CN107393489A - It is a kind of to eliminate the uneven Dynamic Sampling Method of panel luminance - Google Patents
It is a kind of to eliminate the uneven Dynamic Sampling Method of panel luminance Download PDFInfo
- Publication number
- CN107393489A CN107393489A CN201710791759.XA CN201710791759A CN107393489A CN 107393489 A CN107393489 A CN 107393489A CN 201710791759 A CN201710791759 A CN 201710791759A CN 107393489 A CN107393489 A CN 107393489A
- Authority
- CN
- China
- Prior art keywords
- right angle
- value
- brightness value
- difference
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- 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
Abstract
The application provides a kind of Dynamic Sampling Method for eliminating panel luminance inequality, its luminance data difference by detecting adjacent right angle electrical, if luminance data difference is excessive, dynamically increases sample point quantity, accomplishes the uneven fine compensation of panel luminance.In addition, the application is when the boundary point of panel luminance inequality is finally navigated to, the sampled data for cancelling other points can be set, compensation calculation only is carried out to border point, amount of calculation and final memory data output can be further reduced, the adaptive condition of panel luminance inequality mechanism counter plate is eliminated to improve the compensation ability of counter plate brightness disproportionation and lifting.
Description
Technical field
The application is related to technical field of liquid crystal display, more particularly to a kind of Dynamic sampling side for eliminating panel luminance inequality
Method.
Background technology
For liquid crystal panel due to complex manufacturing, management and control difficulty is big, and it is (bright that mura phenomenons are easily caused during production
Spend uneven）, there is bright spot or dim spot, i.e., some region of panel is due to the vestige of block shape caused by the difference of display brightness
Phenomenon, reduce the credit rating of panel.In the last few years, as the popularization of 4K, 2K TV, panel luminance uneven phenomenon are more and more tighter
Weight, eliminate uneven (Demura) technology of panel luminance and just arise at the historic moment, current this technology is adopted to reduce the data quantity of compensation
The scheme of one minimum compensatory zone of setting, such as the rectangular area of currently used 8*8=64 pixel (pixel) are taken as most
Small compensatory zone, datum mark of 4 right angle electricals of this rectangle as compensation is only taken, other regions of rectangle are all with this 4
Algorithm computing is done on the basis of point to obtain, such internal memory only needs to preserve the data of 4 pixel l points.Can be due to that panel is bright
It is changeable to spend uneven complex, then the scheme of current fixation sample point is directed to the compensation effect of particular panel brightness disproportionation
Will be very poor, for example panel luminance inequality region is smaller, just in this region of 8X8, or the border that panel luminance is uneven
Line just occurs that compensation effect is very poor not on sample point, or even basic without improved situation.
The content of the invention
The application technical problems to be solved are to provide a kind of Dynamic Sampling Method for eliminating panel luminance inequality, so as to
Sample point quantity can be dynamically increased, accomplishes the uneven fine compensation of panel luminance.
In order to solve the above technical problems, the embodiment of the present application provides following technical scheme first：One kind eliminates panel luminance
Uneven Dynamic Sampling Method, including：
Counter plate is shot, and obtains the brightness value of four right angle electricals of multiple first rectangular areas of the panel；
Obtain the brightness value of the multiple right angle electrical and carry out the difference of the brightness value of two right angle electricals adjacent to each other on a direction
Calculate, to obtain multiple difference values；
Judge whether the multiple difference value is more than a standard value, if any the multiple difference value is more than the standard value,
The brightness value of four right angle electricals of multiple second rectangular areas of the panel is obtained, wherein the multiple second rectangular area
Area is less than the area of the multiple first rectangular area；
Again two right angle electricals adjacent to each other on the direction are carried out for the brightness value of four right angle electricals of the second rectangular area
The difference of brightness value calculates, and to obtain the multiple difference value, judges whether the multiple difference value is more than the standard value, if
Any the multiple difference value then obtains the rectangular area of multiple more small areas of the panel again still greater than the standard value
The brightness value of four right angle electricals and brightness value again for four right angle electricals of the rectangular area of the multiple more small area enters
The difference of the brightness value of two right angle electricals adjacent to each other is calculated to obtain newest multiple difference values on the row direction, judges institute
State whether newest multiple difference values are more than the standard value, until judging that newest multiple difference values are respectively less than or are equal to
The standard value；
When newest multiple difference values are respectively less than or during equal to the standard value, then newest multiple difference values are judged
In larger two difference values, the relatively low right angle electrical of brightness value corresponding to two difference value is obtained, to obtain in the direction
Two boundary points of the brightness disproportionation of the upper panel.
Alternatively, the multiple first rectangular area is 8*8 pixel.
Alternatively, the multiple second rectangular area is 4*4 pixel.
Alternatively, the rectangular area of the multiple more small area is 2*2 pixel or 1*1 pixel.
Alternatively, the minimum area of the rectangular area is 1*1 pixel.
Alternatively, luminance compensation calculating further is carried out to two boundary point.
Alternatively, the direction is horizontal direction.
Alternatively, the direction is vertical direction.
Alternatively, methods described further comprises the brightness for when obtaining two boundary point, then deleting remaining right angle electrical
Value.
On the other hand, the embodiment of the present application also provides a kind of Dynamic Sampling Method for eliminating panel luminance inequality, including：
Counter plate is shot, and obtains the brightness value of four right angle electricals of multiple first rectangular areas of the panel；
Obtain the brightness value of the multiple right angle electrical and carry out the difference of the brightness value of two right angle electricals adjacent to each other on a direction
Calculate, to obtain multiple difference values；
Judge whether the multiple difference value is more than a standard value, if any the multiple difference value is more than the standard value,
The brightness value of four right angle electricals of multiple second rectangular areas of the panel is obtained, wherein the multiple second rectangular area
Area is less than the area of the multiple first rectangular area；
Again two right angle electricals adjacent to each other on the direction are carried out for the brightness value of four right angle electricals of the second rectangular area
The difference of brightness value calculates, and to obtain the multiple difference value, judges whether the multiple difference value is more than the standard value, if
Any the multiple difference value then obtains the rectangular area of multiple more small areas of the panel again still greater than the standard value
The brightness value of four right angle electricals and brightness value again for four right angle electricals of the rectangular area of the multiple more small area enters
The difference of the brightness value of two right angle electricals adjacent to each other is calculated to obtain newest multiple difference values on the row direction, judges institute
State whether newest multiple difference values are more than the standard value, until judging that newest multiple difference values are respectively less than or are equal to
The standard value；
When newest multiple difference values are respectively less than or during equal to the standard value, then newest multiple difference values are judged
In larger two difference values, the relatively low right angle electrical of brightness value corresponding to two difference value is obtained, to obtain in the direction
Two boundary points of the brightness disproportionation of the upper panel；
The calculating of data is compensated to two boundary point.
By using above-mentioned technical proposal, the application at least has the advantages that：It is (straight by detecting adjacent samples point
Angle point) luminance data difference, if luminance data difference is excessive, dynamically increases sample point quantity, accomplish panel
The fine compensation and lifting of brightness disproportionation eliminate the adaptive condition of panel luminance inequality mechanism counter plate.In addition, the application is in most
When navigating to panel luminance inequality boundary point eventually, the sampled data for cancelling other points can be set, only border point is compensated
Calculating, it can further reduce amount of calculation and final memory data output.
Brief description of the drawings
It is required in being described below to embodiment to use in order to illustrate more clearly of the embodiment of the present application technical scheme
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present application, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is to eliminate the uneven sampling theorem schematic diagram of panel luminance at present.
It is 8* that Fig. 2, which is that a kind of acquirement for the Dynamic Sampling Method for eliminating panel luminance inequality is multiple in the embodiment of the application one,
The schematic diagram of four right angle electricals of the rectangular area of 8 pixels.
It is 4* that Fig. 3, which is that a kind of acquirement for the Dynamic Sampling Method for eliminating panel luminance inequality is multiple in the embodiment of the application one,
The schematic diagram of four right angle electricals of the rectangular area of 4 pixels.
Fig. 4 is in the schematic diagram for taking a right angle electrical in horizontal direction with 2, interval pixel in the embodiment of the application one.
Fig. 5 is that the two boundary point schematic diagrames that panel luminance is uneven in the horizontal direction are obtained in the embodiment of the application one.
The step of Fig. 6 is the Dynamic Sampling Method of a kind of elimination panel luminance inequality in the embodiment of the application one is schemed.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes.Obviously, described embodiment is some embodiments of the present application, rather than whole embodiments.Based on this Shen
Please in embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belong to the scope of the application protection.
It should be appreciated that ought be in this specification and in the appended claims in use, term " comprising " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but it is not precluded from one or more of the other feature, whole
Body, step, operation, element, component and/or its presence or addition for gathering.
As shown in figure 1, it is the current sampling theorem for eliminating panel luminance inequality, with UD resolution ratio（3840 *2160）Face
Plate is illustrated, and current minimum compensating unit is 8*8 pixel (pixel), i.e., horizontally and vertically on be all to be spaced 8
Pixel takes a compensation point, and the offset data of middle each pixel is obtained on the basis of this compensation point, then by linear operation.This
The defects of sample is done is difficult to be compensated well it is obvious that be exactly when panel brightness disproportionation is not when on sample point, special
It is not that the panel luminance inequality compensation effect obvious to boundary line will be worse.
It is 8* that Fig. 2, which is that a kind of acquirement for the Dynamic Sampling Method for eliminating panel luminance inequality is multiple in the embodiment of the application one,
The schematic diagram of four right angle electricals of the rectangular area of 8 pixels；Fig. 3 is that one kind eliminates panel luminance not in the embodiment of the application one
The schematic diagram of four right angle electricals of the multiple rectangular areas for 4*4 pixel of acquirement of equal Dynamic Sampling Method；Fig. 4 is this Shen
Please be in an embodiment in the schematic diagram for taking a right angle electrical in horizontal direction with 2, interval pixel；Fig. 5 is the embodiment of the application one
It is middle to obtain the two boundary point schematic diagrames that panel luminance is uneven in the horizontal direction；Fig. 6 is a kind of in the embodiment of the application one eliminates
The step of Dynamic Sampling Method of panel luminance inequality, schemes.
Fig. 2 to Fig. 6 is refer to, a kind of uneven Dynamic Sampling Method of elimination panel luminance that the embodiment of the present application provides,
This method comprises the following steps：
Step S1, counter plate is shot, and obtains four right angle electricals of multiple first rectangular areas of panel, such as：Institute in Fig. 2
P1, P8, P16, N1, N8, N16 for showing brightness value.
In the embodiment of the present application, can be camera for the luminance acquisition device that counter plate is shot, first square
Shape region can be the rectangular area of 8*8 pixel, the right angle electrical P1 that luminance acquisition device obtains brightness value be 200nits,
Right angle electrical P8 brightness value is 50nits, right angle electrical P16 brightness value is 200nits, right angle electrical N1 brightness value is
200nits, right angle electrical N8 brightness value are 50nits, right angle electrical N16 brightness value is 200nits.
Step S2, the multiple right angle electrical is obtained（Such as P1, P8, P16, N1, N8, N16 shown in Fig. 2）Brightness value
Two right angle electricals (P1 and P8) adjacent to each other, the difference of brightness value of (P16 and P8) calculate upwards for water-filling square of going forward side by side, to obtain
Multiple difference values.
In the embodiment of the present application, be by computer come carry out in horizontal direction two right angle electricals adjacent to each other (P1 with
P8), the difference of the brightness value of (P16 and P8) calculates, and to obtain this two right angle electricals P1 with P8 difference values as 150 nits, another two is straight
Angle point P16 and P8 difference values are 150 nits.
Step S3, judge whether the multiple difference value is more than standard value.
In the embodiment of the present application, standard value may be set to 110 nits, therefore computer can determine whether the multiple difference value
Whether (right angle electrical P1 and the difference of right angle electrical P8 brightness value, right angle electrical P16 and right angle electrical P8 brightness value difference) is more than
The nits of standard value 110.
If step S4, any the multiple difference value is more than standard value, computer control luminance acquisition device obtains panel
Multiple more small areas (such as：4*4 pixel) rectangular area four right angle electricals（Such as P1, P4 shown in Fig. 3, P8,
P12, P16 etc.）Brightness value.
In the embodiment of the present application, difference, right angle electrical P16 and the right angle electrical P8 of right angle electrical P1 and right angle electrical P8 brightness value
The difference of brightness value be all more than the nits of standard value 110, therefore computer control luminance acquisition device obtains the multiple smaller of panel
Four right angle electricals P1, P4, P8, P12, P16 of rectangular area of area (4*4 pixel) etc. brightness value (as shown in Figure 3), and
The brightness value for the right angle electrical P1 that luminance acquisition device obtains is 200nits, right angle electrical P8 brightness value is 50nits, right angle electrical
P16 brightness value is 200nits, right angle electrical P4 brightness value is 50nits, right angle electrical P12 brightness value is 200nits.
Repeat step S2, carry out two right angle electricals (P1 and P4) adjacent to each other in horizontal direction, (P4 and P8), (P8 with
P12), the difference of the brightness value of (P12 and P16) calculates, to obtain this two right angle electricals P1 with P4 difference values as 150 nits, two
Right angle electrical P4 is 0 nits with P8 difference values, and two right angle electrical P8 and P12 difference values are 150 nits, and two right angle electrical P12 and P16 are poor
Different value is 0 nits.
Repeat step S3, judge the multiple difference value (brightness value of the difference of P1 and P4 brightness value, P4 and P8
The difference of the brightness value of the difference of the brightness value of difference, P8 and P12, P12 and P16) whether it is more than the nits of standard value 110.
Difference, the right angle electrical P8 for repeating step S4, right angle electrical P1 and right angle electrical P4 brightness value are bright with right angle electrical P12's
The difference of angle value is all more than the nits of standard value 110, therefore obtains the rectangle of multiple more small areas (2*2 pixel) of panel again
(Fig. 4 is only illustrated in horizontal direction to four right angle electricals P1, P2, P4, P6, P8, P10, P12, P14, the P16 in region etc. brightness value
On a right angle electrical taken with 2, interval pixel), and the brightness value for the right angle electrical P1 that luminance acquisition device obtains be 200nits, it is straight
Angle point P8 brightness value is 50nits, right angle electrical P16 brightness value is 200nits, right angle electrical P4 brightness value is 50nits, straight
Angle point P12 brightness value is 200nits, right angle electrical P2 brightness value is 100nits, right angle electrical P6 brightness value be 50nits,
Right angle electrical P10 brightness value is 100nits, right angle electrical P14 brightness value is 200nits.
Repeat step S3, judge the multiple difference value (difference of right angle electrical P1 and right angle electrical P2 brightness value, right angle
Difference, right angle electrical P6 and the right angle of the difference of point P2 and right angle electrical P4 brightness value, right angle electrical P4 and right angle electrical P6 brightness value
The difference of point P8 brightness value, the difference of right angle electrical P8 and right angle electrical P10 brightness value, right angle electrical P10 are bright with right angle electrical P12's
The difference of angle value, the right angle electrical P12 and right angle electrical P14 difference of brightness value, right angle electrical P14 and right angle electrical P16 brightness value
Difference) whether it is more than the nits of standard value 110.
If step S5, the multiple difference value is smaller than the nits of standard value 110, judge larger in multiple difference values
Two difference values, the relatively low right angle electrical P2 and P10 of brightness value corresponding to two difference values is obtained, to obtain top panel in the horizontal direction
Brightness disproportionation two boundary point P2 and P10.
In the embodiment of the present application, when all differences value is smaller than 110 nits of standard value, multiple difference values (two are judged
Right angle electrical P1 is 100 nits with P2 difference values, and two right angle electrical P2 are 50 nits, two right angle electrical P4 and P6 differences with P4 difference values
It is worth for 0nits, two right angle electrical P6 and P8 difference values be 0nits, and two right angle electrical P8 and P10 difference values are 50nits, two right angle electricals
P10 is 100nits with P12 difference values, and two right angle electrical P12 are 0 nits, two right angle electrical P14 and P16 difference values with P14 difference values
For 0 nits) in larger two difference values (two right angle electrical P1 be 100 nits, two right angle electrical P10 and P12 differences with P2 difference values
It is worth for 100nits), the relatively low right angle electrical P2 and P10 of brightness value corresponding to two difference values is obtained, to obtain in the horizontal direction
Two boundary point P2 and P10 of the brightness disproportionation of panel.
In certain embodiments, the minimum area of multiple rectangular areas of the panel can be 1*1 pixel.
In a particular embodiment, further comprise：Step S6, delete remaining right angle electrical P1, P4, P6, P8, P12, P14,
P16 brightness value, luminance compensation calculating only is carried out to two boundary point P2 and P10, thereby can further reduce amount of calculation and
Final memory data output.Certain the embodiment of the present application only schematically illustrates the fine sampling carried out in horizontal direction, according to identical
Process can also carry out the fine sampling control in vertical direction, reach more accurately panel luminance inequality compensation effect.On and
Stating the actions such as the brightness value for obtaining right angle electrical, judgement, calculating can be realized by computing units such as computers.
In a particular embodiment, a kind of Dynamic Sampling Method for elimination panel luminance inequality that the embodiment of the present application provides can
Applied in LCD display panel, OLED display panel, QLED display panels, curved face display panel or other display panels.Example
Such as：Applied in LCD display panel, referring again to Fig. 2 to Fig. 6, one kind that the embodiment of the present application provides eliminates LCD display panel
The Dynamic Sampling Method of brightness disproportionation, this method comprise the following steps：
Step S1, LCD display panel is shot, obtains four right angle electricals of multiple rectangular areas of LCD display panel
Brightness value, such as four right angle electricals P1, P8, P16, N1, N8, N16 of the rectangular area of 8*8 pixel shown in Fig. 2 brightness
Value.
In the embodiment of the present application, the luminance acquisition device for being shot to LCD display panel can be camera, brightness
The brightness value for the right angle electrical P1 that acquisition device obtains is 200nits, right angle electrical P8 brightness value is 50nits, right angle electrical P16
Brightness value is 200nits, right angle electrical N1 brightness value is 200nits, right angle electrical N8 brightness value is 50nits, right angle electrical N16
Brightness value be 200nits.
Step S2, the multiple right angle electrical is obtained（Such as P1, P8, P16, N1, N8, N16 shown in Fig. 2）Brightness value simultaneously
The difference of the brightness value of two right angle electricals (P1 and P8), (P16 and P8) in progress horizontal direction adjacent to each other calculates, more to obtain
Individual difference value.
In the embodiment of the present application, can be carried out by computer two right angle electricals (P1 and P8) adjacent to each other in horizontal direction,
The difference of the brightness value of (P16 and P8) calculates, to obtain this two right angle electricals P1 with P8 difference values as 150 nits, another two right angle electrical
P16 and P8 difference values are 150 nits.
Step S3, judge whether the multiple difference value is more than standard value.
In the embodiment of the present application, standard value may be set to 110 nits, therefore can determine whether the multiple difference value (right angle
The difference of the difference of point P1 and right angle electrical P8 brightness value, right angle electrical P16 and right angle electrical P8 brightness value) whether it is more than standard value
110 nits。
If step S4, any the multiple difference value is more than standard value, multiple more small areas (such as 4* of panel is obtained
4 pixels) rectangular area four right angle electricals（Such as P1, P4, P8, P12, P16 shown in Fig. 3 etc.）Brightness value.
In the embodiment of the present application, difference, right angle electrical P16 and the right angle electrical P8 of right angle electrical P1 and right angle electrical P8 brightness value
The difference of brightness value be all more than the nits of standard value 110, therefore obtain multiple more small areas (4*4 of LCD display panel again
Pixel) four right angle electricals P1, P4, P8, P12, P16 of rectangular area etc. brightness value (as shown in Figure 3), and luminance acquisition fills
The brightness value for putting the right angle electrical P1 of acquirement is 200nits, right angle electrical P8 brightness value is 50nits, right angle electrical P16 brightness value
Brightness value for 200nits, right angle electrical P4 is 50nits, right angle electrical P12 brightness value is 200nits.
Repeat step S2, carry out two right angle electricals (P1 and P4) adjacent to each other in horizontal direction, (P4 and P8), (P8 with
P12), the difference of the brightness value of (P12 and P16) calculates, to obtain this two right angle electricals P1 with P4 difference values as 150 nits, two
Right angle electrical P4 is 0 nits with P8 difference values, and two right angle electrical P8 and P12 difference values are 150 nits, and two right angle electrical P12 and P16 are poor
Different value is 0 nits.
Repeat step S3, judge the multiple difference value (brightness value of the difference of P1 and P4 brightness value, P4 and P8
The difference of the brightness value of the difference of the brightness value of difference, P8 and P12, P12 and P16) whether it is more than the nits of standard value 110.
Difference, the right angle electrical P8 for repeating step S4, right angle electrical P1 and right angle electrical P4 brightness value are bright with right angle electrical P12's
The difference of angle value is all more than the nits of standard value 110, therefore obtain multiple more small areas (2*2 pixel) of LCD display panel
(Fig. 4 is only illustrated in level to four right angle electricals P1, P2, P4, P6, P8, P10, P12, P14, P16 of rectangular area etc. brightness value
A right angle electrical is taken with 2, interval pixel on direction), and the brightness value for the right angle electrical P1 that luminance acquisition device obtains is
200nits, right angle electrical P8 brightness value are 50nits, right angle electrical P16 brightness value is 200nits, right angle electrical P4 brightness value
Brightness value for 50nits, right angle electrical P12 is 200nits, right angle electrical P2 brightness value is 100nits, right angle electrical P6 brightness
The brightness value being worth for 50nits, right angle electrical P10 is 100nits, right angle electrical P14 brightness value is 200nits.
Repeat step S3, judge the multiple difference value (difference of right angle electrical P1 and right angle electrical P2 brightness value, right angle
Difference, right angle electrical P6 and the right angle of the difference of point P2 and right angle electrical P4 brightness value, right angle electrical P4 and right angle electrical P6 brightness value
The difference of point P8 brightness value, the difference of right angle electrical P8 and right angle electrical P10 brightness value, right angle electrical P10 are bright with right angle electrical P12's
The difference of angle value, the right angle electrical P12 and right angle electrical P14 difference of brightness value, right angle electrical P14 and right angle electrical P16 brightness value
Difference) whether it is more than the nits of standard value 110.
If step S5, the multiple difference value is smaller than the nits of standard value 110, judge larger in multiple difference values
Two difference values, the relatively low right angle electrical P2 and P10 of brightness value corresponding to two difference values is obtained, to obtain top panel in the horizontal direction
Brightness disproportionation two boundary point P2 and P10.
In the embodiment of the present application, when all differences value is smaller than 110 nits of standard value, multiple difference values (two are judged
Right angle electrical P1 is 100 nits with P2 difference values, and two right angle electrical P2 are 50 nits, two right angle electrical P4 and P6 differences with P4 difference values
It is worth for 0nits, two right angle electrical P6 and P8 difference values be 0nits, and two right angle electrical P8 and P10 difference values are 50nits, two right angle electricals
P10 is 100nits with P12 difference values, and two right angle electrical P12 are 0 nits, two right angle electrical P14 and P16 difference values with P14 difference values
For 0 nits) in larger two difference values (two right angle electrical P1 be 100 nits, two right angle electrical P10 and P12 differences with P2 difference values
It is worth for 100nits), the relatively low right angle electrical P2 and P10 of brightness value corresponding to two difference values is obtained, to obtain in the horizontal direction
Two boundary point P2 and P10 of the brightness disproportionation of panel.
In certain embodiments, the minimum area of multiple rectangular areas of the LCD display panel can be 1*1 pixel.
In a particular embodiment, further comprise：Step S6, delete remaining right angle electrical P1, P4, P6, P8, P12, P14,
P16 brightness value, luminance compensation calculating only is carried out to two boundary point P2 and P10, thereby can further reduce amount of calculation and
Final memory data output.Certain the embodiment of the present application only schematically illustrates the fine sampling carried out in horizontal direction, according to identical
Process can also carry out the fine sampling control in vertical direction, reach more accurately LCD display panel brightness disproportionation compensation effect
Fruit.In addition, the action such as the brightness value of above-mentioned acquisition right angle electrical, judgement, calculating can be realized by computer.
Described above, the only embodiment of the application, but the protection domain of the application is not limited thereto is any
Those familiar with the art can readily occur in various equivalent modifications or replace in the technical scope that the application discloses
Change, these modifications or substitutions should all cover within the protection domain of the application.Therefore, the protection domain of the application should be with right
It is required that protection domain be defined.
Claims (10)
1. a kind of eliminate the uneven Dynamic Sampling Method of panel luminance, it is characterised in that including：
Counter plate is shot, and obtains the brightness value of four right angle electricals of multiple first rectangular areas of the panel；
Obtain the brightness value of the multiple right angle electrical and carry out the difference of the brightness value of two right angle electricals adjacent to each other on a direction
Calculate, to obtain multiple difference values；
Judge whether the multiple difference value is more than a standard value, if any the multiple difference value is more than the standard value,
The brightness value of four right angle electricals of multiple second rectangular areas of the panel is obtained, wherein the multiple second rectangular area
Area is less than the area of the multiple first rectangular area；
Again two right angle electricals adjacent to each other on the direction are carried out for the brightness value of four right angle electricals of the second rectangular area
The difference of brightness value calculates, and to obtain the multiple difference value, judges whether the multiple difference value is more than the standard value, if
Any the multiple difference value then obtains the rectangular area of multiple more small areas of the panel again still greater than the standard value
The brightness value of four right angle electricals and brightness value again for four right angle electricals of the rectangular area of the multiple more small area enters
The difference of the brightness value of two right angle electricals adjacent to each other is calculated to obtain newest multiple difference values on the row direction, judges institute
State whether newest multiple difference values are more than the standard value, until judging that newest multiple difference values are respectively less than or are equal to
The standard value；
When newest multiple difference values are respectively less than or during equal to the standard value, then newest multiple difference values are judged
In larger two difference values, the relatively low right angle electrical of brightness value corresponding to two difference value is obtained, to obtain in the direction
Two boundary points of the brightness disproportionation of the upper panel.
2. the method as described in claim 1, it is characterised in that the multiple first rectangular area is 8*8 pixel.
3. the method as described in claim 1, it is characterised in that the multiple second rectangular area is 4*4 pixel.
4. the method as described in claim 1, it is characterised in that the rectangular area of the multiple more small area is 2*2 pixel
Or 1*1 pixel.
5. method as claimed in claim 4, it is characterised in that the minimum area of the rectangular area is 1*1 pixel.
6. the method as described in claim 1, it is characterised in that luminance compensation calculating further is carried out to two boundary point.
7. the method as described in claim 1, it is characterised in that the direction is horizontal direction.
8. the method as described in claim 1, it is characterised in that the direction is vertical direction.
9. the method as described in claim 1, it is characterised in that methods described further comprises when acquirement two boundary point
When, then delete the brightness value of remaining right angle electrical.
10. a kind of eliminate the uneven Dynamic Sampling Method of panel luminance, it is characterised in that including：
Counter plate is shot, and obtains the brightness value of four right angle electricals of multiple first rectangular areas of the panel；
Obtain the brightness value of the multiple right angle electrical and carry out the difference of the brightness value of two right angle electricals adjacent to each other on a direction
Calculate, to obtain multiple difference values；
Judge whether the multiple difference value is more than a standard value, if any the multiple difference value is more than the standard value,
The brightness value of four right angle electricals of multiple second rectangular areas of the panel is obtained, wherein the multiple second rectangular area
Area is less than the area of the multiple first rectangular area；
Again two right angle electricals adjacent to each other on the direction are carried out for the brightness value of four right angle electricals of the second rectangular area
The difference of brightness value calculates, and to obtain the multiple difference value, judges whether the multiple difference value is more than the standard value, if
Any the multiple difference value then obtains the rectangular area of multiple more small areas of the panel again still greater than the standard value
The brightness value of four right angle electricals and brightness value again for four right angle electricals of the rectangular area of the multiple more small area enters
The difference of the brightness value of two right angle electricals adjacent to each other is calculated to obtain newest multiple difference values on the row direction, judges institute
State whether newest multiple difference values are more than the standard value, until judging that newest multiple difference values are respectively less than or are equal to
The standard value；
When newest multiple difference values are respectively less than or during equal to the standard value, then newest multiple difference values are judged
In larger two difference values, the relatively low right angle electrical of brightness value corresponding to two difference value is obtained, to obtain in the direction
Two boundary points of the brightness disproportionation of the upper panel；
The calculating of data is compensated to two boundary point.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791759.XA CN107393489B (en) | 2017-09-05 | 2017-09-05 | Eliminate the Dynamic Sampling Method of panel luminance unevenness |
| PCT/CN2017/116289 WO2019047408A1 (en) | 2017-09-05 | 2017-12-14 | Brightness measurement method and dynamic sampling apparatus for display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791759.XA CN107393489B (en) | 2017-09-05 | 2017-09-05 | Eliminate the Dynamic Sampling Method of panel luminance unevenness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393489A true CN107393489A (en) | 2017-11-24 |
| CN107393489B CN107393489B (en) | 2019-02-15 |
Family
ID=60349335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791759.XA Active CN107393489B (en) | 2017-09-05 | 2017-09-05 | Eliminate the Dynamic Sampling Method of panel luminance unevenness |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107393489B (en) |
| WO (1) | WO2019047408A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047408A1 (en) * | 2017-09-05 | 2019-03-14 | 惠科股份有限公司 | Brightness measurement method and dynamic sampling apparatus for display panel |
| WO2020065824A1 (en) * | 2018-09-27 | 2020-04-02 | Ｎｅｃディスプレイソリューションズ株式会社 | Display device, display unevenness correction method, and adjustment system for display unevenness |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001142448A (en) * | 1999-09-02 | 2001-05-25 | Hitachi Ltd | Display device |
| CN1753061A (en) * | 2004-09-22 | 2006-03-29 | 索尼株式会社 | Image display unit and method of correcting brightness in image display unit |
| KR20070099331A (en) * | 2006-04-04 | 2007-10-09 | 엘지전자 주식회사 | A compensating apparatus and a compensating method for image |
| CN101101237A (en) * | 2007-08-21 | 2008-01-09 | 友达光电（苏州）有限公司 | Method for measuring luminescent picture brightness uniformity |
| CN101312545A (en) * | 2008-07-02 | 2008-11-26 | 中兴通讯股份有限公司 | Image detection method and apparatus |
| CN101667418A (en) * | 2009-09-25 | 2010-03-10 | 深圳丹邦投资集团有限公司 | Method for displaying luminance compensation of display screen and system thereof |
| CN105702231A (en) * | 2016-04-20 | 2016-06-22 | 西安交通大学 | Method for obtaining pixel brightness compensation goal |
| CN106328053A (en) * | 2016-10-19 | 2017-01-11 | 深圳市华星光电技术有限公司 | Maximum luminance optimization method and device in OLED Mura compensation |
| CN106991981A (en) * | 2017-05-02 | 2017-07-28 | 深圳市华星光电技术有限公司 | The choosing method of mura offset data reference values position |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393489B (en) * | 2017-09-05 | 2019-02-15 | 惠科股份有限公司 | Eliminate the Dynamic Sampling Method of panel luminance unevenness |
-
2017
- 2017-09-05 CN CN201710791759.XA patent/CN107393489B/en active Active
- 2017-12-14 WO PCT/CN2017/116289 patent/WO2019047408A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001142448A (en) * | 1999-09-02 | 2001-05-25 | Hitachi Ltd | Display device |
| CN1753061A (en) * | 2004-09-22 | 2006-03-29 | 索尼株式会社 | Image display unit and method of correcting brightness in image display unit |
| KR20070099331A (en) * | 2006-04-04 | 2007-10-09 | 엘지전자 주식회사 | A compensating apparatus and a compensating method for image |
| CN101101237A (en) * | 2007-08-21 | 2008-01-09 | 友达光电（苏州）有限公司 | Method for measuring luminescent picture brightness uniformity |
| CN101312545A (en) * | 2008-07-02 | 2008-11-26 | 中兴通讯股份有限公司 | Image detection method and apparatus |
| CN101667418A (en) * | 2009-09-25 | 2010-03-10 | 深圳丹邦投资集团有限公司 | Method for displaying luminance compensation of display screen and system thereof |
| CN105702231A (en) * | 2016-04-20 | 2016-06-22 | 西安交通大学 | Method for obtaining pixel brightness compensation goal |
| CN106328053A (en) * | 2016-10-19 | 2017-01-11 | 深圳市华星光电技术有限公司 | Maximum luminance optimization method and device in OLED Mura compensation |
| CN106991981A (en) * | 2017-05-02 | 2017-07-28 | 深圳市华星光电技术有限公司 | The choosing method of mura offset data reference values position |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047408A1 (en) * | 2017-09-05 | 2019-03-14 | 惠科股份有限公司 | Brightness measurement method and dynamic sampling apparatus for display panel |
| WO2020065824A1 (en) * | 2018-09-27 | 2020-04-02 | Ｎｅｃディスプレイソリューションズ株式会社 | Display device, display unevenness correction method, and adjustment system for display unevenness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107393489B (en) | 2019-02-15 |
| WO2019047408A1 (en) | 2019-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104505043B (en) | Method and device for gray scale compensation of image data | |
| US11074882B2 (en) | Method and device for adjusting grayscale of display panel | |
| CN100336089C (en) | Display device | |
| KR101576334B1 (en) | Common electrode voltage compensating method, apparatus and timing controller | |
| WO2019100418A1 (en) | Brightness compensation device and method, and memory | |
| CN106205546B (en) | Storage method, the compensation data device of a kind of liquid crystal display and its offset data | |
| US8044914B2 (en) | Method of compensating for kick-back voltage and liquid crystal display using the same | |
| WO2017166348A1 (en) | Method for eliminating oled display panel mura | |
| CN106910483A (en) | A kind of mura phenomenons compensation method of display panel and display panel | |
| CN106782427B (en) | The data voltage method of adjustment and device of liquid crystal display panel | |
| US8299996B2 (en) | Driving method for reducing image sticking | |
| DE102007021537A1 (en) | Display unit with multi-touch detection function and associated control method | |
| CN109637475A (en) | The gamma-debugged method of display panel | |
| KR102350818B1 (en) | Method and apparatus for detecting high-frequency components in an image | |
| JP5259134B2 (en) | Display device driving apparatus and video signal correcting method thereof | |
| KR20120139451A (en) | Liquid crystal display device and driving method thereof | |
| CN102124510B (en) | Data processing device, liquid crystal display device, television receiver, and data processing method | |
| JP2008040493A5 (en) | ||
| KR20100100228A (en) | Display device | |
| CN107393489A (en) | It is a kind of to eliminate the uneven Dynamic Sampling Method of panel luminance | |
| CN106952629A (en) | For regular mura repair process method, compensation device and liquid crystal display | |
| CN110085182A (en) | Pixel charging method and display device | |
| US10777152B2 (en) | Driving method and driving device for display panel, and display device | |
| CN112614468B (en) | Brightness compensation method and system of display panel | |
| CN109844851A (en) | The brightness disproportionation modification method and amendment data generating device of liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Huike Industrial Park, Shuitian Village, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Co-patentee after: Chongqing HKC Optoelectronics Technology Co., Ltd. Patentee after: HKC Co., Ltd. Address before: 518000 Huike Industrial Park, Paddy Field Village Private Industrial Park, Shiyan Street, Baoan District, Zhuhai City, Guangdong Province, 1, 2 and 3 workshops, 5 and 7 floors of No. 1 Sunshine Workshop, Kyushu Co-patentee before: Chongqing HKC Optoelectronics Technology Co., Ltd. Patentee before: HKC Co., Ltd. |