CN105825830A - Driving method for liquid crystal display panel - Google Patents
Driving method for liquid crystal display panel Download PDFInfo
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- CN105825830A CN105825830A CN201610367187.8A CN201610367187A CN105825830A CN 105825830 A CN105825830 A CN 105825830A CN 201610367187 A CN201610367187 A CN 201610367187A CN 105825830 A CN105825830 A CN 105825830A
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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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- 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 (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a driving method for a liquid crystal display panel. The method comprises steps that the ordering sequence of sub pixels in one column of a Tri-gate configuration liquid crystal display panel is changed into blue sub pixels, green sub pixels and red sub pixels from red sub pixels, green sub pixels and blue sub pixels, a specific scanning sequence is utilized for matching, so an original mode of one-time brightness switching for scanning one row of sub pixels is changed into a mode of one-time brightness switching for scanning three rows of sub pixels when the liquid crystal display panel is driven, the charging and discharging frequency of the sub pixels is reduced to be one third of the original charging and discharging frequency, moreover, each time of brightness switching is arranged at the position of the blue sub pixels, and thereby color uniformity of the liquid crystal display panel is improved by utilizing the characteristic of low sensitivity of eyes for the blue.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to the driving method of a kind of display panels.
Background technology
Liquid crystal indicator (Liquid Crystal Display, LCD) has that fuselage is thin, power saving, without spoke
The many merits such as penetrate, be widely used.As: LCD TV, mobile phone, individual digital
Assistant (PDA), digital camera, computer screen or notebook computer screen etc., lead in flat pannel display
Occupy an leading position in territory.
Liquid crystal indicator major part on existing market is backlight liquid crystal display, and it includes liquid crystal
Show panel and backlight module (backlight module).The operation principle of display panels is to put down in two panels
Place liquid crystal molecule in the middle of the glass substrate of row, in the middle of two panels glass substrate, have many vertically and horizontally thin
Little electric wire, controls liquid crystal molecule and changes direction, reflected by the light of backlight module by whether being energized
Produce picture.
Existing display panels usually uses three grids (Tri-gate) framework to reduce cost, please
Refering to Fig. 1, it is the schematic diagram of display panels of existing Tri-gate framework, this display panels
Including multiple sub-pixels of array arrangement, described sub-pixel include red sub-pixel R, green sub-pixels G,
And blue subpixels B, red sub-pixel R, green sub-pixels G and blue son in every string sub-pixel
Pixel B is alternately repeated arrangement successively.By using Tri-gate framework, number of scanning lines can be allowed to increase to
Three times, data wire number is reduced to 1/3 originally, reduces the number of the data wire of source electrode driver whereby,
The cost making source electrode driver declines.
Existing display panels can occur serious color offset phenomenon under big visual angle, refers to Fig. 2, and
In conjunction with Fig. 1, in order to eliminate big visual angle colour cast, data signal Data can be processed into bright dark pattern alternately,
The i.e. brightness with two sub-pixels adjacent in string sub-pixel is different, one on state of, one in dark-state,
Thus eliminate big visual angle colour cast.Further, in prior art, when above-mentioned Tri-gate framework drives, logical
Frequently with the first row sub-pixel Line1, the second row sub-pixel Line2, the third line sub-pixel Line3, the 4th
Row sub-pixel Line4, progressive scan until last column sub-pixel LineN order be scanned drive,
And owing to the brightness of two sub-pixels adjacent in each row sub-pixel is different, data signal Data is along with each row
The scanning of sub-pixel constantly switches between brightness data and dark-state data, and switching frequency is higher, and then makes
Display panels is constantly in high frequency heavy condition, during bright dark switching sub-pixel cannot discharge and recharge to
Good level, source electrode driver power consumption and temperature are too high simultaneously, have and burn risk.
Summary of the invention
It is an object of the invention to provide the driving method of a kind of display panels, it is possible to reduce sub-pixel
Discharge and recharge frequency, reduces the power consumption of source electrode driver, promotes the color homogeneity of display panels.
For achieving the above object, the invention provides the driving method of a kind of display panels, including as follows
Step:
Step 1, provide a display panels, including multiple sub-pixels of array arrangement, every string picture
Element all include from the first row be alternately repeated successively toward last column the blue subpixels of arrangement, green sub-pixels,
And red sub-pixel；
Step 2, set M, K and be positive integer and K less than or equal to M, by the institute in addition to the second row sub-pixel
Stating multiple sub-pixel is divided into first to M to be total to M scanning group, and wherein, k-th scanning group includes: N,
N+2, N+4, N+3, N+5 and N+7 row sub-pixel, N is equal to 6K-5；
Step 3, first scan the second row sub-pixel, scanning the first to m-th scanning group the most successively,
According to N, N+2, N+4, N+3, N+5 and N+7 row picture in each scanning group
The order of element scans successively；
Data signal writes each sub-pixel according to scanning sequency makes it luminous, with adjacent in string sub-pixel
The brightness of two sub-pixels is different.
Described step 3 is respectively the first brightness and with the brightness of two sub-pixels adjacent in string sub-pixel
Two brightness, wherein the first brightness is more than the second brightness.
In described step 3, the brightness of the second row sub-pixel is the second brightness, N in each scanning group,
The brightness of N+2 and N+4 row sub-pixel is the first brightness, N+3, N+5 and N+7
The brightness of row sub-pixel is the second brightness.
In described step 3, the brightness of the second row sub-pixel is the first brightness, N in each scanning group,
The brightness of N+2 and N+4 row sub-pixel is the second brightness, N+3, N+5 and N+7
The brightness of row sub-pixel is the first brightness.
In described step 3, the brightness of the second row odd column sub-pixel is the second brightness, the second row even column picture
The brightness of element is the first brightness, Nth row odd column in each scanning group, N+2 row odd column and
The brightness of N+4 row odd column sub-pixel is the first brightness, Nth row even column, N+2 row even column,
And the brightness of N+4 row even column sub-pixel is the second brightness, N+3 row odd column, N+5 row are strange
The brightness of ordered series of numbers and N+7 row odd column sub-pixel is the second brightness, N+3 row even column, N+5
The brightness of row even column and N+7 row even column sub-pixel is the first brightness.
In described step 3, the brightness of the second row odd column sub-pixel is the first brightness, the second row even column picture
The brightness of element is the second brightness, Nth row odd column in each scanning group, N+2 row odd column and
The brightness of N+4 row odd column sub-pixel is the second brightness, Nth row even column, N+2 row even column,
And the brightness of N+4 row even column sub-pixel is the first brightness, N+3 row odd column, N+5 row are strange
The brightness of ordered series of numbers and N+7 row odd column sub-pixel is the first brightness, N+3 row even column, N+5
The brightness of row even column and N+7 row even column sub-pixel is the second brightness.
The bright of each sub-pixel is changed by changing the voltage swing of the data signal writing each sub-pixel
Degree.
Red with the blue subpixels the most continuously arranged in string sub-pixel, a green sub-pixels and one
Sub-pixel collectively forms a display pixel.
The corresponding every a line sub-pixel of described display panels is provided with a scan line, corresponding every string sub-pixel
It is provided with a data line.
Beneficial effects of the present invention: the invention provides the driving method of a kind of display panels, the method
By in Tri-gate framework display panels with string arrangement of subpixels order by red sub-pixel, green
Sub-pixel and blue subpixels change blue subpixels, green sub-pixels and red sub-pixel, collocation spy into
Fixed scanning sequency so that when display panels drives, by often scanning a line sub-pixel switching one originally
Secondary brightness becomes often scanning three row sub-pixel brightness of switching, thus the discharge and recharge frequency of sub-pixel is reduced to
The 1/3 of former discharge and recharge frequency, is all disposed within the position of blue subpixels, profit simultaneously by the switching of brightness each time
With human eye to blue low sensitivity, promote the color homogeneity of display panels.
Accompanying drawing explanation
In order to be able to be further understood that inventive feature and technology contents, refer to below in connection with the present invention
Detailed description and accompanying drawing, but accompanying drawing only provide with reference to and explanation use, not be used for the present invention is limited
System.
In accompanying drawing,
Fig. 1 is the schematic diagram of the display panels of existing Tri-gate framework；
Fig. 2 is the driver' s timing figure of display panels shown in Fig. 1；
Fig. 3 is the schematic diagram of the step 1 in the driving method of the display panels of the present invention；
Fig. 4 is the driver' s timing figure of the driving method of the display panels of the present invention；
Fig. 5 is the flow chart of the driving method of the display panels of the present invention.
Detailed description of the invention
By further illustrating the technological means and effect thereof that the present invention taked, below in conjunction with the present invention's
Preferred embodiment and accompanying drawing thereof are described in detail.
Referring to Fig. 5, the present invention provides the driving method of a kind of display panels, comprises the steps:
Step 1, refer to Fig. 3, it is provided that a display panels, including multiple sub-pixels of array arrangement,
Every string sub-pixel all include from the first row be alternately repeated successively toward last column arrangement blue subpixels B,
Green sub-pixels G and red sub-pixel R.
Specifically, this display panels use Tri-gate framework, will each display pixel in each
Sub-pixel vertically arranges, by the arrangement of subpixels of color identical in each display pixel in same
OK, corresponding every a line sub-pixel is provided with a scan line, and corresponding every string sub-pixel is provided with a data line.
Red with the blue subpixels B the most continuously arranged in string sub-pixel, green sub-pixels G and one
Sub-pixel R collectively forms a display pixel, say, that a display pixel connects three scan lines and
Data line, contrasts traditional arrangement mode, and data wire is reduced to 1/3, and scan line increases to 3 times, thus
Reduce the number of the data wire of source electrode driver, make the cost of source electrode driver decline.
Although it is understood that the pixel of same string is put in order by red sub-pixel originally by the present invention
R, green sub-pixels G and blue subpixels B have changed blue subpixels B, green sub-pixels G and red into
Sub-pixels R, but because colour mixture displaying principle, this does not interferes with the overall display of panel.
Step 2, set M, K and be positive integer and K less than or equal to M, by the institute in addition to the second row sub-pixel
Stating multiple sub-pixel is divided into first to M to be total to M scanning group, and wherein, k-th scanning group includes: N,
N+2, N+4, N+3, N+5 and N+7 row sub-pixel, N is equal to 6K-5.
Specifically, as it is shown on figure 3, described first scanning group includes: the first row sub-pixel Line1, the 3rd
Row 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 includes: the 7th row sub-pixel, the 9th row sub-pixel,
Ten a line sub-pixels, the tenth row sub-pixel, the 12nd row sub-pixel and Ariadne sub-pixel, successively class
Push away until last scanning group.In each scanning group, Nth row and N+3 row sub-pixel are blueness
Sub-pixel B.
Step 3, refer to Fig. 4, first scan the second row sub-pixel, the most successively scanning the first to m-th
Scanning group, according to N, N+2, N+4, N+3, N+5 and in each scanning group
The order of N+7 row sub-pixel scans successively；
Data signal Data writes each sub-pixel according to scanning sequency makes it luminous, with phase in string sub-pixel
The brightness of two adjacent sub-pixels is different.
Specifically, described scan line provides scanning pulse signal to be scanned each row sub-pixel, described data
Line provides data signal Data to make each sub-pixel for emitting light.
Specifically, described step 3 first scans the second row sub-pixel, 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,
12 row, Ariadne the like to last column sub-pixel.
Specifically, described step 3 is respectively first with the brightness of two sub-pixels adjacent in string sub-pixel
Brightness and the second brightness, wherein the first brightness is more than the second brightness, and described first brightness is with the second brightness respectively
The luminance difference of the on state of of corresponding sub-pixel and dark-state, concrete brightness number and the first brightness and the second brightness can
It is determined according to display needs.By sub-pixel being arranged to bright dark alternately arranged display, liquid can be reduced
The big visual angle colour cast of LCD panel, promotes display quality.
It should be noted that refer to Fig. 3 and combine Fig. 2 and Fig. 4, use the liquid crystal of above-mentioned scanning sequency
Show panel when scanning, brightness switching each time is all in the position of blue subpixels B, due to human eye pair
Blue low sensitivity, this set can promote the color homogeneity of display panels.Simultaneously will be originally
Often brightness of scanning a line sub-pixel switching becomes often scanning three row sub-pixel brightness of switching, thus will
The discharge and recharge frequency of sub-pixel reduces to the 1/3 of former discharge and recharge frequency, greatly reduces the power consumption of source electrode driver.
Alternatively, in described step 3, the brightness of the second row sub-pixel is the second brightness, in each scanning group
The brightness of N, N+2 and N+4 row sub-pixel be the first brightness, N+3, N+5 and
The brightness of N+7 row sub-pixel is the sub-picture of odd-numbered line in the second brightness, namely described display panels
Element is all on state of, and the sub-pixel of even number line is all in dark-state.
Alternatively, in described step 3, the brightness of the second row sub-pixel is the first brightness, in each scanning group
The brightness of N, N+2 and N+4 row sub-pixel be the second brightness, N+3, N+5 and
The brightness of N+7 row sub-pixel is the sub-picture of odd-numbered line in the first brightness, namely described display panels
Element is all in dark-state, and the sub-pixel of even number line is all on state of.
Alternatively, in described step 3, the brightness of the second row odd column sub-pixel is the second brightness, and the second row is even
The brightness of ordered series of numbers sub-pixel is the first brightness, and the Nth row odd column in each scanning group, N+2 row are strange
The brightness of ordered series of numbers and N+4 row odd column sub-pixel is the first brightness, Nth row even column, N+2
The brightness of row even column and N+4 row even column sub-pixel is the second brightness, N+3 row odd column,
The brightness of N+5 row odd column and N+7 row odd column sub-pixel is the second brightness, and N+3 row is even
The brightness of ordered series of numbers, N+5 row even column and N+7 row even column sub-pixel is the first brightness, namely
In described display panels, the sub-pixel of even number line odd column and odd-numbered line even column is all in dark-state, even number
The sub-pixel of row even column and odd-numbered line odd column is all on state of.
Alternatively, in described step 3, the brightness of the second row odd column sub-pixel is the first brightness, and the second row is even
The brightness of ordered series of numbers sub-pixel is the second brightness, and the Nth row odd column in each scanning group, N+2 row are strange
The brightness of ordered series of numbers and N+4 row odd column sub-pixel is the second brightness, Nth row even column, N+2
The brightness of row even column and N+4 row even column sub-pixel is the first brightness, N+3 row odd column,
The brightness of N+5 row odd column and N+7 row odd column sub-pixel is the first brightness, and N+3 row is even
The brightness of ordered series of numbers, N+5 row even column and N+7 row even column sub-pixel is the second brightness, namely
In described display panels, the sub-pixel of even number line odd column and odd-numbered line even column is all on state of, even number
The sub-pixel of row even column and odd-numbered line odd column is all in dark-state.
In sum, the invention provides the driving method of a kind of display panels, the method is by Tri-gate
In framework display panels with the arrangement of subpixels order of string by red sub-pixel, green sub-pixels and
Blue subpixels changes blue subpixels, green sub-pixels and red sub-pixel into, and the specific scanning of collocation is suitable
Sequence so that when display panels drives, is become from often scanning a line sub-pixel brightness of switching originally
Often scan three row sub-pixel brightness of switching, thus the discharge and recharge frequency of sub-pixel is reduced to former discharge and recharge frequency
The 1/3 of rate, is all disposed within the switching of brightness each time the position of blue subpixels simultaneously, utilizes human eye to indigo plant
The low sensitivity of color, promotes the color homogeneity of display panels.
The above, for the person of ordinary skill of the art, can be according to the technical side of the present invention
Other various corresponding changes and deformation are made in case and technology design, and all these change and deformation are all answered
Belong to the protection domain of the claims in the present invention.
Claims (9)
1. the driving method of a display panels, it is characterised in that comprise the steps:
Step 1, provide a display panels, including multiple sub-pixels of array arrangement, every string picture
Element all includes being alternately repeated the blue subpixels (B) of arrangement, green son successively toward last column from the first row
Pixel (G) and red sub-pixel (R)；
Step 2, set M, K and be positive integer and K less than or equal to M, by the institute in addition to the second row sub-pixel
Stating multiple sub-pixel is divided into first to M to be total to M scanning group, and wherein, k-th scanning group includes: N,
N+2, N+4, N+3, N+5 and N+7 row sub-pixel, N is equal to 6K-5；
Step 3, first scan the second row sub-pixel, scanning the first to m-th scanning group the most successively,
All according to N, N+2, N+4, N+3, N+5 and N+7 row in each scanning group
The order of pixel scans successively；
Data signal (Data) writes each sub-pixel according to scanning sequency makes it luminous, with string sub-pixel
In the brightness of adjacent two sub-pixels different.
2. the driving method of display panels as claimed in claim 1, it is characterised in that described step
It is respectively the first brightness and the second brightness with the brightness of two sub-pixels adjacent in string sub-pixel, wherein in 3
First brightness is more than the second brightness.
3. the driving method of display panels as claimed in claim 2, it is characterised in that described step
In 3, the brightness of the second row sub-pixel is the second brightness, N, the N+2 in each scanning group and
The brightness of N+4 row sub-pixel is the first brightness, N+3, N+5 and N+7 row sub-pixel bright
Degree is the second brightness.
4. the driving method of display panels as claimed in claim 2, it is characterised in that described step
In 3, the brightness of the second row sub-pixel is the first brightness, N, the N+2 in each scanning group and
The brightness of N+4 row sub-pixel is the second brightness, N+3, N+5 and N+7 row sub-pixel bright
Degree is the first brightness.
5. the driving method of display panels as claimed in claim 2, it is characterised in that described step
In 3, the brightness of the second row odd column sub-pixel is the second brightness, and the brightness of the second row even column sub-pixel is
One brightness, Nth row odd column, N+2 row odd column and the N+4 row odd number in each scanning group
The brightness of row sub-pixel is the first brightness, Nth row even column, N+2 row even column and N+4 row
The brightness of even column sub-pixel is the second brightness, N+3 row odd column, N+5 row odd column and
The brightness of N+7 row odd column sub-pixel is the second brightness, N+3 row even column, N+5 row even column,
And the brightness of N+7 row even column sub-pixel is the first brightness.
6. the driving method of display panels as claimed in claim 2, it is characterised in that described step
In 3, the brightness of the second row odd column sub-pixel is the first brightness, and the brightness of the second row even column sub-pixel is
Two brightness, Nth row odd column, N+2 row odd column and the N+4 row odd number in each scanning group
The brightness of row sub-pixel is the second brightness, Nth row even column, N+2 row even column and N+4 row
The brightness of even column sub-pixel is the first brightness, N+3 row odd column, N+5 row odd column and
The brightness of N+7 row odd column sub-pixel is the first brightness, N+3 row even column, N+5 row even column,
And the brightness of N+7 row even column sub-pixel is the second brightness.
7. the driving method of display panels as claimed in claim 1, it is characterised in that by changing
Write the voltage swing of data signal (Data) of each sub-pixel to change the brightness of each sub-pixel.
8. the driving method of display panels as claimed in claim 1, it is characterised in that with string
The red son of the most continuously arranged blue subpixels (B), a green sub-pixels (G) and one in pixel
Pixel (R) collectively forms a display pixel.
9. the driving method of display panels as claimed in claim 1, it is characterised in that described liquid crystal
The corresponding every a line sub-pixel of display floater is provided with a scan line, and corresponding every string sub-pixel is provided with a data
Line.
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| 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 |
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