WO2013181814A1 - 阵列基板及液晶显示装置 - Google Patents

阵列基板及液晶显示装置 Download PDF

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WO2013181814A1
WO2013181814A1 PCT/CN2012/076551 CN2012076551W WO2013181814A1 WO 2013181814 A1 WO2013181814 A1 WO 2013181814A1 CN 2012076551 W CN2012076551 W CN 2012076551W WO 2013181814 A1 WO2013181814 A1 WO 2013181814A1
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Prior art keywords
electrode
region
common electrode
opening
liquid crystal
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PCT/CN2012/076551
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English (en)
French (fr)
Inventor
贾沛
杨流洋
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深圳市华星光电技术有限公司
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Priority to US13/522,968 priority Critical patent/US9116398B2/en
Publication of WO2013181814A1 publication Critical patent/WO2013181814A1/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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13373—Disclination line; Reverse tilt
    • 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
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to an array substrate and a liquid crystal display device.
  • a conventional liquid crystal display device is provided with a plurality of pixel electrodes on an array substrate for generating an electric field to apply a force to the liquid crystal molecules to change the deflection of the liquid crystal molecules.
  • the pixel electrode is provided with at least two main electrodes and a plurality of strip electrodes, the two main electrodes are perpendicular to each other, and the strip electrodes are disposed at an angle to the main electrode.
  • the strip electrodes on the pixel electrodes are energized, the density of the charges distributed in the edge regions of the pixel electrodes is significantly different from the density of the charges distributed in the central portion of the pixel electrodes, that is, distributed on the strip electrodes away from the two trunks.
  • the density of the charge at one end of the electrode is greater than the density of the charge distributed in other portions of the strip electrode, resulting in the magnitude and direction of the force generated by the edge region of the pixel electrode on the liquid crystal molecules and the force acting on the liquid crystal molecules in the central portion of the pixel electrode.
  • the size and direction are different. Therefore, in the edge region of the pixel electrode, liquid crystal molecules may be disordered in arrangement, which reduces the display effect of the liquid crystal display device.
  • An object of the present invention is to provide a liquid crystal display device capable of preventing liquid crystal molecules from being eccentrically disordered in an edge region of a pixel electrode and reducing the display effect of the liquid crystal display device.
  • Another object of the present invention is to provide an array substrate which can prevent liquid crystal molecules from being deflected in the edge region of the pixel electrode and reduce the display effect of the liquid crystal display device.
  • the present invention provides a liquid crystal display device comprising: a backlight, an array substrate, and a color filter substrate; the array substrate includes: a thin film transistor, a data line, and a gate line; wherein the array substrate further includes: a pixel An electrode, the pixel electrode includes at least one strip electrode and at least one main electrode; a common electrode, wherein the common electrode defines a first region, where the first region is a plane of the pixel electrode at the common electrode Projection; and a second region, the second region being adjacent to at least one side of the first region, the second region being around the first region; the common electrode being at the second The area is provided with at least one opening at a position on the second area near the edge of the pixel electrode; the depth of the opening is less than or equal to the thickness of the common electrode.
  • the center of the opening is collinear with the projection of a strip electrode on a plane in which the common electrode is located.
  • the opening is provided on a side of the common electrode facing the pixel electrode.
  • the opening is provided on a side of the common electrode facing away from the pixel electrode.
  • the first region is a projection of a peripheral contour of the pixel electrode on a plane of the common electrode, and the peripheral contour is an end point of an end of the strip electrode away from the trunk electrode The shape of the connection.
  • Another object of the present invention is to provide an array substrate which can prevent liquid crystal molecules from being deflected in the edge region of the pixel electrode and reduce the display effect of the liquid crystal display device.
  • the present invention provides an array substrate, including a thin film transistor, a data line, a gate line, and a pixel electrode.
  • the pixel electrode includes at least one strip electrode and at least one stem electrode
  • the array substrate further includes: a common electrode, the common electrode is defined with: a first area, the first area is a projection of the pixel electrode on a plane of the common electrode; and a second area, the second area is close to the At least one side of the first region; the common electrode is provided with at least one opening on the second region.
  • the position of the opening is at an edge close to the pixel electrode on the second region.
  • the second region is located around the first region.
  • the depth of the opening is less than or equal to the thickness of the common electrode.
  • the center of the opening is collinear with the projection of a strip electrode on a plane in which the common electrode is located.
  • Another object of the present invention is to provide a liquid crystal display device which can prevent a liquid crystal molecule from being deflected in a peripheral region of a pixel electrode and which reduces the display effect of the liquid crystal display device.
  • the present invention provides a liquid crystal display device comprising: a backlight, an array substrate, and a color filter substrate; the array substrate includes: a thin film transistor, a data line, and a gate line; and the array substrate further
  • the method includes: a pixel electrode, the pixel electrode includes at least one strip electrode and at least one trunk electrode; a common electrode, wherein the common electrode defines: a first region, wherein the first region is the pixel electrode a projection on a plane of the common electrode; and a second region, the second region being adjacent to at least one side of the first region; the common electrode having at least one opening on the second region.
  • the position of the opening is at an edge close to the pixel electrode on the second region.
  • the second region is located around the first region.
  • the depth of the opening is less than or equal to the thickness of the common electrode.
  • the center of the opening is collinear with the projection of a strip electrode on a plane in which the common electrode is located.
  • the present invention is provided with an opening at the edge of the region near the pixel electrode on the common electrode, and the position of the opening is disposed near the peripheral edge of the pixel electrode, and the opening direction of the opening is disposed on the common electrode facing the pixel electrode
  • the inner wall of the opening collects electric charge, so an electric field is formed between the opening and the end of the strip electrode away from the main electrode, and further, since the opening has a depth, the depth is less than or Equal to the thickness of the common electrode, the opening direction and depth of the opening may be set according to the magnitude and direction of the force applied to the liquid crystal molecules, thereby adjusting the amount of electric charge accumulated on the inner wall of the opening, thereby adjusting the opening and the strip electrode away from the main electrode
  • the electric field between one ends adjusts the alignment of the liquid crystal molecules at the edge of the pixel electrode such that the orientation of the liquid crystal molecules at the edge of the pixel electrode is substantially the same as the orientation of the liquid crystal molecules
  • FIG. 1 is a partial schematic view of an array substrate of the present invention
  • Figure 2 is a partial schematic view showing the first embodiment of the A-A' section of Figure 1;
  • Figure 3 is a partial schematic view of a second embodiment of the A-A' section of Figure 1.
  • FIG. 1 is a partial schematic view of an array substrate of the present invention.
  • the array substrate of the present invention includes a gate line 103, a data line 101, a thin film transistor 102, a pixel electrode 109, and a common electrode 203 (as shown in FIGS. 2 and 3).
  • the pixel electrode 109 is provided with two mutually perpendicular main electrodes 107 and a plurality of strip electrodes 104. One end of the strip electrodes 104 is connected to the main electrode 107, and the other end faces in a direction away from the main electrode 107.
  • the common electrode 203 is provided with two regions, which are respectively referred to as a first region 105 and a second region 106.
  • the first region 105 and the second region 106 are coplanar, both on the plane where the common electrode 203 is located, and do not overlap.
  • the first region 105 corresponds to a position where the pixel electrode 109 is located.
  • the first region 105 is a projection of a peripheral contour of the pixel electrode 109 on a plane of the common electrode 203, and the shape and area of the first region 105 are
  • the shape and area of the peripheral contour of the pixel electrode 109 are identical, and the peripheral contour refers to a shape in which the ends of the plurality of strip electrodes 104 away from the end of the stem electrode 107 are connected.
  • the second region 106 is adjacent to the first region 105.
  • the second region 106 is adjacent to at least one side of the first region 106, and the second region 106 can be symmetrically disposed on the first region 105. Side, or the second area 106 surrounds the first area 105 on three sides, or the second area 106 surrounds the first area 105 on all four sides.
  • the second region 106 is provided with a plurality of openings 108 having a shape of a rectangle, a circle, a triangle or any other shape.
  • the opening 108 is oriented to face one end of the strip electrode 104 away from the stem electrode 107, i.e., the center of the opening 108 is collinear with the projection of a strip electrode 104 on the plane of the common electrode 203 (dashed line 110).
  • Figure 2 is a partial schematic view of a first embodiment of the A-A' section of Figure 1.
  • the glass substrate 204, the common electrode 203, the insulating layer 202, the pixel electrode 109 (strip electrode 104), and the passivation layer 201 are laminated and integrated in order.
  • the second region 106 of the common electrode 203 is provided with an opening 108 at a position on the second region 106 near the edge of the pixel electrode 109 (strip electrode 104).
  • the opening 108 is disposed at a position facing one end of the strip electrode 104 away from the trunk electrode 107, that is, the center of the opening 108 is collinear with the projection of one strip electrode 104 on the plane where the common electrode 203 is located. (Line 110).
  • the opening 108 is disposed on a side of the common electrode 203 facing the pixel electrode 109 (strip electrode 104) and has a first predetermined depth h1 which is less than or equal to the thickness H of the common electrode 203.
  • Figure 3 is a partial schematic view of a second embodiment of the A-A' section of Figure 1.
  • the glass substrate 204, the common electrode 203, the insulating layer 202, the pixel electrode 109 (strip electrode 104), and the passivation layer 201 are laminated and integrated in order.
  • the second region 106 of the common electrode 203 is provided with an opening 108 at a position on the second region 106 near the edge of the pixel electrode 109 (strip electrode 104).
  • the opening 108 is disposed at a position facing one end of the strip electrode 104 away from the trunk electrode 107, that is, the center of the opening 108 is collinear with the projection of one strip electrode 104 on the plane where the common electrode 203 is located. (dashed line 110).
  • the opening 108 is disposed on a side of the common electrode 203 facing away from the pixel electrode 109 (strip electrode 104) and has a second predetermined depth second predetermined depth h2, the second predetermined depth second predetermined depth h2 being less than or equal to the common electrode The thickness H of 203.
  • the liquid crystal display device of the present invention comprises a backlight, an array substrate, and a color filter substrate.
  • the backlight, the array substrate and the color filter substrate are sequentially stacked and integrated.
  • the array substrate includes a gate line 103, a data line 101, a thin film transistor 102, a pixel electrode 109, and a common electrode 203 (not shown).
  • the pixel electrode 109 is provided with two mutually perpendicular main electrodes 107 and a plurality of strip electrodes 104. One end of the strip electrodes 104 is connected to the main electrode 107, and the other end faces in a direction away from the main electrode 107.
  • the common electrode is provided with two regions, which are respectively referred to as a first region 105 and a second region 106.
  • the first region 105 and the second region 106 are coplanar, both on the plane where the common electrode is located, and do not overlap.
  • the first region 105 corresponds to a position where the pixel electrode 109 is located.
  • the first region 105 is a projection of a peripheral contour of the pixel electrode 109 on a plane of the common electrode, and the shape, area, and pixel of the first region 105.
  • the shape and area of the peripheral contour of the electrode 109 are the same, and the peripheral contour refers to a shape in which the ends of the plurality of strip electrodes 104 away from the end of the stem electrode 107 are connected.
  • the second region 106 is adjacent to the first region 105. Specifically, the second region 106 is adjacent to at least one side of the first region 106, and the second region 106 can be symmetrically disposed on the first region 105. Side, or the second area 106 surrounds the first area 105 on three sides, or the second area 106 surrounds the first area 105 on all four sides.
  • the second region 106 is provided with a plurality of openings 108 having a shape of a rectangle, a circle, a triangle or any other shape.
  • the array substrate includes a glass substrate 204, a common electrode 203, an insulating layer 202, and a pixel electrode 109 (strip electrode 104).
  • the passivation layer 201, the glass substrate 204, the common electrode 203, the insulating layer 202, the pixel electrode 109 (strip electrode 104), and the passivation layer 201 are laminated and integrated in order.
  • the second region 106 of the common electrode 203 is provided with an opening 108 at a position on the second region 106 near the edge of the pixel electrode 109 (strip electrode 104).
  • the opening 108 is disposed at a position facing one end of the strip electrode 104 away from the trunk electrode 107, that is, the center of the opening 108 is collinear with the projection of one strip electrode 104 on the plane where the common electrode 203 is located. (dashed line 110).
  • the opening 108 is disposed on a side of the common electrode 203 facing the pixel electrode 109 (strip electrode 104) and has a first predetermined depth h1 which is less than or equal to the thickness H of the common electrode 203, and/or The opening 108 is disposed on a side of the common electrode 203 facing away from the pixel electrode 109 (strip electrode 104) and has a second predetermined depth second predetermined depth h2, the second predetermined depth second predetermined depth h2 being less than or equal to the common electrode The thickness H of 203.
  • the opening direction of the opening is disposed on the common electrode facing the pixel electrode.
  • the inner wall of the opening collects electric charge, so an electric field is formed between the opening and the end of the strip electrode away from the main electrode, and further, since the opening has a depth, the depth Less than or equal to the thickness of the common electrode, the opening direction and depth of the opening may be set according to the magnitude and direction of the force applied to the liquid crystal molecules, thereby adjusting the amount of electric charge accumulated on the inner wall of the opening, thereby adjusting the opening and the strip electrode away from each other.
  • An electric field between one end of the main electrode adjusts the alignment of the liquid crystal molecules at the edge of the pixel electrode 109 such that the orientation of the liquid crystal molecules at the edge of the pixel electrode 109 and the liquid crystal of the pixel electrode 109 except the edge (middle region)
  • the orientation of the molecules is substantially the same, preventing liquid crystal molecules from being on the edge of the pixel electrode 109 Bias fields that appear disorders, and to enhance the display effect of the liquid crystal display device.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
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  • Liquid Crystal (AREA)
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  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)

Abstract

一种阵列基板，包括薄膜晶体管（102）、数据线（101）、栅极线（103）、像素电极（109），所述阵列基板还包括：一公共电极（203），所述公共电极（203）上定义有第一区域（105）及第二区域（106），所述第一区域（105）为所述像素电极（109）在所述公共电极（203）所在平面上的投影，所述第二区域（106）靠近所述第一区域（105）的至少一侧边；所述公共电极（203）在所述第二区域（106）上设有至少一开口（108）。

Description

阵列基板及液晶显示装置 技术领域
本发明涉及液晶显示技术领域，特别涉及一种阵列基板及液晶显示装置。
 背景技术
传统的液晶显示装置的阵列基板上设有多个像素电极，这些像素电极用于产生电场，以对液晶分子施加作用力，从而改变液晶分子的偏向。其中，像素电极上设置有至少两个主干电极以及多个条状电极，该两个主干电极相互垂直，这些条状电极与主干电极成一定的角度设置。当像素电极上的条状电极通电时，分布在像素电极边缘区域的电荷的密度与分布在像素电极中部区域的电荷的密度有较大的差别，即，分布在条状电极上远离两个主干电极的一端的电荷的密度大于分布在条状电极上其它部分的电荷的密度，导致像素电极的边缘区域对液晶分子产生的作用力的大小、方向与像素电极中部区域对液晶分子产生的作用力的大小、方向均不同，因此，在像素电极的边缘区域，液晶分子会出现排列紊乱的现象，降低了液晶显示装置的显示效果。
 技术问题
本发明的一个目的在于提供一种液晶显示装置，其能防止液晶分子在像素电极的边缘区域出现偏向紊乱的现象，降低液晶显示装置的显示效果。
本发明的另一个目的在于提供一种阵列基板，其能防止液晶分子在像素电极的边缘区域出现偏向紊乱的现象，降低液晶显示装置的显示效果。
 技术解决方案
本发明提供了一种液晶显示装置，包括：背光源、阵列基板、彩色滤光片基板；所述阵列基板包括：薄膜晶体管、数据线、栅极线；其中所述阵列基板还包括：一像素电极，所述像素电极包括至少一条状电极和至少一主干电极；一公共电极，所述公共电极上定义有：第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及第二区域，所述第二区域靠近所述第一区域的至少一侧边，所述第二区域处在所述第一区域的四周；所述公共电极在所述第二区域上设有至少一开口，所述开口的位置为在所述第二区域上靠近像素电极的边缘处；所述开口的深度小于或等于所述公共电极的厚度。
在上述液晶显示装置中，所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
在上述液晶显示装置中，所述开口设置在所述公共电极面向所述像素电极的一面上。
在上述液晶显示装置中，所述开口设置在所述公共电极背向所述像素电极的一面上。
在上述液晶显示装置中，所述第一区域为所述像素电极的外围轮廓在所述公共电极所在平面上的投影，所述外围轮廓是所述条状电极远离所述主干电极的一端的端点连成的形状。
本发明的另一个目的在于提供一种阵列基板，其能防止液晶分子在像素电极的边缘区域出现偏向紊乱的现象，降低液晶显示装置的显示效果。
为解决上述问题，本发明提供了一种阵列基板，包括薄膜晶体管、数据线、栅极线、像素电极，所述像素电极包括至少一条状电极和至少一主干电极，所述阵列基板还包括：一公共电极，所述公共电极上定义有：第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及第二区域，所述第二区域靠近所述第一区域的至少一侧边；所述公共电极在所述第二区域上设有至少一开口。
在上述阵列基板中，所述开口的位置为在所述第二区域上靠近像素电极的边缘处。
在上述阵列基板中，所述第二区域处在所述第一区域的四周。
在上述阵列基板中，所述开口的深度小于或等于所述公共电极的厚度。
在上述阵列基板中，所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
本发明的另一个目的在于提供一种液晶显示装置，其能防止液晶分子在像素电极的边缘区域出现偏向紊乱的现象，降低液晶显示装置的显示效果。
为解决上述问题，本发明提供了一种液晶显示装置，包括：背光源、阵列基板、彩色滤光片基板；所述阵列基板包括：薄膜晶体管、数据线、栅极线；所述阵列基板还包括：一像素电极，所述像素电极包括至少一条状电极和至少一主干电极；一公共电极，所述公共电极上定义有：第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及第二区域，所述第二区域靠近所述第一区域的至少一侧边；所述公共电极在所述第二区域上设有至少一开口。
在上述液晶显示装置中，所述开口的位置为在所述第二区域上靠近像素电极的边缘处。
在上述液晶显示装置中，所述第二区域处在所述第一区域的四周。
在上述液晶显示装置中，所述开口的深度小于或等于所述公共电极的厚度。
在上述液晶显示装置中，所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
 有益效果
本发明相对现有技术，由于在公共电极上靠近像素电极的区域边缘处设有开口，并且该开口的位置设置于像素电极的四周边缘附近，该开口的开口方向设置于公共电极上面向像素电极的一面或背对像素电极的一面，该开口的内壁会聚集电荷，因此该开口与条状电极远离主干电极的一端之间会形成一电场，另外，由于该开口具有一深度，该深度小于或等于公共电极的厚度，可以根据对液晶分子施加的作用力的大小和方向来设置该开口的开口方向以及深度，从而调整开口内壁上聚集的电荷的数量，进而调整开口与条状电极远离主干电极的一端之间的电场，调整对像素电极边缘处液晶分子的排列，使得处在像素电极边缘处的液晶分子的取向与像素电极除边缘处以外的部位（中部区域）的液晶分子的取向大致相同，防止液晶分子在像素电极的边缘区域出现偏向紊乱的现象，提高了液晶显示装置的显示效果。
 附图说明
图1为本发明的阵列基板的局部示意图；
图2为图1中的A-A’截面的第一个实施例的局部示意图；
图3为图1中的A-A’截面的第二个实施例的局部示意图。
 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。
参考图1，图1为本发明的阵列基板的局部示意图。本发明的阵列基板包括栅极线103、数据线101、薄膜晶体管102、像素电极109、公共电极203（如图2和3所示）。像素电极109上设有两个相互垂直的主干电极107和多个条状电极104，这些条状电极104的一端与主干电极107相连，另一端朝向远离主干电极107的方向。公共电极203上设有两个区域，分别记为第一区域105和第二区域106，第一区域105和第二区域106共面，均在公共电极203所在的平面上，并且不重叠。该第一区域105与该像素电极109所在的位置对应，具体地，该第一区域105为像素电极109的外围轮廓在公共电极203所在平面上的投影，该第一区域105的形状、面积与像素电极109的外围轮廓的形状、面积一致，该外围轮廓是指多个条状电极104的远离主干电极107的一端的端点连成的形状。该第二区域106与第一区域105相邻，具体地，该第二区域106靠近该第一区域106的至少一侧边，该第二区域106可以对称地设置于该第一区域105的两侧，或者，该第二区域106三面围绕该第一区域105，或者，该第二区域106四面包围该第一区域105。该第二区域106上设置有多个开口108，该开口108的形状为矩形、圆形、三角形或其它任意形状。该开口108的位置面向一个条状电极104远离主干电极107的一端，即，该开口108的中心与一个条状电极104在公共电极203所在的平面上的投影共线（虚线110）。
参考图2，图2为图1中的A-A’截面的第一个实施例的局部示意图。在本实施例中，玻璃基板204、公共电极203、绝缘层202、像素电极109（条状电极104）和钝化层201依先后次序层叠组合为一体。公共电极203的第二区域106上设有开口108，该开口108的位置为在第二区域106上靠近像素电极109（条状电极104）的边缘处。具体地，该开口108设置在面向一个条状电极104的远离主干电极107的一端的位置上，即，该开口108的中心与一个条状电极104在公共电极203所在的平面上的投影共线（直线110）。该开口108设置在公共电极203面向像素电极109（条状电极104）的一面上并具有一第一预定深度h1，该第一预定深度h1小于或等于公共电极203的厚度H。
参考图3，图3为图1中的A-A’截面的第二个实施例的局部示意图。在本实施例中，玻璃基板204、公共电极203、绝缘层202、像素电极109（条状电极104）和钝化层201依先后次序层叠组合为一体。公共电极203的第二区域106上设有开口108，该开口108的位置为在第二区域106上靠近像素电极109（条状电极104）的边缘处。具体地，该开口108设置在面向一个条状电极104的远离主干电极107的一端的位置上，即，该开口108的中心与一个条状电极104在公共电极203所在的平面上的投影共线（虚线110）。该开口108设置在公共电极203背向像素电极109（条状电极104）的一面上并具有一第二预定深度第二预定深度h2，该第二预定深度第二预定深度h2小于或等于公共电极203的厚度H。
本发明的液晶显示装置包括背光源、阵列基板、彩色滤光片基板，该背光源、阵列基板和彩色滤光片基板依次叠加组合为一体。如图1、2和3所示，该阵列基板包括栅极线103、数据线101、薄膜晶体管102、像素电极109、公共电极203（图中未示出）。像素电极109上设有两个相互垂直的主干电极107和多个条状电极104，这些条状电极104的一端与主干电极107相连，另一端朝向远离主干电极107的方向。公共电极上设有两个区域，分别记为第一区域105和第二区域106，第一区域105和第二区域106共面，均在公共电极所在的平面上，并且不重叠。该第一区域105与该像素电极109所在的位置对应，具体地，该第一区域105为像素电极109的外围轮廓在公共电极所在平面上的投影，该第一区域105的形状、面积与像素电极109的外围轮廓的形状、面积一致，该外围轮廓是指多个条状电极104的远离主干电极107的一端的端点连成的形状。该第二区域106与第一区域105相邻，具体地，该第二区域106靠近该第一区域106的至少一侧边，该第二区域106可以对称地设置于该第一区域105的两侧，或者，该第二区域106三面围绕该第一区域105，或者，该第二区域106四面包围该第一区域105。该第二区域106上设置有多个开口108，该开口108的形状为矩形、圆形、三角形或其它任意形状。该开口的位置面向一个条状电极104远离主干电极107的一端，即，该开口108的中心与一个条状电极104在公共电极203所在的平面上的投影共线（虚线110）。从图1所示的阵列基板的A-A’截面观察（如图2和图3所示），阵列基板包括，玻璃基板204、公共电极203、绝缘层202、像素电极109（条状电极104）和钝化层201，玻璃基板204、公共电极203、绝缘层202、像素电极109（条状电极104）和钝化层201依先后次序层叠组合为一体。公共电极203的第二区域106上设有开口108，该开口108的位置为在第二区域106上靠近像素电极109（条状电极104）的边缘处。具体地，该开口108设置在面向一个条状电极104的远离主干电极107的一端的位置上，即，该开口108的中心与一个条状电极104在公共电极203所在的平面上的投影共线（虚线110）。该开口108设置在公共电极203面向像素电极109（条状电极104）的一面上并具有一第一预定深度h1，该第一预定深度h1小于或等于公共电极203的厚度H，和/或者，该开口108设置在公共电极203背向像素电极109（条状电极104）的一面上并具有一第二预定深度第二预定深度h2，该第二预定深度第二预定深度h2小于或等于公共电极203的厚度H。
在本发明中，由于在公共电极上靠近像素电极109的区域边缘处设有开口，并且该开口的位置设置于像素电极109的四周边缘附近，该开口的开口方向设置于公共电极上面向像素电极109的一面或背对像素电极109的一面，该开口的内壁会聚集电荷，因此该开口与条状电极远离主干电极的一端之间会形成一电场，另外，由于该开口具有一深度，该深度小于或等于公共电极的厚度，可以根据对液晶分子施加的作用力的大小和方向来设置该开口的开口方向以及深度，从而调整开口内壁上聚集的电荷的数量，进而调整开口与条状电极远离主干电极的一端之间的电场，调整对像素电极109边缘处液晶分子的排列，使得处在像素电极109边缘处的液晶分子的取向与像素电极109除边缘处以外的部位（中部区域）的液晶分子的取向大致相同，防止液晶分子在像素电极109的边缘区域出现偏向紊乱的现象，提高了液晶显示装置的显示效果。
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 (15)

  1. 一种液晶显示装置，包括：背光源、阵列基板、彩色滤光片基板；所述阵列基板包括：薄膜晶体管、数据线、栅极线；其中
    所述阵列基板还包括：
    一像素电极，所述像素电极包括至少一条状电极和至少一主干电极；
    一公共电极，所述公共电极上定义有：
    第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及
    第二区域，所述第二区域靠近所述第一区域的至少一侧边，所述第二区域处在所述第一区域的四周；
    所述公共电极在所述第二区域上设有至少一开口，所述开口的位置为在所述第二区域上靠近像素电极的边缘处；
    所述开口的深度小于或等于所述公共电极的厚度。
  2. 根据权利要求1所述的液晶显示装置，其中
    所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
  3. 根据权利要求1所述的液晶显示装置，其中
    所述开口设置在所述公共电极面向所述像素电极的一面上。
  4. 根据权利要求1所述的液晶显示装置，其中
    所述开口设置在所述公共电极背向所述像素电极的一面上。
  5. 根据权利要求1所述的液晶显示装置，其中
    所述第一区域为所述像素电极的外围轮廓在所述公共电极所在平面上的投影，所述外围轮廓是所述条状电极远离所述主干电极的一端的端点连成的形状。
  6. 一种阵列基板，包括薄膜晶体管、数据线、栅极线、像素电极，所述像素电极包括至少一条状电极和至少一主干电极，其中
    所述阵列基板还包括：
    一公共电极，所述公共电极上定义有：
    第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及
    第二区域，所述第二区域靠近所述第一区域的至少一侧边；
    所述公共电极在所述第二区域上设有至少一开口。
  7. 根据权利要求6所述的阵列基板，其中
    所述开口的位置为在所述第二区域上靠近像素电极的边缘处。
  8. 根据权利要求6所述的阵列基板，其中
    所述第二区域处在所述第一区域的四周。
  9. 根据权利要求6所述的阵列基板，其中
    所述开口的深度小于或等于所述公共电极的厚度。
  10. 根据权利要求6所述的阵列基板，其中
    所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
  11. 一种液晶显示装置，包括：背光源、阵列基板、彩色滤光片基板；所述阵列基板包括：薄膜晶体管、数据线、栅极线；其中
    所述阵列基板还包括：
    一像素电极，所述像素电极包括至少一条状电极和至少一主干电极；
    一公共电极，所述公共电极上定义有：
    第一区域，所述第一区域为所述像素电极在所述公共电极所在平面上的投影；及
    第二区域，所述第二区域靠近所述第一区域的至少一侧边；
    所述公共电极在所述第二区域上设有至少一开口。
  12. 根据权利要求11所述的液晶显示装置，其中
    所述开口的位置为在所述第二区域上靠近像素电极的边缘处。
  13. 根据权利要求11所述的液晶显示装置，其中
    所述第二区域处在所述第一区域的四周。
  14. 根据权利要求11所述的液晶显示装置，其中
    所述开口的深度小于或等于所述公共电极的厚度。
  15. 根据权利要求11所述的液晶显示装置，其中
    所述开口的中心与一所述条状电极在公共电极所在的平面上的投影共线。
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CN104238207A (zh) * 2014-08-22 2014-12-24 京东方科技集团股份有限公司 阵列基板及其制备方法、显示装置
CN109031822B (zh) * 2018-07-25 2020-06-26 深圳市华星光电半导体显示技术有限公司 一种液晶显示面板
CN112748616A (zh) * 2021-01-21 2021-05-04 Tcl华星光电技术有限公司 阵列基板、阵列基板的制作方法、显示面板以及显示装置

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