CN109920360A - A kind of the display brightness compensation method and compensation system of mosaic screen - Google Patents
A kind of the display brightness compensation method and compensation system of mosaic screen Download PDFInfo
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Abstract
Display brightness compensation method and compensation system this application discloses a kind of mosaic screen, the following steps are included: obtaining the splicing regions in the mosaic screen, the splicing regions include splicing seams for the compensation method；Inquiry obtains the offset data of the first pixel from preset offset data inquiry table；First pixel is multiple rows of pixel perpendicular with the splicing seams in the splicing regions；According to the offset data of the second pixel of offset data interpolation calculation of first pixel；Second pixel is that other pixels of first pixel are removed in the splicing regions；The display brightness of the splicing regions is compensated according to the offset data of first pixel and second pixel.The application can be improved the accuracy of offset data, to improve the compensation effect of splicing regions display brightness.
Description
Technical field
This application involves the display brightness compensation methodes and compensation of technical field of display panel more particularly to a kind of mosaic screen
System.
Background technique
Mosaic screen technology has been widely used at present in the production of large scale display screen, and mosaic screen market wide application can
Aobvious, open air, security monitoring etc. applied to quotient.Existing mosaic screen is mostly spliced with multiple sub- display panels, and two neighboring
Sub- display panel always will appear the region that cannot be shown in splice region, i.e., so-called splicing gap, abbreviation piece.
Piece on mosaic screen affects display effect.Mosaic screen is when showing picture, in the region meeting where splicing seams
There is the phenomenon that brightness unevenness (mura), traditional De-mura (optical compensation) algorithm, to the mura in the region where splicing seams
Compensation effect be not it is very ideal, can not achieve the compensation of pixel (pixel) rank, cause mosaic screen image transition unsmooth
Or there are color difference, have seriously affected display quality.
Summary of the invention
The embodiment of the present application provides the display brightness compensation method and compensation system of a kind of mosaic screen, to solve because of mosaic screen
Splicing regions brightness unevenness caused by splicing regions image transition is unsmooth and problem that display quality is poor.
The embodiment of the present application provides a kind of display brightness compensation method of mosaic screen, comprising the following steps:
The splicing regions in the mosaic screen are obtained, the splicing regions include splicing seams；
Inquiry obtains the offset data of the first pixel from preset offset data inquiry table；First pixel is described
The multiple rows of pixel perpendicular with the splicing seams in splicing regions；
According to the offset data of the second pixel of offset data interpolation calculation of first pixel；Second pixel is institute
State other pixels that first pixel is removed in splicing regions；
It is carried out according to display brightness of the offset data of first pixel and second pixel to the splicing regions
Compensation.
Optionally, further comprising the steps of before the splicing regions obtained in the mosaic screen:
Pixel region in the mosaic screen is divided into multiple pixel subregions, and makes the multiple pixel subregion
The pixel on vertex is constituted and the perpendicular multiple rows of pixel of the splicing seams；
To each pixel subregion, corresponding inquiry sublist is set；
The location information of the pixel on the vertex of each pixel subregion and offset data are stored in its corresponding to look into
It askes in sublist, and all inquiry sublists is aggregated into the offset data inquiry table.
Optionally, the inquiry from preset offset data inquiry table obtains the offset data of the first pixel, including with
Lower step:
Identify all pixels subregion that the splicing regions cover；
It is corresponding that the splicing regions are obtained from preset offset data inquiry table according to all pixels subregion of identification
Inquiry sublist；
Obtain all location informations for saving in the corresponding inquiry sublist of the splicing regions, and by the location information pair
The pixel answered is as first pixel, using the corresponding offset data of the location information as the compensation number of first pixel
According to.
Optionally, the offset data of second pixel of offset data interpolation calculation according to first pixel, including
Following steps:
In each pixel subregion that the splicing regions cover, according to the benefit of the first pixel in the pixel subregion
It repays data interpolating and calculates the offset data of the second pixel in the pixel subregion, to obtain all in the splicing regions
The offset data of two pixels.
Optionally, the mosaic screen includes vertical mosaic screen, and the splicing seams extend along the vertical direction；Each pixel sub-district
The size in domain includes 1 pixel × 16 pixels.
Optionally, the mosaic screen includes horizontal mosaic screen, and the splicing seams are horizontally extending；Each pixel sub-district
The size in domain includes 16 pixels × 1 pixel.
The embodiment of the present application also provides a kind of display brightness compensation systems of mosaic screen, comprising:
Splicing regions obtain module, and for obtaining the splicing regions in the mosaic screen, the splicing regions include splicing
Seam；
First offset data obtains module, for inquiring the benefit for obtaining the first pixel from preset offset data inquiry table
Repay data；Wherein, first pixel is multiple rows of pixel perpendicular with the splicing seams in the splicing regions；
Second offset data obtains module, for according to the second pixel of offset data interpolation calculation of first pixel
Offset data；Wherein, second pixel is that other pixels of first pixel are removed in the splicing regions；
Compensating module, for according to the offset data of first pixel and second pixel to the splicing regions
Display brightness compensates.
Optionally, the display brightness compensation system of the mosaic screen further include:
Sub-zone dividing module, for the pixel region in the mosaic screen to be divided into multiple pixel subregions, wherein
The pixel on the vertex of the multiple pixel subregion is constituted and the perpendicular multiple rows of pixel of the splicing seams；
Sublist setup module is inquired, for corresponding inquiry sublist to be arranged to each pixel subregion；
Memory module, for the location information of the pixel on the vertex of each pixel subregion and offset data to be stored in it
In corresponding inquiry sublist, and all inquiry sublists are aggregated into the offset data inquiry table.
Optionally, the mosaic screen includes vertical mosaic screen, and the splicing seams extend along the vertical direction；Each pixel sub-district
The size in domain includes 1 pixel × 16 pixels.
Optionally, the mosaic screen includes horizontal mosaic screen, and the splicing seams are horizontally extending；Each pixel sub-district
The size in domain includes 16 pixels × 1 pixel.
The mosaic screen display brightness compensation method for having the beneficial effect that the application of the application make in splicing regions with splicing seams
The offset data of perpendicular multiple rows of pixel (the first pixel) inquires acquisition directly in preset offset data inquiry table, and spells
The rest of pixels (the second pixel) connect in region is located between multiple rows of pixel (the first pixel), and the offset data of the second pixel can root
It calculates and obtains in the enterprising row interpolation in direction parallel with splicing seams according to the offset data of the first pixel, avoid positioned at splicing seams
The pixel of two sides calculates in the direction enterprising row interpolation perpendicular with splicing seams and obtains offset data, improves the standard of offset data
True property, so that the image transition of splicing regions is smoother, is promoted to improve the compensation effect of the display brightness of splicing regions
The display quality of mosaic screen.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the application, the technical solution of the application will be made
And other beneficial effects are apparent.
Fig. 1 is a kind of schematic process flow diagram of the display brightness compensation method of mosaic screen provided by the embodiments of the present application；
Fig. 2 is a kind of structural schematic diagram of vertical mosaic screen provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of horizontal mosaic screen provided by the embodiments of the present application；
Fig. 4 splices to be provided by the embodiments of the present application by the pixel subregion equal part of unit of 1 pixel × 16 pixels vertically
The effect diagram of pixel region in screen；
Fig. 5 is a kind of structural schematic diagram of the display brightness compensation system of mosaic screen provided by the embodiments of the present application.
Specific embodiment
Specific structure and function details disclosed herein are only representative, and are for describing showing for the application
The purpose of example property embodiment.But the application can be implemented by many alternative forms, and be not interpreted as
It is limited only by the embodiments set forth herein.
In the description of the present application, it is to be understood that term " center ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", " second ", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, art
Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
In addition, term " includes " and its any deformation, it is intended that cover and non-exclusive include.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, otherwise singular used herein above "one", " one " also attempt to include plural number.Also answer
When understanding, term " includes " and/or "comprising" used herein above provide stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of other one or more features, integer, step, operation, unit,
Component and/or combination thereof.
The application is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, the embodiment of the present application provides a kind of display brightness compensation method of mosaic screen, including following step
It is rapid:
S101: the splicing regions in mosaic screen are obtained, splicing regions include splicing seams.
Specifically, as shown in Figures 2 and 3, mosaic screen 1 is spliced by muti-piece (such as 2 pieces) sub- display screen, adjacent
The position of two pieces of sub- display screens splicings is there are splicing seams 3, the phenomenon that pixel of 3 two sides of splicing seams is easy to appear brightness disproportionation, should
Region where partial pixel is splicing regions 2.Mosaic screen 1 includes vertical mosaic screen or horizontal mosaic screen, wherein vertical splicing
Splicing seams 3 in the splicing regions 2 of screen extend along the vertical direction, and the splicing seams 3 in the splicing regions 2 of horizontal mosaic screen are along level
Direction extends.
S102: inquiry obtains the offset data of the first pixel from preset offset data inquiry table；First pixel is to spell
Connect multiple rows of pixel perpendicular with splicing seams in region.
Specifically, other pixels are not spaced between two pixels of arbitrary neighborhood in each row's pixel in the first pixel,
And each row's pixel length and splicing regions it is of same size.
S103: according to the offset data of the second pixel of offset data interpolation calculation of the first pixel；Second pixel is splicing
Other pixels of the first pixel are removed in region.
Specifically, the second pixel is located between multiple rows of pixel in splicing regions (the first pixel), due to multiple rows of first picture
Element is perpendicular with the direction where splicing seams, each second pixel is all located at adjacent two and ranked first between pixel, Ke Yi
Interpolation calculation is carried out according to the offset data of the first pixel on the direction parallel with splicing seams 3, obtains the compensation of the second pixel
Data.
S104: it is compensated according to display brightness of the offset data of the first pixel and the second pixel to splicing regions.
In view of hardware (such as storage device) cost problem, traditional De-mura algorithm usually in the horizontal direction and
The offset data of pixel to be compensated is obtained on vertical direction by interpolation calculation, this method is to splicing close in splicing regions 2
The compensation effect of the pixel to be compensated of the two sides of seam 3 is not achieved compensation and requires, compared to traditional De-mura algorithm, this programme
Display brightness compensation method keeps the offset data of multiple rows of pixel perpendicular with splicing seams 3 in splicing regions 2 (the first pixel) straight
It connects to inquire in preset offset data inquiry table and obtain, and the rest of pixels (the second pixel) in splicing regions is located at multiple rows of picture
Between plain (the first pixel), the offset data of the second pixel can be according to the offset data of the first pixel parallel with splicing seams
The enterprising row interpolation in direction, which calculates, to be obtained, and the pixel avoided positioned at 3 two sides of splicing seams is enterprising in the direction perpendicular with splicing seams 3
Row interpolation, which calculates, obtains offset data, improves the accuracy of offset data, thus improve the display brightness of splicing regions 2
Compensation effect improves the display quality of mosaic screen 1 so that the image transition of splicing regions 2 is smoother.
It is further comprising the steps of before obtaining the splicing regions 2 in mosaic screen 1 in step S101:
Pixel region in mosaic screen 1 is divided into multiple pixel subregions, and make the vertex of multiple pixel subregions
Pixel is constituted and the perpendicular multiple rows of pixel of splicing seams 3；
To each pixel subregion, corresponding inquiry sublist is set；
The location information of the pixel on the vertex of each pixel subregion and offset data are stored in its corresponding inquiry
In table, and all inquiry sublists are aggregated into offset data inquiry table.
Specifically, the number of pixels in each pixel subregion is identical, each vertex of each pixel subregion is right respectively
There should be a pixel, and be total to vertex, i.e. two pictures in two pixel subregions with the arbitrary neighborhood on the splicing seams same direction
Sub-prime region includes the pixel of an identical location information.
In the present embodiment, each pixel subregion is correspondingly provided with inquiry sublist, inquires in sublist and preserves pixel sub-district
The location information of the pixel on the vertex in domain and corresponding offset data are believed according to the position of the pixel on the vertex of pixel subregion
Breath, can find corresponding offset data in corresponding inquiry sublist.
Specifically, the size of each pixel subregion includes 1 pixel × 16 pixels, i.e., when mosaic screen 1 is vertical mosaic screen
Each pixel subregion includes 1 pixel in (X-direction) in the horizontal direction, includes 16 pixels in vertical direction (Y-direction),
Each pixel subregion includes two vertex, and one pixel of each vertex correspondence is spaced 15 between the pixel on two vertex
Pixel.Mosaic screen 1 includes horizontal mosaic screen, and the size of each pixel subregion includes 16 pixels × 1 pixel, i.e., each pixel
Region includes 16 pixels in (X-direction) in the horizontal direction, includes 1 pixel in vertical direction (Y-direction), each pixel
Region includes two vertex, and one pixel of each vertex correspondence is spaced 15 pixels between the pixel on two vertex.Certainly,
The size of pixel subregion is without being limited thereto, by taking vertical mosaic screen as an example, the size of each pixel subregion can also be 1 pixel ×
8 pixels, 2 pixels × 8 pixels or 2 pixels × 16 pixels etc..
Inquiry sublist in traditional De-mura algorithm is usually with 4 pixels × 4 pixels, 8 pixels × 8 pixels or 16 pixels
× 16 pixels are unit.In the present embodiment, by taking vertical mosaic screen as an example, the size of each pixel subregion is 1 pixel × 16 pictures
Element, on the one hand, corresponding inquiry sublist carries out data storage, the memory space needed and biography by unit of 1 pixel × 16 pixels
4 pixels × 4 pixels inquiry sublist of system is identical, therefore this programme does not need the memory space outside increase, not will increase hardware
Cost；On the other hand, in every row's pixel of the pixel composition on the vertex having a size of 1 pixel × 16 pixels pixel subregion, appoint
Do not have spaced pixel between two pixels for anticipating adjacent, ensure that the corresponding offset data of each pixel in every row's pixel
Acquisition can be directly inquired, vertical mosaic screen interpolation calculation bring error in the horizontal direction is avoided, is conducive to improve and mend
Repay effect.
Specifically, inquiry obtains the offset data of the first pixel from preset offset data inquiry table in step S102,
The following steps are included:
The all pixels subregion that identification splicing regions 2 cover；
Obtain that splicing regions 2 are corresponding to be looked into from preset offset data inquiry table according to all pixels subregion of identification
Ask sublist；
Obtain all location informations for saving in the corresponding inquiry sublist of splicing regions, and by the corresponding pixel of location information
As the first pixel, using the corresponding offset data of location information as the offset data of the first pixel.
It is each in the location information and splicing regions of the pixel saved in the corresponding inquiry table of splicing regions in the present embodiment
The pixel on the vertex of a pixel subregion is corresponding, and the pixel on the vertex of all pixels subregion of splicing regions constitutes and splicing
It stitches perpendicular multiple rows of pixel (the first pixel), therefore the offset data of the first pixel is directly according to location information from corresponding inquiry
Corresponding offset data is obtained in sublist, does not need interpolation calculation, is avoided interpolation calculation bring error, is improved compensation number
According to accuracy.
Specifically, in step S103, according to the offset data of the second pixel of offset data interpolation calculation of the first pixel, packet
Include following steps:
In each pixel subregion that splicing regions 2 cover, according to the offset data of the first pixel in pixel subregion
The offset data of second pixel in interpolation calculation pixel subregion, to obtain the compensation number of all second pixels in splicing regions
According to.
In the present embodiment, between the first pixel, the second pixel is to spell the second pixel in each pixel subregion
3 Tongfang of seam obtains offset data upwardly through the offset data interpolation calculation of the first pixel, due to splicing seams 3 it is equidirectional on
The first pixel it is identical with splicing environment locating for the second pixel, by interpolation calculation obtain offset data can be effectively improved
The problem of brightness disproportionation.
As shown in Figure 2 and Figure 4, the embodiment of the present application also provides a kind of display brightness compensation methodes of mosaic screen, to divide
Illustrate for the vertical mosaic screen that resolution is 7680 × 4320.Wherein, the pixel region in vertical mosaic screen is with 1 pixel × 16 pictures
Element is that the pixel subregion of unit carries out equal part, then vertical mosaic screen includes 7680 pixel in (X-direction) in the horizontal direction
Region, i.e., the pixel region in vertical mosaic screen (do not mark) in the horizontal direction by unit equal part of 1 pixel in figure, and vertical
Mosaic screen includes 270 pixel subregions in vertical direction (Y-direction), i.e., the pixel region in vertical mosaic screen is in vertical side
Upwards using 16 pixels as unit equal part.Each pixel subregion has and only there are two vertex, and each pixel subregion is one corresponding
Sublist is inquired, the location information and offset data for being stored with the pixel on vertex of corresponding pixel subregion in sublist are inquired.
As shown in figure 4, pixel A, B, C, D, E, F are the first pixel in splicing regions 2, wherein pixel A and pixel B are
Same adjacent two pixel that ranked first in pixel, pixel C and pixel D are another adjacent two picture that ranked first in pixel
Element, pixel E and pixel F are another adjacent two pixel that ranked first in pixel.And pixel A and pixel C are the same pixel
The pixel on two vertex of subregion, the location information and offset data of pixel A and pixel C are stored in where pixel A and pixel C
The corresponding inquiry sublist of pixel subregion in；Pixel B and pixel D are the pixel on two vertex of the same pixel subregion,
The location information and offset data of pixel B and pixel D are stored in the corresponding inquiry of pixel subregion where pixel B and pixel D
In sublist；Pixel C and pixel E is the pixel on two vertex of the same pixel subregion, the location information of pixel C and pixel E
In the corresponding inquiry sublist of pixel subregion where being stored in pixel C and pixel E with offset data；Pixel D and pixel F is same
The pixel on two vertex of one pixel subregion, the location information and offset data of pixel D and pixel F be stored in pixel D and
In the corresponding inquiry sublist of pixel subregion where pixel F, above four pixel subregions are disposed adjacent.Therefore, pixel A,
B, the corresponding inquiry sublist inquiry of pixel subregion of the offset data of C, D, E, F respectively according to locating for it obtains.
Pixel M and pixel N is the second pixel in splicing regions 2, wherein pixel M and pixel A and C are in the same picture
Sub-prime region, pixel N and pixel B and D are in the same pixel subregion, and the offset data of pixel M is according to pixel A and pixel C
Offset data carry out interpolation calculation acquisition, likewise, the offset data of pixel N according to pixel B and the offset data of pixel D into
Row interpolation, which calculates, to be obtained, and the formula of interpolation calculation is as follows:
M=((YM-YA)·C+(YC-YM)·A)/(YC-YA)
N=((YN-YB)·D+(YD-YN)·B)/(YD-YB)
Wherein, YMIndicate that the ordinate of pixel A, M indicate the offset data of pixel A；YNIndicate the ordinate of pixel N, N table
Show the offset data of pixel N；YAIndicate that the ordinate of pixel A, A indicate the offset data of pixel A；YBIndicate the vertical seat of pixel B
Mark, B indicate the offset data of pixel B；YCIndicate that the ordinate of pixel C, C indicate the offset data of pixel C；YDIndicate pixel D's
Ordinate, D indicate the offset data of pixel D.
As shown in figure 5, the embodiment of the present application also provides a kind of display brightness compensation systems 4 of mosaic screen, comprising:
Splicing regions obtain module, and for obtaining the splicing regions in mosaic screen, splicing regions include splicing seams；
First offset data obtains module, for inquiring the benefit for obtaining the first pixel from preset offset data inquiry table
Repay data；Wherein, the first pixel is multiple rows of pixel perpendicular with splicing seams in splicing regions；
Second offset data obtains module, for the compensation according to the second pixel of offset data interpolation calculation of the first pixel
Data；Wherein, the second pixel is that other pixels of the first pixel are removed in splicing regions；
Compensating module, for being carried out according to display brightness of the offset data of the first pixel and the second pixel to splicing regions
Compensation.
In the present embodiment, the compensation system and the problem of can solve the brightness disproportionation of splicing regions of vertical mosaic screen,
Also the problem of can solve the brightness disproportionation of the splicing regions of horizontal mosaic screen.The compensation system is obtained by the first offset data
Module is inquired directly in preset offset data inquiry table obtains the multiple rows of pixel perpendicular with splicing seams in splicing regions (the
One pixel) offset data, and the rest of pixels (the second pixel) in splicing regions is located between multiple rows of pixel (the first pixel),
Second offset data obtain module according to the offset data of the first pixel the interpolation calculation the on the direction parallel with splicing seams
The offset data of two pixels avoids the pixel positioned at splicing seams two sides in the direction enterprising row interpolation meter perpendicular with splicing seams
It calculates and obtains offset data, improve the accuracy of offset data, so that the compensation effect of the display brightness of splicing regions is improved,
So that the image transition of splicing regions is smoother, the display quality of mosaic screen is improved.
The present embodiment is optional, the display brightness compensation system 4 of mosaic screen further include:
Sub-zone dividing module, for the pixel region in mosaic screen to be divided into multiple pixel subregions, wherein multiple
The pixel on the vertex of pixel subregion is constituted and the perpendicular multiple rows of pixel of splicing seams；
Sublist setup module is inquired, for corresponding inquiry sublist to be arranged to each pixel subregion；
Memory module, for the location information of the pixel on the vertex of each pixel subregion and offset data to be stored in it
In corresponding inquiry sublist, and all inquiry sublists are aggregated into offset data inquiry table.
Specifically, the number of pixels in each pixel subregion is identical, each vertex of pixel subregion has been respectively corresponded
One pixel, and be total to vertex in two pixel subregions with the arbitrary neighborhood on the splicing seams same direction, that is, possess identical
The pixel of location information.
In the present embodiment, each pixel subregion is correspondingly provided with inquiry sublist, inquires in sublist and preserves pixel sub-district
The location information of the vertex pixel in domain and corresponding offset data are believed according to the position of the pixel on the vertex of pixel subregion
Breath, can find corresponding offset data in corresponding inquiry sublist.
The present embodiment is optional, and mosaic screen includes vertical mosaic screen, and splicing seams extend along the vertical direction；Each pixel sub-district
The size in domain includes 1 pixel × 16 pixels, i.e., each pixel subregion includes 1 pixel in (X-direction) in the horizontal direction, perpendicular
Histogram in (Y-direction) include 16 pixels, each pixel subregion include two vertex, one pixel of each vertex correspondence,
15 pixels are spaced between the pixel on two vertex.
In the present embodiment, corresponding inquiry sublist carries out data storage, the storage needed by unit of 1 pixel × 16 pixels
Space is identical as 4 traditional pixels × inquiry sublist of 4 pixels, therefore this programme does not need the memory space outside increase, will not
Increase hardware cost；In addition, having a size of 1 pixel × 16 pixels pixel subregion by the pixel of entire display screen in the horizontal direction
On be divided into muti-piece, the pixel on the vertex of pixel subregion forms multiple rows of pixel in the horizontal direction, any in every row's pixel
Do not have spaced pixel between two adjacent pixels, ensure that the corresponding offset data of each pixel in every row's pixel can
It is obtained with directly inquiring, avoids interpolation calculation offset data bring error in the horizontal direction, can hung down with effective solution
The problem of the display brightness unevenness of straight mosaic screen.
Unlike the embodiments above is, mosaic screen includes horizontal mosaic screen, and splicing seams extend along the vertical direction；Each
The size of pixel subregion includes 16 pixels × 1 pixel, i.e., each pixel subregion includes 16 in (X-direction) in the horizontal direction
Pixel, includes 1 pixel in vertical direction (Y-direction), and each pixel subregion includes two vertex, each vertex correspondence one
A pixel is spaced 15 pixels between the pixel on two vertex.
In the present embodiment, corresponding inquiry sublist carries out data storage, the storage needed by unit of 16 pixels × 1 pixel
Space is identical as 4 traditional pixels × inquiry sublist of 4 pixels, therefore this programme does not need the memory space outside increase, will not
Increase hardware cost；In addition, having a size of 16 pixels × 1 pixel pixel subregion by the pixel of entire display screen in vertical direction
On be divided into muti-piece, the pixel on the vertex of pixel subregion forms multiple rows of pixel in the vertical direction, any in every row's pixel
Do not have spaced pixel between two adjacent pixels, ensure that the corresponding offset data of each pixel in every row's pixel can
It is obtained with directly inquiring, avoids interpolation calculation offset data bring error in the vertical direction, it can be with effective solution water
The problem of the display brightness unevenness of flat mosaic screen.
Although above preferred embodiment is not to limit in conclusion the application is disclosed above with preferred embodiment
The application processed, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of display brightness compensation method of mosaic screen, which comprises the following steps:
The splicing regions in the mosaic screen are obtained, the splicing regions include splicing seams；
Inquiry obtains the offset data of the first pixel from preset offset data inquiry table；First pixel is the splicing
The multiple rows of pixel perpendicular with the splicing seams in region；
According to the offset data of the second pixel of offset data interpolation calculation of first pixel；Second pixel is the spelling
Connect other pixels that first pixel is removed in region；
The display brightness of the splicing regions is compensated according to the offset data of first pixel and second pixel.
2. the display brightness compensation method of mosaic screen as described in claim 1, which is characterized in that obtain the splicing described
It is further comprising the steps of before splicing regions in screen:
Pixel region in the mosaic screen is divided into multiple pixel subregions, and makes the vertex of the multiple pixel subregion
Pixel constitute with the perpendicular multiple rows of pixel of the splicing seams；
To each pixel subregion, corresponding inquiry sublist is set；
The location information of the pixel on the vertex of each pixel subregion and offset data are stored in its corresponding inquiry
In table, and all inquiry sublists are aggregated into the offset data inquiry table.
3. the display brightness compensation method of mosaic screen as claimed in claim 2, which is characterized in that described from preset compensation number
The offset data of the first pixel is obtained according to inquiry in inquiry table, comprising the following steps:
Identify all pixels subregion that the splicing regions cover；
Obtain that the splicing regions are corresponding to be looked into from preset offset data inquiry table according to all pixels subregion of identification
Ask sublist；
All location informations saved in the corresponding inquiry sublist of the splicing regions are obtained, and the location information is corresponding
Pixel is as first pixel, using the corresponding offset data of the location information as the offset data of first pixel.
4. the display brightness compensation method of mosaic screen as claimed in claim 3, which is characterized in that described according to first picture
The offset data of the second pixel of offset data interpolation calculation of element, comprising the following steps:
In each pixel subregion that the splicing regions cover, according to the compensation number of the first pixel in the pixel subregion
According to the offset data of the second pixel in pixel subregion described in interpolation calculation, to obtain all second pictures in the splicing regions
The offset data of element.
5. the display brightness compensation method of the mosaic screen as described in claim 2 to 4 any one, which is characterized in that the spelling
Connecing screen includes vertical mosaic screen, and the splicing seams extend along the vertical direction；The size of each pixel subregion includes 1 pixel × 16
Pixel.
6. the display brightness compensation method of the mosaic screen as described in claim 2 to 4 any one, which is characterized in that the spelling
Connecing screen includes horizontal mosaic screen, and the splicing seams are horizontally extending；The size of each pixel subregion includes 16 pixel × 1
Pixel.
7. a kind of display brightness compensation system of mosaic screen characterized by comprising
Splicing regions obtain module, and for obtaining the splicing regions in the mosaic screen, the splicing regions include splicing seams；
First offset data obtains module, for inquiring the compensation number for obtaining the first pixel from preset offset data inquiry table
According to；Wherein, first pixel is multiple rows of pixel perpendicular with the splicing seams in the splicing regions；
Second offset data obtains module, for the compensation according to the second pixel of offset data interpolation calculation of first pixel
Data；Wherein, second pixel is that other pixels of first pixel are removed in the splicing regions；
Compensating module, for the display according to the offset data of first pixel and second pixel to the splicing regions
Brightness compensates.
8. the display brightness compensation system of mosaic screen as claimed in claim 7, which is characterized in that the display of the mosaic screen is bright
Spend compensation system further include:
Sub-zone dividing module, for the pixel region in the mosaic screen to be divided into multiple pixel subregions, wherein described
The pixel on the vertex of multiple pixel subregions is constituted and the perpendicular multiple rows of pixel of the splicing seams；
Sublist setup module is inquired, for corresponding inquiry sublist to be arranged to each pixel subregion；
Memory module, for the location information of the pixel on the vertex of each pixel subregion and offset data to be stored in its correspondence
Inquiry sublist in, and all inquiry sublists are aggregated into the offset data inquiry table.
9. the display brightness compensation system of mosaic screen as claimed in claim 8, which is characterized in that the mosaic screen includes vertical
Mosaic screen, the splicing seams extend along the vertical direction；The size of each pixel subregion includes 1 pixel × 16 pixels.
10. the display brightness compensation system of mosaic screen as claimed in claim 8, which is characterized in that the mosaic screen includes water
Flat mosaic screen, the splicing seams are horizontally extending；The size of each pixel subregion includes 16 pixels × 1 pixel.
Priority Applications (1)
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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Application publication date: 20190621 |