WO2019029137A1 - 阵列基板及液晶显示面板 - Google Patents

阵列基板及液晶显示面板 Download PDF

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WO2019029137A1
WO2019029137A1 PCT/CN2018/074345 CN2018074345W WO2019029137A1 WO 2019029137 A1 WO2019029137 A1 WO 2019029137A1 CN 2018074345 W CN2018074345 W CN 2018074345W WO 2019029137 A1 WO2019029137 A1 WO 2019029137A1
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Prior art keywords
sub
electrode
pixel
region electrode
region
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PCT/CN2018/074345
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English (en)
French (fr)
Inventor
宋乔乔
张蒙蒙
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US15/781,489 priority Critical patent/US10921666B2/en
Publication of WO2019029137A1 publication Critical patent/WO2019029137A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements

Definitions

  • the present invention relates to the field of liquid crystal display panels, and in particular, to an array substrate and a liquid crystal display panel.
  • the existing VA (Vertical Alignment) type liquid crystal display panel has become a mainstream product in the market due to its wide viewing angle and high contrast.
  • 1 is a schematic diagram showing an equivalent circuit of a pixel unit of a liquid crystal display panel of the prior art.
  • the pixel electrode of each pixel unit is divided into a main area electrode and a sub-area electrode, the main area electrode is driven by the thin film transistor T1, and the sub-area electrode is composed of thin film transistors T2 and T3.
  • the liquid crystal display panel performs progressive scan driving.
  • the scan signal on the scan line Gateen is at a high level
  • the scan signal on the scan line Gaten+1 is at a low level
  • the thin film transistor T1 and T2 is turned on
  • the thin film transistor T3 is turned off
  • the liquid crystal formed by the sub-region electrode and the common electrode com are formed by the data signal on the data line Datan.
  • the capacitor Clc2 and the storage capacitor Cst2 start to charge until the data signal voltage is reached, so that the voltages of the main region electrode and the sub-region electrode reach the data signal voltage.
  • the scan signal on the scan line Gateen becomes a low level
  • the scan signal of the scan line Gaten+1 becomes a high level
  • the thin film transistors T1 and T2 are turned off
  • the thin film transistor T3 is turned on.
  • the voltage of the electrode in the secondary region begins to change, so that there is a certain difference from the voltage of the electrode in the main region, and the low color shift effect is achieved by this voltage difference.
  • each pixel unit requires three thin film transistors, and the structure is relatively complicated, so the aperture ratio is low.
  • Another object of the present invention is to provide a liquid crystal display panel using the above array substrate.
  • the present invention provides an array substrate comprising a plurality of sub-pixel groups arranged in an array, each of the sub-pixel groups comprising a first sub-pixel, a second sub-pixel and a third switch component, the first sub-pixel comprising a first main a region electrode, a first sub-region electrode and a first switch component, the first switch component controls conduction of the first main-region electrode and the first sub-region electrode, and the second sub-pixel includes a second main a second electrode assembly that controls the second main area electrode and the second sub-area electrode to be turned on, and a second switch unit that connects the first a secondary region electrode and the second secondary region electrode, the third switching component controlling the first secondary region electrode and the second secondary region electrode to communicate to lower the first secondary region electrode and the second secondary electrode The voltage of the zone electrode.
  • the method further includes a plurality of scan lines, each of the plurality of sub-pixel groups corresponding to one scan line, the third switch component includes a first connection end, a second connection end, and a control end, wherein the first connection end is connected to the The first area electrode, the second connection end is connected to the second sub-area electrode, and the control end is connected to the scan line corresponding to the sub-pixel group of the adjacent row.
  • the method further includes a plurality of data lines disposed across the plurality of scan lines, the first switch component includes a first thin film transistor and a second thin film transistor, and the second switch component includes a third thin film transistor and a fourth a thin film transistor having a gate connected to the first scan line, a source connected to the first data line, a drain connected to the first main region electrode, and a gate of the second thin film transistor
  • the first scan line is connected, the source is connected to the first data line, the drain is connected to the first sub-area electrode, and the gate of the third thin film transistor is connected to the first scan line, the source
  • the pole is connected to the second data line, the drain is connected to the second sub-area electrode, the gate of the fourth thin film transistor is connected to the first scan line, the source is connected to the second data line, and the drain is connected A pole is connected to the second main zone electrode.
  • the third switch component is a fifth thin film transistor, and one of the first connection end and the second connection end is a source and the other is a drain, and the control end is a gate.
  • the color of the first sub-pixel and the second sub-pixel are the same, and the color of the sub-pixel group of the adjacent row of the same column is different.
  • the color of the sub-pixel group is one of red, green, and blue.
  • the first sub-pixel and the second sub-pixel are in an 8-domain structure.
  • the first main region electrode, the first sub-region electrode, the second main region electrode, and the second sub-region electrode have a 4-domain structure.
  • the potential on the first main-region electrode is greater than the potential on the first sub-region electrode; the potential on the second main-region electrode is greater than the potential on the second sub-region electrode.
  • the present invention also provides a liquid crystal display panel comprising the array substrate according to any one of the above.
  • the first sub-region electrode and the second sub-region electrode are connected to reduce the voltage of the first sub-region electrode and the second sub-region electrode to achieve a wide viewing angle effect.
  • the array substrate of the present invention can reduce the number of switching units, simplify the pixel structure, reduce the manufacturing cost, and increase the aperture ratio of the liquid crystal display panel.
  • 1 is a schematic diagram of an equivalent circuit of a prior art array substrate.
  • FIG. 2 is a schematic view of an array substrate according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the circuit principle of the array substrate of FIG. 2.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined.
  • the ground connection, or the integral connection may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • FIG. 1 is a schematic diagram of an array substrate according to an embodiment of the present invention.
  • the embodiment includes a plurality of sub-pixel groups arranged in an array.
  • Each of the sub-pixel groups includes a first sub-pixel D1, a second sub-pixel D2, and a third switch component T15.
  • the colors of the first sub-pixel D1 and the second sub-pixel D2 in the same sub-pixel group are the same. That is to say, each sub-pixel group represents a color.
  • the colors of adjacent sub-pixel groups are different. It can be understood that the color of the plurality of sub-pixel groups set by the array may be one of red, green, and blue.
  • the first sub-pixel D1 includes a first main area electrode S1, a first sub-area electrode S2, and a first switch component T1.
  • the second sub-pixel D2 includes a second main area electrode S4, a second sub-area electrode S3, and a second switching element T2.
  • the first switch component T1 is configured to control conduction of the first main-region electrode S1 and the first sub-region electrode S2, and the first main-region electrode S1 and the first time are applied by applying different voltages
  • the liquid crystals in the pixel regions corresponding to the region electrodes S2 achieve different deflection angles.
  • the adjacent sub-pixels are driven by the positive polarity inversion driving and the negative polarity inversion, respectively, and the color shift phenomenon between adjacent sub-pixels is suppressed.
  • the second switch component T2 controls the second main-region electrode S4 and the second sub-region electrode S3 to be turned on, and the second main-region electrode S4 and the second sub-region electrode S3 are caused by applying different voltages.
  • the liquid crystals in the corresponding pixel regions realize different deflection angles and transmit a certain amount of light, thereby improving the problem of the large-view character bias.
  • the first sub-pixel D1 and the second sub-pixel D2 are both 8-domain structures. More specifically, the first main-region electrode S1, the first sub-region electrode S2, the second main-region electrode S4, and the second-order sub-region S3 have a 4-domain structure. That is to say, each sub-pixel has an 8-domain structure, and the main region and the sub-region in each sub-pixel have a 4-domain structure.
  • the sub-pixel structure of the 8-domain structure The sub-pixel structure of the 8-domain structure can improve the phenomenon of color distortion of a large viewing angle with respect to the sub-pixel structure of the 4-domain structure.
  • the third switch component T15 is connected to the first sub-region electrode S2 and the second sub-region electrode S3, and the third switch component T15 controls the first sub-region electrode S2 and the second sub-region electrode S3 to communicate.
  • the first sub-region motor and the second sub-region electrode S3 perform charge sharing, thereby reducing the voltage of the sub-region electrodes (ie, the first sub-region electrode S2 and the second sub-region electrode S3), thereby achieving display of a wide viewing angle. effect.
  • two adjacent sub-pixels in the sub-pixel group are connected by a switch unit, and specifically, two sub-regions corresponding to two sub-pixels in the same pixel group are connected by the third switch component T15.
  • An electrode ie, the first sub-region electrode S2 and the second sub-region electrode S3
  • the third switch component T15 controls the first sub-region electrode S2 and the second sub-region electrode S3 to communicate
  • the voltages of the first sub-region electrode S2 and the second sub-region electrode S3 are described to achieve a wide viewing angle.
  • the array substrate of the present embodiment can reduce the number of switching units, simplify the array substrate, reduce the manufacturing cost, and increase the aperture ratio of the liquid crystal display panel.
  • the array substrate further includes a plurality of scan lines (ie, an exemplary representation of Gate n, Gate n+1 in FIG. 3) and a plurality of data lines (ie, a map).
  • a plurality of scan lines ie, an exemplary representation of Gate n, Gate n+1 in FIG. 3
  • a plurality of data lines ie, a map
  • the plurality of scan lines and the plurality of data lines are disposed at intersection, the plurality of sub-pixel groups being formed at an intersection of the plurality of scan lines and the plurality of data lines region.
  • the plurality of sub-pixel groups located in the same row correspond to the same scan line, and the scan lines are in one-to-one correspondence with the number of rows of the pixel structure.
  • Each sub-pixel has a one-to-one correspondence with one data line.
  • the first switch component T1 includes a first thin film transistor T11 and a second thin film transistor T12
  • the second switch component T2 includes a third thin film transistor T13 and a fourth thin film transistor T14.
  • the gates of the first thin film transistor T11, the second thin film transistor T12, the third thin film transistor T13, and the fourth thin film transistor T14 are connected to the same scan line Gate n.
  • the scan line Gate n is a scan line corresponding to the sub-pixel group.
  • the source of the thin film transistor T11 is connected to the nth data line Datan (ie, the first data line), the drain is connected to the first main area electrode S1, and the first main area electrode S1 and the Nth scan line Gate n form a memory.
  • the capacitor CstA, the first main-region electrode S1 and the common electrode com form a main-region liquid crystal capacitor CLcA;
  • the source of the thin film transistor T12 is connected to the n-th data line Data n, and the drain is connected to the first sub-region electrode S2, the first time
  • the region electrode S2 forms a storage capacitor Csta with the Nth scan line Gate n, and the first sub-region electrode S2 and the common electrode com form a main-region liquid crystal capacitor CLca.
  • the source of the third thin film transistor T13 is connected to the data line Datan+1, and the source of the fourth thin film transistor T14 is connected to the data line Datan+1.
  • the drains of the first thin film transistor T11 and the second thin film transistor T12 and the drains of the third thin film transistor T13 and the fourth thin film transistor T14 are respectively connected to two adjacent data. line.
  • the drain of the third thin film transistor T13 is connected to the second sub-region electrode S3, and the drain of the fourth thin film transistor T14 is connected to the second main-region electrode S4.
  • the second area electrode S3 forms a storage capacitor Cstb with the Nth scan line Gate n
  • the second area electrode S3 forms a primary area liquid crystal capacitance CLcb with the common electrode com.
  • the second main-region electrode S4 forms a storage capacitor CstB with the N-th scan line Gate n
  • the second main-region electrode S4 and the common electrode com form a main-region liquid crystal capacitor CLcB.
  • the third switch component T15 includes a first connection end, a second connection end, and a control end, the first connection end is connected to the first sub-area electrode S2, and the second connection end is connected to the second sub-area In the electrode S3, the control end is connected to the scan line Gate n+1 corresponding to the sub-pixel group of the adjacent row.
  • the third switch component T15 is a fifth thin film transistor, and the first connection end may be a source; correspondingly, the second connection end is a drain, and the control end is a gate. In other embodiments of the present invention, the first connection end may also be a drain; correspondingly, the second connection end is a source.
  • the scan signal on the nth scan line Gate n is at a high level, so that the first thin film transistor T11 and the second thin film transistor T12 are turned on, the nth strip
  • the driving voltage on the data line Data n is sent to the first main-region electrode S1 and the first sub-region electrode S2 through the first thin film transistor T11 and the second thin film transistor T12, and the common electrode corresponding to the first main-region electrode S1 at this time
  • Applying a constant voltage on com such that a first voltage difference d1 is formed on the first main-region electrode S1 and the common electrode com; a periodic inversion voltage is applied to the common electrode com corresponding to the first sub-region electrode S2, so that the first The secondary region electrode S2 forms a second differential pressure d2 with the common electrode com.
  • the difference between the first differential pressure d1 and the second differential pressure d2 may be set as needed, such that the liquid crystal in the pixel region corresponding to the first main-region electrode and the liquid crystal in the pixel region corresponding to the first sub-region electrode Deviation of a certain angular difference, thereby reducing the color shift phenomenon.
  • the scan signal on the nth scan line Gate n is at a high level, so that the third thin film transistor T13 and the fourth thin film transistor T14 are turned on, the n+1th data line Data n
  • the driving voltage on +1 is transmitted to the second main-region electrode S4 and the second sub-region electrode S3 through the thin film transistor T11, and a constant voltage is applied to the common electrode com corresponding to the second main-region electrode S4 at this time, so that the second A first voltage difference d1 is formed on the main electrode and the common electrode com; a periodic inversion voltage is applied to the common electrode com corresponding to the second sub-region electrode S3, so that the second sub-region electrode S3 forms the same as the common electrode com.
  • the difference between the first differential pressure d1 and the second differential pressure d2 may be set as needed, such that the liquid crystal in the pixel region corresponding to the second main-region electrode S4 is within the pixel region corresponding to the second sub-region electrode S3.
  • the liquid crystal deflects a certain angular difference, thereby reducing the color shift phenomenon. It can be understood that the fifth thin film transistor T15 is turned off at this time.
  • the first thin film transistor T11 and the second thin film The drain of the transistor T12 is turned off, the third thin film transistor T13 and the fourth thin film transistor T14 are turned off, the fifth thin film transistor T15 is turned on, and the first sub-region electrode S2 is connected to the second sub-region electrode S3. And discharging each other, sharing charges to lower the voltages of the first sub-region electrode S2 and the second sub-region electrode S3, achieving a wide viewing angle effect.
  • the potential of the secondary region electrode is lower than the potential of the primary region electrode.
  • the main area electrode is brighter, the sub-area electrode is darker, and the liquid crystal molecules have 8 kinds of liquid crystals reversed, and the viewing angle is better.
  • the present invention also provides a liquid crystal display panel comprising the array substrate of any of the above embodiments. It can be understood that the liquid crystal display panel of the present invention can be applied to any electronic device having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

一种阵列基板及液晶显示面板，包括阵列设置的多个子像素组，每个子像素组包括第一子像素（D1）、第二子像素（D2）及第三开关组件（T15），第一子像素（D1）包括第一主区电极（S1）、第一次区电极（S2）和第一开关组件（T1），第二子像素（D2）包括第二主区电极（S4）、第二次区电极（S3）和第二开关组件（T2），第二开关组件（T2）控制第二主区电极（S4）及第二次区电极（S3）导通，第三开关组件（T15）连接第一次区电极（S2）和第二次区电极（S3），第三开关组件（T15）控制第一次区电极（S2）和第二次区电极（S3）连通以降低第一次区电极（S2）和第二次区电极（S3）的电压。阵列基板可以减少开关单元的数量，简化像素结构，降低制造成本，同时提升液晶显示面板的开口率。

Description

阵列基板及液晶显示面板
本发明要求2017年8月9日递交的发明名称为“阵列基板及液晶显示面板”的申请号2017106762125的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示面板领域，尤其涉及一种阵列基板及液晶显示面板。
背景技术
现有的VA(VerticalAlignment，垂直对齐)型液晶显示面板以其宽的视角、高对比度等优势，已经成为市场的主流产品。图1为现有技术的液晶显示面板的像素单元的等效电路示意图。每一个像素单元的像素电极分为主区电极和次区电极两部分，主区电极由薄膜晶体管T1驱动，次区电极由薄膜晶体管T2、T3。具体地，液晶显示面板进行逐行扫描驱动，当扫描至第n行时，扫描线Gaten上的扫描信号为高电平，扫描线Gaten+1上的扫描信号为低电平，薄膜晶体管T1和T2导通，薄膜晶体管T3截止，在数据线Datan上的数据信号的作用下，主区电极与公共电极com形成的的液晶电容Clc1和存储电容Cst1，以及次区电极与公共电极com形成的液晶电容Clc2和存储电容Cst2开始充电，直至达到数据信号电压，从而使得主区电极和次区电极的电压均达到数据信号电压。当扫描至第n+1行时，扫描线Gaten上的扫描信号变为低电平，扫描线Gaten+1的扫描信号变为高电平，薄膜晶体管T1和T2截止，薄膜晶体管T3导通，次区电极的电压开始发生变化，从而与主区电极的电压有一定的差异，通过这种电压差使得低色偏效果得以实现。这种结构的液晶显示面板中，每个像素单元需要3个薄膜晶体管组成，结构较复杂，因此开口率低。
故，有必要提供一种阵列基板及液晶显示面板，以解决现有技术所存在的问题。
发明内容
本发明的目的在于提供一种阵列基板，可以简化像素结构，提升液晶显示 面板的开口率。
本发明的另一目的在于提供一种采用上述阵列基板的液晶显示面板。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明提供一种阵列基板，包括阵列设置的多个子像素组，每个所述子像素组包括第一子像素、第二子像素及第三开关组件，所述第一子像素包括第一主区电极、第一次区电极和第一开关组件，所述第一开关组件控制所述第一主区电极及所述第一次区电极的导通，所述第二子像素包括第二主区电极、第二次区电极和第二开关组件，所述第二开关组件控制所述第二主区电极及所述第二次区电极导通，所述第三开关组件连接所述第一次区电极和所述第二次区电极，所述第三开关组件控制所述第一次区电极和所述第二次区电极连通以降低所述第一次区电极和所述第二次区电极的电压。
其中，还包括多条扫描线，每一行的多个子像素组对应一条扫描线，所述第三开关组件包括第一连接端、第二连接端和控制端，所述第一连接端连接所述第一次区电极，所述第二连接端连接所述第二次区电极，所述控制端连接相邻行的子像素组对应的扫描线。
其中，还包括与所述多条扫描线交叉设置的多条数据线，所述第一开关组件包括第一薄膜晶体管和第二薄膜晶体管，所述第二开关组件包括第三薄膜晶体管和第四薄膜晶体管，所述第一薄膜晶体管的栅极与第一扫描线连接，源极与第一数据线连接，漏极连接至所述第一主区电极，所述第二薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第一数据线连接，漏极连接至所述第一次区电极，所述第三薄膜晶体管的栅极与所述第一扫描线连接，源极与第二数据线连接，漏极连接至所述第二次区电极，所述第四薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第二数据线连接，漏极连接至所述第二主区电极。
其中，所述第三开关组件为第五薄膜晶体管，所述第一连接端和所述第二连接端中的一个为源极，另一个为漏极，所述控制端为栅极。
其中，所述第一子像素与所述第二子像素的颜色相同，同一列相邻行的子像素组的颜色不同。
其中，所述子像素组的颜色为红、绿、蓝中的一种。
其中，所述第一子像素和所述第二子像素为8畴结构。
其中，所述第一主区电极、所述第一次区电极、所述第二主区电极和所述第二次区电极均为4畴结构。
其中，所述所述第一主区电极上的电位大于所述第一次区电极上的电位；所述第二主区电极上的电位大于所述第二次区电极上的电位。
本发明还提供一种液晶显示面板，包括上述任意一项所述的阵列基板。
本发明实施例具有如下优点或有益效果：
本发明中的子像素组中的两个相邻的子像素通过开关单元连接，通过第三开关组件连接同一像素组中的两个子像素对应的两个次区电极，所述第三开关组件控制所述第一次区电极和第二次区电极连通，以降低所述第一次区电极和第二次区电极的电压，实现广视角的效果。本发明的阵列基板可以减少开关单元的数量，简化像素结构，降低制造成本，同时提升液晶显示面板的开口率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术的阵列基板的等效电路示意图。
图2为本发明一种实施方式的阵列基板示意图。
图3为图2中的阵列基板电路原理示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本发明保护的范围。
此外，以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明中所提到的方向用语，例如，“上”、“下”、“前”、“后”、 “左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本发明，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。若本说明书中出现“工序”的用语，其不仅是指独立的工序，在与其它工序无法明确区别时，只要能实现该工序所预期的作用则也包括在本用语中。另外，本说明书中用“～”表示的数值范围是指将“～”前后记载的数值分别作为最小值及最大值包括在内的范围。在附图中，结构相似或相同的用相同的标号表示。
请参阅图1，图1为本发明一种实施方式的阵列基板示意图。本实施方式的包括阵列设置的多个子像素组。每个所述子像素组包括第一子像素D1、第二子像素D2及第三开关组件T15。具体而言，对于同一子像素组中的第一子像素D1和第二子像素D2的颜色相同。也就是说，每个子像素组均表现一种颜色。相邻子像素组的颜色不同。可以理解的是，阵列设置的多个子像素组的颜色可以为红、绿、蓝中的一种。
具体的，所述第一子像素D1包括第一主区电极S1、第一次区电极S2和第一开关组件T1。所述第二子像素D2包括第二主区电极S4、第二次区电极S3和第二开关组件T2。所述第一开关组件T1用于控制所述第一主区电极S1及所述第一次区电极S2的导通，通过施加不同电压使得所述第一主区电极S1和所述第一次区电极S2对应的像素区域内的液晶实现不同的偏转角度。具体的，相邻子像素分别通过正极性反转驱动和负极性反转驱动，抑制了相邻子像素之间的色偏现象。所述第二开关组件T2控制所述第二主区电极S4及所述第二次区电极S3导通，通过施加不同电压使得所述第二主区电极S4和所述第 二次区电极S3对应的像素区域内的液晶实现不同的偏转角度，透过一定的光线，从而改善大视角色偏问题。
本发明一种可能的实现方式中，所述第一子像素D1和所述第二子像素D2均为8畴结构。进一步具体的，对于第一主区电极S1、第一次区电极S2、第二主区电极S4、第二次区电极S3而言，均为4畴结构。也就是说，每个子像素均为8畴结构，每个子像素中的主区和次区均为4畴结构。8畴结构的子像素结构相对于4畴结构的子像素结构而言，8畴结构的子像素结构可以改善大视角颜色失真的现象。
所述第三开关组件T15连接第一次区电极S2和第二次区电极S3，所述第三开关组件T15控制用于所述第一次区电极S2和第二次区电极S3连通，使得第一次区电机和第二次区电极S3进行电荷共享，从而降低次区电极(即所述第一次区电极S2和所述第二次区电极S3)的电压，从而达到广视角的显示效果。
本发明的一种实施方式中，子像素组中的两个相邻的子像素通过开关单元连接，具体的，通过第三开关组件T15连接同一像素组中的两个子像素对应的两个次区电极(即所述第一次区电极S2和所述第二次区电极S3)，所述第三开关组件T15控制所述第一次区电极S2和第二次区电极S3连通，以降低所述第一次区电极S2和第二次区电极S3的电压，实现广视角的效果。本实施方式的阵列基板可以减少开关单元的数量，简化阵列基板，降低制造成本，同时提升液晶显示面板的开口率。
请结合参阅图3，本发明一种可能的实现方式中，所述阵列基板还包括多条扫描线(即图3中示例性表示Gate n、Gate n+1)和多条数据线(即图中示例性表示Data n、Data n+1)，所述多条扫描线和所述多条数据线交叉设置，所述多个子像素组形成于所述多条扫描线和多条数据线的交叉区域。具体的，位于同一行的多个子像素组对应同一条扫描线，所述扫描线与所述像素结构的行数一一对应。每一子像素各与一条数据线一一对应。
进一步具体的，第n条扫描线Gate n(即第一扫描线)、第n+1条扫描线Gate n+1(即第二扫描线)以及第n条数据线Data n(即第一数据线)、第n+1条数据线Data n+1(即第二数据线)交叉形成一子像素组。所述第一开关组件T1包括第一 薄膜晶体管T11和第二薄膜晶体管T12，所述第二开关组件T2包括第三薄膜晶体管T13和第四薄膜晶体管T14。所述第一薄膜晶体管T11、所述第二薄膜晶体管T12、所述第三薄膜晶体管T13和所述第四薄膜晶体管T14的栅极连接至同一扫描线Gate n。可以理解的是，该扫描线Gate n为该子像素组对应的扫描线。薄膜晶体管T11的源极与第n条数据线Data n(即第一数据线)连接，漏极连接第一主区电极S1，第一主区电极S1与第N条扫描线Gate n形成一存储电容CstA，第一主区电极S1与公共电极com形成一主区液晶电容CLcA；薄膜晶体管T12的源极与第n条数据线Data n连接，漏极连接第一次区电极S2，第一次区电极S2与第N条扫描线Gate n形成一存储电容Csta，第一次区电极S2与公共电极com形成一主区液晶电容CLca。所述第三薄膜晶体管T13的源极连接至数据线Data n+1上，且所述第四薄膜晶体管T14的源极连接至数据线Data n+1上。换而言之，所述第一薄膜晶体管T11及所述第二薄膜晶体管T12的漏极与所述第三薄膜晶体管T13及所述第四薄膜晶体管T14的漏极分别连接两条相邻的数据线。所述第三薄膜晶体管T13的漏极连接至所述第二次区电极S3，所述第四薄膜晶体管T14的漏极连接至所述第二主区电极S4。第二次区电极S3与第N条扫描线Gate n形成一存储电容Cstb，第二次区电极S3与公共电极com形成一次区液晶电容CLcb。第二主区电极S4与第N条扫描线Gate n形成一存储电容CstB，第二主区电极S4与公共电极com形成一主区液晶电容CLcB。
所述第三开关组件T15包括第一连接端、第二连接端和控制端，所述第一连接端连接所述第一次区电极S2，所述第二连接端连接所述第二次区电极S3，所述控制端连接相邻行的子像素组对应的扫描线Gate n+1。优选的，所述第三开关组件T15为第五薄膜晶体管，所述第一连接端可以为源极；相应的，所述第二连接端为漏极，所述控制端为栅极。本发明的其他实施方式中，所述第一连接端还可以为漏极；相应的，所述第二连接端为源极。
液晶显示面板工作时，当对第一子像素D1进行驱动时，第n条扫描线Gate n上的扫描信号为高电平，使得第一薄膜晶体管T11和第二薄膜晶体管T12打开，第n条数据线Data n上的驱动电压通过第一薄膜晶体管T11和第二薄膜晶体管T12送至第一主区电极S1以及第一次区电极S2，而此时与第一主区电 极S1对应的公共电极com上施加一恒定电压，使得第一主区电极S1与公共电极com上形成第一压差d1；与第一次区电极S2对应的公共电极com上施加一周期性反转电压，使得第一次区电极S2与公共电极com形成第二压差d2。具体地，可以根据需要设置第一压差d1和第二压差d2之间的差值，使得第一主区电极对应的像素区域内的液晶与第一次区电极对应的像素区域内的液晶偏转一定的角度差，从而减弱色偏现象。
当对第二子像素D2进行驱动时，第n条扫描线Gate n上的扫描信号为高电平，使得第三薄膜晶体管T13和第四薄膜晶体管T14打开，第n+1条数据线Data n+1上的驱动电压通过薄膜晶体管T11传送至第二主区电极S4以及第二次区电极S3，而此时与第二主区电极S4对应的公共电极com上施加一恒定电压，使得第二主区电极与公共电极com上形成第一压差d1；与第二次区电极S3对应的公共电极com上施加一周期性反转电压，使得第二次区电极S3与公共电极com同样形成第二压差d2。同样，可以根据需要设置第一压差d1和第二压差d2之间的差值，使得第二主区电极S4对应的像素区域内的液晶与第二次区电极S3对应的像素区域内的液晶偏转一定的角度差，从而减弱色偏现象。可以理解的是，此时所述第五薄膜晶体管T15关闭。
当第n条扫描线Gate n上的扫描信号为低电平，第n+1条扫描线Gate n+1上的扫描信号为高电平时，所述第一薄膜晶体管T11及所述第二薄膜晶体管T12的漏极与所述第三薄膜晶体管T13及所述第四薄膜晶体管T14关闭，所述第五薄膜晶体管T15打开，所述第一次区电极S2和所述第二次区电极S3相连，并且相互放电，共享电荷，以降低所述第一次区电极S2和第二次区电极S3的电压，实现广视角的效果。
此时，次区电极电位比主区电极的电位低。在实际点灯时，主区电极较亮，次区电极较暗，液晶分子具有8种液晶倒向，视角较好。
本发明还提供一种液晶显示面板，该液晶显示面板包括上述任意一种实现方式的阵列基板。可以理解的是，本发明的液晶显示面板可以应用于手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的电子装置中。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、 “具体示例”或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述的实施方式，并不构成对该技术方案保护范围的限定。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (20)

  1. 一种阵列基板，其中，包括阵列设置的多个子像素组，每个所述子像素组包括第一子像素、第二子像素及第三开关组件，所述第一子像素包括第一主区电极、第一次区电极和第一开关组件，所述第一开关组件控制所述第一主区电极及所述第一次区电极的导通，所述第二子像素包括第二主区电极、第二次区电极和第二开关组件，所述第二开关组件控制所述第二主区电极及所述第二次区电极导通，所述第三开关组件连接所述第一次区电极和所述第二次区电极，所述第三开关组件控制所述第一次区电极和所述第二次区电极连通以降低所述第一次区电极和所述第二次区电极的电压。
  2. 如权利要求1所述的阵列基板，其中，还包括多条扫描线，每一行的多个子像素组对应一条扫描线，所述第三开关组件包括第一连接端、第二连接端和控制端，所述第一连接端连接所述第一次区电极，所述第二连接端连接所述第二次区电极，所述控制端连接相邻行的子像素组对应的扫描线。
  3. 如权利要求2所述的阵列基板，其中，还包括与所述多条扫描线交叉设置的多条数据线，所述第一开关组件包括第一薄膜晶体管和第二薄膜晶体管，所述第二开关组件包括第三薄膜晶体管和第四薄膜晶体管，所述第一薄膜晶体管的栅极与第一扫描线连接，源极与第一数据线连接，漏极连接至所述第一主区电极，所述第二薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第一数据线连接，漏极连接至所述第一次区电极，所述第三薄膜晶体管的栅极与所述第一扫描线连接，源极与第二数据线连接，漏极连接至所述第二次区电极，所述第四薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第二数据线连接，漏极连接至所述第二主区电极。
  4. 如权利要求2所述的阵列基板，其中，所述第三开关组件为第五薄膜晶体管，所述第一连接端和所述第二连接端中的一个为源极，另一个为漏极，所述控制端为栅极。
  5. 如权利要求1所述的阵列基板，其中，所述第一子像素与所述第二子像素的颜色相同，同一列相邻行的子像素组的颜色不同。
  6. 如权利要求1所述的阵列基板，其中，所述子像素组的颜色为红、绿、 蓝中的一种。
  7. 如权利要求5所述的阵列基板，其中，所述子像素组的颜色为红、绿、蓝中的一种。
  8. 如权利要求1所述的阵列基板，其中，所述第一子像素和所述第二子像素为8畴结构。
  9. 如权利要求8所述的阵列基板，其中，所述第一主区电极、所述第一次区电极、所述第二主区电极和所述第二次区电极均为4畴结构。
  10. 如权利要求1所述的阵列基板，其中，所述所述第一主区电极上的电位大于所述第一次区电极上的电位；所述第二主区电极上的电位大于所述第二次区电极上的电位。
  11. 一种液晶显示面板，其中，包括阵列基板，阵列基板包括阵列设置的多个子像素组，每个所述子像素组包括第一子像素、第二子像素及第三开关组件，所述第一子像素包括第一主区电极、第一次区电极和第一开关组件，所述第一开关组件控制所述第一主区电极及所述第一次区电极的导通，所述第二子像素包括第二主区电极、第二次区电极和第二开关组件，所述第二开关组件控制所述第二主区电极及所述第二次区电极导通，所述第三开关组件连接所述第一次区电极和所述第二次区电极，所述第三开关组件控制所述第一次区电极和所述第二次区电极连通以降低所述第一次区电极和所述第二次区电极的电压。
  12. 如权利要求所11述的液晶显示面板，其中，还包括多条扫描线，每一行的多个子像素组对应一条扫描线，所述第三开关组件包括第一连接端、第二连接端和控制端，所述第一连接端连接所述第一次区电极，所述第二连接端连接所述第二次区电极，所述控制端连接相邻行的子像素组对应的扫描线。
  13. 如权利要求12所述的液晶显示面板，其中，还包括与所述多条扫描线交叉设置的多条数据线，所述第一开关组件包括第一薄膜晶体管和第二薄膜晶体管，所述第二开关组件包括第三薄膜晶体管和第四薄膜晶体管，所述第一薄膜晶体管的栅极与第一扫描线连接，源极与第一数据线连接，漏极连接至所述第一主区电极，所述第二薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第一数据线连接，漏极连接至所述第一次区电极，所述第三薄膜晶体管的 栅极与所述第一扫描线连接，源极与第二数据线连接，漏极连接至所述第二次区电极，所述第四薄膜晶体管的栅极与所述第一扫描线连接，源极与所述第二数据线连接，漏极连接至所述第二主区电极。
  14. 如权利要求12所述的液晶显示面板，其中，所述第三开关组件为第五薄膜晶体管，所述第一连接端和所述第二连接端中的一个为源极，另一个为漏极，所述控制端为栅极。
  15. 如权利要求11所述的液晶显示面板，其中，所述第一子像素与所述第二子像素的颜色相同，同一列相邻行的子像素组的颜色不同。
  16. 如权利要求11所述的液晶显示面板，其中，所述子像素组的颜色为红、绿、蓝中的一种。
  17. 如权利要求15所述的液晶显示面板，其中，所述子像素组的颜色为红、绿、蓝中的一种。
  18. 如权利要求11所述的液晶显示面板，其中，所述第一子像素和所述第二子像素为8畴结构。
  19. 如权利要求18所述的液晶显示面板，其中，所述第一主区电极、所述第一次区电极、所述第二主区电极和所述第二次区电极均为4畴结构。
  20. 如权利要求11所述的液晶显示面板，其中，所述所述第一主区电极上的电位大于所述第一次区电极上的电位；所述第二主区电极上的电位大于所述第二次区电极上的电位。
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