CN115273725B - Novel driving method of display panel - Google Patents
Novel driving method of display panel Download PDFInfo
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- CN115273725B CN115273725B CN202211015725.9A CN202211015725A CN115273725B CN 115273725 B CN115273725 B CN 115273725B CN 202211015725 A CN202211015725 A CN 202211015725A CN 115273725 B CN115273725 B CN 115273725B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Classifications
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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
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a novel driving method of a display panel, which takes two stages of gates as periods, and each period executes the following steps: before Gn is opened, demux R is opened, after Gn is opened, the red pixel controlled by Gn is written into the data provided by source, and after the preset time demux R is reduced to a low potential; demuxG rises to high level, the green pixel controlled by Gn writes data provided by source, and demuxG falls to low level over T1 time; demuxB rises to a high level and blue pixels controlled by Gn write data provided by source, gn is turned off after T1 time; gn+1 is turned on, at this time, demux B is still at a high level, the blue pixel controlled by Gn+1 is written into the data provided by source, and the demux B is reduced to a low level after a preset time; demuxG rises to a high level, the green pixel controlled by gn+1 writes data provided by source, and demuxG falls to a low level over T1 time; demux r rises to high and the red pixel controlled by gn+1 writes data provided by source, and gn+1 is turned off and demux r remains high for a T1 time. The method can reduce the power consumption and improve the charging rate of the display screen.
Description
Technical Field
The invention relates to the technical field of panel display, in particular to a novel driving method of a display panel.
Background
With the continued development of display technology, higher refresh rates and resolutions are often favored. For display screens, the full screen concept has been well-suited, and a narrower bezel tends to mean a higher screen duty cycle. For a display screen adopting demux technology, the lower frame of the display screen can be greatly reduced, but the work of demux time sequence also generates a part of power consumption, so that the charging rate of the display screen is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel driving method of a display panel, which can reduce power consumption and improve the charging rate of a display screen.
The invention is realized in the following way: a novel driving method of a display panel takes each two stages of gates as a period, and each period executes the following steps:
step S1, before Gn is opened, demux R is opened, after Gn is opened, data provided by source is written into red pixels controlled by Gn, and the demux R is reduced to a low potential after a preset time;
step S2, demuxG is raised to a high level, the green pixel controlled by Gn is written with data provided by source, and the demuxG is lowered to a low level after T1 time;
step S3, demux B rises to a high level, the blue pixel controlled by Gn writes data provided by source, gn is closed after T1 time, and demux B maintains the high level;
step S4, gn+1 is opened, at the moment, demux B is still at a high level, the blue pixel controlled by Gn+1 writes in data provided by source, and the data is reduced to a low level after a preset time demux B;
s5, demuxG is raised to a high level, the green pixel controlled by Gn+1 is written with data provided by source, and the demuxG is lowered to a low potential after T1 time;
step S6, demux R rises to high level, the red pixel controlled by Gn+1 writes data provided by source, gn+1 is turned off after T1 time, demux R maintains high level.
Further, the preset time is greater than or equal to T1.
The invention has the following advantages: by improving the demux time sequence, each time two-stage gates are opened, demux R/B only needs to be operated for 1 time, the total operation times of demux are reduced, the power consumption is effectively reduced, meanwhile, each time demux R/B is operated for 1 time, two gates are crossed, and the demux R/B is in high potential before the later gate is opened, the charging rate of pixels can be effectively improved, and the overall charging rate of a display screen is improved.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is a timing diagram of demux prior to modification.
FIG. 2 is a schematic diagram of a demux circuit in accordance with an embodiment of the invention.
Fig. 3 is a flowchart illustrating an implementation of a driving method of a novel display panel according to the present invention.
FIG. 4 is a timing diagram of a demux according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in FIG. 1, the conventional demux timing scheme is that when Gn is turned on, demux R rises to a high level, and red pixels controlled by Gn write data provided by source, and then falls to a low level over a T1 time. Then demux g rises to high level, the green pixel controlled by Gn writes data supplied from source, and demux g falls to low level over T1 time. Then demux b rises to high level, blue pixel controlled by Gn writes data supplied from source, demux r falls to low level over T1 time, and Gn is turned off finally. Gn+1 and Gn+2 are opened, the above steps are repeated. That is, when each stage gate is turned on, demux R/G/B needs to be turned on once, so that the operation of demux time sequence generates larger power consumption. In this regard, the invention realizes the reduction of power consumption by adjusting the opening time length and the sequence of demuxR/G/B:
as shown in fig. 2 to 4, the driving method of the novel display panel of the present invention uses each two-stage gate as a period, and each period performs the following steps:
step S1, before Gn is opened, demux R is opened, after Gn is opened, data provided by source is written into red pixels controlled by Gn, and the demux R is reduced to a low potential after a preset time; since demuxR is already at high potential before Gn is turned on, the charging rate of the red pixel can be effectively improved;
step S2, demuxG is raised to a high level, the green pixel controlled by Gn is written with data provided by source, and the demuxG is lowered to a low level after T1 time;
step S3, demux B rises to a high level, the blue pixel controlled by Gn writes data provided by source, gn is closed after T1 time, and demux B maintains the high level;
step S4, gn+1 is opened, at the moment, demux B is still at a high level, the blue pixel controlled by Gn+1 writes in data provided by source, and the data is reduced to a low level after a preset time demux B; because demuxB is already at high potential before Gn+1 is turned on, the charging rate of the blue pixel can be effectively improved;
s5, demuxG is raised to a high level, the green pixel controlled by Gn+1 is written with data provided by source, and the demuxG is lowered to a low potential after T1 time;
step S6, demux R rises to high level, the red pixel controlled by Gn+1 writes data provided by source, gn+1 is turned off after T1 time, demux R maintains high level.
When executed according to the method, the step S6 should be followed by:
step S7, gn+2 is opened, at this time demux R is still in high level, the red pixel controlled by Gn+2 writes in the data provided by source, because demux R is already in high potential before Gn+2 is opened, the charging rate of the red pixel can be effectively improved;
step S8, then demuxG is raised to a high level, the green pixel controlled by Gn+2 is written into data provided by source, and the demuxG is lowered to a low level after T1 time;
step S9, demux B rises to a high level, the blue pixel controlled by Gn+2 writes data provided by source, and after T1 time Gn+2 is closed, but demux B still maintains a high level;
step S10, gn+3 is opened, at this time demux B is still in high level, the blue pixel controlled by Gn+3 writes in the data provided by source, reduce to the low level after the preset time demux B; because demuxB is already at high potential before Gn+3 is opened, the charging rate of the blue pixel can be effectively improved;
step S11, demuxG is raised to a high level, the green pixel controlled by Gn+3 is written with data provided by source, and the demuxG is lowered to a low potential after T1 time;
step S12, demux R is raised to a high level, the red pixel controlled by Gn+3 is written into data provided by source, gn+3 is closed after T1 time, and demux R is maintained at a high level; and so on.
In a preferred embodiment, the preset time is greater than or equal to T1.
According to the invention, the demux time sequence is improved, so that each two-stage gate is opened, demux R/B only needs to be actuated for 1 time, the total actuation times of demux are reduced, the power consumption is effectively reduced, meanwhile, each time demux R/B is actuated for 1 time, two gates are crossed, and the demux R/B is in a high potential before the latter gate is opened, so that the charging rate of pixels can be effectively improved, and the overall charging rate of a display screen is improved.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (2)
1. A novel driving method of a display panel is characterized in that: taking each two stages of gates as a period, each period executes the following steps:
step S1, before Gn is opened, demux R is opened, after Gn is opened, data provided by source is written into red pixels controlled by Gn, and the demux R is reduced to a low potential after a preset time;
step S2, demuxG is raised to a high level, the green pixel controlled by Gn is written with data provided by source, and the demuxG is lowered to a low level after T1 time;
step S3, demux B rises to a high level, the blue pixel controlled by Gn writes data provided by source, gn is closed after T1 time, and demux B maintains the high level;
step S4, gn+1 is opened, at the moment, demux B is still at a high level, the blue pixel controlled by Gn+1 writes in data provided by source, and the data is reduced to a low level after a preset time demux B;
s5, demuxG is raised to a high level, the green pixel controlled by Gn+1 is written with data provided by source, and the demuxG is lowered to a low potential after T1 time;
step S6, demux R is raised to a high level, the red pixel controlled by Gn+1 is written into data provided by source, gn+1 is closed after T1 time, and demux R is maintained at a high level;
step S7, gn+2 is opened, at this time demuxR is still at high level, the red pixel controlled by Gn+2 writes the data provided by source;
step S8, then demuxG is raised to a high level, the green pixel controlled by Gn+2 is written into data provided by source, and the demuxG is lowered to a low level after T1 time;
step S9, demux B rises to a high level, the blue pixel controlled by Gn+2 writes data provided by source, and after T1 time Gn+2 is closed, but demux B still maintains a high level;
step S10, gn+3 is opened, at this time demux B is still in high level, the blue pixel controlled by Gn+3 writes in the data provided by source, reduce to the low level after the preset time demux B;
step S11, demuxG is raised to a high level, the green pixel controlled by Gn+3 is written with data provided by source, and the demuxG is lowered to a low potential after T1 time;
in step S12, demux R is raised to high level, the red pixel controlled by Gn+3 is written into the data provided by source, gn+3 is turned off after T1 time, and demux R is maintained at high level.
2. The driving method of a novel display panel according to claim 1, wherein: the preset time is greater than or equal to T1.
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| CN202211015725.9A CN115273725B (en) | 2022-08-24 | 2022-08-24 | Novel driving method of display panel |
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| CN202211015725.9A CN115273725B (en) | 2022-08-24 | 2022-08-24 | Novel driving method of display panel |
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| CN115273725A CN115273725A (en) | 2022-11-01 |
| CN115273725B true CN115273725B (en) | 2024-04-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400488A (en) * | 2001-07-27 | 2003-03-05 | 恩益禧三菱电机视讯有限公司 | Liquid crystal device |
| TW200807365A (en) * | 2006-07-26 | 2008-02-01 | Tpo Displays Corp | Method for driving a display panel and related apparatus |
| CN102855846A (en) * | 2011-05-16 | 2013-01-02 | 株式会社日本显示器东 | Display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395185B (en) * | 2008-02-19 | 2013-05-01 | Wintek Corp | Multiplexing driver circuit for liquid crystal display |
| TWI404028B (en) * | 2008-09-01 | 2013-08-01 | Au Optronics Corp | An image optimization method for the liquid crystal display device |
| TWI549107B (en) * | 2014-11-05 | 2016-09-11 | 群創光電股份有限公司 | Display devices |
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- 2022-08-24 CN CN202211015725.9A patent/CN115273725B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400488A (en) * | 2001-07-27 | 2003-03-05 | 恩益禧三菱电机视讯有限公司 | Liquid crystal device |
| TW200807365A (en) * | 2006-07-26 | 2008-02-01 | Tpo Displays Corp | Method for driving a display panel and related apparatus |
| CN102855846A (en) * | 2011-05-16 | 2013-01-02 | 株式会社日本显示器东 | Display device |
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| CN115273725A (en) | 2022-11-01 |
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