WO2020107538A1 - 阵列基板以及显示面板 - Google Patents

阵列基板以及显示面板 Download PDF

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Publication number
WO2020107538A1
WO2020107538A1 PCT/CN2018/120626 CN2018120626W WO2020107538A1 WO 2020107538 A1 WO2020107538 A1 WO 2020107538A1 CN 2018120626 W CN2018120626 W CN 2018120626W WO 2020107538 A1 WO2020107538 A1 WO 2020107538A1
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trunk
array substrate
pixel electrode
polarizing plate
parallel
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French (fr)
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宋振莉
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HKC Co Ltd
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HKC Co Ltd
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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to an array substrate and a display panel.
  • VA Vertical Alignment
  • the vertical alignment (Vertical Alignment, VA) type panel is a panel type with high-end liquid crystal applications.
  • the large viewing angle is the high-end capital for positioning such panels.
  • this type of display panel usually designs a structure including a trunk and branches on the pixel electrodes.
  • the main stem divides the sub-pixels into multiple domains, and the branches in each domain extend in different directions of the main stem, thereby achieving a wide viewing angle display.
  • the trunk is displayed in a dark state in each sub-pixel area, reducing the backlight transmittance.
  • an array substrate and a display panel capable of increasing backlight transmittance are provided.
  • An array substrate including:
  • a pixel electrode, the pixel electrode includes:
  • a second trunk arranged crosswise with the first trunk to divide the pixel electrode into a plurality of partitions of the same size
  • branches distributed in the plurality of partitions; the branches are connected to the first backbone or the second backbone; the extension directions of the branches in the various partitions are different;
  • the extending direction of the second trunk is inclined with respect to the absorption axis direction of the polarizing plate.
  • the extending direction of the first trunk is also inclined with respect to the direction of the absorption axis of the polarizing plate.
  • the extension direction of the first trunk is parallel to the absorption axis direction of the polarizing plate.
  • the number of the first trunk is one, and the first trunk and the second trunk divide the pixel electrode into four partitions of the same size .
  • the number of the second trunk is two, and the pixel electrode is symmetrical about the axis of the first trunk.
  • the number of the second trunk is one;
  • the array substrate includes a plurality of electrode groups, the electrode group includes 2n pixel electrodes of the same size connected in sequence, n is a positive integer; the same The extension directions of the first stems of the 2n pixel electrodes of the electrode group are parallel to each other, wherein the first n pixel electrodes are axis-symmetric with the remaining n pixel electrodes, and the axis of symmetry is parallel to the first One trunk.
  • the number of the first trunk is three
  • the number of the second trunk is two
  • the trunk divides the pixel electrode into eight partitions of the same size; three of the first trunks are arranged in parallel, and the pixel electrodes are symmetrical about the central axis of the first trunk.
  • the extending direction of the second trunk is inclined by 8° to 12° relative to the transmission axis direction of the polarizing plate.
  • the extending direction of the first trunk is perpendicular to the absorption axis direction of the polarizing plate.
  • the number of the first trunk is one, and the first trunk and the second trunk divide the pixel electrode into four partitions of the same size .
  • the number of the second trunk is two, and the pixel electrode is symmetrical about the axis of the first trunk.
  • the number of the second trunk is one;
  • the array substrate includes a plurality of electrode groups, the electrode group includes 2n pixel electrodes of the same size connected in sequence, n is a positive integer; the same The extension directions of the first stems of the 2n pixel electrodes of the electrode group are parallel to each other, wherein the first n pixel electrodes are axis-symmetric with the remaining n pixel electrodes, and the axis of symmetry is parallel to the first One trunk.
  • the number of the first trunk is three
  • the number of the second trunk is two
  • the trunk divides the pixel electrode into eight partitions of the same size; three of the first trunks are arranged in parallel, and the pixel electrodes are symmetrical about the central axis of the first trunk.
  • the extending direction of the second trunk is inclined by 8° to 12° relative to the absorption axis direction of the polarizing plate.
  • the angle between the extension direction of the branches in the plurality of the partitions of the pixel electrode and the absorption axis direction of the polarizing plate is 45°.
  • the pixel electrode further includes a ring-shaped frame, and the frame surrounds and connects the first trunk, the second trunk, and the branch; the frame includes a first side connected to each other And the second side.
  • the extending direction of the first side is parallel to the extending direction of the first trunk.
  • the extending direction of the second side is parallel to the extending direction of the second trunk.
  • An array substrate including:
  • Electrodes group including two pixel electrodes
  • the pixel electrode includes:
  • the first trunk, the extending direction is parallel to the absorption axis direction of the polarizing plate;
  • the second trunk is arranged across the first trunk to divide the pixel electrode into four partitions of the same size; the extension direction of the second trunk is inclined 8° to the direction of the transmission axis of the polarizer 12°;
  • a frame the frame includes a first side and a second side connected to each other, the extending direction of the first side is parallel to the extending direction of the first trunk, and the extending direction of the second side is parallel to the second The extension direction of the trunk;
  • the extending directions of the first stems of two pixel electrodes of the same electrode group are parallel to each other, and the two pixel electrodes of the same electrode group are symmetrical about the axis of the first stem.
  • a display panel including a polarizing plate and an array substrate
  • the polarizing plate is located on one side of the array substrate
  • the array substrate includes pixel electrodes
  • the pixel electrode includes:
  • a second trunk arranged crosswise with the first trunk to divide the pixel electrode into a plurality of partitions of the same size
  • branches distributed in the plurality of partitions; the branches are connected to the first backbone or the second backbone; the extension directions of the branches in the various partitions are different;
  • the extending direction of the second trunk is inclined with respect to the absorption axis direction of the polarizing plate.
  • the above array substrate tilts the extending direction of the second trunk with respect to the absorption axis direction of the polarizing plate, so that the second trunk does not block the light emitted by the backlight and displays a dark state, thereby effectively improving backlight transmittance.
  • FIG. 1 is a schematic diagram of a display panel in an embodiment
  • FIG. 2 is a schematic diagram of a pixel electrode in an embodiment
  • FIG. 3 is a schematic diagram of a pixel electrode in another embodiment
  • FIG. 4 is a schematic diagram of a pixel electrode in still another embodiment.
  • the array substrate provided by the present application can be applied to a display panel of a vertical alignment type liquid crystal display device such as a mobile phone, a computer screen, a driving device, and the like.
  • the display panel of a liquid crystal display device usually forms an alignment film on two substrates (array substrate and color filter substrate), so that the liquid crystal molecules between the two have a specific orientation.
  • the liquid crystal molecules between the two substrates of a vertical alignment (VA) panel are vertically aligned with respect to the substrate surface in the state where the voltage is off.
  • a display panel including a polarizing plate 100 and an array substrate 200.
  • the display panel has multiple sub-pixels and is configured to display in multiple colors.
  • the display panel further includes a color filter substrate 300, liquid crystal molecules 400, and a backlight 500.
  • the liquid crystal molecules 400 are located between the color filter substrate 300 and the array substrate 200.
  • the array substrate 200 is located between the liquid crystal molecules 400 and the backlight 500.
  • the polarizing plate 100 is located between the array substrate 200 and the backlight 500.
  • the color filter substrate 300 is usually provided with another polarizing plate on the side away from the liquid crystal molecules 400.
  • the polarizing plate 100 in the application document is located between the array substrate 200 and the backlight 500 ⁇ Polarizing plate 100.
  • the polarizing plate 100 can control the polarization direction of a specific light beam.
  • the polarizer 100 When natural light passes through the polarizer 100, the light whose vibration direction is parallel to the absorption axis of the polarizer 100 will be absorbed, and only the polarized light whose vibration direction is perpendicular to the absorption axis of the polarizer 100 is transmitted through the transmitted light.
  • the polarizing plate 100 located between the array substrate 200 and the backlight 500 is close to the backlight, so that the light beam generated by the backlight 500 can be converted into polarized light.
  • the array substrate 200 of the vertical alignment type display panel includes pixel electrodes 210.
  • the pixel electrode 210 may be formed on the base substrate 220.
  • One pixel electrode 210 of the display panel corresponds to one sub-pixel.
  • the pixel electrode 210 includes a first trunk 211, a second trunk 212 and a branch 213.
  • the second trunk 212 and the first trunk 211 are arranged crosswise to divide the pixel electrode 210 into multiple partitions of the same size, and each partition corresponds to multiple domains of the sub-pixel.
  • the branches 213 are distributed in multiple partitions. And the branch 213 located in each partition is connected to the corresponding first backbone 211 or second backbone 212.
  • the extension directions of the branches 213 in each subarea are different, so that after the pixel electrode 210 is energized, the liquid crystal molecules in each domain of the sub-pixel have different inversions, thereby expanding the display viewing angle.
  • the extension directions of the first main body 211, the second main body 212, and the branches 213 of the vertical alignment type display panel affect the deflection direction of the liquid crystal molecules 400 when energized. Therefore, the backlight transmittance of the display panel is related to the angle between the extension direction of the first trunk 211, the second trunk 212, and the branch 213 and the absorption axis direction of the polarizing plate 100.
  • the included angle is 0° or 90°
  • the extension direction of the branch 213 in each section of the pixel electrode 200 is different, and the angle between the branch axis 213 and the absorption axis direction of the polarizing plate 100 is generally 45°, and thus it can have good light transmittance.
  • the extension direction of the second trunk 212 is inclined with respect to the absorption axis direction of the polarizing plate 100.
  • both the extension direction of the first trunk 211 and the extension direction of the second trunk 212 may be inclined with respect to the absorption axis direction of the polarizing plate 100.
  • the extension direction of the first trunk 211 When the extension direction of the first trunk 211 is inclined with respect to the absorption axis direction of the polarizing plate 100, the extension direction of the first trunk 211 is not parallel or perpendicular to the absorption axis direction of the polarizing plate 100. Therefore, the angle between the extension direction of the first trunk 211 and the absorption axis direction of the polarizing plate 100 is also not 0° or 90°. Therefore, it can effectively prevent the first trunk 211 from blocking the backlight and displaying a dark state in each sub-pixel area, thereby effectively improving the backlight transmittance.
  • the extension direction of the second trunk 212 is inclined with respect to the absorption axis direction of the polarizing plate 100, the extension direction of the second trunk 212 is neither parallel nor perpendicular to the absorption axis direction of the polarizing plate 100. Therefore, the angle between the extension direction of the second trunk 212 and the absorption axis direction of the polarizing plate 100 is not 0° or 90°. Therefore, it can effectively prevent the second trunk 212 from blocking the backlight and displaying a dark state in each sub-pixel area, thereby effectively improving the backlight transmittance.
  • the second trunk 212 and the first trunk 211 divide the pixel electrode 210 into a plurality of partitions of the same size, thereby ensuring the uniformity of the viewing angle.
  • the extension direction of the second trunk 212 is inclined with respect to the absorption axis direction of the polarizing plate 100. Therefore, the light transmittance near the second trunk 212 can be improved.
  • the angle between the extension direction of the branch 123 in the plurality of partitions of the pixel electrode 210 and the absorption axis direction of the polarizing plate 100 is generally 45°, thereby making the liquid crystal molecules 400 in each partition have a better deflection angle when energized Thereby achieving better light transmittance.
  • the extension direction of the first stem 211 is also parallel or perpendicular to the absorption axis direction of the polarizing plate 100, thereby improving the light transmittance and taking into account the display uniformity.
  • the number of the first trunk 211 provided in the same pixel electrode 210 is one.
  • the first trunk 211 and the second trunk 212 divide the pixel electrode 210 into four partitions of the same size. Therefore, the four-domain uniform display of one sub-pixel is realized simply and effectively.
  • the number of second trunks 212 is set to two.
  • the two second trunks 212 may be bent and connected. Therefore, the pixel electrode 210 may be further provided with axis symmetry about one first trunk 211. At this time, the two second trunks 212 are axisymmetric with respect to one first trunk 211.
  • the branches on both sides of the first trunk 211 are also symmetrical with respect to the first trunk 211. Therefore, the entire pixel electrode 210 can achieve uniform display from different angles.
  • the number of the first trunk 211 and the second trunk 212 in the same pixel electrode 210 is one.
  • One first trunk 211 and one second trunk 212 divide the pixel electrode 210 into four partitions of the same size.
  • the array substrate 200 includes a plurality of electrode groups 200a.
  • Each electrode group includes 2n pixel electrodes 210 of the same size and connected in sequence, where n is a positive integer.
  • the extending directions of the first stems 211 of the 2n pixel electrodes of the same electrode group 200a are parallel to each other. 2n pixel electrodes are connected in sequence. Therefore, the second trunks 211 of 2n pixel electrodes are also connected in sequence.
  • the first n pixel electrodes 210 are axisymmetric with the remaining n pixel electrodes 210, and the axis of symmetry is parallel to the first stem 211.
  • the first main body 211, the second main body 212, and the branch 213 of the first n pixel electrodes 210 and the first main body 211, the second main body 212, and the branch 213 of the remaining n pixel electrodes 210 are all axisymmetric and axisymmetric
  • the axis is parallel to the first trunk 211. Therefore, at this time, even if a single pixel electrode 210 has a display difference from different angles, the overall display effect of the electrode group 200a formed by 2n pixel electrodes is uniform.
  • n As the number of n is larger, the local display unevenness of the display panel is more obvious. For practical applications, it is better to choose n as one or two, so that the local display unevenness is not easily recognized by the human eye, that is, the human eye sees a comprehensive and uniform display effect.
  • the first backbone 211 and the second backbone 212 of the pixel unit 210 divide the sub-pixels into four domains.
  • the embodiments of the present application are not limited to this.
  • the sub-pixels may be divided into eight domains or twelve domains. The twelve domains are usually set as large-size display panels.
  • the number of first trunks 211 is three, and the number of second trunks 212 is two.
  • the three first stems 211 divide the pixel electrode 210 into four parts.
  • the second backbone 212 crosses the first backbone 211, and further divides the four parts into eight partitions of the same size.
  • the implementation divides the four parts into eight partitions, and a second backbone 212 can also be implemented.
  • two second trunks 212 are provided.
  • the two second trunks 212 may be bent and connected. Therefore, the pixel electrode 210 can be further provided to be axially symmetrical with respect to a centrally located first trunk 211.
  • the first trunk 211, the second trunk 212, and the branches located on both sides of the central first trunk 211 are symmetrical about the first trunk 211. Therefore, the pixel electrode 210 has a uniform display from different angles.
  • the extension direction of the first trunk 211 is parallel to or perpendicular to the absorption axis direction of the polarizing plate 100, and the extension direction of the second trunk 212 is also inclined 8 relative to the absorption axis direction of the polarizing plate 100. °-12°; or the extension direction of the second trunk 212 is inclined 8°-12° relative to the transmission axis direction of the polarizing plate 100.
  • the extending direction of the first trunk 211 is parallel to the absorption axis direction of the polarizing plate 100
  • the extending direction of the second trunk 212 may be inclined by 8° to 12° relative to the transmission axis direction of the polarizing plate 100.
  • the extending direction of the first trunk 211 is perpendicular to the absorption axis direction of the polarizing plate 100
  • the extending direction of the second trunk 212 may be set inclined by 8° to 12° relative to the absorption axis direction of the polarizing plate 100.
  • the range of 8° to 12° can make the second trunk 212 have an inclination to transmit light, thereby improving light transmittance.
  • the angle of inclination of the second trunk 212 is not too large, and reducing the symmetry of the branches 123 connected to the two sides of the second trunk 212 is weakened, thereby reducing the uniform weakening when viewed from all angles. Thereby improving display uniformity.
  • the pixel electrode 210 may further include a ring-shaped frame 214.
  • the frame 214 surrounds and connects the first trunk 211, the second trunk 212, and the branch 213. Since the edge of the branch 213 is easy to lead to the chaos of the liquid crystal molecules 400 and cause dark lines to appear, the pixel electrode 210 can usually improve the dark lines by adding a frame 214.
  • the frame 214 is also used to define the sub-pixel area, which is generally opposite to the black matrix (BM) on the color filter substrate.
  • the frame 214 includes a first side 2141 and a second side 2142 connected to each other.
  • the extending direction of the first side 2141 is parallel to the extending direction of the first trunk 211
  • the extending direction of the second side 2142 is parallel to the extending direction of the second trunk 212.
  • the pixel electrode 210 has a simple structure, which is convenient for design. Of course, this application is not limited to this method.
  • the array substrate includes a plurality of electrode groups 200a.
  • the electrode group 200a includes two pixel electrodes 210.
  • Each pixel electrode 210 includes a first trunk 211, a second trunk 212, a branch 123, and a bezel 124.
  • the extension direction of the first trunk 211 is parallel to the absorption axis direction of the polarizing plate 100.
  • the second trunk 212 and the first trunk 211 are arranged crosswise to divide the pixel electrode 210 into four partitions of the same size.
  • the extending direction of the second trunk 212 is inclined by 8° to 12° with respect to the transmission axis direction of the polarizing plate 100.
  • the branches 123 are distributed in multiple partitions, and are connected to the first trunk 211 or the second trunk 212.
  • the frame 124 includes a first side 1241 and a second side 1242 connected to each other.
  • the extending direction of the first side 1241 is parallel to the extending direction of the first trunk 121
  • the extending direction of the second side 1242 is parallel to the extending direction of the second trunk 122.
  • the extending directions of the first stems 211 of the two pixel electrodes 210 of the same electrode group 200a are parallel to each other, and the two pixel electrodes 210 of the same electrode group are axisymmetric with respect to the first stem 211.
  • the electrode group 200a has a uniform display viewing angle, which not only ensures the display uniformity, but also improves the backlight penetration rate.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
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Abstract

一种阵列基板以及显示面板。阵列基板包括像素电极。像素电极包括：第一主干；第二主干，与第一主干交叉设置而将像素电极分为多个尺寸相同的分区；分支，分布于多个分区内；分支与第一主干或第二主干连接。各个分区内的分支的延伸方向不同。第二主干的延伸方向相对于偏光板的吸收轴方向倾斜。可选地，第一主干的延伸方向平行于或者垂直于偏光板的吸收轴方向。

Description

阵列基板以及显示面板
本申请要求于2018年11月29日提交中国专利局、申请号为201821985569.8、发明名称为“阵列基板以及显示面板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，特别是涉及一种阵列基板以及显示面板。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然的构成现有技术。
随着液晶显示技术的发展，出现了各种类型的显示面板。其中，垂直配向(Vertical Alignment，VA)型面板是高端液晶应用较多的面板类型。大可视角度是该类面板定位高端的资本。为了实现广视角显示，这类显示面板通常会将像素电极上设计成包括主干与分支的结构。主干将子像素分成多个畴，各畴内的分支自主干的延伸方向不同，进而实现广视角显示。
但是，像素电极通电时，主干在各子像素区域内显示为暗态，减少了背光的穿透率。
申请内容
根据本申请的各种实施例，提供一种能够增大背光穿透率的阵列基板以及显示面板。
一种阵列基板，包括：
像素电极，所述像素电极包括：
第一主干；
第二主干，与所述第一主干交叉设置而将所述像素电极分为多个尺寸相同的分区；
分支，分布于所述多个分区内；所述分支与所述第一主干或所述第二主干连接；各个分区内的所述分支的延伸方向不同；
所述第二主干的延伸方向相对于偏光板的吸收轴方向倾斜。
在其中一个实施例中，所述第一主干的延伸方向也相对于偏光板的吸收轴方向倾斜。
在其中一个实施例中，所述第一主干的延伸方向平行于所述偏光板的吸收轴方向。
在其中一个实施例中，同一所述像素电极中，所述第一主干的数量为一个，所述第一主干与所述第二主干将所述像素电极分为四个尺寸相同的所述分区。
在其中一个实施例中，所述第二主干的数量为两个，所述像素电极关于所述第一主干轴对称。
在其中一个实施例中，所述第二主干的数量一个；所述阵列基板包括多个电极组，所述电极组包括2n个相同尺寸并依次相连的所述 像素电极，n为正整数；同一所述电极组的所述2n个所述像素电极的第一主干的延伸方向相互平行，其中前n个所述像素电极与剩余n个所述像素电极轴对称，其对称轴平行于所述第一主干。
在其中一个实施例中，同一所述像素电极中，所述第一主干的数量为三个，所述第二主干的数量为两个，三个所述第一主干与两个所述第二主干将所述像素电极分为八个尺寸相同的所述分区；三个所述第一主干平行设置，所述像素电极关于位于中央的所述第一主干轴对称。
在其中一个实施例中，所述第二主干的延伸方向相对于所述偏光板的透过轴方向倾斜8°～12°。
在其中一个实施例中，所述第一主干的延伸方向垂直于所述偏光板的吸收轴方向。
在其中一个实施例中，同一所述像素电极中，所述第一主干的数量为一个，所述第一主干与所述第二主干将所述像素电极分为四个尺寸相同的所述分区。
在其中一个实施例中，所述第二主干的数量为两个，所述像素电极关于所述第一主干轴对称。
在其中一个实施例中，所述第二主干的数量一个；所述阵列基板包括多个电极组，所述电极组包括2n个相同尺寸并依次相连的所述像素电极，n为正整数；同一所述电极组的所述2n个所述像素电极的第一主干的延伸方向相互平行，其中前n个所述像素电极与剩余n个所述像素电极轴对称，其对称轴平行于所述第一主干。
在其中一个实施例中，同一所述像素电极中，所述第一主干的数量为三个，所述第二主干的数量为两个，三个所述第一主干与两个所述第二主干将所述像素电极分为八个尺寸相同的所述分区；三个所述第一主干平行设置，所述像素电极关于位于中央的所述第一主干轴对称。
在其中一个实施例中，所述第二主干的延伸方向相对于所述偏光板的吸收轴方向倾斜8°～12°。
在其中一个实施例中，所述像素电极的多个所述分区内的所述分支的延伸方向与所述偏光板的吸收轴方向的夹角为45°。
在其中一个实施例中，所述像素电极还包括环状的边框，所述边框包围并连接所述第一主干、所述第二主干以及所述分支；所述边框包括相互连接的第一边以及第二边。
在其中一个实施例中，所述第一边的延伸方向平行于所述第一主干的延伸方向。
在其中一个实施例中，所述第二边的延伸方向平行于所述第二主干的延伸方向。
一种阵列基板，包括：
多个电极组，所述电极组包括两个像素电极；
所述像素电极包括：
第一主干，延伸方向平行于所述偏光板的吸收轴方向；
第二主干，与所述第一主干交叉设置而将所述像素电极分为四个尺寸相同的分区；所述第二主干的延伸方向相对于所述偏光板的透光 轴方向倾斜8°～12°；
分支，分布于所述多个分区内，与所述第一主干或所述第二主干连接；
边框，所述边框包括相互连接的第一边以及第二边，所述第一边的延伸方向平行于所述第一主干的延伸方向，所述第二边的延伸方向平行于所述第二主干的延伸方向；
同一所述电极组的两个所述像素电极的第一主干的延伸方向相互平行，同一所述电极组的两个所述像素电极关于所述第一主干轴对称。
一种显示面板，包括偏光板以及阵列基板；
所述偏光板位于所述阵列基板的一侧；
阵列基板包括像素电极，
所述像素电极包括：
第一主干；
第二主干，与所述第一主干交叉设置而将所述像素电极分为多个尺寸相同的分区；
分支，分布于所述多个分区内；所述分支与所述第一主干或所述第二主干连接；各个分区内的所述分支的延伸方向不同；
所述第二主干的延伸方向相对于偏光板的吸收轴方向倾斜。
上述阵列基板，通过将第二主干的延伸方向相对于偏光板的吸收轴方向倾斜，进而使得第二主干不会遮挡背光源发出的光而显示暗态，进而有效提高背光穿透率。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些申请的实施例和/或示例，可以参考一副或多副附图。用于描述附图的附加细节或示例不应当被认为是对所公开的申请、目前描述的实施例和/或示例以及目前理解的这些申请的最佳模式中的任何一者的范围的限制。
图1为一个实施例中显示面板示意图；
图2为一个实施例中像素电极示意图；
图3为另一个实施例中像素电极示意图；
图4为又一个实施例中像素电极示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请提供的阵列基板，可以应用于移动电话、计算机屏幕、行车仪等垂直配向型液晶显示装置的显示面板中。
液晶显示装置的显示面板通常会在两个基板(阵列基板与彩膜基板)上形成配向膜，以使二者之间的液晶分子具有特定的导向。垂直 配向(Vertical Alignment，VA)型面板的两个基板之间的液晶分子，在电压断开的状态下相对于基板面垂直取向。
在一个实施例中，如图1所示，提供了一种显示面板，包括偏光板100以及阵列基板200。显示面板具有多个子像素，设置为进行多种颜色的显示。此外，显示面板还包括彩膜基板300、液晶分子400、以及背光源500。液晶分子400位于彩膜基板300与阵列基板200之间。阵列基板200位于液晶分子400与背光源500之间。偏光板100位于阵列基板200与背光源500之间。这里要注意的是彩膜基板300远离液晶分子400一侧通常还设有另外的偏光板，本申请为描述清楚起见，申请文件中所指偏光板100均为位于阵列基板200与背光源500之间的偏光板100。
偏光板100可控制特定光束的偏振方向。自然光在通过偏光片100时，振动方向与偏光片100的吸收轴平行的光将被吸收，透过光只剩下振动方向与偏光片100的吸收轴垂直的偏振光。
液晶显示面板中，位于阵列基板200与背光源500之间的偏光板100离背光源近，进而可将背光源500产生的光束转换为偏振光。
在一个实施例中，垂直配向型显示面板的阵列基板200包括像素电极210。像素电极210可以形成与衬底基板220上。显示面板的一个像素电极210对应一个子像素。参考图2至图4，像素电极210包括第一主干211、第二主干212以及分支213。第二主干212与第一主干211交叉设置而将像素电极210分为多个尺寸相同的分区，对个分区对应子像素的多个畴。分支213分布于多个分区内。并且位于各 个分区内的分支213与相对应的第一主干211或第二主干212连接。各个分区内的分支213的延伸方向不同，进而使得在像素电极210上通电后，子像素的各个畴中的液晶分子具有不同倒向，从而扩大显示视角。
垂直配向型显示面板的第一主干211、第二主干212以及分支213的延伸方向影响液晶分子400在通电时的偏转方向。因此，显示面板的背光穿透率和第一主干211、第二主干212以及分支213的延伸方向与偏光板100的吸收轴方向的夹角有关。当夹角为0°或者90°时，背光源500的光将不能透过至显示面板的出光侧，进而显示暗态。像素电极200的各个分区内的分支213的延伸方向不同，其与偏光板100的吸收轴方向的夹角通常为45°，进而能具有良好的透光率。
本申请实施例将第二主干212的延伸方向相对于偏光板100的吸收轴方向倾斜。或者，也可以将第一主干211的延伸方向与第二主干212的延伸方向均相对于偏光板100的吸收轴方向倾斜。
第一主干211的延伸方向相对于偏光板100的吸收轴方向倾斜时，第一主干211的延伸方向不平行也不垂直于偏光板100的吸收轴方向。因此，第一主干211的延伸方向与偏光板100的吸收轴方向的夹角也不为0°或者90°。因此，可以有效防止第一主干211遮挡背光而在各子像素区域内显示为暗态，进而有效提高背光穿透率。
同理，第二主干212的延伸方向相对于偏光板100的吸收轴方向倾斜时，第二主干212的延伸方向不平行也不垂直于偏光板100的吸收轴方向。因此，第二主干212的延伸方向与偏光板100的吸收轴方 向的夹角也不为0°或者90°。因此，可以有效防止第二主干212遮挡背光而在各子像素区域内显示为暗态，进而有效提高背光穿透率。
同时，本申请实施例第二主干212与第一主干211将像素电极210分为多个尺寸相同的分区，进而保证了视角的均匀性。
在一个实施例中，第二主干212的延伸方向相对于偏光板100的吸收轴方向倾斜。因此，可通过提高第二主干212附近的光透过率。同时，像素电极210的多个分区内的分支123的延伸方向与偏光板100的吸收轴方向的夹角通常为45°，进而使得各分区内的液晶分子400在通电时具有较佳偏转角度，从而实现较佳的透光率。多个分区内的沿不同方向延伸的分支123的分布情况越平均，越有利于显示面板在各个方向看去的显示效果越均匀。因此，本实施例还同时将第一主干211的延伸方向平行于或垂直于偏光板100的吸收轴方向，进而在改善透光率的同时，兼顾显示均匀性。
在一个实施例中，参考图2以及图3，在只有第二主干212的延伸方向相对于偏光板100的吸收轴方向倾斜时，设置同一像素电极210中的第一主干211的数量为一个。第一主干211与第二主干212将像素电极210分为四个尺寸相同的分区。因此，简便有效地实现了一个子像素的四畴均匀显示。
在一个实施例中，在上述实施例的基础上，参考图2，将第二主干212的数量设置为两个。两个第二主干212可以弯折连接。因此，可进一步设置像素电极210关于一个第一主干211轴对称。此时，两个第二主干212关于一个第一主干211轴对称。第一主干211两侧的 分支也关于第一主干211对称。因此，整个像素电极210可以实现从不同角度看可均匀显示。
在一个实施例中，参考图3，设置同一像素电极210中的第一主干211与第二主干212的数量均为一个。一个第一主干211与一个第二主干212将像素电极210分为四个尺寸相同的分区。同时，本实施例中，阵列基板200包括多个电极组200a。每个电极组包括2n个相同尺寸并依次相连的像素电极210，n为正整数。
同一电极组200a的2n个像素电极的第一主干211的延伸方向相互平行。2n个像素电极依次相连。因此，2n个像素电极的第二主干211也依次相连。本实施例中，前n个像素电极210与剩余n个像素电极210轴对称，轴对称的对称轴平行于第一主干211。因此，前n个像素电极210的第一主干211、第二主干212、分支213与剩余n个像素电极210的第一主干211、第二主干212、分支213均轴对称，且轴对称的对称轴平行于第一主干211。所以，此时，即便单个像素电极210从不同角度看存在显示差异，但是，2n个像素电极形成的电极组200a整体显示效果均匀。
由于n数量越大，显示面板局部显示不均越明显。为实际应用中，最好取n为一或者二，使得局部显示不均不容易被人眼识别，即人眼看到的是综合的均匀的显示效果。
上述实施例中像素单元210的第一主干211以及第二主干212将子像素分为了四个畴。当然，本申请实施例并不限于此，为了进一步改善视角，还可以将子像素分为了八个畴或者十二个畴等。十二 个畴通常设置为大尺寸显示面板。
在一个实施例中，参考图4，同一像素电极210中，第一主干211的数量为三个，第二主干212的数量为两个。三个第一主干211将像素电极210分为四个部分。此时，第二主干212与第一主干211交叉，进一步将四个部分又分为八个尺寸相同的分区。实现将四个部分分为八个分区，一个第二主干212也可实现。但是本实施例，设置有两个第二主干212。两个第二主干212可以弯折连接。因此，可进一步设置像素电极210关于一个位于中央的第一主干211轴对称。此时，位于中央的第一主干211两侧的第一主干211、第二主干212以及分支均关于该第一主干211对称。因此，像素电极210从不同角度看存在显示仍然均匀。
在一个实施例中，设置在第一主干211的延伸方向平行于或垂直于偏光板100的吸收轴方向的同时，还设置第二主干212的延伸方向相对于偏光板100的吸收轴方向倾斜8°～12°；或者第二主干212的延伸方向相对于偏光板100的透过轴方向倾斜8°～12°。具体地，如果第一主干211的延伸方向平行于偏光板100的吸收轴方向设置，则第二主干212的延伸方向可以相对于偏光板100的透过轴方向倾斜8°～12°。如果第一主干211的延伸方向垂直于偏光板100的吸收轴方向设置，则第二主干212的延伸方向可以相对于偏光板100的吸收轴方向倾斜8°～12°设置。
8°～12°的范围既可以使得第二主干212具有一个倾斜度而可以进行透光，进而提高透光率。同时又不至于将第二主干212倾斜角 度过大，而降低第二主干212两侧连接的分支123的对称性减弱，进而降低各个角度观看时的均匀减弱。从而提高显示均匀度。
本申请实施例中，像素电极210除了第一主干211、第二主干212以及分支213外，还可以包括环状的边框214。边框214包围并连接第一主干211、第二主干212以及分支213。由于分支213边缘处容易因此液晶分子400导向混乱而导致暗纹显现，像素电极210通常可以通过加边框214的方式改善暗纹。同时边框214也用来限定子像素区域，其通常与彩膜基板上的黑色矩阵(BM)相对。
在本申请的在一个实施例中，参考图2至图4，边框214包括相互连接的第一边2141以及第二边2142。并将第一边2141的延伸方向平行于第一主干211的延伸方向，第二边2142的延伸方向平行于第二主干212的延伸方向。此时像素电极210结构简单，便于设计。当然，本申请，并不限于此种方式。
在一个实施例中，参考图3，阵列基板包括多个电极组200a。电极组200a包括两个像素电极210。每个像素电极210包括第一主干211、第二主干212、分支123以及边框124。第一主干211延伸方向平行于偏光板100的吸收轴方向。第二主干212与第一主干211交叉设置而将像素电极210分为四个尺寸相同的分区。第二主干212的延伸方向相对于偏光板100的透光轴轴方向倾斜8°～12°。分支123分布于多个分区内，与第一主干211或第二主干212连接。边框124包括相互连接的第一边1241以及第二边1242。第一边1241的延伸方向平行于第一主干121的延伸方向，第二边1242的延伸方向平行 于第二主干122的延伸方向。
同一电极组200a的两个像素电极210的第一主干211的延伸方向相互平行，同一电极组的两个像素电极210关于第一主干211轴对称。
本实施例电极组200a整体显示视角均匀，既保证了显示均匀性，又提高了背光的穿透率。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种阵列基板，包括：
    像素电极，所述像素电极包括：
    第一主干；
    第二主干，与所述第一主干交叉设置而将所述像素电极分为多个尺寸相同的分区；
    分支，分布于所述多个分区内；所述分支与所述第一主干或所述第二主干连接；各个分区内的所述分支的延伸方向不同；
    所述第二主干的延伸方向相对于偏光板的吸收轴方向倾斜。
  2. 根据权利要求1所述的阵列基板，其中，所述第一主干的延伸方向也相对于偏光板的吸收轴方向倾斜。
  3. 根据权利要求1所述的阵列基板，其中，所述第一主干的延伸方向平行于所述偏光板的吸收轴方向。
  4. 根据权利要求3所述的阵列基板，其中，同一所述像素电极中，所述第一主干的数量为一个，所述第一主干与所述第二主干将所述像素电极分为四个尺寸相同的所述分区。
  5. 根据权利要求4所述的阵列基板，其中，所述第二主干的数量为两个，所述像素电极关于所述第一主干轴对称。
  6. 根据权利要求4所述的阵列基板，其中，
    所述第二主干的数量一个；
    所述阵列基板包括多个电极组，所述电极组包括2n个相同尺寸并依次相连的所述像素电极，n为正整数；
    同一所述电极组的所述2n个所述像素电极的第一主干的延伸方向相互平行，其中前n个所述像素电极与剩余n个所述像素电极轴对称，其对称轴平行于所述第一主干。
  7. 根据权利要求3所述的阵列基板，其中，
    同一所述像素电极中，所述第一主干的数量为三个，所述第二主干的数量为两个，三个所述第一主干与两个所述第二主干将所述像素电极分为八个尺寸相同的所述分区；
    三个所述第一主干平行设置，所述像素电极关于位于中央的所述第一主干轴对称。
  8. 根据权利要求3所述的阵列基板，其中，所述第二主干的延伸方向相对于所述偏光板的透过轴方向倾斜8°～12°。
  9. 根据权利要求1所述的阵列基板，其中，所述第一主干的延伸方向垂直于所述偏光板的吸收轴方向。
  10. 根据权利要求9所述的阵列基板，其中，同一所述像素电极中，所述第一主干的数量为一个，所述第一主干与所述第二主干将所述像素电极分为四个尺寸相同的所述分区。
  11. 根据权利要求10所述的阵列基板，其中，所述第二主干的数量为两个，所述像素电极关于所述第一主干轴对称。
  12. 根据权利要求10所述的阵列基板，其中，
    所述第二主干的数量一个；
    所述阵列基板包括多个电极组，所述电极组包括2n个相同尺寸并依次相连的所述像素电极，n为正整数；
    同一所述电极组的所述2n个所述像素电极的第一主干的延伸方向相互平行，其中前n个所述像素电极与剩余n个所述像素电极轴对称，其对称轴平行于所述第一主干。
  13. 根据权利要求9所述的阵列基板，其中，
    同一所述像素电极中，所述第一主干的数量为三个，所述第二主干的数量为两个，三个所述第一主干与两个所述第二主干将所述像素电极分为八个尺寸相同的所述分区；
    三个所述第一主干平行设置，所述像素电极关于位于中央的所述第一主干轴对称。
  14. 根据权利要求9所述的阵列基板，其中，所述第二主干的延伸方向相对于所述偏光板的吸收轴方向倾斜8°～12°。
  15. 根据权利要求1所述的阵列基板，其中，所述像素电极的多个所述分区内的所述分支的延伸方向与所述偏光板的吸收轴方向的夹角为45°。
  16. 根据权利要求1所述的阵列基板，其中，
    所述像素电极还包括环状的边框，所述边框包围并连接所述第一主干、所述第二主干以及所述分支；
    所述边框包括相互连接的第一边以及第二边。
  17. 根据权利要求16所述的阵列基板，其中，
    所述第一边的延伸方向平行于所述第一主干的延伸方向。
  18. 根据权利要求16所述的阵列基板，其中，
    所述第二边的延伸方向平行于所述第二主干的延伸方向。
  19. 一种阵列基板，包括：
    多个电极组，所述电极组包括两个像素电极；
    所述像素电极包括：
    第一主干，延伸方向平行于所述偏光板的吸收轴方向；
    第二主干，与所述第一主干交叉设置而将所述像素电极分为四个尺寸相同的分区；所述第二主干的延伸方向相对于所述偏光板的透光轴方向倾斜8°～12°；
    分支，分布于所述多个分区内，与所述第一主干或所述第二主干连接；
    边框，所述边框包括相互连接的第一边以及第二边，所述第一边的延伸方向平行于所述第一主干的延伸方向，所述第二边的延伸方向平行于所述第二主干的延伸方向；
    同一所述电极组的两个所述像素电极的第一主干的延伸方向相互平行，同一所述电极组的两个所述像素电极关于所述第一主干轴对称。
  20. 一种显示面板，包括偏光板以及阵列基板；
    所述偏光板位于所述阵列基板的一侧；
    阵列基板包括像素电极，
    所述像素电极包括：
    第一主干；
    第二主干，与所述第一主干交叉设置而将所述像素电极分为多个尺寸相同的分区；
    分支，分布于所述多个分区内；所述分支与所述第一主干或所述第二主干连接；各个分区内的所述分支的延伸方向不同；
    所述第二主干的延伸方向相对于偏光板的吸收轴方向倾斜。
PCT/CN2018/120626 2018-11-29 2018-12-12 阵列基板以及显示面板 Ceased WO2020107538A1 (zh)

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CN104280944A (zh) * 2013-07-10 2015-01-14 群创光电股份有限公司 液晶显示装置
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