WO2016106787A1 - 液晶显示面板及液晶显示装置 - Google Patents

液晶显示面板及液晶显示装置 Download PDF

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Publication number
WO2016106787A1
WO2016106787A1 PCT/CN2015/070153 CN2015070153W WO2016106787A1 WO 2016106787 A1 WO2016106787 A1 WO 2016106787A1 CN 2015070153 W CN2015070153 W CN 2015070153W WO 2016106787 A1 WO2016106787 A1 WO 2016106787A1
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Prior art keywords
liquid crystal
crystal display
columnar
display panel
pixel
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PCT/CN2015/070153
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English (en)
French (fr)
Inventor
唐岳军
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深圳市华星光电技术有限公司
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Publication of WO2016106787A1 publication Critical patent/WO2016106787A1/zh

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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
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • 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
    • 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
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a liquid crystal display panel and a liquid crystal display device.
  • liquid crystal display technology With the development of liquid crystal display technology, a variety of display modes have appeared, among which IPS (In-Plane) Switching, plane conversion) LCD panel and FFS (Fringe Field Switching Technology, Fringe Field Switching) The liquid crystal display panel is popular among users for its high viewing angle.
  • IPS In-Plane
  • plane conversion plane conversion
  • FFS Fringe Field Switching
  • the dark line in the liquid crystal display panel (disclition) Line) will expand with the sliding of the finger (when the liquid crystal display panel is pressed by the finger, the black color is uneven), so that the liquid crystal molecules in the liquid crystal layer will switch to the vertical deflection state, if the liquid crystal molecules cannot be restored to the horizontal deflection in time Status, the LCD panel will produce poor finger pressure (Trace Mura), thereby affecting the display quality of the liquid crystal display panel.
  • An object of the present invention is to provide a liquid crystal display panel and a liquid crystal display device having high fingerless pressure and high display quality, and to solve the technical problems of poor finger pressure and poor display quality of the conventional liquid crystal display panel and liquid crystal display device. .
  • An embodiment of the present invention provides a liquid crystal display panel including a data line, a scan line, and a pixel unit formed by interleaving the data line and the scan line, wherein the pixel unit includes:
  • a plurality of pixel electrodes disposed on the pixel electrode layer for driving forward liquid crystal molecules in the liquid crystal layer for deflection;
  • the pixel electrode layer corresponding to the data line of each of the pixel units, the height of the columnar electrode is less than 0.5 ⁇ m to 2 ⁇ m of the height of the liquid crystal layer;
  • the adjacent columnar electrodes provide a horizontal electric field to the forward liquid crystal molecules to maintain the horizontal deflection state of the forward liquid crystal molecules;
  • the driving voltage on the columnar electrode is eliminated after the driving voltage is supplied to the columnar electrode before the start of display of a picture frame.
  • An embodiment of the present invention provides a liquid crystal display panel including a data line, a scan line, and a pixel unit formed by interleaving the data line and the scan line, wherein the pixel unit includes:
  • a plurality of pixel electrodes disposed on the pixel electrode layer for driving forward liquid crystal molecules in the liquid crystal layer for deflection;
  • the adjacent columnar electrodes provide a horizontal electric field to the forward liquid crystal molecules to maintain the horizontal deflection state of the forward liquid crystal molecules.
  • the columnar electrodes are disposed on both ends of the data line of each of the pixel units and on the corresponding pixel electrode layer in the middle.
  • the columnar electrode is disposed on the pixel electrode layer corresponding to the entire data line of each of the pixel units.
  • the columnar electrode is a conductive metal block, and the polarity of the driving voltage of the columnar electrode corresponding to the adjacent pixel unit is opposite.
  • the columnar electrode includes an insulating columnar body and a metal surface layer, and the metal surface layer covers the columnar body, wherein the metal surface layer corresponding to the adjacent pixel unit The polarity of the drive voltage is reversed.
  • the columnar electrode includes an insulating columnar body, a first metal skin layer, and a second metal skin layer, and the first metal skin layer and the second metal skin layer respectively cover the columnar shape The two sides of the body, wherein the driving voltages of the first metal skin layer and the second metal skin layer are opposite in polarity.
  • the material of the columnar body comprises a resin, silicon nitride or silicon dioxide; and the material of the metal surface layer comprises metallic aluminum and indium tin oxide.
  • the driving voltage on the columnar electrode is eliminated after the driving voltage is supplied to the columnar electrode before the start of display of a picture frame.
  • the columnar electrode is disposed on the pixel electrode layer corresponding to the scan line of each of the pixel units to maintain a horizontal deflection state of the forward liquid crystal molecules.
  • the present invention also provides a liquid crystal display device including a liquid crystal display panel and a backlight, wherein the liquid crystal display panel includes a data line, a scan line, and a pixel unit formed by interleaving the data line and the scan line, wherein
  • the pixel unit includes:
  • a plurality of pixel electrodes disposed on the pixel electrode layer for driving forward liquid crystal molecules in the liquid crystal layer for deflection;
  • the adjacent columnar electrodes provide a horizontal electric field to the forward liquid crystal molecules to maintain the horizontal deflection state of the forward liquid crystal molecules.
  • the columnar electrode is provided on both ends of the data line of each of the pixel units and on the pixel electrode layer corresponding to the middle.
  • the columnar electrode is disposed on the pixel electrode layer corresponding to the entire data line of each of the pixel units.
  • the columnar electrode is a conductive metal block, and the polarity of the driving voltage of the columnar electrode corresponding to the adjacent pixel unit is opposite.
  • the columnar electrode includes an insulating columnar body and a metal surface layer, and the metal surface layer covers the columnar body, wherein the metal surface layer corresponding to the adjacent pixel unit The polarity of the drive voltage is reversed.
  • the columnar electrode includes an insulating columnar body, a first metal skin layer, and a second metal skin layer, and the first metal skin layer and the second metal skin layer respectively cover the columnar shape The two sides of the body, wherein the driving voltages of the first metal skin layer and the second metal skin layer are opposite in polarity.
  • the driving voltage on the columnar electrode is eliminated after the driving voltage is supplied to the columnar electrode before the start of display of a picture frame.
  • the columnar electrode is provided on the pixel electrode layer corresponding to the scanning line of each of the pixel units to maintain a horizontal deflection state of the forward liquid crystal molecules.
  • the liquid crystal display panel and the liquid crystal display device of the present invention can maintain the horizontal deflection state of the positive liquid crystal molecules well by the columnar electrodes, thereby eliminating the poor finger pressure.
  • the display quality of the liquid crystal display panel is improved, and the conventional liquid crystal display panel and the liquid crystal display device have technical problems of poor finger pressure and poor display quality.
  • FIG. 1A is a schematic structural view of a pixel unit of a first preferred embodiment of a liquid crystal display panel of the present invention
  • Figure 1B is a cross-sectional view taken along line A-A' of Figure 1A;
  • FIG. 2A is a schematic structural view of a pixel unit of a second preferred embodiment of a liquid crystal display panel of the present invention.
  • Figure 2B is a cross-sectional view taken along line B-B' of Figure 2A;
  • FIG. 3A is a schematic structural view of a pixel unit of a third preferred embodiment of the liquid crystal display panel of the present invention.
  • Figure 3B is a cross-sectional view taken along line C-C' of Figure 3A;
  • FIG. 4A is a schematic structural view of a pixel unit of a fourth preferred embodiment of the liquid crystal display panel of the present invention.
  • Fig. 4B is a cross-sectional view taken along line D-D' of Fig. 4A.
  • FIG. 1A is a schematic structural view of a pixel unit of a first preferred embodiment of a liquid crystal display panel of the present invention
  • FIG. 1B is a cross-sectional view taken along line A-A' of FIG. 1A.
  • the liquid crystal display panel 10 of the preferred embodiment includes a data line 11, a scan line 12, and a pixel unit 13 which is alternately formed by the data line 11 and the scan line 12.
  • the pixel unit 13 includes a substrate substrate 133, an insulating layer 134, a plurality of pixel electrodes 131, and a columnar electrode 132.
  • the plurality of pixel electrodes 131 are disposed on the pixel electrode layer 14 of the liquid crystal display panel 10 for driving the liquid crystal layer (not shown)
  • the forward liquid crystal molecules in the display are deflected; the columnar electrodes 132 are disposed on the corresponding pixel electrode layer 14 of the entire data line 11 of each pixel unit 13, and the height of the columnar electrodes 132 is smaller than the height of the liquid crystal layer by 0.5 micrometers to 2 micrometers. .
  • the columnar electrode 132 of the liquid crystal display panel 10 of the preferred embodiment is a conductive metal block, and the material of the conductive metal block includes, but is not limited to, a transparent metal such as metal aluminum and indium tin oxide, and the column electrode 132 corresponding to the adjacent pixel unit 13 The polarity of the drive voltage is reversed.
  • the driving chip (not shown) of the liquid crystal display panel 10 inputs a driving voltage to the columnar electrode 132, because the adjacent pixel unit 13 corresponds to
  • the polarity of the driving voltage of the columnar electrode 132 is opposite, such as plus or minus 7 volts, so that the adjacent columnar electrodes 132 provide a horizontal electric field to the positive liquid crystal molecules located therebetween.
  • the user's finger press changes the deflection state of the forward liquid crystal molecules, and the horizontal electric field can restore the positive liquid crystal molecules that change the deflection state to the horizontal deflection state.
  • the driving chip shorts and grounds the positive and negative electrodes of different polarities, thereby eliminating the driving voltage on the columnar electrode 132, and avoiding the influence of the driving voltage on the data signal voltage on the pixel electrode 131. And can protect the data signal voltage from shielding.
  • the liquid crystal display panel of the preferred embodiment can maintain the horizontal deflection state of the positive liquid crystal molecules well through the columnar electrodes, thereby eliminating the poor finger pressure and improving the display quality of the liquid crystal display panel.
  • FIG. 2A is a schematic structural view of a pixel unit of a second preferred embodiment of the liquid crystal display panel of the present invention
  • FIG. 2B is a cross-sectional view taken along line B-B' of FIG. 2A.
  • the columnar electrode 232 of the liquid crystal display panel 20 of the preferred embodiment includes an insulated columnar body 2321 and a metal surface layer 2322, and the metal surface layer 2322 covers the columnar body 2321.
  • the material of the columnar body 2321 includes, but is not limited to, resin, silicon oxide, and silicon dioxide.
  • the material of the metal surface layer 2322 includes, but is not limited to, metal aluminum and transparent metals such as indium tin oxide.
  • the specific working principle of the liquid crystal display panel of the preferred embodiment is the same as or similar to the description in the first preferred embodiment of the liquid crystal display panel. For details, refer to the related description in the first preferred embodiment of the liquid crystal display panel.
  • the liquid crystal display panel of the preferred embodiment uses the insulating columnar body to form the columnar electrode, which further reduces the manufacturing cost of the columnar electrode and the liquid crystal display panel.
  • FIG. 3A is a schematic structural view of a pixel unit of a third preferred embodiment of the liquid crystal display panel of the present invention
  • FIG. 3B is a cross-sectional view taken along line C-C' of FIG. 3A.
  • the columnar electrodes 332 of the pixel unit of the liquid crystal display panel 30 of the present preferred embodiment are disposed on both ends of the data line 11 of each pixel unit 13 and the corresponding pixel electrode layer 14 in the middle.
  • the columnar electrode 332 of the liquid crystal display panel 30 of the preferred embodiment includes an insulating columnar body 3321 and a metal surface layer 3322, and the metal surface layer 3322 covers the columnar body 3321.
  • the material of the columnar body 3321 includes, but is not limited to, resin, silicon oxide, and silicon dioxide.
  • the material of the metal surface layer 3322 includes, but is not limited to, metal aluminum and transparent metal such as indium tin oxide.
  • the specific working principle of the liquid crystal display panel of the preferred embodiment is the same as or similar to the description in the first preferred embodiment of the liquid crystal display panel. For details, refer to the related description in the first preferred embodiment of the liquid crystal display panel.
  • the liquid crystal display panel of the preferred embodiment is provided with a columnar electrode in a region where the dark line problem is most serious, which can better eliminate the finger pressure defect of the liquid crystal display panel, improve the display quality of the liquid crystal display panel, and reduce the columnar electrode and The manufacturing cost of the liquid crystal display panel.
  • FIG. 4A is a schematic structural view of a pixel unit of a fourth preferred embodiment of the liquid crystal display panel of the present invention
  • FIG. 4B is a cross-sectional view taken along line D-D' of FIG. 4A.
  • the columnar electrode 432 of the liquid crystal display panel 40 of the preferred embodiment includes an insulated columnar body 4321, a first metal skin layer 4322, and a second metal skin layer 4323.
  • the first metal skin layer 4322 and the second metal skin layer 4323 respectively cover both sides of the columnar body 4321, wherein the driving voltages of the first metal skin layer 4322 and the second metal skin layer 4323 are opposite in polarity.
  • the material of the columnar body 4321 includes, but is not limited to, resin, silicon oxide, and silicon dioxide.
  • Materials of the first metal skin layer 4322 and the second metal skin layer 4323 include, but are not limited to, metal aluminum and transparent metals such as indium tin oxide.
  • the positive liquid crystal molecules are preferably maintained under the action of a horizontal electric field formed between the second metal surface layer 4323 of the columnar electrode 432 on the left side of the pixel unit 43 and the first metal surface layer 4322 of the columnar electrode 432 on the right side of the pixel unit 43.
  • the horizontal deflection state avoids the occurrence of poor finger pressure.
  • the specific working principle of the liquid crystal display panel of the preferred embodiment is the same as or similar to the description in the first preferred embodiment of the liquid crystal display panel. For details, refer to the related description in the first preferred embodiment of the liquid crystal display panel.
  • the liquid crystal display panel of the preferred embodiment can maintain the horizontal deflection state of the positive liquid crystal molecules well through the columnar electrodes, thereby eliminating the poor finger pressure and improving the display quality of the liquid crystal display panel.
  • the extending direction of the forward liquid crystal molecules is perpendicular to the scanning line
  • the column electrode of the pixel unit of the liquid crystal display panel may also be disposed on the pixel electrode layer corresponding to the scanning line of the pixel unit to maintain The horizontal deflection state of the liquid crystal molecules in the forward direction.
  • the specific working principle of the liquid crystal display panel is the same as or similar to the specific working principle of the liquid crystal display panel described above.
  • the present invention also provides a liquid crystal display device including a backlight and the above liquid crystal display panel.
  • the specific working principle of the liquid crystal display device is the same as or similar to the specific working principle of the preferred embodiment of the liquid crystal display panel described above. For details, please refer to the related description in the preferred embodiment of the above liquid crystal display panel.
  • the liquid crystal display panel and the liquid crystal display device of the invention can maintain the horizontal deflection state of the positive liquid crystal molecules well by the columnar electrodes, thereby effectively eliminating finger pressure defects and improving the display quality of the liquid crystal display panel; and solving the existing
  • the liquid crystal display panel and the liquid crystal display device have technical problems of poor finger pressure and poor display quality.

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

Abstract

一种液晶显示面板（10，20，30，40），液晶显示面板（10，20，30，40）包括数据线（11）、扫描线（12）以及像素单元（13），像素单元（13）包括多个像素电极（131）以及柱状电极（132，232，332，432），其中当一画面帧显示完成后或以画面帧显示开始前，相邻的柱状电极（132，232，332，432）对正向液晶分子提供一水平电场，以维持正向液晶分子的水平偏转状态。可较好的消除液晶显示面板（10，20，30，40）的指压不良，提高液晶显示面板（10，20，30，40）的显示品质。

Description

液晶显示面板及液晶显示装置 技术领域
本发明涉及液晶显示领域，特别是涉及一种液晶显示面板及液晶显示装置。
 背景技术
随着液晶显示技术的发展，出现了多种显示模式的显示屏，其中IPS（In-Plane Switching,平面转换）液晶显示面板以及FFS（边缘场开关技术，Fringe Field Switching）液晶显示面板以其较高的观看视角受到广大用户的喜爱。
但是当用户用手指在IPS液晶显示面板或FFS液晶显示面板上进行滑动按压操作时，液晶显示面板中的暗线（disclition line）会随着手指的滑动扩大（当液晶显示面板受到手指按压时产生的黑色颜色不均），这样液晶层中的液晶分子会转换到垂直偏转状态，如果不能及时让液晶分子恢复到水平偏转状态，液晶显示面板就会产生指压不良（Trace mura），从而影响液晶显示面板的显示品质。
故，有必要提供一种液晶显示面板及液晶显示装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种无指压不良以及显示品质较高的液晶显示面板及液晶显示装置；以解决现有的液晶显示面板及液晶显示装置具有指压不良以及显示品质较差的技术问题。
 技术解决方案
本发明实施例提供一种液晶显示面板，其包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层，所述柱状电极的高度小于液晶层的高度0.5微米至2微米；
其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态；
其中在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
本发明实施例提供一种液晶显示面板，其包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层；
其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态。
在本发明所述的液晶显示面板中，所述柱状电极设置在每个所述像素单元的所述数据线的两端和中间对应的所述像素电极层上。
在本发明所述的液晶显示面板中，所述柱状电极设置在每个所述像素单元的整个所述数据线对应的所述像素电极层上。
在本发明所述的液晶显示面板中，所述柱状电极为导电金属块，其中相邻的所述像素单元对应的所述柱状电极的驱动电压的极性相反。
在本发明所述的液晶显示面板中，所述柱状电极包括绝缘的柱状本体以及金属表层，所述金属表层覆盖在所述柱状本体上，其中相邻的所述像素单元对应的所述金属表层的驱动电压的极性相反。
在本发明所述的液晶显示面板中，所述柱状电极包括绝缘的柱状本体、第一金属表层以及第二金属表层，所述第一金属表层和所述第二金属表层分别覆盖在所述柱状本体的两侧，其中所述第一金属表层和所述第二金属表层的驱动电压的极性相反。
在本发明所述的液晶显示面板中，所述柱状本体的材料包括树脂、氮化硅或二氧化硅；所述金属表层的材料包括金属铝以及氧化铟锡。
在本发明所述的液晶显示面板中，在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
在本发明所述的液晶显示面板中，所述柱状电极设置在每个所述像素单元的所述扫描线对应的所述像素电极层，以维持所述正向液晶分子的水平偏转状态。
本发明还提供一种液晶显示装置，其包括液晶显示面板及背光源，其中所述液晶显示面板包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层；
其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态。
在本发明所述的液晶显示装置中，所述柱状电极设置在每个所述像素单元的所述数据线的两端和中间对应的所述像素电极层上。
在本发明所述的液晶显示装置中，所述柱状电极设置在每个所述像素单元的整个所述数据线对应的所述像素电极层上。
在本发明所述的液晶显示装置中，所述柱状电极为导电金属块，其中相邻的所述像素单元对应的所述柱状电极的驱动电压的极性相反。
在本发明所述的液晶显示装置中，所述柱状电极包括绝缘的柱状本体以及金属表层，所述金属表层覆盖在所述柱状本体上，其中相邻的所述像素单元对应的所述金属表层的驱动电压的极性相反。
在本发明所述的液晶显示装置中，所述柱状电极包括绝缘的柱状本体、第一金属表层以及第二金属表层，所述第一金属表层和所述第二金属表层分别覆盖在所述柱状本体的两侧，其中所述第一金属表层和所述第二金属表层的驱动电压的极性相反。
在本发明所述的液晶显示装置中，在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
在本发明所述的液晶显示装置中，所述柱状电极设置在每个所述像素单元的所述扫描线对应的所述像素电极层，以维持所述正向液晶分子的水平偏转状态。
有益效果
相较于现有的液晶显示面板及液晶显示装置，本发明的液晶显示面板及液晶显示装置通过柱状电极可以很好的维持正性液晶分子的水平偏转状态，从而可以很好的消除指压不良，提高液晶显示面板的显示品质；解决了现有的液晶显示面板及液晶显示装置具有指压不良以及显示品质较差的技术问题。
 附图说明
图1A为本发明的液晶显示面板的第一优选实施例的像素单元的结构示意图；
图1B为沿图1A的A-A’截面线的截面图；
图2A为本发明的液晶显示面板的第二优选实施例的像素单元的结构示意图；
图2B为沿图2A的B-B’截面线的截面图；
图3A为本发明的液晶显示面板的第三优选实施例的像素单元的结构示意图；
图3B为沿图3A的C-C’截面线的截面图；
图4A为本发明的液晶显示面板的第四优选实施例的像素单元的结构示意图；
图4B为沿图4A的D-D’截面线的截面图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
请参照图1A和图1B，图1A为本发明的液晶显示面板的第一优选实施例的像素单元的结构示意图；图1B为沿图1A的A-A’截面线的截面图。本优选实施例的液晶显示面板10包括数据线11、扫描线12以及由数据线11和扫描线12交错形成的像素单元13。该像素单元13包括基板衬底133、绝缘层134、多个像素电极131以及柱状电极132，多个像素电极131设置在液晶显示面板10的像素电极层14，用于驱动液晶层（图中未示出）中的正向液晶分子进行偏转；柱状电极132设置在每个像素单元13的整个数据线11对应的像素电极层14上，柱状电极132的高度小于液晶层的高度0.5微米至2微米。
本优选实施例的液晶显示面板10的柱状电极132为导电金属块，该导电金属块的材料包括但不限于金属铝以及氧化铟锡等透明金属，相邻的像素单元13对应的柱状电极132的驱动电压的极性相反。
本优选实施例的液晶显示面板10使用时，当一画面帧显示完成后，液晶显示面板10的驱动芯片（图中未示出）向柱状电极132输入驱动电压，由于相邻像素单元13对应的柱状电极132的驱动电压的极性相反，如正负7伏，因此相邻的柱状电极132对位于它们之间的正向液晶分子提供一水平电场。如在画面帧的显示过程中，用户手指按压改变了正向液晶分子的偏转状态，则该水平电场可将改变偏转状态的正向液晶分子恢复到水平偏转状态。然后在下一画面帧显示开始前，驱动芯片通过将不同极性的正负电极进行短路并接地，从而消除柱状电极132上的驱动电压，避免该驱动电压对像素电极131上的数据信号电压的影响，并可对数据信号电压起到屏蔽保护的作用。
因此本优选实施例的液晶显示面板通过柱状电极可以很好的维持正性液晶分子的水平偏转状态，从而可以很好的消除指压不良，提高液晶显示面板的显示品质。
请参照图2A和图2B，图2A为本发明的液晶显示面板的第二优选实施例的像素单元的结构示意图；图2B为沿图2A的B-B’截面线的截面图。在第一优选实施例的基础上，本优选实施例的液晶显示面板20的柱状电极232包括绝缘的柱状本体2321以及金属表层2322，金属表层2322覆盖在柱状本体2321上。该柱状本体2321的材料包括但不限于树脂、氧化硅以及二氧化硅，该金属表层2322的材料包括但不限于金属铝以及氧化铟锡等透明金属。
本优选实施例的液晶显示面板的具体工作原理与上述的液晶显示面板的第一优选实施例中的描述相同或相似，具体请参见上述液晶显示面板的第一优选实施例中的相关描述。
本优选实施例的液晶显示面板使用绝缘的柱状本体制作柱状电极，进一步降低了柱状电极以及液晶显示面板的制作成本。
请参照图3A和图3B，图3A为本发明的液晶显示面板的第三优选实施例的像素单元的结构示意图；图3B为沿图3A的C-C’截面线的截面图。在第一优选实施例的基础上，本优选实施例的液晶显示面板30的像素单元的柱状电极332设置在每个像素单元13的数据线11的两端和中间对应的像素电极层14上。
本优选实施例的液晶显示面板30的柱状电极332包括绝缘的柱状本体3321以及金属表层3322，金属表层3322覆盖在柱状本体3321上。该柱状本体3321的材料包括但不限于树脂、氧化硅以及二氧化硅，该金属表层3322的材料包括但不限于金属铝以及氧化铟锡等透明金属。
本优选实施例的液晶显示面板的具体工作原理与上述的液晶显示面板的第一优选实施例中的描述相同或相似，具体请参见上述液晶显示面板的第一优选实施例中的相关描述。
本优选实施例的液晶显示面板在暗线问题最严重的区域设置有柱状电极，这样既可较好的消除液晶显示面板的指压不良，提高液晶显示面板的显示品质；同时还可降低柱状电极以及液晶显示面板的制作成本。
请参照图4A和图4B，图4A为本发明的液晶显示面板的第四优选实施例的像素单元的结构示意图；图4B为沿图4A的D-D’截面线的截面图。在第一优选实施例的基础上，本优选实施例的液晶显示面板40的柱状电极432包括绝缘的柱状本体4321、第一金属表层4322以及第二金属表层4323。第一金属表层4322和第二金属表层4323分别覆盖在柱状本体4321的两侧，其中第一金属表层4322和第二金属表层4323的驱动电压的极性相反。该柱状本体4321的材料包括但不限于树脂、氧化硅以及二氧化硅，该第一金属表层4322和第二金属表层4323的材料包括但不限于金属铝以及氧化铟锡等透明金属。
在像素单元43左侧的柱状电极432的第二金属表层4323和像素单元43右侧的柱状电极432的第一金属表层4322之间形成的水平电场作用下，可较好的维持正向液晶分子的水平偏转状态，避免指压不良的发生。
本优选实施例的液晶显示面板的具体工作原理与上述的液晶显示面板的第一优选实施例中的描述相同或相似，具体请参见上述液晶显示面板的第一优选实施例中的相关描述。
因此本优选实施例的液晶显示面板通过柱状电极可以很好的维持正性液晶分子的水平偏转状态，从而可以很好的消除指压不良，提高液晶显示面板的显示品质。
优选的，如在水平偏转状态时，正向液晶分子的延伸方向与扫描线垂直，则液晶显示面板的像素单元的柱状电极也可设置在像素单元的扫描线对应的像素电极层上，以维持正向液晶分子的水平偏转状态。该液晶显示面板的具体工作原理与上述的液晶显示面板的具体工作原理相同或相似。
本发明还提供一种液晶显示装置，该液晶显示装置包括背光源以及上述的液晶显示面板，该液晶显示装置的具体工作原理与上述的液晶显示面板的优选实施例中的具体工作原理相同或相似，具体请参见上述液晶显示面板的优选实施例中的相关描述。
本发明的液晶显示面板及液晶显示装置通过柱状电极可以很好的维持正性液晶分子的水平偏转状态，从而可以很好的消除指压不良，提高液晶显示面板的显示品质；解决了现有的液晶显示面板及液晶显示装置具有指压不良以及显示品质较差的技术问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (19)

  1. 一种液晶显示面板，其包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
    多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
    柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层，所述柱状电极的高度小于液晶层的高度0.5微米至2微米；
    其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态；
    其中在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
  2. 一种液晶显示面板，其包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
    多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
    柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层；
    其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态。
  3. 根据权利要求2所述的液晶显示面板，其中所述柱状电极设置在每个所述像素单元的所述数据线的两端和中间对应的所述像素电极层上。
  4. 根据权利要求2所述的液晶显示面板，其中所述柱状电极设置在每个所述像素单元的整个所述数据线对应的所述像素电极层上。
  5. 根据权利要求2所述的液晶显示面板，其中所述柱状电极为导电金属块，其中相邻的所述像素单元对应的所述柱状电极的驱动电压的极性相反。
  6. 根据权利要求2所述的液晶显示面板，其中所述柱状电极包括绝缘的柱状本体以及金属表层，所述金属表层覆盖在所述柱状本体上，其中相邻的所述像素单元对应的所述金属表层的驱动电压的极性相反。
  7. 根据权利要求2所述的液晶显示面板，其中所述柱状电极包括绝缘的柱状本体、第一金属表层以及第二金属表层，所述第一金属表层和所述第二金属表层分别覆盖在所述柱状本体的两侧，其中所述第一金属表层和所述第二金属表层的驱动电压的极性相反。
  8. 根据权利要求6所述的液晶显示面板，其中所述柱状本体的材料包括树脂、氮化硅或二氧化硅；所述金属表层的材料包括金属铝以及氧化铟锡。
  9. 根据权利要求7所述的液晶显示面板，其中所述柱状本体的材料包括树脂、氮化硅或二氧化硅；所述金属表层的材料包括金属铝以及氧化铟锡。
  10. 根据权利要求2所述的液晶显示面板，其中在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
  11. 根据权利要求2所述的液晶显示面板，其中所述柱状电极设置在每个所述像素单元的所述扫描线对应的所述像素电极层，以维持所述正向液晶分子的水平偏转状态。
  12. 一种液晶显示装置，其包括液晶显示面板及背光源，其中所述液晶显示面板包括数据线、扫描线以及由所述数据线和所述扫描线交错形成的像素单元，其中所述像素单元包括：
    多个像素电极，设置在像素电极层，用于驱动液晶层中的正向液晶分子进行偏转；以及
    柱状电极，设置在每个所述像素单元的所述数据线对应的所述像素电极层；
    其中当一画面帧显示完成后或一画面帧显示开始前，相邻的所述柱状电极对所述正向液晶分子提供一水平电场，以维持所述正向液晶分子的水平偏转状态。
  13. 根据权利要求12所述的液晶显示装置，其中所述柱状电极设置在每个所述像素单元的所述数据线的两端和中间对应的所述像素电极层上。
  14. 根据权利要求12所述的液晶显示装置，其中所述柱状电极设置在每个所述像素单元的整个所述数据线对应的所述像素电极层上。
  15. 根据权利要求12所述的液晶显示装置，其中所述柱状电极为导电金属块，其中相邻的所述像素单元对应的所述柱状电极的驱动电压的极性相反。
  16. 根据权利要求12所述的液晶显示装置，其中所述柱状电极包括绝缘的柱状本体以及金属表层，所述金属表层覆盖在所述柱状本体上，其中相邻的所述像素单元对应的所述金属表层的驱动电压的极性相反。
  17. 根据权利要求12所述的液晶显示装置，其中所述柱状电极包括绝缘的柱状本体、第一金属表层以及第二金属表层，所述第一金属表层和所述第二金属表层分别覆盖在所述柱状本体的两侧，其中所述第一金属表层和所述第二金属表层的驱动电压的极性相反。
  18. 根据权利要求12所述的液晶显示装置，其中在一画面帧显示开始前，在给所述柱状电极提供所述驱动电压后，消除所述柱状电极上的驱动电压。
  19. 根据权利要求12所述的液晶显示装置，其中所述柱状电极设置在每个所述像素单元的所述扫描线对应的所述像素电极层，以维持所述正向液晶分子的水平偏转状态。
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