CN103323990B - A kind of display panels and liquid crystal indicator - Google Patents
A kind of display panels and liquid crystal indicator Download PDFInfo
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- CN103323990B CN103323990B CN201310269534.XA CN201310269534A CN103323990B CN 103323990 B CN103323990 B CN 103323990B CN 201310269534 A CN201310269534 A CN 201310269534A CN 103323990 B CN103323990 B CN 103323990B
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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
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- 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
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- 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
- G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
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- 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
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
- G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
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- 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
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0814—Several active elements per pixel in active matrix panels used for selection purposes, e.g. logical AND for partial update
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- 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
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of display panels and liquid crystal indicator, wherein, in described display panels, each pixel cell of first substrate comprises the first pixel electrode and the second pixel electrode, charging sweep trace and data line drive the first pixel electrode and the display of the second pixel electrode respectively by the first switch and second switch, 3rd switch is connected with electric discharge sweep trace, the input end of the 3rd switch is connected with the first pixel electrode or the second pixel electrode, the output terminal of the 3rd switch is connected with discharge circuit, second substrate comprises the first public electrode and the second public electrode, first public electrode is corresponding with the first pixel electrode, to provide the first common electric voltage, second public electrode is corresponding with the second pixel electrode, to provide the second common electric voltage.By the way, the present invention can improve the low colour cast effect with great visual angle, is conducive to reducing afterimage phenomenon simultaneously.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of display panels and liquid crystal indicator.
Background technology
Many merits such as TFT-LCD liquid crystal display is little with its volume, thickness is thin, lightweight, picture flicker free and enjoy consumers welcomed, replace traditional CRT monitor gradually and occupy most of monitor market.But in TFT-LCD, ubiquity colour cast (LowColorShift) problem with great visual angle, namely under larger viewing angle, color distortion is comparatively large, and color distortion is comparatively serious, especially adopts the large scale liquid crystal display panel of VA display technique more outstanding.In order to solve the problem, common way the pixel region of in array base palte is divided into main pixel region and time pixel region, and Shi Liang district presents different Gamma(gammas) curve.The gamma curve of twoth district synthesis, lower different less with positive subtense angle with great visual angle, obviously improves colour cast problem with great visual angle.
The pixel electrode that public electrode on colorized optical filtering (CF) substrate is used for array substrate provides common electric voltage.But, public electrode on CF substrate normally connects together, when a pixel region is divided into the design of two pixel regions by employing, main pixel region and time pixel region share the same common electrode voltage of colored optical filtering substrates side, independently cannot control the required common electric voltage of main pixel region and time pixel region, bring difficulty to the control of the gamma curve of two pixel regions, reduce the effect of colour cast with great visual angle.In addition, main pixel region and time pixel region the common electric voltage that shares, may not be all the best common electrode voltage of main pixel region and time pixel region, likely can cause main pixel region and time pixel region generation charge residue, cause Image sticking problems.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of display panels and liquid crystal indicator, effectively can reduce colour cast with great visual angle, reduces color distortion, can reduce image residue simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of display panels, comprise first substrate, second substrate and the liquid crystal layer between first substrate and second substrate, first substrate comprises the pixel cell of many charging sweep traces, many electric discharges sweep trace, a plurality of data lines and multiple arrayed, each pixel cell corresponding charging sweep trace, an electric discharge sweep trace and a data line, each pixel cell comprises the first pixel electrode, second pixel electrode and act on the first switch and the second switch of the first pixel electrode and the second pixel electrode respectively, each pixel cell also comprises the 3rd switch and discharge circuit, each switch includes control end, input end and output terminal, first switch, the control end of second switch all connects with the charging sweep trace of this pixel cell corresponding, first switch, the input end of second switch all connects with the data line of this pixel cell corresponding, the output terminal of the first switch is connected with the first pixel electrode, the output terminal of second switch is connected with the second pixel electrode, the control end of the 3rd switch is connected with electric discharge sweep trace, the input end of the 3rd switch is connected with the first pixel electrode or the second pixel electrode, the output terminal of the 3rd switch is connected with discharge circuit, with when driving first pixel electrode and the second pixel electrode show, make between the first pixel electrode and the second pixel electrode, to form non-vanishing predeterminated voltage poor, second substrate comprises the first public electrode and the second public electrode, and the first public electrode is corresponding with the first pixel electrode, and to provide the first common electric voltage, the second public electrode is corresponding with the second pixel electrode, to provide the second common electric voltage.
Wherein, first public electrode and the second public electrode separate, first public electrode comprises multiple first sub-public electrode, second public electrode comprises multiple second sub-public electrode, first sub-public electrode and the second sub-public electrode separate, the orientation of multiple first pixel electrodes that length direction and the continuous adjacent of each first sub-public electrode are arranged is identical, to make each first sub-public electrode corresponding with a row or column first pixel electrode, the first common electric voltage required during to provide cooperation first pixel electrode to show image, the orientation of multiple second pixel electrodes that length direction and the continuous adjacent of each second sub-public electrode are arranged is identical, to make each second sub-public electrode corresponding with a row or column second pixel electrode, the second common electric voltage required during to provide cooperation second pixel electrode to show image.
Wherein, the region of all described first sub-public electrode peripheries, viewing area of corresponding described display panels in second substrate is electrically connected, and all described second sub-public electrodes are electrically connected in the region of the corresponding described periphery, viewing area of corresponding described display panels in second substrate.
Wherein, described first sub-public electrode and the second sub-public electrode are strip.
Wherein, described display panels comprises the first common electrode drive device and the second common electrode drive device, described first common electrode drive device is connected to input the first common electric voltage to described first public electrode with described first public electrode, and described second common electrode drive device is connected to input the second common electric voltage to described second public electrode with described second public electrode.
Wherein, first substrate also comprises one the 3rd public electrode, discharge circuit comprises the first electric capacity and the second electric capacity, when the input end of the 3rd switch is connected with one of them pixel electrode in the first pixel electrode, the second pixel electrode, one end of first electric capacity and one other pixel Electrode connection, the other end of the first electric capacity is connected with one end of the second electric capacity, and the other end of the second electric capacity connects the 3rd public electrode of first substrate, and the output terminal of the 3rd switch is connected between the first electric capacity and the second electric capacity; Wherein, to charging sweep trace input sweep signal to control the first switch and second switch conducting, to data line input data signal to drive the first pixel electrode and the display of the second pixel electrode, stop charging sweep trace input sweep signal subsequently, to electric discharge sweep trace input sweep signal to control the 3rd switch conduction, make to form predeterminated voltage difference between the first pixel electrode and the second pixel electrode under the effect of the first electric capacity and the second electric capacity.
Wherein, first substrate also comprises one the 3rd public electrode, discharge circuit is a discharge capacity, the input end of the 3rd switch is connected with the first pixel electrode or the second pixel electrode, the output terminal of the 3rd switch is connected with one end of discharge capacity, and the other end of discharge capacity connects the 3rd public electrode of first substrate; Wherein, to charging sweep trace input sweep signal to control the first switch and second switch conducting, to data line input data signal to drive the first pixel electrode and the display of the second pixel electrode, stop charging sweep trace input sweep signal subsequently, to electric discharge sweep trace input sweep signal to control the 3rd switch conduction, the size of controlled discharge electric capacity is to make to form predeterminated voltage difference between the first pixel electrode and the second pixel electrode.
Wherein, sweep trace, electric discharge sweep trace, the first switch, second switch, the 3rd switch and discharge circuit is charged all between the first pixel electrode and the second pixel electrode.
Wherein, the first switch, second switch and the 3rd switch are thin film transistor (TFT), and the control end of switch corresponds to the grid of thin film transistor (TFT), and the input end of switch corresponds to the source electrode of thin film transistor (TFT), and the output terminal of switch corresponds to the drain electrode of thin film transistor (TFT).
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of liquid crystal indicator, comprises the display panels of above-mentioned any one.
The invention has the beneficial effects as follows: the situation being different from prior art, display panels of the present invention, in first substrate, each pixel cell comprises the first pixel electrode and the second pixel electrode, the charging sweep trace of this pixel cell corresponding and data line drive the first pixel electrode and the display of the second pixel electrode respectively by the first switch and second switch, 3rd switch connects with the electric discharge sweep trace of this pixel cell corresponding, the input end of the 3rd switch is connected with the first pixel electrode or the second pixel electrode, the output terminal of the 3rd switch is connected with discharge circuit, when driving first pixel electrode and the display of the second pixel electrode, make to form non-vanishing predeterminated voltage between described first pixel electrode and the second pixel electrode by the effect of discharge circuit poor, namely make the first pixel electrode not identical with the voltage of the second pixel electrode, thus make corresponding first pixel electrode also not identical with the Liquid Crystal Molecules Alignment direction of the liquid crystal layer of the second pixel electrode, the color distortion with great visual angle can be reduced thus.In addition, second substrate comprises the first public electrode and the second public electrode, first public electrode is corresponding with the first pixel electrode, the first common electric voltage required during to provide cooperation first pixel electrode to show image, second public electrode and the second pixel electrode correspondence, the second common electric voltage required during to provide cooperation second pixel electrode to show image, required common electric voltage when can control cooperation first pixel electrode and the second pixel electrode display image thus respectively, low colour cast effect can be improved further thus, effectively can reduce image residue simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of display panels one embodiment of the present invention;
Fig. 2 is the structural representation of first substrate in Fig. 1;
Fig. 3 is the structural representation of the pixel electrode of first substrate and the public electrode of second substrate in Fig. 1;
Fig. 4 is the schematic diagram of liquid crystal layer liquid crystal deflecting element under the control of the pixel electrode of first substrate and the public electrode of second substrate in Fig. 1;
Fig. 5 is in another embodiment of display panels of the present invention, the structural representation of first substrate.
Embodiment
Below in conjunction with concrete embodiment and accompanying drawing, the present invention is described in detail.
Consult Fig. 1-Fig. 3, in an embodiment of display panels of the present invention, display panels comprises first basic 10, second substrate 11 and the liquid crystal layer between first substrate 10 and second substrate 11 12.Wherein, first substrate 10 is the array base palte in display panels, and second substrate 11 is the colored optical filtering substrates in display panels.
Further combined with the structural representation that Fig. 2, Fig. 2 are present embodiment first substrates 10.First substrate 10 comprises many charging sweep traces 101, many electric discharge sweep traces 102, a plurality of data lines 103 and multiple pixel cells 104 in arrayed.Many charging sweep traces 101 and electric discharge sweep trace 102 are alternately arranged in a column direction.Each pixel cell 104 and the sweep trace 101, that charges discharge sweep trace 102 and a data line 103 corresponding.Pixel cell 104 comprises the first pixel electrode 1041 and the second pixel electrode 1042, and acts on the first switch 1043 and the second switch 1044 of the first pixel electrode 1041 and the second pixel electrode 1042 respectively.First pixel electrode 1041 and the second pixel electrode 1042 arrange along column direction.Pixel cell 104 also comprises the 3rd switch 1045 and discharge circuit 1046.Wherein, the first pixel electrode 1041 and the second pixel electrode 1042 arrange along column direction.Each switch includes control end, input end and output terminal.The control end of the first switch 1043 and the control end of second switch 1044 are all connected with charging sweep trace 101, the input end of the first switch 1043 is all connected with data line 103 with the input end of second switch 1044, the output terminal of the first switch 1043 is connected with the first pixel electrode 1041, and the output terminal of second switch 1044 is connected with the second pixel electrode 1042.The control end of the 3rd switch 1045 is connected with electric discharge sweep trace 102, and the input end of the 3rd switch 1045 is connected with the second pixel electrode 1042, and the output terminal of the 3rd switch 1045 is connected with discharge circuit.In present embodiment, first substrate 10 also comprises the 3rd public electrode 105.Discharge circuit is that the output terminal of discharge capacity the 1046, three switch 1045 is connected with one end of discharge capacity 1046, and the other end of discharge capacity is connected with the 3rd public electrode 105 on first substrate 10.
Composition graphs 3, Fig. 3 is the structural representation of the pixel electrode of present embodiment first substrate 10 and the public electrode of second substrate 11.The quantity that second substrate 11 comprises mutually independently the first public electrode 111 and the second public electrode 112, first public electrode 111 and the second public electrode 112 is one.First public electrode 111 is corresponding with the first pixel electrode 1041, and to provide the first common electric voltage, the second public electrode 112 is corresponding with the second pixel electrode 1042, to provide the second common electric voltage.Particularly, it is only mark two in the first sub-public electrode 1111(figure of strip that the first public electrode 111 comprises multiple), it is only mark two in the second sub-public electrode 1121(figure of strip that the second public electrode 112 comprises multiple).The length direction of each first sub-public electrode 1111 is identical with the orientation of a line first pixel electrode 1041, namely the length direction of each first sub-public electrode 1111 is line direction, to make the corresponding first sub-public electrode 1111 of a line first pixel electrode 1041 in every a line pixel cell 104; The length direction of each second sub-public electrode 1121 is identical with the orientation of a line second pixel electrode 1042, namely the length direction of each second sub-public electrode 1121 is line direction, to make the corresponding second sub-public electrode 1121 of a line second pixel electrode 1042 in every a line pixel cell 104.First sub-public electrode 1111 and the second sub-public electrode 1121 mutually insulated independence, and its orientation is identical with the orientation of the second pixel electrode 1042 with the first pixel electrode 1041.In a column direction, the first pixel electrode 1041 and the second pixel electrode 1042 are alternately arranged, and the first sub-public electrode 1111 and the second sub-public electrode 1121 are also alternately arranged along column direction.In addition, the region of all first sub-public electrode 1111 peripheries, viewing area of corresponding display panels in second substrate 11 is electrically connected, and all first sub-public electrode 1111 entirety be electrically connected are as first public electrode 111; The region of all second sub-public electrode 1121 peripheries, viewing area of corresponding display panels in second substrate 11 is electrically connected, and all second sub-public electrode 1121 entirety be electrically connected are as second public electrode 112.In actual applications, when making the first public electrode 111 and second public electrode 112 of present embodiment, such as, when making the first public electrode 111, a monoblock transparency electrode can be used to make, the part of the viewing area corresponding to display panels in monoblock transparency electrode is divided into multiple strip electrode, multiple first sub-public electrode 1111 is obtained with correspondence, then do not do corresponding to the region of the periphery, viewing area of display panels in monoblock transparency electrode and split, be electrically connected by the transparency electrode of corresponding viewing area periphery to make multiple first sub-public electrode 1111.And the second public electrode 112 also can adopt similar method for making to obtain.
In the alternative, all first sub-public electrodes also can be electrically connected in the region of the viewing area of corresponding display panels in second substrate, all second sub-public electrodes also can be electrically connected in the region of the viewing area of corresponding display panels, do not limit herein.In addition, the first sub-public electrode and the second sub-public electrode can be also other shapes such as cylindricality or triangle, and are not limited to above-mentioned strip.
Display panels also comprises the first common electrode drive device and the second common electrode drive device.Wherein, the first common electrode drive device is connected with the first public electrode 111, is specially, and the first common electrode drive device is connected with the first sub-public electrode 1111, to input the first common electric voltage to the first sub-public electrode 1111.Second common electrode drive device is connected with the second public electrode 112, is specially, and the second common electrode drive device is connected with the second sub-public electrode 1121, to input the second common electric voltage to the second sub-public electrode.Wherein, the first common electrode drive device and the second common electrode drive device can adopt integrated driving IC chip to realize.In the alternative, also can apply corresponding common electric voltage to the first public electrode and the second public electrode respectively by the driving circuit using discrete component to form, this is not limited.In addition, also can obstructedly overdrive device or driving circuit drive the first public electrode and the second public electrode, but apply corresponding constant voltage signal to the first public electrode and the second public electrode respectively by two reference voltage sources.
Present embodiment, by the effect of discharge capacity 1046, forms non-vanishing voltage difference between first pixel electrode 1041 that can make and the second pixel electrode 1042, thus reaches low colour cast effect.And common electric voltage required when providing cooperation first pixel electrode 1041 and the second pixel electrode 1042 to show image respectively by the first public electrode 111 and the second public electrode 112, the low colour cast effect of display panels can be improved further, and be conducive to reducing afterimage phenomenon.
Particularly, when driving display panels display, the mode of lining by line scan is adopted to carry out the scanning of sweep trace.First sweep signal is applied to charging sweep trace 101, to control the first switch 1043 and second switch 1044 conducting, data line 103 is respectively by the first switch 1043 and second switch 1044 to the first pixel electrode 1041 and the second pixel electrode 1042 input data signal, and now the first pixel electrode 1041 is identical with the second pixel electrode 1042 current potential.And, the demand of image is shown according to the first pixel electrode 1041 and the second pixel electrode 1042, by the first common electrode drive device, the first common electric voltage is applied to the sub-public electrode 1111 of first on second substrate 11, the first common electric voltage required during to provide cooperation first pixel electrode 1041 to show image, and by the second common electrode drive device, the second common electric voltage is applied to the second sub-public electrode 1121, the second common electric voltage required during to provide cooperation second pixel electrode 1042 to show image.By the first sub-public electrode 1111 on charging sweep trace 101, data line 103 and second substrate 11 and the acting in conjunction of the second sub-public electrode 1121, thus the first pixel electrode 1041 and the second pixel electrode 1042 is driven to show.Subsequently, stop inputting sweep signal to charging sweep trace 101, sweep signal is inputted to control the 3rd switch 1045 conducting to electric discharge sweep trace 102.And connecting the second pixel electrode 1042 due to the input end of the 3rd on-off element 1045, output terminal connects discharge capacity 1046, and when the 3rd switch 1045 conducting, the second pixel electrode 1042 and discharge capacity 1046 are electrically connected.According to viewing angle requirements, the current potential size of controlled discharge electric capacity 1046, such as make the current potential of discharge capacity 1046 lower than the current potential of the second pixel electrode 1042, thus when the second pixel electrode 1042 and discharge capacity 1046 are electrically connected, the Partial charge of the second pixel electrode 1042 shifts, make the current potential of the second pixel electrode 1042 lower than the current potential of the first pixel electrode 1041, and then make to form non-vanishing voltage difference between the first pixel electrode 1041 and the second pixel electrode 1042.And the first pixel electrode 1041 is not identical with the current potential of the second pixel electrode 1042, as shown in Figure 4, make corresponding first pixel electrode 1041 of difference also not identical with the deflection of the liquid crystal molecule in the liquid crystal layer 103 of the second pixel electrode 1042, thus the heterochromia that can reduce with great visual angle, reach the effect bending down with great visual angle colour cast.
Further, according to the display demand of different visual angles, first pixel electrode 1041 is identical with the common electric voltage possibility of the second pixel electrode 1042 required cooperation when showing image also may not be identical, and pass through the first sub-public electrode 1111 and the second sub-public electrode 1121 of present embodiment, the best common electric voltage of required cooperation separately when can provide its display image to the first pixel electrode 1041 and the second pixel electrode 1042 respectively, instead of adopt the same public electrode of traditional use the first pixel electrode and the second pixel electrode to be provided to the mode of identical common electric voltage, the voltage difference that can control better between the first pixel electrode 1041 and the first sub-public electrode 1111 according to viewing angle requirements is thus not identical with the voltage difference between the second pixel electrode 1042 and the second sub-public electrode 112, make the yawing moment of the liquid crystal molecule of corresponding first pixel electrode 1041 not identical with the yawing moment of the liquid crystal molecule of corresponding second pixel electrode 1042, to improve low colour cast effect further.In addition, first pixel electrode 1041 and the second pixel electrode 1042 all can obtain the best common electric voltage of required cooperation when showing image, effectively can reduce the charge residue of the first pixel electrode 1041 and the second pixel electrode 1042, thus reduce afterimage phenomenon.
The charging sweep trace 101 of present embodiment, discharge sweep trace 102, first switch 1043, second switch 1044, the 3rd switch 1045 and the light tight region of discharge capacity 1046 all between the first pixel electrode 1041 and the second pixel electrode 1042, can improve the aperture opening ratio of display panels thus.In other embodiments, also can by charging sweep trace, electric discharge sweep trace and the light tight region of switch-linear hybrid between pixel cell.Such as, for adjacent two pixel cells along column direction, the charging sweep trace of this pixel cell corresponding, electric discharge sweep trace, three switches and discharge capacity are all between this pixel cell and a upper pixel cell adjacent with this pixel cell.
In addition, first switch 1043, second switch 1044 and the 3rd switch 1045 are film transistor device, the control end of switch corresponds to the grid of thin film transistor (TFT), and the input end of switch corresponds to the source electrode of thin film transistor (TFT), and the output terminal of switch corresponds to the drain electrode of thin film transistor (TFT).Certainly, in other embodiments, three switches 1043,1045,1046 also can be the gauge tap such as Darlington transistor, triode.
In alternate embodiments, the input end of the 3rd switch also can be connected with the first pixel electrode, by the effect of discharge capacity, the current potential of the first pixel electrode is changed, and then make to there is non-vanishing voltage difference between the first pixel electrode and the second pixel electrode, low colour cast effect can be reached equally.
In addition, in alternate embodiment, the first pixel electrode and the second pixel electrode also can arrange in the row direction, and now the length direction of the first sub-public electrode is column direction, each first sub-public electrode is corresponding with row first pixel electrode, to provide the first common electric voltage; The length direction of the second sub-public electrode is also column direction, and each second sub-public electrode is corresponding with row second pixel electrode, to provide the second common electric voltage.In addition, second substrate also can comprise multiple independently the first public electrode and multiple independently the second public electrode, and the first public electrode and the second public electrode separate.Now, the corresponding row of each first public electrode or a line first pixel electrode (being determined by the orientation of the first pixel electrode and the second pixel electrode), each first public electrode is connected with a first common electrode drive device; Corresponding row or a line second pixel electrode of each second public electrode, each second public electrode is connected with a second common electrode drive device.Can realize equally by the way applying corresponding common electric voltage to the first pixel electrode and the second pixel electrode separately.
In other alternate embodiment, first public electrode and the second public electrode also can be electrically connected, first public electrode and the second public electrode are electrically connected by rational reduction voltage circuit or booster circuit, the first common electric voltage and the second common electric voltage can be obtained respectively to make both simultaneously.In such cases, a driver or a reference voltage source is only needed to apply voltage signal.For example, by a driving circuit or reference voltage source, the first common electric voltage is applied to the first public electrode, first common electric voltage of the best required during to provide cooperation first pixel electrode to show image.Suppose that the second common electric voltage needed for the second pixel electrode is less than the first common electric voltage, the first public electrode and the second public electrode can be made to be electrically connected by divider resistance, so when driving circuit applies the first common electric voltage to the first public electrode, first common electric voltage diminishes at voltage after the step-down of divider resistance, and the best second common electric voltage needed for the second pixel electrode arranges the resistance size of divider resistance, thus make the second common electric voltage needed for the second public electrode acquisition, second common electric voltage of the best required during to provide cooperation second pixel electrode to show image.By the way, also can apply corresponding common electric voltage to the first public electrode and the second public electrode respectively, make the first pixel electrode and the second pixel electrode all can obtain the best common electric voltage of required cooperation when showing image.
In the above-described embodiment, discharge circuit is realized by a discharge capacity, consults Fig. 5, in another embodiment of display panels of the present invention, discharge circuit adopts two series capacitances to realize, and the second basic structure is identical with the structure of the second substrate of above-mentioned embodiment.The discharge circuit of present embodiment comprises the first electric capacity 2046 and the second electric capacity 2045.Wherein, the input end of the 3rd switch 2045 connects the second pixel electrode, and one end of the first electric capacity 2046 is connected with the first pixel electrode 2041, the other end of the first electric capacity 2046 is connected with one end of the second electric capacity 2047, and the other end of the second electric capacity 2047 is connected with the 3rd public electrode 205 on first substrate 20.The output terminal of the 3rd switch 2045 is connected between the first electric capacity 2046 and the second electric capacity 2047.
When driving display panels display, charging sweep trace 201 inputs sweep signal to control the first switch 2043 and second switch 2044 conducting, data line 203 is respectively by the first switch 2043 and second switch 2044 to the first pixel electrode 2041 and the second pixel electrode 2042 input data signal, and now the first pixel electrode 2041 is identical with the current potential of the second pixel electrode 2042.Type of drive for second substrate is identical with above-mentioned embodiment, does not repeat one by one herein.Subsequently, stop inputting sweep signal to charging sweep trace 201, sweep signal is inputted to control the 3rd switch 2045 conducting to electric discharge sweep trace 202, thus the second pixel electrode 2042 is electrically connected with discharge circuit.First electric capacity 2046 is connected with the first pixel electrode 2041 in the mode of series connection with the second electric capacity 2047, when data line 203 provides voltage signal (i.e. data-signal) to the first pixel electrode 2041, this voltage signal is applied in the branch road that the first electric capacity 2046 and the second electric capacity 2047 forms equally.According to the circuit theory of capacitances in series dividing potential drop, the voltage that voltage between first electric capacity 2046 and the second electric capacity 2047 inputs lower than data line 203, namely the voltage between the first electric capacity 2046 and the second electric capacity 2047 is lower than the voltage of the first pixel electrode 2041, also the voltage namely between the first electric capacity 2046 and the second electric capacity 2047 is lower than the voltage of the second pixel electrode 2041, thus when the 3rd switch 2045 conducting, there is transfer and make the current potential of the second pixel electrode 2041 lower than the current potential of the first pixel electrode 2041 in the Partial charge of the second pixel electrode 2041, make corresponding first pixel electrode 2041 of difference not identical with the yawing moment of the liquid crystal molecule of the second pixel electrode 2042 thus, thus reach low colour cast effect.
In addition, structure and the above-mentioned embodiment of present embodiment second substrate are similar, namely the first separate public electrode and the second public electrode is comprised, best common electric voltage required separately during to provide cooperation first pixel electrode 2041 and the second pixel electrode 2042 respectively to show image, the deflection of corresponding liquid crystal molecule can be controlled further according to viewing angle requirements, thus the low colour cast effect improved further with great visual angle, be conducive to reducing afterimage phenomenon simultaneously.
In other alternate embodiment, discharge circuit can be also a divider resistance, makes the input end of the 3rd switch connect the first pixel electrode, and output terminal connects one end of divider resistance, the other end ground connection of divider resistance.When the 3rd switch conduction, the first pixel electrode and divider resistance are electrically connected, and the voltage of the first pixel electrode is reducing after the dividing potential drop of divider resistance, thus makes to have non-vanishing voltage difference between the first pixel electrode and the second pixel electrode.
The present invention also provides an embodiment of liquid crystal indicator, comprises the display panels of above-mentioned arbitrary embodiment.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a display panels, is characterized in that, comprises first substrate, second substrate and the liquid crystal layer between described first substrate and second substrate;
Described first substrate comprises the pixel cell of many charging sweep traces, many electric discharges sweep trace, a plurality of data lines and multiple row-column arrangement, each described pixel cell corresponding charging sweep trace, an electric discharge sweep trace and a data line;
Each described pixel cell comprises the first pixel electrode, second pixel electrode and act on the first switch and the second switch of described first pixel electrode and the second pixel electrode respectively, each described pixel cell also comprises the 3rd switch and discharge circuit, each described switch includes control end, input end and output terminal, described first switch, the control end of second switch all connects with the charging sweep trace of this pixel cell corresponding, described first switch, the input end of second switch all connects with the data line of this pixel cell corresponding, the output terminal of described first switch is connected with described first pixel electrode, the output terminal of described second switch is connected with described second pixel electrode, the control end of described 3rd switch is connected with described electric discharge sweep trace, the input end of described 3rd switch is connected with described first pixel electrode or the second pixel electrode, the output terminal of described 3rd switch is connected with described discharge circuit, with when driving described first pixel electrode and the display of the second pixel electrode, make to form non-vanishing predeterminated voltage between described first pixel electrode and the second pixel electrode poor,
Described second substrate comprises the first public electrode and the second public electrode, described first public electrode and the second public electrode separate, described first public electrode is corresponding with described first pixel electrode, to provide the first common electric voltage, described second public electrode is corresponding with described second pixel electrode, to provide the second common electric voltage.
2. display panels according to claim 1, is characterized in that,
Described first public electrode comprises multiple first sub-public electrode, described second public electrode comprises multiple second sub-public electrode, described first sub-public electrode and described second sub-public electrode separate, the length direction of each described first sub-public electrode is identical with the orientation of multiple described first pixel electrode that continuous adjacent is arranged, to make each described first sub-public electrode corresponding with the first pixel electrode described in a row or column, with provide coordinate described first pixel electrode to show image time required the first common electric voltage, the length direction of each described second sub-public electrode is identical with the orientation of multiple described second pixel electrode that continuous adjacent is arranged, to make each described second sub-public electrode corresponding with the second pixel electrode described in a row or column, with provide coordinate described second pixel electrode to show image time required the second common electric voltage.
3. display panels according to claim 2, is characterized in that,
The region of all described first sub-public electrode peripheries, viewing area of corresponding described display panels in second substrate is electrically connected, and the region of all described second sub-public electrode peripheries, viewing area of corresponding described display panels in second substrate is electrically connected.
4. display panels according to claim 2, is characterized in that,
Described first sub-public electrode and the second sub-public electrode are strip.
5. display panels according to claim 1, is characterized in that,
Described display panels comprises the first common electrode drive device and the second common electrode drive device, described first common electrode drive device is connected to input the first common electric voltage to described first public electrode with described first public electrode, and described second common electrode drive device is connected to input the second common electric voltage to described second public electrode with described second public electrode.
6. display panels according to claim 1, is characterized in that,
Described first substrate also comprises one the 3rd public electrode, described discharge circuit comprises the first electric capacity and the second electric capacity, when the input end of described 3rd switch is connected with one of them pixel electrode in described first pixel electrode, the second pixel electrode, one end of described first electric capacity and one other pixel Electrode connection, the other end of described first electric capacity is connected with one end of described second electric capacity, the other end of described second electric capacity connects the 3rd public electrode of described first substrate, and the output terminal of described 3rd switch is connected between described first electric capacity and the second electric capacity;
Wherein, to described charging sweep trace input sweep signal to control described first switch and second switch conducting, to described data line input data signal to drive described first pixel electrode and the display of the second pixel electrode, stop described charging sweep trace input sweep signal subsequently, to described electric discharge sweep trace input sweep signal to control described 3rd switch conduction, make to form predeterminated voltage difference between described first pixel electrode and the second pixel electrode under the effect of described first electric capacity and the second electric capacity.
7. display panels according to claim 1, is characterized in that,
Described first substrate also comprises one the 3rd public electrode, described discharge circuit is a discharge capacity, the input end of described 3rd switch is connected with described first pixel electrode or the second pixel electrode, the output terminal of described 3rd switch is connected with one end of described discharge capacity, and the other end of described discharge capacity connects the 3rd public electrode of described first substrate;
Wherein, to described charging sweep trace input sweep signal to control described first switch and second switch conducting, to described data line input data signal to drive described first pixel electrode and the display of the second pixel electrode, stop described charging sweep trace input sweep signal subsequently, to described electric discharge sweep trace input sweep signal to control described 3rd switch conduction, control the size of described discharge capacity to make to form predeterminated voltage difference between described first pixel electrode and the second pixel electrode.
8. display panels according to claim 1, is characterized in that,
Described charging sweep trace, electric discharge sweep trace, the first switch, second switch, the 3rd switch and discharge circuit are all between described first pixel electrode and the second pixel electrode.
9. display panels according to claim 1, is characterized in that, comprising:
Described first switch, second switch and the 3rd switch are thin film transistor (TFT), the control end of described switch corresponds to the grid of described thin film transistor (TFT), the input end of described switch corresponds to the source electrode of described thin film transistor (TFT), and the output terminal of described switch corresponds to the drain electrode of thin film transistor (TFT).
10. a liquid crystal indicator, is characterized in that, comprises the display panels described in any one of claim 1-9.
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| CN201310269534.XA CN103323990B (en) | 2013-06-28 | 2013-06-28 | A kind of display panels and liquid crystal indicator |
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| CN104166287B (en) * | 2014-08-13 | 2016-11-16 | 深圳市华星光电技术有限公司 | Array base palte and liquid crystal indicator |
| CN204065626U (en) | 2014-10-27 | 2014-12-31 | 京东方科技集团股份有限公司 | Array base palte, display panel and display device |
| CN104297969A (en) * | 2014-10-28 | 2015-01-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel, discharging method thereof and display device |
| CN204758983U (en) * | 2015-05-26 | 2015-11-11 | 京东方科技集团股份有限公司 | Array substrate , liquid crystal display panel and liquid crystal disply device |
| US10754216B2 (en) | 2015-05-26 | 2020-08-25 | Boe Technology Group Co., Ltd. | Array substrate and driving method thereof, liquid crystal display panel, and liquid crystal display device |
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| CN107728350A (en) * | 2017-10-26 | 2018-02-23 | 惠科股份有限公司 | Display device |
| CN108922467B (en) | 2018-06-26 | 2019-12-31 | 惠科股份有限公司 | Pixel circuit and display panel |
| CN208888524U (en) * | 2018-11-09 | 2019-05-21 | 惠科股份有限公司 | Pixel driving circuit, image element structure and display panel |
| CN109215606B (en) * | 2018-11-12 | 2020-12-01 | 惠科股份有限公司 | Display panel driving method and device and computer equipment |
| CN109215607B (en) * | 2018-11-12 | 2021-02-26 | 惠科股份有限公司 | Display panel driving method and device and computer equipment |
| CN112684641B (en) * | 2021-01-12 | 2022-05-31 | Tcl华星光电技术有限公司 | Display panel |
| CN113064299A (en) * | 2021-03-16 | 2021-07-02 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel, preparation method thereof and liquid crystal display device |
| CN113189807B (en) * | 2021-05-14 | 2022-06-03 | 长沙惠科光电有限公司 | Array substrate, display device and driving method of array substrate |
| CN113406831B (en) * | 2021-06-21 | 2022-11-01 | 深圳市华星光电半导体显示技术有限公司 | Array substrate and display panel |
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