CN104299586B - A kind of LCD drive method, device circuit and liquid crystal display - Google Patents
A kind of LCD drive method, device circuit and liquid crystal display Download PDFInfo
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- CN104299586B CN104299586B CN201410561993.XA CN201410561993A CN104299586B CN 104299586 B CN104299586 B CN 104299586B CN 201410561993 A CN201410561993 A CN 201410561993A CN 104299586 B CN104299586 B CN 104299586B
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Abstract
The present invention relates to display terminal application, disclose a kind of LCD drive method, device circuit and liquid crystal display, by obtaining the opening of the first pixel, described first pixel is the previous pixel adjacent with the second pixel, described second pixel is between described first pixel and the 3rd pixel, obtain the opening of described 3rd pixel, described 3rd pixel is the later pixel adjacent with the second pixel, opening according to described first pixel and the opening of described 3rd pixel, drive described second pixel to open.Decrease gate control circuit, improve the refresh rate of LCD screen.
Description
Technical field
The present invention relates to display terminal application, particularly relate to a kind of LCD drive method, device circuit
And liquid crystal display.
Background technology
In current liquid crystal technology, each pixel of array base palte passes through source driving chip and raster data model
Chip coordinates control, is alternately opened by two chip chambers and transmits signal to pixel, and concrete action is source electrode
Driving chip controls the signal (data wire) of array base palte every string pixel, and grid drive chip controls
The unlatching of every one-row pixels, in image scanning, in order to provide signal to each pixel, needs to open this picture
The field effect transistor of vegetarian refreshments, after field effect transistor is opened, controls the signal that the source driving chip of these row provides, letter
Number level enters pixel by the field effect transistor opened, and makes liquid crystal deflect.Shown in Fig. 1 specific as follows,
For the equivalent driver circuit connection diagram of each pixel electrode, wherein, data wire and thin film transistor (TFT) T
Source electrode s be connected, the grid g of select lines thin film transistor (TFT) T be connected, the source electrode d of thin film transistor (TFT) T
Being connected with pixel electrode, wherein, Cgd is the parasitic capacitance between grid g and drain electrode d, this parasitic capacitance
Cgd thin film transistor (TFT) because of architectural characteristic intrinsic, CLCIt is in TFT substrate and CF (color
Filter, colored filter) equivalent capacity of liquid crystal layer between substrate, Cs is at TFT substrate and Vcom
Between one compensation electric capacity, the existence of this electric capacity Cs be in order to by electric discharge ensure equivalent capacity CLCOn
Compensation when voltage reduces, suitably to increase liquid crystal equivalent capacity CLCThe deflection side of the liquid crystal molecule in region
To the retention time.
The scan mode of available liquid crystal, needs every a line and every string pixel that control chip will be had to control
System, and too much control, introduce signal delay, thus reduce the refresh rate of picture.
Summary of the invention
The present invention provides a kind of LCD drive method, device circuit and liquid crystal display, solves prior art
The control of middle array base palte pixel driver is too much, causes the technical problem that the refresh rate of picture reduces.
It is an object of the invention to be achieved through the following technical solutions:
A kind of LCD drive method, including:
Obtaining the opening of the first pixel, described first pixel is the previous picture adjacent with the second pixel
Element, described second pixel is between described first pixel and the 3rd pixel；
Obtaining the opening of described 3rd pixel, described 3rd pixel is the later adjacent with the second pixel
Pixel；
Opening according to described first pixel and the opening of described 3rd pixel, drive described second
Pixel is opened.
A kind of LCD drive g device, including:
First acquisition module, for obtaining the opening of the first pixel, described first pixel is and the second picture
The previous pixel that element is adjacent, described second pixel is between described first pixel and the 3rd pixel；
Second acquisition module, for obtaining the opening of described 3rd pixel, described 3rd pixel is and the
The later pixel that two pixels are adjacent；
Logic control module, for the opening according to described first pixel and the unlatching of described 3rd pixel
State, drives described second pixel to open.
A kind of liquid crystal display drive circuit, including pilot drive circuit, data conductor drive circuit, multiple picture
Element controls assembly, and multiple pixel electrodes, described pilot drive circuit is connected with a plurality of pilot, institute
Stating data conductor drive circuit to be connected with a plurality of data conductor, multiple pixels control assembly, are separately positioned on this
A plurality of pilot intersects in the multiple pixel regions defined with this plurality of data conductor, described pixel control
Assembly processed is field effect transistor, including source electrode, grid and drain electrode, wherein, and described grid and described pilot
Drive circuit is connected, and described source electrode is connected with described data conductor, and described drain electrode is connected with described pixel electrode,
Described pilot drive circuit is for obtaining the opening of the first pixel, and described first pixel is and second
The previous pixel that pixel is adjacent, described second pixel is between described first pixel and the 3rd pixel；Obtain
Taking the opening of described 3rd pixel, described 3rd pixel is the later pixel adjacent with the second pixel；
Opening according to described first pixel and the opening of described 3rd pixel, drive described second pixel
Open.
A kind of liquid crystal display, including liquid crystal and liquid crystal display drive circuit, wherein, described liquid crystal display drive circuit bag
Include pilot drive circuit, data conductor drive circuit, multiple pixel control assembly, multiple pixel electrodes,
Described pilot drive circuit is connected with a plurality of pilot, described data conductor drive circuit and a plurality of number
Being connected according to wire, multiple pixels control assembly, are separately positioned on this plurality of pilot and lead with these many data
Line intersects in multiple pixel regions of being defined, and it is field effect transistor that described pixel controls assembly, including source electrode,
Grid and drain electrode, wherein, described grid is connected with described pilot drive circuit, and described source electrode is with described
Data conductor is connected, and described drain electrode is connected with described pixel electrode, and described pilot drive circuit is used for obtaining
Taking the opening of the first pixel, described first pixel is the previous pixel adjacent with the second pixel, described
Second pixel is between described first pixel and the 3rd pixel；Obtain the opening of described 3rd pixel,
Described 3rd pixel is the later pixel adjacent with the second pixel；Opening according to described first pixel
With the opening of described 3rd pixel, described second pixel is driven to open.
A kind of LCD drive method, device circuit and the liquid crystal display provided by the present invention, by obtaining
Taking the opening of the first pixel, described first pixel is the previous pixel adjacent with the second pixel, described
Second pixel, between described first pixel and the 3rd pixel, obtains the opening of described 3rd pixel,
Described 3rd pixel is the later pixel adjacent with the second pixel, according to the opening of described first pixel
With the opening of described 3rd pixel, described second pixel is driven to open.Decrease gate control circuit, carry
The high refresh rate of LCD screen.
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 enforcement
In example, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments of the present invention, for those of ordinary skill in the art, are not paying creative work
On the premise of, other accompanying drawing also can be obtained according to these accompanying drawings.
Fig. 1 is the equivalent driver circuit connection diagram of pixel electrode；
The application scenarios figure of a kind of LCD drive method that Fig. 2 provides for the embodiment of the present invention；
The flow chart of a kind of LCD drive method that Fig. 3 provides for the embodiment of the present invention；
The schematic diagram of a kind of liquid crystal drive gate circuit that Fig. 4 provides for the embodiment of the present invention；
The structural representation of a kind of LCD drive g device that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and
The present invention is further detailed explanation for detailed description of the invention.
The embodiment of the present invention provides the application scenarios figure of a kind of LCD drive method, as in figure 2 it is shown,
Illustrating as a example by 3 adjacent pixels, source electrode driver is connected to field effect transistor source electrode s by data wire,
To control the pixel electrode being connected with field-effect transistor drain electrode d.Control the source electrode driver output of each column
Signal, signal level by open field effect transistor enter pixel, make liquid crystal deflect.Field effect
The opening and closing of pipe are determined by the output of logic controller by grid level control, grid level, figure
2 as a example by the grid level of the second pixel, and the output of logic controller is connected to the grid of the second pixel,
Input is respectively the grid of the first pixel, the grid of the 3rd pixel and clock signal.
Based on the application scenarios shown in Fig. 2, as a example by the control of logic controller, introduce the present invention and implement
A kind of LCD drive method provided in example, as it is shown on figure 3, the method comprises the steps:
Step 301, obtain the opening of the first pixel；
Wherein, the first pixel, the second pixel and the 3rd pixel are adjacent three pixels, described second pixel
Between described first pixel and the 3rd pixel, this step can the actual field effect transistor grid obtaining the first pixel
First logic level of pole；
Step 302, obtain the opening of described 3rd pixel；
Wherein, described 3rd pixel is the later pixel adjacent with the second pixel, and this step can actual obtain
Second logic level of the fet gate of the 3rd pixel；
Step 303, according to the opening of described first pixel and the opening of described 3rd pixel, drive
Dynamic described second pixel is opened.
In actual application, when the first logic level obtained is high level, and described second logic level is low
During level, the fet gate of output high level to the second pixel, to open the field effect of described second pixel
Ying Guan so that source driving chip drives pixel electrode by data wire
Wherein, described method also includes: when first pixel that described second pixel is each column pixel, drive
Dynamic described second pixel is opened.When last pixel that described second pixel is each column pixel, feed back
Become signal, to carry out the display synchronization between each column pixel.
First pixel of each column pixel is opened by source driving chip control, often scans a frame picture, source electrode
Driving chip can according to previous frame picture scanned after image element row feedback sync status carry out re-synchronization,
The scanning of next frame picture is started after synchronously completing.And often last pixel of string pixel completes to open
Time, last pixel can feed back to control the source driving chip of these row, source by signal path
Pole driving chip can complete the feedback transmission speed to each row pixel according to each column signal scanning one frame picture
Carry out re-synchronization, the output order that control interface is correct.
Such as the schematic diagram of a kind of liquid crystal drive gate circuit that Fig. 4 provides for the embodiment of the present invention, the first port is even
Connecing the grid of the first pixel field effect transistor, the second port connects the grid of the 3rd pixel field effect transistor, outfan
Mouth is connected to the grid of the second pixel field effect transistor, and driving gate circuit carries out synchronizing control by clock control signal
System.The logic true value table that this drive circuit is corresponding is as follows:
| First port | Second port | Output port |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
| 0 | 1 | 0 |
| 0 | 0 | 0 |
The liquid crystal drive principle of the embodiment of the present invention is: the only previous pixel (the first pixel) of the second pixel
The when that be on and later pixel (the 3rd pixel) being to close, the second pixel just can obtain unlatching electricity
Pressure, after the second pixel is opened, next clock cycle the 3rd pixel can obtain the letter that previous pixel is opened
Breath, thus the 3rd pixel also can be opened, in like manner, the second pixel detection is opened to the 3rd pixel, from truth table
Knowable in, the second pixel fet gate is shutdown signal, and the second pixel is closed, by this control principle,
The pixel that can control string obtains signal level from source driving chip automatically, and source driving chip has only to
First pixel of enforced opening each column.
A kind of LCD drive method provided by the present invention, by obtaining the fet gate of the first pixel
The first logic level, obtain second logic level of fet gate of the 3rd pixel, when described first
Logic level is high level, and when described second logic level is low level, output high level is to the second pixel
Fet gate, to open the field effect transistor of described second pixel so that source driving chip by number
Pixel electrode is driven according to line.Decrease gate control circuit, improve the refresh rate of LCD screen.
The embodiment of the present invention also improves a kind of LCD drive g device, as it is shown in figure 5, include:
First acquisition module 510, for obtaining the opening of the first pixel, described first pixel is and the
The previous pixel that two pixels are adjacent, described second pixel is between described first pixel and the 3rd pixel；
Second acquisition module 520, for obtaining the opening of described 3rd pixel, described 3rd pixel is
The later pixel adjacent with the second pixel；
Logic control module 530, for according to the opening of described first pixel and described 3rd pixel
Opening, drives described second pixel to open.
Wherein, described Logic control module 530 is additionally operable to as first that described second pixel is each column pixel
During pixel, described second pixel is driven to open.
Described Logic control module 530 is additionally operable to when last picture that described second pixel is each column pixel
During element, feed back signal, to carry out the display synchronization between each column pixel.
A kind of liquid crystal display drive circuit, including pilot drive circuit, data conductor drive circuit, multiple picture
Element controls assembly, and multiple pixel electrodes, described pilot drive circuit is connected with a plurality of pilot, institute
Stating data conductor drive circuit to be connected with a plurality of data conductor, multiple pixels control assembly, are separately positioned on this
A plurality of pilot intersects in the multiple pixel regions defined with this plurality of data conductor, described pixel control
Assembly processed is field effect transistor, including source electrode, grid and drain electrode, wherein, and described grid and described pilot
Drive circuit is connected, and described source electrode is connected with described data conductor, and described drain electrode is connected with described pixel electrode,
Described pilot drive circuit is for obtaining the opening of the first pixel, and described first pixel is and second
The previous pixel that pixel is adjacent, described second pixel is between described first pixel and the 3rd pixel；Obtain
Taking the opening of described 3rd pixel, described 3rd pixel is the later pixel adjacent with the second pixel；
Opening according to described first pixel and the opening of described 3rd pixel, drive described second pixel
Open.
A kind of liquid crystal display, including liquid crystal and liquid crystal display drive circuit, wherein, described liquid crystal display drive circuit bag
Include pilot drive circuit, data conductor drive circuit, multiple pixel control assembly, multiple pixel electrodes,
Described pilot drive circuit is connected with a plurality of pilot, described data conductor drive circuit and a plurality of number
Being connected according to wire, multiple pixels control assembly, are separately positioned on this plurality of pilot and lead with these many data
Line intersects in multiple pixel regions of being defined, and it is field effect transistor that described pixel controls assembly, including source electrode,
Grid and drain electrode, wherein, described grid is connected with described pilot drive circuit, and described source electrode is with described
Data conductor is connected, and described drain electrode is connected with described pixel electrode, and described pilot drive circuit is used for obtaining
Taking the opening of the first pixel, described first pixel is the previous pixel adjacent with the second pixel, described
Second pixel is between described first pixel and the 3rd pixel；Obtain the opening of described 3rd pixel,
Described 3rd pixel is the later pixel adjacent with the second pixel；Opening according to described first pixel
With the opening of described 3rd pixel, described second pixel is driven to open.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive this
Invention can add the mode of required hardware platform by software and realize, naturally it is also possible to all by hard
Part is implemented, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, this
What background technology was contributed by bright technical scheme in whole or in part can be with the form of software product
Embodying, this computer software product can be stored in storage medium, such as ROM/RAM, magnetic
Dish, CD etc., including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform each embodiment of the present invention or some part of embodiment
Described method.
Above the present invention is described in detail, former to the present invention of specific case used herein
Reason and embodiment are set forth, and the explanation of above example is only intended to help to understand the present invention's
Method and core concept thereof；Simultaneously for one of ordinary skill in the art, according to the think of of the present invention
Think, the most all will change, in sum, this specification
Content should not be construed as limitation of the present invention.
Claims (10)
1. a LCD drive method, it is characterised in that including:
Obtaining the opening of the first pixel, described first pixel is the previous picture adjacent with the second pixel
Element, described second pixel is between described first pixel and the 3rd pixel；
Obtaining the opening of described 3rd pixel, described 3rd pixel is the later adjacent with the second pixel
Pixel；
When described first pixel is opened, and when described 3rd pixel is closed, described second pixel is driven to open.
Method the most according to claim 1, it is characterised in that described method also includes: when described
When second pixel is first pixel of each column pixel, described second pixel is driven to open.
Method the most according to claim 1 and 2, it is characterised in that described method also includes: when
When described second pixel is last pixel of each column pixel, feed back signal, to carry out each column pixel
Between display synchronize.
Method the most according to claim 3, it is characterised in that the unlatching of described acquisition the first pixel
State includes the first logic level obtaining the first pixel, the opening bag of described 3rd pixel of described acquisition
Include the second logic level obtaining the 3rd pixel.
Method the most according to claim 4, it is characterised in that described when described first pixel unlatching,
And during described 3rd pixel closedown, including:
When described first logic level is high level, and when described second logic level is low level, output height
Level is to the fet gate of the second pixel, to open the field effect transistor of described second pixel so that source electrode
Driving chip drives pixel electrode by data wire.
6. a LCD drive g device, it is characterised in that including:
First acquisition module, for obtaining the opening of the first pixel, described first pixel is and the second picture
The previous pixel that element is adjacent, described second pixel is between described first pixel and the 3rd pixel；
Second acquisition module, for obtaining the opening of described 3rd pixel, described 3rd pixel is and the
The later pixel that two pixels are adjacent；
Logic control module, for opening when described first pixel, and when described 3rd pixel is closed, drives
Described second pixel is opened.
Device the most according to claim 6, it is characterised in that described Logic control module is additionally operable to
When first pixel that described second pixel is each column pixel, described second pixel is driven to open.
8. according to the device described in claim 6 or 7, it is characterised in that described Logic control module is also
For, during when last pixel that described second pixel is each column pixel, having fed back signal, every to carry out
Display between row pixel synchronizes.
9. a liquid crystal display drive circuit, including pilot drive circuit, data conductor drive circuit, many
Individual pixel controls assembly, multiple pixel electrodes, and described pilot drive circuit is connected with a plurality of pilot,
Described data conductor drive circuit is connected with a plurality of data conductor, and multiple pixels control assembly, are separately positioned on
This plurality of pilot intersects in the multiple pixel regions defined with this plurality of data conductor, described pixel
Control assembly is field effect transistor, and including source electrode, grid and drain electrode, wherein, described grid is led with described control
Line drive circuit is connected, and described source electrode is connected with described data conductor, described drain electrode and described pixel electrode phase
Even, it is characterised in that described pilot drive circuit is for obtaining the opening of the first pixel, described
First pixel is the previous pixel adjacent with the second pixel, described second pixel be positioned at described first pixel with
Between 3rd pixel；Obtaining the opening of described 3rd pixel, described 3rd pixel is and the second pixel phase
Adjacent later pixel；When described first pixel is opened, and when described 3rd pixel is closed, drive described the
Two pixels are opened.
10. a liquid crystal display, including liquid crystal and liquid crystal display drive circuit, wherein, described liquid crystal drive electricity
Road includes that pilot drive circuit, data conductor drive circuit, multiple pixel control assembly, multiple pixels
Electrode, described pilot drive circuit is connected with a plurality of pilot, described data conductor drive circuit with
A plurality of data conductor is connected, and multiple pixels control assembly, are separately positioned on this plurality of pilot a plurality of with this
Data conductor intersects in the multiple pixel regions defined, and it is field effect transistor that described pixel controls assembly, bag
Including source electrode, grid and drain electrode, wherein, described grid is connected with described pilot drive circuit, described source
Pole is connected with described data conductor, and described drain electrode is connected with described pixel electrode, it is characterised in that described control
Conductor line driving circuit processed is for obtaining the opening of the first pixel, and described first pixel is and the second pixel phase
Adjacent previous pixel, described second pixel is between described first pixel and the 3rd pixel；Obtain described
The opening of the 3rd pixel, described 3rd pixel is the later pixel adjacent with the second pixel；When described
First pixel is opened, and when described 3rd pixel is closed, drives described second pixel to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561993.XA CN104299586B (en) | 2014-10-21 | 2014-10-21 | A kind of LCD drive method, device circuit and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561993.XA CN104299586B (en) | 2014-10-21 | 2014-10-21 | A kind of LCD drive method, device circuit and liquid crystal display |
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| Publication Number | Publication Date |
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| CN104299586A CN104299586A (en) | 2015-01-21 |
| CN104299586B true CN104299586B (en) | 2016-10-19 |
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| CN201410561993.XA Expired - Fee Related CN104299586B (en) | 2014-10-21 | 2014-10-21 | A kind of LCD drive method, device circuit and liquid crystal display |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101187207B1 (en) * | 2005-08-04 | 2012-10-02 | 삼성디스플레이 주식회사 | Liquid crystal display |
| CN101216649A (en) * | 2008-01-10 | 2008-07-09 | 京东方科技集团股份有限公司 | Crystal display device array substrate and driving method thereof |
| CN101482676B (en) * | 2008-01-11 | 2011-02-09 | 中华映管股份有限公司 | Display panel and its driving method |
| KR101303424B1 (en) * | 2008-06-12 | 2013-09-05 | 엘지디스플레이 주식회사 | Liquid Crystal Display and Driving Method thereof |
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