CN105825830B - The driving method of liquid crystal display panel - Google Patents
The driving method of liquid crystal display panel Download PDFInfo
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- CN105825830B CN105825830B CN201610367187.8A CN201610367187A CN105825830B CN 105825830 B CN105825830 B CN 105825830B CN 201610367187 A CN201610367187 A CN 201610367187A CN 105825830 B CN105825830 B CN 105825830B
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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
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of driving method of liquid crystal display panel, this method is by the arrangement of subpixels order of same row in Tri gate framework liquid crystal display panels by red sub-pixel, green sub-pixels, and blue subpixels are changed to blue subpixels, green sub-pixels, and red sub-pixel, arrange in pairs or groups specific scanning sequency, during so that liquid crystal display panel driving, brightness is switched from often scanning a line sub-pixel of script and is changed into every scanning three row sub-pixels brightness of switching, so as to which the discharge and recharge frequency of sub-pixel to be reduced to the 1/3 of former discharge and recharge frequency, the switching of brightness each time is all disposed within to the position of blue subpixels at the same time, low sensitivity using human eye to blueness, lift the color homogeneity of liquid crystal display panel.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of driving method of liquid crystal display panel.
Background technology
Liquid crystal display device (Liquid Crystal Display, LCD) has that fuselage is thin, power saving, radiationless etc. numerous
Advantage, is widely used.Such as：LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer
Screen or laptop screen etc., occupy an leading position in flat display field.
It is backlight liquid crystal display that liquid crystal display device on existing market is most of, it include liquid crystal display panel and
Backlight module (backlight module).The operation principle of liquid crystal display panel is put among the parallel glass substrate of two panels
Liquid crystal molecule is put, there are many tiny electric wires vertically and horizontally among two panels glass substrate, by controlling liquid crystal whether energization
Molecular changes direction, generation picture is reflected by the light of backlight module.
Existing liquid crystal display panel usually uses three grids (Tri-gate) framework to reduce cost, referring to Fig. 1,
It is the schematic diagram of the liquid crystal display panel of existing Tri-gate frameworks, which includes the multiple of array arrangement
Sub-pixel, the sub-pixel includes red sub-pixel R, green sub-pixels G and blue subpixels B, red in each row sub-pixel
Sub-pixels R, green sub-pixels G and blue subpixels B are alternately repeated arrangement successively., can be with by using Tri-gate frameworks
Number of scanning lines increase is allowed to be three times, data cable number is reduced to the 1/3 of script, reduces the data cable of source electrode driver whereby
Number, declines the cost of source electrode driver.
Serious color offset phenomenon can occur under big visual angle for existing liquid crystal display panel, referring to Fig. 2, and combine Fig. 1,
In order to eliminate big visual angle colour cast, data-signal Data can be processed into bright dark alternate pattern, i.e., it is adjacent in same row sub-pixel
Two sub-pixels brightness it is different, one is in illuminated state, and one is in dark-state, so as to eliminate big visual angle colour cast.Further, it is existing
In technology, during the driving of above-mentioned Tri-gate frameworks, generally use the first row sub-pixel Line1, the second row sub-pixel Line2, the
Three row sub-pixel Line3, fourth line sub-pixel Line4, progressive scan are until the progress of the order of last column sub-pixel LineN
Turntable driving, and since the brightness of two sub-pixels adjacent in each row sub-pixel is different, data-signal Data is with each row
The scanning of pixel constantly switches between brightness data and dark-state data, and switching frequency is higher, so that liquid crystal display panel
Be constantly in high frequency heavy condition, during bright dark switching sub-pixel can not discharge and recharge to optimal level, while source electrode driver power consumption
And temperature is excessive, has and burn risk.
The content of the invention
It is an object of the invention to provide a kind of driving method of liquid crystal display panel, the discharge and recharge of sub-pixel can be reduced
Frequency, reduces the power consumption of source electrode driver, lifts the color homogeneity of liquid crystal display panel.
To achieve the above object, the present invention provides a kind of driving method of liquid crystal display panel, include the following steps：
Step 1, provide a liquid crystal display panel, includes multiple sub-pixels of array arrangement, and each row sub-pixel includes
It is alternately repeated blue subpixels, green sub-pixels and the red sub-pixel of arrangement successively from the first row toward last column；
Step 2, set that M, K are positive integer and K is less than or equal to M, by the multiple sub- picture in addition to the second row sub-pixel
Element is divided into the first to M common M scanning group, wherein, k-th scanning group includes：N, N+2, N+4, N+3, N+5,
And N+7 row sub-pixels, N are equal to 6K-5；
Step 3, scan the second row sub-pixel first, and then scanning first is to m-th scanning group successively, in each scanning
Scanned successively according to the order of N, N+2, N+4, N+3, N+5 and N+7 row sub-pixels in group；
Data-signal writes each sub-pixel according to scanning sequency makes it shine, two adjacent sub- pictures in same row sub-pixel
The brightness of element is different.
The brightness of two sub-pixels adjacent in same row sub-pixel is respectively that the first brightness and second are bright in the step 3
Degree, wherein the first brightness is more than the second brightness.
The brightness of second row sub-pixel is the second brightness in the step 3, N, N+2 in each scanning group and
The brightness of N+4 row sub-pixels is the first brightness, and the brightness of N+3, N+5 and N+7 row sub-pixels are second bright
Degree.
The brightness of second row sub-pixel is the first brightness in the step 3, N, N+2 in each scanning group and
The brightness of N+4 row sub-pixels is the second brightness, and the brightness of N+3, N+5 and N+7 row sub-pixels are first bright
Degree.
The brightness of second row odd column sub-pixel is the second brightness in the step 3, the second row even column sub-pixel it is bright
Spend for the first brightness, Nth row odd column, N+2 rows odd column and N+4 row odd column sub-pixels in each scanning group
Brightness be the first brightness, the brightness of Nth row even column, N+2 rows even column and N+4 row even column sub-pixels is
Second brightness, the brightness of N+3 rows odd column, N+5 rows odd column and N+7 row odd column sub-pixels is the second brightness,
The brightness of N+3 rows even column, N+5 rows even column and N+7 row even column sub-pixels is the first brightness.
The brightness of second row odd column sub-pixel is the first brightness in the step 3, the second row even column sub-pixel it is bright
Spend for the second brightness, Nth row odd column, N+2 rows odd column and N+4 row odd column sub-pixels in each scanning group
Brightness be the second brightness, the brightness of Nth row even column, N+2 rows even column and N+4 row even column sub-pixels is
First brightness, the brightness of N+3 rows odd column, N+5 rows odd column and N+7 row odd column sub-pixels is the first brightness,
The brightness of N+3 rows even column, N+5 rows even column and N+7 row even column sub-pixels is the second brightness.
Change the brightness of each sub-pixel by varying the voltage swing of the data-signal for writing each sub-pixel.
A continuously arranged blue subpixels, a green sub-pixels and a red sub-pixel successively in same row sub-pixel
Collectively form a display pixel.
The liquid crystal display panel corresponds to and a scan line is equipped with per a line sub-pixel, and corresponding each row sub-pixel is equipped with one
Data line.
Beneficial effects of the present invention：The present invention provides a kind of driving method of liquid crystal display panel, this method is by Tri-
The arrangement of subpixels order of same row is by red sub-pixel, green sub-pixels and blueness in gate framework liquid crystal display panels
Pixel is changed to blue subpixels, green sub-pixels and red sub-pixel, specific scanning sequency of arranging in pairs or groups so that LCD display
When plate drives, it is once bright that every scanning three row sub-pixels switching is changed into from often scanning a line sub-pixel brightness of switching of script
Degree, so that the discharge and recharge frequency of sub-pixel is reduced to the 1/3 of former discharge and recharge frequency, while the switching of brightness each time is all disposed within
The position of blue subpixels, the low sensitivity using human eye to blueness, lifts the color homogeneity of liquid crystal display panel.
Brief description of the drawings
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and attached drawing, however attached drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
In attached drawing,
Fig. 1 is the schematic diagram of the liquid crystal display panel of existing Tri-gate frameworks；
Fig. 2 is the driver' s timing figure of liquid crystal display panel shown in Fig. 1；
Fig. 3 is the schematic diagram of the step 1 in the driving method of the liquid crystal display panel of the present invention；
Fig. 4 is the driver' s timing figure of the driving method of the liquid crystal display panel of the present invention；
Fig. 5 is the flow chart of the driving method of the liquid crystal display panel of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its attached drawing are described in detail.
Referring to Fig. 5, the present invention provides a kind of driving method of liquid crystal display panel, include the following steps：
Step 1, referring to Fig. 3, providing a liquid crystal display panel, include multiple sub-pixels of array arrangement, each row
Pixel includes the blue subpixels B, green sub-pixels G and red for being alternately repeated arrangement successively from the first row toward last column
Sub-pixel R.
Specifically, which uses Tri-gate frameworks, i.e., by each sub-pixel in each display pixel
Vertically arrange, it is corresponding per a line sub- picture by the arrangement of subpixels of color identical in each display pixel in same a line
Element is equipped with a scan line, and corresponding each row sub-pixel is equipped with a data line.It is continuously arranged successively in same row sub-pixel
One blue subpixels B, a green sub-pixels G and a red sub-pixel R collectively form a display pixel, that is to say, that one aobvious
Show that pixel connects three scan lines and a data line, contrast traditional arrangement mode, data cable is reduced to 1/3, and scan line increases
3 times are added as, so as to reduce the number of the data cable of source electrode driver, declines the cost of source electrode driver.
It is understood that although the present invention is by red sub-pixel R of the pixel arrangement of the same row order by script, green
Sub-pixel G and blue subpixels B has been changed to blue subpixels B, green sub-pixels G and red sub-pixel R, but because colour mixture is shown
Show principle, this does not interfere with the overall display of panel.
Step 2, set that M, K are positive integer and K is less than or equal to M, by the multiple sub- picture in addition to the second row sub-pixel
Element is divided into the first to M common M scanning group, wherein, k-th scanning group includes：N, N+2, N+4, N+3, N+5,
And N+7 row sub-pixels, N are equal to 6K-5.
Specifically, as shown in figure 3, first scanning group includes：The first row sub-pixel Line1, the third line sub-pixel
Line3, fifth line sub-pixel Line5, fourth line sub-pixel Line4, the 6th row sub-pixel Line6 and the 8th row sub-pixel
Lin8, second scanning group include：7th row sub-pixel, the 9th row sub-pixel, the tenth a line sub-pixel, the tenth row sub-pixel,
12nd row sub-pixel and Ariadne sub-pixel, and so on until last scanning group.In each scanning group
N rows and N+3 row sub-pixels are blue subpixels B.
Step 3, referring to Fig. 4, scan the second row sub-pixel first, then successively scanning first to m-th scanning group,
Scanned successively according to the order of N, N+2, N+4, N+3, N+5 and N+7 row sub-pixels in each scanning group；
Data-signal Data writes each sub-pixel according to scanning sequency makes it shine, adjacent two in same row sub-pixel
The brightness of sub-pixel is different.
Specifically, the scan line provides scanning pulse signal and each row sub-pixel is scanned, and the data cable provides
Data-signal Data causes each sub-pixel for emitting light.
Specifically, the second row sub-pixel is first scanned in the step 3 then be followed successively by the first row, the third line, fifth line,
Fourth line, the 6th row, the 8th row, the 7th row, the 9th row, the tenth a line, the tenth row, the 12nd row, Ariadne and so on
To last column sub-pixel.
Specifically, the brightness of two sub-pixels adjacent in same row sub-pixel in the step 3 be respectively the first brightness and
Second brightness, wherein the first brightness is more than the second brightness, first brightness and the illuminated state of the second brightness difference corresponding sub-pixel
With dark-state, the luminance difference of specific brightness number and the first brightness and the second brightness can be determined according to display needs.Pass through
Sub-pixel is arranged to the bright big visual angle colour cast for being secretly alternately arranged display, can reducing liquid crystal display panel, lifts display quality.
It should be noted that referring to Fig. 3 and combining Fig. 2 and Fig. 4, the liquid crystal display panel using above-mentioned scanning sequency exists
During scanning, brightness each time switching all in blue subpixels B position, it is this since human eye is to the low sensitivity of blueness
The color homogeneity of liquid crystal display panel can be lifted by setting.The brightness of switching of a line sub-pixel will be often scanned originally at the same time to become
Switch a brightness for three row sub-pixels of every scanning, so that the discharge and recharge frequency of sub-pixel is reduced to the 1/3 of former discharge and recharge frequency,
Greatly reduce the power consumption of source electrode driver.
Alternatively, the brightness of second row sub-pixel is the second brightness in the step 3, N in each scanning group,
The brightness of N+2 and N+4 row sub-pixels is the first brightness, and the brightness of N+3, N+5 and N+7 row sub-pixels is
The sub-pixel of odd-numbered line is in illuminated state in two brightness, namely the liquid crystal display panel, and the sub-pixel of even number line is in dark-state.
Alternatively, the brightness of second row sub-pixel is the first brightness in the step 3, N in each scanning group,
The brightness of N+2 and N+4 row sub-pixels is the second brightness, and the brightness of N+3, N+5 and N+7 row sub-pixels is
The sub-pixel of odd-numbered line is in dark-state in one brightness, namely the liquid crystal display panel, and the sub-pixel of even number line is in illuminated state.
Alternatively, the brightness of second row odd column sub-pixel is the second brightness in the step 3, the second row even column picture
The brightness of element is the first brightness, Nth row odd column, N+2 rows odd column and N+4 row odd columns in each scanning group
The brightness of sub-pixel is the first brightness, Nth row even column, N+2 rows even column and N+4 row even column sub-pixels it is bright
Degree is the second brightness, and the brightness of N+3 rows odd column, N+5 rows odd column and N+7 row odd column sub-pixels is
Two brightness, the brightness of N+3 rows even column, N+5 rows even column and N+7 row even column sub-pixels is the first brightness,
The sub-pixel of even number line odd column and odd-numbered line even column is in dark-state in i.e. described liquid crystal display panel, even number line even column,
And the sub-pixel of odd-numbered line odd column is in illuminated state.
Alternatively, the brightness of second row odd column sub-pixel is the first brightness in the step 3, the second row even column picture
The brightness of element is the second brightness, Nth row odd column, N+2 rows odd column and N+4 row odd columns in each scanning group
The brightness of sub-pixel is the second brightness, Nth row even column, N+2 rows even column and N+4 row even column sub-pixels it is bright
Degree is the first brightness, and the brightness of N+3 rows odd column, N+5 rows odd column and N+7 row odd column sub-pixels is
One brightness, the brightness of N+3 rows even column, N+5 rows even column and N+7 row even column sub-pixels is the second brightness,
The sub-pixel of even number line odd column and odd-numbered line even column is in illuminated state in i.e. described liquid crystal display panel, even number line even column,
And the sub-pixel of odd-numbered line odd column is in dark-state.
In conclusion the present invention provides a kind of driving method of liquid crystal display panel, this method is by Tri-gate frameworks
The arrangement of subpixels order of same row is changed to by red sub-pixel, green sub-pixels and blue subpixels in liquid crystal display panel
Blue subpixels, green sub-pixels and red sub-pixel, specific scanning sequency of arranging in pairs or groups so that when liquid crystal display panel drives,
Brightness is switched from often scanning a line sub-pixel of script it is changed into three row sub-pixels of every scanning and switch a brightness, so that by son
The discharge and recharge frequency of pixel is reduced to the 1/3 of former discharge and recharge frequency, while the switching of brightness each time is all disposed within blue subpixels
Position, the low sensitivity using human eye to blueness, lifts the color homogeneity of liquid crystal display panel.
The above, for those of ordinary skill in the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (9)
1. a kind of driving method of liquid crystal display panel, it is characterised in that include the following steps：
Step 1, provide a liquid crystal display panel, includes multiple sub-pixels of array arrangement, and each row sub-pixel is included from the
A line is alternately repeated blue subpixels (B), green sub-pixels (G) and the red sub-pixel (R) of arrangement toward last column successively；
Step 2, set that M, K are positive integer and K is less than or equal to M, by the multiple sub-pixel in addition to the second row sub-pixel point
For the first to M common M scanning group, wherein, k-th scanning group includes：N, N+2, N+4, N+3, N+5 and N
+ 7 row sub-pixels, N are equal to 6K-5；
Step 3, scan the second row sub-pixel first, and then scanning first is to m-th scanning group successively, in each scanning group
Scanned successively according to the order of N, N+2, N+4, N+3, N+5 and N+7 row sub-pixels；
Data-signal (Data) writes each sub-pixel according to scanning sequency makes it shine, two adjacent sons in same row sub-pixel
The brightness of pixel is different.
2. the driving method of liquid crystal display panel as claimed in claim 1, it is characterised in that same row in the step 3
The brightness of two adjacent sub-pixels is respectively the first brightness and the second brightness in pixel, wherein the first brightness is more than the second brightness.
3. the driving method of liquid crystal display panel as claimed in claim 2, it is characterised in that the second row in the step 3
The brightness of pixel is the second brightness, and the brightness of N, N+2 and N+4 row sub-pixels in each scanning group are first
Brightness, the brightness of N+3, N+5 and N+7 row sub-pixels are the second brightness.
4. the driving method of liquid crystal display panel as claimed in claim 2, it is characterised in that the second row in the step 3
The brightness of pixel is the first brightness, and the brightness of N, N+2 and N+4 row sub-pixels in each scanning group are second
Brightness, the brightness of N+3, N+5 and N+7 row sub-pixels are the first brightness.
5. the driving method of liquid crystal display panel as claimed in claim 2, it is characterised in that second row is strange in the step 3
The brightness of ordered series of numbers sub-pixel is the second brightness, and the brightness of the second row even column sub-pixel is the first brightness, in each scanning group
The brightness of Nth row odd column, N+2 rows odd column and N+4 row odd column sub-pixels be the first brightness, Nth row even number
The brightness of row, N+2 rows even column and N+4 row even column sub-pixels is the second brightness, N+3 rows odd column, N+5
The brightness of row odd column and N+7 row odd column sub-pixels is the second brightness, N+3 rows even column, N+5 rows even column,
And the brightness of N+7 row even column sub-pixels is the first brightness.
6. the driving method of liquid crystal display panel as claimed in claim 2, it is characterised in that second row is strange in the step 3
The brightness of ordered series of numbers sub-pixel is the first brightness, and the brightness of the second row even column sub-pixel is the second brightness, in each scanning group
The brightness of Nth row odd column, N+2 rows odd column and N+4 row odd column sub-pixels be the second brightness, Nth row even number
The brightness of row, N+2 rows even column and N+4 row even column sub-pixels is the first brightness, N+3 rows odd column, N+5
The brightness of row odd column and N+7 row odd column sub-pixels is the first brightness, N+3 rows even column, N+5 rows even column,
And the brightness of N+7 row even column sub-pixels is the second brightness.
7. the driving method of liquid crystal display panel as claimed in claim 1, it is characterised in that by varying each height picture is write
The voltage swing of the data-signal (Data) of element changes the brightness of each sub-pixel.
8. the driving method of liquid crystal display panel as claimed in claim 1, it is characterised in that connect successively in same row sub-pixel
A blue subpixels (B), a green sub-pixels (G) and a red sub-pixel (R) for continuous arrangement collectively forms a display pixel.
9. the driving method of liquid crystal display panel as claimed in claim 1, it is characterised in that the liquid crystal display panel corresponds to
A scan line is equipped with per a line sub-pixel, corresponding each row sub-pixel is equipped with a data line.
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| CN106935218B (en) * | 2017-03-23 | 2019-02-12 | 深圳市华星光电技术有限公司 | A kind of driving method and liquid crystal display panel of liquid crystal display panel |
| CN106991951A (en) * | 2017-03-23 | 2017-07-28 | 深圳市华星光电技术有限公司 | Display and its driving method |
| CN107610660B (en) * | 2017-09-18 | 2019-08-09 | 惠科股份有限公司 | Display device and driving method thereof |
| CN108831399B (en) * | 2018-07-25 | 2020-11-24 | 深圳市华星光电技术有限公司 | Display driving method and liquid crystal display device |
| CN109559676A (en) * | 2018-12-18 | 2019-04-02 | 深圳市奥拓电子股份有限公司 | LED display driver circuit and LED display |
| CN109599072B (en) * | 2018-12-18 | 2021-04-02 | 惠科股份有限公司 | Display device, driving method and display |
| CN109584840B (en) * | 2019-01-30 | 2020-12-29 | 惠科股份有限公司 | Driving method and device of display panel |
| CN109872684B (en) * | 2019-03-29 | 2020-10-27 | 上海天马有机发光显示技术有限公司 | Display panel, display device and driving method of display panel |
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