远离主干电极交点方向主干-枝干夹角逐级减小。例如在本发明的其他实施例中，第二枝干电极204b的主干-枝干夹角θ2还可以配置为[27°，35°]中的其他合理值，而第三枝干电极204c的主干-枝干夹角θ3还可以配置为[15°，23°]中的其他合理值。
第四枝干电极204d和第五枝干电极204e的一端与第二主干202连接，其中，第四枝干电极204d的主干-枝干夹角θ4要小于主干-枝干夹角θ1的余角(由于本实施例中，主干-枝干夹角θ1配置为45°，因此主干-枝干夹角θ1的余角也为45°)，第五枝干电极204e的主干-枝干夹角θ5要小于主干-枝干夹角θ4。在本发明的不同实施例中，主干-枝干夹角θ4和主干-枝干夹角θ5既可以分别与主干-枝干夹角θ2和主干-枝干夹角θ3相等，也可以不等，本发明不限于此。
需要说明的是，在本实施例中，各个显示区域中配置有5个枝干电极仅仅是为了描述的方便，在本发明的其他实施例中，根据实际需要，各个显示区域中所包含的枝干电极的数量还可以根据实际需要配置为其他合理值，不发明同样不限于此。
本实施例所提供的电极结构在加电时，由于同一显示区域内的枝干电极间存在多种间距，这样也就使得枝干电极所形成的电场强度不同，因此可以使得液晶分子形成不同的预倾角，从而有助于改善大视角色差的问题。
实施例二：
图3示出了本实施例所提供的电极结构的示意图。其中，本实施例中，该电极结构为像素电极结构。当然，在本发明的其他实施例中，该电极结构还可以应用于液晶显示面板中其他合理的电极中，本发明不限于此。
与图2所示的电极结构类似，本实施例所提供的电极结构包括：第一主干电极301、第二主干电极302和多个枝干电极。其中，第一主干电极301与第二主干电极302垂直相交，从而形成了四个显示区域。第一主干电极201与第二主干电极202的相交点即为主干电极交点。由于在这四个显示区域中，枝干电极的结构以及排布方式关于第一主干电极301和第二主干电极302对称，因此，为了描述的方面，以下以第一显示区域303为例来对本实施例所提供的电极结构进行进一步的说明。
如图3所示，第一显示区域303内排布有第一枝干电极304a、第二枝干电极304b、第三枝干电极304c、第四枝干电极304d以及第五枝干电极304e。各个枝干电极的一端至少与第一主干电极301和第二枝干电极302之一连接并与相应主干电极形成相应的主干-枝干夹角。主干-枝干夹角为各个枝干电极远离主干交点的边缘与相应主干电极沿远离主干电极交点方向形成的夹角。
第一枝干电极304a作为第一显示区域203中的中心枝干电极，其一端同时与第一主干电极301和第二主干电极302连接(即第一枝干电极304a的一端与主干电极交点连接)。本实施例中，第一枝干电极303a的主干-枝干夹角θ1优选地配置为45°。
为了改善液晶显示面板的大视角失真问题，本实施例所提供的电极结构采用了不等间距的结构形式。在本实施例所提供的电极结构中，沿远离主干电极交点方向，这些枝干电极的主干-枝干夹角逐级增大。
如图3所示，第二枝干电极304b的一端与第一主干电极301连接，其主干-枝干夹角θ2要大于第一枝干电极304a的主干-枝干夹角θ1。同时，第三枝干电极304c的一端也与第一主干电极301连接，其主干-枝干夹角θ3要大于第二枝干电极304b的主干-枝干夹角θ2。本实施例中，各个枝干电极均为条状电极，对于各个电极来说，其宽度沿远离主干电极交点方向逐渐减小。即，枝干电极靠近主干电极交点位置处的宽度较宽，而远离主干电极交点位置处的宽度较窄。
本实施例中，主干-枝干夹角θ2优选地配置为60°，主干-枝干夹角θ3优选地配置为70°。需要说明的是，在本发明的其他实施例中，各个主干-枝干夹角还可以采用其他合理值，本发明不限于此，但是均需要保证沿远离主干电极交点方向主干-枝干夹角逐级增大。例如在本发明的其他实施例中，第二枝干电极304b的主干-枝干夹角θ2还可以配置为[55°，62°]的其他合理值，而第三枝干电极304c的主干-枝干夹角θ3还可以配置为[65°，73°]中的其他合理值。
第四枝干电极304d和第五枝干电极304e的一端均与第二主干电极302连接，其中，第四枝干电极304d的主干-枝干夹角θ4要大于第一枝干电极304a与第二主干电极302所形成的主干-枝干夹角θ′1，第五枝干电极304e的主干-枝干夹角θ5要大于主干-枝干夹角θ4。需要指出的是，在本发明的不同实施例中，根据实际需要，主干-枝干夹角θ4和主干-枝干夹角θ5既可以分别与主干-枝干夹角θ2和主干-枝干夹角θ3相等，也可以不等，本发明不限于此。
需要说明的是，在本实施例中，各个显示区域中配置有5个枝干电极仅仅是为了描述的方便，在本发明的其他实施例中，各个显示区域中所包含的枝干电极的数量还可以 根据实际需要配置为其他合理值，不发明同样不限于此。
图4示出了现有的电极结构以及本发明所提供的电极结构的性能对比图。从图4中可以看出，相较于现有的电极结构，实施例一以及实施例二所提供的电极结构能够有效改善液晶显示面板的大视角色偏问题。
本发明还提供了一种采用上述电极结构的液晶显示面板。
从上述描述中可以看出，本发明所提供的电极结构不再像现有的4显示区域的电极结构那样将所有的枝干电极的主干-枝干夹角均配置为45°，而是将不同位置处的枝干电极的主干-枝干夹角配置为不同大小，从而优化了电极的电场分布，进而使得液晶的指向得以优化，这样也就在保证开口率的基础上改善了大视角显示性能。
应该理解的是，本发明所公开的实施例不限于这里所公开的特定结构，而应当延伸到相关领域的普通技术人员所理解的这些特征的等同替代。还应当理解的是，在此使用的术语仅用于描述特定实施例的目的，而并不意味着限制。
说明书中提到的“一个实施例”或“实施例”意指结合实施例描述的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，说明书通篇各个地方出现的短语“一个实施例”或“实施例”并不一定均指同一个实施例。
此外，所描述的特征、结构或特性可以任何其他合适的方式结合到一个或多个实施例中。在上面的描述中，提供一些具体的细节，例如数量、角度等，以提供对本发明的实施例的全面理解。然而，相关领域的技术人员将明白，本发明无需上述一个或多个具体的细节便可实现，或者也可采用其它方法、组件、材料等实现。在其它示例中，周知的结构、材料或操作并未详细示出或描述以免模糊本发明的各个方面。
虽然上述示例用于说明本发明在一个或多个应用中的原理，但对于本领域的技术人员来说，在不背离本发明的原理和思想的情况下，明显可以在形式上、用法及实施的细节上作各种修改而不用付出创造性劳动。因此，本发明由所附的权利要求书来限定。

Claims (20)

  1. 一种液晶显示面板的电极结构，其中，包括：
    第一主干电极和第二主干电极，所述第一主板电极和第二主干电极相交，并形成有主干电极交点；
    多个枝干电极，所述多个枝干间隔设置，各个枝干电极的一端至少与所述第一主干电极和第二主干电极之一连接并与对应主干电极形成主干-枝干夹角；
    其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小或逐级增大。
  2. 如权利要求1所述的电极结构，其中，所述第一主干电极和/或第二主干电极的不同位置处的宽度是相等的。
  3. 如权利要求1所述的电极结构，其中，所述多个枝干电极包括四条中心枝干电极，所述四条中心枝干电极分别位于由所述第一主干电极和第二主干电极交错形成的四个显示区域内，其中，所述四条中心枝干电极的主干-枝干夹角为45°。
  4. 如权利要求1所述的电极结构，其中，所述多个枝干电极关于所述第一主干电极和第二主干电极对称排布。
  5. 如权利要求1所述的电极结构，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小。
  6. 如权利要求5所述的电极结构，其中，所述多个枝干电极的宽度彼此相等。
  7. 如权利要求5所述的电极结构，其中，所述各个枝干电极为条状电极，其中，所述条状电极各个位置处的宽度相等。
  8. 如权利要求1所述的电极结构，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级增大。
  9. 如权利要求2所述的电极结构，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级增大。
  10. 如权利要求3所述的电极结构，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级增大。
  11. 如权利要求8所述的电极结构，其中，对于各个枝干电极，其宽度沿远离所述主干电极交点方向逐渐减小。
  12. 一种液晶显示面板，其中，所述液晶显示面板中的电极采用的电极结构包括：
    第一主干电极和第二主干电极，所述第一主板电极和第二主干电极相交，并形成有主干电极交点；
    多个枝干电极，所述多个枝干间隔设置，各个枝干电极的一端至少与所述第一主干电极和第二主干电极之一连接并与对应主干电极形成主干-枝干夹角；
    其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小或逐级增大。
  13. 如权利要求12所述的液晶显示面板，其中，所述第一主干电极和/或第二主干电极的不同位置处的宽度是相等的。
  14. 如权利要求12所述的液晶显示面板，其中，所述多个枝干电极包括四条中心枝干电极，所述四条中心枝干电极分别位于由所述第一主干电极和第二主干电极交错形成的四个显示区域内，其中，所述四条中心枝干电极的主干-枝干夹角为45°。
  15. 如权利要求12所述的液晶显示面板，其中，所述多个枝干电极关于所述第一主干电极和第二主干电极对称排布。
  16. 如权利要求12所述的液晶显示面板，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级减小。
  17. 如权利要求16所述的液晶显示面板，其中，所述多个枝干电极的宽度彼此相等。
  18. 如权利要求16所述的液晶显示面板，其中，所述各个枝干电极为条状电极，其中，所述条状电极各个位置处的宽度相等。
  19. 如权利要求12所述的液晶显示面板，其中，沿远离所述主干电极交点方向，所述多个枝干电极的主干-枝干夹角逐级增大。
  20. 如权利要求19所述的液晶显示面板，其中，对于各个枝干电极，其宽度沿远离所述主干电极交点方向逐渐减小。
PCT/CN2015/094226 2015-10-15 2015-11-10 一种电极结构以及液晶显示面板 WO2017063243A1 (zh)

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CN107843998A (zh) * 2017-11-07 2018-03-27 深圳市华星光电技术有限公司 一种液晶显示面板
CN110716354B (zh) * 2019-10-30 2021-04-02 深圳市华星光电半导体显示技术有限公司 显示器
CN111308802B (zh) 2020-03-12 2021-07-06 Tcl华星光电技术有限公司 一种阵列基板、显示面板
CN111443533A (zh) 2020-04-24 2020-07-24 深圳市华星光电半导体显示技术有限公司 像素单元及液晶显示装置
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CN114815417B (zh) * 2021-01-27 2023-11-03 京东方科技集团股份有限公司 阵列基板和显示面板
CN114253036B (zh) * 2021-12-27 2024-03-26 武汉华星光电技术有限公司 像素电极、阵列基板及显示装置
CN114355685B (zh) * 2021-12-30 2023-01-10 绵阳惠科光电科技有限公司 阵列基板、阵列基板的制备方法和显示面板
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