CN105741803A - Liquid crystal display drive method and circuit - Google Patents
Liquid crystal display drive method and circuit Download PDFInfo
- Publication number
- CN105741803A CN105741803A CN201610186068.2A CN201610186068A CN105741803A CN 105741803 A CN105741803 A CN 105741803A CN 201610186068 A CN201610186068 A CN 201610186068A CN 105741803 A CN105741803 A CN 105741803A
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- module
- scanning line
- liquid crystal
- source drive
- crystal display
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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
- G09G3/3614—Control of polarity reversal in general
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal display drive method and circuit. The method comprises the following steps: a frame is taken as a minimum period, gate electrode drive scanning lines in various odd rows are successively conducted firstly, and various source electrode drive scanning lines charge corresponding pixel modules; and, after charging of the odd-row pixel modules is finished, gate electrode drive scanning lines in various even rows are successively conducted, and the various source electrode drive scanning lines charge corresponding pixel modules. The liquid crystal display drive circuit comprises a gate electrode drive module, a source electrode drive module and a control module; and the gate electrode drive module is used to apply signals to the gate electrode drive scanning lines, and the source electrode drive module is used to apply signals to the source electrode drive scanning lines. Consumption is equal to power consumption of column overturn, and a point overturn reality effect is achieved at the same time; and the best picture quality is guaranteed, and power consumption is effectively reduced at the same time. The liquid crystal display drive method and circuit can be widely applied to the field of a display device.
Description
Technical field
The present invention relates to field of display devices, particularly relate to a kind of method for driving liquid crystal display and circuit.
Background technology
Display is the of paramount importance a kind of mode of man-machine interaction, and TFTLCD, because of its excellent display effect, ripe industrial chain, cheap price, becomes topmost material in current display screen.Distinguishing in a driving manner, TFTLCD liquid crystal drive is divided into frame upset mode, row upset mode, row upset mode, puts upset mode.The advantage of frame upset, row upset and row upset is that low in energy consumption, shortcoming is that display effect is not good, and crosstalk (cross-talk) easily occurs；In order to obtain the display effect of optimum, industrial quarters adopts a mode for upset mostly, but there is problems of, owing to each display pixel is different from the polarity of surrounding pixel, so the power consumption consumption of some upset is the one that in these several upset modes, power consumption is maximum.Such as Fig. 1, being the schematic diagram of a TFTLCD liquid crystal drive system, this system comprises grid electrode drive module, source drive module, controls module, power module and TFTLCD panel.Grid electrode drive module provides for the TFT gate of each row on panel and drives signal；Source drive module, is converted to analog voltage by video data, delivers to the source of TFT pipe on TFTLCD panel；Control module, produce timing control signal, drive module and source drive module for control gate so that they can collaborative work；Power module, is used for the supply voltage producing grid electrode drive module and source drive module needs.
Common practice is, grid electrode drive module generation continuous print drive waveforms, G1, G2, G3 ..., Gn, as shown in Figure 2；In order to obtain the display effect of optimum, it is desirable on panel, the polarity of each pixel is contrary with the polarity of surrounding pixel, the polar contribution of the output GTG that therefore source drive module produces is as shown in Figure 3.The waveform of raster data model and source drive is as shown in Figure 4, can be seen that, in this case, when driving the first row and the second row, the polarity of row to overturn once, and the cabling parasitic capacitance CLn that so row drive module corresponding has been accomplished by the change of a polarity, namely from positive polarity to negative polarity or from negative polarity to positive polarity, owing to the amplitude of change in voltage is very big, a lot of power consumptions can be consumed.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of effect that can realize some upset, method for driving liquid crystal display simultaneously low in energy consumption and circuit.
The technical solution adopted in the present invention is: the method for driving liquid crystal display of a kind of low-power consumption, described method includes: with a frame for the minimum period, first sequentially turning on the raster data model scanning line of each odd-numbered line, each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
Further, when described row and row switching, the polarity of source drive module does not overturn.
Further, described adjacent each display pixel is different from the polarity of surrounding pixel point.
A kind of liquid crystal display drive circuit, including: some picture element modules, it is used for showing image；Some raster data model scanning line and source drive scanning line, where each row picture element module shares a raster data model scanning line, each column picture element module shares a source drive scanning line, it is for implementing the method for driving liquid crystal display of above-mentioned low-power consumption, comprising: grid electrode drive module, source drive module, control module, described control module is connected with grid electrode drive module and source drive module respectively, and described grid electrode drive module applies signal for scanning line to raster data model；Described source drive module applies signal for scanning line to raster data model, described control module is used for performing: with a frame for the minimum period, first sequentially turning on the raster data model scanning line of each odd-numbered line, each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
Further, described picture element module includes pixel and TFT.
The invention has the beneficial effects as follows: the present invention can consume the power consumption being equivalent to row upset, realizes the real effect of some upset simultaneously, while ensureing best picture quality, effectively reduces power consumption.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the module map of liquid crystal display；
Fig. 2 is traditional method grid output waveform；
Fig. 3 is the polar contribution of source drive output GTG；
Fig. 4 is raster data model and source drive waveform；
Fig. 5 is grid electrode drive module output waveform of the present invention；
Fig. 6 is raster data model of the present invention and source drive output waveform.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
The method for driving liquid crystal display of a kind of low-power consumption, described method includes: with a frame for the minimum period, first sequentially turns on the raster data model scanning line of each odd-numbered line, and each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
Being further used as preferred embodiment, when described row and row switching, the polarity of source drive module does not overturn, and the switching of positive-negative polarity will not occur the electric charge above cabling parasitic capacitance, it is possible to the power consumption that effective minimizing consumes.
Being further used as preferred embodiment, described adjacent each display pixel is different from the polarity of surrounding pixel point, it is possible to effectively reduce crosstalk.
The present invention can save owing to polarity switches the power consumption consumption on the cabling parasitic capacitance CL caused frequently, as it is shown in figure 5, raster data model is not the mode of the progressive scan of traditional method, but first scan odd-numbered line G1, G3, G5, ... scan even number line G2, G4, G6 again ....Under the type of drive of this invention, when row and row switching, the polarity of source drive module does not overturn, and the switching of positive-negative polarity will not occur the electric charge above such cabling parasitic capacitance, it is possible to effectively reduce the power consumption consumed, as shown in Figure 6.It can be seen that adopt the new type of drive shown in this invention, it is possible to consume the power consumption being equivalent to row upset, it is achieved the effect of some upset, it is achieved the optimum of power consumption and display effect.
A kind of liquid crystal display drive circuit of low-power consumption, including: some picture element modules, it is used for showing image；Some raster data model scanning line and source drive scanning line, where each row picture element module shares a raster data model scanning line, each column picture element module shares a source drive scanning line, it is for implementing the method for driving liquid crystal display of above-mentioned low-power consumption, comprising: grid electrode drive module, source drive module, control module, described control module is connected with grid electrode drive module and source drive module respectively, and described grid electrode drive module applies signal for scanning line to raster data model；Described source drive module applies signal for scanning line to raster data model, described control module is used for performing: with a frame for the minimum period, first sequentially turning on the raster data model scanning line of each odd-numbered line, each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
Being further used as preferred embodiment, described picture element module includes pixel and TFT.
The invention has the beneficial effects as follows: adopt the present invention can consume the power consumption being equivalent to row upset, realize the real effect of some upset simultaneously.
It is above the preferably enforcement of the present invention has been illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the premise without prejudice to spirit of the present invention, and these equivalent deformation or replacement are all contained in the application claim limited range.
Claims (5)
1. a method for driving liquid crystal display, it is characterised in that described method includes:
With a frame for the minimum period, first sequentially turning on the raster data model scanning line of each odd-numbered line, each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
2. method for driving liquid crystal display according to claim 1, it is characterised in that: when described row and row switching, the polarity of source drive module does not overturn.
3. method for driving liquid crystal display according to claim 1, it is characterised in that: described adjacent each display pixel is different from the polarity of surrounding pixel point.
4. a liquid crystal display drive circuit, including: some picture element modules, it is used for showing image；Some raster data model scanning line and source drive scanning line, where each row picture element module shares a raster data model scanning line, each column picture element module shares a source drive scanning line, it is characterized in that, it is for implementing the method for driving liquid crystal display of the low-power consumption as described in any one of claims 1 to 3, comprising: grid electrode drive module, source drive module, control module, described control module is connected with grid electrode drive module and source drive module respectively, and described grid electrode drive module applies signal for scanning line to raster data model；Described source drive module applies signal for scanning line to raster data model, described control module is used for performing: with a frame for the minimum period, first sequentially turning on the raster data model scanning line of each odd-numbered line, each bar source drive scanning line is corresponding picture element module charging；After odd-line pixels module is charged, sequentially turning on the raster data model scanning line of each even number line, each bar source drive scanning line is corresponding picture element module charging.
5. liquid crystal display drive circuit according to claim 5, it is characterised in that: described picture element module includes pixel and TFT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186068.2A CN105741803A (en) | 2016-03-28 | 2016-03-28 | Liquid crystal display drive method and circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610186068.2A CN105741803A (en) | 2016-03-28 | 2016-03-28 | Liquid crystal display drive method and circuit |
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| CN105741803A true CN105741803A (en) | 2016-07-06 |
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| CN201610186068.2A Pending CN105741803A (en) | 2016-03-28 | 2016-03-28 | Liquid crystal display drive method and circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201582A1 (en) * | 2017-05-05 | 2018-11-08 | 惠科股份有限公司 | Display panel driving method, driving device and display device |
| CN109599071A (en) * | 2017-09-30 | 2019-04-09 | 咸阳彩虹光电科技有限公司 | A kind of liquid crystal display device and driving method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005300948A (en) * | 2004-04-13 | 2005-10-27 | Hitachi Displays Ltd | Display device and driving method therefor |
| CN101266767A (en) * | 2007-03-14 | 2008-09-17 | 三星电子株式会社 | Liquid crystal display |
| CN104252079A (en) * | 2014-09-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Array substrate, driving method thereof, display panel and display device |
-
2016
- 2016-03-28 CN CN201610186068.2A patent/CN105741803A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005300948A (en) * | 2004-04-13 | 2005-10-27 | Hitachi Displays Ltd | Display device and driving method therefor |
| CN101266767A (en) * | 2007-03-14 | 2008-09-17 | 三星电子株式会社 | Liquid crystal display |
| CN104252079A (en) * | 2014-09-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Array substrate, driving method thereof, display panel and display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201582A1 (en) * | 2017-05-05 | 2018-11-08 | 惠科股份有限公司 | Display panel driving method, driving device and display device |
| CN109599071A (en) * | 2017-09-30 | 2019-04-09 | 咸阳彩虹光电科技有限公司 | A kind of liquid crystal display device and driving method |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong city of Shenzhen province Baoan District Xixiang street guwu Sanwei Industrial Park, building 8 floor B tea Applicant after: Shenzhen City Yi vision Co Ltd Address before: 518000, Shaoguan, Guangdong, Xixiang street, Nanchang Road, Baoan District Industrial Park, B workshop 2, building five North Applicant before: SHENZHEN XINYI PHOTOELECTRIC CO., LTD. |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Fuzhong Inventor after: Tang Shouzhi Inventor after: Deng Hua Inventor after: Liang Sheng Inventor before: Wang Fuzhong Inventor before: Tang Shouzhi Inventor before: Deng Hua |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |