CN104318893B - A kind of method and system for eliminating still image display area ghost defect - Google Patents
A kind of method and system for eliminating still image display area ghost defect Download PDFInfo
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Abstract
The invention discloses a kind of method and systems for eliminating still image display area ghost defect, applied to self-emission display apparatus, the still image display area contains at least two same type but the sub-pixel of different grayscale values, the described method includes: obtaining the first grayscale value of the sub-pixel of the corresponding reftype in the still image display area, the reftype is any one in RGB type, and first grayscale value is the maximum gray value in the grayscale value of all sub-pixels of the reftype；Determine that the second grayscale value, second grayscale value are more than or equal to first grayscale value according to first grayscale value；Driving continues to work until corresponding with reference to the compensation time with reference to sub-pixel, and close the sub-pixel that grayscale value is equal to second grayscale value, wherein, the sub-pixel for being less than second grayscale value with reference to any grayscale value that sub-pixel is the reftype, the reference compensation time is the time continued working with reference to sub-pixel, by technical solution provided by the embodiments of the present application, the picture of self-emission display apparatus can be made ghost defect problem such as occur, can be realized quick elimination.
Description
Technical field
The present invention relates to a kind of methods that image display arts more particularly to still image display area eliminate ghost defect
With system.
Background technique
Currently, the OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) of organic material preparation
Fast response time that display is shown by self-luminous, visual angle are wide, can separately be curled, fold or as wearable computer
A part and obtain very extensive application.
In OLED display, for same type of sub-pixel, if there are luminance difference between each sub-pixel,
During display, since the brightness of each sub-pixel is different, the size for the driving current that each sub-pixel needs is also different, i.e., bright
Higher sub-pixel is spent, needs driving current to be offered also bigger, therefore does not cause the heating temperature of each sub-pixel also not
It is identical, increase with the working time, leading to each sub-pixel, there are expendable aging phenomena, and then lead to each sub-pixel
All there is certain decaying in brightness, according to the brightness decay curve of sub-pixel as shown in Figure 1 it is found that same type of sub-pixel
Luminance degradation rate is simultaneously uneven, and brightness is higher, i.e. the temperature of sub-pixel is higher, therefore its aging is also faster, in turn results in
Gray-scale intensity decaying is faster, in terms of this phenomenon shows image quality, especially after tableaux shows longer period of time, this
When, it if switched over to picture, will appear the ghost of former tableaux on the picture after switching, be difficult to eliminate, influence spontaneous
The display effect of electro-optical display device.
In the prior art, since the brightness of sub-pixel and the rate of decay are directly proportional, the higher sub-pixel of brightness shows process
Middle heating temperature is higher, and aging speed is also faster, causes brightness decay faster, therefore the sub-pixel of same type is bright
When degree differs greatly, as time increases, the brightness decay gap of each sub-pixel also can be increasing, exemplary, if
There are two red sub-pixels for one tableaux, and grayscale is respectively 255 grayscale and 100 grayscale, after a hour, 255 ashes
The brightness decay of the red sub-pixel of rank is 200 grayscale, and the brightness decay of the red sub-pixel of 100 grayscale is 80 grayscale, former
The red sub-pixel of 255 grayscale has decayed 55 grayscale, and 20 grayscale and the red sub-pixel of 100 grayscale has only decayed, two red
Brightness decay difference between sub-pixels differs 35 grayscale, differs greatly, therefore, shows in particular for still picture
When, generalling use overall dynamics reduction or partial dynamic in the prior art reduces the display brightness of display sub-pixel, makes each son
Pixel is in the working condition of low-light level, to slow down luminance degradation rate's difference between same type of sub-pixel, certain
Weaken the possibility that ghost occurs in degree.
Present inventor during inventive technique scheme, it is found that following technology is asked in realizing the embodiment of the present application
Topic:
Since the essence of ghost problem is by same kind sub-pixel due to display brightness difference, thus displays temperature difference
Larger, the aging speed between sub-pixel is inconsistent, eventually lead to luminance degradation rate it is also different caused by, as long as same kind
Sub-pixel brightness decay size it is variant be easy for ghost occur, caused by this is the property of OLED display device itself,
Therefore, if only can not thoroughly eliminate ghost by the display brightness for adjusting picture, if showing a certain picture for a long time
Face is difficult to eliminate automatically after ghost occurs, so that residual forever, influences image display quality.
Summary of the invention
The embodiment of the present application purpose is to provide a kind of method and system of still image display area elimination ghost defect, solution
It has determined after showing tableaux for a long time in the prior art, self-emission display apparatus is easy to appear the ghost for being not easy to eliminate, and makes certainly
Such as there is ghost defect problem in the picture of luminous display unit, can be realized quick elimination.
The embodiment of the present application provides a kind of method for eliminating still image display area ghost defect, is applied to self-luminous
Display device, the still image display area contain at least two same type but the sub-pixel of different grayscale values, this method
It include: the first grayscale value for obtaining the sub-pixel of the corresponding reftype in the still image display area, the reftype
For any one in RGB type, first grayscale value be in the grayscale value of all sub-pixels of the reftype most
Big grayscale value；Determine that the second grayscale value, second grayscale value are more than or equal to first grayscale according to first grayscale value
Value；Driving continues to work until the corresponding reference compensation time with reference to sub-pixel, and closes grayscale value and be equal to second grayscale value
Sub-pixel, wherein it is described with reference to sub-pixel be the reftype any grayscale value be less than second grayscale value son
Pixel, the reference compensation time is the time continued working with reference to sub-pixel.
In addition, the embodiment of the present application also provides a kind of system for eliminating still image display area ghost defect, application
In self-emission display apparatus, the still image display area contains at least two same type but the sub- picture of different grayscale values
Element, this system includes the following: that the first grayscale obtains module, for obtaining the corresponding reftype in the still image display area
Sub-pixel the first grayscale value, the reftype be RGB type in any one, first grayscale value be the ginseng
Examine the maximum gray value in the grayscale value of all sub-pixels of type；Second grayscale obtains module, for according to first ash
Rank value determines that the second grayscale value, second grayscale value are more than or equal to first grayscale value；Drive module, for driving reference
Sub-pixel continues to work until the corresponding reference compensation time, and closes the sub-pixel that grayscale value is equal to second grayscale value,
In, the sub-pixel that second grayscale value is less than with reference to any grayscale value that sub-pixel is the reftype, the ginseng
Examining the compensation time is the time continued working with reference to sub-pixel.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
The second grayscale value of reftype sub-pixel is obtained according to the first grayscale value of still image reftype sub-pixel,
Wherein, the second grayscale value is more than or equal to first grayscale value, and grayscale value in reftype is then driven to be less than second ash
The sub-pixel of rank value continues to work until the corresponding reference compensation time, and closes the sub- picture that grayscale value is equal to second grayscale value
Element, in this way, for reftype, that is, type of pixel of the same race sub-pixel, since the second grayscale value is more than or equal to the first grayscale
Value, therefore, the driving grayscale value sub-pixel smaller than the second grayscale value continue working, and are equivalent to and carry out aging to this sub-pixel,
The grayscale value of the sub-pixel point of low ash rank is set to continue to decay, and the sub-pixel closing that grayscale value is equal with the second grayscale value, it is not required to
It is compensated, that is, not need to continue working carry out aging, and different sub-pixels has its corresponding reference compensation time,
The sub-pixel continued working need not just compensate again after reaching oneself corresponding reference compensation time, it can need not continue work
Make, until all sub-pixels all corresponding reference compensation time on earth, in this way, the son of same type can be made
Grayscale difference in attenuation between pixel reduces, and can make the grayscale attenuation ratio between the sub-pixel point of same type in still image
Example gradually reaches unanimity, and utilizes the ghost for eliminating display screen appearance.
Detailed description of the invention
Fig. 1 is the decaying schematic diagram of the brightness of the application prior art sub-pixel at any time；
Fig. 2 is the method flow schematic diagram that ghost defect is eliminated in the embodiment of the present application；
Fig. 3 is the method flow schematic diagram that the first grayscale value is obtained in the embodiment of the present application；
Fig. 4 is the method flow schematic diagram that still image is judged in the embodiment of the present application；
Fig. 5 is one of method flow schematic diagram for determining the compensation time in the embodiment of the present application；
Fig. 6 is the method flow schematic diagram that another in the embodiment of the present application determines the compensation time；
Fig. 7 is the system module schematic diagram that ghost defect is eliminated in the embodiment of the present application；
Fig. 8 is the schematic diagram that the first grayscale value obtains module in the embodiment of the present application；
Fig. 9 is the system module schematic diagram that still image is judged in the embodiment of the present application；
Figure 10 is the system module schematic diagram that the embodiment of the present application one of which determines the compensation time；
Figure 11 is the system module schematic diagram of another determination compensation time of the embodiment of the present application.
Specific embodiment
The embodiment of the present application is solved by providing a kind of method and system for eliminating still image display area ghost defect
In the prior art by reducing the brightness of each sub-pixel, so that sub-pixel be in low-light level and work, to reduce between sub-pixel
Attenuation ratio difference but can not really eliminate the ghost problem that still image display area occurs, make still image viewing area
If, which there is ghost problem, in domain to be eliminated.
Technical solution in the embodiment of the present application is to solve the problems, such as above-mentioned elimination still image display area ghost defect,
General thought is as follows:
Since the main reason for ghost defect is between the sub-pixel of same type since display brightness is inconsistent thus aobvious
Caused by brightness decay size during showing is also different, this programme passes through the sub-pixel point to grayscale value less than the second grayscale value
Temporal compensation is carried out, these pixels is enable to continue working accelerated ageing, and the second grayscale value is equal to grayscale value
Sub-pixel is closed, and then the size for making the grayscale between the sub-pixel of same type decay gradually reaches unanimity, and thus makes identical
Brightness decay difference between the sub-pixel of type is gradually reduced, and then the ghost of tableaux is made to disappear.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
As shown in Fig. 2, being applied to certainly the present invention provides a kind of method for eliminating still image display area ghost defect
Luminous display unit, still image display area contain at least two same type but the sub-pixel of different grayscale values, this method
Include the following steps:
S1: the first grayscale value of the sub-pixel of the corresponding reftype in the still image display area, the ginseng are obtained
Examining type is any one in RGB type, and first grayscale value is the grayscale value of all sub-pixels of the reftype
In maximum gray value；
In this step, corresponding to determine for still image, it can be whole display areas of self-emission display apparatus, such as
TV shows monochrome image or single image, is also possible to the part display area of self-emission display apparatus, aobvious for part
Show for region, such as in self-emission display apparatus, specifically, can be the television image of television for play, such as central television
The logo CCTV-1 of 1 channel of platform, other display areas can be dynamic image, but the display area of logo always show
CCTV-1, therefore can determine that the corresponding display area in logo part shows to be still image.
Current various types of display devices are mostly to use RGB color standard, and RGB color display system is by right
Red (R), green (G), the variation of blue (B) three color sub-pixels and their mutual superpositions obtain miscellaneous face
Color, RGB is the color for representing three sub-pixel of red, green, blue, this standard almost includes that human eyesight can perceive
All colours are current with most wide color system.
The sub-pixel of reftype is that the sub-pixel of any one type in RGB type can by taking red sub-pixel as an example
To find out in these grayscale values by the grayscale value for obtaining each red sub-pixel in all red sub-pixels in still image
Maximum gray value, which is the first grayscale value.
Exemplary, the sub-pixel of red type has 5, the grayscale value of this five red sub-pixels be respectively 255 grayscale,
200 grayscale, 180 grayscale, 150 grayscale and 100 grayscale are the maximum value in the grayscale value of red sub-pixel due to 255 grayscale, that
Know that the first grayscale value is 255 grayscale.
It, can be by being decoded acquisitions to display signal for the acquisition methods of grayscale value, or driven by measurement
Electric current or driving voltage etc., these grayscale acquisition methods are all based on the prior art, are not the emphasis of this programme, therefore no longer
It repeats, as long as the existing method of the grayscale value of available sub-pixel, all within the protection scope of this programme.
In practical applications, since the quantity of display device sub-pixel point is extremely huge, for the calculating for reducing grayscale value
Self-emission display apparatus can be divided into N number of region according to display brightness by amount, and N is the integer more than or equal to 2, with each area
The average gray-scale value of the sub-pixel of a certain type can be further reduced calculating data as computing object in domain, improve compensation
Efficiency, specifically, as shown in figure 3, steps are as follows:
M1: the still image is divided by N number of region, N number of region according to the brightness step of the still image
In each region include at least one same type sub-pixel, N is integer more than or equal to 2；
In the prior art, display image divide with brightness step and be mainly based upon Image Edge-Detection, identified
Brightness of image changes apparent sub-pixel point out, by brightness is identical or sub-pixel of the difference of brightness in certain threshold range
Point is divided into a region, and the treating capacity of data can be greatly reduced.
It is of course also possible to be judged according to naked eyes, the more similar display portion of brightness can be divided into a region, this
Belt transect has certain error, can bring certain influence to final ghost defect, but is not considering perfect to eliminate ghost
Under the premise of defect, quickly display area can be divided.
It is exemplary, the corresponding display area of still image is divided by 9 regions according to the brightness step of still image, point
Not Wei F1, F2, F3, F4, F5, F6, F7, F8 and F9, as shown in table 1.
Table 1
| F1 | F2 | F3 |
| F4 | F5 | F6 |
| F7 | F8 | F9 |
In this nine regions, each region includes at least one red sub-pixel.
M2: the average gray-scale value of the sub-pixel of N number of each region same type in region is obtained；
It is exemplary since each region includes at least one red sub-pixel for red sub-pixel, it is such as right
Red sub-pixel in the region F1 is handled, and several sampled points can be taken, and obtains the grayscale value of the red sub-pixel of sampled point,
And then the average value of F1 Regional Red sub-pixel is sought, which can be used as the grayscale of each red sub-pixel in the region F1
Value, and so on, the average gray-scale value of the red sub-pixel in this available 9 regions, as shown in table 2:
Table 2
| 80 | 83 | 87 |
| 90 | 100 | 94 |
| 85 | 93 | 95 |
M3: first grayscale value, institute are obtained according to the average gray-scale value of the sub-pixel of each region same type
State the maximum average gray-scale value in the average gray-scale value that the first grayscale value is the same type sub-pixel.
It is exemplary, according in table 2 in 9 regions the red sub-pixel in each region average gray-scale value, wherein maximum value
For the red sub-pixel in the former region F5, average gray-scale value 100, therefore the size of the first grayscale value is also 100.
S2: determine that the second grayscale value, second grayscale value are more than or equal to first ash according to first grayscale value
Rank value；
The size of second grayscale value can be defined freely, as long as guaranteeing to be more than or equal to the first grayscale value, in step S1
Example in, by the grayscale value of corresponding five red sub-pixels of still image it is found that the size of the first grayscale value be 255, it is right
In general image display signal, the range of grayscale value is in 0~255 grayscale, therefore the second grayscale value is only 255.
If the size of the first grayscale value is 100, the range of the second grayscale value can 100~255 grey-scale range
Interior value.
Exemplary, in this step, the size that can define the second grayscale value is 255.
S3: driving continues to work until corresponding with reference to the compensation time with reference to sub-pixel, and closes grayscale value and is equal to described the
The sub-pixel of two grayscale values, wherein described to be less than second ash with reference to any grayscale value that sub-pixel is the reftype
The sub-pixel of rank value, the reference compensation time is the time continued working with reference to sub-pixel.
Exemplary, five red sub-pixels corresponding for still image, the grayscale value of five red sub-pixels is respectively
255 grayscale, 200 grayscale, 180 grayscale, 150 grayscale and 100 grayscale, since the size of the second grayscale value is 255 grayscale, then right
For the red sub-pixel of 200 grayscale, 180 grayscale, 150 grayscale and 100 grayscale, need that these red sub-pixels is driven to hold
Continuous work, and the red sub-pixel of 255 grayscale is then closed without processing.
The sub-pixel that grayscale value is less than second grayscale value in driving reftype continues working can be small to grayscale value
With the former grayscale value of the sub-pixel or the grayscale value grayscale of the sub-pixel is improved to the second ash in the sub-pixel of the second grayscale value
Rank value simultaneously continues working and ensure that the sub-pixel continues work, i.e., further aging is exemplary, the red of former 255 grayscale
After a period of operation, gray-scale intensity decays to 205 grayscale to sub-pixel, i.e., after showing L duration, the red of 255 grayscale
Sub-pixel has been decayed 50 grayscale, and after the red sub-pixel work L duration of 200 grayscale, gray-scale intensity becomes 170 grayscale,
Only decay 30 grayscale, and compared to sub-pixel 50 grayscale of decaying of former 255 grayscale, former 200 grayscale also need to continue decaying and get over 20 grayscale
Afterwards could be equal with the grayscale value of former 255 grayscale decaying, therefore the red sub-pixel of former 200 grayscale can be continued with 200 ashes
Rank works or its gray-scale intensity is increased to 255 grayscale, it is allowed to continue working acceleration decaying until corresponding with reference to compensation
Time has as early as possible decayed 20 gray-scale intensities of difference, and then closes to the sub-pixel of former 255 grayscale and no longer work, in this way, former
The grayscale value attenuation of the red sub-pixel of the red sub-pixel of 255 grayscale and former 200 grayscale is with regard to identical, when compensating for reference
Between for, the sub-pixel that must must also guarantee low ash rank is identical with the brightness decay value of the sub-pixel of high gray, as long as
The difference of the two be can control in the sightless threshold value of naked eyes resolution capability, and so on, all to all red sub-pixels
This operation is taken, so that each sub-pixel is decayed roughly the same grayscale value, and corresponds to green sub-pixels and blue subpixels
It all takes corresponding step to carry out accelerated ageing, and then guarantees that ghost can be eliminated.
Preferably, such as Fig. 4, in step S1: obtaining the of the sub-pixel of the corresponding reftype in still image display area
Further include following steps before the step of one grayscale value:
N1: whether frame image signal is variant before and after the corresponding display area of the still image；
N2: if nothing, determine that the display area shows still image.
, can whether variant by comparing before and after frames image signal value when judging whether it is still image, if indifference
It is different, then it can determine whether the corresponding display still image in the display area.
Preferably, as one of embodiment, if the second grayscale value is equal to the first grayscale value, step S3 is specifically included
Following steps, as shown in Figure 5:
P1: the display duration of the still image and the grayscale value of the first reference sub-pixel are obtained, described first with reference to son
Pixel is any sub-pixel that grayscale value is less than second grayscale value in the reftype, and second grayscale value is equal to institute
State the first grayscale value；
In this step include two steps, one be by the continuous work duration of time set statistical static image,
The other is grayscale value of the grayscale value less than each sub-pixel of the second grayscale value in acquisition reftype；Before the two steps
It is interchangeable afterwards, do not influence final result.
For example, to five red sub-pixels mentioned in embodiment part before, can count 200 grayscale, 180 grayscale,
The grayscale value of 150 grayscale and 100 grayscale these red sub-pixels.
P2: according to formula (1), obtained for first the first reference compensation time with reference to sub-pixel, the formula (1) isWherein TiFor the first reference compensation time of the first reference sub-pixel, L is the display duration,The grayscale value for referring to sub-pixel for described first,For second grayscale value, γ is constant, and n is the ginseng
Examine the damped expoential of sub-pixel；
It is exemplary, for 200 grayscale, 180 grayscale, 150 grayscale and 100 grayscale these red sub-pixels, due to
First grayscale value and the second grayscale value are 200 grayscale, according to formula (1), available 180 grayscale, 150 grayscale and 100 ashes
These three red sub-pixels of rank corresponding first are with reference to the compensation time.
The derivation process of formula (1) is as follows:
In the prior art, for self-emission display apparatus, that is, OLED display device, for the sub- picture of a type
Element, there are the functional relations of brightness and grayscale:-- formula (3), wherein in formula (3), OLED device
When work is under different grayscale, such as Gray1And Gray2, corresponding brightness is L1And L2, r is Gamma numerical value, generally
For constant 2.2.
In addition, there is also the functional relations of brightness and die-away time for a type of sub-pixel:--
Formula (4), wherein in formula (4), same sub-pixel corresponds to different brightness, L1And L2Respectively brightness number, when decaying
Between be inversely proportional, respectively T2And T1, it is also common sense that n, which is the damped expoential of this type sub-pixel, it should be clear that, for not
With the sub-pixel of color type, the size of damped expoential n is also different；
Therefore according to formula (3) and formula (4), can be derived from and be derived by turn -- formula (5) is meant that, if OLED device has worked in grayscale, duration is in order to guarantee grayscale Gray1And Gray2Grayscale pad value having the same, then other operating times must
It must extend to i.e.
To sum up, by the process derived above, i.e., formula (1) finally analogy can be obtained by formula (3) and (4) and (5):
Therefore exemplary according to formula (1), available to 180 grayscale, 150 grayscale and 100 grayscale, these three are red
The sub-pixel corresponding first reference compensation time, and so on, the sub-pixel of each type is all operated by this,
The each sub-pixel finally obtained in the corresponding display area of still image compensates the time accordingly, wherein grayscale value is higher
The compensation time of sub-pixel can sub-pixel more lower than grayscale value the compensation time it is short, this is higher with grayscale value, decaying have fastlyer
It closes.
P3: driving it is described first with reference to sub-pixel with it is described first with reference to sub-pixel grayscale value continue working when it is a length of
Described first with reference to the compensation time, and closes the sub-pixel that grayscale value is equal to second grayscale value.
After the time of the first reference sub-pixel continued working reaching first with reference to the compensation time, the son is also meaned that
Pixel does not need to compensate for again, makes it that need not work again at this point, closing sub-pixel, other sub-pixels is waited to reach pair after closing
After the compensation time answered, then overall all sub-pixels of opening, carry out the display of subsequent next frame image.
In actual products, this mode for eliminating ghost defect can be shown in self-emission display apparatus reaches pre- timing
It is enforceable that ghost defect is eliminated after length, initiative can also be given user, user if it find that go out on television
Existing ghost, can star the function choosing-item for eliminating ghost, carries out processing elimination to the ghost of self-emission display apparatus.
Preferably, alternatively effective embodiment, as shown in fig. 6, step S3 specifically comprises the following steps:
Q1: the display duration of the still image and the grayscale value of the second reference sub-pixel are obtained, described second with reference to son
Pixel be the reftype in grayscale value be less than second grayscale value any sub-pixel, second grayscale value be greater than etc.
In first grayscale value；
It is similar with P1 step, it also include in this step two small steps, one is by time set statistical static figure
The continuous work duration of picture, the other is ash of the grayscale value less than each sub-pixel of the second grayscale value in acquisition reftype
Rank value；The front and back of the two steps is interchangeable, does not influence final result.
For example, 200 grayscale, 180 grayscale, 150 ashes can be counted to five red sub-pixels mentioned in embodiment before
The grayscale value of rank and 100 grayscale these red sub-pixels.
Q2: according to formula (2), obtained for second the second reference compensation time with reference to sub-pixel, the formula (2) isWherein TkFor the second reference compensation time of the second reference sub-pixel, L is
Show duration,The grayscale value for referring to sub-pixel for described second,For second grayscale value, γ is constant, n
For the damped expoential of the second reference sub-pixel；
It is similar with the derivation process of formula (1), it is contemplated that in practical application, the smaller sub-pixel point of grayscale value if it is desired to and
The higher sub-pixel point of grayscale value keeps identical grayscale attenuation ratio, then for sub-pixel lesser for grayscale value,
Time needed of decaying is longer, therefore when highest grayscale value is lower in the sub-pixel of hot color type, although by other grayscale
Value driving works on, but the time that its decaying needs is very long, is difficult to be applied in practice, it is therefore desirable to try every possible means
Shorten the compensation time.It can be the grayscale value assignment of each sub-pixel to the first grayscale value or ash more higher than the first grayscale value
Rank value, it is exemplary, if the grayscale value of this four green sub-pixels is respectively at present there are four green sub-pixels in still image
70,60,30,20, then for the green sub-pixels of these lower grayscale values, maximum grayscale value ability 70, then
The second grayscale value is set as 255 grayscale, the grayscale value of four green sub-pixels is allowed to be increased to 255 grayscale, is declined with the acceleration of 255 grayscale
Subtract, desired grayscale pad value can be rapidly achieved.
Wherein, the derivation of the compensation time is as follows:
-- formula (6)
According to formula (6) can analogy go out following formula (2)
Therefore according to formula (2), corresponding second reference of available to four green sub-pixels compensates the time, according to
It is secondary to analogize, the sub-pixel of each type is all operated by this, is finally obtained in the corresponding display area of still image
Each sub-pixel compensates the time accordingly.
It should be noted that for 0 grayscale sub-pixel, since during display, 0 grayscale can not be further continued for decaying,
Therefore for the sub-pixel of 0 grayscale, specially treated is needed,
Firstly the need of the maximum gray value for getting all sub-pixels in the corresponding type of pixel of 0 grayscale sub-pixel.
By 0 grayscale sub-pixel indirect assignment to the maximum gray value, then continue working, make that it continues working when it is a length of
Still image shows duration.
It is equivalent to and an inverse process is carried out to the sub-pixel of 0 grayscale sub-pixel and highest grayscale, make 0 grayscale sub-pixel with most
High gray value accelerated ageing, the time of the aging operating time of sub-pixel corresponding with highest grayscale are equal.
Q3: driving described second is continued working with the second grayscale value with reference to sub-pixel, and it is described continue working when it is a length of
Described second with reference to the compensation time, and closes the sub-pixel that grayscale value is equal to second grayscale value.
After the time of each second reference sub-pixel continued working reaching second with reference to the compensation time, also mean that
The sub-pixel does not need to compensate for again, makes it that need not work again at this point, closing sub-pixel, other sub-pixels is waited to arrive after closing
Up to after the corresponding second compensation time, then overall all sub-pixels of opening, carry out the display of subsequent next frame image.
Based on above embodiments, reftype picture is obtained according to the first grayscale value of still image reftype sub-pixel
Second grayscale value of element, wherein the second grayscale value is more than or equal to first grayscale value, then drives grayscale value in reftype
It is continueed to work until less than the sub-pixel of second grayscale value corresponding with reference to the compensation time, and closes grayscale value and be equal to described the
The sub-pixel of two grayscale values, in this way, for reftype, that is, type of pixel of the same race sub-pixel, since the second grayscale value is big
In being equal to the first grayscale value, therefore, the driving grayscale value sub-pixel smaller than the second grayscale value is continued working, and is equivalent to this seed
Pixel carries out aging, and the grayscale value of the sub-pixel point of low ash rank is made to continue to decay, and the son that grayscale value is equal with the second grayscale value
Pixel is closed, and is not needed to compensate it, that is, is not needed to continue working carry out aging, and different sub-pixels has its corresponding
With reference to the compensation time, the sub-pixel continued working need not just compensate again after reaching oneself corresponding reference compensation time, it can
Need not work on, until all sub-pixels it is all corresponding on earth with reference to the compensation time until, in this way, can be with
Reduce the grayscale difference in attenuation between the sub-pixel of same type, can make between the sub-pixel point of same type in still image
Grayscale attenuation ratio gradually reach unanimity, utilize eliminate display screen occur ghost.
Based on the same inventive concept, this substantive examination embodiment additionally provides a kind of elimination still image display area ghost defect
System, be applied to self-emission display apparatus, the still image display area contains at least two same type but different ashes
The sub-pixel of rank value, the system comprises: the first grayscale obtains module, corresponding for obtaining the still image display area
First grayscale value of the sub-pixel of reftype, the reftype are any one in RGB type, first grayscale value
For the maximum gray value in the grayscale value of all sub-pixels of the reftype；Second grayscale obtains module, for according to institute
It states the first grayscale value and determines that the second grayscale value, second grayscale value are more than or equal to first grayscale value；Drive module is used for
Driving continues to work until the corresponding reference compensation time with reference to sub-pixel, and closes the son that grayscale value is equal to second grayscale value
Pixel, wherein the sub- picture for being less than second grayscale value with reference to any grayscale value that sub-pixel is the reftype
Element, the reference compensation time is the time continued working with reference to sub-pixel.
The connection type of this system is shown in Fig. 7, and the first grayscale obtains module and is connected with the second grayscale acquisition module, for that will obtain
The first grayscale value for getting the sub-pixel of the corresponding reftype of still image is issued the second grayscale acquisition module and is referred to, the
Two grayscale obtain module and generate the second grayscale value according to the first grayscale value, and drive module obtains module with the second grayscale and is connected, uses
It is corresponding with reference to benefit in driving the sub-pixel that grayscale value is not equal to second grayscale value in the reftype to continue to work until
It repays the time, and closes the sub-pixel that grayscale value is equal to second grayscale value.
As a preferred embodiment, it further includes following submodule that first grayscale of this system, which obtains module, such as Fig. 8
Block:
Brightness divides submodule, is divided into the still image for the brightness step according to the still image N number of
Region, each region includes the sub-pixel of at least one same type in N number of region, and N is the integer more than or equal to 2；It is flat
Equal grayscale computational submodule, the average gray-scale value of the sub-pixel for obtaining each region same type in N number of region；Grayscale
Acquisition submodule, the average gray-scale value for the sub-pixel according to each region same type obtain first grayscale
Value, first grayscale value are the maximum average gray-scale value in the average gray-scale value of the same type sub-pixel.
Preferably, such as Fig. 9, this system further includes following module: comparison module, is used for the corresponding display of comparative static image
Whether frame image signal is variant before and after region；Judgment module, for the frame image signal indifference before and after the display area
When, judging/displaying device shows still image.
Preferably, such as Figure 10, this system further includes following module: the first display duration obtains module, described for obtaining
The display duration of still image；First sub-pixel grayscale obtains module, described for obtaining the first grayscale value with reference to sub-pixel
First with reference to any sub-pixel that sub-pixel is that grayscale value is less than second grayscale value in the reftype；First calculates mould
Block, for obtaining for first the first reference compensation time with reference to sub-pixel according to formula (1), the formula (1) isWherein TiFor the first reference compensation time of the first reference sub-pixel, L is the display duration,For the grayscale value with reference to sub-pixel,For second grayscale value, γ is constant, and n is described with reference to son
The damped expoential of pixel；
First drive module, for driving described first to hold with reference to sub-pixel with the grayscale value of the first reference sub-pixel
Continuous work when a length of described first with reference to the compensation time, and close the sub-pixel that grayscale value is equal to second grayscale value.
Preferably, alternatively preferred embodiment, such as Figure 11, this system further include following module: second is aobvious
Show that duration obtains module, for obtaining the display duration of the still image；Second sub-pixel grayscale obtains module, for obtaining
The grayscale value of second reference sub-pixel, described second is less than second ash with reference to sub-pixel for grayscale value in the reftype
Any sub-pixel of rank value；Second computing module, for obtaining second the second reference benefit with reference to sub-pixel according to formula (2)
It repays the time, the formula (2) isWherein TkFor second with reference to sub-pixel
Second with reference to the compensation time, and L is the display duration,The grayscale value for referring to sub-pixel for described second,For
Second grayscale value, γ are constant, and n is the damped expoential of the second reference sub-pixel；Second drive module, for being used for
Described second is driven to be continued working with the second grayscale value with reference to sub-pixel, and when a length of second reference continued working
The time is compensated, and closes the sub-pixel that grayscale value is equal to second grayscale value.
Based on above embodiments, reftype picture is obtained according to the first grayscale value of still image reftype sub-pixel
Second grayscale value of element, wherein the second grayscale value is more than or equal to first grayscale value, then drives grayscale in reftype
The sub-pixel that value is less than second grayscale value continues to work until the corresponding reference compensation time, and closes grayscale value equal to described
The sub-pixel of second grayscale value, in this way, for reftype, that is, type of pixel of the same race sub-pixel, due to the second grayscale value
More than or equal to the first grayscale value, therefore, the driving grayscale value sub-pixel smaller than the second grayscale value is continued working, and is equivalent to this
Sub-pixel carries out aging, and the grayscale value of the sub-pixel point of low ash rank is made to continue to decay, and grayscale value is equal with the second grayscale value
Sub-pixel is closed, and is not needed to compensate it, that is, is not needed to continue working carry out aging, and different sub-pixels has its correspondence
Reference compensate the time, the sub-pixel continued working reach oneself it is corresponding with reference to compensation the time after need not just compensate again
It, in this way, can until all sub-pixels all corresponding reference compensation time on earth need not work on
So that the grayscale difference in attenuation between the sub-pixel of same type reduces, can make same type in still image sub-pixel point it
Between grayscale attenuation ratio gradually reach unanimity, utilize eliminate display screen occur ghost.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.Obviously, those skilled in the art can be to the present invention
Carry out various modification and variations without departing from the spirit and scope of the present invention.If in this way, these modifications and changes of the present invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to encompass these modification and variations and exists
It is interior.
Claims (10)
1. a kind of method for eliminating still image display area ghost defect, is applied to self-emission display apparatus, the static map
As display area contains at least two same type but the sub-pixel of different grayscale values, which is characterized in that the described method includes:
The first grayscale value of the sub-pixel of the corresponding reftype in the still image display area is obtained, the reftype is
Any one in RGB type, first grayscale value are the maximum in the grayscale value of all sub-pixels of the reftype
Grayscale value；
Determine that the second grayscale value, second grayscale value are more than or equal to first grayscale value according to first grayscale value；
Driving continues to work until the corresponding reference compensation time with reference to sub-pixel, and closes grayscale value and be equal to second grayscale value
Sub-pixel, wherein it is described with reference to sub-pixel be the reftype any grayscale value be less than second grayscale value son
Pixel, the reference compensation time is the time continued working with reference to sub-pixel, so that the sub- picture of the reftype
Grayscale difference in attenuation between element reduces, and the difference is in the sightless threshold value of naked eyes resolution capability.
2. eliminating the method for still image display area ghost defect as described in claim 1, which is characterized in that the acquisition
The step of first grayscale value of the sub-pixel of the corresponding reftype in the still image display area specifically:
The still image is divided into N number of region, each area in N number of region according to the brightness step of the still image
Domain includes the sub-pixel of at least one same type, and N is the integer more than or equal to 2；
Obtain the average gray-scale value of the sub-pixel of each region same type in N number of region；
First grayscale value, first ash are obtained according to the average gray-scale value of the sub-pixel of each region same type
Rank value is the maximum average gray-scale value in the average gray-scale value of the same type sub-pixel.
3. eliminating the method for still image display area ghost defect as claimed in claim 2, which is characterized in that obtained described
It further include as follows before the step of taking the first grayscale value of the sub-pixel of the corresponding reftype in the still image display area
Step:
Whether frame image signal is variant before and after comparing the corresponding display area of the still image；
If nothing, determine that the display area shows still image.
4. eliminating the method for still image display area ghost defect as claimed in claim 3, which is characterized in that
The driving continues to work until the corresponding reference compensation time with reference to sub-pixel, and closes grayscale value and be equal to second ash
The step of sub-pixel of rank value specifically:
The display duration of the still image and the grayscale value of the first reference sub-pixel are obtained, the first reference sub-pixel is institute
Any sub-pixel that grayscale value in reftype is less than second grayscale value is stated, second grayscale value is equal to first ash
Rank value；
According to formula (1), obtained for described first the first compensation time with reference to sub-pixel, the formula (1) isWherein TiThe time is compensated with reference to the first of sub-pixel for described first, L is the display duration,The grayscale value for referring to sub-pixel for described first,For second grayscale value, γ is constant, and n is described first
With reference to the damped expoential of sub-pixel；
Drive described first with reference to sub-pixel with described first with reference to sub-pixel grayscale value continue working when a length of described the
One with reference to the compensation time, and closes the sub-pixel that grayscale value is equal to second grayscale value.
5. eliminating the method for still image display area ghost defect as claimed in claim 3, which is characterized in that
The driving is described to continue to work until corresponding with reference to the compensation time with reference to sub-pixel, and closes grayscale value and is equal to described the
The step of sub-pixel of two grayscale values specifically:
The display duration of the still image and the grayscale value of the second reference sub-pixel are obtained, the second reference sub-pixel is institute
State any sub-pixel that grayscale value in reftype is less than second grayscale value, second grayscale value is more than or equal to described the
One grayscale value；
According to formula (2), obtained for described second the second reference compensation time with reference to sub-pixel, the formula (2) isWherein TkFor the second reference compensation time of the second reference sub-pixel, L
For the display duration,The grayscale value for referring to sub-pixel for described second,For second grayscale value, γ is
Constant, n are the damped expoential of the second reference sub-pixel；
Drive described second to be continued working with the second grayscale value with reference to sub-pixel, and it is described continue working when a length of described second
With reference to the compensation time, and close the sub-pixel that grayscale value is equal to second grayscale value.
6. a kind of system for eliminating still image display area ghost defect, is applied to self-emission display apparatus, the static map
As display area contains at least two same type but the sub-pixel of different grayscale values, which is characterized in that the system comprises:
First grayscale acquisition module, first of the sub-pixel for obtaining the corresponding reftype in the still image display area
Grayscale value, the reftype are any one in RGB type, and first grayscale value is all sons of the reftype
Maximum gray value in the grayscale value of pixel；
Second grayscale obtains module, for determining that the second grayscale value, second grayscale value are greater than according to first grayscale value
Equal to first grayscale value；
Drive module continues to work until the corresponding reference compensation time with reference to sub-pixel for driving, and closes grayscale value and be equal to
The sub-pixel of second grayscale value, wherein it is described be less than with reference to any grayscale value that sub-pixel is the reftype it is described
The sub-pixel of second grayscale value, the reference compensation time is the time continued working with reference to sub-pixel, so that described
Grayscale difference in attenuation between the sub-pixel of reftype reduces, and the difference is in the sightless threshold value of naked eyes resolution capability.
7. eliminating the system of still image display area ghost defect as claimed in claim 6, which is characterized in that described first
It further includes following submodule that grayscale, which obtains module:
Brightness divides submodule, for the still image to be divided into N number of region according to the brightness step of the still image,
Each region includes the sub-pixel of at least one same type in N number of region, and N is the integer more than or equal to 2；
Average grayscale computational submodule, the average grayscale of the sub-pixel for obtaining each region same type in N number of region
Value；
Grayscale acquisition submodule obtains described for the average gray-scale value according to the sub-pixel of each region same type
One grayscale value, first grayscale value are the maximum average gray-scale value in the average gray-scale value of the same type sub-pixel.
8. eliminating the system of still image display area ghost defect as claimed in claim 7, which is characterized in that the system
Further include following module:
Comparison module, it is whether variant for frame image signal before and after the corresponding display area of the still image；
Judgment module, for when frame image signal indifference, it is quiet to determine that the display device is shown before and after the display area
State image.
9. eliminating the method for still image display area ghost defect as claimed in claim 8, which is characterized in that the system
Further include following module:
First display duration obtains module, for obtaining the display duration of the still image；
First sub-pixel grayscale obtains module, and for obtaining the first grayscale value with reference to sub-pixel, described first refers to sub-pixel
It is less than any sub-pixel of second grayscale value for grayscale value in the reftype, and second grayscale value is equal to described
First grayscale value；
First computing module, for obtaining first the first reference compensation time with reference to sub-pixel, the public affairs according to formula (1)
Formula (1) isWherein TiFor the first reference compensation time of the first reference sub-pixel, L is institute
Display duration is stated,The grayscale value for referring to sub-pixel for described first,For second grayscale value, γ is constant,
N is the damped expoential of the first reference sub-pixel；
First drive module drives the first reference sub-pixel to continue working with the grayscale value of the first reference sub-pixel
First with reference to the compensation time described in Shi Changwei, and closes the sub-pixel that grayscale value is equal to second grayscale value.
10. eliminating the method for still image display area ghost defect as claimed in claim 8, which is characterized in that the system
System further includes following module:
Second display duration obtains module, for obtaining the display duration of the still image；
Second sub-pixel grayscale obtains module, and for obtaining the second grayscale value with reference to sub-pixel, described second refers to sub-pixel
It is less than any sub-pixel of second grayscale value for grayscale value in the reftype, second grayscale value is more than or equal to institute
State the first grayscale value；
Second computing module, for obtaining described second the second reference compensation time with reference to sub-pixel, institute according to formula (2)
Stating formula (2) isWherein TkJoin for described second with reference to the second of sub-pixel
It examining the compensation time, L is the display duration,The grayscale value for referring to sub-pixel for described second,It is described second
Grayscale value, γ are constant, and n is the damped expoential of the second reference sub-pixel；
Second drive module, for driving described second to continue working with reference to sub-pixel with the second grayscale value, and the lasting work
Work when it is a length of it is described second with reference to compensation the time, and close grayscale value be equal to second grayscale value sub-pixel.
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Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107111982B (en) * | 2015-03-16 | 2020-11-10 | 华为技术有限公司 | Image display method and device |
| CN104680979B (en) * | 2015-03-23 | 2019-03-12 | 京东方科技集团股份有限公司 | The method of OLED display and the image retention for correcting OLED display |
| CN106157929B (en) * | 2015-04-22 | 2018-06-26 | 上海和辉光电有限公司 | The adjustment system and its luminance regulating method of brightness of display screen attenuation |
| CN105096829B (en) * | 2015-08-18 | 2017-06-20 | 青岛海信电器股份有限公司 | Eliminate method, device and the display of ghost |
| CN106855679B (en) * | 2015-12-08 | 2019-05-03 | 深圳光峰科技股份有限公司 | Projection arrangement and its control method |
| CN105788527B (en) * | 2016-03-31 | 2018-03-27 | 广东欧珀移动通信有限公司 | A kind of pixel call method and device |
| CN105741762B (en) * | 2016-03-31 | 2018-01-30 | 深圳市华星光电技术有限公司 | The method for eliminating OLED display panel Mura |
| CN106023887B (en) * | 2016-06-16 | 2018-07-10 | 深圳市华星光电技术有限公司 | Reduce the device and method of OLED display panel ghost |
| CN106023894B (en) * | 2016-08-09 | 2019-01-22 | 深圳市华星光电技术有限公司 | A kind of driving method and drive system for reducing AMOLED and showing ghost |
| CN106097970B (en) * | 2016-08-10 | 2018-11-20 | 深圳市华星光电技术有限公司 | A kind of driving method and drive system for reducing AMOLED and showing ghost |
| CN106486061A (en) * | 2016-08-24 | 2017-03-08 | 深圳市华星光电技术有限公司 | A kind of OLED display panel drive system and static pattern processing method |
| CN106683614A (en) * | 2017-02-17 | 2017-05-17 | 广东欧珀移动通信有限公司 | Organic light emitting diodes (OLED) display control method and mobile terminal |
| WO2020010617A1 (en) | 2018-07-13 | 2020-01-16 | Texas Instruments Incorporated | Methods and apparatus to reduce a coupling effect in an led display |
| CN108877678A (en) * | 2018-09-10 | 2018-11-23 | 深圳创维－Rgb电子有限公司 | Image display method, device, display equipment and medium based on pixel compensation |
| CN109215596B (en) * | 2018-10-12 | 2020-04-28 | 惠州市华星光电技术有限公司 | Method and device for automatically adjusting overdrive voltage and display panel |
| CN109859638A (en) * | 2018-11-20 | 2019-06-07 | 武汉华星光电半导体显示技术有限公司 | U-CUT screen OLED display and its icon display method |
| CN109981843B (en) * | 2019-03-15 | 2020-12-08 | Oppo广东移动通信有限公司 | Screen processing method and device of electronic equipment, electronic equipment and storage medium |
| CN111831239B (en) * | 2019-04-15 | 2023-07-11 | 深信服科技股份有限公司 | Virtual desktop ghost elimination method and device, electronic equipment and storage medium |
| CN110097850A (en) * | 2019-05-05 | 2019-08-06 | Oppo广东移动通信有限公司 | Control method, control device, electronic equipment and computer readable storage medium |
| CN110136631B (en) * | 2019-06-25 | 2022-03-01 | 惠州市华星光电技术有限公司 | Method for adjusting display picture of display device |
| CN110808006B (en) * | 2019-09-06 | 2021-01-15 | 华为技术有限公司 | Display screen aging compensation method, circuit system and electronic equipment |
| CN112825237B (en) | 2019-11-20 | 2022-05-24 | 联咏科技股份有限公司 | Image processing apparatus and method of operating the same |
| CN111050224A (en) * | 2019-12-27 | 2020-04-21 | 深圳创维－Rgb电子有限公司 | Processing method for preventing residual image of television, television and storage medium |
| CN111415618B (en) * | 2020-04-29 | 2021-08-17 | 京东方科技集团股份有限公司 | Display driving method and display device |
| CN111653249B (en) * | 2020-06-01 | 2021-03-12 | 昆山国显光电有限公司 | Display control method and device of display panel and electronic equipment |
| CN112185313B (en) * | 2020-10-16 | 2022-05-31 | Tcl华星光电技术有限公司 | Pixel structure driving method and display device |
| CN116686037A (en) * | 2020-10-19 | 2023-09-01 | 西安诺瓦星云科技股份有限公司 | Gray scale measurement method and device |
| CN112863439B (en) * | 2021-01-21 | 2022-06-28 | 京东方科技集团股份有限公司 | Method and device for improving OLED (organic light emitting diode) afterimage, display device and medium |
| CN113129822B (en) * | 2021-04-21 | 2022-09-27 | 京东方科技集团股份有限公司 | Display control method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912975A (en) * | 2005-08-12 | 2007-02-14 | 株式会社半导体能源研究所 | Display device |
| CN101014991A (en) * | 2004-06-29 | 2007-08-08 | 彩光公司 | System and method for a high-performance display device having individual pixel luminance sensing and control |
| CN101615374A (en) * | 2009-07-15 | 2009-12-30 | 广东威创视讯科技股份有限公司 | A kind of tableaux device and its implementation of demonstration time controlled |
| CN101647319A (en) * | 2007-03-15 | 2010-02-10 | 伊斯曼柯达公司 | LED device compensation method |
| CN101675463A (en) * | 2007-05-18 | 2010-03-17 | 索尼株式会社 | Display device, display device drive method, and computer program |
| CN101908309A (en) * | 2009-06-03 | 2010-12-08 | 索尼公司 | The electronic installation of display device and driving method thereof and the control of execution pixel duty |
| CN103871361A (en) * | 2012-12-17 | 2014-06-18 | 乐金显示有限公司 | Organic light emitting display device and method for driving the same |
| CN104021759A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | Luminance supplementing method and device for display device, and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100923498B1 (en) * | 2003-03-06 | 2009-10-27 | 엘지디스플레이 주식회사 | AMLCD and the driving method |
-
2014
- 2014-09-29 CN CN201410515657.1A patent/CN104318893B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014991A (en) * | 2004-06-29 | 2007-08-08 | 彩光公司 | System and method for a high-performance display device having individual pixel luminance sensing and control |
| CN1912975A (en) * | 2005-08-12 | 2007-02-14 | 株式会社半导体能源研究所 | Display device |
| CN101647319A (en) * | 2007-03-15 | 2010-02-10 | 伊斯曼柯达公司 | LED device compensation method |
| CN101675463A (en) * | 2007-05-18 | 2010-03-17 | 索尼株式会社 | Display device, display device drive method, and computer program |
| CN101908309A (en) * | 2009-06-03 | 2010-12-08 | 索尼公司 | The electronic installation of display device and driving method thereof and the control of execution pixel duty |
| CN101615374A (en) * | 2009-07-15 | 2009-12-30 | 广东威创视讯科技股份有限公司 | A kind of tableaux device and its implementation of demonstration time controlled |
| CN103871361A (en) * | 2012-12-17 | 2014-06-18 | 乐金显示有限公司 | Organic light emitting display device and method for driving the same |
| CN104021759A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | Luminance supplementing method and device for display device, and display device |
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