CN110264950A - Brightness adjusting method and display device - Google Patents
Brightness adjusting method and display device Download PDFInfo
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- CN110264950A CN110264950A CN201910573745.XA CN201910573745A CN110264950A CN 110264950 A CN110264950 A CN 110264950A CN 201910573745 A CN201910573745 A CN 201910573745A CN 110264950 A CN110264950 A CN 110264950A
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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Abstract
The present invention relates to a kind of brightness adjusting method and display devices.The brightness adjusting method can be to color each in display area and with the sub-pixel of grayscale value, carry out grayscale adjustment, to keep the brightness of the sub-pixel of same original gray-scale value more uniform, so that it is more uniform to be shone using the OLED display of the brightness adjusting method.
Description
Technical field
The present invention relates to field of display technology, more particularly to brightness adjusting method and display device.
Background technique
In recent years, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display by
Step replaces cathode-ray tube (Cathode Ray Tube, CRT) display, becomes the main product in monitor market.
In traditional technology, OLED display screen shines, usually by its internal sub-pixel electroluminescent being arranged.
Applicant has found during realizing traditional technology: traditional OLED display screen luminescence display is uneven.
Summary of the invention
Based on this, it is necessary to for OLED display screen luminescence display unevenness problem present in traditional technology, provide one kind
Brightness adjusting method and display device.
A kind of brightness adjusting method carries out brightness adjustment, the display area tool for the original image to display area
There are multiple sub-pixels, the display area includes first area and the second area for surrounding the first area, comprising:
Obtain the original gray-scale value of all first color sub-pixels in the display area, and by all first colors
The original gray-scale value of sub-pixel is divided at least one grayscale section；For each grayscale section:
From one original gray-scale value of the grayscale interval selection as mark grayscale value, judge in the display area, ash
Rank value is the uniform value of brightness of all first color sub-pixels of the mark grayscale value；
If the uniform value of brightness is lower than preset value, for each original gray-scale value in the grayscale section:
Obtain all first color sub-pixels that grayscale value in the first area is the original gray-scale value first is flat
Equal brightness, and on the basis of first average brightness, adjusting grayscale value in the second area is the original gray-scale value
The grayscale value of all first color sub-pixels, so as to adjust the brightness of the first color sub-pixels all in the second area.
Above-mentioned brightness adjusting method can carry out grayscale to color each in display area and with the sub-pixel of grayscale value
Adjustment, to keep the brightness of the sub-pixel of same original gray-scale value more uniform, so that using the brightness adjusting method
OLED display shines more uniform.
Detailed description of the invention
Fig. 1 is the pixel arrangement structural schematic diagram of display area in the application one embodiment.
Fig. 2 is the region division schematic diagram of display area in the application one embodiment.
Fig. 3 is the flow diagram of brightness adjusting method in the application one embodiment.
Fig. 4 is the region division schematic diagram of display area in another embodiment of the application.
Fig. 5 is the flow diagram of brightness adjusting method in another embodiment of the application.
Fig. 6 is the flow diagram of brightness adjusting method in another embodiment of the application.
Fig. 7 is the idiographic flow schematic diagram of the step S300 of brightness adjusting method in the application one embodiment.
Fig. 8 is the idiographic flow schematic diagram of the step S300 ' of brightness adjusting method in the application one embodiment.
Fig. 9 is the obtaining step schematic diagram of the uniform value of brightness in the application one embodiment.
Figure 10 is the region division schematic diagram of display area in another embodiment of the application.
Figure 11 is the region division schematic diagram of display area in another embodiment of the application.
Wherein, meaning representated by each drawing reference numeral is respectively as follows:
10, display area；
110, pixel unit；
112, sub-pixel；
12, first area；
14, second area；
140, subregion is shown；
142, third region；
144, the fourth region.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
As shown in Figure 1, in general, the display area 10 of OLED display screen usually has multiple pixel units 110, each
Pixel unit 110 is made of R (red) sub-pixel, G (green) sub-pixel and B (blue) sub-pixel.Therefore, the viewing area
Domain 10 i.e. have multiple sub-pixels 112, the multiple sub-pixel 112 include multiple red sub-pixels, multiple green sub-pixels and
Multiple blue subpixels.The multiple sub-pixel 112 in the display area 10 shines simultaneously constitutes image.
When constituting image, the grayscale value of different subpixel 112 is different, the brightness of sub-pixel 112 corresponding to different grayscale values
Also different.In general, the brightness of the sub-pixel 112 of the same color of same grayscale value should be identical, when same grayscale
When the brightness difference of the sub-pixel 112 of the same color of value, that is, constitute the uneven problem of display.Embodiments herein is directed to
The uneven problem of OLED display screen display, provides a kind of brightness adjusting method.
In present embodiments, the image that grayscale adjusts preceding display area 10 is known as original image, grey contrast
The image of display area 10 after whole is known as image after adjusting.The grayscale value of the corresponding sub-pixel 112 of original image is known as original
Beginning grayscale value.
Brightness adjusting method in the application needs the sub-pixel 112 for each color individually to carry out grayscale adjustment, leads to
It crosses grayscale adjustment and realizes brightness regulation.The application is illustrated by taking the brightness adjusting method of the first color sub-pixels as an example.First
Color sub-pixels can be any one of red sub-pixel, blue subpixels and green sub-pixels.
In embodiments herein, as shown in Fig. 2, display area 10 is divided into first area 12 and second area
14.The second area 14 surrounds the first area 12.In other words, the display area 10 is divided into first area 12
With second area 14, the first area 12 is the central area of the display area 10；The second area 14 is described aobvious
Show other regions of the region 10 in addition to central area.The first area 12 and the second area 14 collectively form described aobvious
Show region 10.
Generally, for rectangular display area, the division of first area 12 and second area 14, can be will be described aobvious
Show that region 10 is averagely divided into the zonule of 9 homalographics, and the zonule of 9 homalographics is in the column arrangement of 3 rows 3.At this point,
Using using most intermediate zonule as first area 12, other regions are second area 14.For round or ellipse display area,
Can also find with the same center in display area 10, similar shape, and area is 1/9th zonule of display area as the
Two regions 14.It repeats no more.
As shown in figure 3, the brightness adjusting method includes the following steps:
S100, obtains the original gray-scale value of all first color sub-pixels in the display area, and by described all
The original gray-scale value of one color sub-pixels is divided at least one grayscale section.
Grayscale adjustment is carried out for the first color sub-pixels in display area 10, to realize brightness regulation.First face
Sub-pixels can be any one of red sub-pixel, green sub-pixels and blue subpixels.When each in display area 10
Sub-pixel 112 shines when forming original image, obtains the original gray-scale value of all first color sub-pixels.And obtaining all the
After the original gray-scale value of one color sub-pixels, interval division is carried out to all original gray-scale values, so that original gray-scale value be drawn
It is divided at least one grayscale section.
For example, 112 grayscale value range of sub-pixel is generally 0 to 255 grayscale when shining, i.e., for existing display screen
[0,255].Here interval division will [0,255] grayscale be divided at least one section, for example, can by [0,255] ash
Rank is divided into two grayscale sections of [0,128] and [129,255].
It should be noted that step S100 can be after display area 10 forms original image in the present embodiment, obtain
All first color sub-pixels correspond to the original gray-scale value of the original image in display area 10, and will the corresponding original graph
The original gray-scale value of picture is at least one section by regular partition.In other words, the step S100 in the present embodiment can be by
Certain rule carries out interval division to the real-time original gray-scale value of the first color sub-pixels, thus the grayscale area after being divided
Between.For example, being [32,192] when original image is the real-time original gray-scale value of the first color sub-pixels, just by [32,192] grayscale
It is divided into [32,72], [73,112], [113,152] and [153,192] four grayscale sections.
In other embodiments, [0,255] grayscale can also be first divided into fixed grayscale section, then in display area
After 10 form original images, the original gray-scale value of all first color sub-pixels is carried out corresponding with the grayscale section of fixation, is obtained
Grayscale section after to division.For example, three grayscale sections: [0,96], [97,192] first can be divided into [0,255] grayscale
[193,255].After display area 10 forms original image, it is assumed that the real-time original gray-scale value of the first color sub-pixels is
The grayscale section of [32,192] grayscale and [0,96], [97,192] and [193,255] is then corresponded to, is obtained by [32,192]
Two grayscale sections of [32,96] and [97,192].
Original gray-scale value can be divided into the grayscale section of multiple equal parts, can also be drawn by the way of not equal part
Point.Under normal circumstances, as the raising of grayscale, brightness improve, the display unevenness state difference of grayscale part is small, therefore, higher
Grayscale under, grayscale section can be greater than lower grayscale under grayscale section, so as to carry out finer compensation.
S200 judges the display area from one original gray-scale value of the grayscale interval selection as mark grayscale value
Interior, grayscale value is the uniform value of brightness of all first color sub-pixels of the mark grayscale value.
In step S100, after dividing grayscale section, each grayscale section all includes at least one original gray-scale value.For every
The one grayscale section, from one original gray-scale value of the grayscale interval selection as mark grayscale value.For example, when described original
After grayscale value is divided into [0,96], [97,192] and [193,255] three grayscale sections, it can be selected out of [0,96] grayscale section
Take 0 grayscale as mark grayscale value；150 grayscale are chosen out of [97,192] grayscale section as mark grayscale value；From [193,
255] 255 grayscale are chosen in grayscale section as mark grayscale value.
Judge in display area 10 after choosing mark grayscale value for each grayscale section, grayscale value is mark ash
The uniform value of brightness of all first color sub-pixels of rank value.For example, grayscale value can be chosen for [97,192] grayscale section
Mark grayscale value is used as 150 original gray-scale value.Judged in display area 10 again, all first colors that grayscale value is 150
The uniform value of the brightness of sub-pixel.
S300, if the uniform value of the brightness is lower than preset value, for each original gray-scale value in the grayscale section:
The first average brightness of all first color sub-pixels that grayscale value in the first area is the original gray-scale value is obtained, and
On the basis of first average brightness, all first face that grayscale value in the second area is the original gray-scale value are adjusted
The grayscale value of sub-pixels is with compensation brightness.
Specifically, obtaining a mark grayscale value and the mark grayscale value for each grayscale section in step S200
The uniform value of brightness of corresponding all first color sub-pixels.It is corresponding by calculation flag grayscale value in embodiments herein
The first color sub-pixels the uniform value of brightness, determine in the grayscale section, all first color sub-pixels in display area 10
Each original gray-scale value adjustment mode.That is: judge grayscale value for all first color sub-pixels of the mark grayscale value
The uniform value of brightness, if brightness it is uniform value be lower than preset value, using the first adjustment mode adjust in the grayscale section own
The original gray-scale value of first color sub-pixels.
The first adjustment mode specifically: obtain all that grayscale value in the first area 12 is the original gray-scale value
First average brightness of one color sub-pixels, and on the basis of first average brightness, it adjusts grey in the second area 14
Rank value is the grayscale value of all first color sub-pixels of the original gray-scale value.I.e. for the grayscale area where mark grayscale value
Between, when the uniform value of brightness is lower than preset value, display area 10 is divided as shown in Figure 2.After division, with the grayscale section
An original gray-scale value for, obtain first area 12 in grayscale value be the original gray-scale value all first color sub-pixels
Average brightness, which is named as the first average brightness.Again on the basis of the first average brightness, second area is adjusted
Grayscale value is the grayscale value of all first color sub-pixels of the original gray-scale value in 14.
In subsequent steps S200 for example, for [97,192] grayscale section, the original ash that grayscale value is 150 is chosen
Rank value is as mark grayscale value.When the uniform value of the brightness for all first color sub-pixels that grayscale value is 150 is lower than preset value:
Adjustment mode: all first color sub-pixels for being 97 for original gray-scale value obtain in first area 12 and own
The brightness for the first color sub-pixels that original gray-scale value is 97, and acquire it and averagely obtain the first average brightness.It is average with first
On the basis of brightness, the first color sub-pixels for being 97 to original gray-scale value in second area 14 carry out grayscale adjustment, thus to the
The first color sub-pixels that original gray-scale value is 97 in two regions 14 carry out luminance compensation.
Likewise, all first color sub-pixels for being 98 for original gray-scale value, adjustment mode: obtain first area 12
Interior all original gray-scale values are the brightness of 98 first color sub-pixels, and acquire it and averagely obtain the first average brightness.With first
It is that 98 first color sub-pixels carry out grayscale adjustment to original gray-scale value in second area 14, thus right on the basis of average brightness
The first color sub-pixels that original gray-scale value is 98 in second area 14 carry out luminance compensation.
The first color sub-pixels corresponding for original gray-scale values all in [97,192] grayscale section, are performed both by above-mentioned tune
Perfect square formula.
Above-mentioned brightness adjusting method, when the uniform value of brightness of corresponding first color sub-pixels of the mark grayscale value is lower than
When preset value, show in display area, the brightness homogeneity for indicating corresponding first color sub-pixels of grayscale value is poor.Institute
State the grayscale adjustment mode for each original gray-scale value for indicating that the uniform value of brightness of grayscale value determines its place grayscale section.This
When, on the basis of the first average brightness in first area, grayscale and bright is carried out to the first color sub-pixels in second area
The adjustment of degree can be such that the identical homochromy sub-pixel luminence of original gray-scale value in the display area is more nearly, and increase entire
The brightness homogeneity of display area.In other words, for the monochrome sub-pixels of same original gray-scale value, when its brightness uniformity compared with
When poor, using entire display area as adjustment region, the identical same sub-pixels of original gray-scale value in entire display area can be made
Brightness is more nearly, to increase the brightness homogeneity of display area.
In another embodiment, the brightness regulation method also has the second regulative mode.In this embodiment, such as Fig. 4
It is shown, display area 10 is divided into multiple display subregions 140.Wherein, each display subregion 140 includes third region
142 and the fourth region 144, the fourth region 144 surround the third region 142.In other words, by the display area 10
After being divided into display subregion 140, each display subregion 140 is also divided into third region 142 and the fourth region
144, the third region 142 is the central area of the display subregion 140；The fourth region 144 is display
Other regions of the region 140 in addition to central area.The third region 142 and the fourth region 144 collectively form described
Show subregion 140.In general, third region 142 and the fourth region 144 drawing with respect to the display subregion 140 where it
Point, it can be identical with respect to the division of display area 10 as first area 12 and second area 14.It repeats no more.
At this point, as shown in figure 5, the brightness adjusting method further include:
S300 ', if the uniform value of the brightness is not less than preset value, for each original gray-scale in the grayscale section
Value: for each display subregion, obtaining grayscale value in the third region is all the first of the original gray-scale value
Second average brightness of color sub-pixels, and on the basis of second average brightness, adjust grayscale value in the fourth region
For the original gray-scale value all first color sub-pixels grayscale value with compensation brightness.
Specifically, obtaining a mark grayscale value and the mark grayscale value for each grayscale section in step S200
The uniform value of brightness of corresponding all first color sub-pixels.It is corresponding by calculation flag grayscale value in embodiments herein
The first color sub-pixels the uniform value of brightness, determine in the grayscale section, all first color sub-pixels in display area 10
Each original gray-scale value adjustment mode.That is: judge grayscale value for all first color sub-pixels of the mark grayscale value
The uniform value of brightness adjusted in the grayscale section using second adjustment mode, institute if the uniform value of brightness is not less than preset value
There is the original gray-scale value of the first color sub-pixels.
Second of adjustment mode specifically: for each display subregion 140, obtain the third region
Grayscale value is the second average brightness of all first color sub-pixels of the original gray-scale value in 142, and flat with described second
On the basis of equal brightness, all first color sub-pixels that grayscale value in the fourth region 144 is the original gray-scale value are adjusted
Grayscale value.I.e. for the grayscale section where mark grayscale value, when the uniform value of brightness is not less than preset value, by display area
10 are divided as shown in Figure 4.After division, by taking an original gray-scale value in the grayscale section as an example, a third region is obtained
Grayscale value is the average brightness of all first color sub-pixels of the original gray-scale value in 142, which is named as the
Two average brightness.Again on the basis of the second average brightness, adjusting grayscale value in the fourth region 144 is all of the original gray-scale value
The grayscale value of first color sub-pixels.
In subsequent steps S200 for example, for [97,192] grayscale section, the original ash that grayscale value is 150 is chosen
Rank value is as mark grayscale value.When grayscale value is not less than preset value for the uniform value of brightness of 150 all first color sub-pixels
When:
All first color sub-pixels for being 97 for original gray-scale value, adjustment mode: in all display subregions 140
A display subregion 140, obtain third region 142 in all original gray-scale values be 97 the first color sub-pixels it is bright
Degree, and acquire it and averagely obtain the second average brightness.On the basis of the second average brightness, to original gray-scale in the fourth region 144
Value carries out grayscale adjustment for 97 the first color sub-pixels, thus the first face for being 97 to original gray-scale value in the fourth region 144
Sub-pixels carry out luminance compensation.
Likewise, showing subregion 140 for others, the adjustment mode is also pressed, to first that original gray-scale value is 97
Color sub-pixels carry out brightness adjustment.
Likewise, all first color sub-pixels for being 98 for original gray-scale value, adjustment mode: to all display sub-districts
A display subregion 140 in domain 140 obtains the first color sub- picture that all original gray-scale values are 98 in third region 142
The brightness of element, and acquire it and averagely obtain the second average brightness.On the basis of the second average brightness, to former in the fourth region 144
The first color sub-pixels that beginning grayscale value is 98 carry out grayscale adjustment, to be 98 to original gray-scale value in the fourth region 144
First color sub-pixels carry out luminance compensation.
Likewise, showing subregion 140 for others, the adjustment mode is also pressed, to first that original gray-scale value is 98
Color sub-pixels carry out grayscale adjustment, to carry out brightness adjustment.
The first color sub-pixels corresponding for original gray-scale values all in [97,192] grayscale section, are performed both by above-mentioned tune
Perfect square formula.
It is to be appreciated that the essence of the adjustment mode of above-mentioned steps S300 ' are as follows: when the uniform value of brightness is not less than preset value
When, then display area 10 is divided into multiple display subregions 140, individual grayscale is carried out to each display subregion 140
Adjustment.Therefore, by above-mentioned display area 10 be divided into it is multiple display subregions 140 division modes be not limited merely to Fig. 4 this
It is a kind of.For example, in other embodiments, display area 10 can also be divided into 16 display subregions 140, and to each aobvious
Show that subregion 140 carries out the adjustment of grayscale documented by above-mentioned steps S300 '.It is all multiple aobvious by the way that display area 10 to be divided into
Show subregion 140, the brightness adjusting method for carrying out individual grayscale adjustment to each display subregion 140 should be understood as at this
Within the protection scope of embodiment.
Above-mentioned brightness adjusting method, when the uniform value of brightness of corresponding first color sub-pixels of the mark grayscale value is not low
When preset value, show in display area, the brightness homogeneity for indicating corresponding first color sub-pixels of grayscale value is preferable.
The grayscale adjustment mode of each original gray-scale value in grayscale section where the uniform value of brightness of the mark grayscale value determines it.
At this point, display area is divided into multiple display subregions.Each display subregion includes third region and encirclement third region
The fourth region.On the basis of the second average brightness in third region, the first color sub-pixels in the fourth region are carried out
The adjustment of grayscale and brightness can make in each display subregion the identical homochromy sub-pixel luminence of original gray-scale value more
It is close, increase the brightness homogeneity of each display subregion.In other words, for the monochrome sub-pixels of same original gray-scale value,
When its brightness uniformity is preferable, using each display subregion as adjustment region, original ash in each display subregion can be made
The identical homochromy sub-pixel luminence of rank value is more nearly.With this, may be implemented to it is each display subregion brightness homogeneity into
Row fine-tunes, to further promote the brightness homogeneity of display area.
The brightness adjusting method of the application selects different grayscale adjustment modes from two different situations, to reach
The purpose of luminance compensation.In two different situations, monochrome sub-pixels identical for original gray-scale value, if display area
It shows that homogeneity is poor, then grayscale adjustment is carried out by adjustment region of entire display area, to promote the display of display area
Homogeneity.If the display homogeneity of display area is preferable, individually to show that subregion carries out grayscale adjustment as adjustment region, from
And the display homogeneity of display area is promoted from details.
In one embodiment, as shown in fig. 6, after the step S100, further includes:
S410 obtains the original gray-scale value pair of first color sub-pixels for each first color sub-pixels
The practical light emission luminance answered.
Specifically, obtaining all first colors when each sub-pixel 112 in display area 10 shines and forms original image
After the original gray-scale value of sub-pixel, further includes: obtain every one first color sub-pixels corresponding reality under the original gray-scale value
Light emission luminance.That is, obtaining every one first color when each sub-pixel 112 in display area 10 shines and forms original image
The original gray-scale value of pixel, while the corresponding practical light emission luminance for obtaining the sub-pixel 112.
S420 obtains institute according to the original gray-scale value of first color sub-pixels and the practical light emission luminance
State the practical gamma curve of the first color sub-pixels.
Gamma curve is the homologous thread of grayscale value and light emission luminance.For each sub-pixel 112, it is original to obtain its
After grayscale value and the corresponding practical light emission luminance of original gray-scale value, it can be obtained according to the original gray-scale value and practical light emission luminance
The practical gamma curve of the sub-pixel 112.
Further, when the brightness adjusting method includes above-mentioned steps S410 and step S420, i.e., the described brightness tune
When section method has practical gamma curve according to the generation of every one first color sub-pixels, as shown in Figure 7:
" if the uniform value of the brightness is lower than preset value, being directed to every in the grayscale section in the step S300
One original gray-scale value: all first color sub-pixels that grayscale value in the first area 12 is the original gray-scale value are obtained
First average brightness " specifically includes:
The size relation of brightness uniform value and preset value in S310, judgment step S200, and work as the uniform value of the brightness
When lower than preset value, for each original gray-scale value in the grayscale section, following step is executed:
Display area is divided into first area and second area by S320, and division mode can be as shown in Figure 2.
S330 obtains the of all first color sub-pixels that grayscale value in the first area is the original gray-scale value
One average brightness.
Specifically, being found out in first area 12 after display area 10 is divided into first area 12 and second area 14, ash
Rank value is the average luminescence brightness of all first color sub-pixels of original gray-scale value.For example, for [97,192] grayscale section
For middle original gray-scale value is the first color sub-pixels of 97 grayscale, which is are as follows: finding out grayscale value in first area 12 is
The sum of the light emission luminance of 97 all first color sub-pixels, then with grayscale value be 97 all first color sub-pixels shine
The sum of brightness, divided by the quantity for all first color sub-pixels that grayscale value in the first area 12 is 97, can be obtained this
In one region 12, the average brightness for all first color sub-pixels that grayscale value is 97.This is stated into grayscale value in first area 12
Average brightness for all first color sub-pixels of the original gray-scale value is named as the first average brightness.
" on the basis of first average brightness, grayscale value in the second area 14 is adjusted in the step S300
For the grayscale value of all first color sub-pixels of the original gray-scale value " it specifically includes:
S340 obtains the practical gamma curve of each first color sub-pixels in the second area.
Specifically, bent according to the practical gamma of above-mentioned steps S410 and S420 you can get it every one first color sub-pixels
Line.The brightness adjusting method of the application is needed according to the practical gamma curve of every one first color sub-pixels to first color
Sub-pixel carries out grayscale adjustment.Therefore, it need to be obtained first when being adjusted to the original gray-scale value of every one first color sub-pixels
The practical gamma curve of first color sub-pixels.Subsequent steps S320 for example, obtains grayscale value in first area 12
It, can be according to first average brightness in second area 14 after the first average brightness for 97 all first color sub-pixels
The first color sub-pixels that grayscale value is 97 carry out grayscale adjustment.With an original gray-scale value in second area 14 is 97 the
For one color sub-pixels, the first color sub-pixels that the original gray-scale value in the second area 14 is 97 are named as the by us
One color sub-pixels should obtain the practical gamma curve of the first color sub-pixels first during adjustment.
S350 finds the first object grayscale value that first average brightness is corresponded on the practical gamma curve.
Specifically, it has been mentioned hereinbefore that the corresponding practical gamma curve of each first color sub-pixels is different.It is right
When first color sub-pixels are adjusted, that is, the practical gamma curve of the first color sub-pixels is obtained, and in the first color sub- picture
The first average brightness is found on the practical gamma curve of element.At this point, the first average brightness is the target of the first color sub-pixels
Brightness.First average brightness corresponding grayscale value on practical gamma curve is the target gray scale value of the first sub-pixel 112.It is right
The first average brightness is answered, which is named as first object grayscale value by us.
S360 adjusts the original gray-scale values of first color sub-pixels to first object grayscale value.
The original gray-scale value for adjusting the first color sub-pixels makes the first color sub-pixels the first mesh of grayscale value adjusted
Mark grayscale value.
Above-mentioned steps S320 to S350 only adjusts its grayscale by taking first color sub-pixels in second area 14 as an example
Process is illustrated.In fact, each first color sub-pixels in second area 14 should carry out above-mentioned adjustment process.
In yet another embodiment, when the brightness adjusting method includes above-mentioned steps S410 and step S420, i.e. institute
When stating brightness adjusting method has practical gamma curve according to the generation of every one first color sub-pixels, as shown in figure 8,
" if the uniform value of the brightness is not less than preset value, being directed in the grayscale section in the step S300 '
Each original gray-scale value: for each display subregion 140, obtaining grayscale value in the third region 142 is the original
Second average brightness of all first color sub-pixels of beginning grayscale value " specifically includes:
S310 ' judges the size relation of the brightness uniform value and preset value in the S200, and works as the uniform value of the brightness
When not less than preset value, for each original gray-scale value in the grayscale section, following step is executed:
Display area is divided into multiple display subregions, and is third by each display sub-zone dividing by S320 '
Region and the fourth region.Division mode can be as shown in Figure 4.
S330 ' obtains all first color sub-pixels that grayscale value in the third region is the original gray-scale value
Second average brightness.
Specifically, display area 10 is divided into multiple display subregions 140, and each display subregion 140 is divided
It behind third region 142 and the fourth region 144, finds out in third region 142, grayscale value is all first face of original gray-scale value
The average luminescence brightness of sub-pixels.It is illustrated below with each display subregion 140, for example, for [97,
192] for original gray-scale value is the first color sub-pixels of 97 grayscale in grayscale section, which is are as follows: finds out third region
The sum of the light emission luminance for all first color sub-pixels that grayscale value is 97 in 142, then all first face for being 97 with grayscale value
The sum of light emission luminance of sub-pixels, divided by the number for all first color sub-pixels that grayscale value in the third region 142 is 97
Amount, can be obtained in the third region 142, the average brightness for all first color sub-pixels that grayscale value is 97.This is stated
Grayscale value is named as second for the average brightness of all first color sub-pixels of the original gray-scale value and is averaged in three regions 142
Brightness.
" on the basis of second average brightness, grayscale in the fourth region 144 is adjusted in the step S300 '
Value is the grayscale value of all first color sub-pixels of the original gray-scale value " it specifically includes:
S340 ' obtains each first color sub-pixels in the fourth region for each the fourth region
Practical gamma curve.
Specifically, for one the fourth region 144 of every meaning, according to you can get it the 4th area above-mentioned steps S410 and S420
The practical gamma curve of every one first color sub-pixels in domain 144.The brightness adjusting method of the application is needed according to every one first
The practical gamma curve of color sub-pixels carries out grayscale adjustment to first color sub-pixels.Therefore, to every one first color
The original gray-scale value of pixel need to obtain the practical gamma curve of first color sub-pixels first when being adjusted.Subsequent steps
S320 ' for example, obtains the second average brightness of all first color sub-pixels that grayscale value is 97 in third region 142
Afterwards, grey contrast can be carried out to the first color sub-pixels that grayscale value in the fourth region 144 is 97 according to second average brightness
It is whole.For the first color sub-pixels for being 97 with an original gray-scale value in the fourth region 144, we are by the fourth region
The first color sub-pixels that original gray-scale value in 144 is 97 are named as the two the first color sub-pixels, and head is answered during adjustment
First obtain the practical gamma curve of the two the first color sub-pixels.
S350 ' finds the second target gray scale value that second average brightness is corresponded on the practical gamma curve.
Specifically, it has been mentioned hereinbefore that the corresponding practical gamma curve of each first color sub-pixels is different.It is right
When the two the first color sub-pixels are adjusted, that is, the practical gamma curve of the two the first color sub-pixels is obtained, and second
The second average brightness is found on the practical gamma curve of first color sub-pixels.At this point, the second average brightness is the two the first
The object brightness of color sub-pixels.Second average brightness corresponding grayscale value on practical gamma curve is the second sub-pixel
112 target gray scale value.Corresponding second average brightness, which is named as the second target gray scale value by us.
S360 ' adjusts the original gray-scale values of first color sub-pixels to the second target gray scale value.
The original gray-scale value for adjusting the two the first color sub-pixels makes the two the first color sub-pixels grayscale values adjusted
For the second target gray scale value.
Above-mentioned steps S320 ' to S350 ' is only by taking first color sub-pixels in a fourth region 144 as an example to it
Grayscale adjustment process is illustrated.In fact, each first color sub-pixels in each the fourth region 144 should carry out
State adjustment process.
In one embodiment, as shown in figure 9, the step S200 includes:
S210 selects an original gray-scale value as mark grayscale value from the grayscale section.
Specifically, after dividing grayscale section, each grayscale section all includes at least one original gray-scale in step S100
Value.For each grayscale section, from one original gray-scale value of the grayscale interval selection as mark grayscale value.For example,
It, can be from [0,96] ash after the original gray-scale value is divided into [0,96], [97,192] and [193,255] three grayscale sections
0 grayscale is chosen in rank section as mark grayscale value；150 grayscale are chosen out of [97,192] grayscale section as mark grayscale
Value；255 grayscale are chosen out of [193,255] grayscale section as mark grayscale value.
The display area is divided into multiple display subregions by S220.
Specifically, the display area 10 is divided into multiple display subregions 140, consequently facilitating finding out display area 10
Interior grayscale value is the uniform value of brightness for indicating all first color sub-pixels of grayscale value.The size of multiple display subregions 140
It can be equal or differs.Display area 10 is divided into multiple display subregions 140, division mode can be such as Figure 10 institute
Show, i.e., the display area 10 is divided into 9 display subregions 140；Its division mode can also be as shown in figure 11, i.e., by institute
It states display area 10 and is divided into 16 display subregions 140.Here without limitation.
It should be noted that reduce the calculation amount of brightness adjusting method, it is in general, " more in the step S220
As the division methods of a display subregion 140 " with the division methods of " display subregion 140 " in the step S300 ' are
, i.e. display subregion 140 in two steps is identical.In other embodiments, subregion is shown in two different steps
140 division methods can also be different.
S230 is obtained in each display subregion, and grayscale value is all first colors of the mark grayscale value
The average luminescence brightness of pixel.
After display area 10 is divided into multiple display subregions 140, find out in each display subregion 140, grayscale
Value is the average luminescence brightness of all first color sub-pixels of mark grayscale value.For example, for [97,192] grayscale section, i.e.,
The original gray-scale value that grayscale value is 150 can be chosen and be used as mark grayscale value.Assuming that display area 10 is divided into 9 in step S220
A equal-sized display subregion 140, at this point, in each display subregion 140, find out grayscale value be 150 it is all
The sum of the light emission luminance of first color sub-pixels.Again with grayscale value be 150 all first color sub-pixels light emission luminance it
With, divided by grayscale value in the display subregion 140 be 150 all first color sub-pixels quantity, the display can be obtained
In subregion 140, the average luminescence brightness for all first color sub-pixels that grayscale value is 150.In this approach, it calculates and acquires 9
In a display subregion 140, the average luminescence brightness for all first color sub-pixels that grayscale value is 150 obtains 9 average hairs
Brightness.
S240 obtains the minimum and peak of the average luminescence brightness in all display subregions, described bright
Spend the ratio of minimum and peak that uniform value is the average luminescence brightness.
Specifically, finding out the minimum of average luminescence brightness after finding out the average luminescence brightness of all display subregions 140
And peak, the uniform value of brightness can be obtained divided by peak with minimum.Citing in subsequent steps S230, when acquisition 9
After the average luminescence brightness of each for showing subregion 140, with the minimum in 9 average luminescence brightness divided by peak,
The uniform value of brightness of the display area 10 can be obtained.Certainly, the uniform value of brightness here is also referred to as a grayscale area
Interior mark grayscale value, the uniform value of brightness of all first color sub-pixels.
Low ash rank is generally referred to as 0-32 grayscale section, due to the display unevenness difference between each grayscale in low ash rank section compared with
Greatly, therefore the original gray-scale value for the original gray-scale value in 0 to 32 low ash order ranges, it can choose the first adjusting side
Formula or second of regulative mode, i.e., on the basis of the first average brightness, adjusting grayscale value in second area is original gray-scale value
All first color sub-pixels grayscale value；Or on the basis of the second average brightness, adjusting grayscale value in the fourth region is original
The grayscale value of all first color sub-pixels of beginning grayscale value.
In one embodiment, the preset value is 80%.I.e. for the mark grayscale value in grayscale section, it is somebody's turn to do when corresponding
When indicating the uniform value of the brightness of all first color sub-pixels of grayscale value lower than 80%, using described in above-mentioned steps S300
Each original gray-scale value in the grayscale section is adjusted in adjustment mode.When all first face of the corresponding mark grayscale value
When the uniform value of the brightness of sub-pixels is not less than 80%, using adjustment mode described in above-mentioned steps S300 ' to the grayscale area
Interior each original gray-scale value is adjusted.
The brightness adjusting method of the application is explained from a specific embodiment below, in the specific reality
It applies in example, the first color sub-pixels grayscale value range is 0 to 255 grayscale when display area 10 shines.The brightness adjusting method packet
It includes:
The original gray-scale value and original gray-scale value for obtaining all first color sub-pixels in the display area 10 are corresponding
Practical light emission luminance, and according to the original gray-scale value of every one first color sub-pixels and practical light emission luminance, obtain first face
The practical gamma curve of sub-pixels.The original gray-scale value range is 0 to 255, i.e., [0,255].
By the original gray-scale value be divided into 0 to 31,32 to 63,64 to 95,96 to 127,128 to 191,192 to 223 and
224 to 255 seven grayscale sections.I.e. by the original gray-scale value be divided into [0,31], [32,63], [64,95], [96,127],
[128,191], [192,223] and [224,255] seven grayscale sections.
For [32,63] grayscale section, grayscale value is selected to be used as mark grayscale value for 32 original gray-scale value.At this point, will
Display area 10 is divided into 9 display subregions 140.Subregion 140 is shown for each, finds out the display subregion 140
The average luminescence brightness for the first color sub-pixels that interior all original gray-scale values are 32.Assuming that being put down in 9 display subregions 140
The minimum of equal light emission luminance is a, peak b, then at this point, the brightness for all first color sub-pixels that grayscale value is 32 is equal
One value is a/b.Assuming that uniform value a/b < preset value=80% of brightness, then be divided into first area 12 and second for display area 10
Region 14.At this point, the sub-pixel 112 for being 32 for original gray-scale value, finding out all original gray-scale values in first area 12 is 32
Sub-pixel 112 average luminescence brightness.In second area 14, the sub-pixel 112 for being 32 for each original gray-scale value: look for
To the average luminescence brightness on the practical gamma curve of the sub-pixel 112 corresponding grayscale value, using the grayscale value as target ash
Rank value adjusts the original gray-scale value of the sub-pixel 112.The first color for being 33,3463 for grayscale value
Pixel is also adjusted in this way respectively.
For [64,95] grayscale section, grayscale value is selected to be used as mark grayscale value for 64 original gray-scale value.At this point, will
Display area 10 is divided into 9 display subregions 140.Subregion 140 is shown for each, finds out the display subregion 140
The average luminescence brightness for the first color sub-pixels that interior all original gray-scale values are 64.Assuming that being put down in 9 display subregions 140
The minimum of equal light emission luminance is c, peak d, then at this point, the brightness for all first color sub-pixels that grayscale value is 64 is equal
One value is c/d.Assuming that uniform value c/d > preset value=80% of brightness, then be divided into multiple display subregions for display area 10
140, and each display subregion 140 is divided into third region 142 and the fourth region 144.At this point, to each display subregion
For 140, the sub-pixel 112 for being 64 for original gray-scale value finds out the son that all original gray-scale values are 64 in third region 142
The average luminescence brightness of pixel 112.In the fourth region 144, the sub-pixel 112 for being 64 for each original gray-scale value: find
The average luminescence brightness corresponding grayscale value on the practical gamma curve of the sub-pixel 112, using the grayscale value as target gray scale
Value, adjusts the original gray-scale value of the sub-pixel 112.Other display subregions 140 are also adjusted by the program.For grayscale
The first color sub-pixels that value is 65,6695, are also adjusted in this way respectively.
It should be noted that, since grayscale is relatively low, can choose a significant ash for [0,31] grayscale section
Rank, such as 0 grayscale are significant grayscale, and display area 10 is divided into 9 display subregions 140.For each display
Region 140 finds out the average luminescence brightness for the first color sub-pixels that all original gray-scale values are 0 in the display subregion 140,
The uniform value of brightness for all first color sub-pixels for being 0 according to grayscale value selects brightness adjusting method.It can also be by user's root
Select the first grayscale adjustment mode or second of adjustment mode to the first color in correspondence [0,31] grayscale section according to demand
Pixel carries out grayscale adjustment.
Wherein, the first adjustment mode is are as follows: display area 10 is divided into first area 12 and second area 14, for
For each original gray-scale value in [0,31] grayscale section, finds out and correspond to the of original gray-scale value to be adjusted in first area 12
The average luminescence brightness of one color sub-pixels.In second area 14, it is to be adjusted original in correspondence to find the average luminescence brightness
Corresponding target gray scale value on the practical gamma curve of first color sub-pixels of grayscale value, thus using the first average brightness as base
Standard adjusts the grayscale value for all first color sub-pixels that grayscale value in second area 14 is original gray-scale value.For the secondth area
Grayscale value is the first color sub-pixels of original gray-scale value in domain 14, and grayscale value adjusted should be target gray scale value.
Second of adjustment mode be are as follows: display area 10 is divided into multiple display subregions 140, and by each display
Region 140 is divided into third region 142 and the fourth region 144.At this point, being individually adjusted for each display subregion 140.
For each original gray-scale value in [0,31] grayscale section, finds out and correspond to original gray-scale to be adjusted in third region 142
The average luminescence brightness of first color sub-pixels of value.In the fourth region 144, the average luminescence brightness is found corresponding wait adjust
Corresponding target gray scale value on the practical gamma curve of first color sub-pixels of whole original gray-scale value, thus average bright with second
On the basis of degree, the grayscale value for all first color sub-pixels that grayscale value in the fourth region 144 is original gray-scale value is adjusted.For
Grayscale value is the first color sub-pixels of original gray-scale value in the fourth region 144, and grayscale value adjusted should be target gray scale
Value.
Original gray-scale value is being divided into seven grayscale sections, it should be appreciated that in reality by above-mentioned brightness adjusting method
In application process, the division in grayscale section is not limited to the above embodiments.Grayscale section can using etc. divide model split, can also be with
By the way of non-equal part, for example, when the corresponding sub-pixel of the original gray-scale value in a certain grey-scale range needs to fine-tune,
Then the original gray-scale value in the grey-scale range can mostly be divided into several grayscale sections.For example, in a upper embodiment, if
When tester has found that the luminance compensation effect in [32,63] grayscale section is poor, can be by [32,63] grayscale interval division
[32,42], [43,53] and [54,63] three grayscale sections, to be fine-tuned to it.
The application also provides a kind of display device, the display area 10 constituted including multiple sub-pixels 112.The viewing area
Domain 10 includes first area 12 and the second area 14 for surrounding the first area 12.The multiple sub-pixel 112 includes multiple
First color sub-pixels, multiple green sub-pixels and multiple blue subpixels.
The display device further includes grayscale division module, the first computing module, judgment module, the second computing module and tune
Mould preparation block.
Specifically, the grayscale division module, for obtaining all first color sub-pixels in the display area 10
Original gray-scale value, and the original gray-scale value of all first color sub-pixels is divided at least one grayscale section；
First computing module is used for from one original gray-scale value of each grayscale interval selection as mark grayscale
Value, and calculate in the display area 10, grayscale value is that the brightness of all first color sub-pixels of the mark grayscale value is equal
One value；
The judgment module is used to judge the size relation of the brightness uniform value and preset value；
Second computing module is used for when the uniform value of the brightness is lower than preset value, in the grayscale section
Each original gray-scale value obtains all first color sub-pixels that grayscale value in the first area 12 is the original gray-scale value
The first average brightness；
The adjustment module is used on the basis of first average brightness, and adjusting grayscale value in the second area 14 is
The grayscale value of all first color sub-pixels of the original gray-scale value.
Each technical characteristic of embodiment described above can carry out the combination of every meaning, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of brightness adjusting method carries out brightness adjustment for the original image to display area, the display area has
Multiple sub-pixels, the display area include first area and the second area for surrounding the first area, which is characterized in that packet
It includes:
Obtain the original gray-scale value of all first color sub-pixels in the display area, and by all first color sub- pictures
The original gray-scale value of element is divided at least one grayscale section；For each grayscale section:
From one original gray-scale value of the grayscale interval selection as mark grayscale value, judge in the display area, grayscale value
For the uniform value of brightness of all first color sub-pixels of the mark grayscale value；
If the uniform value of brightness is lower than preset value, for each original gray-scale value in the grayscale section:
Obtain all first color sub-pixels that grayscale value in the first area is the original gray-scale value first is average bright
Degree, and on the basis of first average brightness, adjusting grayscale value in the second area is all of the original gray-scale value
The grayscale value of first color sub-pixels is with compensation brightness.
2. brightness adjusting method according to claim 1, which is characterized in that described to obtain all the in the display area
After the original gray-scale value of one color sub-pixels, further includes:
For each first color sub-pixels, the corresponding reality of the original gray-scale value of first color sub-pixels is obtained
Border light emission luminance；
According to the original gray-scale value of first color sub-pixels and the practical light emission luminance, first color is obtained
The practical gamma curve of sub-pixel.
3. brightness adjusting method according to claim 1 or 2, which is characterized in that described from the grayscale interval selection one
A original gray-scale value judges in the display area as mark grayscale value, and grayscale value is all the of the mark grayscale value
The uniform value of the brightness of one color sub-pixels, comprising:
Select an original gray-scale value as mark grayscale value from the grayscale section；
The display area is divided into multiple display subregions；
It obtains in each display subregion, grayscale value is being averaged for all first color sub-pixels of the mark grayscale value
Light emission luminance；
The minimum and peak of the average luminescence brightness in all display subregions are obtained, the uniform value of brightness is
The minimum of the average luminescence brightness and the ratio of peak.
4. brightness adjusting method according to claim 3, which is characterized in that described using first average brightness as base
Standard adjusts the grayscale value for all first color sub-pixels that grayscale value in the second area is the original gray-scale value, comprising:
Obtain the practical gamma curve of each first color sub-pixels in the second area；
Find the first object grayscale value that first average brightness is corresponded on the practical gamma curve；
The original gray-scale values of first color sub-pixels is adjusted to first object grayscale value.
5. brightness adjusting method according to claim 3, which is characterized in that the display subregion include third region and
Surround the fourth region in the third region；In the judgement display area, grayscale value is the institute for indicating grayscale value
After having a uniform value of the brightness of the first color sub-pixels, further includes:
If the uniform value of brightness is not less than preset value, for each original gray-scale value in the grayscale section:
For each display subregion, obtaining grayscale value in the third region is all the first of the original gray-scale value
Second average brightness of color sub-pixels, and on the basis of second average brightness, adjust grayscale value in the fourth region
For the original gray-scale value all first color sub-pixels grayscale value with compensation brightness.
6. brightness adjusting method according to claim 5, which is characterized in that described using second average brightness as base
Standard adjusts the grayscale value for all first color sub-pixels that grayscale value in the fourth region is the original gray-scale value, comprising:
For each the fourth region, the practical gamma for obtaining each first color sub-pixels in the fourth region is bent
Line；
Find the second target gray scale value that second average brightness is corresponded on the practical gamma curve；
The original gray-scale values of first color sub-pixels is adjusted to the second target gray scale value.
7. brightness adjusting method according to claim 5, which is characterized in that described to obtain all the in the display area
The original gray-scale value of one color sub-pixels, and the original gray-scale value of all first color sub-pixels is divided at least one
Grayscale section, comprising:
Obtain the original gray-scale value of all first color sub-pixels in the display area；
The original gray-scale value is divided into the grayscale section of multiple equal parts.
8. brightness adjusting method according to claim 5, which is characterized in that
For original gray-scale value of the original gray-scale value in 0 to 32 low ash order ranges, using first average brightness as base
Standard adjusts the grayscale value for all first color sub-pixels that grayscale value in the second area is the original gray-scale value；Or
On the basis of second average brightness, all that grayscale value in the fourth region is the original gray-scale value are adjusted
The grayscale value of one color sub-pixels.
9. brightness adjusting method according to claim 1, which is characterized in that the preset value is 80%.
10. a kind of display device, including the display area that multiple sub-pixels are constituted, the display area includes first area and packet
The second area of the first area is enclosed, the multiple sub-pixel includes multiple first color sub-pixels, which is characterized in that is also wrapped
It includes:
Grayscale division module, for obtaining the original gray-scale value of all first color sub-pixels in the display area, and by institute
The original gray-scale value for stating all first color sub-pixels is divided at least one grayscale section；
First computing module for being used as mark grayscale value from one original gray-scale value of each grayscale interval selection, and is counted
It calculates in the display area, grayscale value is the uniform value of brightness of all first color sub-pixels of the mark grayscale value；
Judgment module, for judging the size relation of the brightness uniform value and preset value；
Second computing module is used for when the uniform value of the brightness is lower than preset value, for each original in the grayscale section
Beginning grayscale value, obtain all first color sub-pixels that grayscale value in the first area is the original gray-scale value first are flat
Equal brightness；
Module is adjusted, is described original on the basis of first average brightness, adjusting grayscale value in the second area
The grayscale value of all first color sub-pixels of grayscale value, so as to adjust the first color sub-pixels all in the second area
Brightness.
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| CN111223434A (en) * | 2020-01-19 | 2020-06-02 | 昆山国显光电有限公司 | Display panel color cast compensation method, compensation device and display device |
| CN111816113A (en) * | 2020-07-29 | 2020-10-23 | 昆山工研院新型平板显示技术中心有限公司 | Brightness compensation method, device and equipment of display panel |
| CN111933082A (en) * | 2020-09-03 | 2020-11-13 | 京东方科技集团股份有限公司 | Method for improving low gray scale image quality and display device |
| CN112185296A (en) * | 2020-10-16 | 2021-01-05 | Tcl华星光电技术有限公司 | Display panel brightness adjusting method and device |
| CN112967669A (en) * | 2021-03-02 | 2021-06-15 | 长春希达电子技术有限公司 | Correction method for improving gray scale consistency of LED display screen |
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