WO2016201750A1 - 一种阵列基板及液晶显示器 - Google Patents

一种阵列基板及液晶显示器 Download PDF

Info

Publication number
WO2016201750A1
WO2016201750A1 PCT/CN2015/083742 CN2015083742W WO2016201750A1 WO 2016201750 A1 WO2016201750 A1 WO 2016201750A1 CN 2015083742 W CN2015083742 W CN 2015083742W WO 2016201750 A1 WO2016201750 A1 WO 2016201750A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
array substrate
branches
metal line
crystal display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/083742
Other languages
English (en)
French (fr)
Inventor
谢畅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US14/768,020 priority Critical patent/US20170139273A1/en
Publication of WO2016201750A1 publication Critical patent/WO2016201750A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133538—Polarisers with spatial distribution of the polarisation direction
    • 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
    • G02F1/133776—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers having structures locally influencing the alignment, e.g. unevenness
    • 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
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel

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.
  • liquid crystal display With the development of liquid crystal display technology, liquid crystal displays have become one of the mainstream displays in the market.
  • the liquid crystal display has the characteristics of low power consumption, thin body, soft picture and no eye injury, so it is very popular among users and manufacturers.
  • the pixel unit 10 includes a pixel electrode 101 and a metal line 102 for supplying a voltage thereto. Since the metal wire 102 has a certain thickness, the metal wire 102 generally has a trapezoidal slope structure during the actual Array process fabrication process, as shown in the cross-sectional view of FIG. In the subsequent liquid crystal alignment, the liquid crystal molecules 11 are arranged along the trapezoidal slope structure, and the alignment of the liquid crystal molecules 11 will be tilted due to the existence of the slope structure.
  • the metal wire 102 is generally designed in the form of a strip which is inclined at an angle to the horizontal direction, as shown by the dotted circle portion shown in Fig. 1, which is at an angle of 45 with the horizontal direction. Therefore, in the alignment of the liquid crystal, the tilt direction of the liquid crystal molecules 11 on the slope of the metal line 102 will have an angle of 45 with the horizontal or vertical direction, as shown in FIG. At this time, when the polarization directions of the upper polarizer and the lower polarizer are the horizontal direction and the vertical direction, respectively, the tilt direction of the liquid crystal molecules on the slope of the metal line 102 and the upper polarizer or the lower polarizer also have 45.
  • the technical problem to be solved by the present invention is to provide an array substrate and a liquid crystal display, which can reduce the dark leakage of the liquid crystal display and improve the contrast.
  • a technical solution adopted by the present invention is to provide an array substrate applied to a liquid crystal display, wherein the liquid crystal display includes two upper and lower polarizers whose polarization directions are perpendicular to each other, and polarization of the two polarizers The directions are respectively a first direction and a second direction, wherein the array substrate comprises a plurality of pixel units, each of the pixel units comprising a metal line for providing a voltage, the metal line comprising a plurality of first connected alternately a branch and a plurality of second branches, the plurality of first branches sequentially extending along the first direction and spaced apart along the third direction, the plurality of second branches being respectively connected to two adjacent ones Between the adjacent ends of the first branch, such that the metal lines extend stepwise in a third direction that is different from the first direction and the second direction, thereby causing at least part of the metal lines An angle between the extending direction and the first direction or the second direction is less than a predetermined value; the metal line is
  • the second branch extends in the second direction.
  • the first direction is a horizontal direction
  • the second direction is a vertical direction
  • another technical solution adopted by the present invention is to provide an array substrate applied to a liquid crystal display, wherein the liquid crystal display includes two upper and lower polarizers whose polarization directions are perpendicular to each other, and the two polarizers The polarization directions are respectively a first direction and a second direction, and the array substrate includes a plurality of pixel units, each of the pixel units including a metal line for supplying a voltage, the metal line along the first direction, The third direction, which is different in both directions, extends stepwise such that an angle between an extending direction of at least a portion of the metal line and the first direction or the second direction is less than a predetermined value.
  • the metal line includes a plurality of first branches and a plurality of second branches alternately connected, the plurality of first branches sequentially extending along the first direction and spaced apart along the third direction, A plurality of second branches are respectively connected between adjacent ends of the adjacent two of the first branches such that the metal lines extend stepwise in the third direction.
  • the second branch extends in the second direction.
  • the first direction is a horizontal direction
  • the second direction is a vertical direction
  • the metal lines are located in a vertical projection area of a black matrix of the liquid crystal display.
  • a liquid crystal display including two upper and lower polarizers whose polarization directions are perpendicular to each other and a liquid crystal panel between the two polarizers;
  • the polarizing directions of the polarizers are respectively a first direction and a second direction
  • the liquid crystal panel includes an array substrate, a color filter substrate, and a liquid crystal layer between the array substrate and the color filter substrate;
  • the array substrate includes a plurality of pixel units, each of the pixel units including a metal line for supplying a voltage, the metal line extending in a stepwise manner in a third direction different from the first direction and the second direction, so as to An angle between an extending direction of at least a portion of the metal line and the first direction or the second direction is less than a predetermined value.
  • the metal line includes a plurality of first branches and a plurality of second branches alternately connected, the plurality of first branches sequentially extending along the first direction and spaced apart along the third direction, A plurality of second branches are respectively connected between adjacent ends of the adjacent two of the first branches such that the metal lines extend stepwise in the third direction.
  • the second branch extends in the second direction.
  • the first direction is a horizontal direction
  • the second direction is a vertical direction
  • the color filter substrate comprises a black matrix
  • the metal lines are located in a vertical projection area of the black matrix.
  • the invention has the beneficial effects that, in the array substrate of the present invention, the metal lines in the pixel unit are stepped along a third direction different from the polarization directions of the upper and lower polarizers of the liquid crystal display. Extending such that an angle between an extending direction of at least a portion of the metal line and a polarization direction of one of the polarizers is less than a predetermined value, so that in a subsequent liquid crystal orientation, on at least a portion of the slope of the metal line The angle between the oblique direction of the liquid crystal molecules and the polarization direction of one of the polarizers is less than a predetermined value, whereby the angle at which the liquid crystal molecules reverse the polarization direction of the polarized light from the upper polarizer can be reduced to reduce the transmission of the lower polarizer The polarized light, thereby reducing the darkness of the light leakage and improving the contrast.
  • FIG. 1 is a schematic diagram of a pixel structure of a liquid crystal display of the prior art
  • Figure 2 is a cross-sectional view of a metal line in the pixel structure of Figure 1, wherein the liquid crystal molecules arranged on the surface of the metal line are shown;
  • Figure 3 is a schematic view showing the arrangement of liquid crystal molecules on the metal line of the elliptical dotted line portion shown in Figure 1;
  • FIG. 4 is a schematic structural view of an embodiment of a liquid crystal display according to the present invention.
  • FIG. 5 is a schematic structural view of an embodiment of an array substrate in the liquid crystal display shown in FIG. 4;
  • Figure 6 is a schematic view showing the oblique direction of liquid crystal molecules on the slope of the metal line shown in Figure 5;
  • FIG. 7 is a schematic structural view of a metal line in another embodiment of an array substrate of a liquid crystal display according to the present invention.
  • FIG. 8 is a schematic structural view of a metal line in still another embodiment of the array substrate of the liquid crystal display of the present invention.
  • the liquid crystal display includes upper and lower polarizers 41 and 42 having polarization directions perpendicular to each other and a liquid crystal panel 43 between the polarizers 41 and 42.
  • the liquid crystal panel 43 includes an array substrate 431, a color filter substrate 432, and a liquid crystal layer 433 between the array substrate 431 and the color filter substrate 432.
  • the polarization directions of the upper polarizer 41 and the lower polarizer 42 are perpendicular to each other, and are a first direction and a second direction, respectively.
  • the first direction is a horizontal direction and the second direction is a vertical direction.
  • the first direction may not be the horizontal direction, and correspondingly the second direction is the other direction perpendicular to the first direction.
  • the color filter substrate 432 includes a black matrix (not shown).
  • the array substrate 431 includes a plurality of pixel units 51 each including a pixel electrode 511 and a metal line 512 for supplying a voltage to the pixel electrode 511.
  • the metal line 512 of the present embodiment may also be used to supply a voltage to the common electrode.
  • the metal line 512 extends stepwise in a third direction different from the horizontal direction and the vertical direction, so that the angle between the extending direction of at least part of the metal line 511 and the horizontal direction or the vertical direction is less than a predetermined one. value.
  • the predetermined value may be 1 to 10°, for example, 1.5°, 5°, or the like.
  • the metal lines 512 are located in the vertical matrix of the array substrate 531 in the black matrix of the color filter substrate 432 to prevent the metal lines 512 from blocking the light of the display area.
  • the third direction may be a direction with an angle of 45° from the horizontal direction, or a direction with an angle of 15°, 60° with the horizontal direction, or other angles.
  • the extending direction of at least a portion of the metal line 512 and the horizontal direction or the vertical direction By causing the angle between the extending direction of at least a portion of the metal line 512 and the horizontal direction or the vertical direction to be a small value, the extending direction of at least a portion of the metal line 512 and the polarization direction of the upper polarizer 41 or the lower polarizer
  • the difference between the polarization directions of 42 is small, so that in the liquid crystal alignment, the tilt direction of the liquid crystal molecules on the slope of the portion of the metal lines (ie, the oblique direction of the long axis of the liquid crystal molecules) and the upper polarizer 41 or
  • the difference in the polarization direction of the lower polarizer 42 is reduced, and the major axis and the minor axis of the liquid crystal molecules are perpendicular to each other, so that the difference between the tilt direction of the liquid crystal molecules on the slope of the portion of the metal line and the polarization direction of the upper polarizer 41
  • the angle is small, so that the polarization direction is reversed by the liquid crystal molecules, so that the light emitted from the lower polarizer 42 can be reduced, thereby reducing the dark state light leakage;
  • the inclination direction of the liquid crystal molecules on the slope of the partial metal line is smaller than the polarization direction of the lower polarizer 42, that is, the oblique direction of the portion of the liquid crystal molecules and the polarization direction of the upper polarizer 41 tend to be perpendicular, and the light is transmitted from the upper polarizer 41.
  • the polarized light from the upper polarizer 41 After entering the polarized light, the polarized light from the upper polarizer 41 has a smaller angle between the polarization direction and the short axis of the liquid crystal molecule when passing through the liquid crystal molecules on the slope of the portion of the metal strip, so the polarization direction thereof The angle of twist by the liquid crystal molecules is small, so that the light that is transmitted from the lower polarizer 42 can be reduced, and the dark state light leakage can also be reduced.
  • the metal line 512 includes a plurality of first branches 521 and a plurality of second branches 522 that are alternately connected.
  • the plurality of first branches 521 are sequentially extended in the horizontal direction and spaced apart in the third direction, and the plurality of second branches 522 are respectively connected between adjacent ends of the adjacent two first branches 521, thereby causing metal lines 512 extends stepwise in the third direction.
  • the extending direction of the second branch 522 is a vertical direction. Therefore, in the present embodiment, the extending direction of the plurality of first branches 521 is a horizontal direction, the angle with the horizontal direction is 0°, and the extending direction of the second branch 522 is a vertical direction, which is perpendicular to the vertical direction. The angle is 0°.
  • the tilt direction of the liquid crystal molecules 61 on the slope of the first branch 521 can be made the same as the vertical direction, that is, with the lower polarizer 42.
  • the polarization directions are the same, and the tilt direction of the liquid crystal molecules 61 on the slope of the second branch 522 is the same as the horizontal direction, that is, the polarization direction of the upper polarizer 41.
  • the polarized light from the upper polarizer 41 passes through the short axis of the liquid crystal molecules 61 while passing through the liquid crystal molecules 61 on the slope of the first branch 521, and passes through the liquid crystal molecules 61 on the slope of the second branch 522.
  • the polarization directions are not twisted by the liquid crystal molecules 61, that is, there is no change, so that the partially polarized light cannot pass through the lower polarizer 42, effectively avoiding dark state light leakage and improving contrast. .
  • the second branch 722 of the metal line may also be inclined at a certain angle with respect to the vertical direction, and the first branch 721 may extend in the horizontal direction.
  • the first branch 821 of the metal line is inclined at a certain angle with respect to the horizontal direction, and the second branch 822 is extended in the vertical direction.
  • first branch and the second branch may be inclined at a certain angle with respect to the horizontal direction and the vertical direction, respectively, and the angle may be 5° or 7°, etc., as long as the liquid crystal molecules can be tilted on the slope of the metal line.
  • the direction is as much as possible in the horizontal or vertical direction.
  • the present invention also provides an embodiment of an array substrate applied to a liquid crystal display, the structure and operation of the array substrate being the array substrate according to any of the preceding embodiments.

Landscapes

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

Abstract

一种阵列基板（431）及液晶显示器，所述液晶显示器包括偏振方向相互垂直的上下两个偏光片（41,42），所述两个偏光片（41,42）的偏振方向分别为第一方向和第二方向，所述阵列基板（431）包括多个像素单元（51），每个所述像素单元（51）包括用于提供电压的金属线条（512），所述金属线条（512）沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，以使所述金属线条（512）的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值。通过上述方式能够降低暗态漏光，提高对比度。

Description

一种阵列基板及液晶显示器
【技术领域】
本发明涉及液晶显示技术领域，特别是涉及一种阵列基板及液晶显示器。
【背景技术】
随着液晶显示技术的发展，目前液晶显示器已经成为市场主流的显示器之一。液晶显示器具有功耗低、机身薄、画面柔和不伤眼等特点，因此备受用户和生产商的欢迎。
在液晶显示器的像素设计中，通常会采用一些金属线对像素电极和公共电极提供电压。如图1所示，像素单元10中包括像素电极101和用于对其提供电压的金属线102。由于金属线102存在一定的厚度，在实际的Array工艺制作过程中，金属线102通常具有梯形的坡面结构，如图2所示的截面图。在后续的液晶配向中，液晶分子11会沿着梯形的坡面结构进行排列，由于坡面结构的存在，将会导致液晶分子11排列发生倾斜。
现有技术中，金属线102一般设计为条状，其以与水平方向成一定角度倾斜，如图1所示的虚线圆圈部分，该部分与水平方向的夹角为45°。因此，在液晶配向时，在金属线102的坡面上的液晶分子11的倾斜方向将会与水平方向或竖直方向之间具有45°的夹角，如图3所示。此时，当上偏光片和下偏光片的偏振方向分别为水平方向和竖直方向时，在金属线102坡面上的液晶分子的倾斜方向和上偏光片或下偏光片之间也具有45°，从而当来自下偏光片的偏振光在穿过坡面上的液晶分子时其偏振方向将会被液晶分子扭转一定的角度，使得其与上偏光片的偏振方向不再垂直，从而造成暗太漏光，导致对比度下降。
【发明内容】
本发明主要解决的技术问题是提供一种阵列基板及液晶显示器，能够减少液晶显示器的暗太漏光，提高对比度。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种应用于液晶显示器的阵列基板，所述液晶显示器包括偏振方向相互垂直的上下两个偏光片，所述两个偏光片的偏振方向分别为第一方向和第二方向，其中，所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，进而使得所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值；所述金属线条位于液晶显示器的黑色矩阵的垂直投影区域。
其中，所述第二分支沿所述第二方向延伸。
其中，所述第一方向为水平方向，所述第二方向为竖直方向。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种应用于液晶显示器的阵列基板，所述液晶显示器包括偏振方向相互垂直的上下两个偏光片，所述两个偏光片的偏振方向分别为第一方向和第二方向，所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，以使所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值。
其中，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿所述第三方向呈阶梯状延伸。
其中，所述第二分支沿所述第二方向延伸。
其中，所述第一方向为水平方向，所述第二方向为竖直方向。
其中，所述金属线条位于液晶显示器的黑色矩阵的垂直投影区域。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示器，包括偏振方向相互垂直的上下两个偏光片以及位于所述两个偏光片之间的液晶面板；所述两个偏光片的偏振方向分别为第一方向和第二方向，所述液晶面板包括阵列基板、彩色滤光基板以及位于所述阵列基板和彩色滤光基板之间的液晶层；所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，以使所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值。
其中，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿所述第三方向呈阶梯状延伸。
其中，所述第二分支沿所述第二方向延伸。
其中，所述第一方向为水平方向，所述第二方向为竖直方向。
其中，所述彩色滤光基板包括黑色矩阵，所述金属线条位于所述黑色矩阵的垂直投影区域。
本发明的有益效果是：区别于现有技术的情况，本发明的阵列基板中，使像素单元中的金属线条沿与液晶显示器的上下两个偏光片的偏振方向均不同的第三方向呈阶梯状延伸，以使金属线条的至少部分的延伸方向与其中一个偏光片的偏振方向之间的夹角小于预定值，从而在后续的液晶取向中，使得在至少部分的金属线条的坡面上的液晶分子的倾斜方向和其中一个偏光片的偏振方向之间的夹角小于预定值，由此可以减小液晶分子扭转来自上偏光片的偏振光的偏振方向的角度，以减少透过下偏光片的偏振光，从而减少暗太漏光，提高对比度。
【附图说明】
图1是现有技术一种液晶显示器的像素结构示意图；
图2是图1所述的像素结构中的金属线的截面图，其中，图中示出了在金属线表面排列的液晶分子；
图3是液晶分子在图1所示的椭圆虚线部分的金属线上的排列示意图；
图4是本发明液晶显示器一实施方式的结构示意图；
图5是图4所示的液晶显示器中，阵列基板一实施方式的结构示意图；
图6是液晶分子在图5所示的金属线条的坡面上的倾斜方向示意图；
图7是本发明液晶显示器的阵列基板另一实施方式中，金属线条的结构示意图；
图8是本发明液晶显示器的阵列基板又一实施方式中，金属线条的结构示意图。
【具体实施方式】
下面将结合附图和实施方式对本发明进行详细说明。
参阅图4，本发明的液晶显示器的一实施方式中，液晶显示器包括偏振方向相互垂直的上下两个偏光片41、42以及位于两个偏光片41、42之间的液晶面板43。液晶面板43包括阵列基板431、彩色滤光基板432以及位于阵列基板431和彩色滤光基板432之间的液晶层433。
其中，上偏光片41和下偏光片42的偏振方向相会垂直，分别是第一方向和第二方向。本实施方式中，第一方向为水平方向，第二方向为竖直方向。在其他实施方式中，第一方向可以不是水平方向，对应地第二方向是与第一方向垂直的其他方向。
其中，彩色滤光基板432包括黑色矩阵（图中未示）。
参阅图5，阵列基板431包括多个像素单元51，每个像素单元51包括像素电极511和用于对像素电极511提供电压的金属线条512。当然，本实施例的金属线条512也可以是用于对公共电极提供电压。
其中，金属线条512沿与水平方向、竖直方向均不相同的第三方向呈阶梯状延伸，以使金属线条511的至少部分的延伸方向与水平方向或竖直方向之间的夹角小于预定值。预定值可以是1~10°，例如为1.5°、5°等。
金属线条512位于彩色滤光基板432的黑色矩阵在阵列基板531的垂直投影区域内，以避免金属线条512遮挡显示区域的光线。
所述第三方向可以是与水平方向之间夹角为45°的方向，或者是与水平方向之间夹角为15°、60°的方向，或其他夹角的方向。
通过使金属线条512的至少部分的延伸方向与水平方向或竖直方向之间的夹角为较小值，使得金属线条512的至少部分的延伸方向与上偏光片41的偏振方向或下偏光片42的偏振方向之间的差异较小，从而在液晶配向时，可以使得在该部分金属线条的坡面上的液晶分子的倾斜方向（即液晶分子长轴的倾斜方向）与上偏光片41或下偏光片42的偏振方向的差异减小，而液晶分子的长轴与短轴相互垂直，因此当在该部分金属线条坡面上的液晶分子的倾斜方向与上偏光片41的偏振方向的差异较小时，光线从上偏光片41穿入变成偏振光后，来自上偏光片41的偏振光在经过该部分金属线条坡面上的液晶分子时其偏振方向与液晶分子的长轴之间的夹角较小，因此其偏振方向被液晶分子扭转的角度较小，从而可以减少从下偏光片42透出去的光线，进而可以减少暗态漏光；当在该部分金属线条坡面上的液晶分子的倾斜方向与下偏光片42的偏振方向差异较小时，即该部分液晶分子的倾斜方向和上偏光片41的偏振方向趋向于垂直，光线从上偏光片41穿入变成偏振光后，来自上偏光片41的偏振光在经过该部分金属线条坡面上的液晶分子时其偏振方向与液晶分子的短轴之间的夹角较小，因此其偏振方向被液晶分子扭转的角度较小，从而可以减少从下偏光片42透出去的光线，同样可以减少暗态漏光。
具体地，本实施方式中，金属线条512包括交替连接的多个第一分支521和多个第二分支522。多个第一分支521沿水平方向顺次延伸且沿第三方向间隔排列，多个第二分支522分别连接于相邻的两个第一分支521的相邻端部之间，从而使得金属线条512沿第三方向呈阶梯状延伸。进一步地，第二分支522的延伸方向为竖直方向。因此，在本实施方式里，多个第一分支521的延伸方向为水平方向，其与水平方向的夹角为0°，第二分支522的延伸方向为竖直方向，其与竖直方向的夹角为0°。
因此，在对液晶层43的液晶分子进行配向时，如图6所示，可以使得在第一分支521的坡面上的液晶分子61的倾斜方向与竖直方向相同，即与下偏光片42的偏振方向相同，而在第二分支522的坡面上的液晶分子61的倾斜方向与水平方向相同，即与上偏光片41的偏振方向相同。由此，来自上偏光片41的偏振光经过在第一分支521的坡面上的液晶分子61时从液晶分子61的短轴穿过，经过在第二分支522的坡面上的液晶分子61时从液晶分子61的长轴穿过，偏振方向均没有被液晶分子61扭转，即未发生改变，从而使得该部分偏振光无法透过下偏光片42，有效避免了暗态漏光，提高了对比度。
如图7所示，在本发明液晶显示器的另一实施方式中，金属线条的第二分支722也可以是相对竖直方向倾斜一定的角度，而第一分支721则沿水平方向延伸。或者，如图8所示，金属线条的第一分支821为相对于水平方向倾斜一定的角度，而第二分支822则沿竖直方向延伸。
当然，第一分支和第二分支可以是分别相对于水平方向和竖直方向倾斜一定的角度，该角度可以是5°或7°等，只要能够使得液晶分子在金属线条的坡面上的倾斜方向与水平方向或竖直方向尽可能相同即可。
本发明还提供一种应用于液晶显示器的阵列基板的实施方式，所述阵列基板的结构和工作方式如前述任一实施方式所述的阵列基板。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种应用于液晶显示器的阵列基板，所述液晶显示器包括偏振方向相互垂直的上下两个偏光片，所述两个偏光片的偏振方向分别为第一方向和第二方向，其中，
    所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，进而使得所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值；
    所述金属线条位于液晶显示器的黑色矩阵的垂直投影区域。
  2. 根据权利要求1所述的阵列基板，其中，所述第二分支沿所述第二方向延伸。
  3. 根据权利要求1所述的阵列基板，其中，所述第一方向为水平方向，所述第二方向为竖直方向。
  4. 一种应用于液晶显示器的阵列基板，所述液晶显示器包括偏振方向相互垂直的上下两个偏光片，所述两个偏光片的偏振方向分别为第一方向和第二方向，其中，
    所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，以使所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值。
  5. 根据权利要求4所述的阵列基板，其中，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿所述第三方向呈阶梯状延伸。
  6. 根据权利要求5所述的阵列基板，其中，所述第二分支沿所述第二方向延伸。
  7. 根据权利要求5所述的阵列基板，其中，所述第一方向为水平方向，所述第二方向为竖直方向。
  8. 根据权利要求4所述的阵列基板，其中，所述金属线条位于液晶显示器的黑色矩阵的垂直投影区域。
  9. 一种液晶显示器，其中，包括偏振方向相互垂直的上下两个偏光片以及位于所述两个偏光片之间的液晶面板；
    所述两个偏光片的偏振方向分别为第一方向和第二方向，所述液晶面板包括阵列基板、彩色滤光基板以及位于所述阵列基板和彩色滤光基板之间的液晶层；
    所述阵列基板包括多个像素单元，每个所述像素单元包括用于提供电压的金属线条，所述金属线条沿与所述第一方向、第二方向均不相同的第三方向呈阶梯状延伸，以使所述金属线条的至少部分的延伸方向与所述第一方向或所述第二方向之间的夹角小于预定值。
  10. 根据权利要求9所述的液晶显示器，其中，所述金属线条包括交替连接的多个第一分支和多个第二分支，所述多个第一分支沿所述第一方向顺次延伸且沿所述第三方向间隔排列，所述多个第二分支分别连接于相邻的两个所述第一分支的相邻端部之间，以使得所述金属线条沿所述第三方向呈阶梯状延伸。
  11. 根据权利要求10所述的液晶显示器，其中，所述第二分支沿所述第二方向延伸。
  12. 根据权利要求10所述的液晶显示器，其中，所述第一方向为水平方向，所述第二方向为竖直方向。
  13. 根据权利要求9所述的液晶显示器，其中，所述彩色滤光基板包括黑色矩阵，所述金属线条位于所述黑色矩阵的垂直投影区域。
PCT/CN2015/083742 2015-06-18 2015-07-10 一种阵列基板及液晶显示器 Ceased WO2016201750A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/768,020 US20170139273A1 (en) 2015-06-18 2015-07-10 Array substrate and lcd device including the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510340765.4 2015-06-18
CN201510340765.4A CN104932157B (zh) 2015-06-18 2015-06-18 一种阵列基板及液晶显示器

Publications (1)

Publication Number Publication Date
WO2016201750A1 true WO2016201750A1 (zh) 2016-12-22

Family

ID=54119388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/083742 Ceased WO2016201750A1 (zh) 2015-06-18 2015-07-10 一种阵列基板及液晶显示器

Country Status (3)

Country Link
US (1) US20170139273A1 (zh)
CN (1) CN104932157B (zh)
WO (1) WO2016201750A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208621878U (zh) * 2018-09-03 2019-03-19 重庆惠科金渝光电科技有限公司 显示面板及显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1928681A (zh) * 2005-09-05 2007-03-14 中华映管股份有限公司 薄膜晶体管阵列基板、其静电放电保护元件及其制造方法
CN101241254A (zh) * 2008-03-04 2008-08-13 友达光电股份有限公司 触控式显示装置
US20100283929A1 (en) * 2005-03-31 2010-11-11 Ji-Young Ahn Array substrate for in-plane switching liquid crystal display device and method of fabricating the same
CN102116977A (zh) * 2009-12-31 2011-07-06 北京京东方光电科技有限公司 阵列基板及其制造方法
CN102221760A (zh) * 2010-04-15 2011-10-19 昆山龙腾光电有限公司 阵列基板及液晶显示面板

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2973934B2 (ja) * 1996-07-11 1999-11-08 日本電気株式会社 液晶表示装置、及び液晶表示装置を搭載した電子機器
JP4364332B2 (ja) * 1998-06-23 2009-11-18 シャープ株式会社 液晶表示装置
JP2001188221A (ja) * 1999-12-28 2001-07-10 Matsushita Electric Ind Co Ltd 液晶表示装置
KR100593315B1 (ko) * 2000-01-31 2006-06-26 엘지.필립스 엘시디 주식회사 박막 트랜지스터 어레이 패널 및 액정표시장치
US6917406B2 (en) * 2001-03-16 2005-07-12 Hannstar Display Corp. Electrode array structure of IPS-LCD
JP4041336B2 (ja) * 2001-06-29 2008-01-30 シャープ株式会社 液晶表示装置用基板及びそれを備えた液晶表示装置及びその製造方法
TW554304B (en) * 2001-12-12 2003-09-21 Hannstar Display Corp Two-domain In-plane switching mode LCD
JP4720970B2 (ja) * 2003-03-19 2011-07-13 日本電気株式会社 液晶表示装置
JP4159446B2 (ja) * 2003-10-24 2008-10-01 Ｎｅｃ液晶テクノロジー株式会社 Ｉｐｓ液晶表示素子の電極パターン
US8149346B2 (en) * 2005-10-14 2012-04-03 Semiconductor Energy Laboratory Co., Ltd. Display device and manufacturing method thereof
JP4949073B2 (ja) * 2007-02-23 2012-06-06 株式会社 日立ディスプレイズ 液晶表示装置
KR20110116803A (ko) * 2010-04-20 2011-10-26 삼성전자주식회사 표시 기판, 이를 포함하는 액정 표시 장치 및 이의 제조 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100283929A1 (en) * 2005-03-31 2010-11-11 Ji-Young Ahn Array substrate for in-plane switching liquid crystal display device and method of fabricating the same
CN1928681A (zh) * 2005-09-05 2007-03-14 中华映管股份有限公司 薄膜晶体管阵列基板、其静电放电保护元件及其制造方法
CN101241254A (zh) * 2008-03-04 2008-08-13 友达光电股份有限公司 触控式显示装置
CN102116977A (zh) * 2009-12-31 2011-07-06 北京京东方光电科技有限公司 阵列基板及其制造方法
CN102221760A (zh) * 2010-04-15 2011-10-19 昆山龙腾光电有限公司 阵列基板及液晶显示面板

Also Published As

Publication number Publication date
US20170139273A1 (en) 2017-05-18
CN104932157B (zh) 2018-07-17
CN104932157A (zh) 2015-09-23

Similar Documents

Publication Publication Date Title
US11747689B2 (en) Display assembly and display apparatus
TW201202792A (en) Liquid crystal display device with switchable viewing angle
WO2015096265A1 (zh) 像素结构及具有该像素结构的液晶显示面板
WO2015043036A1 (zh) 一种阵列基板及液晶显示面板
WO2017088201A1 (zh) 液晶显示装置及其反射式显示模组
US10386662B2 (en) Liquid crystal panel, liquid crystal display device and method for improving liquid crystal rotation obstacle
KR101860179B1 (ko) 디스플레이 패널
WO2017024603A1 (zh) 一种液晶显示面板及其制作方法
WO2017101161A1 (zh) 基于hsd结构的显示面板和显示装置
CN103698942B (zh) 阵列基板、液晶模组及显示装置
WO2014023010A1 (zh) 一种阵列基板及液晶显示面板
US20200310202A1 (en) Pixel structure and liquid crystal display panel
CN106526988B (zh) 显示器阵列基板画素结构及其应用的显示设备
WO2017049708A1 (zh) 一种阵列基板以及液晶显示面板
WO2016201750A1 (zh) 一种阵列基板及液晶显示器
WO2018214214A1 (zh) 透明显示面板及装置
WO2017092079A1 (zh) 液晶显示装置及其液晶显示面板
WO2017181510A1 (zh) 液晶显示面板的配向方法
JP2007011331A (ja) 光学補償フィルムを含む水平電界方式の液晶表示装置及びその製造方法
CN107422524B (zh) 彩膜基板及显示面板
KR100623986B1 (ko) 액정 표시 장치
WO2017124611A1 (zh) 多区域垂直配向的显示面板及其像素结构
TWI261124B (en) Liquid crystal display and wide viewing angle crossed polarizer
CN100419545C (zh) 有源矩阵型液晶显示器
CN209103061U (zh) 阵列基板以及显示面板

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14768020

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15895323

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15895323

Country of ref document: EP

Kind code of ref document: A1