CN109637431A - A kind of display compensation method of display panel - Google Patents
A kind of display compensation method of display panel Download PDFInfo
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- CN109637431A CN109637431A CN201910136836.7A CN201910136836A CN109637431A CN 109637431 A CN109637431 A CN 109637431A CN 201910136836 A CN201910136836 A CN 201910136836A CN 109637431 A CN109637431 A CN 109637431A
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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
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Abstract
The present invention provides a kind of display compensation method of display panel, comprising: the first random access memory of setting and the second random access memory；The first display compensation model is executed in the first period；The second display compensation model is executed in the second period, the first period and the second period are mutually indepedent；Wherein, executing the first display compensation model includes reading the first offset data and storing the first offset data in the second random access memory；Executing the second display compensation model includes reading the second offset data and storing the second offset data in the first random access memory and the second random access memory.In the present invention, first random access memory and the second random access memory store the second offset data jointly, second offset data contains much information in the capacity of the second random access memory, to compensate, display is uneven, optimizes display effect, it avoids leading to poor display effect using the compensation of the first offset data, the information content of the first offset data is less than or equal to the capacity of the second random access memory.
Description
[technical field]
The present invention relates to the display compensation methodes of field of display technology more particularly to a kind of display panel.
[background technique]
In the prior art, display panel tends to be lightening, and random access memory therein is set as small size/low capacity；
Display panel shows image using the single-stage grayscale in 0 to 255 grade of grayscale, has very little for the offset data of single-stage grayscale
Information content, random access memory can read and store the offset data for single-stage grayscale, and display panel can be directed to single-stage
Grayscale, which executes, to be compensated and realizes that single-stage grayscale is shown uniformly.But display panel is using the multistage ash in 0 to 255 grade of grayscale
Rank shows image, has very big information content for the offset data of multistage grayscale, random access memory cannot read and store
For the offset data of multistage grayscale, display panel cannot execute for multistage grayscale and compensate and realize that multistage grayscale is shown
It is even.
[summary of the invention]
In order to solve the above technical problem, the present invention provides a kind of display compensation methodes of display panel.
A kind of display compensation method of display panel includes:
First random access memory and the second random access memory are set；
The first display compensation model is executed in the first period；
The second display compensation model is executed in the second period, first period and second period are mutually indepedent；
Wherein, the first display compensation model that executes includes reading the first offset data and in second random storage
Device stores first offset data；
It is described execute the second display compensation model include read the second offset data and in first random access memory and
Second random access memory stores second offset data.
Optionally, the information content of first offset data is less than or equal to the capacity of second random access memory,
Second offset data contains much information in the capacity of second random access memory.
Optionally, the display compensation method further include:
Flash memories are set；
Before first period and second period, first offset data and the second compensation number are received
According in flash memories storage first offset data and second offset data.
Optionally, the display compensation method further include:
Before first period and second period, image data is received；
The first display compensation model that executes further includes storing described image data in first random access memory.
Optionally, described image data include gray number amount and greyscale level；
The display compensation method further include:
Before first period and second period, determines the grayscale quantity and the greyscale level, judge needle
To the information content of the third offset data of the grayscale quantity and the greyscale level.
Optionally, the display compensation method further include:
When the information content for judging the third offset data is less than or equal to the capacity of second random access memory,
First enable signal starting the first display compensation model is set；
Wherein, first offset data includes the third offset data.
Optionally, the display compensation method further include:
When judging the containing much information in the capacity of second random access memory of the third offset data, and be less than or
When person is equal to the capacity and the sum of the capacity of second random access memory of first random access memory, the enabled letter of setting second
Number starting it is described second display compensation model；
Wherein, second offset data includes the third offset data.
Optionally, the display compensation method further include:
When judging the containing much information in the capacity and described second of first random access memory of the third offset data
When the sum of capacity of random access memory, the second enable signal of setting starts the second display compensation model；
Wherein, second offset data includes a part of the third offset data.
Optionally, the display compensation method further include:
After first period, described image data are corrected according to first offset data；
After second period, described image data are corrected according to second offset data.
Optionally, the display compensation method further include:
After first period, the first gamma factor is set, according to first gamma factor and described image data
Display brightness is set；
After second period, the second gamma factor is set, according to second gamma factor and described image data
Display brightness is set.
In the present invention, the first random access memory, the second random access memory may include in display chip.First is random
The sum of the capacity of memory and the capacity of the second random access memory are greater than the capacity of the second random access memory；Second random access memory
The first offset data is stored, the information content of the first offset data is less than or equal to the capacity of the second random access memory；First with
Machine memory and the second random access memory store the second offset data jointly, the second offset data contain much information in second with
The capacity of machine memory.When the first offset data is adapted to compensate for, display chip reads the first offset data, and second deposits at random
Reservoir stores the first offset data, and to compensate, display is uneven, optimizes display effect.When the first offset data is not suitable for mending
Repay, when the second offset data is adapted to compensate for, display chip reads the second offset data, the first random access memory and second with
Machine memory stores the second offset data jointly, to compensate display unevenness, optimization display effect, avoids using the first compensation number
Lead to poor display effect according to compensation.Here it makes full use of the first random access memory and the second random access memory to store second to mend
Data are repaid, avoid the first random access memory or the second random access memory idle.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of flow chart of the display compensation method of display panel in the embodiment of the present invention；
Fig. 2 is a kind of module map of the display compensation device of display panel in the embodiment of the present invention；
Fig. 3 is a kind of structure chart of display panel in the embodiment of the present invention；
Fig. 4 is the structure chart of another display panel in the embodiment of the present invention；
Fig. 5 is a kind of timing diagram of the display compensation method of display panel in the embodiment of the present invention；
Fig. 6 is the timing diagram of the display compensation method of another display panel in the embodiment of the present invention；
Fig. 7 is the schematic diagram of the first offset data in the embodiment of the present invention；
Fig. 8 is the schematic diagram of the second offset data in the embodiment of the present invention；
Fig. 9 is the flow chart of the display compensation method of another display panel in the embodiment of the present invention；
Figure 10 is the flow chart of the display compensation method of another display panel in the embodiment of the present invention；
Figure 11 is the flow chart of the display compensation method of another display panel in the embodiment of the present invention.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It will be appreciated that though device may be described in embodiments of the present invention using term first, second etc., but these
Device should not necessarily be limited by these terms.These terms are only used to for device being distinguished from each other out.For example, not departing from the embodiment of the present invention
In the case where range, first device can also be referred to as second device, and similarly, second device can also be referred to as the first dress
It sets.
The embodiment of the present invention provides a kind of display compensation method of display panel.
Fig. 1 is a kind of flow chart of the display compensation method of display panel in the embodiment of the present invention；Fig. 2 is implementation of the present invention
A kind of module map of the display compensation device of display panel in example.
As shown in Figure 1, 2, the display compensation method 100 of a kind of display panel includes:
Step 110, the first random access memory 212A and the second random access memory 212B is set；
Step 120A executes the first display compensation model M1 in the first period T1；
Step 120B executes the second display compensation model M2, the first period T1 and the second period T2 phase in the second period T2
It is mutually independent；
Wherein, executing the first display compensation model M1 includes reading the first offset data D1 and in the second random access memory
212B stores the first offset data D1；
Execute the second display compensation model M2 include read the second offset data D2 and in the first random access memory 212A and
Second random access memory 212B stores the second offset data D2.
As shown in Fig. 2, a kind of display compensation device 200 of display panel includes display chip 210, display chip 210 can
To include processor 211, the first random access memory 212A and the second random access memory 212B.Optionally, in display chip 210
In, the first random access memory 212A is connect with processor 211, and the second random access memory 212B is connect with processor 211.First
Period T1, in display chip 210, the second random access memory 212B reads and stores the first offset data D1；After this,
Processor 211 reads the first offset data D1 immediately and executes compensation according to the first offset data D1.In the second period T2,
In display chip 210, the first random access memory 212A and the second random access memory 212B read jointly and store the second benefit
Repay data D2；After this, processor 211 reads the second offset data D2 immediately and executes benefit according to the second offset data D2
It repays.
In embodiments of the present invention, the first random access memory 212A, the second random access memory 212B may include in display
In chip 210.It is random that the sum of capacity of the capacity of first random access memory 212A and the second random access memory 212B is greater than second
The capacity of memory 212B；Second random access memory 212B stores the first offset data, and the information content of the first offset data is less than
Or the capacity equal to the second random access memory 212B；First random access memory 212A and the second random access memory 212B are common
The second offset data is stored, the second offset data contains much information in the capacity of the second random access memory 212B.When the first compensation
When data are adapted to compensate for, in display chip 210, the second random access memory 212B reads and stores the first offset data,
To compensate, display is uneven, optimizes display effect.When the first offset data is not suitable for compensation, the second offset data is suitable for mending
When repaying, in display chip 210, the first random access memory 212A and the second random access memory 212B read and store jointly
Second offset data avoids leading to display effect using the compensation of the first offset data to compensate display unevenness, optimization display effect
Fruit is bad.Make full use of the first random access memory 212A and the second random access memory 212B to store the second offset data here,
Avoid the first random access memory 212A or the second random access memory 212B idle.
Fig. 3 is a kind of structure chart of display panel in the embodiment of the present invention；Fig. 4 is that another in the embodiment of the present invention is shown
The structure chart of panel.
As shown in figure 3, a kind of display panel 300 includes viewing area AA and rim area NA, rim area NA surrounds viewing area
AA；Display panel 300 further includes display chip 210, pixel array, a plurality of signal wire, and display chip 210 is located at rim area NA's
Downside, pixel array are located at viewing area AA, and a plurality of signal wire is located at viewing area AA and rim area NA；Display chip 210 passes through
A plurality of signal wire driving pixel array is shown；The first random access memory 212A and the second random storage in display chip 210
Device 212B is set to the downside of rim area NA, reads and stores offset data.As shown in figure 4, another display panel 300 wraps
Viewing area AA, rim area NA and flexible printed circuit board FPC are included, rim area NA surrounds viewing area AA, flexible printed circuit board
FPC is connect with the downside of rim area NA；Display panel 300 further includes display chip 210, pixel array, a plurality of signal wire, display
Chip 210 is located at flexible printed circuit board FPC, and pixel array is located at viewing area AA, and a plurality of signal wire is located at viewing area AA, frame
Area NA and flexible printed circuit board FPC；Display chip 210 drives pixel array to show by a plurality of signal wire；Display chip
The first random access memory 212A and the second random access memory 212B in 210 are set on flexible printed circuit board FPC, are read
And store offset data.Wherein, the type of the pixel array of display panel 300 is not construed as limiting, such as Organic Light Emitting Diode,
The pixel array of liquid crystal optics effect, Electronic Paper or light emitting diode with quantum dots.
In embodiments of the present invention, the first random access memory 212A and the second random access memory 212B store second jointly
Offset data avoids the size for expanding display chip 210 from increasing by first the second random access memory of random access memory 212A/ 212B's
Capacity, the second offset data of storage, will not expand the size of the downside of rim area NA or the ruler of flexible printed circuit board FPC
It is very little.
Fig. 5 is a kind of timing diagram of the display compensation method of display panel in the embodiment of the present invention；Fig. 6 is implementation of the present invention
The timing diagram of the display compensation method of another display panel in example.
As shown in Figure 5,6, the first period T1 and the second period T2 are mutually indepedent, and the first display compensation model M1, second show
Show that compensation model M2 timesharing executes.As shown in figure 5, the first period T1 exists in a kind of display compensation method 100 of display panel
Before second period T2, first display compensation model M1 first carry out and second display compensation model M2 in rear execution.Such as Fig. 6 institute
Show, in the display compensation method 100 of another display panel, the second period T2 is before the first period T1, the second display compensation
Mode M2 first carry out and first display compensation model M1 in rear execution.Above-mentioned timing is example, the first period T1, second
The sequencing of period T2 is not construed as limiting.First period T1, the second period T2 can be with circulating repetitions, for example, the first display compensation
Mode M1, second display compensation model M2, first display compensation model M1, second display compensation model M2 ..., first display
Compensation model M1, the second display compensation model M2 are successively executed.First period T1, the second period T2 can be repeated arbitrarily, for example,
First display compensation model M1, the first display compensation model M1, the second display compensation model M2, the first display compensation model
M1 ..., second display compensation model M2, second display compensation model M2 successively execute.
Fig. 7 is the schematic diagram of the first offset data in the embodiment of the present invention；Fig. 8 is the second compensation number in the embodiment of the present invention
According to schematic diagram.
As shown in fig. 7, the first offset data D1 includes M penalty coefficient C, M penalty coefficient C is for being directed to M grayscale
Compensation, the 1st penalty coefficient C1For being directed to 0 grade of gray scale compensation, the 2nd penalty coefficient C2For being directed to 1 grade of gray scale compensation, M
A penalty coefficient CMFor being directed to M-1 grades of gray scale compensations, M is greater than 0 and the integer less than 255.As shown in figure 8, second mends
Repaying data D2 includes N number of penalty coefficient C, and N number of penalty coefficient C is used to be directed to N number of gray scale compensation, the 1st penalty coefficient C1For
For 0 grade of gray scale compensation, the 2nd penalty coefficient C2For being directed to 1 grade of gray scale compensation, n-th penalty coefficient CNFor being directed to N-1
Grade gray scale compensation, N are greater than M and are less than or equal to 255 integer.Wherein, the first offset data D1 is less than the second compensation
Data D2, M grayscale are less than N number of grayscale；0 grade of grayscale, 1 grade of grayscale, M-1 grades of grayscale in M grayscale, 0 grade in N number of grayscale
Grayscale, 1 grade of grayscale, N-1 grades of grayscale, only example；The greyscale level in greyscale level, N number of grayscale in M grayscale does not limit
It is fixed.The information content of first offset data D1 is less than or equal to the capacity of the second random access memory 212B, is suitable for for a small amount of
Gray scale compensation.Second offset data D2's contains much information in the capacity of the second random access memory 212B, is suitable for for a large amount of ashes
Rank compensation.
In embodiments of the present invention, in the first period T1, in display chip 210, the second random access memory 212B is read
And the information content of the first offset data D1, the first offset data D1 is stored less than or equal to the second random access memory 212B's
Capacity is suitable for being directed to a small amount of gray scale compensation, and after this, processor 211 is immediately using the first offset data D1 for a small amount of
Grayscale executes compensation, to optimize display effect when showing a small amount of grayscale, avoids the second compensation number when showing a small amount of grayscale
It is used to compensate according to D2, the second compensation number D2 evidence had not only occupied the first random access memory 212A but also occupied the second random access memory 212B.
In the second period T2, in display chip 210, the first random access memory 212A and the second random access memory 212B are read jointly
And containing much information in the capacity of the second random access memory 212B for the second offset data D2, the second offset data D2 is stored, is fitted
For being directed to a large amount of gray scale compensations, after this, processor 211 is executed using the second offset data D2 for a large amount of grayscale immediately
Compensation is avoided when showing a large amount of grayscale to optimize display effect when showing a large amount of grayscale using the first offset data D1
Compensation leads to poor display effect.
In embodiments of the present invention, the information content of the first offset data D1 is less than or equal to the second random access memory 212B
Capacity, the second offset data D2's contains much information in the capacity of the second random access memory 212B.
In embodiments of the present invention, the information content of the first offset data D1 is less than or equal to the second random access memory 212B
Capacity, be suitable for being directed to a small amount of gray scale compensation, the second random access memory 212B stores the first offset data D1, so as to for few
Gray scale compensation display unevenness, optimization display effect are measured, is avoided for a small amount of grayscale using the second offset data D2 compensation, the second benefit
Data D2 is repaid not only to have occupied the first random access memory 212A but also occupied the second random access memory 212B.The information of second offset data D2
Amount be greater than the second random access memory 212B capacity, be suitable for be directed to a large amount of gray scale compensations, the first random access memory 212A and
Second random access memory 212B stores the second offset data D2 jointly, so that uneven for the display of a large amount of gray scale compensations, optimization is aobvious
Show effect, avoids leading to poor display effect using the first offset data D1 compensation for a large amount of grayscale.
Fig. 9 is the flow chart of the display compensation method of another display panel in the embodiment of the present invention.
As shown in Fig. 2,9, the display compensation method 100 of display panel further include:
Step 112, flash memories 220 are set；
Step 114, before the first period T1 and the second period T2, the first offset data D1 and the second offset data are received
D2 stores the first offset data D1 and the second offset data D2 in flash memories 220.
In embodiments of the present invention, the display compensation device 200 of display panel further includes flash memories 220, and flash memory is deposited
Reservoir 220 is connect with display chip 210, and flash memories 220 are set to the flexible print circuit of display panel 300 shown in Fig. 3
On plate FPC.Before factory, display panel 300 in factory by compensating.When being compensated in factory, compensation system and display panel in factory
300 connections.Display panel 300 shows test image.Compensation system shooting test image and the ash for test image in factory
Rank generates display offset data.Compensation system sends display offset data to display panel 300 in factory.Display panel 300 receives
Show offset data.In display panel 300, the storage display offset data of flash memories 220.Show that offset data includes the
One offset data D1, the second offset data D2.For example, display offset data includes 256 compensation for 0 to 255 grade of grayscale
Coefficient, the first offset data D1 include the M penalty coefficient for 0 to M-1 grade of grayscale, and the second offset data D2 includes being directed to 0
To N number of penalty coefficient of N-1 grades of grayscale, M is greater than 0 and the integer less than 255, and N is greater than M and is less than or equal to
255 integer.After factory, in display panel 300, flash memories 220 store the compensation of the first offset data D1 and second
Data D2, so that the second random access memory 212B is read and stores the first offset data D1 or the first random access memory 212A
And second random access memory 212B read jointly and store the second offset data D2.
As shown in figure 9, the display compensation method 100 of display panel further include:
Step 116, before the first period T1 and the second period T2, image data is received；
Wherein, executing the first display compensation model M1 further includes storing image data in the first random access memory 212A.
In embodiments of the present invention, display panel 300 shown in Fig. 3 is contained in display device, such as smart phone.Display
Device further includes central processing unit.Central processing unit is connect with display chip 210.Central processing unit obtains image data, and
Image data is sent to display chip 210.Display chip 210 receives image data, and processor 211 handles image data, so as to
Display panel 300 shows image.Image data includes the grayscale quantity of image.When the grayscale quantity of image is seldom, image does not have
It changes or changes seldom；At this point, display chip 210 receives image data, the first random access memory 212A stores picture number
According to so that processing image data, quickening display panel 300 show image to processor 211 immediately.When the grayscale quantity of image is very big
When, image change is very big；At this point, display chip 210 receives image data, processor 211 handles image data, avoids picture number
According to the first random access memory 212A is occupied, so that the first random access memory 212A and the second random access memory 212B are stored jointly
Second offset data D2.
As shown in figure 9, image data includes grayscale quantity and greyscale level；The display compensation method 100 of display panel is also
Include:
Step 118, before the first period T1 and the second period T2, grayscale quantity and greyscale level are determined, judgement is for ash
The information content of the third offset data D3 of order amount and greyscale level.
In embodiments of the present invention, display chip 210 determines the grayscale quantity and grayscale of image after receiving image data
Grade, and judge the information content of the third offset data D3 for grayscale quantity and greyscale level, to be compensated according to third
The the first display compensation model M1 of information content starting or the second display compensation model M2 of data D3.
For example, display chip 210 determine image include 0 to 31 grade of grayscale, judge third offset data D3 include for 0 to
32 penalty coefficients and information content of 31 grades of grayscale are less than or equal to the capacity of the second random access memory 212B, start accordingly
First display compensation model M1；Display chip 210 determines that image includes 0 to 63 grade of grayscale, judges that third offset data D3 includes
It 64 penalty coefficients for 0 to 63 grade of grayscale and contains much information in the capacity of the second random access memory 212B, starts accordingly
Second display compensation model M2.
In embodiments of the present invention, the display compensation method 100 of display panel further include: when judging third offset data D3
Information content be less than or equal to the second random access memory 212B capacity when, setting the first enable signal start first display mend
Repay mode M1；Wherein, the first offset data D1 includes third offset data D3.
In embodiments of the present invention, the display compensation device 200 of display panel further includes enabled controller 230, enables control
Device 230 processed is connect with display chip 210, and enabled controller 230 is connect with flash memories 220.Display chip 210 is receiving figure
As after data, determining the grayscale quantity and greyscale level of image, judgement is directed to the third offset data D3 of all grayscale of image,
Make enabled controller when the information content of third offset data D3 is less than or equal to the capacity of the second random access memory 212B
230 the first enable signals of setting；Enabled controller 230 sends the first enable signal, flash memories to flash memories 220
220 receive the first enable signal and the second random access memory 212B are allowed to read data, and the second random access memory 212B is read
And storing the first offset data D1, the first offset data D1 includes third offset data D3, and the second random access memory 212B is deposited
Third offset data D3 is stored up, so as to, optimization display effect uneven for the display of all gray scale compensations of image.
In embodiments of the present invention, the display compensation method 100 of display panel further include: when judging third offset data D3
Contain much information in the capacity of the second random access memory 212B, and be less than or equal to the first random access memory 212A capacity
When with the sum of the capacity of the second random access memory 212B, the second enable signal of setting starts the second display compensation model M2；Wherein,
Second offset data D2 includes third offset data D3.
In embodiments of the present invention, display chip 210 determines the grayscale quantity and grayscale of image after receiving image data
Grade, judgement is directed to the third offset data D3 of all grayscale of image, in containing much information in second for third offset data D3
The capacity of random access memory 212B and the capacity and the second random access memory for being less than or equal to the first random access memory 212A
Make enabled controller 230 that second enable signal is set when the sum of capacity of 212B；Controller 230 is enabled to flash memories
220 send the second enable signals, flash memories 220 receive the second enable signal and allow the first random access memory 212A with
And second random access memory 212B read data jointly, the first random access memory 212A and the second random access memory 212B are common
Reading and storing the second offset data D2, the second offset data D2 includes third offset data D3, the first random access memory
212A and the second random access memory 212B store third offset data D3 jointly, so that all gray scale compensations for image are aobvious
Show uneven, optimization display effect.
In embodiments of the present invention, the display compensation method 100 of display panel further include: when judging third offset data D3
Contain much information in the first random access memory 212A capacity and the second random access memory 212B the sum of capacity when, setting second
The second display of enable signal starting compensation model M2；Wherein, the second offset data D2 includes a portion of third offset data D3
Point.
In embodiments of the present invention, display chip 210 determines the grayscale quantity and grayscale of image after receiving image data
Grade, judgement is directed to the third offset data D3 of all grayscale of image, in containing much information in first for third offset data D3
Make the enabled setting of controller 230 second when the sum of the capacity of the capacity of random access memory 212A and the second random access memory 212B
Enable signal；Enabled controller 230 sends the second enable signal to flash memories 220, and flash memories 220, which receive second, to be made
Can signal and allow the first random access memory 212A and the second random access memory 212B read data jointly, first deposits at random
Reservoir 212A and the second random access memory 212B reads jointly and stores the second offset data D2, the second offset data D2 packet
A part of third offset data D3 is included, the first random access memory 212A and the second random access memory 212B store jointly
A part of three offset data D3, a part of third offset data D3 are suitable for compensating for the part gray-scale of image,
For the part gray-scale of image compensation display unevenness, utmostly to optimize display effect.
Figure 10 is the flow chart of the display compensation method of another display panel in the embodiment of the present invention；Figure 11 is the present invention
The flow chart of the display compensation method of another display panel in embodiment.
As shown in Figure 10,11, the display compensation method 100 of display panel further include:
Step 130A, after the first period T1, according to the first offset data D1 image correcting data；
Step 130B, after the second period T2, according to the second offset data D2 image correcting data.
In embodiments of the present invention, after the first period T1, in display chip 210, processor 211 reads the first compensation
Data D1, and according to the first offset data D1 image correcting data, to be shown uniformly using image data；In the first period
After T1, in display chip 210, processor 211 reads the second offset data D2, and according to the second offset data D2 correction chart
As data, to be shown uniformly using image data.
As shown in Figure 10,11, the display compensation method 100 of display panel further include:
Step 140A is arranged the first gamma factor, is set according to the first gamma factor and image data after the first period T1
Set display brightness；
Step 140B is arranged the second gamma factor, is set according to the second gamma factor and image data after the second period T2
Set display brightness.
In embodiments of the present invention, the display compensation device 200 of display panel shown in Fig. 2 further includes gamma circuit 240, gal
Horse circuit 240 is connect with display chip 210, and gamma circuit 240 is connect with display panel.In first T1/ period, T2 the second period
Afterwards, display chip 210 sends the image data of correction to gamma circuit 240；Gamma circuit 240 receives the image data of correction,
First/second gamma factor is set, according to the image data of first/second gamma factor and correction, display panel is arranged aobvious
Show brightness, so that display brightness is uniform.
The present invention provides a kind of display compensation method of display panel, comprising: setting the first random access memory and second with
Machine memory；The first display compensation model is executed in the first period；In the second period execution the second display compensation model, first
Section is mutually indepedent with the second period；Wherein, execute first display compensation model include read the first offset data and second with
Machine memory stores the first offset data；It is including the second offset data of reading and random first to execute the second display compensation model
Memory and the second random access memory store the second offset data.In the present invention, the first random access memory and second random
Memory stores the second offset data jointly, and the second offset data contains much information in the capacity of the second random access memory, so as to
Compensation display is uneven, optimizes display effect, avoids leading to poor display effect using the compensation of the first offset data, the first compensation number
According to information content be less than or equal to the second random access memory capacity.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of display compensation method of display panel, which is characterized in that the display compensation method includes:
First random access memory and the second random access memory are set；
The first display compensation model is executed in the first period；
The second display compensation model is executed in the second period, first period and second period are mutually indepedent；
Wherein, the first display compensation model that executes includes reading the first offset data and depositing in second random access memory
Store up first offset data；
The second display compensation model that executes includes reading the second offset data and in first random access memory and described
Second random access memory stores second offset data.
2. display compensation method according to claim 1, which is characterized in that the information content of first offset data is less than
Or the capacity equal to second random access memory, second offset data contain much information in second random storage
The capacity of device.
3. display compensation method according to claim 1, which is characterized in that the display compensation method further include:
Flash memories are set；
Before first period and second period, first offset data and second offset data are received,
The flash memories store first offset data and second offset data.
4. display compensation method according to claim 1, which is characterized in that the display compensation method further include:
Before first period and second period, image data is received；
The first display compensation model that executes further includes storing described image data in first random access memory.
5. display compensation method according to claim 4, which is characterized in that described image data include gray number amount and ash
Rank grade；
The display compensation method further include:
Before first period and second period, the grayscale quantity and the greyscale level are determined, judgement is directed to institute
State the information content of the third offset data of grayscale quantity and the greyscale level.
6. display compensation method according to claim 5, which is characterized in that the display compensation method further include:
When the information content for judging the third offset data is less than or equal to the capacity of second random access memory, setting
First enable signal starting the first display compensation model；
Wherein, first offset data includes the third offset data.
7. display compensation method according to claim 5, which is characterized in that the display compensation method further include:
When judging the containing much information in the capacity of second random access memory of the third offset data, and it is less than or waits
When the capacity and the sum of the capacity of second random access memory of first random access memory, the second enable signal of setting is opened
Move the second display compensation model；
Wherein, second offset data includes the third offset data.
8. display compensation method according to claim 5, which is characterized in that the display compensation method further include:
When the capacity to contain much information in first random access memory and described second that judge the third offset data are random
When the sum of capacity of memory, the second enable signal of setting starts the second display compensation model；
Wherein, second offset data includes a part of the third offset data.
9. the display compensation method according to any one of claim 6 to 8, which is characterized in that the display compensation side
Method further include:
After first period, described image data are corrected according to first offset data；
After second period, described image data are corrected according to second offset data.
10. display compensation method according to claim 9, which is characterized in that the display compensation method further include:
After first period, the first gamma factor is set, is arranged according to first gamma factor and described image data
Display brightness；
After second period, the second gamma factor is set, is arranged according to second gamma factor and described image data
Display brightness.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599074A (en) * | 2020-05-28 | 2021-04-02 | 西安诺瓦星云科技股份有限公司 | Display module correction method, device and system and display screen correction method and device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001075522A (en) * | 1999-08-31 | 2001-03-23 | Sony Corp | Gain control circuit and display device using the circuit |
| CN101042853A (en) * | 2006-03-23 | 2007-09-26 | 富士通株式会社 | Image processing apparatus |
| CN101261821A (en) * | 2008-05-08 | 2008-09-10 | 友达光电股份有限公司 | Gamma curve compensation method, gamma curve compensation circuit and display system |
| US20120206504A1 (en) * | 2011-02-14 | 2012-08-16 | Samsung Electronics Co., Ltd. | Compensation table generating system, display apparatus having brightness compensation table, and method of generating compensation table |
| CN104064141A (en) * | 2014-06-12 | 2014-09-24 | 京东方科技集团股份有限公司 | Display panel optical compensation device, display panel and optical compensation method |
| CN104424887A (en) * | 2013-08-19 | 2015-03-18 | 乐金显示有限公司 | Organic light emitting display and method for driving the same |
| CN105280149A (en) * | 2015-11-11 | 2016-01-27 | 深圳市华星光电技术有限公司 | Mura compensation data writing apparatus and method |
| CN107068037A (en) * | 2017-05-26 | 2017-08-18 | 武汉天马微电子有限公司 | The gray scale correction method and gray scale correction device of display panel |
| CN107886920A (en) * | 2017-11-28 | 2018-04-06 | 深圳市华星光电技术有限公司 | A kind of method and system for obtaining correct Mura offset datas |
| US20180204512A1 (en) * | 2017-01-18 | 2018-07-19 | Samsung Display Co., Ltd. | Data compensating device and display device having the same |
| CN108510965A (en) * | 2018-05-03 | 2018-09-07 | 武汉天马微电子有限公司 | A kind of display brightness compensation method, apparatus and system |
| CN108806574A (en) * | 2018-04-24 | 2018-11-13 | 硅谷数模半导体（北京）有限公司 | The grayscale value of display panel determines method and device |
| CN109121002A (en) * | 2018-09-06 | 2019-01-01 | 四川长虹电器股份有限公司 | The import system and method for LCD TV OC Demura data |
| US20190051236A1 (en) * | 2017-08-08 | 2019-02-14 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Method and device for compensating brightness of amoled display panel |
-
2019
- 2019-02-25 CN CN201910136836.7A patent/CN109637431B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001075522A (en) * | 1999-08-31 | 2001-03-23 | Sony Corp | Gain control circuit and display device using the circuit |
| CN101042853A (en) * | 2006-03-23 | 2007-09-26 | 富士通株式会社 | Image processing apparatus |
| CN101261821A (en) * | 2008-05-08 | 2008-09-10 | 友达光电股份有限公司 | Gamma curve compensation method, gamma curve compensation circuit and display system |
| US20120206504A1 (en) * | 2011-02-14 | 2012-08-16 | Samsung Electronics Co., Ltd. | Compensation table generating system, display apparatus having brightness compensation table, and method of generating compensation table |
| CN104424887A (en) * | 2013-08-19 | 2015-03-18 | 乐金显示有限公司 | Organic light emitting display and method for driving the same |
| CN104064141A (en) * | 2014-06-12 | 2014-09-24 | 京东方科技集团股份有限公司 | Display panel optical compensation device, display panel and optical compensation method |
| CN105280149A (en) * | 2015-11-11 | 2016-01-27 | 深圳市华星光电技术有限公司 | Mura compensation data writing apparatus and method |
| US20180204512A1 (en) * | 2017-01-18 | 2018-07-19 | Samsung Display Co., Ltd. | Data compensating device and display device having the same |
| CN107068037A (en) * | 2017-05-26 | 2017-08-18 | 武汉天马微电子有限公司 | The gray scale correction method and gray scale correction device of display panel |
| US20190051236A1 (en) * | 2017-08-08 | 2019-02-14 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Method and device for compensating brightness of amoled display panel |
| CN107886920A (en) * | 2017-11-28 | 2018-04-06 | 深圳市华星光电技术有限公司 | A kind of method and system for obtaining correct Mura offset datas |
| CN108806574A (en) * | 2018-04-24 | 2018-11-13 | 硅谷数模半导体（北京）有限公司 | The grayscale value of display panel determines method and device |
| CN108510965A (en) * | 2018-05-03 | 2018-09-07 | 武汉天马微电子有限公司 | A kind of display brightness compensation method, apparatus and system |
| CN109121002A (en) * | 2018-09-06 | 2019-01-01 | 四川长虹电器股份有限公司 | The import system and method for LCD TV OC Demura data |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599074A (en) * | 2020-05-28 | 2021-04-02 | 西安诺瓦星云科技股份有限公司 | Display module correction method, device and system and display screen correction method and device |
| CN112599074B (en) * | 2020-05-28 | 2022-03-22 | 西安诺瓦星云科技股份有限公司 | Display module correction method, device and system and display screen correction method and device |
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|---|---|
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