WO2014186998A1 - 像素结构、显示面板及液晶显示器 - Google Patents

像素结构、显示面板及液晶显示器 Download PDF

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Publication number
WO2014186998A1
WO2014186998A1 PCT/CN2013/077762 CN2013077762W WO2014186998A1 WO 2014186998 A1 WO2014186998 A1 WO 2014186998A1 CN 2013077762 W CN2013077762 W CN 2013077762W WO 2014186998 A1 WO2014186998 A1 WO 2014186998A1
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Prior art keywords
pixel
sub
region
pixels
area
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French (fr)
Inventor
徐亮
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/980,602 priority Critical patent/US9158171B2/en
Publication of WO2014186998A1 publication Critical patent/WO2014186998A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/136—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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/18—Longitudinally sectional layer of three or more sections

Definitions

  • the present invention relates to the field of liquid crystal display; and more particularly, to a pixel structure, a display panel, and a liquid crystal display.
  • liquid crystal display LCD
  • plasma display PDP
  • OLED Organic Light-Emitting Diode
  • liquid crystal display modes such as TN: Twisted Nematic and STN: Super Twisted Nematic appear to have problems such as low contrast and poor viewing angle.
  • IPS In Plan Switch
  • VA Vertical Alignment
  • the liquid crystal display is mainly composed of upper and lower substrates 11, 12, and a negative liquid crystal 14 embedded between the two substrates like a sandwich biscuit.
  • a transparent conductive layer 13 ITO: indium tin oxide
  • the negative liquid crystal interposed between the two transparent conductive layers is a liquid crystal whose dielectric constant of the long axis of the liquid crystal molecule is smaller than the dielectric constant in the direction perpendicular to the long axis of the liquid crystal molecule.
  • the liquid crystal molecules When a vertical electric field acts on the negative liquid crystal 14, the liquid crystal molecules have a small dielectric constant, so the liquid crystal has a small dielectric constant. The molecules will deflect in a specific direction under the action of an electric field, and finally the long axis of the liquid crystal molecules is aligned perpendicular to the direction of the electric field. Compared with the in-surface switch display mode, the vertical alignment display mode does not require alignment during production.
  • Couple capacitance method also known as CC method
  • dual TFT driving method also known as TT method
  • charge sharing method charge sharing
  • Each method has its own advantages and disadvantages, but they have one thing in common: they all divide the original sub-pixel (Sub-Pixel) into two parts, one of which is called the Main area and the other is called the Sub area. Usually, the Main area is smaller than the Sub area.
  • This design is generally referred to as the 8-domain design.
  • the bright spot on the display panel is also called the display panel bright spot, which is a physical damage of the display panel, mainly due to the internal reflector of the display panel of the bright spot being pressed by external force or slightly deformed by heat.
  • the display panel bright spot is a physical damage of the display panel, mainly due to the internal reflector of the display panel of the bright spot being pressed by external force or slightly deformed by heat.
  • the highlights caused by the pixel design based on 8 Domain also have their own characteristics: one case is that all sub-pixels are bright; one case is that the main area of the sub-pixel is bright; in one case, the Sub area of the sub-pixel is bright;
  • an object of the present invention is to provide a pixel structure including a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in a row, and the first sub-pixel
  • the pixel, the second sub-pixel, and the third sub-pixel are each divided into a first region and a second region, wherein the first regions of the first sub-pixel and the third sub-pixel are both located above the second region, The first region of the second sub-pixel is located below the second region. Further, the area occupied by the first area in the sub-pixel is smaller than the second area.
  • Another object of the present invention is to provide a display panel including a plurality of first pixels and a plurality of second pixels arranged in an array, wherein the first pixels and the second pixels each include a first sub-row arranged in a row.
  • a pixel, a second sub-pixel, and a third sub-pixel, and the first sub-pixel, the second sub-pixel, and the third sub-pixel are each divided into a first region and a second region; in the first pixel, a first sub-pixel and a third sub-pixel are located above the second region, and a first region of the second sub-pixel is located below the second region; in the second pixel, the first sub-pixel and the third The first region of the sub-pixel is located below the second region, and the first region of the second sub-pixel is located above the second region.
  • the first pixel and the second pixel are alternately arranged, and in each column of pixels, the pixels are the first pixel or the second pixel. Further, the area occupied by the first area in the sub-pixel is smaller than the second area. Further, the display panel drives each sub-pixel through a liquid crystal driving module, and displays an image through a display light source provided by the backlight module.
  • Another object of the present invention is to provide a liquid crystal display including a liquid crystal driving module, a backlight module, and a display panel, wherein the liquid crystal driving module drives and controls the display panel, and the backlight module provides a display light source to the a display panel, the display panel includes a plurality of first pixels and a plurality of second pixels arranged in an array, wherein the first pixel and the second pixel each include a first sub-pixel and a second sub-pixel sequentially arranged in a row And a third sub-pixel, and the first sub-pixel, the second sub-pixel, and the third sub-pixel are each divided into a first region and a second region; in the first pixel, the first sub-pixel and the third a first region of the sub-pixel is located above the second region, and a first region of the second sub-pixel is located below the second region; in the second pixel, the first region of the first sub-pixel and the third sub-pixel Each is located below the second zone, and the first zone of the second sub-pixel is
  • the liquid crystal driving module includes: a gate driver, which is connected to each sub-pixel through a plurality of scanning lines extending in a row direction, sequentially outputs scanning signals to the respective scanning lines, and the data driver passes through a plurality of columns toward the column direction An extended data line connects each sub-pixel to provide a data signal for each sub-pixel. And a timing controller that connects and controls the gate driver and the data driver.
  • the pixel structure, the display panel and the liquid crystal display of the present invention by rearranging the sub-pixels in the pixels of the display panel, so that the first regions of any two adjacent sub-pixels are not adjacent, avoiding the formation of the two first regions Points, and thus avoiding the formation of bright spots, and at the time of low gray scale display, since the first area of each sub-pixel is arranged in a "pin" shape, the spatial color mixing effect of each first area is better, thereby improving the color mixing of RGB three colors. effect.
  • Figure la shows a schematic diagram of the prior art vertical alignment display mode in a state where no voltage is applied.
  • Figure lb shows a schematic diagram of a prior art vertical alignment display mode plus voltage state.
  • Figure 2 shows a schematic diagram of two adjacent broken bright spots of the prior art becoming bright spots.
  • FIG. 3 shows a schematic diagram of a sub-pixel arrangement of a display panel in accordance with an embodiment of the present invention.
  • FIG. 4 shows an arrangement diagram of sub-pixels of a first pixel according to an embodiment of the present invention.
  • FIG. 5 shows an arrangement diagram of sub-pixels of a second pixel according to an embodiment of the present invention.
  • FIG. 6 shows a schematic diagram of a liquid crystal display according to an embodiment of the present invention.
  • Figure 7 shows a schematic diagram of a gate driver and a data driver driving sub-pixels in accordance with an embodiment of the present invention.
  • FIG. 3 illustrates a schematic diagram of pixel arrangement of a display panel in accordance with an embodiment of the present invention.
  • FIG. 4 illustrates an arrangement diagram of sub-pixels of a first pixel in accordance with an embodiment of the present invention.
  • a display panel according to an embodiment of the present invention includes a plurality of first pixels arranged in an array 31 and a plurality of second pixels 32, the first pixel 31 and the second pixel 32 are two kinds of pixels having different design specifications, which will be described in detail below. Specifically, taking the first pixel 31 as an example, referring to FIG.
  • the first pixel 31 includes a first sub-pixel 311, a second sub-pixel 312, and a third sub-pixel 313 arranged in a row, based on 8 domains (8 Domain)
  • the first sub-pixel 311, the second sub-pixel 312, and the third sub-pixel 313 are both divided into a first area A and a second area 8.
  • the first area A is the Main area
  • the second area B is the Sub area
  • the sizes of the first area A and the second area B are not equal.
  • the first area A is occupied by the sub-pixels.
  • the area is smaller than the second area B.
  • the first area A of the first sub-pixel 311 and the first area A of the second sub-pixel 312 in the first pixel 31 are both bright, in order to make the two adjacent sub-pixels One area A is not adjacent to avoid forming a two-point point, the first area A of the first sub-pixel 311 is located above the second area B, and the first area A of the second sub-pixel 312 is located below the second area B. Similarly, in order to prevent the first area A of the second sub-pixel 312 from forming a 2 point with the first area A of the adjacent third sub-pixel 313, the first area A of the third sub-pixel 313 is located in the second area B.
  • the first area A of the three sub-pixels presents a "pin"-shaped inverted pattern.
  • the first sub-pixel 311, the second sub-pixel 312, and the third sub-pixel 313 are any one of three primary color (RGB) sub-pixels.
  • RGB primary color
  • the first sub-pixel 311 may be a red sub-pixel
  • the second sub-pixel 312 may be a green sub-pixel
  • the third sub-pixel 313 may be a blue (Blue). ) Subpixel.
  • the second pixel 32 referring to FIG.
  • the second pixel 32 also includes a first sub-pixel 321, a second sub-pixel 322, and a third sub-pixel 323 arranged in a row, based on an 8-domain design.
  • One sub-pixel 321, second sub-pixel 322, and third sub-pixel 323 are also divided into a first area A and a second area 8.
  • the first area A is the Main area
  • the second area B is the Sub area
  • the sizes of the first area A and the second area B are not equal.
  • the first area A is occupied by the sub-pixels.
  • the area is smaller than the second area B, but the invention is not limited thereto, and the first area A may be larger than the second area B.
  • the first area A of the first sub-pixel 321 and the first area A of the second sub-pixel 322 of the second pixel 32 are both bright, in order to make the two adjacent sub-pixels of the second pixel 32
  • One area A is not adjacent to avoid forming a two-point point.
  • the first area A of the first sub-pixel 321 is located below the second area B, and the first area A of the second sub-pixel 322 is located. Above the second zone B.
  • the first area A of the third sub-pixel 323 is located below the second area B, that is, in the second pixel 32, the first area A of the three sub-pixels presents a "pin" shape pattern.
  • the first sub-pixel 321, the second sub-pixel 322, and the third sub-pixel 323 are any one of three primary color (RGB) sub-pixels, but the colors of the three are different, for example,
  • the first sub-pixel 321 may be a red sub-pixel
  • the second sub-pixel 322 may be a green sub-pixel
  • the third sub-pixel 323 may be a blue sub-pixel.
  • FIG. 3, FIG. 4 and FIG. 5 in the plurality of first pixels 31 and the plurality of second pixels 32 arranged in the array, in order to avoid two adjacent pixels, two adjacent sub-pixels
  • the first area A of the pixel forms a two-point point.
  • FIG. 6 shows a schematic diagram of a liquid crystal display according to an embodiment of the present invention.
  • a liquid crystal display according to an embodiment of the present invention includes a backlight module 40, a display panel 30, and a liquid crystal driving module 50.
  • the display panel 30 includes the above-mentioned pixel arrangement structure, the liquid crystal drive module 50 drives the respective sub-pixels on the display panel 30, and the backlight module 40 provides a display light source to the display panel 30, thereby causing the display panel 30 to display an image.
  • the liquid crystal driving module 50 includes a gate driver 51 and a data driver (or source driver) 52 and a timing controller 53.
  • the data driver 52 can connect the respective sub-pixels through a plurality of data lines extending in the direction of the Row to provide data signals (ie, pixel voltages) for the respective sub-pixels; the gate driver 51 can extend through a plurality of columns (Column)
  • the scan lines are connected to the respective sub-pixels, and the scan signals are sequentially supplied to the respective scan lines, and the scan lines and the data lines are alternately arranged.
  • the timing controller 53 controls the center of the operation timing of the entire liquid crystal display. With the timing of each frame display, the gate driver 52 is set to be activated, and the video signal input by the interface is converted into a data signal format used by the data driver 52, and transmitted to the data signal form.
  • the control data driver 52 supplies data signals to the row of sub-pixels through the data lines.
  • the backlight module 40 can be a direct-lit backlight module or a side-in backlight module.
  • Figure 7 shows a schematic diagram of a gate driver and a data driver driving sub-pixels in accordance with an embodiment of the present invention.
  • FIG. 7 shows a schematic diagram of a gate driver and a data driver driving sub-pixels in accordance with an embodiment of the present invention.
  • the driving of a part of the sub-pixels of one row of sub-pixels in the display panel is shown in FIG. It should be understood that the driving of the other sub-pixels in the display panel is the same as the driving shown in FIG. Referring to FIG.
  • each of the first thin film fields connected to the main scanning line MG The gate of the effect transistor (TFT) 71 is turned on, at which point the source of each of the first thin film field effect transistors (TFTs) 71 connected to the data line D receives the data signal (ie, the pixel voltage) supplied from the data driver, and then Providing data signals to the first area A and the second area B of each sub-pixel, that is, charging each sub-pixel, but the charging voltages received by the first area A and the second area B of each sub-pixel are not the same;
  • the pole driver turns off the main scanning line MG and supplies a scanning signal to the scanning line SG, the gates of the respective second thin film field effect transistors (TFTs) 72 connected from the scanning lines SG are turned on, at this moment, the respective second films
  • the voltages are equal, and the charging of each sub-pixel is completed.
  • the first regions of any two adjacent sub-pixels are not adjacent, and the two first regions are prevented from forming a two-point point, thereby avoiding the formation of bright spots and being low at the same time.
  • the gray scale is displayed, since the first area of each sub-pixel is arranged in a "pin" shape, the spatial color mixing effect of each first area is better, thereby improving the color mixing effect of RGB three colors.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种像素结构、显示面板及液晶显示器。显示面板的像素结构包括以行依次排列的第一子像素（311）、第二子像素（312）和第三子像素（313），并且第一子像素（311）、第二子像素（312）和第三子像素（313）均被分为第一区和第二区，第一子像素（311）和第三子像素（313）的第一区均位于第二区的上方，第二子像素（312）的第一区位于第二区的下方。这样，通过重新排布显示面板的像素中的子像素，使得任意两个相邻子像素的第一区不相邻，避免两个第一区形成2连点，进而避免形成亮点，同时所述显示面板在低灰阶显示时，由于各个子像素的第一区呈"品"字形排布，使得各个第一区的空间混色效果较好，进而改善RGB三色的混色效果。

Description

说 明 书 像素结构、 显示面板及液晶显示器 技术领域
本发明涉及液晶显示领域； 更具体地讲， 涉及一种像素结构、 显示面板及 液晶显示器。
背景技术
随着信息社会的发展， 人们对显示器的需求得到了快速的增长。 为了满足 这种需求， 出现了几种平板显示器， 例如： 液晶显示器 （LCD: Liquid Crystal Display), 等离子体显示器 (PDP: Plasma Display Panel ) 以及 OLED (Organic Light-Emitting Diode, 有机发光二极管） 显示器， 都得到了迅猛的发展。 在平 板显示器中， 液晶显示器由于其重量低、 体积小、 能耗低的优点， 正在得到越 来越广泛的使用。
在液晶显示器中， 最初出现的扭曲向列型 （TN: Twisted Nematic ) , 超扭 曲向列型（STN: Super Twisted Nematic)等液晶显示模式存在对比度低、 视角 差等问题。 随着人们生活水平的提高， 对液晶显示器的要求也越来越高， 因此 以面内开关显示模式（IPS: In Plan Switch )、 垂直配向显示模式（VA: Vertical Alignment) 等广视角显示技术得到了飞跃的发展。 对于面内开关显示模式而言， 其具有非常好的广视角显示效果， 但是为了 实现较好的面内开关显示模式的显示效果， 在其生产过程中， 对于摩擦工序的 要求也就非常地高， 这在很大程度上造成其摩擦的工艺冗余度较小。在大规模 生产过程中， 极易出现相关的问题。
对于垂直配向显示模式而言， 如图 la、 lb所示， 液晶显示器主要由上、 下两基板 11、 12， 以及类似于夹心饼干一样嵌入在两个基板之间的负性液晶 14组成。 在上、 下两基板的内侧均有透明导电层 13 (ITO: 氧化铟锡）， 从而 可以形成垂直电场。 在两层透明导电层之间嵌入的负性液晶， 是一种液晶分子 长轴的介电常数小于垂直于液晶分子长轴的方向上的介电常数的液晶。在没有 垂直电场作用在负性液晶 14上时， 液晶分子长轴垂直于基板表面， 当有垂直 电场作用在负性液晶 14上时， 由于液晶分子长轴的介电常数较小， 所以液晶 分子在电场作用下会发生特定方向的偏转， 最终液晶分子长轴垂直于电场方向 排列。 同面内开关显示模式相比， 垂直配向显示模式在生产过程中不需要配向
(rubbing) 工艺， 所以大大提高了其在大规模生产上的优势。
但是相对于 IPS模式，垂直配向显示模式在大视角的情况下，其色差 (Color shift) 会变的严重。 针对这个问题， 行业内提出了各种解决方法， 例如： 耦合 电容法 （也被称为 CC方法）、 双 TFT驱动法 （也被称为 TT法）、 电荷分享法 ( Charge Sharing) 等。 每种方法都有各自的优缺点， 但是他们有一个共同点： 都是将原来的一个子像素（Sub-Pixel)分为两个部分， 其中， 一部分称为 Main 区， 另一部分称为 Sub区， 通常 Main区小于 Sub区。 这种设计一般都统称为 8畴 （8 Domain) 设计。 显示面板上的亮点也被称为显示面板亮斑， 是显示面板的一种物理损伤， 主要是由于亮斑部位的显示面板内部反光板受到外力压迫或者受热产生轻微 变形所致。 随着消费者要求的提高， 一般都要求大于 1/2个子像素的亮点是不 能有的，但是实际生产过程中，这种亮点是无法避免的，虽然可以修复成暗点， 但也会消耗较多产能。
基于 8 Domain的像素设计导致的亮点也有自身的一些特点： 一种情况是 全部子像素都亮； 一种情况是子像素的 Main区亮； 一种情况是子像素的 Sub 区亮；
当只是子像素的 Main区亮时， 由于其小于 1/2个子像素， 只是一个碎亮 点， 不影响显示， 可以看作不是亮点。 如图 2所示， 当两个相邻的子像素的 Main区都亮时， 虽然单看每一个子像素的 Main区都不是亮点， 但是由于两个 Main区连在一起， 就形成了水平方向上大于 1/2子像素的亮点， 这种情况被称 为 2连点。 发明内容 为了解决上述现有技术存在的问题， 本发明的目的在于提供一种像素结 构， 包括以行依次排列的第一子像素、 第二子像素和第三子像素， 并且所述第 一子像素、 第二子像素和第三子像素均被分为第一区和第二区， 其中， 所述第 一子像素和第三子像素的第一区均位于第二区的上方，所述第二子像素的第一 区位于第二区的下方。 进一歩地， 所述第一区在子像素中所占面积小于所述第二区。 本发明的另一目的还在于提供一种显示面板， 包括阵列排布的多个第一像 素和多个第二像素， 所述第一像素和第二像素均包括以行依次排列的第一子像 素、 第二子像素和第三子像素， 并且所述第一子像素、 第二子像素和第三子像 素均被分为第一区和第二区； 在所述第一像素中， 第一子像素和第三子像素的 第一区均位于第二区的上方， 第二子像素的第一区位于第二区的下方； 在所述 第二像素中， 第一子像素和第三子像素的第一区均位于第二区的下方， 第二子 像素的第一区位于第二区的上方。 进一歩地， 在每一行像素中， 所述第一像素和第二像素交替排列， 在每一 列像素中， 像素均为所述第一像素或所述第二像素。 进一歩地， 所述第一区在子像素中所占面积小于所述第二区。 进一歩地， 所述显示面板是通过液晶驱动模组来驱动各个子像素， 并且通 过背光模组提供的显示光源来显示影像。 本发明的另一目的还在于提供一种液晶显示器， 包括液晶驱动模组、 背光 模组和显示面板， 所述液晶驱动模组驱动控制所述显示面板， 所述背光模组提 供显示光源给所述显示面板， 所述显示面板包括阵列排布的多个第一像素和多 个第二像素， 所述第一像素和第二像素均包括以行依次排列的第一子像素、第 二子像素和第三子像素， 并且所述第一子像素、 第二子像素和第三子像素均被 分为第一区和第二区； 在所述第一像素中， 第一子像素和第三子像素的第一区 均位于第二区的上方， 第二子像素的第一区位于第二区的下方； 在所述第二像 素中， 第一子像素和第三子像素的第一区均位于第二区的下方， 第二子像素的 第一区位于第二区的上方。 进一歩地， 在每一行像素中， 所述第一像素和第二像素交替排列， 在每一 列像素中， 像素均为所述第一像素或所述第二像素。 进一歩地， 所述第一区在子像素中所占面积小于所述第二区。 进一歩地， 所述液晶驱动模组包括： 栅极驱动器， 通过多条往行方向延伸 的扫描线连接各个子像素， 依次向各条扫描线输出扫描信号， 数据驱动器， 通 过多条往列方向延伸的数据线连接各个子像素， 为各个子像素提供数据信号， 以及时序控制器， 连接并控制所述栅极驱动器和所述数据驱动器。
本发明的像素结构、 显示面板及液晶显示器， 通过重新排布显示面板的像素中 的子像素， 使得任意两个相邻子像素的第一区不相邻， 避免两个第一区形成 2 连点， 进而避免形成亮点， 同时在低灰阶显示时， 由于各个子像素的第一区呈 "品"字形排布， 使得各个第一区的空间混色效果较好， 进而改善 RGB三色 的混色效果。
附图说明
图 la示出现有技术的垂直配向显示模式不加电压状态下的示意图。 图 lb示出现有技术的垂直配向显示模式加电压状态下的示意图。 图 2示出现有技术的两个相邻的碎亮点变成亮点的示意图。 图 3示出根据本发明的实施例的显示面板的子像素排列示意图。 图 4示出根据本发明的实施例的第一像素的子像素的排列示意图。 图 5示出根据本发明的实施例的第二像素的子像素的排列示意图。 图 6示出根据本发明的实施例的液晶显示器的示意图。
图 7示出根据本发明的实施例的栅极驱动器和数据驱动器驱动子像素的示 意图。
具体实施方式 现在对本发明的实施例进行详细的描述， 其示例表示在附图中， 其中，相 同的标号始终表示相同部件。下面通过参照附图对实施例进行描述以解释本发 明。 在附图中， 为了清晰起见， 可以夸大层和区域的厚度。 在下面的描述中， 为了避免公知结构和 /或功能的不必要的详细描述所导致的本发明构思的混淆， 可省略公知结构和 /或功能的不必要的详细描述。 图 3示出根据本发明的实施例的显示面板的像素排列示意图。 图 4示出根 据本发明的实施例的第一像素的子像素的排列示意图。 图 5示出根据本发明的 实施例的第二像素的子像素的排列示意图。 其中， 图 3中仅示出显示面板的部 分像素的排列， 应当理解， 本发明并不以此为限。 参照图 3， 根据本发明的实施例的显示面板包括阵列排布的多个第一像素 31和多个第二像素 32， 第一像素 31和第二像素 32为设计规格有区别的两种 像素， 下面将详细介绍。 具体而言， 以第一像素 31为例， 参照图 4， 第一像素 31包括以行排列的 第一子像素 311、 第二子像素 312和第三子像素 313， 基于 8畴 （8 Domain) 设计， 第一子像素 311、 第二子像素 312和第三子像素 313均被分为第一区 A 和第二区8。 在本实施例中， 第一区 A为 Main区， 第二区 B为 Sub区， 并且 第一区 A和第二区 B的大小不等， 优选地， 第一区 A在子像素中所占的面积 小于第二区 B。 此外， 在本实施例中， 假设第一像素 31中的第一子像素 311的第一区 A 和第二子像素 312的第一区 A都亮， 为了使得这两个相邻子像素的第一区 A 不相邻， 以避免形成 2连点， 将第一子像素 311的第一区 A位于第二区 B的 上方， 第二子像素 312的第一区 A位于第二区 B的下方。 同理， 为了避免第 二子像素 312的第一区 A与相邻的第三子像素 313的第一区 A形成 2连点， 使得第三子像素 313的第一区 A位于第二区 B的上方， 也就是说， 在第一像 素 31中， 三个子像素的第一区 A呈现 "品"字形倒转图形。 而且， 在第一像素 31中， 第一子像素 311、第二子像素 312和第三子像素 313为三基色 （RGB) 子像素中的任一种。 当三者的颜色各不相同， 例如， 第 一子像素 311可为红色 （Red) 子像素， 第二子像素 312可为绿色 （Green)子 像素， 第三子像素 313可为蓝色 （Blue) 子像素。 对第二像素 32而言， 参照图 5， 第二像素 32亦包括以行排列的第一子像 素 321、 第二子像素 322和第三子像素 323， 基于 8畴 （8 Domain) 设计， 第 一子像素 321、第二子像素 322和第三子像素 323亦均被分为第一区 A和第二 区8。 在本实施例中， 第一区 A为 Main区， 第二区 B为 Sub区， 并且第一区 A和第二区 B的大小不等， 优选地， 第一区 A在子像素中所占的面积小于第 二区 B， 但本发明并不限于此， 第一区 A可大于第二区 B。 此外，假设第二像素 32中的第一子像素 321的第一区 A和第二子像素 322 的第一区 A都亮， 为了使得第二像素 32中的这两个相邻子像素的第一区 A不 相邻， 以避免形成 2连点， 在第二像素 32中， 第一子像素 321的第一区 A位 于第二区 B的下方， 第二子像素 322的第一区 A位于第二区 B的上方。 同理， 为了避免第二子像素 322的第一区 A与相邻的第三子像素 323的第一区 A形 成 2连点， 使得第三子像素 323的第一区 A位于第二区 B的下方， 也就是说， 在第二像素 32中， 三个子像素的第一区 A呈现 "品"字形图形。 而且， 在第二像素 32中， 第一子像素 321、第二子像素 322和第三子像素 323为三基色 （RGB ) 子像素中的任一种， 但三者的颜色各不相同， 例如， 第 一子像素 321可为红色 （Red) 子像素， 第二子像素 322可为绿色 （Green)子 像素， 第三子像素 323可为蓝色 （Blue) 子像素。 另外， 请一并参照图 3、 图 4和图 5， 在阵列排布的多个第一像素 31和多 个第二像素 32中， 为了避免在两个相邻像素中， 相邻的两个子像素的第一区 A形成 2连点， 在本实施例中， 在每一行像素中， 第一像素 31和第二像素 32 交替排列， 在每一列像素中， 均为同一设计规格的像素， 即都为第一像素 31 或第二像素 32。 同时， 对于整个显示面板， 在低灰阶显示时， 各个子像素的第 一区呈 "品"字形排布， 使得各个第一区的空间混色效果较好， 进而改善 RGB 三色的混色效果。 图 6示出根据本发明的实施例的液晶显示器的示意图。 参照图 6，根据本发明实施例的液晶显示器包括背光模组 40、显示面板 30 和液晶驱动模组 50。 其中， 显示面板 30包含上述的像素排列结构， 液晶驱动 模组 50驱动显示面板 30上的各个子像素， 背光模组 40提供显示光源给显示 面板 30， 进而使得显示面板 30显示影像。 液晶驱动模组 50包括栅极驱动器 （Gate Driver) 51和数据驱动器 （或称 源极驱动器， Source Driver) 52、 时序控制器 53。 数据驱动器 52可通过多个 往列 （Row) 方向延伸的数据线连接各个子像素， 为各个子像素提供数据信号 (即像素电压）； 栅极驱动器 51可通过多个往行（Column)方向延伸的扫描线 连接各个子像素， 依次向各条扫描线提供扫描信号， 并且扫描线和数据线交错 设置。 时序控制器 53控制整个液晶显示器动作时序的中心， 配合每个帧显示 的时机， 设定栅极驱动器 52启动， 并将由界面所输入的视频信号转换成数据 驱动器 52所用的数据信号形式， 传送到数据驱动器 52中， 并配合栅极驱动器 51对每一行子像素的扫描， 控制数据驱动器 52通过数据线向该行子像素提供 数据信号。 在本实施例中， 背光模组 40可是直下式背光模组， 也可是侧入式背光模 组
图 7示出根据本发明的实施例的栅极驱动器和数据驱动器驱动子像素的示 意图。 其中， 图 7中只示出显示面板中一行子像素的部分子像素的驱动。 应当 理解， 显示面板中的其它子像素的驱动与图 7所示的驱动相同。 参照图 7， 假设各个子像素的第一区 A和第二区 B均未形成亮点， 当栅极 驱动器向主扫描线 MG提供扫描信号时，连接在主扫描线 MG上的各个第一薄 膜场效应晶体管（TFT) 71的栅极被打开， 此刻， 各个第一薄膜场效应晶体管 ( TFT) 71的连接到数据线 D上的源极接收来自数据驱动器提供的数据信号 (即像素电压）， 而后向各个子像素的第一区 A和第二区 B提供数据信号， 即 对各个子像素进行充电， 但是各个子像素的第一区 A和第二区 B接收的充电 电压并不相同； 当栅极驱动器关闭主扫描线 MG， 并向从扫描线 SG提供扫描 信号时， 连接在从扫描线 SG上的各个第二薄膜场效应晶体管 （TFT) 72的栅 极被打开， 此刻， 各个第二薄膜场效应晶体管 （TFT) 72中连接的共享电容 C 将各个子像素的第一区 A和第二区 B的充电电压进行均衡， 使第一区 A和第 二区 B的充电电压相等， 进而完成对各个子像素的充电。 综上所述， 通过重新排布显示面板的子像素， 使得任意两个相邻子像素的 第一区不相邻， 避免两个第一区形成 2连点， 进而避免形成亮点， 同时在低灰 阶显示时， 由于各个子像素的第一区呈 "品"字形排布， 使得各个第一区的空 间混色效果较好， 进而改善 RGB三色的混色效果。 尽管已经参照其示例性实施例具体显示和描述了本发明， 但是本领域的技 术人员应该理解， 在不脱离权利要求所限定的本发明的精神和范围的情况下， 可以对其进行形式和细节上的各种改变。

Claims

权利要求书
1、 一种像素结构， 包括以行依次排列的第一子像素、 第二子像素和第三 子像素， 并且所述第一子像素、 第二子像素和第三子像素均被分为第一区和第 二区， 其中， 所述第一子像素和第三子像素的第一区均位于第二区的上方，所 述第二子像素的第一区位于第二区的下方。
2、 根据权利要求 1所述的像素结构， 其中， 所述第一区在子像素中所占 面积小于所述第二区。
3、 一种显示面板， 其中， 包括阵列排布的多个第一像素和多个第二像素， 所述第一像素和第二像素均包括以行依次排列的第一子像素、第二子像素 和第三子像素， 并且所述第一子像素、 第二子像素和第三子像素均被分为第一 区和第二区； 在所述第一像素中，第一子像素和第三子像素的第一区均位于第二区的上 方， 第二子像素的第一区位于第二区的下方； 在所述第二像素中，第一子像素和第三子像素的第一区均位于第二区的下 方， 第二子像素的第一区位于第二区的上方。
4、 根据权利要求 3所述的显示面板， 其中， 在每一行像素中， 所述第一 像素和第二像素交替排列， 在每一列像素中， 像素均为所述第一像素或所述第 二像素。
5、 根据权利要求 3所述的显示面板， 其中， 所述第一区在子像素中所占 面积小于所述第二区。
6、 根据权利要求 4所述的显示面板， 其中， 所述第一区在子像素中所占 面积小于所述第二区。
7、 根据权利要求 3所述的显示面板， 其中， 所述显示面板是通过液晶驱 动模组来驱动各个子像素， 并且通过背光模组提供的显示光源来显示影像。
8、 一种液晶显示器， 包括液晶驱动模组、 背光模组和显示面板， 所述液 晶驱动模组驱动控制所述显示面板，所述背光模组提供显示光源给所述显示面 板， 其中， 所述显示面板包括阵列排布的多个第一像素和多个第二像素， 所述第一像素和第二像素均包括以行依次排列的第一子像素、第二子像素 和第三子像素， 并且所述第一子像素、 第二子像素和第三子像素均被分为第一 区和第二区； 在所述第一像素中，第一子像素和第三子像素的第一区均位于第二区的上 方， 第二子像素的第一区位于第二区的下方； 在所述第二像素中，第一子像素和第三子像素的第一区均位于第二区的下 方， 第二子像素的第一区位于第二区的上方。
9、 根据权利要求 8所述的液晶显示器， 其中， 在每一行像素中， 所述第 一像素和第二像素交替排列， 在每一列像素中， 像素均为所述第一像素或所述 第二像素。
10、 根据权利要求 8所述的液晶显示器， 其中， 所述第一区在子像素中所 占面积小于所述第二区。
11、 根据权利要求 9所述的液晶显示器， 其中， 所述第一区在子像素中所 占面积小于所述第二区。
12、 根据权利要求 8所述的液晶显示器， 其中， 所述液晶驱动模组包括： 栅极驱动器， 通过多条往行方向延伸的扫描线连接各个子像素， 依次向各 条扫描线输出扫描信号， 数据驱动器， 通过多条往列方向延伸的数据线连接各个子像素， 为各个子 像素提供数据信号， 以及
时序控制器， 连接并控制所述栅极驱动器和所述数据驱动器。
PCT/CN2013/077762 2013-05-21 2013-06-24 像素结构、显示面板及液晶显示器 Ceased WO2014186998A1 (zh)

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