WO2012155374A1 - 液晶显示面板及其制作方法、驱动方法 - Google Patents

液晶显示面板及其制作方法、驱动方法 Download PDF

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Publication number
WO2012155374A1
WO2012155374A1 PCT/CN2011/075623 CN2011075623W WO2012155374A1 WO 2012155374 A1 WO2012155374 A1 WO 2012155374A1 CN 2011075623 W CN2011075623 W CN 2011075623W WO 2012155374 A1 WO2012155374 A1 WO 2012155374A1
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WIPO (PCT)
Prior art keywords
pixel
substrate
unit
liquid crystal
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/CN2011/075623
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English (en)
French (fr)
Inventor
顾浩波
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.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen 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.)
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/375,336 priority Critical patent/US8958032B2/en
Priority to DE112011105192.1T priority patent/DE112011105192B4/de
Publication of WO2012155374A1 publication Critical patent/WO2012155374A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/08—Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared

Definitions

  • Liquid crystal display panel manufacturing method thereof, and driving method
  • the present invention relates to the field of display technologies, and in particular, to a liquid crystal display panel, a manufacturing method thereof, and a driving method.
  • Fig. 1 it is a schematic cross-sectional view of a liquid crystal display panel of the prior art.
  • the exposure precision of the pixel matrix process is approaching the limit, and the resolution of the unit area is greatly increased under the same process requirements, which seriously affects the yield.
  • the inventors have noticed that an advanced liquid crystal display production technology has appeared on the market: Color-filter-on-array (COA) technology.
  • the color filter matrix technology is a technology for preparing a color filter on a thin film transistor (TFT) substrate, and its main advantage is that it can improve the pixel aperture ratio and the display quality of the liquid crystal display, and is applied to high-order products.
  • TFT thin film transistor
  • the difficulty of the optical film (CELL) process can be reduced.
  • the above-mentioned color filter matrix technique can be referred to as an electrode substrate for a liquid crystal display disclosed in Chinese Patent Application No. 02140119.5, which is published on Dec. 18, 2002.
  • the array substrate includes signal lines and control lines extending on the glass substrate in a manner perpendicular to each other.
  • a plurality of thin film transistor devices are disposed near the intersection of the signal line and the control line.
  • On the glass substrate a color filter layer and a pixel electrode are sequentially stacked corresponding to a pixel region surrounded by a signal line and a control line, and a strip-shaped colored region is formed by the pixel electrode and the color filter layer.
  • the technical problem to be solved by the present invention is to provide a liquid crystal display panel, a manufacturing method thereof, and a driving method, which can greatly improve product yield while achieving a small pixel pitch.
  • a technical solution adopted by the embodiment of the present invention is to provide a liquid crystal display panel, including: a first pixel matrix including a plurality of first pixel units; and a second pixel matrix including a plurality of second pixels a driving unit that respectively drives the first pixel matrix and the second pixel matrix; wherein the first pixel matrix and the second pixel matrix are disposed in parallel, at least one pair of the first pixel unit and the second pixel unit Partially overlapping, at least a pair of first pixel units and a second pixel unit form an overlapping pixel area; a ratio between adjacent ones of the overlapping pixel areas and a spacing of adjacent first pixel units is 0.3-0.7 Or a ratio of the distance from the adjacent second pixel unit is 0.3 to 0.7; the first pixel unit and the second pixel unit are overlapped in a row direction along the first pixel matrix or in a column direction.
  • the first pixel unit and the second pixel unit each include three sub-pixels of red, green, and blue, and the three sub-pixels of red, green, and blue are arranged in a line.
  • the liquid crystal display panel includes a first substrate, a second substrate, and a third substrate disposed in order from top to bottom, and the first pixel matrix is formed between the first substrate and the second substrate, and the second The second pixel matrix is formed between the substrate and the third substrate.
  • the first substrate is provided with a first thin film transistor unit corresponding to each of the first pixel units; the second substrate is provided with a first color filter unit corresponding to the first pixel unit; the third substrate is a substrate using a color filter matrix technology, the third substrate is provided with a second thin film transistor unit and a second color filter unit, and the second thin film transistor unit and the second color filter unit respectively correspond to the second pixel Unit settings.
  • the first substrate or the second substrate is provided with a first thin film transistor unit corresponding to each of the first pixel units;
  • the third substrate is a substrate adopting a color filter matrix technology, and the second thin film transistor unit is disposed
  • the color filter unit, the second thin film transistor unit and the color filter unit are respectively disposed corresponding to the second pixel unit.
  • a liquid crystal display panel comprising: a first pixel matrix including a plurality of first pixel units; and a second pixel matrix including a plurality of second a pixel unit; a driving unit, respectively connected to drive the first pixel matrix and the second image a matrix of pixels, wherein the first pixel matrix and the second pixel matrix are disposed in parallel, at least one pair of the first pixel unit and the second pixel unit partially overlap, between at least one pair of the first pixel unit and the second pixel unit An overlapping pixel area is formed.
  • the first pixel unit and the second pixel unit overlap in a row direction along the row of the first pixel matrix or in a column direction.
  • the first pixel unit and the second pixel unit each include three sub-pixels of red, green, and blue, and the three sub-pixels of red, green, and blue are arranged in a line.
  • the liquid crystal display panel includes a first substrate, a second substrate, and a third substrate disposed in order from top to bottom, and the first pixel matrix is formed between the first substrate and the second substrate, and the second The second pixel matrix is formed between the substrate and the third substrate.
  • the first substrate is provided with a first thin film transistor unit corresponding to each of the first pixel units; the second substrate is provided with a first color filter unit corresponding to the first pixel unit; the third substrate is a substrate using a color filter matrix technology, the third substrate is provided with a second thin film transistor unit and a second color filter unit, and the second thin film transistor unit and the second color filter unit respectively correspond to the second pixel Unit settings.
  • the first substrate or the second substrate is provided with a first thin film transistor unit corresponding to each of the first pixel units;
  • the third substrate is a substrate adopting a color filter matrix technology, and the second thin film transistor unit is disposed
  • the color filter unit, the second thin film transistor unit and the color filter unit are respectively disposed corresponding to the second pixel unit.
  • another technical solution adopted by the embodiment of the present invention is: providing a method for fabricating a liquid crystal display panel, preparing a first substrate, a second substrate, and a third substrate; and the first substrate and the second substrate The substrate is spaced apart from each other, and the liquid crystal is filled and sealed at the interval, so that a first pixel matrix is formed between the first substrate and the second substrate, and the second substrate and the third substrate are spaced apart from each other at an interval thereof.
  • the first pixel matrix includes a plurality of first pixel units
  • the second pixel matrix includes a plurality of second a pixel unit
  • the first pixel unit and the second pixel unit are correspondingly disposed, and at least one pair of the first pixel unit and the second pixel unit form an overlapping pixel region.
  • the first substrate is fabricated by a thin film transistor process
  • the second substrate is fabricated by a color filter process
  • the third substrate is fabricated by a color filter matrix technique.
  • another technical solution adopted by the embodiment of the present invention is: providing a driving method of a liquid crystal display panel, wherein the liquid crystal display panel includes a first substrate, a second substrate, and a third substrate, the first Forming a first pixel unit between the substrate and the second substrate, forming a second pixel unit between the second substrate and the third substrate, and forming an overlapping pixel region between the second pixel unit and the first pixel unit,
  • the method includes: in displaying a bright pixel, outputting a control signal to pass the second pixel unit through the light, and controlling the first pixel unit to pass the portion of the light from the second pixel unit, in the process of displaying the dark pixel, The second pixel unit or the first pixel unit does not pass light; repeating the foregoing output control signal controls the step of passing light of the overlapping
  • the beneficial effects of the present invention are as follows: Different from the prior art liquid crystal display panel, it is difficult to balance the high resolution and the high product yield.
  • the present invention adopts a two-layer pixel superposition display method, even if the first pixel unit and the layered distribution are An overlapping pixel area is formed between the second pixel units for display, because each part of the overlapping pixel area can be individually controlled, and the spacing between adjacent overlapping pixel areas can be smaller than the pixel spacing between adjacent first pixel units or adjacent to the second The pixel pitch between the pixel units is small, and the resolution can be greatly improved.
  • the liquid crystal display panel of the present invention can greatly improve the product yield while achieving a small pixel pitch.
  • FIG. 1 is a schematic cross-sectional view of a liquid crystal display panel of the prior art
  • FIG. 2 is a schematic diagram of a first embodiment of a liquid crystal display panel of the present invention.
  • FIG. 3 is a schematic structural view of a second embodiment of a liquid crystal display panel of the present invention.
  • FIG. 4 is a first operational state view of a third embodiment of the liquid crystal display panel of the present invention.
  • Figure 5 is a second operational state view of a third embodiment of the liquid crystal display panel of the present invention.
  • FIG. 6 is a third operational state view of a third embodiment of the liquid crystal display panel of the present invention.
  • FIG. 7 is a view showing an arrangement of a pixel unit of a liquid crystal display panel according to a third embodiment of the present invention
  • FIG. 8 is a schematic structural view of a fourth embodiment of the liquid crystal display panel of the present invention.
  • FIG. 9 is a schematic view showing a first embodiment of a first and second pixel unit combination structure of a liquid crystal display panel of the present invention.
  • Figure 10 is a view showing a second embodiment of the first and second pixel unit combination structures of the liquid crystal display panel of the present invention.
  • FIG. 2 is a schematic diagram of a first embodiment of a liquid crystal display panel according to the present invention, and the liquid crystal display panel includes:
  • the first pixel matrix 100, the second pixel matrix 200, and the driving unit 300 are The first pixel matrix 100, the second pixel matrix 200, and the driving unit 300.
  • the first pixel matrix 100 includes a plurality of first pixel units 101; and the second pixel matrix 200 includes a plurality of second pixel units 201.
  • the driving unit 300 is connected to drive the first pixel matrix 100 and the second pixel matrix respectively
  • the first pixel matrix 100 and the second pixel matrix 200 are disposed in parallel, at least a pair of the first pixel unit 101 and the second pixel unit 201 partially overlap, and at least a pair of the first pixel unit 101 and the second pixel unit 201 are formed.
  • a first overlapping pixel region 1001 is formed between a pair of first pixel units 101 and a second pixel unit 201
  • a second overlapping pixel region 1002 is formed between the first pixel unit 101 and another second pixel unit 201.
  • the embodiment of the present invention adopts a method of superimposing and displaying two layers of pixels, that is, forming an overlapping pixel area between the first pixel unit 101 and the second pixel unit 201 of the layered distribution, so that the first overlapping pixel area 1001 and the second overlapping
  • the two parts of the pixel area 1002 can be individually controlled for display. Therefore, the display resolution is improved, and there is no need to consider that the manufacturing precision of the first pixel unit 101 and the second pixel unit 201 is too high, so that the product yield cannot be guaranteed, and the product can be manufactured according to the existing precision and process technology.
  • the rate is ensured, thereby finally enabling the liquid crystal display panel of the present invention to greatly improve the product yield while achieving a small pixel pitch.
  • the liquid crystal display panel includes: a first substrate 11, a second substrate 14, and a third substrate 17.
  • the first substrate 11, the second substrate 14, and the third substrate 17 are sequentially disposed from top to bottom, and the first pixel matrix 100 is formed between the first substrate 11 and the second substrate 14, and the second substrate
  • the second pixel matrix 200 is formed between the 14 and the third substrate 17.
  • three substrates 11, 14, 17 are used to implement a layered pixel matrix, and the structure is relatively simple.
  • the structure for realizing the arrangement of the hierarchical pixel matrix is not limited thereto. For example, a structure in which four substrates are arranged up and down may be used, and each of the two substrates forms a pixel matrix.
  • a surface of the first substrate 11 opposite to the second substrate 14 is provided with a first thin film transistor layer 12, the first thin film transistor.
  • the layer 12 includes a plurality of first thin film transistor units (not shown) corresponding to the first pixel unit 101, and a surface of the second substrate 14 opposite to the first substrate 11 is provided with a first common electrode 18.
  • a surface of the first common electrode 18 opposite to the first substrate 11 is provided with a first color filter 13 corresponding to the first thin film transistor layer 12, and the first color filter 13 includes a plurality of first color filters.
  • the first color filter unit 130 is disposed corresponding to the first pixel unit 101.
  • a first liquid crystal layer 20 is disposed between the first thin film transistor layer 12 and the first color filter 13.
  • the third substrate 17 is a substrate using a color filter matrix technology, and a surface of the third substrate 17 opposite to the second substrate 14 is provided with a second thin film transistor layer 16 including the second thin film transistor layer 16 a plurality of second thin film transistor units (not shown) corresponding to the second pixel unit 201, and a second color filter 15 disposed on a surface of the second thin film transistor layer 16 opposite to the second substrate 14
  • the second color filter 15 includes a plurality of second color filter units 150, and the second color filter unit 150 is disposed corresponding to the second pixel unit 201.
  • a surface of the second substrate 14 opposite to the third substrate 17 is provided with a second common electrode 19.
  • a second liquid crystal layer 21 is disposed between the second color filter 15 and the second common electrode 19.
  • the backlight module 30 can also be disposed outside the third substrate 17.
  • the implementation principle of the above embodiment is: forming a second substrate provided with the first color filter 13 on the basis of the third substrate 17 provided with the second thin film transistor layer 16 and the second color filter 15 14. Finally, a first substrate 11 provided with the first thin film transistor layer 12 is formed.
  • the two pixel array positions corresponding to the first thin film transistor layer 12 and the second thin film transistor layer 16 are overlapped, so that the layered pixels form a certain degree of overlapping pixel regions, and the formed overlapping pixel region portions can be in the upper and lower pixels.
  • the spacing between the two adjacent overlapping pixel regions may be smaller than the spacing between the first pixel unit 101 or the second pixel unit 201, so that the displayed image is more refined and colored. The effect is better.
  • FIG. 4 to FIG. 6 The working process corresponding to the above embodiment is as shown in FIG. 4 to FIG. 6 , taking the first pixel unit 101 and the second pixel unit 201 as the first, second and third sub-pixels as an example, and FIG. 4 to FIG. 6, and please refer to Figure 3, the description is as follows:
  • Fig. 4 is a view showing a first operational state of the third embodiment of the liquid crystal display panel of the present invention.
  • the backlight module 30 When the backlight module 30 is lit, the second thin film transistor layer 16 of the third substrate 17 is turned on, and the third substrate 17 is turned on.
  • the first sub-pixel 1 on the display shows gray scale, because the first thin film transistor layer 12 of the first substrate 11 is not turned on, and the liquid crystal display panel has no light passing through and does not display an image.
  • Fig. 5 is a view showing a second operational state of the third embodiment of the liquid crystal display panel of the present invention.
  • the entire liquid crystal display panel can display an image, and only the overlapping pixel regions 4 formed by the third substrate 17 and the first substrate 11 and the second substrate 14 can be performed. Grayscale display.
  • FIG. 6 is a third operational state diagram of the third embodiment of the liquid crystal display panel of the present invention.
  • the second thin film transistor layer 16 corresponding to the first sub-pixel 1 on the third substrate 17 is turned off, so that the originally lit overlapping pixel region 4 is turned off, and the third substrate 17 corresponds to the second.
  • the second thin film transistor layer 16 of the sub-pixel 2 is turned on, thereby turning on the overlapping pixel region 5.
  • the spacing between adjacent overlapping pixel regions 4 and overlapping pixel regions 5 may be larger than the pixel pitch between adjacent first pixel units 101 or the pixel spacing between adjacent second pixel units 201 Small, so that you can get a more detailed picture than the general display, and its resolution can be greatly improved.
  • the positions of the first pixel matrix 100 and the second pixel matrix 200 may be arranged as appropriate, and the overlapping pixel area 4 or the overlapping pixel area 5 may be made smaller to further improve the display fineness.
  • the overlapping pixel area can be displayed progressively, and a picture finer than a normal pixel can be displayed.
  • the process method can reduce the difficulty of the optical film process because there is no alignment problem between the color filter and the thin film transistor layer.
  • the color filter matrix technique is adopted to achieve a higher aperture ratio and to reduce the difficulty of fabrication.
  • the color filter matrix technique that is, the thin film transistor and the color filter are not formed on the same substrate; and even if the color filter matrix technique is employed, there are other embodiments, such as
  • the third substrate 17 adopts a color filter matrix technique, and the first substrate 11 can also adopt a color filter matrix technique.
  • the spacing between adjacent overlapping pixel regions such as between the first overlapping pixel region 1001 and the second overlapping pixel region 1002 formed between the first pixel unit 101 and the second pixel unit 201
  • the ratio of the pitch to the adjacent first pixel unit 101 is 0.3 to 0.7, or the ratio of the pitch to the adjacent second pixel unit 201 is 0.3 to 0.7, such as 0.3, 0.4, 0.5, 0.6 or 0.7.
  • the luminous flux size can be adjusted, thereby realizing the display of the liquid crystal display panel. Free adjustment of fineness.
  • FIG. 7 is a schematic view showing the arrangement of pixel units of the third embodiment of the liquid crystal display panel of the present invention.
  • the first pixel unit 101 and the second pixel unit 201 each include three sub-pixels of red, green, and blue, and the three sub-pixels of red, green, and blue are arranged in a straight line, that is, the sub-pixels of the same color are arranged in a horizontal line or Arranged in a straight line.
  • the first pixel unit 101 and the second pixel unit 201 may be set according to actual needs. For example, it may be overlapped along the row direction of the first pixel matrix 100 or overlapped in the column direction. Of course, it is also possible to overlap in other directions along the direction of the line, which is not described here.
  • the embodiment of the present invention may also adopt a single color filter structure, that is, a color filter is disposed on only one of the substrates in the plurality of substrates.
  • FIG. 8 is a schematic structural view of a fourth embodiment of the liquid crystal display panel of the present invention.
  • the second embodiment of the present invention is different from the second embodiment of the present invention.
  • a first thin film transistor layer 121 is disposed on a surface of the first thin film transistor layer 121.
  • the first thin film transistor layer 121 includes a plurality of first thin film transistor units (not shown) corresponding to the first pixel unit 101.
  • a first liquid crystal layer 203 is disposed between the thin film transistor layer 121 and the second substrate 141.
  • the third substrate 171 is a substrate using a color filter matrix technology, and a surface of the third substrate 171 opposite to the second substrate 141 is provided with a second thin film transistor layer 161, and the second thin film transistor layer 161 includes a plurality of second thin film transistor units (not shown) corresponding to the second pixel unit 201, and a surface of the second thin film transistor layer 161 opposite to the second substrate 141 is provided with a color filter 151,
  • the color filter 151 includes a plurality of color filter units 1510, and the color filter unit 1510 is disposed corresponding to the second pixel unit 201.
  • a second liquid crystal layer 213 is disposed between the second substrate 141 and the color filter 151.
  • the backlight module 301 can also be disposed outside the third substrate 171.
  • the first thin film transistor 121 may be disposed on a surface of the second substrate 141 on the side opposite to the first substrate 111, depending on the actual situation.
  • the luminous flux can be increased, and the brightness of the liquid crystal display panel can be improved.
  • FIG. 9 and 10 are schematic views of a first embodiment and a second embodiment of a first and second pixel unit combination structure of a liquid crystal display panel of the present invention, respectively.
  • the color light mixing method of the first pixel unit 101 and the second pixel unit 201 may be used to obtain a desired light color.
  • the first pixel unit 101 and the second pixel unit 201 both use a color filter for two-way color mixing, Can get a light color with better hue and purity.
  • the three sub-pixels of red, green, and blue which are successively arranged on the second color filter 15 overlap with the three sub-pixels of red, green and blue which are sequentially arranged on the first color filter 13.
  • the formed pixels still maintain red, green, and blue colors.
  • the second color filter 15 and the first color filter 13 are monolithically overlapped, such as red to red, green to green, and blue to blue. , such overlap can only achieve the cutting of the pixel, no color mixing.
  • Other overlapping cases as shown in FIG. 10, when the red, green, and blue sub-pixels on the second color filter 15 and the first color filter 13 are sequentially arranged in green and blue
  • the pixels formed by overlapping the three red sub-pixels produce purple, cyan, and yellow colors.
  • the first overlapping pixel area 1001 is taken as an example, including:
  • Step 1 In the process of displaying bright pixels, the output control signal causes the second pixel unit 201 formed between the second substrate 14 and the third substrate 17 to pass light, and controls formation between the first substrate 11 and the second substrate 14.
  • the first pixel unit 101 passes the portion of the light from the second pixel unit 201, and the first overlapping pixel region 1001 forms a light passing between the second pixel unit 201 and the first pixel unit 101. , causing the first pixel unit 101 or the second pixel unit 201 not to pass light;
  • Step 2 repeating the foregoing output control signal to control the passage of the light of the first overlapping pixel region 1001 until all the second pixel units 201 between the second substrate 14 and the third substrate 17 and the first substrate 11 and the second substrate 14 are
  • the first overlapping pixel area 1001 between all the first pixel units 101 in between is an operation of displaying a bright pixel or displaying a dark pixel.
  • the second pixel unit 201 is controlled by the control signal to pass or not through the light, and the first pixel unit 101 is controlled to pass or not to pass light, so that the first overlapping pixel area 1001 displays bright pixels or displays dark pixels.
  • a first embodiment of a method for fabricating a liquid crystal display panel of the present invention including:
  • the first pixel matrix includes a plurality of first pixel units
  • the second pixel matrix includes a plurality of second pixel units
  • the first pixel unit and the second pixel unit are correspondingly disposed and overlap each other, at least one An overlapping pixel region is formed between the first pixel unit and the second pixel unit.
  • the picture accuracy of the liquid crystal display panel can be improved.
  • the first substrate is fabricated by a thin film transistor process segment
  • the second substrate is fabricated by a color filter process
  • the third substrate is fabricated by a color filter matrix technique.
  • the first substrate is fabricated by a thin film transistor process segment, and the second substrate is fabricated by a color filter process.
  • the entire liquid crystal display panel can be produced, and the process cartridge has a high yield.
  • a CELL process can be added on the basis of the original LCD process, and a liquid crystal display with high pixel precision can be provided, and the resolution of the liquid crystal display panel can be greatly improved, and Improve product yield.

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  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

摘要本发明公开了一种液晶显示面板及其制作方法、驱动方法。所述液晶显示面板包括：第一像素矩阵，包括多个第一像素单元；第二像素矩阵，包括多个第二像素单元；驱动单元，分别连接驱动所述第一像素矩阵和第二像素矩阵；其中，所述第一像素矩阵和第二像素矩阵平行设置，至少一对所述第一像素单元和第二像素单元部分重叠，至少一对第一像素单元和第二像素单元之间形成重叠像素区域。通过上述方式，本发明能够在同等工艺水平下，既实现高分辨率又提高产品良率。

Description

液晶显示面板及其制作方法、 驱动方法
【技术领域】
本发明涉及显示技术领域， 特别是涉及液晶显示面板及其制作方法、 驱动 方法。
【背景技术】
现有技术液晶显示器（ LCD )画面的精致程度，取决于像素间距（ Pixel Pitch )。 分辨率为 1024x768的 15英寸液晶显示器，其像素间距均为 0.297mm或 0.30mm, 而 17英寸液晶显示器的像素间距基本都为 0.264mm。 而目前主流的手机的像素 间距最小可达 0.1mm以下， 因此画面精致， 已经达到一定的逼真程度。
然而， 由于像素间距过小会产生相关的生产问题， 比如曝光精度要求过高、 电极布线过细造成电流信号不佳从而形成高精细液晶面板良率过低的问题。 已 经有实际案例表明此问题的严重性， 由于配备某款手机的高精细显示屏幕良率 过低， 使得该款手机产能不足， 造成供不应求， 甚至市面有一机难求的现象。
如图 1 所示， 其是现有技术一种液晶显示面板的截面示意图， 像素矩阵工 艺的曝光精度已经接近极限， 同等工艺要求的情况下大幅提高单位面积内的分 辨率会严重影响良率。
本发明人注意到， 目前市面上已经出现一项先进的液晶显示器生产技术： 色彩滤镜矩阵（Color-filter-on-array, COA )技术。 色彩滤镜矩阵技术是将彩色 滤光片制备在薄膜晶体管（TFT )基板上的技术， 其优势主要在于可以提高像素 开口率及液晶显示器显示品质， 应用于高阶产品。 另外， 因为无彩色滤光片的 玻璃基板与薄膜晶体管基板的对位问题， 所以可以降低光学膜片 （CELL )制程 的难度。
上述色彩滤镜矩阵技术可参阅 2002年 12月 18日公开的中国发明专利申请 第 02140119.5号所揭示的一种液晶显示器用的电极基板。 其中阵列基板包括在 玻璃基板上， 按照相互上下垂直的方式延伸的信号线和控制线。 在该信号线和 控制线的交叉部附近， 设置有多个薄膜晶体管器件。 在该玻璃基板上， 对应于 由信号线和控制线围绕的像素区域， 依次叠置彩色滤光层和像素电极， 通过像 素电极和彩色滤光层， 形成条带状的着色区域。 【发明内容】
本发明主要解决的技术问题是提供一种液晶显示面板及其制作方法、 驱动 方法， 能够在实现较小像素间距的同时大幅提高产品良率。
为解决上述技术问题， 本发明实施例采用的一个技术方案是： 提供一种液 晶显示面板， 包括： 第一像素矩阵， 包括多个第一像素单元； 第二像素矩阵， 包括多个第二像素单元； 驱动单元， 分别连接驱动所述第一像素矩阵和第二像 素矩阵； 其中， 所述第一像素矩阵和第二像素矩阵平行设置， 至少一对所述第 一像素单元和第二像素单元部分重叠， 至少一对第一像素单元和第二像素单元 之间形成重叠像素区域； 相邻所述重叠像素区域之间的间距， 与相邻所述第一 像素单元间距之比为 0.3~0.7, 或与相邻第二像素单元间距之比为 0.3~0.7； 所述 第一像素单元和第二像素单元之间是沿第一像素矩阵的行向重叠或沿列向重 叠。
其中， 所述第一像素单元和第二像素单元均包括红、 绿、 蓝三个子像素， 所述红、 绿、 蓝三个子像素成直线排列。
其中， 所述液晶显示面板包括从上至下依次设置的第一基板、 第二基板以 及第三基板， 所述第一基板和第二基板之间形成所述第一像素矩阵， 所述第二 基板和第三基板之间形成所述第二像素矩阵。
其中， 所述第一基板上设置有对应各个第一像素单元的第一薄膜晶体管单 元； 所述第二基板上设置有对应第一像素单元的第一彩色滤光单元； 所述第三 基板是采用色彩滤镜矩阵技术的基板， 所述第三基板设置有第二薄膜晶体管单 元和第二彩色滤光单元， 所述第二薄膜晶体管单元和所述第二彩色滤光单元均 对应第二像素单元设置。
其中， 所述第一基板或第二基板上设置有对应各个第一像素单元的第一薄 膜晶体管单元； 所述第三基板是采用色彩滤镜矩阵技术的基板， 其设置有第二 薄膜晶体管单元和彩色滤光单元， 所述第二薄膜晶体管单元和彩色滤光单元均 对应第二像素单元设置。
为解决上述技术问题， 本发明实施例采用的另一个技术方案是： 提供一种 液晶显示面板， 包括： 第一像素矩阵， 包括多个第一像素单元； 第二像素矩阵， 包括多个第二像素单元； 驱动单元， 分别连接驱动所述第一像素矩阵和第二像 素矩阵； 其中， 所述第一像素矩阵和第二像素矩阵平行设置， 至少一对所述第 一像素单元和第二像素单元部分重叠， 至少一对第一像素单元和第二像素单元 之间形成重叠像素区域。
相邻所述重叠像素区域之间的间距， 与相邻所述第一像素单元间距之比为
0.3-0.7 , 或与相邻第二像素单元间距之比为 0.3~0.7。
其中， 所述第一像素单元和第二像素单元之间是沿第一像素矩阵的行向重 叠或沿列向重叠。
其中， 所述第一像素单元和第二像素单元均包括红、 绿、 蓝三个子像素， 所述红、 绿、 蓝三个子像素成直线排列。
其中， 所述液晶显示面板包括从上至下依次设置的第一基板、 第二基板以 及第三基板， 所述第一基板和第二基板之间形成所述第一像素矩阵， 所述第二 基板和第三基板之间形成所述第二像素矩阵。
其中， 所述第一基板上设置有对应各个第一像素单元的第一薄膜晶体管单 元； 所述第二基板上设置有对应第一像素单元的第一彩色滤光单元； 所述第三 基板是采用色彩滤镜矩阵技术的基板， 所述第三基板设置有第二薄膜晶体管单 元和第二彩色滤光单元， 所述第二薄膜晶体管单元和所述第二彩色滤光单元均 对应第二像素单元设置。
其中， 所述第一基板或第二基板上设置有对应各个第一像素单元的第一薄 膜晶体管单元； 所述第三基板是采用色彩滤镜矩阵技术的基板， 其设置有第二 薄膜晶体管单元和彩色滤光单元， 所述第二薄膜晶体管单元和彩色滤光单元均 对应第二像素单元设置。
为解决上述技术问题， 本发明实施例采用的又一个技术方案是： 提供一种 液晶显示面板的制作方法， 准备第一基板、 第二基板以及第三基板； 将所述第 一基板和第二基板上下间隔设置， 在其间隔处灌注液晶并密封， 使所述第一基 板和第二基板之间形成第一像素矩阵， 将所述第二基板和第三基板上下间隔设 置， 在其间隔处灌注液晶并密封， 使所述第二基板和第三基板之间形成第二像 素矩阵； 其中， 所述第一像素矩阵包括多个第一像素单元， 所述第二像素矩阵 包括多个第二像素单元， 所述第一像素单元和第二像素单元对应设置， 至少一 对第一像素单元和第二像素单元之间形成重叠像素区域。
其中， 所述第一基板采用薄膜晶体管工艺制作， 所述第二基板采用彩色滤 光片工艺制作， 所述第三基板采用色彩滤镜矩阵技术制作。 为解决上述技术问题， 本发明实施例采用的另一个技术方案是： 提供一种 液晶显示面板的驱动方法， 所述液晶显示面板包括第一基板、 第二基板以及第 三基板， 所述第一基板和第二基板之间形成第一像素单元， 所述第二基板和第 三基板之间形成第二像素单元， 所述第二像素单元和第一像素单元之间形成重 叠像素区域， 所述方法包括： 在显示亮像素的过程中， 输出控制信号使第二像 素单元通过光线， 并且控制第一像素单元通过来自第二像素单元的部分所述光 线， 在显示暗像素过程中， 使所述第二像素单元或第一像素单元不通过光线； 重复前述输出控制信号控制重叠像素区域光线通过的步骤， 直至所有重叠像素 区域皆完成显示亮像素或显示暗像素的操作。
本发明的有益效果是： 区别于现有技术液晶显示面板难以兼顾较高分辨率 和高产品良率的情况， 本发明采用两层像素叠加显示的方法， 即使分层分布的 第一像素单元和第二像素单元之间形成重叠像素区域来显示， 因为重叠像素区 域各部分可以单独控制， 而且相邻重叠像素区域之间的间距可以比相邻第一像 素单元间的像素间距或相邻第二像素单元间的像素间距小， 能够大幅度提高分 辨率； 同时由于第一像素单元和第二像素单元的制作无需考虑精度过高而使产 品良率不能保证的问题， 可以按照现有的精度和工艺技术来制作， 产品良率得 以保证， 从而最终使得本发明液晶显示面板能够在实现较小像素间距的同时大 幅提高产品良率。
【附图说明】
图 1是现有技术一种液晶显示面板的截面示意图；
图 2是本发明液晶显示面板第一实施例的原理图；
图 3是本发明液晶显示面板第二实施例的结构示意图；
图 4是本发明液晶显示面板第三实施例的第一工作状态图；
图 5是本发明液晶显示面板第三实施例的第二工作状态图；
图 6是本发明液晶显示面板第三实施例的第三工作状态图；
图 7是本发明液晶显示面板第三实施例的像素单元的排列方式图； 图 8是本发明液晶显示面板第四实施例的结构示意图；
图 9是本发明液晶显示面板第一、 第二像素单元组合结构的第一实施例的 示意图； 图 10是本发明液晶显示面板第一、 第二像素单元组合结构的第二实施例的 意图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
如图 2, 是本发明液晶显示面板第一实施例的原理图， 所述液晶显示面板包 括：
第一像素矩阵 100、 第二像素矩阵 200和驱动单元 300。
所述第一像素矩阵 100包括多个第一像素单元 101; 所述第二像素矩阵 200 包括多个第二像素单元 201。
所述驱动单元 300, 分别连接驱动所述第一像素矩阵 100和第二像素矩阵
200。
其中， 第一像素矩阵 100和第二像素矩阵 200平行设置， 至少一对第一像 素单元 101和第二像素单元 201部分重叠， 至少一对第一像素单元 101和第二 像素单元 201之间形成第一重叠像素区域 1001。 比如， 一对第一像素单元 101 和第二像素单元 201之间形成第一重叠像素区域 1001 , 所述第一像素单元 101 和另一第二像素单元 201之间形成第二重叠像素区域 1002。
本发明实施例通过采用两层像素叠加显示的方法， 即， 使分层分布的第一 像素单元 101和第二像素单元 201之间形成重叠像素区域， 使第一重叠像素区 域 1001和第二重叠像素区域 1002两部分可以单独控制显示。 从而提高了显示 分辨率， 且无需考虑第一像素单元 101和第二像素单元 201的制作精度过高而 使产品良率不能保证的问题， 可以按照现有的精度和工艺技术来制作， 产品良 率得以保证， 从而最终使得本发明液晶显示面板能够在实现较小像素间距的同 时大幅提高产品良率。
参阅图 3, 其为本发明液晶显示面板第二实施例的结构示意图， 并请结合图 2。 所述液晶显示面板包括： 第一基板 11、 第二基板 14以及第三基板 17。 所述 第一基板 11、 第二基板 14以及第三基板 17从上至下依次设置， 所述第一基板 11和第二基板 14之间形成所述第一像素矩阵 100, 所述第二基板 14和第三基 板 17之间形成所述第二像素矩阵 200。 本实施例采用三块基板 11、 14、 17来实 现分层像素矩阵， 结构相对筒单。 但应当说明的是， 实现分层像素矩阵排列的结构不限于此， 比如可以采用 四块基板上下排列的结构形式， 每两块基板形成一层像素矩阵。
请继续参阅图 2和图 3, 本发明液晶显示面板第三实施例中， 所述第一基板 11相对第二基板 14一侧的表面设置有第一薄膜晶体管层 12, 所述第一薄膜晶 体管层 12中包括多个与第一像素单元 101—一对应的第一薄膜晶体管单元（图 未示 ), 所述第二基板 14相对第一基板 11一侧的表面设置有第一公共电极 18。 所述第一公共电极 18相对第一基板 11一侧的表面设置有对应第一薄膜晶体管 层 12的第一彩色滤光片 13, 所述第一彩色滤光片 13包括多个第一彩色滤光单 元 130, 所述第一彩色滤光单元 130对应第一像素单元 101设置。 所述第一薄膜 晶体管层 12和第一彩色滤光片 13之间设置有第一液晶层 20。 所述第三基板 17 是采用色彩滤镜矩阵技术的基板， 所述第三基板 17相对第二基板 14一侧的表 面设置有第二薄膜晶体管层 16,所述第二薄膜晶体管层 16中包括多个与第二像 素单元 201—一对应的第二薄膜晶体管单元（图未示）， 所述第二薄膜晶体管层 16相对第二基板 14一侧的表面设置有第二彩色滤光片 15, 所述第二彩色滤光 片 15包括多个第二彩色滤光单元 150, 所述第二彩色滤光单元 150对应第二像 素单元 201设置。 同时， 所述第二基板 14相对第三基板 17—侧的表面设置有 第二公共电极 19。 所述第二彩色滤光片 15和第二公共电极 19之间设置有第二 液晶层 21。 当然， 还可以在第三基板 17外侧设置背光模组 30。
上述实施例的实现原理是： 在设有第二薄膜晶体管层 16和第二彩色滤光片 15的第三基板 17基础上，再形成一层设置有第一彩色滤光片 13的第二基板 14, 最后形成一层设置有第一薄膜晶体管层 12的第一基板 11。将第一薄膜晶体管层 12和第二薄膜晶体管层 16所分别对应的两层像素排列位置进行重叠，使得分层 像素形成一定程度的重叠像素区域， 所形成的重叠像素区域部分便可以在上下 像素打开下进行灰度调节显示， 左右两个相邻的重叠像素区域之间的间距可以 比第一像素单元 101或第二像素单元 201的间距还要小， 因此显示出来的画面 更为精致， 色彩效果更佳。
上述实施例对应的工作过程如图 4至图 6所示， 以所述第一像素单元 101 和第二像素单元 201均包括第一、 第二和第三子像素为例， 结合图 4至图 6, 并 请参阅图 3, 筒述如下：
1 )如图 4所示， 是本发明液晶显示面板第三实施例的第一工作状态图。 当 背光模组 30点亮时， 先导通第三基板 17的第二薄膜晶体管层 16, 第三基板 17 上的第一子像素 1显示灰度， 因为第一基板 11的第一薄膜晶体管层 12不导通， 液晶显示面板没有光线通过并不显示图像。
2 )如图 5所示， 是本发明液晶显示面板第三实施例的第二工作状态图。 当 第一基板 11的第一薄膜晶体管层 12进行导通时， 整块液晶显示面板才能显示 图像， 只有第三基板 17与第一基板 11和第二基板 14形成的重叠像素区域 4才 可以进行灰度显示。
3 )如图 6所示， 是本发明液晶显示面板第三实施例的第三工作状态图。 当 需要显示下一行像素时， 先关闭第三基板 17上对应第一子像素 1的第二薄膜晶 体管层 16, 这样， 原来点亮的重叠像素区域 4关闭， 而第三基板 17上对应第二 子像素 2的第二薄膜晶体管层 16开启， 从而将重叠像素区域 5开启。
结合图 5和图 6, 由于相邻重叠像素区域 4和重叠像素区域 5之间的间距可 以比相邻第一像素单元 101之间的像素间距或相邻第二像素单元 201之间的像 素间距小， 这样就可以得到较一般显示更为精细的画面， 其分辨率可以大幅提 高。 还可以视情况排列第一像素矩阵 100和第二像素矩阵 200的位置， 可以将 重叠像素区域 4或重叠像素区域 5做得更加小， 进一步提高显示精细。
根据上述显示原理， 就可以对重叠像素区域进行逐行扫描显示， 显示出比 一般像素更加精细的画面。
在本发明实施例中，通过将第二彩色滤光片 15制备在第二薄膜晶体管层 16 上， 提高像素开口率及液晶显示器显示品质。 另外， 该制程方法因为没有彩色 滤光片与薄膜晶体管层的对位问题， 所以可以降低光学膜片的制程难度。
上述实施例， 是采用色彩滤镜矩阵技术， 实现较高的开口率同时， 降低制 作难度。 但应当说明的是， 不采用色彩滤镜矩阵技术也是可以的， 即薄膜晶体 管和彩色滤光片不形成于同一基板上； 而且即使采用色彩滤镜矩阵技术， 也存 在其他实施例， 比如除第三基板 17采用色彩滤镜矩阵技术外， 第一基板 11也 可采用色彩滤镜矩阵技术。
在本发明各实施例中， 相邻重叠像素区域之间的间距， 如， 第一像素单元 101和第二像素单元 201之间形成的第一重叠像素区域 1001与第二重叠像素区 域 1002之间的间距， 与相邻所述第一像素单元 101间距之比为 0.3~0.7, 或与相 邻第二像素单元 201间距之比为 0.3~0.7, 比如 0.3、 0.4、 0.5、 0.6或 0.7等。
在上述实施例中， 通过调整第一重叠像素区域 1001 和第二重叠像素区域 1002之间的间距， 可以调节光通量大小， 进而实现对液晶显示面板显示画面精 细度的自由调节。
请参阅图 7, 并请参阅图 2, 是本发明液晶显示面板第三实施例的像素单元 的排列方式图。 所述第一像素单元 101和第二像素单元 201均包括红、 绿、 蓝 三个子像素， 所述红、 绿、 蓝三个子像素成直线排列， 即， 相同颜色的子像素 成横向直线排列或者成纵向直线排列。
在本发明各实施例中， 所述第一像素单元 101和第二像素单元 201之间可 以根据实际需要设置。 例如可以是沿第一像素矩阵 100 的行向重叠或沿列向重 叠。 当然， 还可以沿行向的其他角度倾斜方向重叠， 在此不——赘述。
为得到较亮的光色， 本发明实施例也可以采用单彩色滤光片结构， 即多块 基板中仅在其中一块基板上设置彩色滤光片。 比如请参阅图 8, 其是本发明液晶 显示面板第四实施例的结构示意图， 并请结合图 2, 其与本发明第二实施例的区 别在于： 所述第一基板 111的相对第二基板 141一侧的表面设置有第一薄膜晶 体管层 121 ,所述第一薄膜晶体管层 121中包括多个与第一像素单元 101—一对 应的第一薄膜晶体管单元（图未示 ),所述第一薄膜晶体管层 121和第二基板 141 之间设置有第一液晶层 203。所述第三基板 171是采用色彩滤镜矩阵技术的基板， 所述第三基板 171相对第二基板 141一侧的表面设置有第二薄膜晶体管层 161 , 所述第二薄膜晶体管层 161 中包括多个与第二像素单元 201—一对应的第二薄 膜晶体管单元（图未示）， 所述第二薄膜晶体管层 161相对第二基板 141一侧的 表面设置有彩色滤光片 151 , 所述彩色滤光片 151包括多个彩色滤光单元 1510, 所述彩色滤光单元 1510对应第二像素单元 201设置。 同时， 所述第二基板 141 和彩色滤光片 151之间设置有第二液晶层 213。 当然，还可以在第三基板 171外 侧设置背光模组 301。 另外， 根据实际情况， 所述第一薄膜晶体管 121可以设置 在第二基板 141相对第一基板 111一侧的表面。
如前述，在上述实施例中，通过仅设置一层彩色滤光片 151 ,能增大光通量， 提高液晶显示面板的亮度。
图 9和图 10分别是本发明液晶显示面板第一、 第二像素单元组合结构的第 一实施例和第二实施例的示意图。 请参阅图 9和图 10, 并请结合图 2和图 3 , 可以采用所述第一像素单元 101和第二像素单元 201的色光加色混合方法来得 出需要的光色。 使用三原色红（R )、 绿 (G)以及蓝 (B)光色相叠射， 可得出混色黄 (Y)、 品红 (Μ)以及青 (C), 而如果将三原色完全重叠投射， 则混色为白光。 如果 所述第一像素单元 101和第二像素单元 201都使用彩色滤光片进行双向混色， 能得到色相及纯度更加好的光色。
如图 9所示， 所述第二彩色滤光片 15上按续排列的红、 绿、 蓝三个子像素 同第一彩色滤光片 13上按序排列的红、 绿、 蓝三个子像素重叠形成的像素仍保 持红、 绿、 蓝色彩， 此时， 对所述第二彩色滤光片 15和第一彩色滤光片 13筒 单地重叠， 如红对红、 绿对绿、 蓝对蓝， 这样的重叠只能实现对像素的切割， 不会产生混色。 其它重叠情况， 如图 10所示， 当所述第二彩色滤光片 15上的 按序排列的红、 绿、 蓝三个子像素和第一彩色滤光片 13上按序排列的绿、 蓝、 红三个子像素重叠形成的像素产生紫、 青、 黄色彩。
在上述实施例中， 通过对所述红、 绿、 蓝三个子像素采用不同方式排列、 对第一像素单元 101和第二像素单元 201采用不同的重叠方式排列， 能够得到 各种不同特点的显示特性， 适合各种不同的应用。
基于本发明精神， 还提供本发明液晶显示的驱动方法的实施例， 并请再参 阅图 2和图 3 , 以第一重叠像素区域 1001为例， 包括：
步骤一， 在显示亮像素的过程中， 输出控制信号使第二基板 14和第三基板 17之间形成的第二像素单元 201通过光线， 并且控制第一基板 11和第二基板 14之间形成的第一像素单元 101通过来自第二像素单元 201的部分所述光线， 所述第二像素单元 201和第一像素单元 101之间形成第一重叠像素区域 1001通 过光线， 在显示暗像素过程中， 使所述第一像素单元 101 或第二像素单元 201 不通过光线；
步骤二， 重复前述输出控制信号控制第一重叠像素区域 1001光线通过的步 骤， 直至第二基板 14和第三基板 17之间的所有第二像素单元 201与第一基板 11和第二基板 14之间的所有第一像素单元 101之间的第一重叠像素区域 1001、 皆完成显示亮像素或显示暗像素的操作。
在本发明实施例中， 通过控制信号控制第二像素单元 201 通过或不通过光 线，并控制第一像素单元 101通过或者不通过光线，使得第一重叠像素区域 1001 显示亮像素或者显示暗像素。
此外， 基于本发明精神， 还提供本发明液晶显示面板的制作方法的第一实 施例， 包括：
( 1 ) 准备第一基板、 第二基板以及第三基板。
( 2 )将所述第一基板和第二基板上下间隔设置， 在其间隔处灌注液晶并密 封， 使所述第一基板和第二基板之间形成第一像素矩阵， 将所述第二基板和第 三基板上下间隔设置， 在其间隔处灌注液晶并密封， 使所述第二基板和第三基 板之间形成第二像素矩阵。
其中， 所述第一像素矩阵包括多个第一像素单元， 所述第二像素矩阵包括 多个第二像素单元， 所述第一像素单元和第二像素单元对应设置， 并且相互重 叠， 至少一对第一像素单元和第二像素单元之间形成重叠像素区域。
在本发明实施例中， 通过向准备的第一、 第二和第三基板间灌注液晶并密 封， 形成重叠像素区域， 能够提高液晶显示面板的画面精度。
在上述方法的具体应用实施例中， 所述第一基板采用薄膜晶体管工艺段制 作， 所述第二基板采用彩色滤光片工艺制作， 所述第三基板采用色彩滤镜矩阵 技术制作。
譬如， 在液晶显示面板制程中，
对第一基板采用薄膜晶体管工艺段制作， 对第二基板采用彩色滤光片工艺 制作。
使用液晶注入法或液晶低下法技术对第一基板和第二基板密封涂布， 液晶 滴下及真空贴合， 紫外照射固化； 对第三基板进行密封涂布和液晶滴下， 之后 将第三基板与合片之后的第一、 第二基板进行真空贴合， 然后对合片之后的第 一、 第二和第三基板进行紫外照射固化， 并进行框胶热固化， 形成整个液晶显 示面板。
在本发明实施例中， 通过灵活地结合不同工艺， 能够制作得到整个液晶显 示面板， 制程筒单、 良率较高。
综合上述实施例， 采用本发明的设计及工艺， 可在原有 LCD制程基础上， 增加一段 CELL制程， 即可提供高像素精细度的液晶显示器， 大幅度改善液晶 显示面板的分辨率， 并且还能提高产品良率。
以上所述仅为本发明的实施例， 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

权利要求
1.一种液晶显示面板， 其特征在于， 包括：
第一像素矩阵， 包括多个第一像素单元；
第二像素矩阵， 包括多个第二像素单元；
驱动单元， 分别连接驱动所述第一像素矩阵和第二像素矩阵；
其中， 所述第一像素矩阵和第二像素矩阵平行设置， 至少一对所述第一像 素单元和第二像素单元部分重叠， 形成重叠像素区域；
相邻所述重叠像素区域之间的间距， 与相邻所述第一像素单元间距之比为
0.3-0.7 , 或与相邻第二像素单元间距之比为 0.3~0.7；
所述第一像素单元和第二像素单元之间是沿第一像素矩阵的行向重叠或沿 列向重叠。
2.根据权利要求 1所述的液晶显示面板， 其特征在于：
所述第一像素单元和第二像素单元均包括红、 绿、 蓝三个子像素， 所述红、 绿、 蓝三个子像素成直线排列。
3.根据权利要求 1所述的液晶显示面板， 其特征在于：
所述液晶显示面板包括从上至下依次设置的第一基板、 第二基板以及第三 基板， 所述第一基板和第二基板之间形成所述第一像素矩阵， 所述第二基板和 第三基板之间形成所述第二像素矩阵。
4.根据权利要求 3所述的液晶显示面板， 其特征在于：
所述第一基板上设置有对应各个第一像素单元的第一薄膜晶体管单元； 所述第二基板上设置有对应第一像素单元的第一彩色滤光单元；
所述第三基板是采用色彩滤镜矩阵技术的基板， 所述第三基板设置有第二 薄膜晶体管单元和第二彩色滤光单元， 所述第二薄膜晶体管单元和所述第二彩 色滤光单元均对应第二像素单元设置。
5.根据权利要求 3所述的液晶显示面板， 其特征在于：
所述第一基板或第二基板上设置有对应各个第一像素单元的第一薄膜晶体 管单元；
所述第三基板是采用色彩滤镜矩阵技术的基板， 其设置有第二薄膜晶体管 单元和彩色滤光单元， 所述第二薄膜晶体管单元和彩色滤光单元均对应第二像 素单元设置。
6.—种液晶显示面板， 其特征在于， 包括：
第一像素矩阵， 包括多个第一像素单元；
第二像素矩阵， 包括多个第二像素单元；
驱动单元， 分别连接驱动所述第一像素矩阵和第二像素矩阵；
其中， 所述第一像素矩阵和第二像素矩阵平行设置， 至少一对所述第一像 素单元和第二像素单元部分重叠， 至少一对第一像素单元和第二像素单元之间 形成重叠像素区域。
7.根据权利要求 6所述的液晶显示面板， 其特征在于：
相邻所述重叠像素区域之间的间距， 与相邻所述第一像素单元间距之比为 0.3-0.7 , 或与相邻第二像素单元间距之比为 0.3~0.7；
8.根据权利要求 6所述的液晶显示面板， 其特征在于：
所述第一像素单元和第二像素单元之间是沿第一像素矩阵的行向重叠或沿 列向重叠。
9.根据权利要求 6所述的液晶显示面板， 其特征在于：
所述第一像素单元和第二像素单元均包括红、 绿、 蓝三个子像素， 所述红、 绿、 蓝三个子像素成直线排列。
10.根据权利要求 6所述的液晶显示面板， 其特征在于：
所述液晶显示面板包括从上至下依次设置的第一基板、 第二基板以及第三 基板， 所述第一基板和第二基板之间形成所述第一像素矩阵， 所述第二基板和 第三基板之间形成所述第二像素矩阵。
11.根据权利要求 10所述的液晶显示面板， 其特征在于：
所述第一基板上设置有对应各个第一像素单元的第一薄膜晶体管单元； 所述第二基板上设置有对应第一像素单元的第一彩色滤光单元；
所述第三基板是采用色彩滤镜矩阵技术的基板， 所述第三基板设置有第二 薄膜晶体管单元和第二彩色滤光单元， 所述第二薄膜晶体管单元和所述第二彩 色滤光单元均对应第二像素单元设置。
12.根据权利要求 10所述的液晶显示面板， 其特征在于：
所述第一基板或第二基板上设置有对应各个第一像素单元的第一薄膜晶体 管单元；
所述第三基板是采用色彩滤镜矩阵技术的基板， 其设置有第二薄膜晶体管 单元和彩色滤光单元， 所述第二薄膜晶体管单元和彩色滤光单元均对应第二像 素单元设置。
13.—种液晶显示面板的制作方法， 其特征在于， 包括：
准备第一基板、 第二基板以及第三基板；
将所述第一基板和第二基板上下间隔设置， 在其间隔处灌注液晶并密封， 使所述第一基板和第二基板之间形成第一像素矩阵， 将所述第二基板和第三基 板上下间隔设置， 在其间隔处灌注液晶并密封， 使所述第二基板和第三基板之 间形成第二像素矩阵；
其中， 所述第一像素矩阵包括多个第一像素单元， 所述第二像素矩阵包括 多个第二像素单元， 所述第一像素单元和第二像素单元对应设置， 至少一对第 一像素单元和第二像素单元之间形成重叠像素区域。
14.根据权利要求 13所述的制作方法， 其特征在于：
所述第一基板采用薄膜晶体管工艺制作， 所述第二基板采用彩色滤光片工 艺制作， 所述第三基板采用色彩滤镜矩阵技术制作。
15.—种液晶显示面板的驱动方法， 其特征在于， 所述液晶显示面板包括第 一基板、 第二基板以及第三基板， 所述第一基板和第二基板之间形成第一像素 单元， 所述第二基板和第三基板之间形成第二像素单元， 所述第二像素单元和 第一像素单元之间形成重叠像素区域， 所述方法包括：
在显示亮像素的过程中， 输出控制信号使第二像素单元通过光线， 并且控 制第一像素单元通过来自第二像素单元的部分所述光线， 在显示暗像素过程中， 使所述第二像素单元或第一像素单元不通过光线；
重复前述输出控制信号控制重叠像素区域光线通过的步骤， 直至所有重叠 像素区域皆完成显示亮像素或显示暗像素的操作。
PCT/CN2011/075623 2011-05-17 2011-06-10 液晶显示面板及其制作方法、驱动方法 Ceased WO2012155374A1 (zh)

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