CN110264969A - Display driving method and display device - Google Patents
Display driving method and display device Download PDFInfo
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- CN110264969A CN110264969A CN201910477758.7A CN201910477758A CN110264969A CN 110264969 A CN110264969 A CN 110264969A CN 201910477758 A CN201910477758 A CN 201910477758A CN 110264969 A CN110264969 A CN 110264969A
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- 238000004364 calculation method Methods 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 description 7
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- 238000006243 chemical reaction Methods 0.000 description 2
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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Abstract
The present invention provides a kind of display driving method and display panel.The display driving method includes the following steps: step S1, provides a display panel；Step S2, the original gradation of each sub-pixel in present frame picture is obtained；Step S3, judge whether present frame picture is heavily loaded picture according to the original gradation of each sub-pixel, if, then the original gradation of each sub-pixel in present frame picture is converted according to preset heavily loaded transfer algorithm, obtain the correction gray scale of each sub-pixel, and each sub-pixel progress picture is driven to show to correct gray scale, otherwise, it directly drives each sub-pixel to carry out picture with original gradation to show.The present invention can reduce driving load, heavily loaded picture avoided to cause driving chip temperature excessively high, guarantee display quality by the way that the original gray-scale of sub-pixel each under heavily loaded picture is converted to correction grayscale.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display driving methods and display device.
Background technique
With the development of display technology, the planes such as liquid crystal display (Liquid Crystal Display, LCD) display dress
It sets because having many advantages, such as that high image quality, power saving, fuselage is thin and has a wide range of application, and is widely used in mobile phone, TV, a number
The various consumer electrical products such as word assistant, digital camera, laptop, desktop computer, become the master in display device
Stream.
Liquid crystal display panel includes multiple sub-pixels in array arrangement, and each sub-pixel is electrically connected a film crystalline substance
Body pipe (TFT), the grid (Gate) of the TFT are connected to the controlling grid scan line of horizontal direction, and drain electrode (Drain) is connected to vertical side
To data line, source electrode (Source) is then connected to pixel electrode.Apply enough voltage on controlling grid scan line, electricity can be made
Property be connected to all TFT on this controlling grid scan line and open, thus the signal voltage on data line can writing pixel, control
The light transmittance of liquid crystal realizes display effect.
Continuous pursuit with people to liquid crystal display panel display quality, clearer image quality (8K) and faster refreshing speed
The liquid crystal display panel of rate (120Hz) has become a kind of new development trend.However the liquid crystal of 8K or more high-res
Show panel for drive system, it is meant that more pixels to be driven, according to conventional 1G1D pixel structure, each pixel
Charging time can reduce by one times relative to 4K panel；In addition, the demand of refresh rate can further decrease pixel faster
Charging time, so as to cause a series of image quality problem.
In order to solve the problems, such as that the charging time is few, scanning halves the framework that data double (Half Gate 2Data, HG2D)
It is suggested, so-called HG2D framework, is exactly in scanning, two adjacent row sub-pixels scan simultaneously, while making the number of data line
Amount doubles, i.e., two data lines are arranged in each column sub-pixel, the two row sub-pixels difference being synchronously scanned in same row sub-pixel
It accesses corresponding two data of the column sub-pixel and ensure that charging effect so that the charging time increases one times；But in height
Pixel quantity is the several times of general panels in resolution panel, under heavily loaded picture, i.e., when low ash rank is with grayscale frequent switching, and meeting
Lead to the significantly charge and discharge of driving chip frequent progress, so that temperature rapid increase for driving chip, eventually leads to driving
Chip overload can not work normally, and power consumption is very big；Currently, mainly being solved under heavily loaded picture by increasing the method for cooling fin
The excessively high problem of driving chip temperature, but the increase of cooling fin undoubtedly will lead to the increase of cost, and structure is also sufficiently complex；
Summary of the invention
The purpose of the present invention is to provide a kind of display driving method, it is excessively high to solve driving chip temperature under heavily loaded picture
Problem.
The object of the invention is also to provide a kind of display device, driving chip temperature is excessively high under the heavily loaded picture of solution is asked
Topic.
To achieve the above object, the present invention provides a kind of display driving method, include the following steps:
Step S1, a display panel is provided, the display panel includes multi-strip scanning line, multiple data lines and multiple sub- pictures
Element, the multiple array of sub-pixels arrangement, corresponding every a line sub-pixel are equipped with the scan line for being electrically connected the row sub-pixel,
Corresponding each column sub-pixel is equipped with two data lines；
It is a driving group, the electric connection with two row sub-pixels in the same driving group per two adjacent row sub-pixels
Two scan lines receive same scanning signal, in the same driving group and in a column direction in adjacent two sub-pixels
One be electrically connected the corresponding data line of its column sub-pixel, it is corresponding that another is electrically connected its column sub-pixel
Another data line；
Step S2, the original gradation of each sub-pixel in present frame picture is obtained；
Step S3, judge whether present frame picture is heavily loaded picture according to the original gradation of each sub-pixel, if so, pressing
The original gradation of each sub-pixel in present frame picture is converted according to preset heavily loaded transfer algorithm, obtains each height picture
The correction gray scale of element, and drive each sub-pixel progress picture to show to correct gray scale, it is otherwise, directly each with original gradation driving
A sub-pixel carries out picture and shows.
In the step S3, when the original gradation of two row sub-pixels of a driving group in two adjacent driving groups is equal
Greater than the first gray scale, the original gradation of two row sub-pixels of another driving group is respectively less than the second gray scale, and the first gray scale is greater than
When the second gray scale, determine that present frame picture is heavily loaded picture, otherwise, it is determined that present frame picture is non-heavily loaded picture.
The sub-pixel of odd-numbered line is electrically connected the corresponding data line of the column sub-pixel, same row in same row sub-pixel
The sub-pixel of even number line is electrically connected the corresponding another data line of the column sub-pixel in sub-pixel.
The preset heavily loaded transfer algorithm specifically includes:
Calculate the comparison gray scale of each sub-pixel, the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(i+2, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel in present frame picture, YG(i, j)For present frame picture
In the i-th row jth column sub-pixel original gradation, YG(i+2, j)For the original ash of the i-th+2 row jth column sub-pixel in present frame picture
Degree, i and j are positive integer, and the i-th row sub-pixel and i+1 row sub-pixel are in the same driving group；
Calculate the weight complement value of each sub-pixel, the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel and i+1 row jth column sub-pixel；
Δ 1=∣ YG(i, j)-YG(i+2, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+3, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+2, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+3, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+2, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+3, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、
YG(i+2, j+2)、YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, i-th+2
+ 1 row of row jth, the column of i+1 row jth+1, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row the
The original gray-scale of j+2 column and+2 column sub-pixel (30) of the i-th+3 row jth；
According to the weight complement value of each sub-pixel and preset weight look-up table, each sub-pixel correction weight is determined；
The comparison gray scale of each sub-pixel is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel then with formula 1, and the correction gray scale of the sub-pixel is otherwise calculated with formula 2；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 1；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 2；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel (30), ratio is the i-th row jth column sub-pixel school
Positive weights.
The jth column, the column of jth+1 and+2 column sub-pixel of jth are respectively blue subpixels, green sub-pixels and red sub- picture
Element.
4n-3 row and 4n row sub-pixel are electrically connected the corresponding data of the column sub-pixel in same row sub-pixel
Line, 4n-2 row and 4n-1 row sub-pixel are electrically connected the corresponding another data line of the column sub-pixel, and n is positive integer.
The preset heavily loaded transfer algorithm specifically includes:
Calculate the comparison gray scale of each sub-pixel, the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(k, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel in present frame picture, YG(i, j)For present frame picture
In the i-th row jth column sub-pixel original gradation, YG(k, j)For the original gradation of row k jth column sub-pixel in present frame picture, i,
J and k is positive integer, and as i=4n-3, k=i+3, as i=4n-2, k=i+1, and the i-th row sub-pixel and i+1 row
Pixel is in the same driving group；
Calculate the weight complement value of each sub-pixel, the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel and i+1 row jth column sub-pixel；
Δ 1=∣ YG(i, j)-YG(i+3, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+2, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+3, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+2, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+3, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+2, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、
YG(i+2, j+2)、YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, i-th+2
+ 1 row of row jth, the column of i+1 row jth+1, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row the
The original gray-scale of j+2 column and+2 column sub-pixel of the i-th+3 row jth；
According to the weight complement value of each sub-pixel and preset weight look-up table, each sub-pixel correction weight is determined；
The comparison gray scale of each sub-pixel is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel then with formula 3, and the correction gray scale of the sub-pixel is otherwise calculated with formula 4；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 3；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 4；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel, ratio is the i-th row jth column sub-pixel correction power
Weight.
The jth column, the column of jth+1 and+2 column sub-pixel of jth are respectively blue subpixels, green sub-pixels and red sub- picture
Element.
The difference of first gray scale and the second gray scale is greater than 200.
The present invention also provides a kind of display devices, are driven using above-mentioned display driving method.
Beneficial effects of the present invention: the present invention provides a kind of display driving methods, include the following steps: step S1, mention
For a display panel；Step S2, the original gradation of each sub-pixel in present frame picture is obtained；Step S3, according to each height
The original gradation of pixel judges whether present frame picture is heavily loaded picture, if so, according to preset heavily loaded transfer algorithm to working as
The original gradation of each sub-pixel in previous frame picture is converted, and obtains the correction gray scale of each sub-pixel, and to correct ash
Degree drives each sub-pixel to carry out picture and shows, otherwise, directly drives each sub-pixel to carry out picture with original gradation and shows, lead to
It crosses and the original gray-scale of sub-pixel each under heavily loaded picture is converted into correction grayscale, can reduce driving load, avoid heavily loaded picture
Face causes driving chip temperature excessively high, guarantees display quality.The present invention also provides a kind of display devices, can be avoided heavily loaded picture
Cause driving chip temperature excessively high, guarantees display quality.
Detailed description of the invention
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
In attached drawing,
Fig. 1 is the flow chart of display driving method of the invention；
Fig. 2 is the schematic diagram of the first embodiment of the step S1 of display driving method of the invention；
Fig. 3 is the schematic diagram of the first embodiment of the step S2 of display driving method of the invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Referring to Fig. 1, the present invention provides a kind of display driving method, include the following steps:
Step S1, such as Fig. 2 or as shown in figure 3, provide a display panel, the display panel be HG2D display panel.
Specifically, the display panel includes multi-strip scanning line 10, multiple data lines 20 and multiple sub-pixels 30, described more
A 30 array arrangement of sub-pixel, corresponding every a line sub-pixel 30 are equipped with the scan line 10 for being electrically connected the row sub-pixel 30,
Corresponding each column sub-pixel 30 is equipped with two data lines 20；
It is two row sub-pixels 30 in a driving group 40, with the same driving group 40 per two adjacent row sub-pixels 30
Two scan lines 10 being electrically connected receive the same scanning signal, in the same driving group 40 and adjacent in a column direction
One in two sub-pixels 30 is electrically connected its corresponding data line 20 of column sub-pixel 30, another electric connection
The corresponding another data line 20 of its column sub-pixel 30.
Further, as shown in Figure 2 or Figure 3, the left and right sides of each column sub-pixel 30 is respectively corresponded equipped with a data
Line 20.
Preferably, in the first embodiment of the present invention, the sub-pixel 30 of odd-numbered line electrically connects in same row sub-pixel 30
The corresponding data line 20 of column sub-pixel 30 is connect, the sub-pixel 30 of even number line is electrically connected the column in same row sub-pixel 30
The corresponding another data line 20 of sub-pixel 30, the sub-pixel 30 of specially odd-numbered line shown in corresponding diagram 2 are electrically connected its institute
Data line 20 on the left of column, the sub-pixel 30 of even number line are electrically connected the data line 20 on the right side of its column.
Preferably, in the second embodiment of the present invention, 4n-3 row and 4n row sub-pixel 30 in same row sub-pixel
It is electrically connected the corresponding data line 20 of column sub-pixel 30,4n-2 row and 4n-1 row sub-pixel 30 are electrically connected the column
The corresponding another data line 20 of sub-pixel 30, n are positive integer, are specially 4n-3 row and 4n row picture shown in corresponding diagram 3
Element 30 is electrically connected the data line 20 on the left of its column, and 4n-2 row and 4n-1 row sub-pixel 30 are electrically connected its institute
Data line 20 on the right side of column.
Further, in the first and second embodiments of the invention, the color of the sub-pixel 30 of same row is identical, same
Capable sub-pixel 30 is repeated in arrangement according to the order of blue, green and red sub-pixel.
Step S2, the original gradation of each sub-pixel 30 in present frame picture is obtained.
Step S3, judge whether present frame picture is heavily loaded picture according to the original gradation of each sub-pixel 30, if so,
The original gradation of each sub-pixel 30 in present frame picture is converted according to preset heavily loaded transfer algorithm, is obtained each
The correction gray scale of sub-pixel 30, and drive each progress of sub-pixel 30 picture to show to correct gray scale, otherwise, directly with original ash
Degree drives each sub-pixel 30 to carry out picture and shows.
Specifically, in the step S3, when two row sub-pixels of a driving group 40 in two adjacent driving groups 40
30 original gradation is all larger than the first gray scale, and the original gradation of two row sub-pixels 30 of another driving group 40 is respectively less than the second ash
Degree, and the first gray scale be greater than the second gray scale when, determine present frame picture be heavily loaded picture, otherwise, it is determined that present frame picture be it is non-
Heavily loaded picture.
Preferably, the difference of first gray scale and the second gray scale is greater than 200.
For example, when the original gray-scale of two row sub-pixels 30 in first driving group 40 is 0, second driving group
The original gray-scale of two row sub-pixels 30 in 40 is 255, and when first driving group 40 is adjacent with the second driving group 40, is determined
Present frame picture is heavily loaded picture.
Preferably, as shown in Fig. 2, in the first embodiment of the present invention, the preset heavily loaded transfer algorithm specifically wraps
It includes:
Calculate the comparison gray scale of each sub-pixel 30, the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(i+2, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel 30 in present frame picture, YG(i, j)For present frame picture
The original gradation of i-th row jth column sub-pixel 30, YG in face(i+2, j)For the i-th+2 row jth column sub-pixel 30 in present frame picture
Original gradation, i and j are positive integer, and the i-th row sub-pixel 30 and i+1 row sub-pixel 30 are in the same driving group 40；
Calculate the weight complement value of each sub-pixel 30, the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel 30 and i+1 row jth column sub-pixel 30；
Δ 1=∣ YG(i, j)-YG(i+2, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+3, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+2, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+3, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+2, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+3, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、
YG(i+2, j+2)、YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, i-th+2
+ 1 row of row jth, the column of i+1 row jth+1, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row the
The original gray-scale of j+2 column and+2 column sub-pixel 30 of the i-th+3 row jth；
According to the weight complement value of each sub-pixel 30 and preset weight look-up table, each correction of sub-pixel 30 power is determined
Weight；
The comparison gray scale of each sub-pixel 30 is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel 30 then with formula 1, and the correction gray scale of the sub-pixel 30 is otherwise calculated with formula 2；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 1；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 2；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel 30, ratio is 30 school of the i-th row jth column sub-pixel
Positive weights.
In the first embodiment of the present invention, the jth column, the column of jth+1 and+2 column sub-pixel 30 of jth are respectively blue
Pixel, green sub-pixels and red sub-pixel.
Illustrate in the first embodiment of the present invention by taking the 1st column sub-pixel 30 of the 1st row and the 1st column sub-pixel 30 of the 2nd row as an example
Heavily loaded transfer algorithm specific conversion process:
Calculate the comparison gray scale of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row, the meter of the relatively gray scale
Calculate formula are as follows:
XG(1,1)=(YG(1,1)+YG(3,1))/2；
XG(2,1)=(YG(2,1)+YG(4,1))/2；
Calculate the weight complement value of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row, the meter of the weight complement value
Calculate formula are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Δ 1=∣ YG(1,1)-YG(3,1)∣, Δ 2=∣ YG(2,1)-YG(4,1)∣；
Δ 3=∣ YG(1,2)-YG(3,2)∣, Δ 4=∣ YG(2,2)-YG(4,2)∣；
Δ 5=∣ YG(1,3)-YG(3,3)∣, Δ 6=∣ YG(2,3)-YG(4,3)∣；
According to the 1st column sub-pixel 30 of the 1st row and 30 weight complement value of the 2nd the 1st column sub-pixel of row and preset weight look-up table,
Determine the correction weights ratio of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row；
The comparison gray scale of each sub-pixel 30 is compared with original gradation；
If comparing gray scale is greater than or equal to original gradation,
MG(1,1)=YG(1,1)+ratio×(XG(1,1)-YG(1,1))；
MG(2,1)=YG(2,1)+ratio×(XG(2,1)-YG(2,1))；
If comparing gray scale is less than original gradation,
MG(1,1)=YG(1,1-ratio×(YG(1,1)-XG(1,1))；
MG(2,1)=YG(2,1)-ratio×(YG(2,1)-XG(2,1))。
Specifically, as shown in figure 3, in the second embodiment of the present invention, the preset heavily loaded transfer algorithm is specifically wrapped
It includes:
Calculate the comparison gray scale of each sub-pixel (30), the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(k, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel (30) in present frame picture, YG(I,j)For present frame
The original gradation of i-th row jth column sub-pixel (30), YG in picture(k, j)For row k jth column sub-pixel (30) in present frame picture
Original gradation, i, j and k are positive integer, and as i=4n-3, k=i+3, as i=4n-2, k=i+1, the i-th row picture
Element 30 and i+1 row sub-pixel 30 are in the same driving group 40；
Calculate the weight complement value of each sub-pixel 30, the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel 30 and i+1 row jth column sub-pixel 30；
Δ 1=∣ YG(i, j)-YG(i+3, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+2, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+3, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+2, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+3, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+2, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、
YG(i+2, j+2)、YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, i-th+2
+ 1 row of row jth, the column of i+1 row jth+1, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row the
The original gray-scale of j+2 column and+2 column sub-pixel 30 of the i-th+3 row jth；
According to the weight complement value of each sub-pixel 30 and preset weight look-up table, each correction of sub-pixel 30 power is determined
Weight；
The comparison gray scale of each sub-pixel 30 is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel 30 then with formula 3, and the correction gray scale of the sub-pixel 30 is otherwise calculated with formula 4；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 3；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 4；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel 30, ratio is 30 school of the i-th row jth column sub-pixel
Positive weights.
Illustrate in the second embodiment of the present invention by taking the 1st column sub-pixel 30 of the 1st row and the 1st column sub-pixel 30 of the 2nd row as an example
Heavily loaded transfer algorithm specific conversion process:
Calculate the comparison gray scale of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row, the meter of the relatively gray scale
Calculate formula are as follows:
XG(1,1)=(YG(1,1)+YG(4,1))/2；
XG(2,1)=(YG(2,1)+YG(3,1))/2；
Calculate the weight complement value of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row, the meter of the weight complement value
Calculate formula are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Δ 1=∣ YG(1,1)-YG(4,1)∣, Δ 2=∣ YG(2,1)-YG(3,1)∣；
Δ 3=∣ YG(1,2)-YG(4,2)∣, Δ 4=∣ YG(2,2)-YG(3,2)∣；
Δ 5=∣ YG(1,3)-YG(4,3)∣, Δ 6=∣ YG(2,3)-YG(3,3)∣；
According to the 1st column sub-pixel 30 of the 1st row and 30 weight complement value of the 2nd the 1st column sub-pixel of row and preset weight look-up table,
Determine the correction weights ratio of the 1st column sub-pixel 30 and the 1st column sub-pixel 30 of the 2nd row of the 1st row；
The comparison gray scale of each sub-pixel 30 is compared with original gradation；
If comparing gray scale is greater than or equal to original gradation,
MG(1,1)=YG(1,1)+ratio×(XG(1,1)-YG(1,1))；
MG(2,1)=YG(2,1)+ratio×(XG(2,1)-YG(2,1))；
If comparing gray scale is less than original gradation,
MG(1,1)=YG(1,1)-ratio×(YG(1,1)-XG(1,1))；
MG(2,1)=YG(2,1)-ratio×(YG(2,1)-XG(2,1))。
To, it is of the invention by the way that the original gray-scale of sub-pixel each under heavily loaded picture is converted to correction grayscale, it can
Driving load is reduced, heavily loaded picture is avoided to cause driving chip temperature excessively high, guarantees display quality.
In addition, being driven the present invention also provides a kind of display device using above-mentioned display driving method.
In conclusion including the following steps: step S1 the present invention provides a kind of display driving method, providing a display
Panel；Step S2, the original gradation of each sub-pixel in present frame picture is obtained；Step S3, according to the original of each sub-pixel
Beginning gray scale judges whether present frame picture is heavily loaded picture, if so, according to preset heavily loaded transfer algorithm to present frame picture
In the original gradation of each sub-pixel converted, obtain the correction gray scale of each sub-pixel, and each to correct gray scale driving
A sub-pixel carries out picture and shows, otherwise, directly drives each sub-pixel to carry out picture with original gradation and shows, by will be heavily loaded
The original gray-scale of each sub-pixel is converted to correction grayscale under picture, can reduce driving load, heavily loaded picture is avoided to cause to drive
Dynamic chip temperature is excessively high, guarantees display quality.The present invention also provides a kind of display devices, and can be avoided heavily loaded picture causes to drive
Chip temperature is excessively high, guarantees display quality.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding changes and modifications are made in design, and all these change and modification all should belong to the claims in the present invention
Protection scope.
Claims (10)
1. a kind of display driving method, which comprises the steps of:
Step S1, a display panel is provided, the display panel includes multi-strip scanning line (10), multiple data lines (20) and multiple
Sub-pixel (30), the multiple sub-pixel (30) array arrangement, corresponding every a line sub-pixel (30) is equipped with an electric connection should
The scan line (10) of row sub-pixel (30), corresponding each column sub-pixel (30) are equipped with two data lines (20)；
It is a driving group (40) per two adjacent row sub-pixels (30), with two row sub-pixels in the same driving group (40)
(30) two scan lines (10) of electric connection receive the same scanning signal, in the same driving group (40) and in column side
One in adjacent two sub-pixels (30) is electrically connected its corresponding data line of column sub-pixel (30) upwards
(20), another is electrically connected the corresponding another data line (20) of its column sub-pixel (30)；
Step S2, the original gradation of each sub-pixel (30) in present frame picture is obtained；
Step S3, judge whether present frame picture is heavily loaded picture according to the original gradation of each sub-pixel (30), if so, pressing
The original gradation of each sub-pixel (30) in present frame picture is converted according to preset heavily loaded transfer algorithm, is obtained each
The correction gray scale of sub-pixel (30), and drive each sub-pixel (30) progress picture to show to correct gray scale, otherwise, directly with original
Beginning gray scale drives each sub-pixel (30) to carry out picture and shows.
2. display driving method as described in claim 1, which is characterized in that in the step S3, when two adjacent drivings
The original gradation of two row sub-pixels (30) of a driving group (40) in group (40) is all larger than the first gray scale, another driving group
(40) original gradation of two row sub-pixels (30) is respectively less than the second gray scale, and when the first gray scale is greater than the second gray scale, determines to work as
Previous frame picture is heavily loaded picture, otherwise, it is determined that present frame picture is non-heavily loaded picture.
3. display driving method as claimed in claim 2, which is characterized in that the sub- picture of odd-numbered line in same row sub-pixel (30)
Plain (30) are electrically connected the corresponding data line (20) of the column sub-pixel (30), the son of even number line in same row sub-pixel (30)
Pixel (30) is electrically connected the corresponding another data line (20) of the column sub-pixel (30).
4. display driving method as claimed in claim 3, which is characterized in that the preset heavily loaded transfer algorithm specifically wraps
It includes:
Calculate the comparison gray scale of each sub-pixel (30), the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(i+2, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel (30) in present frame picture, YG(i, j)For present frame picture
In the i-th row jth column sub-pixel (30) original gradation, YG(i+2, j)For the i-th+2 row jth column sub-pixel (30) in present frame picture
Original gradation, i and j are positive integer, and the i-th row sub-pixel (30) and i+1 row sub-pixel (30) are in the same driving group
(40) in；
Calculate the weight complement value of each sub-pixel (30), the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel (30) and i+1 row jth column sub-pixel (30)；
Δ 1=∣ YG(i, j)-YG(i+2, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+3, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+2, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+3, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+2, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+3, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、YG(i+2, j+2)、
YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, the i-th+2 row jth+1
Row, i+1 row jth+1 column, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row jth+2 column and
The original gray-scale of+2 column sub-pixel (30) of i-th+3 row jth；
According to the weight complement value of each sub-pixel (30) and preset weight look-up table, each sub-pixel (30) correction power is determined
Weight；
The comparison gray scale of each sub-pixel (30) is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel (30) then with formula 1, and the correction gray scale of the sub-pixel (30) is otherwise calculated with formula 2；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 1；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 2；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel (30), ratio is i-th row jth column sub-pixel (30) school
Positive weights.
5. display driving method as claimed in claim 4, which is characterized in that the jth column, the column of jth+1 and jth+2 arrange sub- picture
Plain (30) are respectively blue subpixels, green sub-pixels and red sub-pixel.
6. display driving method as claimed in claim 2, which is characterized in that 4n-3 row and 4n row in same row sub-pixel
Sub-pixel (30) is electrically connected the corresponding data line (20) of the column sub-pixel (30), 4n-2 row and 4n-1 row sub-pixel
(30) it is electrically connected the corresponding another data line (20) of the column sub-pixel (30), n is positive integer.
7. display driving method as claimed in claim 6, which is characterized in that the preset heavily loaded transfer algorithm specifically wraps
It includes:
Calculate the comparison gray scale of each sub-pixel (30), the calculation formula of the relatively gray scale are as follows:
XG(i, j)=(YG(i, j)+YG(k, j))/2；
Wherein, XG(i, j)For the comparison gray scale of the i-th row jth column sub-pixel (30) in present frame picture, YG(i, j)For present frame picture
In the i-th row jth column sub-pixel (30) original gradation, YG(k, j)For the original of row k jth column sub-pixel (30) in present frame picture
Beginning gray scale, i, j and k are positive integer, and as i=4n-3, k=i+3, as i=4n-2, k=i+1, and the i-th row sub-pixel
(30) and i+1 row sub-pixel (30) is in the same driving group (40)；
Calculate the weight complement value of each sub-pixel (30), the calculation formula of the weight complement value are as follows:
Δ=(Δ 1+ Δ 2+ Δ 3+ Δ 4+ Δ 5+ Δ 6)/6；
Wherein, Δ is the weight complement value of the i-th row jth column sub-pixel (30) and i+1 row jth column sub-pixel (30)；
Δ 1=∣ YG(i, j)-YG(i+3, j)∣, Δ 2=∣ YG(i+1, j)-YG(i+2, j)∣；
Δ 3=∣ YG(i, j+1)-YG(i+3, j+1)∣, Δ 4=∣ YG(i+1, j+1)-YG(i+2, j+1)∣；
Δ 5=∣ YG(i, j+2)-YG(i+3, j+2)∣, Δ 6=∣ YG(i+1, j+2)-YG(i+2, j+2)∣；
The YG(i+1, j)、YG(i+3, j)、YG(i, j+1)、YG(i+2, j+1)、YG(i+1, j+1)、YG(i+3, j+1)、YG(i, j+2)、YG(i+2, j+2)、
YG(i+1, j+2)And YG(i+3, j+2)Respectively i+1 row jth column, the i-th+3 row jth column, the i-th row jth+1 column, the i-th+2 row jth+1
Row, i+1 row jth+1 column, the i-th+3 row jth+1 column, the i-th row jth+2 column, the i-th+2 row jth+2 column, i+1 row jth+2 column and
The original gray-scale of+2 column sub-pixel (30) of i-th+3 row jth；
According to the weight complement value of each sub-pixel (30) and preset weight look-up table, each sub-pixel (30) correction power is determined
Weight；
The comparison gray scale of each sub-pixel (30) is compared with original gradation, if comparing gray scale more than or equal to original ash
Degree calculates the correction gray scale of the sub-pixel (30) then with formula 3, and the correction gray scale of the sub-pixel (30) is otherwise calculated with formula 4；
MG(i, j)=YG(i, j)+ratio×(XG(i, j)-YG(i, j)), formula 3；
MG(i, j)=YG(i, j)-ratio×(YG(i, j)-XG(i, j)), formula 4；
Wherein, MG(i, j)For the correction gray scale of the i-th row jth column sub-pixel (30), ratio is i-th row jth column sub-pixel (30) school
Positive weights.
8. display driving method as claimed in claim 7, which is characterized in that the jth column, the column of jth+1 and jth+2 arrange sub- picture
Plain (30) are respectively blue subpixels, green sub-pixels and red sub-pixel.
9. display driving method as claimed in claim 2, which is characterized in that the difference of first gray scale and the second gray scale is big
In 200.
10. a kind of display device, which is characterized in that carried out using display driving method as described in any one of claim 1 to 9
Driving.
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Effective date of registration: 20210622 Address after: No. 338, Fangzhou Road, Suzhou Industrial Park, Suzhou, Jiangsu 215000 Patentee after: Suzhou Huaxing Optoelectronic Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: TCL China Star Optoelectronics Technology Co.,Ltd. |
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