WO2013078903A1 - 阵列基板、液晶面板及显示设备 - Google Patents
阵列基板、液晶面板及显示设备 Download PDFInfo
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- WO2013078903A1 WO2013078903A1 PCT/CN2012/081844 CN2012081844W WO2013078903A1 WO 2013078903 A1 WO2013078903 A1 WO 2013078903A1 CN 2012081844 W CN2012081844 W CN 2012081844W WO 2013078903 A1 WO2013078903 A1 WO 2013078903A1
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- electrode layer
- pixel electrode
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- pixel
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Classifications
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134381—Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates
Definitions
- Embodiments of the present invention relate to an array substrate, a liquid crystal panel, and a display device. Background technique
- a voltage is applied between a pixel electrode (for example, an ITO (Indium Tin Oxide) electrode) and a common electrode (for example, an ITO electrode) to form an electric field, and the liquid crystal is controlled to control the liquid crystal.
- a pixel electrode for example, an ITO (Indium Tin Oxide) electrode
- a common electrode for example, an ITO electrode
- the TFT-LCD may include two types of In Plane Switching (IPS) type and Advanced Super Dimension Switch (ADSDS or ADS).
- IPS In Plane Switching
- ADSDS Advanced Super Dimension Switch
- the spacing between the electrodes is small, and a surface electric field is generated between the electrodes when a voltage is applied, and the liquid crystal can only rotate at the portion to realize the light valve, thereby causing the light to be penetrated. limit.
- ADS type display mode a multi-dimensional electric field is formed by an electric field generated by the edge of the slit electrode in the same plane and an electric field generated between the slit electrode layer and the plate electrode layer, so that the slit electrode between the liquid crystal cells is formed.
- All of the aligned liquid crystal molecules directly above the electrode can be rotated, thereby improving the liquid crystal working efficiency and increasing the light transmission efficiency.
- Advanced super-dimensional field switching technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, no squeeze water wave (ush Mura), etc. advantage.
- FIG 1 is a cross-sectional view showing the structure of a conventional ADS type display.
- the structure of the ADS type display includes: a color filter substrate C and an array substrate A, and a liquid crystal layer 5 filled between the color filter substrate C and the array substrate A.
- the color filter substrate C includes a glass substrate 2 and a color film layer 6, and the array substrate A includes a glass substrate 71, a pixel electrode layer 3, a common electrode layer 4, and an insulating layer 72. Further, a polarizing plate 1 is attached to both the color filter substrate C and the outer side of the array substrate A.
- Pixel electrode layer plate electrode
- the positive and negative electrodes of the third electrode and the common electrode layer (slit electrode) 4 are arranged to be overlapped by the insulating layer 72.
- the above electrode layer generates a multi-dimensional electric field after being energized during operation, so that the liquid crystal molecules between the electrodes and the electrodes rotate in the plane of the panel.
- FIG. 2 is a view for explaining the pixel electrode layer 3 in the structure of the above-described conventional ADS type display Schematic diagram of a pixel electrode (e.g., ITO electrode) 31 and a common electrode (e.g., ITO electrode) 41 of the common electrode layer 4. Since the aperture ratio and the capacitive coupling effect are taken into consideration in the design, there is a certain distance between the edge of the pixel electrode 31 and the edge of the common electrode 41, which may cause uneven light transmission at the edge of the pixel, resulting in light transmission of the liquid crystal display. The effect is not uniform overall. Summary of the invention
- Embodiments of the present invention provide an array substrate, a liquid crystal panel, and a display device for solving the problem of uneven light transmission effect of the existing liquid crystal panel.
- An aspect of the present invention provides an array substrate, the array substrate includes a pixel electrode layer and a common electrode layer, wherein the common electrode layer is provided with a plurality of common electrodes, and the pixel electrode layer is provided with a plurality of pixel electrodes
- the projections of the respective common electrodes on the pixel electrode layer in a vertical direction overlap or partially overlap with the corresponding pixel electrodes, respectively.
- the pixel electrode layer includes adjacent first pixel electrodes and second pixel electrodes
- the common electrode layer includes a first common electrode above the data lines, wherein two opposite edges of the first common electrode Projection lines on the pixel electrode layer in the vertical direction are respectively located on the first pixel electrode and the second pixel electrode.
- the adjacent edges of the first pixel electrode and the second pixel electrode are located on the first common electrode in a vertical direction at a projection line of the common electrode layer.
- the common electrode layer further includes a second common electrode, and two opposite edges of the second common electrode are located on the same pixel electrode in a vertical direction at a projection line of the pixel electrode layer.
- the common electrode layer is parallel to the pixel electrode layer, and the common electrode layer is located above or below the pixel electrode layer.
- a liquid crystal panel including an opposite substrate and an array substrate, wherein the array substrate includes a pixel electrode layer and a common electrode layer, wherein the common electrode layer is provided with a plurality of common electrodes.
- a plurality of pixel electrodes are disposed on the pixel electrode layer, wherein projections of the common electrodes on the pixel electrode layer in a vertical direction overlap or partially overlap with the corresponding pixel electrodes, respectively.
- a further aspect of the present invention provides a display device including an array substrate, the array substrate includes a pixel electrode layer and a common electrode layer, wherein the common electrode layer is provided with a plurality of common electrodes, and the pixel electrode layer a plurality of pixel electrodes are disposed thereon, wherein each of the common electrodes is sag Projections on the pixel electrode layer in a straight direction overlap or partially overlap the corresponding pixel electrodes, respectively.
- the display device described above wherein the pixel electrode layer includes adjacent first pixel electrodes and second pixel electrodes, and the common electrode layer includes a first common electrode located above the data lines, wherein the first A projection line of the two opposite edges of a common electrode in the vertical direction on the pixel electrode layer is located on the first pixel electrode and the second pixel electrode, respectively.
- the common electrode layer further includes a second common electrode, and two opposite edges of the second common electrode are located at the same pixel electrode in a vertical direction at a projection line of the pixel electrode layer on.
- the common electrode layer is parallel to the pixel electrode layer, and the common electrode layer is located above the pixel electrode layer.
- Figure 1 is a cross-sectional view showing the structure of a conventional ADS type display
- FIG. 2 is a schematic view showing a structural relationship between a pixel electrode and a common electrode in the structure of a conventional ADS type display
- Figure 3 is a plan view of an array substrate of an embodiment of the present invention.
- FIG. 4 is a schematic diagram showing a structural relationship between a pixel electrode layer and a common electrode layer in an array substrate according to an embodiment of the present invention
- Figure 5 is an enlarged view of a portion of the broken line in Figure 4.
- Embodiment 1 of the present invention provides an array substrate.
- 3 shows a plan view of the array substrate 100.
- the array substrate 100 includes a plurality of gate lines 13 and a plurality of data lines 14, and the gate lines 13 and the data lines 14 cross each other to define a plurality of sub-pixel units arranged in an array.
- Each sub-pixel unit is used, for example, to display a pixel point such as a certain color (e.g., red, green, or blue). The following description will be made for two sub-pixel units adjacent to each other in one or a row.
- the array substrate 100 includes a pixel electrode layer 10 and a common electrode layer 20.
- a plurality of common electrodes 21, 22 are disposed on the common electrode layer, and a plurality of pixel electrodes 11, 12 are disposed on the pixel electrode layer.
- Each of the sub-pixel units includes a pixel electrode and a thin film transistor T as a switching element.
- the gate of the thin film transistor ⁇ is electrically connected to a gate line
- the source is electrically connected to one data line
- the drain is electrically connected to the pixel electrode in the corresponding sub-pixel unit.
- Projections of the respective common electrodes on the pixel electrode layer in a vertical direction overlap or partially overlap with the corresponding pixel electrodes, respectively. That is, a projection line of the edge of the common electrode of the common electrode layer on the pixel electrode layer in the vertical direction is located on one of the pixel electrodes of the pixel electrode layer.
- the pixel electrode is, for example, a plate electrode
- the common electrode includes a slit portion formed with a plurality of slits, for example, parallel to each other, the slit portion being, for example, a portion for the sub-pixel for display .
- FIG. 4 is a schematic view showing a structural relationship between a pixel electrode layer and a common electrode layer in an array substrate according to Embodiment 1 of the present invention, showing a cross-sectional view taken along line ⁇ - ⁇ in FIG. 3; and
- FIG. 5 is a portion of a broken line frame in FIG. Magnified view.
- the array substrate of Embodiment 1 of the present invention can be used for a liquid crystal panel including an array substrate, a counter substrate, and a liquid crystal layer sandwiched between the array substrate and the opposite substrate, the array substrate including the pixel electrode layer and the common electrode layer
- the pixel electrode layer and the common electrode layer are respectively located on different layers, and a super-dimensional electric field can be formed between each other to drive the liquid crystal layer.
- the structure of the liquid crystal panel of the embodiment of the present invention is generally similar to that of the conventional ADS type liquid crystal panel shown in FIG. 1, and will not be described herein.
- the common electrode layer 20 As shown in FIG. 4 and FIG. 5, in the array substrate of Embodiment 1 of the present invention, the common electrode layer 20 The pixel electrode layer 10 is parallel, and the common electrode layer 20 is located above the pixel electrode layer 10. Compared with the conventional structure shown in FIG. 2, the array substrate of Embodiment 1 of the present invention performs the relative structure between the pixel electrodes 11, 12 on the pixel electrode layer 10 and the common electrodes 21, 22 on the common electrode layer 20.
- the vertical projection of each common electrode on the pixel electrode layer 10 is overlapped or partially overlapped with the corresponding pixel electrode 11, 12 respectively, that is, the projection line of the edge of the common electrode 21, 22 of the common electrode layer at the pixel electrode layer Located on a certain pixel electrode 11, 12 of the pixel electrode layer.
- the common electrode layer 20 includes a first common electrode 21.
- a first edge of the first common electrode 21 is located on a pixel electrode in a direction perpendicular to the direction of the array substrate (vertical direction) on the pixel electrode layer 10, and a second edge of the first common electrode 21 is in a vertical direction
- the projection line on the pixel electrode layer 10 is located on the other pixel electrode. As shown in FIG. 5, the second edge of the first common electrode 21 and the first edge of the first common electrode 21 are opposite edges.
- a gate line (not shown) and a data line 14 are disposed on the array substrate, and the pixel electrode layer 10 includes a first pixel electrode 11 and a second pixel electrode 12, which are respectively located on the data line 14.
- the opposite sides, that is, respectively, are located in two sub-pixel units adjacent to each other in one row (as shown in FIG. 3).
- the first common electrode 21 is parallel to and faces the data line 14.
- the first common electrode 21 is located directly above the data line 14, wherein the first edge of the first common electrode 21 is projected in the vertical direction onto the projection line I on the pixel electrode layer 10, and is located at the first pixel electrode 11
- the projection line II of the second edge of the first common electrode 21 on the pixel electrode layer 10 is located on the second pixel electrode 12.
- the first edge of the first pixel electrode 11 is located on the first common electrode 21 along the projection line III of the common electrode layer 20 in the vertical direction; the first edge of the second pixel electrode 12 is in the vertical direction in the common
- the projection line IV of the electrode layer 20 is also located on the first common electrode 21.
- the first edge of the first pixel electrode 11 is adjacent to the edge of the data line 14, and the first edge of the second pixel electrode 12 is also the edge of the adjacent data line 14, that is, the first pixel electrode 11
- the first edge of one edge and the second pixel electrode 12 are respectively two adjacent edges.
- the common electrode layer 20 further includes a common electrode located outside the first common electrode 21, that is, the second common electrode 22 as shown in FIGS. 4 and 5.
- the second common electrode 22 is a common electrode portion in which a slit electrode is formed in a pixel unit region.
- the first common electrode 21 is a portion for connecting the second common electrode 22 of the laterally adjacent two pixel units, which appears above and overlaps the data line 14.
- a projection line V of the first edge of the second common electrode 22 on the pixel electrode layer 10 in the vertical direction is located on a pixel electrode 11, and a second edge of the second common electrode 22 is on the pixel electrode layer 10.
- a projection line (not shown) is also located on a pixel electrode such that a vertical projection of the second common electrode 22 on the pixel electrode layer 10 overlaps with one of the pixel electrodes.
- the second common electrode 22 is a common electrode on the left side of the first common electrode 21, one of the pixel electrodes is the first pixel electrode 11 in the pixel electrode layer 10.
- the three common electrodes are disposed on the common electrode layer, and two pixel electrodes are disposed on the pixel electrode layer as an example, and the structure between the pixel electrode layer and the common electrode layer in the array substrate of Embodiment 1 of the present invention is as follows. It was explained. Referring to FIG. 4 and FIG. 5, the array substrate includes a plurality of common electrodes, and the projections of the two opposite edges of the common electrodes in the vertical direction on the pixel electrode layer are located on the corresponding pixel electrodes, and are viewed in a vertical direction. Forming overlapping structures. Similarly, the array substrate includes a plurality of pixel electrodes, and the projections of the two opposite edges of the respective pixel electrodes on the common electrode layer are respectively located on the corresponding common electrodes, and the overlapping structures are formed in the vertical direction. .
- the array substrate of Embodiment 1 of the present invention can implement the method of increasing the width of the pixel electrode, the method of increasing the width of the common electrode, or the method of increasing the width of the pixel electrode and the width of the common electrode simultaneously.
- the array substrate shown in Fig. 4 and Fig. 5 is described by taking the common electrode layer above the pixel electrode layer as an example, and the structure of the first embodiment of the present invention is described.
- the pixel electrode layer is located above the common electrode layer, similar structural arrangement can be performed as well, and will not be described in detail herein.
- Embodiment 2 of the present invention provides a liquid crystal panel including: an array substrate, a counter substrate (for example, a color filter substrate), and a liquid crystal layer filled between the array substrate and the opposite substrate, a pixel electrode layer and a common electrode layer are disposed on the array substrate, wherein the pixel electrode layer Forming an electric field between the common electrode layer and deflecting liquid crystal molecules of the liquid crystal layer, the common electrode layer is provided with a plurality of common electrodes, and the pixel electrode layer is provided with a plurality of pixel electrodes, wherein each of the plurality of pixel electrodes The projection of the common electrode on the pixel electrode layer overlaps or partially overlaps with the corresponding pixel electrode. That is, the edge of the common electrode of the common electrode layer on the projection line of the pixel electrode layer is located on one of the pixel electrodes of the pixel electrode layer.
- the liquid crystal panel of Example 2 was the same as the array substrate of Example 1.
- the color filter substrate includes, for example, a glass substrate or a plastic substrate as a base substrate and a color film layer.
- the color film layer may have, for example, red, green, and blue sub-pixel units corresponding to corresponding sub-pixel units of the array substrate.
- a color film layer is formed on the array substrate, and correspondingly includes, for example, red, green, and blue sub-pixel units.
- Embodiment 3 of the present invention also provides a display device, including a liquid crystal display device and other types of display devices.
- the liquid crystal display device may be a liquid crystal television, a mobile phone, a liquid crystal display or the like, and includes a color filter substrate, and the array substrate in the above-described Embodiment 1.
- the liquid crystal display device includes a liquid crystal panel, wherein the liquid crystal panel includes: an array substrate, an opposite substrate (eg, a color filter substrate), and a liquid crystal layer filled between the array substrate and the opposite substrate, on the array substrate a pixel electrode layer and a common electrode layer are disposed, wherein an electric field is formed between the pixel electrode layer and the common electrode layer to deflect liquid crystal molecules of the liquid crystal layer; and a plurality of common electrodes are disposed on the common electrode layer.
- a plurality of pixel electrodes are disposed on the pixel electrode layer, wherein projections of the common electrodes on the pixel electrode layer overlap or partially overlap with corresponding pixel electrodes, respectively.
- the liquid crystal display device of Example 2 used the liquid crystal panel described in Example 2.
- the liquid crystal display device may further include components such as a backlight, a driving circuit, and the like.
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Priority Applications (1)
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US13/704,696 US9195100B2 (en) | 2011-12-01 | 2012-09-24 | Array substrate, liquid crystal panel and display device with pixel electrode and common electrode whose projections are overlapped |
Applications Claiming Priority (2)
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CN2011103929054A CN102636921A (zh) | 2011-12-01 | 2011-12-01 | 阵列基板、液晶面板及显示设备 |
CN201110392905.4 | 2011-12-01 |
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PCT/CN2012/081844 WO2013078903A1 (zh) | 2011-12-01 | 2012-09-24 | 阵列基板、液晶面板及显示设备 |
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US (1) | US9195100B2 (zh) |
CN (1) | CN102636921A (zh) |
WO (1) | WO2013078903A1 (zh) |
Families Citing this family (8)
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CN104317160A (zh) * | 2014-09-19 | 2015-01-28 | 京东方科技集团股份有限公司 | 掩膜版、利用其形成的隔垫物及利用其制备隔垫物的方法 |
CN105068340B (zh) * | 2015-09-21 | 2018-11-06 | 京东方科技集团股份有限公司 | 阵列基板、显示装置及其制作方法 |
US9927666B2 (en) * | 2016-04-20 | 2018-03-27 | a.u. Vista Inc. | Liquid crystal display systems and related methods |
CN109541861A (zh) | 2017-09-22 | 2019-03-29 | 京东方科技集团股份有限公司 | 像素结构、阵列基板及显示装置 |
CN110032008A (zh) * | 2018-01-19 | 2019-07-19 | 京东方科技集团股份有限公司 | 显示面板及其制作方法、液晶显示装置 |
CN108398834A (zh) | 2018-03-22 | 2018-08-14 | 京东方科技集团股份有限公司 | 显示面板以及制备显示面板的方法 |
TWI699594B (zh) * | 2019-03-15 | 2020-07-21 | 友達光電股份有限公司 | 顯示裝置 |
CN112363348A (zh) * | 2020-12-10 | 2021-02-12 | 深圳市华星光电半导体显示技术有限公司 | 多域垂直配向型显示面板及其显示装置 |
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2011
- 2011-12-01 CN CN2011103929054A patent/CN102636921A/zh active Pending
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2012
- 2012-09-24 WO PCT/CN2012/081844 patent/WO2013078903A1/zh active Application Filing
- 2012-09-24 US US13/704,696 patent/US9195100B2/en active Active
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CN102636921A (zh) | 2012-08-15 |
US9195100B2 (en) | 2015-11-24 |
US20140049741A1 (en) | 2014-02-20 |
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