CN106154668A - Pixel driver system, liquid crystal display and image element driving method - Google Patents
Pixel driver system, liquid crystal display and image element driving method Download PDFInfo
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- CN106154668A CN106154668A CN201610821979.8A CN201610821979A CN106154668A CN 106154668 A CN106154668 A CN 106154668A CN 201610821979 A CN201610821979 A CN 201610821979A CN 106154668 A CN106154668 A CN 106154668A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 17
- 230000005611 electricity Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000010409 thin film Substances 0.000 description 5
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- 241000276489 Merlangius merlangus Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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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
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
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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
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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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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of pixel driver system, including the multiple first pixel electrode groups the most alternately arranged along same direction and multiple second pixel electrode group, described first pixel electrode group includes even number the first data wire, each described first data wire is connected to described in a row between pixel electrode and described data drive circuit, described second pixel electrode group includes even number the second data wire, each described second data wire is connected to described in a row between pixel electrode and described data drive circuit, in same frame picture, described data drive circuit applies opposite polarity bias voltage to each described pixel electrode of each described pixel electrode of described first pixel electrode group with described second pixel electrode group.The bias voltage putting on pixel electrode does not interferes with common electric voltage, and the pixel voltage that dark-state shows is stablized constant with the pressure reduction of common electric voltage, and the pixel electrode that dark-state shows normally shows dark-state effect, has stopped the phenomenon that display occurs that picture whitens.
Description
Technical field
The present invention relates to Display Technique field, especially relate to a kind of pixel driver system, liquid crystal display and pixel and drive
Dynamic method.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor-LCD, TFT-LCD) is flown in recent years
The development of speed and being widely applied, it is widely used in the display device of Portable movable electronic product, such as mobile phone, digital phase
The mobile products such as machine, palm PC, GPRS.Box-like is typically become with array base palte by panel of LCD by color membrane substrates, and two
Space between individual substrate is packaged with liquid crystal layer.Array base palte mainly includes scan line, data wire and pixel electrode, scan line
Vertical with data wire setting direction, pixel electrode is formed in the pixel region that scan line and data wire interlock, by scanning
Line signal conduction thin film transistor (TFT), the pixel electrode that the signal that data wire sends is sent to correspondence by thin film transistor (TFT) changes picture
Element electrode bias voltage thus control liquid crystal molecule deflection.If it is constant that liquid crystal molecule is fixed on some bias voltage for a long time
Changing, even if cancelling bias voltage, liquid crystal molecule cannot rotate because of electric field change to form different GTGs, in actual product again
The characteristic of liquid crystal molecule is avoided to be destroyed by the polarity of reversed bias voltage at set intervals.Special at a switch etc.
Under display pattern, the display state area of pixel electrode is divided on state of and dark-state, and the pixel electrode that on state of shows and dark-state show
Pixel electrode is staggered, data-driven by each pixel electrode is applied the bias voltage that varies in size realize on state of show and
Dark-state shows, while how ensureing the problem that liquid crystal polarity inversion overcomes cross-talk and flicker of display panel, it is to avoid each picture
The switching of the bias voltage size of element electrode is that current field of liquid crystal display can not be kept away on the impact of the common electric voltage of public electrode
The problem exempted from.
In prior art, the mode of polarity inversion is mainly row inversion mode, and each pixel electrode of every string passes through data
Line is connected and is jointly electrically connected to data drive circuit.Two adjacent row pixel drivers have opposite polarity in same frame picture
Bias voltage, although the problem overcoming cross-talk and flicker of display panel, but in turntable driving to thin film transistor (TFT)
Under the control of on off operating mode, data drive circuit applies bias voltage to the pixel electrode of every a line successively.Wherein put on phase
Bias voltage Changing Pattern on adjacent two row, every a line pixel electrode is identical, i.e. along column direction, and the pixel electricity of adjacent column
The bias voltage of pole increases simultaneously or reduces simultaneously, and the common electric voltage of public electrode is affected by the bias voltage of pixel electrode
Increasing or reduce, the pixel voltage that dark-state show is constant, therefore, causes pixel voltage and the pressure reduction of common electric voltage that dark-state shows
Becoming big, the pixel voltage that dark-state shows is the biggest with the pressure reduction of common electric voltage, and pixel electrode shows the brightest so that the picture that dark-state shows
Element electrode shows the brightest, and the problem that picture whitens occurs in display.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pixel driver system, liquid crystal display and pixel driver side
Method, in order to solve under the Special display patterns such as prior art midpoint switch, the bias voltage that dark-state shows and the pressure of common electric voltage
Difference becomes big, and the pixel electrode causing dark-state to show shows the brightest, and the problem that picture whitens occurs in display.
For solving above-mentioned technical problem, on the one hand, the present invention provides a kind of pixel driver system, including be electrically connected to each other
Data drive circuit and pixel electrode array, described pixel electrode array includes the most alternately arranged multiple along same direction
First pixel electrode group and multiple second pixel electrode group, described first pixel electrode group includes even number the first data wire, often
One described first data wire is connected to described in a row between pixel electrode and described data drive circuit, described second pixel electricity
Pole group includes even number the second data wire, and each described second data wire is connected to pixel electrode described in a row and described data
Between drive circuit, in same frame picture, described data drive circuit is to each described pixel electricity of described first pixel electrode group
Pole applies opposite polarity bias voltage with each described pixel electrode of described second pixel electrode group.
Further, described pixel electrode includes the first brightness electrode and the second brightness electrode, and each row's is described first bright
Degree electrode is the most alternately arranged with described second brightness electrode, the bias voltage of described first brightness electrode and the difference of common electric voltage
The absolute value of value is bigger with the absolute value of the difference of described common electric voltage than the bias voltage of described second brightness electrode, so that described
First brightness electrode display on state of, described second brightness electrode display dark-state.
Further, described data drive circuit includes that the first output drives and drives with the second output, and described first output is driven
The bias voltage polarity that dynamic and described second output drives output is contrary, and described first output is driven through described first data wire
Electrically connecting described first pixel electrode group, described second output is driven through described second data wire and electrically connects described second pixel
Electrode group.
Further, described pixel driver system also includes scan drive circuit and scan line, and described scan drive circuit leads to
Cross described scan line and electrically connect each described pixel electrode, and control described first data wire, described second data wire and described picture
On off operating mode between element electrode.
On the other hand, the present invention also provides for a kind of liquid crystal display, and described liquid crystal display includes public electrode, liquid crystal layer
And above-described pixel driver system, described liquid crystal layer is between described public electrode and described pixel electrode and passes through institute
State data drive circuit control liquid crystal deflection thus change image output.
On the other hand, the present invention also provides for a kind of image element driving method, including:
Thering is provided a kind of pixel driver system, described pixel driver system includes that the first output being electrically connected to each other drives and the
One pixel electrode group, the second output drive and the second pixel electrode group,
System board sends the digital signal comprising image information to sequential control circuit；
Described sequential control circuit sends polarity inversion signal to data drive circuit after processing described digital signal；
Described first output of described data drive circuit drives each pixel electrode to described first pixel electrode group to execute
Being biased voltage, described second output drives and applies and described second to each described pixel electrode of described second pixel electrode group
Output drives the opposite polarity bias voltage of output.
It is further, described that " described first output of described data drive circuit drives to described first pixel electrode group
Each pixel electrode applies bias voltage, and described second output drives each described pixel electrode to described second pixel electrode group to execute
Add and described second output drive output opposite polarity bias voltage " including: described first output drive odd-numbered frame with
Even frame applies opposite polarity described bias voltage to described first pixel electrode group, and described second output drives in odd-numbered frame
Opposite polarity described bias voltage is applied to described second pixel electrode group with even frame.
It is further, described that " described first output of described data drive circuit drives to described first pixel electrode group
Each pixel electrode applies bias voltage, and described second output drives each described pixel electrode to described second pixel electrode group to execute
Add and drive, with described second output, the opposite polarity bias voltage exported " including: described first output drives and described second
Output drives the most exportable on state of voltage and dark-state voltage, and described on state of voltage is described with the absolute value ratio of the difference of common electric voltage
Dark-state voltage is big with the absolute value of the difference of described common electric voltage, and described first output drives described first pixel electrode group
Each described pixel electrode is sequentially output described on state of voltage and described dark-state voltage, and described second output drives described second picture
The each described pixel electrode of element electrode group is sequentially output described on state of voltage and described dark-state voltage.
Further, described on state of voltage and the absolute value of the difference of common electric voltage are than described dark-state voltage and described common electrical
The absolute value of the difference of pressure is big.
It is further, described that " described sequential control circuit sends polarity to data drive circuit after processing described digital signal
Reverse signal " include, described sequential control circuit is also to scan drive circuit tranmitting data register signal, and described scan drive circuit is pressed
The on off operating mode of each described pixel electrode and described data drive circuit is individually controlled according to described clock signal.
Beneficial effects of the present invention is as follows: put on the biased electrical of each pixel electrode of each row in the first pixel electrode group
Pressure polarity is identical, puts on the bias voltage polarity of each pixel electrode of each row in the second pixel electrode group identical, improves
Problem during pixel electrode reversion, cross-talk occurring；First pixel electrode group is the most alternately arranged with the second pixel electrode group,
Put on each pixel electrode of the first pixel electrode group and the bias voltage polarity phase of each pixel electrode of the second pixel electrode group
Instead, the problem that flicker of display panel occurs is improved.The bias voltage of the pixel electrode of adjacent two rows in first pixel electrode group
Conversion trend is contrary and cancels out each other, and in the second pixel electrode group, the bias voltage conversion trend of the pixel electrode of adjacent two rows is also
Contrary and cancel out each other, the bias voltage putting on pixel electrode does not interferes with common electric voltage, the pixel voltage that dark-state show and
The pressure reduction of common electric voltage is stablized constant, and the pixel electrode that dark-state shows normally shows dark-state effect, has stopped display and picture has occurred
The phenomenon of face whiting.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other obvious mode of texturing is obtained according to these accompanying drawings.
The structural representation of the pixel driver system that Fig. 1 provides for the embodiment of the present invention one.
The bias voltage change schematic diagram of the image element driving method that Fig. 2 provides for the embodiment of the present invention one.
The flow chart of the image element driving method that Fig. 3 provides for the embodiment of the present invention one.
The structural representation of the pixel driver system that Fig. 4 provides for the embodiment of the present invention two.
The structural representation of the pixel driver system that Fig. 5 provides for the embodiment of the present invention three.
The schematic diagram of the liquid crystal display that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The structural representation of the pixel driver system that Fig. 1 provides for the embodiment of the present invention one, as it can be seen, pixel driver system
System includes data drive circuit 20 and pixel electrode 10 array being electrically connected to each other, as a example by pixel electrode 10 array of 8*4, as
Element electrode 10 array includes the most alternately arranged two the first pixel electrode group 12 and two the second pixel electrode groups 14, first
Pixel electrode group 12 includes two the first data wires 122, and each first data wire 122 connects string pixel electrode 10 and forms one
Individual first pixel electrode subgroup 120, i.e. one the first pixel electrode group 12 includes two the first pixel electrode subgroups 120；Second
Pixel electrode group 14 includes two the second data wires 142, and each second data wire 142 connects string pixel electrode 10 and forms one
Individual second pixel electrode subgroup 140, i.e. one the second pixel electrode group 14 includes two the second pixel electrode subgroups 140.Wherein,
In same frame picture, put on pixel electrode 10 and the picture of the second pixel electrode subgroup 140 of the first pixel electrode subgroup 120
The bias voltage polarity of element electrode 10 is contrary.Concrete, four the first data wires 122 in the present embodiment connect first row respectively
Pixel electrode 10, secondary series pixel electrode the 10, the 5th row pixel electrode 10 and the 6th row pixel electrode 10 form four the first pictures
Element electrode subgroup 120, wherein first row pixel electrode 10 and secondary series pixel electrode 10 form a first pixel electrode group 12,
5th row pixel electrode 10 and the 6th row pixel electrode 10 form a first pixel electrode group 12；Article four, the second data wire 142
Connect the 3rd row pixel electrode the 10, the 4th row pixel electrode the 10, the 7th row pixel electrode 10 and the 8th row pixel electrode 10 respectively
Forming four the second pixel electrode subgroups 140, wherein the 3rd row pixel electrode 10 and the 4th row pixel electrode 10 form one
Two pixel electrode groups 14, the 7th row pixel electrode 10 and the 8th row pixel electrode 10 form a first pixel electrode group 12.
If multiple adjacent each pixel electrode 10 polarity are contrary, and positive polarity and the display surface under negative polarity bias voltage
Plate display brightness is different, and when the positive-negative polarity of pixel electrode 10 switches, display floater can occur obvious scintillation；If it is many
Individual adjacent each pixel electrode 10 polarity is the most identical, then, during reversion, can go out between the pixel electrode 10 of opposed polarity
The phenomenon of existing cross-talk.In the present embodiment, put on the bias voltage of each pixel electrode 10 in the first pixel electrode group 12
Polarity is identical, and the bias voltage polarity putting on each pixel electrode 10 in the second pixel electrode group 14 is identical, improves pixel
The problem that cross-talk occurs when electrode 10 inverts；First pixel electrode group 12 and the second pixel electrode group 14 are alternately arranged successively
Row, put on each pixel electrode 10 of the first pixel electrode group 12 and the biasing of each pixel electrode 10 of the second pixel electrode group 14
Polarity of voltage is contrary, improves the problem that flicker of display panel occurs.
In the present embodiment, pixel electrode 10 includes biasing the first brightness electrode 102 and the second brightness electrode 104, column direction
On the first brightness electrode 102 be arranged alternately successively with the second brightness electrode 104, the first brightness electrode 102 on line direction with
Second brightness electrode 104 is arranged alternately successively.Concrete, on the column direction of each the first brightness electrode 102 and on line direction
Adjacent pixel electrode 10 is the second brightness electrode 104, on the column direction of each the second brightness electrode 104 and on line direction
Adjacent pixel electrode 10 is the first brightness electrode 102.Further, the bias voltage of the first brightness electrode 102 is with public
The absolute value of the difference of voltage is bigger with the absolute value of the difference of common electric voltage than the bias voltage of the second brightness electrode 104.A kind of
In embodiment, the bias voltage of the first brightness electrode 102 and the absolute value of the difference of common electric voltage are than the second brightness electrode 104
The big 6V of absolute value of difference of bias voltage and common electric voltage, certainly, in other embodiments, difference can also more greatly or more
Little.
Further, in conjunction with Fig. 2, in the first frame picture, drive circuit is to the first pixel electrode group 12 output cathode
Voltage, the first brightness electrode 102 and the bias voltage of the second brightness electrode 104 in the i.e. first pixel electrode group 12 are above public affairs
Common voltage, wherein, the bias voltage of the first brightness electrode 102 is on state of voltage, and the bias voltage of the second brightness electrode 104 is dark
State voltage, on state of voltage is 6V bigger than the pressure reduction of dark-state voltage Yu common electric voltage with the pressure reduction of common electric voltage.With first row pixel electricity
As a example by pole 10 and secondary series pixel electrode 10, data drive circuit 20 is electric to the pixel of the every a line of first row successively along column direction
When pole 10 exports bias voltage, bias voltage, from the beginning of on state of voltage, switches between on state of voltage and dark-state voltage successively, number
According to drive circuit 20 successively when the pixel electrode 10 of the every a line of first row exports bias voltage, bias voltage is opened from dark-state voltage
Beginning, switch successively between on state of voltage and dark-state voltage, first row and secondary series are at two pixel electrodes 10 points of same a line
It is not applied on state of voltage contrary with the bias voltage size variation rule of secondary series with dark-state voltage, i.e. first row, contrary
Bias voltage variation tendency is cancelled out each other, and common electric voltage will not be produced coupling influence and change the size of common electric voltage, dark-state
Voltage is stablized constant in the difference of common electric voltage, and the second brightness electrode 104 carries out normal dark-state and shows, has stopped display and has gone out
The phenomenon of existing picture whiting.
Meanwhile, in the first frame picture, drive circuit to the second pixel electrode group 14 output negative pole voltage, i.e.
The first brightness electrode 102 and the bias voltage of the second brightness electrode 104 in two pixel electrode groups 14 are below common electric voltage, its
In, the bias voltage of the first brightness electrode 102 is on state of voltage, and the bias voltage of the second brightness electrode 104 is dark-state voltage, bright
State voltage is 6V bigger than the pressure reduction of dark-state voltage Yu common electric voltage with the pressure reduction of common electric voltage.With the 3rd row pixel electrode 10 and the 4th
As a example by row pixel electrode 10, data drive circuit 20 exports to the 3rd pixel electrode 10 arranging every a line successively along column direction partially
When putting voltage, bias voltage, from the beginning of on state of voltage, switches, data drive circuit between on state of voltage and dark-state voltage successively
20 successively when the 4th pixel electrode 10 arranging every a line exports bias voltage, and bias voltage is from the beginning of dark-state voltage, on state of
Switching successively between voltage and dark-state voltage, the 3rd row are applied in bright with the 4th two pixel electrodes 10 being listed in same a line respectively
State voltage and dark-state voltage, the biased electrical buckling that the i.e. the 3rd row are contrary, contrary with the bias voltage size variation rule of the 4th row
Change trend is cancelled out each other, and common electric voltage will not be produced coupling influence and change the size of common electric voltage, and dark-state voltage is in public
The difference of voltage is stablized constant, and the second brightness electrode 104 carries out normal dark-state and shows, has stopped display and has occurred that picture whitens
Phenomenon.
In first pixel electrode group 12, the bias voltage conversion trend of two the first pixel electrode subgroups 120 is contrary and mutual
Offsetting, in the second pixel electrode group 14, the bias voltage conversion trend of two the second pixel electrode subgroups 140 is also contrary and mutual
Offsetting, when pixel electrode 10 and public electrode 30 cooperating, the bias voltage putting on pixel electrode 10 does not interferes with and changes
Becoming common electric voltage, the bias voltage that dark-state shows is stablized constant with the pressure reduction of common electric voltage, and the pixel electrode 10 that dark-state shows is just
Often display dark-state effect, has stopped the phenomenon that display occurs that picture whitens.
In the present embodiment, data drive circuit 20 includes that the first output drives 22 and second to export driving 24, and same frame is drawn
In face, the first output drives 22 to drive 24 bias voltage polarities exported contrary with the second output, and the first output drives 22 to pass through
First data wire 122 electrically connects the first pixel electrode subgroup 120, and the second output drives 24 to be electrically connected by the second data wire 142
Second pixel electrode subgroup 140.Concrete, the first output driving 22 output cathode bias voltages in the first frame picture, second
Output drives 24 output negative pole bias voltages, and in next frame picture, the first output drives 22 output negative pole bias voltages, the
Two outputs drive 24 output cathode bias voltages.
First output driving 22 puts on the bias voltage polarity phase of each pixel electrode 10 in the first pixel electrode group 12
With, the bias voltage polarity that the second output driving 24 puts on each pixel electrode 10 in the second pixel electrode group 14 is identical, changes
The problem being apt to cross-talk when pixel electrode 10 inverts；First pixel electrode group 12 and the second pixel electrode group 14 are successively
Alternately arranged, bias voltages and second output of the first output driving 22 output drive the bias voltage of 24 outputs on the contrary, improve
The problem that flicker of display panel occurs.
In the present embodiment, pixel driver system also includes scan drive circuit and scan line, and scan drive circuit is by sweeping
Retouch line and electrically connect each pixel electrode 10, and control leading between first data wire the 122, second data wire 142 and pixel electrode 10
Disconnected state.Further, the pixel electrode 10 of every a line is commonly connected to scan drive circuit, scan drive circuit by scan line
A line a line control each pixel electrode 10 and the first data wire 122 or on off operating mode of the second data wire 142 successively, specifically
, each scan line synchronization only keeps one-row pixels electrode 10 to connect with the first data wire 122 or the second data wire 142.
When switching the on off operating mode of one-row pixels electrode 10, data drive circuit 20 switches an on state of voltage and dark-state electricity simultaneously every time
Pressure, two pixel electrodes 10 adjacent on column direction are applied in different bias voltages at respective connected state.
Turntable driving and scan line control each pixel electrode 10 and connect with the first data wire 122 or the second data wire 142 successively
Logical, make the first brightness electrode 102 receive on state of voltage, the second brightness electrode 104 in order and receive dark-state voltage in order, first
Brightness electrode 102 and the second brightness electrode 104 alternation, each pixel electrode 10 is operated by work requirements.
The flow chart of the image element driving method that Fig. 3 provides for the embodiment of the present invention one, as it can be seen, image element driving method mistake
Journey is as follows:
1, system board sends the digital signal comprising image information to sequential control circuit.
Concrete, the digital signal that system board sends contains the image content information needing display, this picture material
Information sends to the different components of display device final after being analyzed and processed by multiple processing modules after entering sequential control circuit
Realize the display of image.
2, sequential control circuit sends polarity inversion signal to data drive circuit 20 after processing digital signal.
Concrete, sequential control circuit is also to scan drive circuit tranmitting data register signal, and scan drive circuit is according to clock
Signal individually controls the on off operating mode of each pixel electrode 10 and data drive circuit 20.Turntable driving and scan line control each
Pixel electrode 10 connects with the first data wire 122 or the second data wire 142 successively, makes the first brightness electrode 102 receive in order
On state of voltage, the second brightness electrode 104 receive dark-state voltage in order, and the first brightness electrode 102 is handed over the second brightness electrode 104
Temporary substitute is made, and each pixel electrode 10 is operated by work requirements.
3, the first output of data drive circuit 20 drives 22 to execute to each pixel electrode 10 of the first pixel electrode subgroup 120
Being biased voltage, the second output drives 24 to apply to drive with the second output to each pixel electrode 10 of the second pixel electrode subgroup 140
The opposite polarity bias voltage of dynamic 24 outputs.
Concrete, the first output drives 22 to apply polarity phase with even frame to the first pixel electrode subgroup 120 in odd-numbered frame
Anti-bias voltage, the second output drives 24 to apply opposite polarity in odd-numbered frame and even frame to the second pixel electrode subgroup 140
Bias voltage.The bias voltage polarity putting on each pixel electrode 10 in the first pixel electrode group 12 is identical, puts on
The bias voltage polarity of each pixel electrode 10 in two pixel electrode groups 14 is identical, improves when pixel electrode 10 inverts and hands over
The problem of fork crosstalk；First pixel electrode group 12 is the most alternately arranged with the second pixel electrode group 14, puts on the first pixel electricity
Each pixel electrode 10 of pole group 12 is contrary with the bias voltage polarity of each pixel electrode 10 of the second pixel electrode group 14, improves
The problem that flicker of display panel occurs.
Further, the first output drives 22 to drive 24 the most exportable on state of voltages and dark-state electricity with described second output
Pressure, on state of voltage is bigger with the absolute value of the difference of common electric voltage than dark-state voltage with the absolute value of the difference of common electric voltage, and first
Output drives 22 each pixel electrode 10 of the first pixel electrode subgroup 120 is sequentially output on state of voltage and dark-state voltage, and second
Output driving 24 is sequentially output on state of voltage and dark-state voltage to each pixel electrode 10 of the second pixel electrode subgroup 140.First
In pixel electrode group 12, the bias voltage conversion trend of two the first pixel electrode subgroups 120 is contrary and cancels out each other, the second picture
In element electrode group 14, the bias voltage conversion trend of two the second pixel electrode subgroups 140 is also contrary and cancels out each other, pixel electricity
When pole 10 and public electrode 30 cooperating, the bias voltage putting on pixel electrode 10 does not interferes with and changes common electric voltage,
The bias voltage that dark-state shows is stablized constant with the pressure reduction of common electric voltage, and the pixel electrode 10 that dark-state shows normally shows that dark-state is imitated
Really, the phenomenon that display occurs that picture whitens has been stopped.
The structural representation of the pixel driver system that Fig. 4 provides for the embodiment of the present invention two, as it can be seen, embodiment two with
The difference of embodiment one is, each first pixel electrode group 12 includes four the first pixel electrode subgroups 120, and each is years old
Two pixel electrode groups 14 include four the second pixel electrode subgroups 140, and each first pixel electrode subgroup 120 includes one
One data wire 122 and string pixel electrode 10, each second pixel electrode subgroup 140 include second data wire 142 with
String pixel electrode 10.
The pixel electrode 10 reversal frequency ratio embodiment one of the present embodiment is low, improves and occurs when pixel electrode 10 inverts
The effect of the problem of cross-talk is more preferable, but to improving the effect of flicker of display panel problem not as embodiment one, two kinds of enforcements
Example is respectively adapted to different use environment and requirement.
The structural representation of the pixel driver system that Fig. 5 provides for the embodiment of the present invention three, as it can be seen, embodiment three with
The difference of embodiment one is, the first data wire 122 connects one-row pixels electrode 10 and forms the first pixel electrode subgroup 120, even
Several adjacent pixel electrode 10 subgroups form the first pixel electrode group 12, and the second data wire 142 connects one-row pixels electrode 10
Forming the second pixel electrode subgroup 140, pixel electrode 10 subgroup that even number is adjacent forms the second pixel electrode group 14.
In the present embodiment, the first data wire 122 is transversely arranged with the second data wire 142, meanwhile, and scan line longitudinal arrangement,
Scan drive circuit controls pixel electrode 10 and first data wire 122 of every string or the second data wire 142 is sequentially communicated or breaks
Open.Embodiment three is different from the arrangement mode of first data wire the 122, second data wire 142 of embodiment one, has with embodiment one
There is identical using effect, but go for different use environment or use requirement.The pixel that such as embodiment one provides
Data drive circuit 20 is installed at the up or down frame of liquid crystal display by electrode 10, and scan drive circuit is installed on liquid crystal
Show at the left or right frame of device, and data drive circuit 20 is installed on liquid crystal display by the pixel electrode 10 that embodiment two provides
Up or down frame at, scan drive circuit is installed at the up or down frame of liquid crystal display.
The schematic diagram of the liquid crystal display that Fig. 6 provides for the embodiment of the present invention, as it can be seen, liquid crystal display includes public
Electrode 30, liquid crystal layer 40 and pixel driver system, liquid crystal layer 40 is between public electrode 30 and pixel electrode 10 and by number
Control liquid crystal deflection according to drive circuit 20 thus change image output.
Further, liquid crystal display also includes backlight module, and liquid crystal molecule itself is the most luminous, needs backlight module to provide
Backlight, the angle changing liquid crystal molecule deflection can change the backlight light penetration through display floater, thus change
The light and shade of liquid crystal display display image and content.
The bias voltage polarity putting on each pixel electrode 10 in the first pixel electrode group 12 is identical, puts on the second picture
The bias voltage polarity of each pixel electrode 10 in element electrode group 14 is identical, improves to occur when pixel electrode 10 inverts to intersect and goes here and there
The problem disturbed；First pixel electrode group 12 is the most alternately arranged with the second pixel electrode group 14, puts on the first pixel electrode group
Each pixel electrode 10 of 12 is contrary with the bias voltage polarity of each pixel electrode 10 of the second pixel electrode group 14, improves generation
The problem of flicker of display panel.The bias voltage conversion of even number the first pixel electrode subgroup 120 in first pixel electrode group 12
Trend is contrary and cancels out each other, the bias voltage conversion of even number the second pixel electrode subgroup 140 in the second pixel electrode group 14
Trend is also contrary and cancels out each other, and when pixel electrode 10 and public electrode 30 cooperating, puts on the biasing of pixel electrode 10
Voltage does not interferes with and changes common electric voltage, and the bias voltage that dark-state shows is stablized constant with the pressure reduction of common electric voltage, and dark-state shows
The pixel electrode 10 shown normally shows dark-state effect, has stopped the phenomenon that display occurs that picture whitens.
Above disclosed it is only several preferred embodiment of the present invention, certainly can not limit the power of the present invention with this
Profit scope, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and weighs according to the present invention
Profit requires the equivalent variations made, and still falls within the scope that invention is contained.
Claims (10)
1. a pixel driver system, including the data drive circuit being electrically connected to each other and pixel electrode array, it is characterised in that
Described pixel electrode array includes the multiple first pixel electrode groups the most alternately arranged along same direction and multiple second picture
Element electrode group, described first pixel electrode group includes even number the first data wire, and each described first data wire is connected to one
Arranging between described pixel electrode and described data drive circuit, described second pixel electrode group includes even number the second data wire,
Each described second data wire is connected to described in a row between pixel electrode and described data drive circuit, same frame picture
In, described data drive circuit is to each described pixel electrode of described first pixel electrode group and described second pixel electrode group
Each described pixel electrode applies opposite polarity bias voltage.
Pixel driver system the most according to claim 1, it is characterised in that described pixel electrode includes the first brightness electrode
With the second brightness electrode, the described first brightness electrode of each row is the most alternately arranged with described second brightness electrode, and described
The bias voltage of one brightness electrode and the absolute value of the difference of common electric voltage are than the bias voltage of described second brightness electrode and institute
The absolute value of the difference stating common electric voltage is big, so that described first brightness electrode display on state of, described second brightness electrode shows
Dark-state.
Pixel driver system the most according to claim 2, it is characterised in that described data drive circuit includes the first output
Driving and drive with the second output, the bias voltage polarity that described first output drives with described second output drives output is contrary,
Described first output is driven through described first data wire and electrically connects described first pixel electrode group, and described second output drives logical
Cross described second data wire and electrically connect described second pixel electrode group.
Pixel driver system the most according to claim 1, it is characterised in that described pixel driver system also includes that scanning is driven
Galvanic electricity road and scan line, described scan drive circuit electrically connects each described pixel electrode by described scan line, and controls described
First data wire, on off operating mode between described second data wire and described pixel electrode.
5. a liquid crystal display, it is characterised in that described liquid crystal display includes public electrode, liquid crystal layer and claim 1
To the pixel driver system described in 4 any one, described liquid crystal layer is between described public electrode and described pixel electrode and leads to
Cross described data drive circuit control liquid crystal deflection thus change image output.
6. an image element driving method, it is characterised in that including:
Thering is provided a kind of pixel driver system, described pixel driver system includes that the first output being electrically connected to each other drives and the first picture
Element electrode group, the second output drive and the second pixel electrode group,
System board sends the digital signal comprising image information to sequential control circuit；
Described sequential control circuit sends polarity inversion signal to data drive circuit after processing described digital signal；
Described first output of described data drive circuit drives and applies partially to each pixel electrode of described first pixel electrode group
Putting voltage, described second output drives and applies and described second output to each described pixel electrode of described second pixel electrode group
Drive the opposite polarity bias voltage of output.
Image element driving method the most according to claim 6, it is characterised in that described " described data drive circuit described
First output drives and applies bias voltage to each pixel electrode of described first pixel electrode group, and described second output drives to institute
The each described pixel electrode stating the second pixel electrode group applies to drive, with described second output, the opposite polarity biased electrical exported
Pressure " including: described first output drives and applies opposite polarity institute with even frame to described first pixel electrode group in odd-numbered frame
Stating bias voltage, described second output drives and applies opposite polarity with even frame to described second pixel electrode group in odd-numbered frame
Described bias voltage.
Image element driving method the most according to claim 7, it is characterised in that described " described data drive circuit described
First output drives and applies bias voltage to each pixel electrode of described first pixel electrode group, and described second output drives to institute
The each described pixel electrode stating the second pixel electrode group applies to drive, with described second output, the opposite polarity biased electrical exported
Pressure " including: described first output drives and drives the most exportable on state of voltage and dark-state voltage, described on state of with described second output
Voltage is bigger with the absolute value of the difference of described common electric voltage than described dark-state voltage with the absolute value of the difference of common electric voltage, described
First output drive each described pixel electrode of described first pixel electrode group is sequentially output described on state of voltage with described secretly
State voltage, described second output drives each described pixel electrode to described second pixel electrode group to be sequentially output described on state of electricity
Pressure and described dark-state voltage.
Image element driving method the most according to claim 8, it is characterised in that described on state of voltage and the difference of common electric voltage
Absolute value bigger with the absolute value of the difference of described common electric voltage than described dark-state voltage.
Image element driving method the most according to claim 6, it is characterised in that described " described sequential control circuit processes institute
Polarity inversion signal is sent to data drive circuit after stating digital signal " include, described sequential control circuit is also to turntable driving
Circuit tranmitting data register signal, described scan drive circuit according to described clock signal individually control each described pixel electrode with
The on off operating mode of described data drive circuit.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749282A (en) * | 2017-11-03 | 2018-03-02 | 惠科股份有限公司 | Display panel and display device |
| TWI666489B (en) * | 2018-01-10 | 2019-07-21 | 奇景光電股份有限公司 | Display device and image processing method |
| CN110346986A (en) * | 2018-04-02 | 2019-10-18 | 夏普株式会社 | Liquid crystal display device and electronic equipment |
| US10504460B2 (en) | 2017-12-14 | 2019-12-10 | Himax Technologies Limited | Display device and image processing method |
| CN110827740A (en) * | 2019-10-28 | 2020-02-21 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN111739452A (en) * | 2020-06-16 | 2020-10-02 | 深圳市华星光电半导体显示技术有限公司 | Method and device for debugging dark state voltage of liquid crystal display panel and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102473389A (en) * | 2009-07-10 | 2012-05-23 | 夏普株式会社 | Liquid crystal driving circuit and liquid crystal display device |
| JP2013205464A (en) * | 2012-03-27 | 2013-10-07 | Japan Display Inc | Liquid crystal display device and manufacturing method |
| CN105096899A (en) * | 2015-09-22 | 2015-11-25 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and liquid crystal display device |
| CN105321482A (en) * | 2014-06-03 | 2016-02-10 | 株式会社日本显示器 | Display device |
| CN105405416A (en) * | 2014-09-05 | 2016-03-16 | 三星显示有限公司 | Display apparatus and method of driving the same |
-
2016
- 2016-09-13 CN CN201610821979.8A patent/CN106154668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102473389A (en) * | 2009-07-10 | 2012-05-23 | 夏普株式会社 | Liquid crystal driving circuit and liquid crystal display device |
| JP2013205464A (en) * | 2012-03-27 | 2013-10-07 | Japan Display Inc | Liquid crystal display device and manufacturing method |
| CN105321482A (en) * | 2014-06-03 | 2016-02-10 | 株式会社日本显示器 | Display device |
| CN105405416A (en) * | 2014-09-05 | 2016-03-16 | 三星显示有限公司 | Display apparatus and method of driving the same |
| CN105096899A (en) * | 2015-09-22 | 2015-11-25 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and liquid crystal display device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749282A (en) * | 2017-11-03 | 2018-03-02 | 惠科股份有限公司 | Display panel and display device |
| US11250799B2 (en) | 2017-11-03 | 2022-02-15 | HKC Corporation Limited | Display panel and display device suitable for low color cast display |
| US10504460B2 (en) | 2017-12-14 | 2019-12-10 | Himax Technologies Limited | Display device and image processing method |
| TWI666489B (en) * | 2018-01-10 | 2019-07-21 | 奇景光電股份有限公司 | Display device and image processing method |
| CN110346986A (en) * | 2018-04-02 | 2019-10-18 | 夏普株式会社 | Liquid crystal display device and electronic equipment |
| CN110827740A (en) * | 2019-10-28 | 2020-02-21 | 深圳市华星光电技术有限公司 | Display panel and display device |
| WO2021082072A1 (en) * | 2019-10-28 | 2021-05-06 | Tcl华星光电技术有限公司 | Display panel and display device |
| US11270625B2 (en) | 2019-10-28 | 2022-03-08 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel and display device |
| CN111739452A (en) * | 2020-06-16 | 2020-10-02 | 深圳市华星光电半导体显示技术有限公司 | Method and device for debugging dark state voltage of liquid crystal display panel and storage medium |
| US11830450B2 (en) | 2020-06-16 | 2023-11-28 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Method for adjusting dark-state voltage applied on liquid crystal display panel, device, and storage medium |
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|---|---|
| CN106154668B (en) | 2020-02-18 |
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