WO2016172833A1 - 一种液晶显示面板及装置 - Google Patents

一种液晶显示面板及装置 Download PDF

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Publication number
WO2016172833A1
WO2016172833A1 PCT/CN2015/077612 CN2015077612W WO2016172833A1 WO 2016172833 A1 WO2016172833 A1 WO 2016172833A1 CN 2015077612 W CN2015077612 W CN 2015077612W WO 2016172833 A1 WO2016172833 A1 WO 2016172833A1
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WIPO (PCT)
Prior art keywords
substrate
liquid crystal
common
branch portion
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/CN2015/077612
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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
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Wuhan China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd, Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/650,643 priority Critical patent/US9778519B2/en
Publication of WO2016172833A1 publication Critical patent/WO2016172833A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • 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
    • G02F1/133528—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
    • G02F1/133357—Planarisation layers
    • 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
    • G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
    • 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
    • G02F1/134381—Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates
    • 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
    • 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 displays, and in particular to a liquid crystal display panel and device.
  • the first liquid crystal display panel includes a first substrate 20, a second substrate 10, and a liquid crystal layer 30.
  • the first substrate 20 includes a first common electrode 21, and the second substrate 10 is disposed opposite to the first substrate 20.
  • the second substrate 10 includes a second common electrode 12 and a pixel electrode 11; and a liquid crystal layer 30 is located between the first substrate 20 and the second substrate 10; the initial orientation of the liquid crystal molecules is a vertical orientation.
  • the present invention provides a liquid crystal display panel, including:
  • a first substrate including a first common electrode and a flat layer
  • a second substrate disposed opposite to the first substrate, including a second common electrode and a pixel electrode;
  • the projection of the pixel electrode on the first substrate does not overlap with the pattern of the first common electrode on the first substrate, and the shape of the pixel electrode is spiral.
  • the first substrate is a color filter substrate
  • the second substrate is an array substrate
  • a first polarizer is further disposed outside the first substrate.
  • a second polarizer is further provided on the outer side of the second substrate.
  • the present invention also provides a liquid crystal display device, comprising: a backlight module and a liquid crystal display panel; wherein the liquid crystal display panel comprises:
  • a first substrate including a first common electrode
  • a second substrate disposed opposite to the first substrate, including a second common electrode and a pixel electrode;
  • the projection of the pixel electrode on the first substrate does not overlap with the pattern of the first common electrode on the first substrate.
  • the shape of the pixel electrode is spiral.
  • the pixel electrode includes a common portion and a plurality of branch portions, and one end of the branch portion is connected to the common portion.
  • an angle between the extension line of the common portion and the extension line of the branch portion is greater than 0 degrees and equal to or less than 90 degrees.
  • the pixel electrode includes a common portion including a first common portion and a second common portion, and a plurality of branch portions, the branch portion being located at the first common Between the portion and the second common portion, the branch portion includes a first branch portion and a second branch portion, one end of the first branch portion is connected to the first common portion, and the first branch portion is The other end is connected to one end of the second branch portion, and the other end of the second branch portion is connected to the second common portion.
  • an angle between an extension line of the first common portion and an extension line of the first branch portion is greater than 0 degrees and less than 90 degrees; and an extension line of the second common portion
  • the angle between the extension lines of the second branch portion is greater than 0 degrees and less than 90 degrees.
  • an angle between an extension line of the first branch portion and an extension line of the second branch portion is greater than 0 degrees and less than 90 degrees.
  • the pixel electrode includes a common portion including a first common portion and a second common portion, and a plurality of branch portions, the branch portion being located at the first common Between the portion and the second common portion, the branch portion includes a first branch portion, a second branch portion, a third branch portion, and a fourth branch portion, one end of the first branch portion and the first common portion The other end of the first branch portion is connected to one end of the second branch portion, and the other end of the second branch portion is connected to one end of the third branch portion, and the third branch portion is The other end is connected to one end of the fourth branch portion, and the other end of the fourth branch portion is connected to the second common portion.
  • an angle between an extension line of the first common portion and an extension line of the first branch portion is greater than 0 degrees and less than 90 degrees; and an extension line of the second common portion
  • the angle between the extension lines of the fourth branch portion is greater than 0 degrees and less than 90 degrees.
  • the first substrate is a color filter substrate
  • the second substrate is an array substrate
  • a first polarizer is further provided on the outer side of the first substrate.
  • a second polarizer is further provided outside the second substrate.
  • the liquid crystal display panel and device of the present invention can reduce the common electrode on the first substrate not facing the pixel electrode by removing the common electrode on the first substrate facing the pixel electrode, thereby reducing the pixel electrode and the first electrode
  • the vertical electric field formed by the facing portion of the common electrode enhances the horizontal electric field strength in the liquid crystal display panel; further, the driving voltage of the liquid crystal display panel is lowered, and the light efficiency is improved.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel of the prior art
  • FIG. 2 is a schematic diagram of electric field simulation when a voltage is applied to a liquid crystal display panel of the prior art
  • FIG. 3 is a schematic structural view of a liquid crystal display panel of the present invention.
  • FIG. 4 is a schematic diagram of a preferred electric field when a voltage is applied to a liquid crystal display panel of the present invention
  • FIG. 5 is a schematic structural view of a first type of pixel electrode of a liquid crystal display panel of the present invention.
  • FIG. 6 is a schematic structural view of a second pixel electrode of a liquid crystal display panel of the present invention.
  • FIG. 7 is a schematic structural view of a third pixel electrode of a liquid crystal display panel of the present invention.
  • FIG. 8 is a schematic structural view of a fourth pixel electrode of a liquid crystal display panel of the present invention.
  • FIG. 3 is a schematic structural diagram of a liquid crystal display panel according to the present invention.
  • the liquid crystal display panel of the present invention includes, as shown in FIG. 3, a first substrate 20 including a first common electrode 31, and a second substrate 10 disposed opposite the first substrate 20, including a second common electrode 12 and a pixel electrode. And a liquid crystal layer 30 between the first substrate 20 and the second substrate 10; a first polarizer 23 and an outer side of the first substrate 20 and the second substrate 10 may be respectively disposed The second polarizer 13; in order to increase the range of the horizontal electric field, the flat layer 22 may be disposed on the first substrate, and the area of the horizontal electric field is as shown by the broken line frame 103 in FIG.
  • the projection of the pixel electrode 11 on the first substrate 20 does not overlap with the pattern of the first common electrode 31 on the first substrate 20. That is, a portion of the first common electrode 31 that is opposite to the pixel electrode 11 is removed, and a portion of the first common electrode 31 that is not opposed to the pixel electrode 11 is retained.
  • the first substrate may be a color filter substrate, and the second substrate may be an array substrate.
  • the initial orientation of the liquid crystal molecules is a vertical orientation.
  • a voltage is applied, a horizontal electric field is generated between the first common electrode 31 and the pixel electrode 11 because it is not aligned; since there is no first common electrode 31 facing the pixel electrode 11, there is no occurrence
  • the vertical electric field is beneficial to the deflection of the liquid crystal molecules; the liquid crystal molecules can be deflected without requiring a high driving voltage, and the light efficiency is also improved.
  • the shape of the pixel electrode 11 is a spiral shape, that is, a spiral portion of a broken line in the drawing.
  • the shape of the first common electrode 31 is a portion other than the spiral pixel electrode 11, that is, a region other than the spiral pixel electrode in the drawing.
  • the pixel electrode 11 includes at least two pixel electrode pitches, and any two of the pixel electrode pitches are unequal.
  • the pitches of the pixel electrodes are not equal, the electric field strengths generated in the respective threads can be made different, so that more electric field directions can be obtained, which is advantageous for the liquid crystal molecules to deflect in more directions and expand the viewing angle.
  • the pixel electrode pitch is greater than or equal to 2 micrometers and less than or equal to 8 micrometers.
  • the pitch of the pixel electrode is too small, the electric field between the threads may interfere.
  • the pitch of the pixel electrode is too large, the electric field strength generated by each thread is insufficient to deflect the liquid crystal molecules.
  • the second common electrode 12 also includes at least two common electrode pitches, and any two of the common electrode pitches are unequal.
  • the number of pitches of the common electrode 12 is equal to the number of pitches of the pixel electrode 11, and the pitch of the common electrode is greater than or equal to 2 micrometers and less than or equal to 8 micrometers.
  • the pixel electrode 11 includes a common portion 40 and a plurality of branch portions 41, and one end of the branch portion 41 is connected to the common portion 40.
  • the driving voltage of the liquid crystal display panel can be lowered, and the light efficiency can be improved.
  • the shape of the first common electrode 31 is a portion other than the pixel electrode 11.
  • the angle between the extension line of the common portion 40 and the extension line of the branch portion 41 is greater than 0 degrees and less than or equal to 90 degrees, more preferably greater than 30 degrees and less than or equal to 60 degrees, and further preferably 45 degrees.
  • the pixel electrode 11 includes a common portion including a first common portion 51 and a second common portion 52, and a plurality of branch portions 53, the branch portion 53 being located Between the first common portion 51 and the second common portion 52.
  • the branch portion 53 is substantially a type, including a first branch portion 54 and a second branch portion 55, one end of the first branch portion 54 is connected to the first common portion 51, and the first branch portion 54 is The other end is connected to one end of the second branch portion 55 at an angle, and the other end of the second branch portion 55 is connected to the second common portion 52.
  • the shape of the first common electrode 31 is a portion other than the pixel electrode 11.
  • the angle between the extension line of the first common portion 51 and the extension line of the first branch portion 54 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees, and more preferably 45 degrees.
  • the angle between the extension line of the second common portion 52 and the extension line of the second branch portion 55 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees, and more preferably 45 degrees.
  • the pixel electrode 11 includes a common portion including a first common portion 61 and a second common portion 62, and a plurality of branch portions 63, the branch portion 63 being located Between the first common portion 61 and the second common portion 62, the branch portions 63 are substantially w-shaped in a longitudinal direction, which is equivalent to the structure in which two types are connected together in FIG.
  • the branch portion 63 includes a first branch portion 64, a second branch portion 65, a third branch portion 66, and a fourth branch portion 67, one end of the first branch portion 64 is connected to the first common portion 61, the first The other end of the branch portion 64 is connected to one end of the second branch portion 65, the other end of the second branch portion 65 is connected to one end of the third branch portion 66, and the other end of the third branch portion 66 is The other end of the fourth branch portion 67 is connected to the second common portion 62.
  • the shape of the first common electrode 31 is a portion other than the pixel electrode 11.
  • the angle between the extension line of the first common portion 61 and the extension line of the first branch portion 64 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees, and more preferably 45 degrees.
  • the angle between the extension line of the second common portion 62 and the extension line of the fourth branch portion 67 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees, and more preferably 45 degrees.
  • the angle between the extension line of the first branch portion 64 and the extension line of the second branch portion 65 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees.
  • the angle between the extension line of the second branch portion 65 and the extension line of the third branch portion 66 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees.
  • the angle between the extension line of the third branch portion 66 and the extension line of the fourth branch portion 67 is greater than 0 degrees and less than 90 degrees, preferably greater than 30 degrees and less than or equal to 60 degrees.
  • the liquid crystal display panel of the present invention by removing the portion of the common electrode on the first substrate that faces the pixel electrode, the portion of the common electrode on the first substrate that is not opposite to the pixel electrode is retained, and the pixel electrode can be reduced.
  • the vertical electric field formed by the facing portion of the first common electrode enhances the horizontal electric field intensity in the liquid crystal display panel; further, the driving voltage of the liquid crystal display panel is lowered, and the light efficiency is improved.
  • the present invention also provides a liquid crystal display device including a backlight module and a liquid crystal display panel.
  • the liquid crystal display panel includes:
  • the first substrate 20 includes a first common electrode 31;
  • a second substrate 10 disposed opposite to the first substrate 20, including a second common electrode 12 and a pixel electrode 11;
  • liquid crystal layer 30 between the first substrate 20 and the second substrate 10;
  • the projection of the pixel electrode 11 on the first substrate 20 does not overlap with the pattern of the first common electrode 31 on the first substrate 20.
  • the shape of the pixel electrode 11 is spiral.
  • the pixel electrode 11 includes a common portion 40 and a plurality of branch portions 41, and one end of the branch portion 41 is connected to the common portion 40.
  • the pixel electrode 11 includes a common portion and a plurality of branch portions 53, the common portion including a first common portion 51 and a second common portion 52 disposed opposite to each other, the branch portion 53 being located at the Between the first common portion 51 and the second common portion 52, the branch portion 53 includes a first branch portion 54 and a second branch portion 55, one end of the first branch portion 54 and the first common portion 51 is connected, the other end of the first branch portion 54 is connected to one end of the second branch portion 55, and the other end of the second branch portion 55 is connected to the second common portion 52.
  • the pixel electrode 11 includes a common portion and a plurality of branch portions 63, the common portion including a first common portion 61 and a second common portion 62 disposed opposite to each other, the branch portion 63 being located at the Between the first common portion 61 and the second common portion 62, the branch portion 63 includes a first branch portion 64, a second branch portion 65, a third branch portion 66, and a fourth branch portion 67, the first One end of the branch portion 64 is connected to the first common portion 61, the other end of the first branch portion 64 is connected to one end of the second branch portion 65, and the other end of the second branch portion 65 is One end of the third branch portion 66 is connected, the other end of the third branch portion 66 is connected to one end of the fourth branch portion 67, and the other end of the fourth branch portion 67 is connected to the second common portion 62. .
  • the liquid crystal display device of the present invention may include any of the liquid crystal display panels described above.
  • the liquid crystal display device of the present invention by removing the portion of the common electrode on the first substrate that faces the pixel electrode, the portion of the common electrode on the first substrate that is not opposite to the pixel electrode is retained, and the pixel electrode can be reduced.
  • the vertical electric field formed by the facing portion of the first common electrode enhances the horizontal electric field intensity in the liquid crystal display panel; further, the driving voltage of the liquid crystal display panel is lowered, and the light efficiency is improved.

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

Abstract

一种液晶显示面板及装置，所述显示面板包括：第一基板（20），包括第一公共电极（31）；第二基板（10），与所述第一基板（20）相对设置，包括第二公共电极（12）和像素电极（11）；液晶层（30），位于所述第一基板（20）和所述第二基板（10）之间；其中所述像素电极（11）在所述第一基板（20）上的投影与所述第一公共电极（31）在所述第一基板（20）上的图形不重叠。

Description

一种液晶显示面板及装置 技术领域
本发明涉及显示器领域，特别是涉及一种液晶显示面板及装置。
 背景技术
现有的液晶显示面板如图1所示，包括第一基板20、第二基板10、液晶层30；第一基板20包括第一公共电极21；第二基板10与第一基板20相对设置，第二基板10包括第二公共电极12和像素电极11；以及液晶层30位于所述第一基板20和所述第二基板10之间；液晶分子的初始取向为竖直取向。
在施加电压时，第一公共电极21与像素电极11不正对的部分，与像素电极11之间产生水平电场，如图2中虚线框102所示；但是第一公共电极21与像素电极11正对的部分，容易与像素电极11之间产生竖直电场，如图2中虚线框101所示，由于竖直电场的存在，不利于液晶分子的偏转；为了使得液晶分子偏转，需要较高的驱动电压，同时也降低了光效率。
故，有必要提供一种液晶显示面板及装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板及装置，以解决现有的液晶显示面板需要较高的驱动电压以及光效率较低的技术问题。
技术解决方案
为解决上述问题，本发明提供一种液晶显示面板，其包括：
第一基板，包括第一公共电极和平坦层；
第二基板，与所述第一基板相对设置，包括第二公共电极和像素电极；以及
液晶层，位于所述第一基板和所述第二基板之间；
其中所述像素电极在所述第一基板上的投影与所述第一公共电极在所述第一基板上的图形不重叠，所述像素电极的形状为螺旋状。
在本发明的液晶显示面板中，所述第一基板为彩膜基板，所述第二基板为阵列基板。
在本发明的液晶显示面板中，在所述第一基板的外侧还设置有第一偏光片。
在本发明的液晶显示面板中，在所述第二基板的外侧还设置有第二偏光片。
本发明还提供一种液晶显示装置，其包括：背光模块及液晶显示面板；其中所述液晶显示面板包括：
第一基板，包括第一公共电极；
第二基板，与所述第一基板相对设置，包括第二公共电极和像素电极；以及
液晶层，位于所述第一基板和所述第二基板之间；
其中所述像素电极在所述第一基板上的投影与所述第一公共电极在所述第一基板上的图形不重叠。
在本发明的液晶显示装置中，所述像素电极的形状为螺旋状。
在本发明的液晶显示装置中，所述像素电极包括公共部和多个分支部，所述分支部的一端与所述公共部连接。
在本发明的液晶显示装置中，所述公共部的延长线与所述分支部的延长线之间的角度大于0度小于等于90度。
在本发明的液晶显示装置中，所述像素电极包括公共部和多个分支部，所述公共部包括相对设置的第一公共部和第二公共部，所述分支部位于所述第一公共部和所述第二公共部之间，所述分支部包括第一分支部和第二分支部，所述第一分支部的一端与所述第一公共部连接，所述第一分支部的另一端与所述第二分支部的一端连接，所述第二分支部的另一端与所述第二公共部连接。
在本发明的液晶显示装置中，所述第一公共部的延长线与所述第一分支部的延长线之间的角度大于0度小于90度；所述第二公共部的延长线与所述第二分支部的延长线之间的角度大于0度小于90度。
在本发明的液晶显示装置中，所述第一分支部的延长线与所述第二分支部的延长线之间的角度大于0度小于90度。
在本发明的液晶显示装置中，所述像素电极包括公共部和多个分支部，所述公共部包括相对设置的第一公共部和第二公共部，所述分支部位于所述第一公共部和所述第二公共部之间，所述分支部包括第一分支部、第二分支部、第三分支部和第四分支部，所述第一分支部的一端与所述第一公共部连接，所述第一分支部的另一端与所述第二分支部的一端连接，所述第二分支部的另一端与所述第三分支部的一端连接，所述第三分支部的另一端与所述第四分支部的一端连接，所述第四分支部的另一端与所述第二公共部连接。
在本发明的液晶显示装置中，所述第一公共部的延长线与所述第一分支部的延长线之间的角度大于0度小于90度；所述第二公共部的延长线与所述第四分支部的延长线之间的角度大于0度小于90度。
在本发明的液晶显示装置中，所述第一基板为彩膜基板，所述第二基板为阵列基板。
在本发明的液晶显示装置中，在所述第一基板的外侧还设置有第一偏光片。
在本发明的液晶显示装置中，在所述第二基板的外侧还设置有第二偏光片。
 有益效果
本发明的液晶显示面板及装置，通过去除与像素电极正对的第一基板上的公共电极，保留了未与像素电极正对的第一基板上的公共电极，可以减少由于像素电极与第一公共电极的正对部分所形成的竖直电场，增强了液晶显示面板内的水平电场强度；进一步，降低液晶显示面板的驱动电压，提高了光效率。
 附图说明
图1为现有技术的液晶显示面板的结构示意图；
图2为现有技术的液晶显示面板施加电压时的电场模拟图；
图3为本发明液晶显示面板的结构示意图；
图4为本发明的液晶显示面板施加电压时的优选电场模拟图；
图5为本发明液晶显示面板的第一种像素电极的结构示意图；
图6为本发明液晶显示面板的第二种像素电极的结构示意图；
图7为本发明液晶显示面板的第三种像素电极的结构示意图；
图8为本发明液晶显示面板的第四种像素电极的结构示意图。
 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。
请参照图3，图3为本发明液晶显示面板的结构示意图。
本发明的液晶显示面板包括：如图3所示，包括第一基板20，其包括第一公共电极31；与第一基板20相对设置的第二基板10，包括第二公共电极12和像素电极11；以及液晶层30，位于所述第一基板20和所述第二基板10之间；在所述第一基板20和所述第二基板10的外侧可分别设置有第一偏光片23和第二偏光片13；为了增加水平电场的范围，还可以在第一基板上设置平坦层22，此时水平电场的区域如图4中虚线框103所示。
其中所述像素电极11在所述第一基板20上的投影与所述第一公共电极31在所述第一基板20上的图形不重叠。即去除了所述第一公共电极31中与所述像素电极11正对的部分，保留了所述第一公共电极31中不与所述像素电极11正对的部分。所述第一基板可为彩膜基板，所述第二基板可为阵列基板。
在不施加电压时，液晶分子的初始取向为竖直取向。在施加电压时，所述第一公共电极31与所述像素电极11之间由于不正对，产生水平电场；由于不存在与所述像素电极11正对的第一公共电极31，因而不会产生竖直电场，从而利于液晶分子的偏转；不需要较高的驱动电压就可以使液晶分子偏转，同时也提高了光效率。
进一步地，如图5所示，所述像素电极11的形状为螺旋状，即图中虚线的螺旋状部分。此时，所述第一公共电极31的形状为与所述螺旋状的像素电极11相对应以外的部分，即图中螺旋状像素电极以外的区域。采用上述像素电极结构，能够产生更多方向的电场，从而使液晶分子具有多种偏转角度，有利于实现多畴显示以及扩大液晶显示面板的视角。
进一步地，所述像素电极11包括至少两个像素电极螺距，任意两个所述像素电极螺距各不相等。当所述像素电极螺距各不相等时，能够使得各螺纹内产生的电场强度不同，从而能够获得较多的电场方向，有利于液晶分子向更多方向偏转，扩大了视角。
进一步地，所述像素电极螺距大于等于2微米小于等于8微米。当像素电极螺距过小时，各螺纹之间的电场会出现干扰，当像素电极螺距过大时，各螺纹产生的电场强度不足，不能使得液晶分子偏转。
优选地，所述第二公共电极12也包括至少两个公共电极螺距，任意两个所述公共电极螺距各不相等。所述公共电极12螺距的个数和所述像素电极11螺距的个数相等，所述公共电极螺距大于等于2微米小于等于8微米。
进一步地，如图6所示，所述像素电极11包括公共部40和多个分支部41，所述分支部41的一端与所述公共部40连接。采用这种像素电极结构，可以降低液晶显示面板的驱动电压，提高光效率。此时，所述第一公共电极31的形状为与所述像素电极11相对应以外的部分。优选地，所述公共部40的延长线与所述分支部41的延长线之间的角度大于0度小于等于90度，较优选大于30度小于等于60度，进一步优选为45度。
进一步地，如图7所示，所述像素电极11包括公共部和多个分支部53，所述公共部包括相对设置的第一公共部51和第二公共部52，所述分支部53位于所述第一公共部51和所述第二公共部52之间。所述分支部53大体为＞型，包括第一分支部54和第二分支部55，所述第一分支部54的一端与所述第一公共部51连接，所述第一分支部54的另一端与所述第二分支部55的一端连接并呈一定角度，所述第二分支部55的另一端与所述第二公共部52连接。采用这种像素电极结构，比图6中的像素电极能够产生更多方向的电场，更利于形成多畴显示，较好地扩大液晶显示面板的视角。此时，所述第一公共电极31的形状为与所述像素电极11相对应以外的部分。所述第一公共部51的延长线与所述第一分支部54的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度，进一步优选为45度。所述第二公共部52的延长线与所述第二分支部55的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度，进一步优选为45度。
进一步地，如图8所示，所述像素电极11包括公共部和多个分支部63，所述公共部包括相对设置的第一公共部61和第二公共部62，所述分支部63位于所述第一公共部61和所述第二公共部62之间，所述分支部63大致成纵向排列的w型，相当于图7中的两个＞型连接在一起的结构，所述分支部63包括第一分支部64、第二分支部65、第三分支部66和第四分支部67，所述第一分支部64的一端与所述第一公共部61连接，所述第一分支部64的另一端与所述第二分支部65的一端连接，所述第二分支部65的另一端与所述第三分支部66的一端连接，所述第三分支部66的另一端与所述第四分支部67的一端连接，所述第四分支部67的另一端与所述第二公共部62连接。采用这种像素电极结构，可比图7中的像素电极产生更多方向的电场，更利于形成多畴显示，更好地扩大液晶显示面板的视角。此时，所述第一公共电极31的形状为与所述像素电极11相对应以外的部分。所述第一公共部61的延长线与所述第一分支部64的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度，进一步优选为45度。所述第二公共部62的延长线与所述第四分支部67的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度，进一步优选为45度。所述第一分支部64的延长线与所述第二分支部65的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度。所述第二分支部65的延长线与所述第三分支部66的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度。所述第三分支部66的延长线与所述第四分支部67的延长线之间的角度大于0度小于90度，优选为大于30度小于等于60度。当像素电极具有上述角度时，能够更好地增大视角，进一步提高显示效果。
本发明的液晶显示面板，通过去除了第一基板上的公共电极中与像素电极正对的部分，保留了第一基板上的公共电极中未与像素电极正对的部分，可以减少由于像素电极与第一公共电极的正对部分所形成的竖直电场，增强了液晶显示面板内的水平电场强度；进一步，降低液晶显示面板的驱动电压，提高了光效率。
本发明还提供一种液晶显示装置，其包括背光模块及液晶显示面板；结合图3，其中所述液晶显示面板包括：
第一基板20，包括第一公共电极31；
第二基板10，与所述第一基板20相对设置，包括第二公共电极12和像素电极11；以及
液晶层30，位于所述第一基板20和所述第二基板10之间；
其中所述像素电极11在所述第一基板20上的投影与所述第一公共电极31在所述第一基板20上的图形不重叠。
优选地，结合图5，所述像素电极11的形状为螺旋状。
优选地，结合图6，所述像素电极11包括公共部40和多个分支部41，所述分支部41的一端与所述公共部40连接。
优选地，结合图7，所述像素电极11包括公共部和多个分支部53，所述公共部包括相对设置的第一公共部51和第二公共部52，所述分支部53位于所述第一公共部51和所述第二公共部52之间，所述分支部53包括第一分支部54和第二分支部55，所述第一分支部54的一端与所述第一公共部51连接，所述第一分支部54的另一端与所述第二分支部55的一端连接，所述第二分支部的55另一端与所述第二公共部52连接。
优选地，结合图8，所述像素电极11包括公共部和多个分支部63，所述公共部包括相对设置的第一公共部61和第二公共部62，所述分支部63位于所述第一公共部61和所述第二公共部62之间，所述分支部63包括第一分支部64、第二分支部65、第三分支部66和第四分支部67，所述第一分支部64的一端与所述第一公共部61连接，所述第一分支部64的另一端与所述第二分支部65的一端连接，所述第二分支部65的另一端与所述第三分支部66的一端连接，所述第三分支部66的另一端与所述第四分支部67的一端连接，所述第四分支部67的另一端与所述第二公共部62连接。
本发明的液晶显示装置可包括上述任何一种液晶显示面板。
本发明的液晶显示装置，通过去除了第一基板上的公共电极中与像素电极正对的部分，保留了第一基板上的公共电极中未与像素电极正对的部分，可以减少由于像素电极与第一公共电极的正对部分所形成的竖直电场，增强了液晶显示面板内的水平电场强度；进一步，降低液晶显示面板的驱动电压，提高了光效率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (16)

  1. 一种液晶显示面板，其包括：
    第一基板，包括第一公共电极和平坦层；
    第二基板，与所述第一基板相对设置，包括第二公共电极和像素电极；以及
    液晶层，位于所述第一基板和所述第二基板之间；
    其中所述像素电极在所述第一基板上的投影与所述第一公共电极在所述第一基板上的图形不重叠；所述像素电极的形状为螺旋状。
  2. 根据权利要求1所述的液晶显示面板，其中所述第一基板为彩膜基板，所述第二基板为阵列基板。
  3. 根据权利要求1所述的液晶显示面板，其中在所述第一基板的外侧还设置有第一偏光片。
  4. 根据权利要求1所述的液晶显示面板，其中在所述第二基板的外侧还设置有第二偏光片。
  5. 一种液晶显示装置，其包括：
    背光模块及液晶显示面板；
    其中所述液晶显示面板包括：
    第一基板，包括第一公共电极；
    第二基板，与所述第一基板相对设置，包括第二公共电极和像素电极；以及
    液晶层，位于所述第一基板和所述第二基板之间；
    其中所述像素电极在所述第一基板上的投影与所述第一公共电极在所述第一基板上的图形不重叠。
  6. 根据权利要求5所述的液晶显示装置，其中所述像素电极的形状为螺旋状。
  7. 根据权利要求5所述的液晶显示装置，其中所述像素电极包括公共部和多个分支部，所述分支部的一端与所述公共部连接。
  8. 根据权利要求7所述的液晶显示装置，其中所述公共部的延长线与所述分支部的延长线之间的角度大于0度小于等于90度。
  9. 根据权利要求5所述的液晶显示面板，其中所述像素电极包括公共部和多个分支部，所述公共部包括相对设置的第一公共部和第二公共部，所述分支部位于所述第一公共部和所述第二公共部之间，所述分支部包括第一分支部和第二分支部，所述第一分支部的一端与所述第一公共部连接，所述第一分支部的另一端与所述第二分支部的一端连接，所述第二分支部的另一端与所述第二公共部连接。
  10. 根据权利要求9所述的液晶显示装置，其中所述第一公共部的延长线与所述第一分支部的延长线之间的角度大于0度小于90度；所述第二公共部的延长线与所述第二分支部的延长线之间的角度大于0度小于90度。
  11. 根据权利要求9所述的液晶显示装置，其中所述第一分支部的延长线与所述第二分支部的延长线之间的角度大于0度小于90度。
  12. 根据权利要求5所述的液晶显示装置，其中
    所述像素电极包括公共部和多个分支部，所述公共部包括相对设置的第一公共部和第二公共部，所述分支部位于所述第一公共部和所述第二公共部之间，所述分支部包括第一分支部、第二分支部、第三分支部和第四分支部，所述第一分支部的一端与所述第一公共部连接，所述第一分支部的另一端与所述第二分支部的一端连接，所述第二分支部的另一端与所述第三分支部的一端连接，所述第三分支部的另一端与所述第四分支部的一端连接，所述第四分支部的另一端与所述第二公共部连接。
  13. 根据权利要求12所述的液晶显示装置，其中所述第一公共部的延长线与所述第一分支部的延长线之间的角度大于0度小于90度；所述第二公共部的延长线与所述第四分支部的延长线之间的角度大于0度小于90度。
  14. 根据权利要求5所述的液晶显示装置，其中所述第一基板为彩膜基板，所述第二基板为阵列基板。
  15. 根据权利要求5所述的液晶显示装置，其中在所述第一基板的外侧还设置有第一偏光片。
  16. 根据权利要求5所述的液晶显示装置，其中在所述第二基板的外侧还设置有第二偏光片。
PCT/CN2015/077612 2015-04-27 2015-04-28 一种液晶显示面板及装置 Ceased WO2016172833A1 (zh)

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