WO2012167455A1 - 像素单元与液晶显示面板 - Google Patents

像素单元与液晶显示面板 Download PDF

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Publication number
WO2012167455A1
WO2012167455A1 PCT/CN2011/076247 CN2011076247W WO2012167455A1 WO 2012167455 A1 WO2012167455 A1 WO 2012167455A1 CN 2011076247 W CN2011076247 W CN 2011076247W WO 2012167455 A1 WO2012167455 A1 WO 2012167455A1
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Prior art keywords
trunk
degrees
segments
line
predetermined angle
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PCT/CN2011/076247
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English (en)
French (fr)
Inventor
康志聪
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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 US13/264,883 priority Critical patent/US8928844B2/en
Publication of WO2012167455A1 publication Critical patent/WO2012167455A1/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
    • G02F1/1333—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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix

Definitions

  • the present invention relates to a liquid crystal display device, and more particularly to a pixel unit in a display device;
  • the present invention also relates to a display panel, and more particularly to a liquid crystal display panel.
  • a transparent conductive electrode having a cross-shaped pattern is generally used as a trunk, and the strip electrode has an angle of 45 degrees with the trunk, and the cross-shaped trunk is parallel to the first polarization direction and the second polarization direction or Vertically, as shown in FIG. 1, due to the deflection effect of the liquid crystal, a cross-shaped dark area corresponding to the trunk appears in the pixel area, which affects the display effect of the liquid crystal panel.
  • the deflection direction of the liquid crystal is continuously changed, and the intermediate region of the stem of the pixel electrode is different from the electric field generated by the edge region, if the stem of the pixel electrode is too wide or too long, or the voltage applied to the pixel electrode is insufficient.
  • the liquid crystal on the central region of the trunk of the pixel electrode will be insufficiently deflected, thereby causing a distinct dark region in the region corresponding to the trunk, which reduces the transmittance and affects the display effect of the liquid crystal panel.
  • An object of the present invention is to provide a pixel unit in which a region corresponding to a trunk has no obvious dark regions or even dark regions, so as to solve the problem of improving the transmittance of the liquid crystal display panel and improving the display effect of the liquid crystal display panel.
  • An object of the present invention is to provide a pixel unit in which a region corresponding to a trunk has no obvious dark regions or even dark regions, so as to solve the problem of improving the transmittance of the liquid crystal display panel and improving the display effect of the liquid crystal display panel.
  • the present invention provides a pixel unit including: a gate line; a source line; a drain line; an active element electrically connected to the gate line, the source line, and the drain line; An electrode comprising a trunk and a plurality of strip electrodes, wherein the trunk is electrically connected to the drain line, and the trunk has a first predetermined angle with the first polarization axis or the second polarization axis, the trunk Having at least two segments, one end of the strip electrode is connected to the trunk and the strip electrode has a second predetermined angle with the trunk; the first predetermined angle ranges from 5 a degree of 85 degrees, the second predetermined angle ranges from 5 degrees to 175 degrees; the trunk has at least two segments in the first direction, and one end of the segment has protrusions or depressions Said first direction is parallel to a line in which one segment of said trunk is located; or said trunk has at least two segments in a second direction, said two segments intersecting and having between said two segments a slit
  • the first predetermined angle is 45 degrees.
  • the second predetermined angle is 90 degrees.
  • Another object of the present invention is to provide a pixel unit in which the area corresponding to the trunk has no obvious dark areas or even dark areas, so as to solve the problem of improving the transmittance of the liquid crystal display panel and improving the display effect of the liquid crystal display panel.
  • the present invention provides a pixel unit including: a gate line; a source line; a drain line; an active element electrically connected to the gate line, the source line, and the drain line; An electrode comprising a trunk and a plurality of strip electrodes, wherein the trunk is electrically connected to the drain line, and the trunk has a first predetermined angle with the first polarization axis or the second polarization axis, the trunk There are at least two segments, one end of the strip electrode is connected to the trunk and the strip electrode has a second predetermined angle with the trunk.
  • the first predetermined angle ranges from 5 degrees to 85 degrees, and the second predetermined angle ranges from 5 degrees to 175 degrees.
  • the trunk has at least two segments in a first direction, the first direction being parallel to a line in which one segment of the trunk is located; or the trunk is in a second direction There are at least two segments, the second direction being perpendicular to the line in which one segment of the backbone is located.
  • the trunk has at least two segments in the first direction, one end of the segment has a protrusion or a recess.
  • the trunk has at least two segments in the second direction, the two segments intersect and a slit is formed between the two segments.
  • Another object of the present invention is to provide a liquid crystal display panel in which the corresponding area of the trunk has no obvious dark areas or even dark areas, so as to solve the problem of improving the transmittance of the liquid crystal display panel and improving the display effect of the liquid crystal display panel.
  • the present invention provides a liquid crystal display panel comprising: a first substrate on which a plurality of pixel units are disposed; a second substrate on which a common electrode and a color filter are disposed, the common electrode Opposite the pixel electrode on the first substrate, the color filter is disposed between the second substrate and the common electrode; and a liquid crystal layer disposed on the pixel of the first substrate Between the electrode and the common electrode of the second substrate; the pixel unit specifically includes: a gate line; a source line; a drain line; an active element, and a gate line, a source line, and a drain a wire electrode, comprising a trunk and a plurality of strip electrodes, wherein the trunk is electrically connected to the drain line, and the trunk has a first predetermined order with the first polarization axis or the second polarization axis An angle, the trunk having at least two segments, one end of the strip electrode being connected to the trunk and the strip electrode having a second predetermined angle with the trunk
  • the first predetermined angle ranges from 5 degrees to 85 degrees
  • the second predetermined angle ranges from 5 degrees to 175 degrees.
  • the trunk has at least two segments in a first direction, the first direction being parallel to a line in which one segment of the trunk is located; or the trunk is in a second direction There are at least two segments on the top, and the second direction is perpendicular to a line in which one segment of the trunk is located.
  • protrusions or grooves are provided on the common electrode at positions corresponding to the slits between the two segments.
  • the protrusion or the groove has at least two side faces which form an angle of 135 degrees and/or 45 degrees with the plane in which the common electrode is located.
  • the invention eliminates the dark area in the area corresponding to the trunk, improves the penetration rate, and improves the display effect of the liquid crystal display panel.
  • the invention eliminates the dark area in the area corresponding to the trunk, improves the penetration rate, and improves the display effect of the liquid crystal display panel.
  • FIG. 1 is a top plan view of a pixel unit of a liquid crystal display panel in the prior art
  • FIG. 2 is a top plan view of a first preferred embodiment of a pixel unit of the present invention
  • FIG. 3 is a top plan view of a second preferred embodiment of a pixel unit of the present invention.
  • FIG. 4 is a top plan view of a third preferred embodiment of a pixel unit of the present invention.
  • Figure 5 is a plan view showing a fourth preferred embodiment of the pixel unit of the present invention.
  • Figure 6 is a plan view showing a first preferred embodiment of the liquid crystal display panel of the present invention.
  • Figure 7 is a schematic view of a preferred embodiment of the A-A' section of Figure 6;
  • Figure 8 is a schematic view of another preferred embodiment of the A-A' section of Figure 6.
  • FIG. 2 is a top plan view of a first preferred embodiment of a pixel unit of the present invention.
  • the pixel unit of the present invention includes an active element 2, a source line 4, a gate line 1, a drain line 3, and a pixel electrode 6, wherein the pixel electrode 6 includes a stem 8 and a plurality of strip electrodes 5,
  • the active component 2 is electrically connected to the source line 4 and the gate line 1.
  • the active component 2 is also electrically connected to the drain line 3.
  • the drain line 3 and the trunk 8 are electrically connected through the contact hole 7, and the trunk 8 is connected.
  • the first polarization axis has a first predetermined angle, the angle ranges from 5 degrees to 85 degrees, preferably, the first predetermined angle is selected to be 45 degrees, the strip electrode 5 is connected to the trunk 8, and the strip electrode 5 has a second predetermined angle with the trunk 8, the second predetermined angle ranging from 5 degrees to 175 degrees, preferably the second predetermined angle is selected to be 90 degrees.
  • the trunk 8 is divided into three segments in the first direction: a first segment 9, a second segment 10, and a third segment 11.
  • the first segment 9, the first segment The two segments 10 and the third segment 11 are collinear.
  • the first segment 9, the second segment 10 and the third segment 11 may not be collinear or even parallel.
  • the drain line 3 is electrically connected to the first section 9, the second section 10, and the third section 11 of the trunk 8 through the contact hole 7.
  • the advantage of segmenting the trunk 8 in the first direction is to prevent the trunk 8 from being too long in the first direction to form a dark region corresponding to the trunk 8, thereby improving the transmittance of the liquid crystal panel.
  • FIG. 3 is a top plan view of a second preferred embodiment of a pixel unit of the present invention. This embodiment is similar to the first preferred embodiment.
  • the trunk 8 is divided into three segments in the first direction, and the first segment 9 is provided with a protrusion 12 near the end of the second segment 10, and the first segment 9 is The other end is provided with a recess 13 , and the second section 10 is provided with a recess 13 near one end of the first section 9 , and a section of the second section 10 near the third section 11 is provided with a protrusion 12 , the third section 11 The other end is provided with a protrusion 12.
  • the drain line 3 is electrically connected to the first section 9, the second section 10 and the third section 11 of the trunk 8 through the contact hole 7.
  • FIG. 4 is a top plan view of a third preferred embodiment of a pixel unit of the present invention.
  • the pixel unit includes a source line 4, a gate line 1, an active element 2, a drain line 3, and a pixel electrode 6, wherein the pixel electrode 6 includes a stem 8 and a plurality of strip electrodes 5.
  • the trunk 8 is divided into two segments in the second direction: a fourth segment 14 and a fifth segment 15.
  • One end of the strip electrode 5 is electrically connected to the fourth segment 14 or the fifth segment 15 , and the strip electrode 5 and the segment of the trunk 8 have a second predetermined angle, and the value of the second predetermined angle is The range is from 5 degrees to 175 degrees.
  • the second predetermined angle is selected to be 90 degrees.
  • the trunk 8 has a first predetermined angle with the first polarization axis, and the first predetermined angle ranges from 5 degrees to 85 degrees, preferably, the first predetermined angle is selected to be 45 degrees.
  • the drain line 3 is connected to the fourth section 14 and the fifth section 15 of the trunk 8 through the contact hole 7.
  • the fourth segment 14 and the fifth segment 15 intersect, and there is a slit between the fourth segment 14 and the fifth segment 15.
  • the trunk 8 since the trunk 8 is divided into the fourth segment 14 and the fifth segment 15, the trunk 8 is prevented from being too wide in the second direction to form a dark region, which improves the transmittance of the liquid crystal panel.
  • protrusions 26 or grooves 25 may be provided on the common electrode 21 at positions corresponding to the slits between the fourth segment 14 and the fifth segment 15, as shown in FIGS. 6 and 7. Or Figure 6 and Figure 8.
  • FIG. 5 is a top plan view of a fourth preferred embodiment of a pixel unit of the present invention.
  • the pixel unit of the present invention includes a source line 4, a gate line 1, a drain line 3, an active element 2, and a pixel electrode 6.
  • the active device 2 is electrically connected to the source line 4, the gate line 1 and the drain line 3, and the drain line 3 is electrically connected to the pixel electrode 6.
  • the pixel electrode 6 includes a trunk 8 and a plurality of strip electrodes 5, the trunk 8 having a first predetermined angle with the first polarization axis, the first predetermined angle ranging from 5 degrees to 85 degrees, preferably The first predetermined angle is selected to be 45 degrees.
  • the strip electrode 5 has a second predetermined angle with the trunk 8, and the second predetermined angle ranges from 5 degrees to 175 degrees, preferably, the second predetermined The angle is 90 degrees.
  • the trunk has a segmentation specific in both the first direction and the second direction
  • the trunk 8 has a sixth segment 16 and a plurality of seventh segments 17, a sixth segment 16 and a seventh segment
  • the segments 17 intersect, with a slit between the sixth segment 16 and the seventh segment 17, and the seventh segments 17 are arranged in a linear array on the sixth segment 16.
  • the drain line 3 is electrically connected to the sixth segment 16 of the trunk 8 through the contact hole 7, and the sixth segment 16 is connected to the plurality of seventh segments 17.
  • dividing the trunk 8 into a sixth segment 16 and a plurality of seventh segments 17 is advantageous for avoiding the dark region formed by the trunk 8 due to being too long in the first direction and too wide in the second direction.
  • the protrusions 26 or the grooves 25 may be provided at positions corresponding to the slits between the common electrode 21 and the sixth segment 16 and the seventh segment 17. See Figure 6 and Figure 7 or Figure 6 and Figure 8.
  • FIG. 6 is a plan view of a first preferred embodiment of the liquid crystal display panel of the present invention
  • FIG. 7 is a schematic view of a preferred embodiment of the A-A' cross section of FIG.
  • the first substrate 24 is provided with a plurality of pixel units, wherein the pixel unit comprises a gate line 1, a source line 4, a drain line 3, an active element 5 and a pixel electrode 6, in particular
  • the first substrate 24 is respectively provided with an insulating layer 23 and pixel electrodes 6 (the first segment 9 and the second segment 10), and in the opposite direction of the third direction, the second substrate 19 is respectively disposed.
  • the color filter 20 and the common electrode 21 are disposed, the first substrate 24 and the second substrate 19 are disposed in parallel, and the second substrate 19 is disposed above the first substrate 24 in the third direction, between the pixel electrode 6 and the common electrode 21.
  • a liquid crystal layer 22 is provided.
  • the active device 2 is electrically connected to the source line 4, the gate line 1 and the drain line 3, and the drain line 3 is electrically connected to the pixel electrode 6 through the contact hole 7.
  • the pixel electrode 6 includes a trunk 8 and a plurality of strip electrodes 5.
  • the trunk 8 has a first predetermined angle with the first polarization axis, and the first predetermined angle ranges from 5 degrees to 85 degrees.
  • the strip electrode 5 is connected to the trunk 8, and the strip electrode 5 has a second predetermined angle with the trunk 8, and the second predetermined angle ranges from 5 degrees to 175 degrees.
  • the second predetermined clip The angle is chosen to be 90 degrees.
  • the trunk 8 is divided into three segments in the first direction: a first segment 9, a second segment 10 and a third segment 11. There is a slit between the first segment 9 and the second segment 10, between the second segment 10 and the third segment 11, and a protrusion 26 is formed on the common electrode 21 at a position 18 corresponding to the slit.
  • the protrusion 26 is a hemisphere.
  • the protrusion 26 may have other shapes.
  • the side surface of the protrusion 26 includes at least two planes respectively 45 degrees with the plane of the common electrode 21. / or 135 degrees angled face.
  • the protrusion 26 is provided at the position 18 corresponding to the slit between the common electrode 21 and the first segment 9 and the second segment 10, the second segment 10, and the third segment 11,
  • the voltage to be applied to the pixel electrode 6 in this embodiment is smaller than the voltage to be applied when the protrusion 26 is not provided.
  • Figure 8 is a schematic view of another preferred embodiment of the A-A' section of Figure 6.
  • the first substrate 24, the insulating layer 23, the pixel electrode 6 (the first segment 9 and the second segment 10), the liquid crystal layer 22, the common electrode 21, the color filter 20, and the second substrate 19 are along the first The three directions are set in order.
  • the common electrode 21 is provided with a groove 25 whose opening direction is In the opposite direction of the third direction, preferably, the cross-sectional shape of the groove 25 is an isosceles trapezoid, and the two waists of the isosceles trapezoid form an angle of 135 degrees with the plane of the common electrode 21, that is, the groove is at least There are two sides that form an angle of 135 degrees and/or 45 degrees with the plane in which the common electrode 21 is located. This has the advantage of causing the pixel electrode 6 to generate an electric field that is most favorable for the liquid crystal molecules 22 to fall, while applying a minimum voltage to the pixel electrode 6.

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  • Mathematical Physics (AREA)
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Abstract

提供了一种像素单元，包括：栅极线（1）；源极线（4）；漏极线（3）；有源元件（2），其与栅极线（1）、源极线（4）和漏极线（3）电性连接；像素电极（6），其包括一个主干（8）和多个条状电极（5）。所述主干（8）与所述漏极线（3）电性连接。所述主干（8）与第一偏光轴（P1）或第二偏光轴（P2）具有一第一预定夹角。所述主干（8）至少具有两个分段（9，10，11）。所述条状电极（5）的一端与所述主干（8）连接并且所述条状电极（5）与所述主干（8）具有一第二预定夹角。还提供了一种液晶显示面板。

Description

像素单元与液晶显示面板 技术领域
本发明涉及一种液晶显示器件，特别是涉及一种显示器件中的像素单元；
本发明还涉及一种显示面板，特别是涉及一种液晶显示面板。
 背景技术
现有的液晶面板的像素区域中一般采用十字形图案的透明导电电极作为主干，条状电极与主干具有45度的夹角，该十字形的主干与第一偏光方向和第二偏光方向平行或垂直，如图1所示，由于液晶的偏转作用，像素区域会出现一个与主干对应的十字形的暗区，影响了液晶面板的显示效果。
另外，液晶的偏转方向是连续地变化的，像素电极的主干的中间区域跟边缘区域所产生的电场是不一样的，如果像素电极的主干过宽或过长，或者向像素电极施加的电压不足，像素电极的主干的中心区域上的液晶将会偏转不足，从而导致主干对应的区域出现明显的暗区，这降低了穿透率，影响了液晶面板的显示效果。
故，有必要提供一种像素单元和液晶显示面板，以解决现有技术所存在的问题。
 技术问题
本发明的一个目的在于提供一种像素单元，其主干对应的区域没有明显的暗区，甚至没有暗区，以解决提高液晶显示面板的穿透率、改善液晶显示面板的显示效果问题。
技术解决方案
本发明的一个目的在于提供一种像素单元，其主干对应的区域没有明显的暗区，甚至没有暗区，以解决提高液晶显示面板的穿透率、改善液晶显示面板的显示效果问题。
为解决上述问题，本发明提供了一种像素单元，包括：栅极线；源极线；漏极线；有源元件，其与栅极线、源极线和漏极线电性连接；像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角；所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度；所述主干在第一方向上至少具有两个分段，所述分段的一端具有突起或凹陷，所述第一方向与所述主干的一个分段所在的直线平行；或者所述主干在第二方向上至少具有两个分段，所述两个分段相交并且所述两个分段之间具有一狭缝，所述第二方向与所述主干的一个分段所在的直线垂直。
在本发明的像素单元中，所述第一预定夹角为45度。
在本发明的像素单元中，所述第二预定夹角为90度。
本发明的另一个目的在于提供一种像素单元，其主干对应的区域没有明显的暗区，甚至没有暗区，以解决提高液晶显示面板的穿透率、改善液晶显示面板的显示效果问题。
为解决上述问题，本发明提供了一种像素单元，包括：栅极线；源极线；漏极线；有源元件，其与栅极线、源极线和漏极线电性连接；像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角。
在本发明的像素单元中，所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度。
在本发明的像素单元中，所述主干在第一方向上至少具有两个分段，所述第一方向与所述主干的一个分段所在的直线平行；或者所述主干在第二方向上至少具有两个分段，所述第二方向与所述主干的一个分段所在的直线垂直。
在上述的像素单元中，若所述主干在所述第一方向上至少具有两个分段，所述分段的一端具有突起或凹陷。
在上述的像素单元中，若所述主干在所述第二方向上至少具有两个分段，所述两个分段相交并且所述两个分段之间具有一狭缝。
本发明的另一个目的在于提供一种液晶显示面板，其主干对应的区域没有明显的暗区，甚至没有暗区，以解决提高液晶显示面板的穿透率、改善液晶显示面板的显示效果问题。
为解决上述问题，本发明提供了一种液晶显示面板，包括：第一基板，其上设有多个像素单元；第二基板，其上设有公共电极和彩色滤光片，所述公共电极与所述第一基板上的所述像素电极相向，所述彩色滤光片设置于所述第二基板和所述公共电极之间；液晶层，其设置于所述第一基板的所述像素电极和所述第二基板的所述公共电极之间；所述像素单元具体包括：栅极线；源极线；漏极线；有源元件，其与栅极线、源极线和漏极线电性连接；像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角。
在本发明的液晶显示面板中，所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度。
在本发明的液晶显示面板中，所述主干在第一方向上至少具有两个分段，所述第一方向与所述主干的一个分段所在的直线平行；或者所述主干在第二方向上至少具有两个分段，所述第二方向与所述主干的一个分段所在的直线垂直。
在本发明的液晶显示面板中，所述公共电极上与所述两个分段之间的狭缝对应的位置上设有突起或凹槽。
在本发明的液晶显示面板中，所述突起或凹槽至少具有两个与所述公共电极所在的平面形成135度和/或45度夹角的侧面。
本发明相对于现有技术，消除了主干对应的区域中的暗区，提高了穿透率，改善了液晶显示面板的显示效果
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并配合所附图式，作详细说明如下：
 有益效果
本发明相对于现有技术，消除了主干对应的区域中的暗区，提高了穿透率，改善了液晶显示面板的显示效果
附图说明
图1为现有技术中液晶显示面板的像素单元的俯视图；
图2为本发明的像素单元的第一较佳实施例的俯视图；
图3为本发明的像素单元的第二较佳实施方式的俯视图；
图4为本发明的像素单元的第三较佳实施方式的俯视图；
图5为本发明的像素单元的第四较佳实施方式的俯视图；
图6为本发明的液晶显示面板的第一较佳实施例的俯视图；
图7为图6中A-A’截面的一种较佳实施方式示意图；
图8为图6中A-A’截面的另一种较佳实施方式示意图。
 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。
参考图2，图2为本发明的像素单元的第一较佳实施例的俯视图。图2中，本发明的像素单元包括有源元件2、源极线4、栅极线1、漏极线3和像素电极6，其中像素电极6包括一个主干8和多个条状电极5，有源元件2与源极线4和栅极线1电性连接，有源元件2还与漏极线3电性连接，漏极线3与主干8通过接触孔7电性连接，主干8与第一偏光轴具有第一预定夹角，该夹角的取值范围为5度至85度，优选地，第一预定夹角选择45度，条状电极5与主干8连接，并且条状电极5与主干8具有第二预定夹角，该第二预定夹角的取值范围为5度至175度，优选地，第二预定夹角选择90度。在本实施例中，主干8在第一方向上分成三个分段：第一分段9、第二分段10和第三分段11，在本实施例中，第一分段9、第二分段10和第三分段11共线，当然，第一分段9、第二分段10和第三分段11可以不共线，甚至不平行。漏极线3通过接触孔7与主干8的第一分段9、第二分段10、第三分段11电性连接。在本实施例中，将主干8在第一方向上分段的好处是避免主干8在第一方向上过长而形成一个跟主干8对应的暗区，从而提升了液晶面板的穿透率。
参考图3，图3为本发明的像素单元的第二较佳实施方式的俯视图。本实施例与第一较佳实施例类似，主干8在第一方向上分成三个分段，第一分段9靠近第二分段10的一端设有突出物12，第一分段9的另一端设有凹陷13，第二分段10靠近第一分段9的一端设有凹陷13，第二分段10靠近第三分段11的一段设有突出物12，第三分段11的另一端设有突出物12。漏极线3通过接触孔7与主干8的第一分段9、第二分段10和第三分段11电性连接。在第一分段9和第二分段9的一端分别设置突出物12和凹陷13的好处是增加像素电极所产生的电场对液晶分子的倾倒的贡献。
参考图4，图4为本发明的像素单元的第三较佳实施方式的俯视图。在本实施例中，像素单元包括源极线4、栅极线1、有源元件2、漏极线3和像素电极6，其中像素电极6包括一个主干8和多个条状电极5。主干8在第二方向上分成两个分段：第四分段14和第五分段15。条状电极5的一端与第四分段14或第五分段15电性连接，条状电极5与主干8的一个分段具有一第二预定夹角，该第二预定夹角的取值范围为5度至175度，优选地，该第二预定夹角选择90度，主干8与第一偏光轴具有一第一预定夹角，该第一预定夹角的取值范围为5度至85度，优选地，该第一预定夹角选择45度。漏极线3通过接触孔7与主干8的第四分段14、第五分段15连接。第四分段14和第五分段15相交，并且第四分段14和第五分段15之间具有一狭缝。在本实施例中，由于将主干8分成了第四分段14和第五分段15，避免了主干8在第二方向上过宽而形成一个暗区，提升了液晶面板的穿透率。在本发明的液晶显示面板中，可以在公共电极21上与第四分段14和第五分段15之间的狭缝对应的位置上设置突起26或凹槽25，如图6和图7或图6和图8所示。
参考图5，图5为本发明的像素单元的第四较佳实施方式的俯视图。在图5中，本发明的像素单元包括源极线4、栅极线1、漏极线3、有源元件2和像素电极6。有源元件2与源极线4、栅极线1以及漏极线3电性连接，漏极线3电性连接像素电极6。像素电极6包括一个主干8和多个条状电极5，主干8与第一偏光轴具有第一预定夹角，该第一预定夹角的取值范围为5度至85度，优选地，该第一预定夹角选择45度。条状电极5的一端与主干8连接，条状电极5与主干8具有一第二预定夹角，该第二预定夹角的取值范围为5度至175度，优选地，该第二预定夹角为90度。在本实施例中，主干在第一方向和第二方向上均具有分段具体地，主干8具有一个第六分段16和多个第七分段17，第六分段16和第七分段17相交，第六分段16和第七分段17之间具有狭缝，第七分段17以线性阵列的形式排列在第六分段16上。漏极线3通过接触孔7与主干8的第六分段16电性连接，第六分段16与多个第七分段17连接。在本实施例中，将主干8分成一个第六分段16和多个第七分段17有利于避免主干8由于在第一方向过长和第二方向上过宽而形成的暗区，提升了液晶面板的穿透率。在本发明的液晶显示面板中，可以在公共电极21与第六分段16和第七分段17之间的狭缝对应的位置上设置突起26或凹槽25。如图6和图7或图6和图8所示。
参考图6和图7，图6为本发明的液晶显示面板的第一较佳实施例的俯视图，图7为图6中A-A’截面的一种较佳实施方式示意图。本发明的液晶显示面板中，第一基板24上设有多个像素单元，其中像素单元包括栅极线1、源极线4、漏极线3、有源元件5和像素电极6，具体地，在第三方向上，第一基板24上分别设有绝缘层23和像素电极6（第一分段9和第二分段10），在第三方向的反方向上，第二基板19上分别设有彩色滤光片20和公共电极21，第一基板24和第二基板19平行设置，并且第二基板19沿第三方向设置在第一基板24的上方，像素电极6和公共电极21之间设有液晶层22。有源元件2电性连接源极线4、栅极线1和漏极线3，漏极线3通过接触孔7电性连接像素电极6。像素电极6包括一个主干8和多个条状电极5。主干8与第一偏光轴具有一第一预定夹角，该第一预定夹角的取值范围为5度至85度。条状电极5的一端与主干8连接，条状电极5与主干8具有第二预定夹角，该第二预定夹角的取值范围为5度至175度，优选地，该第二预定夹角选择90度。主干8在第一方向上分成3个分段：第一分段9、第二分段10和第三分段11。第一分段9和第二分段10之间、第二分段10和第三分段11之间具有狭缝，公共电极21上与该狭缝对应的位置18上具有一突起26，具体地，在本实施例中，该突起26是一个半球体，当然，该突起26也可以是其它形状，如该突起26的侧面中至少包括两个分别与公共电极21所在的平面具有45度和/或135度夹角的面。在本实施例中，由于在公共电极21与第一分段9和第二分段10、第二分段10和第三分段11之间的狭缝对应的位置18上设置突起26，在获得同样的液晶倾倒的效果的前提下，本实施例对像素电极6所需施加的电压与不设置突起26时所需施加的电压相比要小。
参考图8，图8为图6中A-A’截面的另一种较佳实施方式示意图。图8中，第一基板24、绝缘层23、像素电极6（第一分段9和第二分段10）、液晶层22、公共电极21、彩色滤光片20和第二基板19沿第三方向依次设置。主干8的第一分段9和第二分段10之间具有一狭缝，在与该狭缝的对应的位置18上，公共电极21设有凹槽25，该凹槽25的开口方向朝第三方向的反方向，优选地，该凹槽25的截面形状是一个等腰梯形，并且该等腰梯形的两条腰与公共电极21所在的平面形成135度的夹角，即凹槽至少具有两个与公共电极21所在的平面形成135度和/或45度夹角的侧面。这样做的好处是在向像素电极6施加最小的电压的情况下使像素电极6产生最有利于液晶分子22倾倒的电场。
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。
 本发明的实施方式
工业实用性
序列表自由内容

Claims (13)

  1. 一种像素单元，其特征在于，包括：
    栅极线；
    源极线；
    漏极线；
    有源元件，其与栅极线、源极线和漏极线电性连接；
    像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角；
    所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度；
    所述主干在第一方向上至少具有两个分段，所述分段的一端具有突起或凹陷，所述第一方向与所述主干的一个分段所在的直线平行；或者
    所述主干在第二方向上至少具有两个分段，所述两个分段相交并且所述两个分段之间具有一狭缝，所述第二方向与所述主干的一个分段所在的直线垂直。
  2. 根据权利要求1所述的像素单元，其特征在于，所述第一预定夹角为45度。
  3. 根据权利要求1所述的像素单元，其特征在于，所述第二预定夹角为90度。
  4. 一种像素单元，其特征在于，包括：
    栅极线；
    源极线；
    漏极线；
    有源元件，其与栅极线、源极线和漏极线电性连接；
    像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角。
  5. 根据权利要求4所述的像素单元，其特征在于，所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度。
  6. 根据权利要求4所述的像素单元，其特征在于，所述主干在第一方向上至少具有两个分段，所述第一方向与所述主干的一个分段所在的直线平行；或者
    所述主干在第二方向上至少具有两个分段，所述第二方向与所述主干的一个分段所在的直线垂直。
  7. 根据权利要求6所述的像素单元，其特征在于，若所述主干在所述第一方向上至少具有两个分段，所述分段的一端具有突起或凹陷。
  8. 根据权利要求6所述的像素单元，其特征在于，若所述主干在所述第二方向上至少具有两个分段，所述两个分段相交并且所述两个分段之间具有一狭缝。
  9. 一种液晶显示面板，其特征在于，包括：
    第一基板，其上设有多个像素单元；
    第二基板，其上设有公共电极和彩色滤光片，所述公共电极与所述第一基板上的所述像素电极相向，所述彩色滤光片设置于所述第二基板和所述公共电极之间；
    液晶层，其设置于所述第一基板的所述像素电极和所述第二基板的所述公共电极之间；
    所述像素单元具体包括：
    栅极线；
    源极线；
    漏极线；
    有源元件，其与栅极线、源极线和漏极线电性连接；
    像素电极，其包括一个主干和多个条状电极，所述主干与所述漏极线电性连接，所述主干与第一偏光轴或第二偏光轴具有一第一预定夹角，所述主干至少具有两个分段，所述条状电极的一端与所述主干连接并且所述条状电极与所述主干具有一第二预定夹角。
  10. 根据权利要求9所述的液晶显示面板，其特征在于，所述第一预定夹角的取值范围为5度至85度，所述第二预定夹角的取值范围为5度至175度。
  11. 根据权利要求9所述的液晶显示面板，其特征在于，所述主干在第一方向上至少具有两个分段，所述第一方向与所述主干的一个分段所在的直线平行；或者
    所述主干在第二方向上至少具有两个分段，所述第二方向与所述主干的一个分段所在的直线垂直。
  12. 根据权利要求11所述的液晶显示面板，其特征在于，所述公共电极上与所述两个分段之间的狭缝对应的位置上设有突起或凹槽。
  13. 根据权利要求12所述的液晶显示面板，其特征在于，所述突起或凹槽至少具有两个与所述公共电极所在的平面形成135度和/或45度夹角的侧面。
PCT/CN2011/076247 2011-06-09 2011-06-24 像素单元与液晶显示面板 Ceased WO2012167455A1 (zh)

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