WO2020087663A1 - 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
WO2020087663A1
WO2020087663A1 PCT/CN2018/119593 CN2018119593W WO2020087663A1 WO 2020087663 A1 WO2020087663 A1 WO 2020087663A1 CN 2018119593 W CN2018119593 W CN 2018119593W WO 2020087663 A1 WO2020087663 A1 WO 2020087663A1
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WIPO (PCT)
Prior art keywords
side portion
array substrate
frame
branch
holes
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Ceased
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PCT/CN2018/119593
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English (en)
French (fr)
Inventor
刘忠念
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HKC Co Ltd
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HKC Co Ltd
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Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to US17/272,932 priority Critical patent/US11366365B2/en
Publication of WO2020087663A1 publication Critical patent/WO2020087663A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/136—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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G02F1/136218—Shield 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
    • G02F1/136—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
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • 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
    • G02F1/136—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
    • G02F1/136213—Storage capacitors associated with the pixel electrode

Definitions

  • the present application relates to the field of display technology, in particular to an array substrate and a display panel.
  • the display panel usually includes an array substrate and a color filter substrate disposed oppositely. Liquid crystal molecules are filled between the array substrate and the color filter substrate.
  • the array substrate is provided with a pixel electrode located inside the sub-pixel and a first common electrode located at the edge of the sub-pixel.
  • the color filter substrate is provided with a second common electrode having the same potential as the first common electrode.
  • the pixel electrode is configured to supply power to the sub-pixel light-emitting display.
  • the first common electrode includes a shielding electrode plate, and there is no voltage difference between the shielding electrode plate and the second common electrode, so that all liquid crystal molecules between the two stand up to block the light source, thereby making the edge of the subpixel appear dark.
  • the electric field on the pixel electrode is easily affected by the electric field on the first common electrode (shield plate), and dark lines are formed at the edges of the sub-pixels, thereby affecting the panel transmittance.
  • an array substrate and a display panel that can improve the dark edge of each sub-pixel.
  • An array substrate including:
  • the first common electrode including the shielding electrode plate
  • the pixel electrode is insulated from the first common electrode, and includes a frame surrounded by the orthographic projection of the shielding electrode plate and a branch surrounded by the frame, the branch is connected to the frame, and the frame includes separate The first side portion and the second side portion, the first side portion is connected to the branch, and the second side portion is located between the first side portion and the shield electrode plate.
  • the first common electrode further includes a capacitor electrode plate connected to the shield electrode plate, and the capacitor electrode plate and the second side portion form a storage capacitor.
  • the frame has a through hole, and the first side portion and the second side portion are on opposite sides of the through hole.
  • the number of the through holes is one.
  • the number of the through holes is greater than one.
  • the pixel electrode further includes a trunk, the branches are connected to both sides of the trunk, the trunk divides the internal area of the pixel electrode into a plurality of domains, each of the domains The extension directions of the branches are different, and the frame corresponding to the domain has the through hole.
  • the through hole in the frame corresponding to the domain is the same length as the part of the frame.
  • one of the domains corresponds to one of the through holes.
  • one of the domains corresponds to a plurality of the through holes.
  • the through hole is opposite to the branch.
  • one through hole is disposed opposite to the corresponding one of the branches.
  • one of the through holes is disposed opposite to the corresponding plurality of branches.
  • the number of the through holes is greater than one, and the distance between each of the through holes on both sides of the first edge and the corresponding branch is the same.
  • the number of the through holes is greater than one, and the distance between the first side portion and the second side portion located on both sides of each through hole is the same.
  • the shielding electrode plate only partially surrounds the frame.
  • the shielding electrode plate surrounds all of the frame.
  • the number of the through holes is greater than one
  • the first common electrode further includes a capacitive electrode plate connected to the shielding electrode plate, and a portion of the frame between each of the through holes is set as A storage capacitor is formed with the capacitor plate.
  • the second side portion is also arranged to form a storage capacitor with the capacitor plate.
  • An array substrate including:
  • the first common electrode includes a shield electrode plate and a capacitor electrode plate connected to each other;
  • the pixel electrode is insulated from the first common electrode and includes a frame, a trunk, and a branch.
  • the trunk and the branch are connected to the frame and surrounded by the frame;
  • the frame includes a first side portion, a second side portion, and a plurality of through holes, the first side portion and the second side portion are on opposite sides of the through hole, and the first side portion is connected
  • the branch, the second side portion is located between the first side portion and the shielding electrode plate, and the second side portion and the capacitor electrode plate form a storage capacitor;
  • the main stem includes a first stem and a second stem, the first stem crosses the second stem and divides the internal area of the pixel electrode into four domains of equal size; the branches are distributed in each of the In the domains, the trunk and the frame are connected, and the extension directions of the branches in the domains are different.
  • a display panel including:
  • Liquid crystal, color film substrate and array substrate Liquid crystal, color film substrate and array substrate
  • the array substrate includes:
  • the first common electrode including the shielding electrode plate
  • the pixel electrode is insulated from the first common electrode, and includes a frame surrounded by the orthographic projection of the shielding electrode plate and a branch surrounded by the frame, the branch is connected to the frame, and the frame includes separate A first side portion and a second side portion, the first side portion is connected to the branch, and the second side portion is located between the first side portion and the shielding electrode plate;
  • the array substrate is disposed opposite to the color filter substrate, and the liquid crystal molecules are located between the color filter substrate and the array substrate.
  • the color filter substrate includes a second common electrode, and the second common electrode is The first common electrode equipotential
  • the second side of the frame of the pixel electrode is located between the first side and the shielding electrode plate.
  • the first side portion and the second side portion connecting the branches are separated from each other. Therefore, the electric field of the shielding plate mainly affects the electric field on the second side, which effectively reduces the influence of the electric field of the shielding plate on the branch on which the liquid crystal molecules transmit light, thereby effectively improving the dark edge phenomenon.
  • FIG. 1 is a schematic diagram of a display panel in an embodiment
  • 2 to 4 are schematic diagrams of the array substrate in different embodiments.
  • the array substrate and display panel provided by the present application can be applied to liquid crystal display devices such as liquid crystal televisions.
  • a display panel which includes an array substrate 100, a color filter substrate 200 and liquid crystal molecules 300.
  • the array substrate 100 is opposite to the color filter substrate 200.
  • the liquid crystal molecules 300 are located between the array substrate 100 and the color filter substrate 200.
  • the array substrate 100 includes a first common electrode 110, a pixel electrode 120, an insulating layer 130, and the like.
  • the first common electrode 110 and the pixel electrode 120 are insulated from each other by the insulating layer 130 therebetween.
  • the color filter substrate 200 includes a second common electrode 210.
  • the second common electrode 210 and the first common electrode 110 have the same potential.
  • the display panel includes a plurality of pixel units.
  • Each pixel unit has multiple sub-pixels, for example, red sub-pixel R, green sub-pixel G, and blue sub-pixel B.
  • the color filter substrate 200 may have color resist layers including color resists of different colors. The color of each sub-pixel can be realized by color blocks of different colors.
  • Each pixel electrode 120 is opposite to a part of the second common electrode 210.
  • Each sub-pixel corresponds to a pixel electrode 120.
  • a plurality of sub-pixels may share a second common electrode 210.
  • the sub-pixel may include a pixel electrode 120, a second common electrode 210 opposite to the pixel electrode 120, and liquid crystal molecules 300 therebetween.
  • the liquid crystal molecules 300 in each sub-pixel may be deflected when the pixel electrode 120 and the second common electrode 210 form a voltage difference, thereby allowing each sub-pixel to transmit light.
  • the array substrate 100 may further include thin film transistors.
  • the pixel electrode 120 is electrically connected to the drain electrode of the thin film transistor to charge the sub-pixel.
  • the second common electrode 210 is equipotentially electrically connected to the first common electrode 120, so that the second common electrode 210 can be powered by the first common electrode 120.
  • the first common electrode 110 includes a shield electrode 111.
  • the shielding plate 111 is located between each sub-pixel, and is opposed to the second common electrode 210 between each sub-pixel.
  • the first common electrode 110 and the second common electrode 210 have the same potential, and the shield electrode 111 is a part of the first common electrode 110. Therefore, the second common electrode 210 between the shielding plate 111 and each sub-pixel has the same potential, that is, there is no voltage difference between the two.
  • the liquid crystal molecules 300 between the shielding electrode 111 and the second common electrode 210 between each sub-pixel stand along the equipotential line, thereby blocking the light source, so that each sub-pixel is displayed in a dark state.
  • the mutual influence between the electric fields also causes the electric field effect on the shielding electrode 111 to affect the electric field on the pixel electrode 120 nearby.
  • the pixel electrode 120 includes a frame 121 and a branch 122.
  • the frame 121 surrounds the branch 122.
  • the branch 122 is connected to the frame 121.
  • the frame 121 is surrounded by the orthographic projection of the shield electrode 111.
  • the shielding electrode plate 111 may only surround a part of the frame 121 (refer to FIGS. 2 to 4), or may form a surrounding structure around all the frames 121 (not shown), which is not limited in this application.
  • the electric field generated by the voltage on the branch 122 guides between the branch 122 and its surrounding area (for example, the area between each branch when there are multiple branches 122) and the second common electrode 210
  • the liquid crystal molecules 300 deflect and transmit light.
  • the field strength between the branch 122 and the second common electrode 210 is E 1
  • the field strength between the surrounding area of the branch 122 and the second common electrode 210 is E 2 . Since there is no voltage on the surrounding area, E 2 is weaker than E 1 .
  • the frame 121 includes a first side portion 1211 and a second side portion 1212.
  • the second side portion 1212 is located between the first side portion 1211 and the shield electrode 111. Therefore, the second side portion 1212 is easily affected by the action of the electric field on the shield electrode 111.
  • the first side portion 1211 and the second side portion 1212 are separated from each other. Therefore, the influence of the electric field on the shield electrode 111 mainly acts on the second side portion 1212, and has little effect on the first side portion 1211.
  • the branch 122 is connected to the first side 1211. Therefore, the influence of the electric field of the shielding electrode 111 on the branch 122 arranged to make the liquid crystal molecules 300 transmit light is effectively reduced, thereby effectively improving the edge dark phenomenon.
  • the first common electrode 110 further includes a capacitor plate 112 connected to the shield plate 111.
  • the capacitor plate 112 and the second side portion 1212 form a storage capacitor.
  • the storage capacitor can maintain the voltage on the pixel electrode 120 during the display process. Therefore, the arrangement of the second side portion 1212 not only reduces the influence of the electric field on the shield electrode 111 on the electric field on the branch 122, but also effectively suppresses the dark lines; at the same time, it also provides a continuous voltage supply on the pixel electrode 120 to effectively Avoid display anomalies.
  • the frame 121 has one or more through holes 1213.
  • the first side portion 1211 and the second side portion 1212 are separated on opposite sides of the through hole 1213, so that the first side portion 1211 and the second side portion 1212 are separated from each other conveniently and effectively.
  • the form in which the first side portion 1211 and the second side portion 1212 are separated from each other is not limited to the formation of the above-mentioned through-hole isolation, and it can also be implemented in other ways (for example, the two On both sides of the part, the two form an "H" shape with the connecting part and then separate), this application does not limit this.
  • the pixel electrode 120 further includes a stem 123.
  • Branches 122 are connected on both sides of the trunk 123.
  • the trunk 123 divides the pixel electrode 120 into a plurality of domains, so that there are a plurality of domains within one sub-pixel.
  • the extension direction of the branch 122 in each domain is different. Therefore, when a voltage is applied, the tilt directions of the liquid crystal molecules 300 in the respective domains are different. Therefore, the liquid crystal molecules 300 in one sub-pixel have multiple tilt directions. In this way, it is more conducive to the wide viewing angle display of the display panel.
  • the frame 121 corresponding to the domain of the sub-pixel has a through hole 1213. Therefore, the frame 121 corresponding to the domain can be divided into the first side portion 1211 and the second side portion 1212 through the through hole 1213, thereby effectively improving the dark streak phenomenon in the sub-pixel domain.
  • the dark pattern phenomenon can be effectively improved in each domain, thereby effectively suppressing the edge dark pattern in the entire sub-pixel.
  • the through hole 1213 in the frame 121 corresponding to the domain of the sub-pixel is the same length as the partial frame 121. Therefore, the frame 121 corresponding to the domain includes a first side portion 1211 and a second side portion 1212. The branches 122 in the domain are all separated from the second side portion 1212 by the through hole 1213, so that the generation of dark lines can be effectively suppressed in the entire domain.
  • the embodiment of the present application does not limit the number of through holes 1213, and it may be one or more than one.
  • one domain may correspond to one through hole 1213, or one domain may correspond to multiple through holes 1213, which is not limited in this application.
  • the through holes 1213 are disposed opposite to the branches 122, so that the dark lines around each branch 122 can be effectively improved.
  • the through hole 1213 is arranged opposite to the branch 122, and may be a through hole 1213 arranged opposite to a corresponding branch 122 (refer to FIG. 3), or a through hole 1213 and several corresponding branches 122 (refer to FIG. 2 or 4) Relative settings and so on.
  • the first common electrode 110 when the number of through holes 1213 is greater than one, and the first common electrode 110 further includes a capacitor plate 112 connected to the shielding plate 111, a part of the frame 121 between each through hole 1213 can also be used to The capacitor plate 112 forms a storage capacitor. Therefore, the capacity of the storage capacitor can be increased on the basis of the storage plate formed by the capacitor plate 112 and the second side portion 1212.
  • the number of through holes 1213 is greater than one.
  • Each through hole 1213 located on both sides of the first side portion 1211 has the same distance from the corresponding branch 122, that is, the first side portion 1211 corresponding to each through hole 1213 has the same width. Therefore, it is advantageous to make the dark lines around the branches 122 uniform.
  • the number of through holes 1213 is greater than one.
  • the distance between the first side portion 1211 and the second side portion 1212 on both sides of each through hole 1213 is the same, that is, the width of each through hole 1213 is the same. Therefore, the through holes 1213 can make the electric field isolation effect on the shielding electrode plate 111 the same, which is also conducive to display uniformity.
  • each through hole 1213 and the first side portion 1211 corresponding to each through hole 1213 may have the same width. At this time, the improvement of dark lines around each branch 122 can be made more uniform.
  • this application is not limited to this.
  • Each through hole 1213 and the first side portion 1211 corresponding to each through hole 1213 may also have one of unequal widths, or both of them may be unequal widths.
  • the array substrate 100 includes a first common electrode 110 and a pixel electrode 120.
  • the first common electrode 110 includes a shield electrode 111 and a capacitor electrode 112 connected to each other.
  • the shielding plate 111 is opposed to the second common electrode 210 between the sub-pixels, so that the liquid crystal molecules 300 before the two are shielded from light and display a dark state.
  • the pixel electrode 120 includes a frame 121, a trunk 123, and a branch 122.
  • the frame 121 connects and surrounds the trunk 123 and the branch 122.
  • the frame 121 includes a first side portion 1211, a second side portion 1212, and a plurality of through holes 1213.
  • the first side portion 1211 and the second side portion 1212 are separated on opposite sides of the through hole 1213.
  • the first side portion 1211 is connected to the branch 122.
  • the second side portion 1212 is located between the first side portion 1211 and the shield plate 111, so that the electric field of the shield plate 111 mainly affects the electric field on the second side portion 1212, and is separated from the second side portion 1212 (through The hole 1213 is separated) and the influence of the branch 122 connected to the first side portion 1211 is small, thereby improving the dark edge of the edge near the branch 122.
  • the second side portion 1212 and the capacitor plate 112 form a storage capacitor.
  • the storage capacitor maintains the voltage on the pixel electrode 120 during display.
  • the trunk 123 includes a first trunk 1231 and a second trunk 1232.
  • the first stem 1231 and the second stem 1232 cross and divide the inner area of the pixel electrode 120 into four domains of equal size.
  • the branches 122 are distributed in the domains and connect the trunk 123 and the frame 121.
  • the length direction of the branch 122 in each domain is different.
  • the angle between the extension direction of the branch 122 in the four domains and a trunk 123 (for example, the first trunk 1231) may be ⁇ 45 ° and ⁇ 135 °, respectively.
  • the tilt directions of the liquid crystal molecules 300 in the four domains are all different.
  • the liquid crystal molecules 300 in one sub-pixel have four tilt directions.
  • the second side of the frame of the pixel electrode is located between the first side and the shielding electrode plate.
  • the first side portion and the second side portion connecting the branches are separated from each other. Therefore, the electric field of the shielding electrode plate mainly affects the electric field on the second side, which effectively reduces the influence of the electric field of the shielding electrode plate on the branch arranged to make the liquid crystal molecules transmit light, thereby effectively improving the edge dark phenomenon.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Power Engineering (AREA)

Abstract

本申请的阵列基板包括：第一公共电极，包括屏蔽极板；像素电极，与第一公共电极相互绝缘，包括被屏蔽极板的正投影围绕的边框以及被边框包围的分支。分支连接边框。边框包括相互分离的第一边部与第二边部。第一边部连接分支。第二边部位于第一边部与屏蔽极板之间。可选地，第一公共电极还包括与屏蔽极板连接的电容极板，电容极板与第二边部形成存储电容。

Description

阵列基板以及显示面板
本申请要求于2018年10月29日提交中国专利局、申请号为201821760058.6、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。
随着显示技术的发展，各种液晶显示装置(如液晶电视等)被广泛应用。其显示面板通常包括相对设置的阵列基板和彩膜基板。阵列基板和彩膜基板之间填充有液晶分子。
阵列基板中设置有位于子像素内部的像素电极以及位于子像素边缘的第一公共电极。彩膜基板上设置有与第一公共电极等电位的第二公共电极。像素电极设置为为子像素出光显示供电。第一公共电极包括屏蔽极板，屏蔽极板与第二公共电极间没有电压差，使得二者之间的液晶分子全部站立而遮住光源，进而使得子像素边缘显示为暗态。
显示面板工作时，像素电极上的电场容易受到第一公共电极(屏蔽极板)上的电场影响，而在子像素边缘形成暗纹，从而影响面板的穿透率。
申请内容
根据本申请的各种实施例，提供一种能够改善各子像素的边缘暗纹的阵列基板以及显示面板。
一种阵列基板，包括：
第一公共电极，包括屏蔽极板；
像素电极，与所述第一公共电极相互绝缘，包括被所述屏蔽极板的正投影围绕的边框以及被所述边框包围的分支，所述分支连接所述边框，所述边框包括相互分离的第一边部与第二边部，所述第一边部连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间。
在其中一个实施例中，所述第一公共电极还包括与屏蔽极板连接的电容极板，所述电容极板与所述第二边部形成存储电容。
在其中一个实施例中，所述边框中具有通孔，所述第一边部与所述第二边部分居所述通孔的相对的两侧。
在其中一个实施例中，所述通孔的数量为一个。
在其中一个实施例中，所述通孔的数量大于一个。
在其中一个实施例中，所述像素电极还包括主干，所述主干两侧连接有所述分支，所述主干将所述像素电极的内部区域分为多个畴，各个所述畴中的所述分支的延伸方向不同，所述畴对应的边框中具有 所述通孔。
在其中一个实施例中，所述畴对应的边框中的所述通孔与该部分边框等长。
在其中一个实施例中，一个所述畴对应一个所述通孔。
在其中一个实施例中，一个所述畴对应多个所述通孔。
在其中一个实施例中，所述通孔与所述分支相对设置。
在其中一个实施例中，一个所述通孔与对应的一个所述分支相对设置。
在其中一个实施例中，一个所述通孔与对应的多个所述分支相对设置。
在其中一个实施例中，所述通孔的数量大于1，位于所述第一边部两侧的各个所述通孔与相对应的所述分支的距离相同。
在其中一个实施例中，所述通孔的数量大于1，位于各个所述通孔的两侧的第一边部与第二边部之间的距离相同。
在其中一个实施例中，所述屏蔽极板只围绕部分所述边框。
在其中一个实施例中，所述屏蔽极板围绕全部所述边框。
在其中一个实施例中，所述通孔的数量大于1，所述第一公共电极还包括与所述屏蔽极板连接的电容极板，各所述通孔之间的部分所述边框设置为与所述电容极板形成存储电容。
在其中一个实施例中，所述第二边部也设置为与所述电容极板与形成存储电容。
一种阵列基板，包括：
第一公共电极，包括相互连接的屏蔽极板与电容极板；
像素电极，与所述第一公共电极相互绝缘，包括边框、主干以及分支，所述主干与所述分支连接所述边框并被所述边框包围；
所述边框包括第一边部、第二边部以及多个通孔，所述第一边部与所述第二边部分居所述通孔的相对的两侧，所述第一边部连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间，并且所述第二边部与所述电容极板形成存储电容；
所述主干包括第一干与第二干，所述第一干与所述第二干交叉并将所述像素电极的内部区域分为四个大小相等的畴；所述分支分布于各所述畴中并连接所述主干与所述边框，各个所述畴中的所述分支的延伸方向不同。
一种显示面板，包括：
液晶、彩膜基板以及阵列基板；
所述阵列基板包括：
第一公共电极，包括屏蔽极板；
像素电极，与所述第一公共电极相互绝缘，包括被所述屏蔽极板的正投影围绕的边框以及被所述边框包围的分支，所述分支连接所述边框，所述边框包括相互分离的第一边部与第二边部，所述第一边部连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间；
所述阵列基板与所述彩膜基板相对设置，所述液晶分子位于所述彩膜基板与所述阵列基板之间，所述彩膜基板包括第二公共电极，所述第二公共电极与所述第一公共电极等电位
上述阵列基板，像素电极的边框的第二边部位于第一边部与屏蔽极板之间。而连接分支的第一边部与第二边部相互分离。因此，屏蔽极板的电场主要影响第二边部上的电场，有效降低了屏蔽极板的电场对用于使得液晶分子透光的分支上的电场的影响，进而有效改善边缘暗纹现象。
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发明的实施例和/或示例，可以参考一幅或多幅附图。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发明、目前描述的实施例和/或示例以及目前理解的这些发明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-图4为不同实施例中阵列基板示意图。
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以及显示面板，可以应用于液晶电视等液 晶显示装置之中。
在一个实施例中，如图1所示，提供了一种显示面板，包括阵列基板100、彩膜基板200以及液晶分子300。阵列基板100与彩膜基板200相对设置。液晶分子300位于阵列基板100和彩膜基板200之间。阵列基板100包括第一公共电极110、像素电极120以及绝缘层130等。第一公共电极110与像素电极120通过二者之间的绝缘层130相互绝缘。彩膜基板200包括第二公共电极210。第二公共电极210与第一公共电极110等电位。
具体地，显示面板包括多个像素单元。每个像素单元中具有多个子像素，例如：红色子像素R、绿色子像素素G、蓝色子像素B。彩膜基板200上可以具有包括不同颜色色阻的色阻层。各子像素的颜色可通过不同颜色的色阻实现。
每个像素电极120均与部分第二公共电极210相对设置。每个子像素均对应一个像素电极120。多个子像素可以共用一个第二公共电极210。子像素可以包括像素电极120、与像素电极120相对的第二公共电极210以及二者之间的液晶分子300。各子像素中的液晶分子300可以在像素电极120与第二公共电极210形成电压差的情况下偏转，进而使得各子像素透光显示。
阵列基板100中还可以具有薄膜晶体管。像素电极120通过与薄膜晶体管的漏极电极电连接，进而对子像素进行充电。而第二公共电极210与第一公共电极120等电位电连接，进而可以通过第一公共电极120对第二公共电极210进行供电。
第一公共电极110包括屏蔽极板111。屏蔽极板111位于各子像素之间，其与各子像素之间的第二公共电极210相对。第一公共电极110与第二公共电极210等电位，而屏蔽极板111是第一公共电极110的一部分。因此，屏蔽极板111与各子像素之间的第二公共电极210等电位，即二者之间没有电压差。屏蔽极板111与各子像素之间的第二公共电极210之间的液晶分子300沿着等势线站立，进而遮住光源，使得各子像素之间显示为暗态。但是，电场之间的相互影响，也使得屏蔽极板111上的电场作用影响其附近的像素电极120上的电场。
参考图2，像素电极120包括边框121与分支122。边框121包围在分支122的四周。分支122连接边框121。边框121被屏蔽极板111的正投影围绕。屏蔽极板111可以只围绕部分边框121(参考图2至图4)，也可以围绕全部的边框121(未图示)而形成包围结构，本申请对此不做限制。
显示面板在进行正常显示时，分支122上的电压产生的电场引导分支122及其周围区域(例如，分支122数量为多个时，各分支之间的区域)与第二公共电极210之间的液晶分子300偏转而透光。分支122与第二公共电极210之间场强为E 1，分支122的周围区域与第二公共电极210之间场强为E 2。由于周围区域上没有电压，因此E 2相对E 1较弱。因此，当分支122靠近屏蔽极板111处的电压产生的电场受到屏蔽极板111上的电压产生的电场的影响而变弱时，此处的周围区域与第二公共电极210之间场强为E 2变得更弱，导致对应的液晶分子300容易偏转混乱而不能正常透光，而使得子像素边缘容易产 生暗纹，影响面板的穿透率。
本申请实施例中，边框121包括第一边部1211与第二边部1212。第二边部1212位于第一边部1211与屏蔽极板111之间。因此，第二边部1212易受屏蔽极板111上的电场作用影响。第一边部1211与第二边部1212相互分离。因此，屏蔽极板111上的电场影响主要作用在第二边部1212，而对第一边部1211影响很小。分支122与第一边部1211连接。因此，屏蔽极板111的电场对设置为使得液晶分子300透光的分支122上的电场的影响被有效降低，进而有效改善了边缘暗纹现象。
在一个实施例中，同时参考图1与图2，第一公共电极110还包括与屏蔽极板111连接的电容极板112。电容极板112与第二边部1212形成存储电容。存储电容在显示过程中，可以保持像素电极120上的电压持续。因此，第二边部1212的设置既设降低了屏蔽极板111上的电场对分支122上的电场影响，而有效抑制暗纹；同时，又使得像素电极120上具有持续的电压供给，以有效避免显示异常。
在一个实施例中，边框121中具有一个或者一个以上通孔1213。第一边部1211与第二边部1212分居通孔1213的相对的两侧，进而方便有效地实现第一边部1211与第二边部1212的相互分离。当然，本申请实施例中，第一边部1211与第二边部1212相互分离的形式并不限于上述通孔隔离的形成，其也可以通过其他方式实现(例如，二者可以连接在一连接部两侧，二者与连接部形成“H”状进而分离)，本申请对此并不做限制。
参考图4，在一个实施例中，像素电极120还包括主干123。主干123两侧连接有分支122。主干123将像素电极120分为多个畴，使得一个子像素内具有多个畴。各个畴中的分支122的延伸方向不同。因此，当施加了电压时，各个畴内的液晶分子300的倾斜方向不同。所以，一个子像素内液晶分子300具有多种倾斜方向。这样，更加有利于显示面板的广视野角显示。
子像素的畴对应的边框121中具有通孔1213。因此，可以通过通孔1213将畴对应的边框121分为第一边部1211与第二边部1212，进而使得子像素的畴中可有效改善暗纹现象。每个畴对应的边框121中均具有通孔1213时，各个畴中均可有效改善暗纹现象，进而使得整个子像素中的边缘暗纹得到有效抑制。
继续参考图4，在一个实施例中，子像素的畴对应的边框121中的通孔1213与该部分边框121等长。因此，该畴对应的边框121均包括第一边部1211与第二边部1212。该畴中的分支122均通过通孔1213与第二边部1212隔离，进而使得整个畴中均可有效抑制暗纹的产生。
本申请实施例对通孔1213的数量并不做限制，其可以为一个也可以为一个以上。当通孔1213数量大于一个时，可以是一个畴对应一个通孔1213，也可以一个畴对应多个通孔1213，本申请对此不做限制。
在一个实施例中，通孔1213与分支122相对设置，进而使得每个分支122周围的暗纹均可被有效改善。通孔1213与分支122相对 设置，可以是一个通孔1213与对应的一个分支122相对设置(参考图3)，也可以是一个通孔1213与对应的几个等分支122(参考图2或图4)相对设置等等。
本申请实施例中，当通孔1213的数量大于一个，且第一公共电极110还包括与屏蔽极板111连接的电容极板112时，各通孔1213之间的部分边框121也可用来与电容极板112形成存储电容。因此，可以在电容极板112与第二边部1212形成存储电容的基础上增加存储电容的容量。
在一个实施例中，通孔1213的数量大于一个。位于第一边部1211两侧的各个通孔1213与相对应的分支122的距离相同，即各个通孔1213对应的第一边部1211等宽。因此，有利于各个分支122周围的暗纹改善情况的均匀化。
在一个实施例中，通孔1213的数量大于一个。位于各个通孔1213的两侧的第一边部1211与第二边部1212之间的距离相同，即各个通孔1213的宽度相同。因此，可以使得各个通孔1213对于屏蔽极板111上的电场隔离作用相同，也利于显示均匀化。
本申请实施例中，当通孔1213的数量大于一个时，可以同时设置各个通孔1213以及各个通孔1213对应的第一边部1211均等宽。此时，可使得各个分支122的周围的暗纹改善情况更加均匀一致。当然，本申请不以此为限制，各个通孔1213以及各个通孔1213对应的第一边部1211也可以有一者不等宽，或者二者也可以均不等宽。
在一个实施例中，如图1以及图4所示，阵列基板100包括第一 公共电极110以及像素电极120。第一公共电极110包括相互连接的屏蔽极板111与电容极板112。屏蔽极板111与各子像素之间的第二公共电极210相对，进而使得二者之前的液晶分子300遮光而显示暗态。像素电极120包括边框121、主干123以及分支122。
边框121连接且包围主干123与分支122。并且，边框121包括第一边部1211、第二边部1212以及多个通孔1213。第一边部1211与第二边部1212分居通孔1213的相对的两侧。
第一边部1211连接分支122。第二边部1212位于第一边部1211与屏蔽极板111之间，进而使得屏蔽极板111的电场主要影响第二边部1212上的电场，而对与第二边部1212分离(通过通孔1213分离)的第一边部1211上连接的分支122的影响很小，进而改善分支122附近的边缘暗纹。
第二边部1212与电容极板112形成存储电容。存储电容在显示过程中，保持像素电极120上的电压持续。
主干123包括第一干1231与第二干1232。第一干1231与第二干1232交叉并将像素电极120的内部区域分为四个大小相等的畴。分支122分布于各畴中且连接主干123与边框121。各个畴中的分支122的长度方向均不同。四个畴中的分支122的延伸方向与一主干123(例如第一干1231)的夹角可分别为±45°、±135°。此时，当施加了电压时，四个畴内的液晶分子300的倾斜方向均不同。一个子像素内液晶分子300具有四种倾斜方向。各个畴中可以具有多个分支122，一个畴中的多个分支122之间可以具有固定的间隔。
综上所述，本申请提供的阵列基板，像素电极的边框的第二边部位于第一边部与屏蔽极板之间。而连接分支的第一边部与第二边部相互分离。因此，屏蔽极板的电场主要影响第二边部上的电场，有效降低了屏蔽极板的电场对设置为使得液晶分子透光的分支上的电场的影响，进而有效改善边缘暗纹现象。
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实用新型专利范围的限制。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：
    第一公共电极，包括屏蔽极板；
    像素电极，与所述第一公共电极相互绝缘，包括被所述屏蔽极板的正投影围绕的边框以及被所述边框包围的分支，所述分支连接所述边框，所述边框包括相互分离的第一边部与第二边部，所述第一边部连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间。
  2. 根据权利要求1所述的阵列基板，其中，所述第一公共电极还包括与屏蔽极板连接的电容极板，所述电容极板与所述第二边部形成存储电容。
  3. 根据权利要求1所述的阵列基板，其中，所述边框中具有通孔，所述第一边部与所述第二边部分居所述通孔的相对的两侧。
  4. 根据权利要求3所述的阵列基板，其中，所述通孔的数量为一个。
  5. 根据权利要求3所述的阵列基板，其中，所述通孔的数量大于一个。
  6. 根据权利要求3所述的阵列基板，其中，所述像素电极还包括主干，所述主干两侧连接有所述分支，所述主干将所述像素电极的内部区域分为多个畴，各个所述畴中的所述分支的延伸方向不同，所述畴对应的边框中具有所述通孔。
  7. 根据权利要求6所述的阵列基板，其中，所述畴对应的边框中的所述通孔与该部分边框等长。
  8. 根据权利要求6所述的阵列基板，其中，一个所述畴对应一个所述通孔。
  9. 根据权利要求6所述的阵列基板，其中，一个所述畴对应多个所述通孔。
  10. 根据权利要求3所述的阵列基板，其中，所述通孔与所述分支相对设置。
  11. 根据权利要求10所述的阵列基板，其中，一个所述通孔与对应的一个所述分支相对设置。
  12. 根据权利要求10所述的阵列基板，其中，一个所述通孔与对应的多个所述分支相对设置。
  13. 根据权利要求10所述的阵列基板，其中，所述通孔的数量大于1，位于所述第一边部两侧的各个所述通孔与相对应的所述分支的距离相同。
  14. 根据权利要求3所述的阵列基板，其中，所述通孔的数量大于1，位于各个所述通孔的两侧的第一边部与第二边部之间的距离相同。
  15. 根据权利要求1所述的阵列基板，其中，所述屏蔽极板只围绕部分所述边框。
  16. 根据权利要求1所述的阵列基板，其中，所述屏蔽极板围绕全部所述边框。
  17. 根据权利要求3所述的阵列基板，其中，所述通孔的数量大于1，所述第一公共电极还包括与所述屏蔽极板连接的电容极板，各 所述通孔之间的部分所述边框设置为与所述电容极板形成存储电容。
  18. 根据权利要求17所述的阵列基板，其中，所述第二边部也设置为与所述电容极板与形成存储电容。
  19. 一种阵列基板，包括：
    第一公共电极，包括相互连接的屏蔽极板与电容极板；
    像素电极，与所述第一公共电极相互绝缘，包括边框、主干以及分支，所述主干与所述分支连接所述边框并被所述边框包围；
    所述边框包括第一边部、第二边部以及多个通孔，所述第一边部与所述第二边部分居所述通孔的相对的两侧，所述第一边部连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间，并且所述第二边部与所述电容极板形成存储电容；
    所述主干包括第一干与第二干，所述第一干与所述第二干交叉并将所述像素电极的内部区域分为四个大小相等的畴；所述分支分布于各所述畴中并连接所述主干与所述边框，各个所述畴中的所述分支的延伸方向不同。
  20. 一种显示面板，包括：
    液晶、彩膜基板以及阵列基板；
    所述阵列基板包括：
    第一公共电极，包括屏蔽极板；
    像素电极，与所述第一公共电极相互绝缘，包括被所述屏蔽极板的正投影围绕的边框以及被所述边框包围的分支，所述分支连接所述边框，所述边框包括相互分离的第一边部与第二边部，所述第一边部 连接所述分支，所述第二边部位于所述第一边部与所述屏蔽极板之间；
    所述阵列基板与所述彩膜基板相对设置，所述液晶分子位于所述彩膜基板与所述阵列基板之间，所述彩膜基板包括第二公共电极，所述第二公共电极与所述第一公共电极等电位。
PCT/CN2018/119593 2018-10-29 2018-12-06 阵列基板以及显示面板 Ceased WO2020087663A1 (zh)

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