WO2023272854A1 - 液晶显示面板及显示装置 - Google Patents

液晶显示面板及显示装置 Download PDF

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Publication number
WO2023272854A1
WO2023272854A1 PCT/CN2021/108974 CN2021108974W WO2023272854A1 WO 2023272854 A1 WO2023272854 A1 WO 2023272854A1 CN 2021108974 W CN2021108974 W CN 2021108974W WO 2023272854 A1 WO2023272854 A1 WO 2023272854A1
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WO
WIPO (PCT)
Prior art keywords
metal line
liquid crystal
line
substrate
metal
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PCT/CN2021/108974
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English (en)
French (fr)
Inventor
陈亚妮
Original Assignee
惠州华星光电显示有限公司
Tcl华星光电技术有限公司
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Application filed by 惠州华星光电显示有限公司, Tcl华星光电技术有限公司 filed Critical 惠州华星光电显示有限公司
Priority to US17/600,252 priority Critical patent/US11960186B2/en
Publication of WO2023272854A1 publication Critical patent/WO2023272854A1/zh

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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
    • G02F1/136—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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to a liquid crystal display panel and a display device having the liquid crystal display panel.
  • the pixel size As the resolution of liquid crystal displays continues to increase, the pixel size also decreases.
  • the pixel size is reduced to a certain extent, such as 8K resolution liquid crystal display products, the problem of poor liquid crystal diffusion due to pressing is prone to occur.
  • the specific mechanism is as follows: when the liquid crystal display panel is beaten by an external force, the liquid crystal becomes disordered, and the restoring force received by the liquid crystal molecules in the liquid crystal layer corresponding to the upper half of the first main electrode of the pixel electrode is the same as that received by other positions of the pixel electrode. Different, it is difficult to return to the original state, so there is a problem of poor diffusion of the pressed liquid crystal.
  • the area ratio of the main electrode in the pixel electrode is much higher than that of conventional 4K and 2K products, which makes this problem particularly prominent and affects the display quality.
  • Embodiments of the present application provide a liquid crystal display panel and a display device, so as to solve the problem of poor diffusion of liquid crystals when pressed on the existing liquid crystal display panel.
  • An embodiment of the present application provides a liquid crystal display panel, including a first substrate and a second substrate oppositely arranged, a liquid crystal layer is arranged between the first substrate and the second substrate, and the liquid crystal layer includes a plurality of liquid crystals Molecules, the second substrate is provided with a common electrode facing the first substrate, and the first substrate is provided with a plurality of scanning lines and a plurality of data lines, and the intersection of the scanning lines and the data lines defines a plurality of A pixel unit; each pixel unit is provided with a pixel electrode, the pixel electrode includes a trunk electrode and a plurality of branch electrodes, and the trunk electrode includes a first trunk electrode and a second trunk electrode intersecting with each other; the first trunk electrode A substrate is provided with a first metal line, and the orthographic projection of the first metal line on the plane where the pixel electrode is located covers at least part of the first trunk electrode, and the distance between the common electrode and the first metal line The voltage difference makes the liquid crystal molecules corresponding to the first metal lines in an
  • the voltage difference between the common electrode and the first metal line is V 1 , where -1V ⁇ V 1 ⁇ +1V.
  • the length of the first metal line is 0.5-1 times the length of the pixel electrode.
  • the width of the first metal line is greater than or equal to the width of the first trunk electrode.
  • first metal wire is connected in series with the second metal wire.
  • the first substrate is provided with a third metal line for blocking light leakage at the data line, the orthographic projection of the third metal line on the plane where the data line is located covers the data line, and the third metal line
  • the width of the third metal line is greater than the width of the data line, or the width of the third metal line is the same as the width of the data line.
  • first metal line, the second metal line and the third metal line are arranged in the same layer.
  • the present invention further provides a display device, comprising the above-mentioned liquid crystal display panel.
  • the beneficial effects of the present application are: by arranging the first metal line on the first substrate, the orthographic projection of the first metal line on the pixel electrode covers the first main electrode, and the voltage difference V1 between the first metal line and the common electrode close to each other, so that the liquid crystal molecules corresponding to the first metal lines do not deflect or have a small deflection angle, so as to solve the problem of insufficient liquid crystal recovery force when the liquid crystal molecules corresponding to the first main electrode are pressed on the liquid crystal display panel, and eliminate pressing
  • the poor phenomenon of liquid crystal diffusion improves the display quality.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel provided by an exemplary embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a pixel unit in a liquid crystal display panel provided by an exemplary embodiment of the present invention.
  • Liquid crystal display panel 110. First substrate, 111. Scanning line, 112. Data line, 120. Second substrate, 121. Common electrode, 130. Liquid crystal layer, 131. Liquid crystal molecule, 140. Pixel unit, 141. Pixel electrode, 142, outer frame part, 143, main electrode, 1431, first main electrode, 1432, second main electrode, 144, branch electrode, 151, first metal line, 152, second metal line, 153, second Three metal lines, 160, a thin film transistor, 161, a via.
  • the first metal wire is arranged on the first substrate of the liquid crystal display panel, the orthographic projection of the first metal wire on the pixel electrode covers the first main electrode, and the voltage difference V1 between the first metal wire and the common electrode is similar to ( That is -1V ⁇ V 1 ⁇ +1V), so that the liquid crystal molecules corresponding to the first metal line do not deflect, so as to solve the problem of insufficient liquid crystal recovery force of the liquid crystal molecules corresponding to the first main electrode when the liquid crystal display panel is pressed Problems, eliminate the bad phenomenon of liquid crystal diffusion by pressing, and improve the display quality.
  • the liquid crystal display panel of the present invention can be applied to a display device, such as an 8K liquid crystal display (LCD).
  • LCD 8K liquid crystal display
  • the liquid crystal display panel 100 includes a first substrate 110 and a second substrate 120 oppositely arranged, and the first substrate 110 and the second substrate 120 is provided with a liquid crystal layer 130, the liquid crystal layer 130 includes a plurality of liquid crystal molecules 131, the second substrate 120 is provided with a common electrode 121 facing the first substrate 110, and the first substrate 110 is provided with A plurality of scanning lines 111 and a plurality of data lines 112, the scanning lines 111 and the data lines 112 intersect to define a plurality of pixel units 140; each of the pixel units 140 is provided with a pixel electrode 141, and the pixel electrode 141 It includes an outer frame part 142 in the shape of a frame, a main electrode 143 and a plurality of branch electrodes 144 inscribed in the outer frame part 142, and the main electrode 143 includes a first main electrode 1431 parallel to the data line 112 and the second main electrode 1432 parallel to the scanning line 111 , the
  • the first metal line 151 is disposed on the first substrate 110, and the orthographic projection of the first metal line 151 on the plane where the pixel electrode 141 is located covers at least part of the first trunk electrode 1431,
  • the voltage difference between the common electrode 121 and the first metal line 151 makes the liquid crystal molecules 131 corresponding to the first metal line 151 in an opaque state. That is, in this embodiment, the first metal wire 151 is provided and the first metal wire 151 covers at least half of the length of the first trunk electrode 1431, and the voltage difference V1 between the first metal wire 151 and the common electrode 121 is 0V.
  • the potential on the first metal line 151 is set to be the same as the potential of the common electrode 121, so that the voltage difference between the two ends of the liquid crystal molecules 131 corresponding to the first metal line 151 is 0.
  • the liquid crystal molecules 131 corresponding to one metal line 151 do not deflect, and appear in a black and opaque state macroscopically, so that the first metal line 151 plays a light-shielding function similar to a BM (Black Matrix, black matrix). Therefore, since the liquid crystal molecules 131 corresponding to the first metal lines 151 are not deflected, when the liquid crystal display panel 100 is tapped, the liquid crystal molecules corresponding to the first metal lines 151 can quickly return to their original state, and are in a normally black state. , no light leakage will occur. At the same time, since the first trunk electrode 1431 (trunk) covered by the first metal line 151 is originally in a dark state, the aperture ratio and the penetration ratio will not be additionally sacrificed.
  • the voltage difference between the first metal line 151 and the common electrode 121 is -1V ⁇ V 1 ⁇ 1V, for example, the voltage applied to the first metal line 151 is 6V, and the voltage applied to the common electrode 121 is The voltage on the electrode 121 is 7V, the voltage difference between the first metal line 151 and the common electrode 121 is -1V, or, the voltage applied to the first metal line 151 is 8V, and the voltage applied to the common electrode 121 is 7V, the voltage difference between the first metal line 151 and the common electrode 121 is +1V.
  • the voltage difference between the first metal line 151 and the common electrode 121 is not 0, and the liquid crystal molecules 131 corresponding to the first metal line 151 will deflect, but the deflection angle is relatively small, for example, -2 ⁇ 2 °, the liquid crystal molecules 131 are still in a black and opaque state macroscopically.
  • the length of the first metal line 151 can be adjusted according to the size of the pixel electrode 141.
  • the length L1 of the first metal line 151 is 0.5-5% of the length L2 of the pixel electrode 141. 1 times, so that the orthographic projection of the first metal line 151 on the pixel electrode 141 covers at least half of the length of the first trunk electrode 1431 .
  • the width of the first metal line 151 is greater than or equal to the width of the first main electrode 1431 .
  • the first substrate 110 is further provided with a second metal line 152, and the orthographic projection of the second metal line 152 on the plane where the scan line 111 is located falls on the scan line 111.
  • the second metal line 152 is connected in series with the first metal line 151
  • the first metal line 151 is connected in series with the second metal line 152 to form a T-shaped structure.
  • the first substrate 110 is further provided with a third metal line 153, and the orthographic projection of the third metal line 153 on the plane where the data line 112 is located covers the data line 112, that is, the third metal line 153
  • the length corresponds to the length of the data line 112
  • the width of the third metal line 153 is slightly wider than or equal to the width of the data line 112
  • the third metal line 153 is connected in series with the second metal line 152 .
  • the first metal line 151 , the second metal line 152 and the third metal line 153 are disposed on the same layer, and are all disposed on the ITO layer of the first substrate 110 .
  • the first metal wire 151 , the second metal wire 152 and the third metal wire 153 are all ITO (indium tin oxide) electrodes.
  • the first metal wire 151, the second metal wire 152 and the third metal wire 153 are one of the following electrodes: indium zinc oxide IZO electrode, indium oxide In 2 O 3 electrode, tin oxide SnO 2 electrode, zinc oxide ZnO electrode, cadmium oxide CdO electrode or aluminum doped zinc oxide AZO electrode.
  • each pixel unit 140 is provided with at least one thin film transistor 160 , the gate of the thin film transistor 160 is connected to the scan line 111 , the source is connected to the data line 112 , and the drain is connected to the outer frame portion 142 through the via hole 161 .
  • the pixel electrode 141 has 4 domains (see FIG. 2 ) or 8 domains (not shown). If the pixel electrode 141 has 8 domains, it is divided into a main area and a sub area, and the first metal line 151 may cover the first main electrode located in the main area and/or the first main electrode located in the sub area.
  • the first substrate 110 is an array substrate
  • the second substrate 120 is a color filter substrate.

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

一种液晶显示面板（100）及显示装置，液晶显示面板（100）的第一基板（110）上设置第一金属线（151），第一金属线（151）在像素电极（141）上的正投影覆盖第一主干电极（1431），且第一金属线（151）与公共电极（121）之间的电压差V 1较小，使得与第一金属线（151）相对应的液晶分子（131）不偏转，以解决液晶显示面板（100）被按压时液晶回复力不足的问题，消除按压液晶扩散不良现象，提升显示品味。

Description

液晶显示面板及显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种液晶显示面板及具有该液晶显示面板的显示装置。
 背景技术
随着液晶显示分辨率的不断提高，像素尺寸也随之减小。当像素尺寸减小到一定程度时，例如8K分辨率的液晶显示产品，容易发生按压液晶扩散不良的问题。其具体发生机理如下：当液晶显示面板受到外力拍打后，液晶成乱序，液晶层内的与像素电极的第一主干电极的上半部分相对应的液晶分子受到的回复力与像素电极其他位置不同，难以恢复到初始状态，因此产生了按压液晶扩散不良的问题。
而在8K像素中，像素电极中主干电极的面积比例远远高于常规4k、2k产品，因而导致此问题尤为突出，影响了显示品味。
 技术问题
本申请实施例提供一种液晶显示面板及显示装置，以解决现有液晶显示面板按压液晶扩散不良的问题。
 技术解决方案
本申请实施例提供了一种液晶显示面板，包括相对设置的第一基板和第二基板，所述第一基板和所述第二基板之间设置有液晶层，所述液晶层包括多个液晶分子，所述第二基板朝向所述第一基板一面设置有公共电极，所述第一基板上设置有多条扫描线和多条数据线，所述扫描线与所述数据线交叉限定多个像素单元；每个所述像素单元内设置有一像素电极，所述像素电极包括主干电极和多个分支电极，所述主干电极包括与相互交叉的第一主干电极和第二主干电极；所述第一基板上设置有第一金属线，所述第一金属线在所述像素电极所在平面的正投影覆盖至少部分所述第一主干电极，所述公共电极与所述第一金属线之间的电压差使得与所述第一金属线相对应的液晶分子处于不透光状态。
进一步地，所述公共电极与所述第一金属线之间的电压差为V 1，-1V≤V 1≤+1V。
进一步地，所述第一金属线的长度是所述像素电极长度的0.5~1倍。
进一步地，所述第一金属线的宽度大于或者等于所述第一主干电极的宽度。
进一步地，所述第一基板上设置有用于遮挡扫描线处漏光的第二金属线，所述第二金属线在所述扫描线所在平面的正投影落在所述扫描线上，所述第二金属线与所述公共电极之间的电压差为V 2，V 2= V 1。
进一步地，所述第一金属线与所述第二金属线串联连接。
进一步地，所述第一基板上设置有用于遮挡数据线处漏光的第三金属线，所述第三金属线在所述数据线所在平面的正投影覆盖所述数据线，所述第三金属线与所述第二金属线串联连接，所述第三金属线与所述公共电极之间的电压差为V 3，V 3= V 1。
进一步地，所述第三金属线的宽度大于所述数据线的宽度，或者，所述第三金属线的宽度与所述数据线的宽度相同。
进一步地，第一金属线、第二金属线以及第三金属线同层设置。
为实现上述目的，本发明还提供一种显示装置，包括如前所述的液晶显示面板。
 有益效果
本申请的有益效果为：通过在第一基板上设置第一金属线，第一金属线在像素电极上的正投影覆盖第一主干电极，且第一金属线与公共电极之间的电压差V1相近，从而使得与第一金属线相对应的液晶分子不偏转或偏转角度较小，以解决与第一主干电极相对应的液晶分子在液晶显示面板被按压时液晶回复力不足的问题，消除按压液晶扩散不良现象，提升显示品味。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1是本发明一示例性实施例所提供的液晶显示面板的结构示意图；
图2是本发明一示例性实施例所提供的液晶显示面板中一个像素单元的结构示意图。
图中部件编号如下：
100、液晶显示面板，110、第一基板，111、扫描线，112、数据线，120、第二基板，121、公共电极，130、液晶层，131、液晶分子，140、像素单元，141、像素电极，142、外框部，143、主干电极，1431、第一主干电极，1432、第二主干电极，144、分支电极，151、第一金属线，152、第二金属线，153、第三金属线，160、薄膜晶体管，161、过孔。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
所述液晶显示面板的第一基板上设置第一金属线，第一金属线在像素电极上的正投影覆盖第一主干电极，且第一金属线与公共电极之间的电压差V 1相近（即-1V≤V 1≤+1V），从而使得与第一金属线相对应的液晶分子不偏转，以解决与第一主干电极相对应的液晶分子在液晶显示面板被按压时液晶回复力不足的问题，消除按压液晶扩散不良现象，提升显示品味。作为典型应用，本发明所述液晶显示面板可被应用于显示装置上，例如8K液晶显示器（LCD）。
在本发明的一个实施例中，参照图1和图2，所述液晶显示面板100包括，包括相对设置的第一基板110和第二基板120，所述第一基板110和所述第二基板120之间设置有液晶层130，所述液晶层130包括多个液晶分子131，所述第二基板120朝向所述第一基板110一面设置有公共电极121，所述第一基板110上设置有多条扫描线111和多条数据线112，所述扫描线111与所述数据线112交叉限定多个像素单元140；每个所述像素单元140内设置有一像素电极141，所述像素电极141包括形状为框体的外框部142和内接于所述外框部142的主干电极143和多个分支电极144，所述主干电极143包括与所述数据线112平行的第一主干电极1431和与所述扫描线111平行的第二主干电极1432，所述第一主干电极1431与所述第二主干电极1432相互交叉。
在本实施例中，所述第一基板110上设置有第一金属线151，所述第一金属线151在所述像素电极141所在平面的正投影覆盖至少部分所述第一主干电极1431，所述公共电极121与所述第一金属线151之间的电压差使得与第一金属线151相对应的液晶分子131处于不透光状态。即，本实施例通过设置第一金属线151且第一金属线151覆盖第一主干电极1431长度的至少一半，而且第一金属线151与公共电极121之间的电压差V 1为0V，换句话说，第一金属线151上的电位设置成与公共电极121的电位相同，使得与第一金属线151相对应的液晶分子131两端的电压差为0，由于电压差为0，因此与第一金属线151相对应的液晶分子131不发生偏转，宏观呈现为黑色、不透光状态，使得第一金属线151起到类似于BM（Black Matrix，黑色矩阵）的遮光作用。故而，由于与第一金属线151相对应的液晶分子131不偏转，当液晶显示面板100受拍打时，对应第一金属线151的液晶分子可以很快恢复到原有状态，并且是常黑状态，不会发生漏光。同时，由于第一金属线151所覆盖的第一主干电极1431（trunk）本来就是呈现暗态，因此不会额外牺牲开口率和穿透率。
在本发明的另一实施例中，第一金属线151与公共电极121之间的电压差-1V≤V 1≤1V，例如，施加在第一金属线151上的电压为6V，施加在公共电极121上的电压为7V，第一金属线151与公共电极121之间的电压差为-1V，或者，施加在第一金属线151上的电压为8V，施加在公共电极121上的电压为7V，第一金属线151与公共电极121之间的电压差为+1V。在本实施例中，第一金属线151与公共电极121之间的电压差不为0，对应第一金属线151的液晶分子131则会偏转，但偏转角度较小，例如为-2~2°，液晶分子131宏观上依然呈现为黑色、不透光状态。
在本发明的另一实施例中，第一金属线151的长度可以根据像素电极141的尺寸大小进行调节，例如所述第一金属线151的长度L1是所述像素电极141长度L2的0.5~1倍，使得第一金属线151在像素电极141上的正投影覆盖第一主干电极1431长度的至少一半即可。
其中，参照图2，第一金属线151的宽度大于或者等于第一主干电极1431的宽度。
在本发明的又一实施例中，第一基板110上还设置有第二金属线152，第二金属线152在扫描线111所在平面的正投影落在所述扫描线111上，所述第二金属线152与所述公共电极121之间的电压差为V 2，V 2=V 1，即，与第二金属线152相对应的液晶分子131不偏转（V 2=0V）或偏转角度较小（-1V≤V 2≤1V），宏观呈现为黑色、不透光状态，使得第二金属线152遮挡扫描线111处的漏光。其中，第二金属线152与第一金属线151串联连接，第一金属线151与第二金属线152串联连接，形成T字型结构。
在本发明的另一实施例中，第一基板110上还设置有第三金属线153，第三金属线153在数据线112所在平面的正投影覆盖数据线112，即，第三金属线153的长度与数据线112的长度相对应，第三金属线153的宽度略宽于或者等于数据线112的宽度，而且，所述第三金属线153与所述公共电极121之间的电压差为V 3，V 3=V 1，即，与第三金属线153相对应的液晶分子131不偏转（V 3=0V）或偏转角度较小（-1V≤V 3≤1V），宏观呈现为黑色、不透光状态，使得第三金属线153遮挡数据线112处的漏光。其中，第三金属线153与第二金属线152串联连接。
在本发明的一个实施例中，第一金属线151、第二金属线152以及第三金属线153同层设置，均设置在第一基板110的ITO层。第一金属线151、第二金属线152以及第三金属线153均为ITO（铟锡氧化物）电极。在其他实施例中，第一金属线151、第二金属线152以及第三金属线153为如下电极中的一种：铟锌氧化物IZO电极、氧化铟In 2O 3电极、氧化锡SnO 2电极、氧化锌ZnO电极、氧化镉CdO电极或铝掺杂的氧化锌AZO电极。
其中，每个像素单元140内设置有至少一个薄膜晶体管160，薄膜晶体管160的栅极与扫描线111连接，源极与数据线112连接，漏极通过过孔161与外框部142连接。
像素电极141为4畴（参照图2）或8畴（图中未示出）。如果像素电极141为8畴，则分为主区和次区，第一金属线151可覆盖位于主区的第一主干电极和/或位于次区的第一主干电极。第一基板110为阵列基板，第二基板120为彩膜基板。
综上所述，虽然本申请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申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种液晶显示面板，包括相对设置的第一基板和第二基板，所述第一基板和所述第二基板之间设置有液晶层，所述液晶层包括多个液晶分子，所述第二基板朝向所述第一基板一面设置有公共电极，所述第一基板上设置有多条扫描线和多条数据线，所述扫描线与所述数据线交叉限定多个像素单元；
    每个所述像素单元内设置有一像素电极，所述像素电极包括主干电极和多个分支电极，所述主干电极包括相互交叉的第一主干电极和第二主干电极；
    其中，
    所述第一基板上设置有第一金属线，所述第一金属线在所述像素电极所在平面的正投影覆盖至少部分所述第一主干电极，所述公共电极与所述第一金属线之间的电压差使得与所述第一金属线相对应的液晶分子处于不透光状态。
  2. 如权利要求1所述的液晶显示面板，其中，所述公共电极与所述第一金属线之间的电压差为V 1，-1V≤V 1≤+1V。
  3. 如权利要求2所述的液晶显示面板，其中，与所述第一金属线相对应的液晶分子的偏转角度为-2~2°。
  4. 如权利要求1所述的液晶显示面板，其中，所述第一金属线的长度是所述像素电极长度的0.5~1倍。
  5. 如权利要求4所述的液晶显示面板，其中，所述第一金属线的宽度大于或者等于所述第一主干电极的宽度。
  6. 如权利要求1所述的液晶显示面板，其中，所述第一基板上设置有用于遮挡扫描线处漏光的第二金属线，所述第二金属线在所述扫描线所在平面的正投影落在所述扫描线上，所述第二金属线与所述公共电极之间的电压差为V 2，V 2= V 1。
  7. 如权利要求6所述的液晶显示面板，其中，所述第二金属线与所述公共电极之间的电压差V 2的范围为-1V~+1V。
  8. 如权利要求6所述的液晶显示面板，其中，所述第一金属线与所述第二金属线串联连接。
  9. 如权利要求1所述的液晶显示面板，其中，所述第一基板上设置有用于遮挡数据线处漏光的第三金属线，所述第三金属线在所述数据线所在平面的正投影覆盖所述数据线，所述第三金属线与所述第二金属线串联连接，所述第三金属线与所述公共电极之间的电压差为V 3，V 3= V 1。
  10. 如权利要求9所述的液晶显示面板，其中，所述第三金属线与所述公共电极之间的电压差V 3的范围为-1V~+1V。
  11. 如权利要求9所述的液晶显示面板，其中，所述第三金属线的宽度大于所述数据线的宽度，或者，所述第三金属线的宽度与所述数据线的宽度相同。
  12. 如权利要求9所述的液晶显示面板，其中，第一金属线、第二金属线以及第三金属线同层设置。
  13. 一种显示装置，包括液晶显示面板；
    所述液晶显示面板包括：
    相对设置的第一基板和第二基板，所述第一基板和所述第二基板之间设置有液晶层，所述液晶层包括多个液晶分子，所述第二基板朝向所述第一基板一面设置有公共电极，所述第一基板上设置有多条扫描线和多条数据线，所述扫描线与所述数据线交叉限定多个像素单元；
    每个所述像素单元内设置有一像素电极，所述像素电极包括主干电极和多个分支电极，所述主干电极包括相互交叉的第一主干电极和第二主干电极；
    其中，
    所述第一基板上设置有第一金属线，所述第一金属线在所述像素电极所在平面的正投影覆盖至少部分所述第一主干电极，所述公共电极与所述第一金属线之间的电压差使得与所述第一金属线相对应的液晶分子处于不透光状态。
  14. 如权利要求13所述的显示装置，其中，所述公共电极与所述第一金属线之间的电压差为V 1，-1V≤V 1≤+1V，与所述第一金属线相对应的液晶分子的偏转角度为-2~2°。
  15. 如权利要求13所述的显示装置，其中，所述第一金属线的长度是所述像素电极长度的0.5~1倍。
  16. 如权利要求15所述的显示装置，其中，所述第一金属线的宽度大于或者等于所述第一主干电极的宽度。
  17. 如权利要求13所述的显示装置，其中，所述第一基板上设置有用于遮挡扫描线处漏光的第二金属线，所述第二金属线在所述扫描线所在平面的正投影落在所述扫描线上，所述第二金属线与所述公共电极之间的电压差为V 2，V 2= V 1，V 2的范围为-1V~+1V。
  18. 如权利要求17所述的显示装置，其中，所述第一金属线与所述第二金属线串联连接。
  19. 如权利要求13所述的显示装置，其中，所述第一基板上设置有用于遮挡数据线处漏光的第三金属线，所述第三金属线在所述数据线所在平面的正投影覆盖所述数据线，所述第三金属线与所述第二金属线串联连接，所述第三金属线与所述公共电极之间的电压差为V 3，V 3= V 1，V 3的范围为-1V~+1V。
  20. 如权利要求19所述的显示装置，其中，所述第三金属线的宽度大于所述数据线的宽度，或者，所述第三金属线的宽度与所述数据线的宽度相同；第一金属线、第二金属线以及第三金属线同层设置。
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