CN106409257B - A kind of driving method and its driving circuit of display panel - Google Patents
A kind of driving method and its driving circuit of display panel Download PDFInfo
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- CN106409257B CN106409257B CN201610982312.6A CN201610982312A CN106409257B CN 106409257 B CN106409257 B CN 106409257B CN 201610982312 A CN201610982312 A CN 201610982312A CN 106409257 B CN106409257 B CN 106409257B
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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
-
- 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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
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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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of driving method and its driving circuits, frame picture includes odd field picture and even field picture, the driving method includes: successively to be scanned to the odd-numbered line grid line for being located at odd field picture, has preset first time interval between the scanning of adjacent odd-numbered line grid line；The even number line grid line for being located at even field picture is successively scanned, there is preset second time interval between the scanning of adjacent even number line grid line.First time interval is arranged between the scanning of adjacent odd-numbered line grid line in technical solution provided by the invention, the second time interval is set between the scanning of adjacent even number line grid line, to be multiple first time intervals and multiple first time intervals by the time interval even partition between the scanning of the odd-numbered line grid line among the prior art and the scanning of even number line grid line.Time interval between scan period, which be uniformly distributed, can avoid the occurrence of scintillation, to improve the display quality of display picture.
Description
Technical field
The present invention relates to field of display technology more particularly to the driving methods and its driving circuit of a kind of display panel.
Background technique
Current thin film transistor (TFT) (thin-film transistor, referred to as TFT) liquid crystal display (liquid
Crystal display, referred to as LCD) it is driven by low frame per second technology (low frame frequency, referred to as LFF)
It further include the horizontal blanking interval for not showing image other than during the normal display of display image within a frame picture when dynamic
Between (horizontal blanking time) and vertical blanking period (vertical blanking time).Although blanking
Period is the blank time for not showing image, and driving circuit still continues output signal within this period, that is to say, that drives
Dynamic circuit still constantly consumes electric current, virtually improves the consumption power of driving circuit.To solve the above problems, existing skill
Art controls the power consumption of vertical blanking period, leads to flashing (flicker) occur, reduces display quality.
Summary of the invention
To solve the above problems, the present invention provides the driving method and its driving circuit of a kind of display panel, at least partly
Solve the problems, such as that power consumption is high among the prior art and display picture flashes.
For this purpose, the present invention provides a kind of driving method of display panel, frame picture includes that odd field picture and even field are drawn
Face, the driving method include:
The odd-numbered line grid line for being located at odd field picture is successively scanned, is had between the scanning of adjacent odd-numbered line grid line
There is preset first time interval；
The even number line grid line for being located at even field picture is successively scanned, is had between the scanning of adjacent even number line grid line
There is preset second time interval.
Optionally, the first time interval is identical as second time interval.
Optionally, the first buffer level of the first time interval and second time interval is 0%-30%.
Optionally, first buffer level is 0%.
It optionally, is third time interval to the pulse width that odd-numbered line grid line is scanned, several rows of grid lines of antithesis carry out
The pulse width of scanning is the 4th time interval, and the third time interval is identical as the 4th time interval, the third
Second buffer level of time interval and the 4th time interval is 60%-100%.
Optionally, second buffer level is 90%-100%.
Optionally, second buffer level is 90%.
Optionally, second buffer level is 60%-80%.
Optionally, second buffer level is 60%.
The present invention also provides a kind of driving circuit of display panel, frame picture includes odd field picture and even field picture,
The driving circuit includes:
First scanning element, for being successively scanned to the odd-numbered line grid line for being located at odd field picture, adjacent odd number
There is preset first time interval between the scanning of row grid line；
Second scanning element, for being successively scanned to the even number line grid line for being located at even field picture, adjacent even number
There is preset second time interval between the scanning of row grid line.
The present invention have it is following the utility model has the advantages that
Among driving method and its driving circuit provided by the invention, frame picture includes that odd field picture and even field are drawn
Face, the driving method include: successively to be scanned to the odd-numbered line grid line for being located at odd field picture, adjacent odd-numbered line grid line
Scanning between have preset first time interval；The even number line grid line for being located at even field picture is successively scanned, phase
There is preset second time interval between the scanning of adjacent even number line grid line.Technical solution provided by the invention is in adjacent surprise
First time interval is set between the scanning of several rows of grid lines, between the second time was set between the scanning of adjacent even number line grid line
Every so that the time interval between the scanning of the odd-numbered line grid line among the prior art and the scanning of even number line grid line uniformly be divided
It is segmented into multiple first time intervals and multiple first time intervals.Time interval between scan period be uniformly distributed can be with
Scintillation is avoided the occurrence of, to improve the display quality of display picture.In addition, technical solution provided by the invention passes through buffering
The horizontal control technology of device (buffer level control, referred to as BLC) carries out the buffer level during horizontal blanking
Control reduces entire so as to effectively avoid the current waist of driving circuit during the horizontal blanking for not showing image
The power consumption of driving circuit, while will not influence the image quality during normal display.
Detailed description of the invention
Fig. 1 is a kind of flow chart for driving method that the embodiment of the present invention one provides；
Fig. 2 is the timing diagram of driving method shown in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of driving circuit provided by Embodiment 2 of the present invention.
Specific embodiment
To make those skilled in the art more fully understand technical solution of the present invention, the present invention is mentioned with reference to the accompanying drawing
Driving method and its driving circuit, the display panel of confession are described in detail.
Embodiment one
Fig. 1 is a kind of flow chart of the driving method for display panel that the embodiment of the present invention one provides.As shown in Figure 1, frame
Picture includes odd field picture and even field picture, and the driving method includes:
Step 1001 is successively scanned the odd-numbered line grid line for being located at odd field picture, adjacent odd-numbered line grid line
There is preset first time interval between scanning.
Step 1002 is successively scanned the even number line grid line for being located at even field picture, adjacent even number line grid line
There is preset second time interval between scanning.
First time interval is arranged between the scanning of adjacent odd-numbered line grid line in driving method provided in this embodiment,
The second time interval is set between the scanning of adjacent even number line grid line, thus sweeping the odd-numbered line grid line among the prior art
The time interval even partition between the scanning of even number line grid line is retouched between multiple first time intervals and multiple first times
Every.Time interval between scan period, which be uniformly distributed, can avoid the occurrence of scintillation, to improve display picture
Display quality.
Fig. 2 is the timing diagram of driving method shown in Fig. 1.As shown in Fig. 2, a frame image time includes odd field image time
ToddWith even field image time Teven.Among odd field picture, the present embodiment is successively scanned odd-numbered line grid line, and
And there is preset first time interval T1 between the scanning of adjacent odd-numbered line grid line.Among even field picture, this implementation
Successively several rows of grid lines of antithesis are scanned example, and between preset second time between the scanning of adjacent even number line grid line
Every T2.In the present embodiment, the first time interval T1 is identical as the second time interval T2.Due to first time interval T1
It is distributed among the scan period with the second time interval T2, so that generally speaking every section of time interval will not be too long, therefore will not
There is scintillation.
In the present embodiment, the first buffer level of the first time interval and second time interval is 0%-
30%.Preferably, first buffer level is 0%.The power consumption that the buffer level of driver is used to be arranged driver is big
Small, the power consumption of the smaller then driver of the value of buffer level is smaller, and the power consumption of the more big then driver of the value of buffer level is bigger.
Certainly, the present embodiment must be configured buffer level under the premise for meeting display picture power demand, otherwise can
Influence display quality.Therefore, technical solution provided in this embodiment is by buffer level control technology to during horizontal blanking
Buffer level controlled, so as to effectively avoid the electric current of driving circuit during the horizontal blanking for not showing image
Waste, reduces the power consumption of entire driving circuit, while will not influence the image quality during normal display.
Referring to fig. 2, among odd field picture, the present embodiment is successively scanned odd-numbered line grid line, to odd-numbered line grid
The pulse width that line is scanned is third time interval T3.Among even field picture, the present embodiment successively several rows of grid of antithesis
Line is scanned, and the pulse width that several rows of grid lines of antithesis are scanned is the 4th time interval T4.In the present embodiment, the third
Time interval T3 is identical as the 4th time interval T4, thus by the scanning of the odd-numbered line grid line among the prior art and even number
Time interval even partition between the scanning of row grid line is multiple first time interval T1 and multiple first time interval T2.It sweeps
Scintillation can be avoided the occurrence of by retouching the time interval between the period and be uniformly distributed, to improve the display product of display picture
Matter.
In the present embodiment, the second buffer level of the third time interval and the 4th time interval is 60%-
100%.Optionally, second buffer level is 90%-100%.Preferably, second buffer level is 90%.
Within one frame picture, in addition to display image it is normal show during other than, during further including the horizontal blanking for not showing image
(horizontal blanking time).Although being the blank time for not showing image during blanking, driving circuit is in this section
Still continue output signal within time, that is to say, that driving circuit still constantly consumes electric current, virtually improves driving
The consumption power of circuit.First buffer level provided in this embodiment is exactly to set to reduce the power consumption during horizontal blanking
It sets.In order to be further reduced power consumption, the second buffer level provided in this embodiment can reduce the normal aobvious of display image
Power consumption during showing reduces the power consumption of entire driving circuit so as to effectively avoid the current waist of driving circuit,
It will not influence the image quality during normal display simultaneously.
In the present embodiment, the second buffer level of the third time interval and the 4th time interval is 60%-
100%.Optionally, second buffer level is 60%-80%.Preferably, second buffer level is 60%.Cause
This, the second buffer level provided in this embodiment can reduce the power consumption during the normal display of display image, so as to
The current waist for effectively avoiding driving circuit, reduces the power consumption of entire driving circuit, while will not influence normal display
The image quality of period.
Among driving method provided in this embodiment, frame picture includes odd field picture and even field picture, the driving
Method includes: successively to be scanned to the odd-numbered line grid line for being located at odd field picture, between the scanning of adjacent odd-numbered line grid line
With preset first time interval；The even number line grid line for being located at even field picture is successively scanned, adjacent even number line
There is preset second time interval between the scanning of grid line.Technical solution provided in this embodiment is in adjacent odd-numbered line grid line
Scanning between first time interval is set, the second time interval is set between the scanning of adjacent even number line grid line, thus
It is more by the time interval even partition between the scanning of the odd-numbered line grid line among the prior art and the scanning of even number line grid line
A first time interval and multiple first time intervals.Time interval between scan period be uniformly distributed can be to avoid going out
Existing scintillation, to improve the display quality of display picture.In addition, technical solution provided in this embodiment passes through buffer water
Flat control technology (buffer level control, referred to as BLC) controls the buffer level during horizontal blanking,
So as to effectively avoid the current waist of driving circuit during the horizontal blanking for not showing image, entire driving electricity is reduced
The power consumption on road, while will not influence the image quality during normal display.
Embodiment two
Fig. 3 is a kind of structural schematic diagram of the driving circuit of display panel provided by Embodiment 2 of the present invention.Such as Fig. 3 institute
Show, frame picture includes odd field picture and even field picture, and the driving circuit includes the first scanning element 101 and the second scanning
Unit 102, first scanning element 101 is used to successively be scanned the odd-numbered line grid line for being located at odd field picture, adjacent
Odd-numbered line grid line scanning between have preset first time interval；Second scanning element 102 is used for even to being located at
The even number line grid line of several pictures is successively scanned, and has preset second time between the scanning of adjacent even number line grid line
Interval.
Referring to fig. 2, a frame image time includes odd field image time ToddWith even field image time Teven.In odd number
Among the picture of field, the present embodiment is successively scanned odd-numbered line grid line, and has between the scanning of adjacent odd-numbered line grid line
There is preset first time interval T1.Among even field picture, successively several rows of grid lines of antithesis are scanned the present embodiment, and
There is preset second time interval T2 between the scanning of adjacent even number line grid line.In the present embodiment, between the first time
It is identical as the second time interval T2 every T1.Since first time interval T1 and the second time interval T2 are distributed in the scan period
Among, it so that generally speaking every section of time interval will not be too long, therefore is not in scintillation.
In the present embodiment, the first buffer level of the first time interval and second time interval is 0%-
30%.Preferably, first buffer level is 0%.Within one frame picture, in addition to display image it is normal show during it
Outside, further include do not show image horizontal blanking during (horizontal blanking time).Although for not during blanking
Show the blank time of image, driving circuit still continues output signal within this period, that is to say, that driving circuit is still
Electric current is constantly so consumed, virtually improves the consumption power of driving circuit.First buffer level provided in this embodiment
Exactly it is arranged to reduce the power consumption during horizontal blanking.Therefore, technical solution provided in this embodiment passes through buffer
Horizontal control technology controls the buffer level during horizontal blanking, so as in the horizontal blanking for not showing image
Period effectively avoids the current waist of driving circuit, reduces the power consumption of entire driving circuit, while will not influence normal
Image quality during display.
Referring to fig. 2, among odd field picture, the present embodiment is successively scanned odd-numbered line grid line, to odd-numbered line grid
The pulse width that line is scanned is third time interval T3.Among even field picture, the present embodiment successively several rows of grid of antithesis
Line is scanned, and the pulse width that several rows of grid lines of antithesis are scanned is the 4th time interval T4.In the present embodiment, the third
Time interval T3 is identical as the 4th time interval T4, thus by the scanning of the odd-numbered line grid line among the prior art and even number
Time interval even partition between the scanning of row grid line is multiple first time interval T1 and multiple first time interval T2.It sweeps
Scintillation can be avoided the occurrence of by retouching the time interval between the period and be uniformly distributed, to improve the display product of display picture
Matter.
Among driving circuit provided in this embodiment, frame picture includes odd field picture and even field picture, the driving
Method includes: successively to be scanned to the odd-numbered line grid line for being located at odd field picture, between the scanning of adjacent odd-numbered line grid line
With preset first time interval；The even number line grid line for being located at even field picture is successively scanned, adjacent even number line
There is preset second time interval between the scanning of grid line.Technical solution provided in this embodiment is in adjacent odd-numbered line grid line
Scanning between first time interval is set, the second time interval is set between the scanning of adjacent even number line grid line, thus
It is more by the time interval even partition between the scanning of the odd-numbered line grid line among the prior art and the scanning of even number line grid line
A first time interval and multiple first time intervals.Time interval between scan period be uniformly distributed can be to avoid going out
Existing scintillation, to improve the display quality of display picture.In addition, technical solution provided in this embodiment passes through buffer water
Flat control technology (buffer level control, referred to as BLC) controls the buffer level during horizontal blanking,
So as to effectively avoid the current waist of driving circuit during the horizontal blanking for not showing image, entire driving electricity is reduced
The power consumption on road, while will not influence the image quality during normal display.
Embodiment three
The present embodiment provides a kind of display panels, and including the driving circuit that embodiment two provides, particular content can refer to reality
The description of example two is applied, details are not described herein again.
Among display panel provided in this embodiment, frame picture includes odd field picture and even field picture, the driving
Method includes: successively to be scanned to the odd-numbered line grid line for being located at odd field picture, between the scanning of adjacent odd-numbered line grid line
With preset first time interval；The even number line grid line for being located at even field picture is successively scanned, adjacent even number line
There is preset second time interval between the scanning of grid line.Technical solution provided in this embodiment is in adjacent odd-numbered line grid line
Scanning between first time interval is set, the second time interval is set between the scanning of adjacent even number line grid line, thus
It is more by the time interval even partition between the scanning of the odd-numbered line grid line among the prior art and the scanning of even number line grid line
A first time interval and multiple first time intervals.Time interval between scan period be uniformly distributed can be to avoid going out
Existing scintillation, to improve the display quality of display picture.In addition, technical solution provided in this embodiment passes through buffer water
Flat control technology (buffer level control, referred to as BLC) controls the buffer level during horizontal blanking,
So as to effectively avoid the current waist of driving circuit during the horizontal blanking for not showing image, entire driving electricity is reduced
The power consumption on road, while will not influence the image quality during normal display.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of driving method of display panel, which is characterized in that frame picture includes odd field picture and even field picture, described
Driving method includes:
The odd-numbered line grid line for being located at odd field picture is successively scanned, is had between the scanning of adjacent odd-numbered line grid line pre-
If first time interval；
The even number line grid line for being located at even field picture is successively scanned, is had between the scanning of adjacent even number line grid line pre-
If the second time interval.
2. driving method according to claim 1, which is characterized in that between the first time interval and second time
Every identical.
3. driving method according to claim 2, which is characterized in that between the first time interval and second time
Every the first buffer level be 0%-30%.
4. driving method according to claim 2, which is characterized in that between the first time interval and second time
Every the first buffer level be 0%.
5. driving method according to claim 1, which is characterized in that the pulse width being scanned to odd-numbered line grid line is
Third time interval, the pulse width that several rows of grid lines of antithesis are scanned be the 4th time interval, the third time interval with
4th time interval is identical, and the second buffer level of the third time interval and the 4th time interval is
60%-100%.
6. driving method according to claim 5, which is characterized in that second buffer level is 90%-100%.
7. driving method according to claim 6, which is characterized in that second buffer level is 90%.
8. driving method according to claim 5, which is characterized in that second buffer level is 60%-80%.
9. driving method according to claim 8, which is characterized in that second buffer level is 60%.
10. a kind of driving circuit of display panel, which is characterized in that frame picture includes odd field picture and even field picture, institute
Stating driving circuit includes:
First scanning element, for being successively scanned to the odd-numbered line grid line for being located at odd field picture, adjacent odd-numbered line grid
There is preset first time interval between the scanning of line；
Second scanning element, for being successively scanned to the even number line grid line for being located at even field picture, adjacent even number line grid
There is preset second time interval between the scanning of line.
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| CN201610982312.6A CN106409257B (en) | 2016-11-08 | 2016-11-08 | A kind of driving method and its driving circuit of display panel |
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| CN201610982312.6A CN106409257B (en) | 2016-11-08 | 2016-11-08 | A kind of driving method and its driving circuit of display panel |
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| CN107180620B (en) * | 2017-07-27 | 2019-10-25 | 京东方科技集团股份有限公司 | Display panel control circuit, the driving method of display panel and display device |
| CN110310608B (en) * | 2018-03-27 | 2021-01-05 | 京东方科技集团股份有限公司 | Control circuit, test equipment and test method of liquid crystal display panel |
| CN111179792B (en) * | 2018-11-12 | 2021-05-07 | 重庆先进光电显示技术研究院 | Display panel, detection method and display device |
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| US6124840A (en) * | 1997-04-07 | 2000-09-26 | Hyundai Electronics Industries Co., Ltd. | Low power gate driver circuit for thin film transistor-liquid crystal display (TFT-LCD) using electric charge recycling technique |
| KR20040013962A (en) * | 2002-08-09 | 2004-02-14 | 엘지.필립스 엘시디 주식회사 | Data driving circuit of liquid crystal displays |
| CN100360994C (en) * | 2004-06-03 | 2008-01-09 | 微驱科技股份有限公司 | Deinterlaced display device |
| CN101853640B (en) * | 2010-03-09 | 2012-10-17 | 华映视讯（吴江）有限公司 | Display device and refresh rate modulation method thereof |
| CN106023949A (en) * | 2016-08-12 | 2016-10-12 | 京东方科技集团股份有限公司 | Shifting register, grid integrated driving circuit and display device |
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