CN109192126A - The image processing method of display panel - Google Patents
The image processing method of display panel Download PDFInfo
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- CN109192126A CN109192126A CN201811177479.0A CN201811177479A CN109192126A CN 109192126 A CN109192126 A CN 109192126A CN 201811177479 A CN201811177479 A CN 201811177479A CN 109192126 A CN109192126 A CN 109192126A
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
Abstract
The invention discloses a kind of image processing methods of display panel, the image data of display panel is divided at least two adjacent sub-viewing areas and is shown, the image processing method of display panel includes: on the basis of the line of demarcation of two neighboring sub-viewing areas, from line of demarcation respectively towards neither ipsilateral selection first side position reason region and second side processing region；It determines the position where pixel to be shown manages region or second side processing region in first side position, and according to the position where pixel to be shown, obtains the yield value and output grayscale value of pixel to be shown；The yield value of pixel to be shown and the product of output grayscale value are calculated, obtains the actual gray value of pixel to be shown, and according to actual gray value to pixel write data voltage to be shown.The present invention determines the output grayscale value of its yield value and image data according to the position where pixel, and integration gain value is adjusted to output grayscale value and treats display pixel with this and drives, and can desalinate the boundary line of image data.
Description
Technical field
The present invention relates to technical field of image processing more particularly to a kind of image processing methods of display panel.
Background technique
With the continuous renewal of panel technology, the large size panel design of high pixel high refresh rate continues to increase.For system
Make technology perhaps cost the considerations of high pixel high refresh rate large size panel design there are bilateral driving framework or monolithics 2
TCON (Timing Controller, sequence controller) framework, the segmentation of image data there are upper and lower split screen driving method or
Person or so split screen driving method, the grid line positioned at segmentation boundary line two sides are carried out driving scanning respectively to show picture number
According to.
Due to the influence of various extraneous factors, often there is mura (color spot) phenomenon in the segmentation intersection of image data,
(minimum of block size, i.e. algorithm process is single by the Block size of demura (removing color spot) algorithm of common high-resolution screen
Member) it is typically all 16*16pixel (pixel), it is difficult to mix up intersection completely, image occurs and show discontinuous phenomenon.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of image processing method of display panel, Ke Yiyou
The boundary line of the image data of effect desalination panel.
In order to achieve the above purpose, present invention employs the following technical solutions:
A kind of image processing method of display panel, it is aobvious that the image data of display panel is divided at least two adjacent sons
Show that region is shown, the image processing method of the display panel includes:
On the basis of the line of demarcation of two neighboring sub-viewing areas, first is chosen towards neither ipsilateral respectively from the line of demarcation
Side processing region and second side processing region；
Determine the position where pixel to be shown manages region or second side processing region in the first side position, and root
According to the position where the pixel to be shown, the yield value and output grayscale value of the pixel to be shown are obtained；
The yield value of the pixel to be shown and the product of output grayscale value are calculated, obtains the reality of the pixel to be shown
Grayscale value, and according to the actual gray value to the pixel write data voltage to be shown.
As one of embodiment, the determination pixel to be shown manages region or described second in the first side position
Position where the processing region of side, comprising: the first side position is managed into region and second side processing region is respectively divided into M
Row, N column subregion, the line of demarcation are parallel with the direction of row, wherein M, N are the integer not less than 2；
The position according to where the pixel to be shown, obtains the yield value of the pixel to be shown, comprising: according to
The line number and columns of subregion where the pixel to be shown search the gain table or described second in first side position reason region
The gain table of side processing region obtains the yield value of the pixel to be shown.
As one of embodiment, the length/width of each subregion is the length/width of single pixel
Integral multiple.
As one of embodiment, the length/width of at least one subregion is greater than the length of single pixel/wide
Degree, and in the subregion that length/width is greater than the length/width of single pixel, the gain in first side position reason region
The yield value in each region is changed linearly along line direction and column direction in the gain table of table and second side processing region.
As one of embodiment, at least one of M, N are not more than 8.
As one of embodiment, in the gain table in first side position reason region, second side processing region
Gain table in record have the yield value of the row blueline of each subregion, column blueline intersection position；
The position according to where the pixel to be shown, obtains the yield value of the pixel to be shown, comprising:
Judge whether the pixel to be shown is expert at blueline, column blueline intersection position；
If so, the corresponding yield value in the intersection position of row blueline, column blueline is the pixel to be shown
Yield value；Otherwise,
The pixel to be shown is enclosed four different row bluelines being located therein, column blueline intersection position institute by acquisition
Corresponding yield value, and the yield value of the pixel to be shown is calculated according to linear interpolation method.
As one of embodiment, the position according to where the pixel to be shown obtains output grayscale value,
Include:
The output grayscale value for obtaining the output grayscale value and current line pixel of the pixel previous row pixel to be shown, is searched
The first grayscale table in first side position reason region or the second grayscale table of second side processing region, obtain output grayscale
Value；
Wherein, the first grayscale table and the second grayscale table record have the output grayscale value institute of adjacent rows pixel right
The lookup value answered, the lookup value are the output grayscale value of the pixel to be shown.
As one of embodiment, in the first grayscale table and the second grayscale table, former one-row pixels
Output grayscale value and current line pixel output grayscale value as search node, the output grayscale value range of previous row pixel and
The output grayscale value range of current line pixel is divided into multiple grayscale subregions, at least one described grayscale subregion includes multiple ashes
Rank value, and in the grayscale subregion comprising multiple grayscale values, the output grayscale value with one-row pixels changes linearly.
As one of embodiment, the position according to where the pixel to be shown obtains output grayscale value,
Further include:
The output grayscale value of the output grayscale value and current line pixel that judge the previous row pixel of the pixel to be shown is
At the no endpoint for all falling within grayscale subregion；
If so, lookup value corresponding to the output grayscale value of previous row pixel and the output grayscale value of current line pixel is
To export grayscale value；Otherwise,
Obtain the previous row pixel of the pixel to be shown output grayscale value where grayscale subregion two endpoints, when
Lookup value corresponding to two endpoints of the grayscale subregion where the output grayscale value for the pixel that moves ahead, and according to linear interpolation method meter
Calculate the output grayscale value for obtaining the pixel to be shown.
As one of embodiment, the gray number that each grayscale subregion is included is identical.
The present invention is in the region of image data boundary line two sides, according to the position where each pixel, determines its gain respectively
The output grayscale value of value and image data, integration gain value are adjusted output grayscale value, to be treated according to adjustment result
Display pixel is driven, and can desalinate the boundary line of image data separated place to the maximum extent.
Detailed description of the invention
Fig. 1 is the partitioned mode schematic diagram at the image line of demarcation of the display panel of the embodiment of the present invention；
Fig. 2 is the image processing method schematic diagram of the embodiment of the present invention；
Fig. 3 is a kind of gain table of one side region of line of demarcation of the embodiment of the present invention；
Fig. 4 is the method schematic diagram that the yield value of pixel is calculated using gain table；
Fig. 5 is a kind of grayscale table of one side region of line of demarcation of the embodiment of the present invention；
Fig. 6 is the method schematic diagram that the output grayscale value of pixel is calculated using grayscale meter.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Refering to fig. 1, for display panel of the invention during display, image data is divided into two adjacent sub- viewing areas
Domain is shown, for example, image is divided into left and right two parts from intermediate line of demarcation C or upper and lower two parts scan respectively, this
In, it is illustrated so that image data is divided into two parts up and down as an example.
As shown in connection with fig. 2, the image processing method of the display panel of the present embodiment specifically includes that
S01, on the basis of the line of demarcation C of two neighboring sub-viewing areas, from line of demarcation C respectively towards neither ipsilateral up and down
It chooses the first side position near the C of line of demarcation and manages region A and second side processing region B, wherein first side position manages region A and second
The length of side processing region B and the equivalent width of effective display area domain, with ensure the entire row of pixels regions of the line of demarcation two sides C all by
Optimization；
S02, position where pixel x to be shown manages region A or second side processing region B in first side position, and root are determined
According to the position where pixel x to be shown, the yield value gain_x and output grayscale value gray_x of pixel x to be shown are obtained；
The product of S03, the yield value gain_x for calculating pixel to be shown and output grayscale value gray_x, obtain picture to be shown
The actual gray value G_x of plain x, and data voltage is written to pixel x to be shown according to actual gray value G_x.
Specifically, in step S02, determine that pixel x to be shown manages region A or second side processing region B institute in first side position
Position process, specifically include that
S021, first side position reason region A and second side processing region B is respectively divided into M row, N column subregion, line of demarcation C
It is parallel with capable direction, wherein M, N are the integer not less than 2；
S022, determine pixel x to be shown in the row and column where first side position reason region A or second side processing region B.
The gain table of first side position reason region A and the gain table of second side processing region B, the two increasings are stored in system
Record has the yield value of different location in alignment processing region in beneficial table, this according to the position where pixel x to be shown, obtain to
The process of the yield value gain_x of display pixel x, specifically includes that
S023, according to the line number and columns of the subregion where pixel x to be shown, search the gain of first side position reason region A
The gain table of table or second side processing region B obtains the yield value gain_x of pixel x to be shown.
In the present embodiment, the effective display area domain of display panel is divided into two parts symmetrical above and below, the first side by line of demarcation C
The equivalent width of processing region A, second side processing region B.It is understood that first side position manages region A, second side treatment region
The width of domain B can also be different, and the present invention does not also limit the quantity in sub-viewing areas or line of demarcation, in other embodiments
In, image data is also divided into more than two adjacent sub-viewing areas and is shown that the image processing method is same
It is applicable in.
As one of preferred embodiment, the length/width of each subregion of the present embodiment is single pixel
Length/width integral multiple, i.e. the size of a subregion just corresponding one or more pixels.Preferably, at least one point
The length/width in area is greater than the length/width of single pixel, and the width/height of each subregion may be the same or different.
In the present embodiment, at least one of M, N are not more than 8, for example, first side position manages region A and second side processing region B
It is divided into 8 rows, 16 column subregions respectively, i.e., the region that first side position reason region A, second side processing region B are formed is divided into
16 × 16 subregions.
Preferably, the present embodiment is in the subregion that length/width is greater than the length/width of single pixel, first side position reason
The yield value in each region linearly becomes along line direction and column direction in the gain table in region and the gain table of second side processing region
Change.
First side position is managed in the gain table of region A, the set-up mode of the gain table of second side processing region B is almost the same,
As shown in figure 3, in the gain table of first side position reason region A, in the gain table of second side processing region B, record has the row of each subregion
Blueline Rm, column blueline CnYield value gain (the R of intersection positionm, Cn), for example, in table shown in Fig. 3, it is laterally corresponding
It is 17 column blueline C0~C16, corresponding longitudinal direction is 9 row blueline R0~R8, column blueline C7With row blueline R2Friendship
Yield value gain (the R of point position2, C7)=a, column blueline C8With row blueline R2Intersection position yield value gain (R2,
C8)=b, column blueline C7With row blueline R3Intersection position yield value gain (R3, C7)=c, column blueline C8With row point
Area line R3Intersection position yield value gain (R3, C8)=d.
Specifically, in step S023, according to the position where pixel x to be shown, the yield value of pixel x to be shown is obtained
The process of gain_x, specifically includes:
S0231, judge whether pixel x to be shown is expert at blueline Rm, column blueline CnIntersection position；
S0232, if so, row blueline Rm, column blueline CnThe corresponding yield value gain (R in the intersection positionm, Cn)
The yield value gain_x of pixel x as to be shown, such as in Fig. 3, the increasing of the intersection position of column blueline C7 and row blueline R2
Benefit value gain (R2, C7)=a, column blueline C8With row blueline R2Intersection position yield value gain (R2, C8)=b, column point
Area line C7With row blueline R3Intersection position yield value gain (R3, C7)=c, column blueline C8With row blueline R3Intersection point
Yield value gain (the R of position3, C8)=d；Otherwise,
Pixel x to be shown is enclosed four different row blueline R being located therein by S0233, acquisitionm, column blueline CnIntersection point
Yield value corresponding to position, and the yield value gain_x of pixel x to be shown is calculated according to linear interpolation method.
Such as shown in Fig. 4, for as two adjacent row blueline Rm/ adjacent two column blueline CnBetween subregion pair
The situation when size of multiple pixels is answered, here, suppose that having determined that the position of pixel x to be shown is placed exactly in first side position reason area
The column blueline C of domain A or second side processing region B7、C8Between, and it is located at row blueline R2、R3Between, by inquiring gain
Table obtains column blueline C7、C8Respectively with row blueline R2、R3Yield value a, b of four vertex positions of the rectangle surrounded, c,
D, column blueline C7、C8The distance between be m, row blueline R2、R3The distance between be n, pixel x to be shown and column blueline C7
The distance between be j, pixel x to be shown and row blueline R2The distance between be k, wherein m, n, j, k are single pixel
The integral multiple of corresponding side length.
It is calculated, pixel x column to be shown and row blueline R2The yield value of intersection location X1Pixel x column to be shown and row blueline R3The yield value of intersection location X2Therefore, the yield value of pixel x to be shown
As shown in connection with fig. 5, in above-mentioned steps S02, according to the position where pixel x to be shown, output grayscale value is obtained
The process of gray_x, specifically includes:
S024, the output grayscale value for exporting grayscale value and current line pixel for obtaining pixel x previous row pixel to be shown, are looked into
The first grayscale table in first side position reason region or the second grayscale table of second side processing region are looked for, obtains output grayscale value gray_
x；Wherein, the first grayscale table in system and the interior record of the second grayscale table have corresponding to the output grayscale value of adjacent rows pixel
Lookup value, can be in corresponding grayscale table according to the output grayscale value of the output grayscale value of previous row pixel and current line pixel
Corresponding lookup value is found, which is the output grayscale value of pixel x to be shown.
First grayscale table and the second grayscale table can be used for the output grayscale value and current line subregion according to previous row subregion
It exports grayscale value and searches the output grayscale value for determining current pixel.In the first grayscale table and the second grayscale table, with previous row
The output grayscale value of pixel and the output grayscale value of current line pixel are as lookup node, also, the output of previous row pixel is grey
Rank value range and the output grayscale value range of current line pixel are divided into multiple grayscale subregions, at least one grayscale subregion includes
Multiple grayscale values, and in the grayscale subregion comprising multiple grayscale values, the output grayscale value with one-row pixels may be considered
It changes linearly.
According to this set-up mode, step S024 is specifically included:
S0241, judge pixel x to be shown previous row pixel output grayscale value and current line pixel output grayscale value
At the endpoint for whether all falling within grayscale subregion；
S0242, if so, being looked into corresponding to the output grayscale value of previous row pixel and the output grayscale value of current line pixel
Looking for value is to export grayscale value gray_x；Otherwise,
Two ends of the grayscale subregion where the output grayscale value of the previous row pixel of S0243, acquisition pixel x to be shown
Point, current line pixel output grayscale value where grayscale subregion two endpoints corresponding to lookup value, and inserted according to linear
The output grayscale value gray_x of pixel x to be shown is calculated in value method.
As one of embodiment, the gray number that each grayscale subregion is included is preferably identical.Such as Fig. 6 institute
Show, in the present embodiment, the output grayscale of previous row pixel and the output grayscale of current line pixel are evenly divided for by 255 grayscale
For 8 grayscale subregions.For the pixel near boundary line C, according to the output grayscale value and current line picture of pixel previous row pixel
The output grayscale value of element, is searched in corresponding first grayscale table or the second grayscale table, the output ash of current one-row pixels
The output grayscale value of rank value and current line pixel is one in the endpoint of grayscale subregion, such as respectively 32,64, then can be with
Immediately arrive at the output grayscale value gray_x that lookup value e is pixel x to be shown.But in the output grayscale value of previous row pixel and
When the output grayscale value of current line pixel is not necessarily all one in the endpoint of grayscale subregion, then need to carry out with linear interpolation method
It calculates, specifically, it is assumed that the output grayscale value of the previous row pixel of pixel x to be shown and the output grayscale value point of current line pixel
Not Wei x1, x2, x1 is between adjacent two grayscale endpoint values Xa, Xb, and x2 is between adjacent two grayscale endpoint values Ya, Yb
Between, i.e. Xa < x1 < Xb, Ya < x2 < Yb, (the output grayscale value of previous row pixel, the output grayscale value of current line pixel)
Respectively (Xa, Ya), (Xb, Ya), (Xa, Yb), (Xb, Yb), it is corresponding output grayscale value gray_x lookup value be respectively e,
F, g, h, then by the output ash that the output grayscale of previous row pixel is x1, the output grayscale of current line pixel is Ya is calculated
Rank valueThe output grayscale of previous row pixel is x1, the output of current line pixel is grey
Rank is the output grayscale value of YbThe output ash of pixel x to be shown is calculated
Rank value
Therefore, the actual gray value G_x=gain_x*gray_x of the pixel x to be shown finally obtained, according to the practical ash
Rank value G_x drives the pixel x to be shown with corresponding data voltage.After processing, the grayscale of the pixel near the C of line of demarcation
Nature transition may be implemented, so that the transition wire between the image data of two sides is able to desalinate and be no longer easy to be perceived as.
In conclusion region of the present invention in image data boundary line two sides, true respectively according to the position where each pixel
The output grayscale value of fixed its yield value and image data, integration gain value is adjusted output grayscale value, thus according to adjustment
As a result it treats display pixel to be driven, the boundary line of image data separated place can be desalinated to the maximum extent, optimize display
Effect.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (10)
1. a kind of image processing method of display panel, which is characterized in that the image data of display panel is divided at least two
Adjacent sub-viewing areas is shown that the image processing method of the display panel includes:
On the basis of the line of demarcation of two neighboring sub-viewing areas, from the line of demarcation respectively towards neither ipsilateral selection first side position
Manage region and second side processing region；
Determine the position where pixel (x) to be shown manages region or second side processing region in the first side position, and root
According to the position where the pixel (x) to be shown, the yield value (gain_x) and output grayscale of the pixel (x) to be shown are obtained
It is worth (gray_x)；
The yield value (gain_x) of the pixel to be shown and the product of output grayscale value (gray_x) are calculated, is obtained described to aobvious
Show the actual gray value (G_x) of pixel, and electric to the pixel write data to be shown according to the actual gray value (G_x)
Pressure.
2. the image processing method of display panel according to claim 1, which is characterized in that
The determination pixel (x) to be shown manages region or the position where second side processing region in the first side position,
It include: that first side position reason region and second side processing region are respectively divided into M row, N column subregion, the line of demarcation
It is parallel with capable direction, wherein M, N are the integer not less than 2；
The position according to where the pixel (x) to be shown, obtains the yield value (gain_ of the pixel (x) to be shown
X), comprising: the line number and columns of the subregion where the pixel (x) to be shown search first side position reason region
The gain table of gain table or second side processing region obtains the yield value (gain_x) of the pixel (x) to be shown.
3. the image processing method of display panel according to claim 2, which is characterized in that the length of each subregion
Degree/width is the integral multiple of the length/width of single pixel.
4. the image processing method of display panel according to claim 3, which is characterized in that at least one subregion
Length/width is greater than the length/width of single pixel, and is greater than described in the length/width of single pixel in length/width and divides
In area, the yield value edge in each region in the gain table in first side position reason region and the gain table of second side processing region
Line direction and column direction change linearly.
5. the image processing method of display panel according to claim 2, which is characterized in that at least one of M, N are less
In 8.
6. the image processing method of display panel according to claim 4, which is characterized in that the first side position manages region
Gain table in, record has row blueline, the column blueline intersection point position of each subregion in the gain table of second side processing region
The yield value set；
The position according to where the pixel (x) to be shown, obtains the yield value (gain_ of the pixel (x) to be shown
X), comprising:
Judge whether the pixel (x) to be shown is expert at blueline, column blueline intersection position；
If so, the corresponding yield value in the intersection position of row blueline, column blueline is the increasing of the pixel (x) to be shown
Benefit value (gain_x)；Otherwise,
The pixel (x) to be shown is enclosed four different row bluelines being located therein, column blueline intersection position institute by acquisition
Corresponding yield value, and the yield value (gain_x) of the pixel (x) to be shown is calculated according to linear interpolation method.
7. according to the image processing method of any display panel of claim 2-6, which is characterized in that described according to
Position where pixel (x) to be shown obtains output grayscale value (gray_x), comprising:
The output grayscale value for obtaining the output grayscale value and current line pixel of pixel (x) the previous row pixel to be shown, is searched
The first grayscale table in first side position reason region or the second grayscale table of second side processing region, obtain output grayscale value
(gray_x)；
Wherein, the first grayscale table and the second grayscale table record have corresponding to the output grayscale value of adjacent rows pixel
Lookup value, the lookup value are the output grayscale value of the pixel (x) to be shown.
8. the image processing method of display panel according to claim 7, which is characterized in that the first grayscale table and institute
It states in the second grayscale table, the output grayscale value of one-row pixels and the output grayscale value of current line pixel are saved as lookup in the past
Point, the output grayscale value range of previous row pixel and the output grayscale value range of current line pixel are divided into multiple grayscale point
Area, at least one described grayscale subregion include multiple grayscale values, and in the grayscale subregion comprising multiple grayscale values, same
The output grayscale value of row pixel changes linearly.
9. the image processing method of display panel according to claim 8, which is characterized in that described according to described to be shown
Position where pixel (x) obtains output grayscale value (gray_x), further includes:
Judge the previous row pixel of the pixel (x) to be shown output grayscale value and current line pixel output grayscale value whether
At the endpoint for all falling within grayscale subregion；
If so, lookup value corresponding to the output grayscale value of previous row pixel and the output grayscale value of current line pixel is as defeated
Grayscale value (gray_x) out；Otherwise,
Obtain the previous row pixel of the pixel (x) to be shown output grayscale value where grayscale subregion two endpoints, when
Lookup value corresponding to two endpoints of the grayscale subregion where the output grayscale value for the pixel that moves ahead, and according to linear interpolation method meter
Calculation obtains the output grayscale value (gray_x) of the pixel (x) to be shown.
10. the image processing method of display panel according to claim 8, which is characterized in that each grayscale subregion is wrapped
The gray number contained is identical.
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| CN109658876A (en) * | 2019-02-28 | 2019-04-19 | 京东方科技集团股份有限公司 | Image display processing method and device, display device and storage medium |
| CN110211534A (en) * | 2019-05-20 | 2019-09-06 | 武汉华星光电半导体显示技术有限公司 | Image display method, device, controller and storage medium |
| CN111312144A (en) * | 2020-03-03 | 2020-06-19 | 昆山国显光电有限公司 | Display panel, display control method of display panel and display control device |
| CN111650995A (en) * | 2020-05-21 | 2020-09-11 | Oppo广东移动通信有限公司 | Image display method and device, mobile terminal and storage medium |
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