CN105096829B - Eliminate method, device and the display of ghost - Google Patents
Eliminate method, device and the display of ghost Download PDFInfo
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- CN105096829B CN105096829B CN201510511558.0A CN201510511558A CN105096829B CN 105096829 B CN105096829 B CN 105096829B CN 201510511558 A CN201510511558 A CN 201510511558A CN 105096829 B CN105096829 B CN 105096829B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
The present invention provides a kind of method for eliminating ghost, device and display, and method includes:During image frame shows, take 1 frame time at interval of P frames and sub-pixel is detected, obtain the ageing information of sub-pixel, wherein, P is the positive integer more than 1；The compensated information of sub-pixel is obtained according to ageing information；Sub-pixel is compensated according to compensated information, is decayed with the GTG for reducing sub-pixel.According to the present invention, during being shown in image frame, 1 frame is taken to detect sub-pixel, until obtaining the ageing information of all sub-pixels, and then when the corresponding frame of image frame shows, the device for eliminating ghost by computing can obtain compensated information and compensate operation, can thus avoid needing that user is standby could to eliminate ghost, influence customer experience, can realize the elimination of ghost again.
Description
Technical field
The present invention relates to lcd technology, more particularly to a kind of method for eliminating ghost, device and display.
Background technology
At present, OLED (Organic Light-Emitting Diode, organic light emitting diode) because can self-luminous show
Show, fast response time, visual angle is wide, can be curled, fold or as wearable computer a part the advantages of, therefore
There is application widely in the special dimension such as portable product and military affairs.OLED Display Techniques are with traditional LCD display modes not
Together, it is without backlight, but uses very thin coating of organic material and glass substrate, and when there is electric current to pass through, these have
Machine material will light.
In OLED display, for same type of sub-pixel, may there is luminance difference between each sub-pixel, i.e.,
During display, the brightness of each sub-pixel is different, and the driving current that each sub-pixel needs presses different, brightness son higher
The driving current that pixel needs is bigger, therefore the heating temp of each sub-pixel is differed, with the increase of working time, each son
There is expendable aging phenomenon in pixel, for example, driving TFT (Thin Film Transistor, film crystalline substance in sub-pixel
Body pipe) threshold voltage can drift about, so show a period of time after, all there is certain decay in the brightness of each sub-pixel,
But the degree of decay is different, the GTG decay of brightness sub-pixel higher is faster.For example, an image frame has two
Red sub-pixel, grey decision-making is respectively 255 and 150, after a period of time, and it is former that grey decision-making is respectively 200 and 125, i.e. grey decision-making
This has decayed 50 GTGs for the GTG of 255 red sub-pixel, and grey decision-making is originally used for the GTG decay of 150 red sub-pixel
25 GTGs, brightness decay between two red sub-pixels differs greatly.So, image is shown for a long time in OLED display
After picture, if switched over to picture, the picture after switching occurs the ghost of former image frame, can so influence OLED
The display effect of display.
In the prior art, ghost is typically eliminated by compensating, specific practice is：Every Preset Time, user is reminded to work as
Before need to compensate pixel, it is necessary to standby and carry out backstage compensating operation, the process of consistency operation is：In OLED display
After standby, the driving chip in OLED display is switched to compensation model, i.e., the sub-pixel in OLED display is idle
In the case of, the mode of sub-pixel is progressively scanned, the ageing information of each sub-pixel is obtained using detection lines, for example drive the threshold of TFT
Value drift information, and then the driving voltage of each sub-pixel is adjusted, the electric current of each sub-pixel is adjusted to the original electricity of each sub-pixel
Stream, the primary current is, for example, the average value of electric current when each sub-pixel works before compensation model.But when default
Between be accomplished by user it is standby come realize eliminate ghost operation, so can bring great inconvenience to user.
The content of the invention
The present invention provide it is a kind of eliminate the method for ghost, device and display, it is standby to solve to need in prior art etc.
Carry out the defect of the operation of elimination ghost.
One side of the invention provides a kind of method for eliminating ghost, including：
During image frame shows, take 1 frame time at interval of P frames and sub-pixel is detected, obtain the son
The ageing information of pixel, wherein, P is the positive integer more than 1；
The compensated information of the sub-pixel is obtained according to the ageing information；
The sub-pixel is compensated according to the compensated information, is decayed with the GTG for reducing the sub-pixel.
Another aspect of the invention provides a kind of device for eliminating ghost, including：
Detection module, during being shown in image frame, takes 1 frame time and sub-pixel is examined at interval of P frames
Survey, obtain the ageing information of the sub-pixel, wherein, P is the positive integer more than 1；
Acquisition module, the compensated information for obtaining the sub-pixel according to the ageing information；
Compensating module, for being compensated to the sub-pixel according to the compensated information, to reduce the sub-pixel
GTG is decayed.
Another aspect of the present invention provides a kind of display, including any of the above-described kind of device of elimination ghost.
As shown from the above technical solution, the present invention is provided the method for eliminating ghost, device and display, by shadow
During being shown as picture, take 1 frame to detect sub-pixel, until the ageing information of all sub-pixels is obtained, and then
When the corresponding frame of image frame shows, the device for eliminating ghost by computing can obtain compensated information and compensate behaviour
Make, can thus avoid needing that user is standby could eliminate ghost, influence customer experience can realize the elimination of ghost again.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the method for the elimination ghost according to one embodiment of the invention；
Fig. 2 is the structural representation of the device of the elimination ghost according to another embodiment of the present invention；
Fig. 3 is the structural representation of the device of the elimination ghost according to further embodiment of this invention；
Fig. 4 is the structural representation of the device of the elimination ghost according to yet another embodiment of the invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The brightness of image is determined by GTG, and the concept of GTG is introduced first below：It is aobvious that usual user sees
Show on the image that device shows be a little by three sub-pixel groups of red, green and blue into, each sub-pixel can show
Different gray scales, GTG represents brightness by most bright to most dark different levels rank, the more multidisplay picture effect of level
It is thinner.For example, 256 luminance levels are referred to as 256 GTGs, the color change of a point on image is represented by constituting this point
Three changes of the GTG of sub-pixel.
Image frame：Including dynamic menu and tableaux, tableaux：It is made up of multiple continuous same number of frames.Typically
In the case of, tableaux can continue 1-2 seconds, due to might have within 1 second can include in up to a hundred frames, therefore tableaux it is up to a hundred
Individual frame.Dynamic menu is made up of multiple different frames.
Frame：The single width image frame of least unit in image animation a, frame is exactly a static picture.
Embodiment one
The present embodiment provides a kind of method for eliminating ghost, for eliminating the ghost in display, especially eliminates OLED
Ghost in display.As shown in figure 1, being the schematic flow sheet of the method for the elimination ghost according to the present embodiment.The present embodiment
The method of elimination ghost include：
Step 101, during image frame shows, takes 1 frame time and sub-pixel is detected at interval of P frames, obtains
Take the ageing information of sub-pixel.
Wherein, P is the positive integer more than 1, it is preferred that P is the integer more than or equal to 3.
The image frame of the present embodiment includes dynamic menu and tableaux.Carried out due to only taking up 1 frame in the present embodiment
Detection, user hardly perceives the discontinuity of the frame of influence picture, would not also discover the pause of image frame, especially
Be, if the operating process of the present embodiment is carried out under tableaux, before detection with detection after two frame identicals in the case of,
It may be said that not interfering with the sense organ of user completely, user will not perceive image frame and produce discontinuity.
The mode for determining whether tableaux is, for example,：Compare the corresponding each pixel of present frame grey decision-making whether with it is upper
One frame is identical, if comparative result is identical, it is determined that currently displaying picture is tableaux.Even former frame all sub-pixels
GTG of the GTG with all sub-pixels of a later frame is equal, then it represents that former frame is identical with the picture of a later frame, is tableaux.
The specific GTG for how obtaining each pixel, can be obtained by obtaining the driving voltage of a pixel, belong to prior art, specifically
Repeat no more.
The detection time of the present embodiment can not be long, is not connected with avoiding the user for watching display from perceiving picture
It is continuous, and then avoid influenceing Consumer's Experience, therefore detection time is set as taking the time of 1 frame.Assuming that user's detection display
The time of middle a line sub-pixel is 1 frame, then detect 1 row sub-pixel every time.So, 1 row is detected every P frames, it is possible to detected
All of sub-pixel.
P can be selected according to actual needs.For example P frames can obtain the benefit of 1 detected row sub-pixel for calculating
Repay the time of information.That is, the operation for calculating the compensated information of sub-pixel can simultaneously be carried out with the display of image frame, the operation
Have no effect on the display of image frame.Certainly, P can be set according to actual needs, be will not be repeated here.
The ageing information of the present embodiment can be the current information of the sub-pixel for currently being detected, or be consequently exerted at and examined
Difference between the ideal current of the corresponding sub-pixel of driving voltage and the actual current of the sub-pixel for being detected of the sub-pixel of survey
Value etc., can specifically set according to actual needs, will not be repeated here.
Wherein, the pixel of OLED display includes four sub-pixels, respectively red sub-pixel, green sub-pixels, blueness
Sub-pixel and white sub-pixels.
If additionally, during the display of tableaux, the detection process is finished, can select quiet next time
Proceed detection during the display of state picture.
Step 102, the compensated information of sub-pixel is obtained according to ageing information.
For example, if ageing information is the current information of sub-pixel, the device for eliminating ghost can be obtained according to detection electric current
Offset voltage of the sub-pixel under predeterminated voltage is taken, the offset voltage is exactly compensated information.The step belongs to prior art, herein
Repeat no more.
It is noted that step 102 operation can with the operation of step 101 simultaneously carry out, i.e. when step 101
Performed, now eliminating the device of ghost can just calculate the compensation letter of sub-pixel according to the ageing information of acquired sub-pixel
Breath.
Step 103, compensates according to compensated information to sub-pixel, is decayed with the GTG for reducing sub-pixel.
For example, the driving voltage of adjustment sub-pixel is so that the actual current of sub-pixel reaches initial current, the drive after adjustment
Dynamic voltage is equal to offset voltage and predeterminated voltage sum, electric current when initial current is unaged sub-pixel under predeterminated voltage.
The step belongs to prior art, will not be repeated here.
It is noted that ideally, the driving voltage after adjustment is equal to offset voltage and predeterminated voltage sum,
But in due to practical operation, always have various errors so that driving voltage can not be fully achieved predeterminated voltage, and then can cause son
The actual current of pixel has certain difference with initial current, therefore, as long as the difference is within allowed band, it is possible to regard as
Actual current is equal with initial current, can reduce the GTG decay of sub-pixel.
Compared with prior art, the method for the elimination ghost of the present embodiment, during being shown in tableaux, takes
1 frame is detected to sub-pixel, until obtaining the ageing information of all sub-pixels, and then shown in the corresponding frame of image frame
When, eliminate the device of ghost and can be obtained by computing and compensated information and compensate operation, you can to influence picture
Complete to eliminate the operation of ghost during normal display, and detected due to only taking up 1 frame, can't the sense organ of user make
Into excessive influence, user hardly discovers the discontinuity of the frame of influence picture, thus can both avoid needing user standby
Ghost could be eliminated and influence customer experience, the elimination of ghost can be realized again.
Embodiment two
Because some frames of image frame are occupied, i.e., the frame that image frame is included will subtract compared with the frame that original is included
Few, can so cause the overall brightness of image frame reduces.Therefore, on the basis of previous embodiment, the present embodiment is to above-mentioned
The method of the elimination ghost of embodiment does further supplementary notes.In the present embodiment, each son under raising image frame can be performed
The operation of the grey decision-making of pixel, to avoid the reduction of the overall brightness of image frame.
Specifically, the grey decision-making of each sub-pixel includes under raising image frame：
Obtain the grey decision-making of each sub-pixel in display screen under image frame；
The GTG threshold value of each pixel is determined according to equation below：
Wherein, GraythIt is GTG threshold value, GraymaxBe the maximum gray value of each pixel, i.e., maximum GTG in each pixel
Value.
Blast grey decision-making is obtained according to equation below：
Wherein, GrayoIt is initial grey decision-making, Grayo' it is blast grey decision-making；
When image frame is shown, the grey decision-making by grey decision-making in each sub-pixel more than or equal to the sub-pixel of GTG threshold value
Maximum gray value is adjusted to, and grey decision-making in each sub-pixel is adjusted to increase less than the sub-pixel of GTG threshold value by initial grey decision-making
Bright grey decision-making.
It is noted that the operation of the grey decision-making of each sub-pixel specifically can be in inspection under the raising image frame of the present embodiment
Survey module 201 starts after detection, is performed when showing image frame again, additionally, each sub-pixel under the raising image frame
The operation of grey decision-making is carried out in the time-continuing process of image frame.
Compared with prior art, the present embodiment can not only eliminate ghost in the situation for avoiding user standby, normal in user
Can just complete the elimination of ghost during viewing image frame, and by by grey decision-making more than or equal to the sub-pixel of GTG threshold value
GTG is adjusted to maximum gray, such as 255 GTGs, and the GTG of the sub-pixel less than GTG threshold value is adjusted into blast GTG
Value, that is, improve the grey decision-making of each sub-pixel of image frame, and then improve the overall brightness of image frame, it is to avoid because image is drawn
The frame in face is occupied to cause the reduction of image frame overall brightness, influences customer experience.
Embodiment three
The method that concrete example illustrates the elimination ghost of above-described embodiment below.
First, the device for eliminating ghost first judges whether currently displaying picture is image frame, for example, comparing present frame pair
Whether the grey decision-making of each pixel answered is identical with previous frame, if comparative result is identical, it is determined that currently displaying picture is image
Picture.
Sub-pixel is detected next, performing and taking 1 frame time at interval of P frames, obtains the ageing information of sub-pixel
Must operate.Specifically, the step can include：Detection frame is obtained at interval of P frames, the driving of the sub-pixel being detected under detection frame
Voltage is equal with the driving voltage of the sub-pixel under image frame, using the corresponding frame of detection frame replacement image picture, and in inspection
The detection electric current of sub-pixel is obtained under survey frame.
For example, it is assumed that the time for detecting all sub-pixels is 300 seconds, the sub-pixel of OLED display totally 3840 arranges × 2160
OK.It is assumed that P is 3, i.e., insert 1 frame detection frame at interval of 3 frames.That is, if the display frequency of image frame is 120 frames/second, present 1
Second display 120 frames/second × (1-1/ (1+4))=96 frames, and human eye will not be perceived and stopped to 60 frames/display picture more than second
, so, even if carrying out the detection of 1 frame at interval of 3 frames, do not interfere with the sense organ of human eye yet.Similarly, if carrying out 1 at interval of 8 frames
The detection of frame is also possible, i.e., the display frequency of still image is 102 frames/second, does not interfere with the sense organ of human eye.
The corresponding compensation picture of the detection frame of the present embodiment can be according to the acquisition of image frame, for example, in detection frame
GTG of the grey decision-making of detected sub-pixel with the sub-pixel of image frame is identical, and the grey decision-making of other sub-pixels can be equal
It is 0.
Then, offset voltage of the sub-pixel under predeterminated voltage is obtained according to detection electric current.
Assuming that the time of detection sub-pixel needs 1 frame, the compensation electricity according to detection power acquisition sub-pixel under predeterminated voltage
The time of pressure is 3 frames, then just in detection time next time, eliminating the device of ghost can calculate the sub-pixel for completing to be detected
Offset voltage.
Finally, the driving voltage of adjustment sub-pixel is so that the actual current of sub-pixel reaches initial current, the drive after adjustment
Dynamic voltage is equal to offset voltage and predeterminated voltage sum, electric current when initial current is unaged sub-pixel under predeterminated voltage.
The compensating operation can complete to be carried out immediately after offset voltage calculating, i.e., carried out when image frame shows,
Can be carried out after the offset voltage for obtaining all sub-pixels, i.e., be carried out after image frame shows and finishes, for example, will mended
Repay voltage to be stored in advance in null balance voltmeter, the unification of each sub-pixel is adjusted finally according to null balance voltmeter, specifically may be used
To set according to actual needs.
Specifically, after the 1st row sub-pixel is detected completion, the display of image frame, 3 frame to be shown are immediately switched to
Afterwards, then the 2nd row sub-pixel is detected, the display of image frame is then immediately switched to again, so circulation, until having detected OLED
All sub-pixels in display.
Further, it is also possible to carry out the behaviour of the raising grey decision-making such as embodiment two at any time to the corresponding sub-pixel of image frame
Make, specifically repeat no more.
Compared with prior art, the method for the elimination ghost of the present embodiment, during being shown in image frame, takes
1 frame is detected to sub-pixel, until obtaining the ageing information of all sub-pixels, and then shown in the corresponding frame of image frame
When, eliminate the device of ghost and can be obtained by computing and compensated information and compensate operation, can thus avoid needing user
It is standby to eliminate ghost, customer experience is influenceed, the elimination of ghost can be realized again.
Example IV
The present embodiment provides a kind of device for eliminating ghost, the method for the elimination ghost for performing embodiment one.
As shown in Fig. 2 being the structural representation of the device of the elimination ghost according to the present embodiment.The device of the elimination ghost
Including：Detection module 201, acquisition module 202 and compensating module 203.
Wherein, detection module 201 is used for during image frame shows, 1 frame time is taken to sub-pixel at interval of P frames
Detected, obtained the ageing information of sub-pixel, wherein, P is the positive integer more than 1,；Acquisition module 202 is used for according to aging
The compensated information of acquisition of information sub-pixel；Compensating module 203 is used to compensate sub-pixel according to compensated information, to reduce son
The GTG decay of pixel.
The detection time of the present embodiment can not be long, is not connected with avoiding the user for watching display from perceiving picture
It is continuous, and then avoid influenceing Consumer's Experience, therefore detection time is set to the time of 1 frame.Assuming that a line in user's detection display
The time of sub-pixel is 1 frame, then detect 1 row sub-pixel every time.So, 1 row is detected every P frames, it is possible to detected all of
Sub-pixel.
P can be selected according to actual needs.For example P frames can obtain the benefit of 1 detected row sub-pixel for calculating
Repay the time of information.That is, the operation for calculating the compensated information of sub-pixel can simultaneously be carried out with the display of image frame, the operation
Have no effect on the display of image frame.Certainly, P can be set according to actual needs, be will not be repeated here.
The ageing information of the present embodiment can be the current information of the sub-pixel for currently being detected, or be consequently exerted at and examined
Difference between the ideal current of the corresponding sub-pixel of driving voltage and the actual current of the sub-pixel for being detected of the sub-pixel of survey
Value etc., can specifically set according to actual needs, will not be repeated here.
Wherein, the pixel of OLED display includes four sub-pixels, respectively red sub-pixel, green sub-pixels, blueness
Sub-pixel and white sub-pixels.
Alternatively, the detection module 201 of the present embodiment specifically for：
Detection frame is obtained at interval of P frames, the son under the driving voltage and image frame of the sub-pixel being detected under detection frame
The driving voltage of pixel is equal；
Using the corresponding frame of detection frame replacement image picture；
The detection electric current of sub-pixel is obtained under detection frame.
Alternatively, the acquisition module 202 of the present embodiment specifically for：
Offset voltage of the sub-pixel under predeterminated voltage is obtained according to detection electric current；Correspondingly, compensating module 203 is specifically used
In：
The driving voltage of sub-pixel is adjusted so that the electric current of sub-pixel reaches initial current, the driving voltage after adjustment is equal to
Offset voltage and predeterminated voltage sum, electric current when initial current is unaged sub-pixel under predeterminated voltage.
In the present embodiment, the concrete operations of acquisition module 202 and compensating module 203 are prior art, no longer go to live in the household of one's in-laws on getting married herein
State.
Alternatively, as shown in figure 3, the device of the elimination ghost of the present embodiment also includes comparison module 301, the comparison module
301 are used for：
Whether the grey decision-making for comparing the corresponding each pixel of present frame is identical with previous frame；
If comparative result is identical, it is determined that currently displaying picture is tableaux, detection trigger module 201.
That is, when it is tableaux that comparison module 301 determines currently displaying picture, ability detection trigger module 201 is performed
Corresponding action, and then realize eliminating ghost.
Compared with prior art, the device of the elimination ghost of the present embodiment, detection module 201 shows by image frame
During, 1 frame is taken to detect sub-pixel, until the ageing information of all sub-pixels is obtained, and then in image frame
When corresponding frame shows, acquisition module 202 can obtain compensated information and by compensating module 203 according to acquisition mould by computing
Compensated information accessed by block 202 compensates operation to each sub-pixel, you can with the normal display process of influence picture
The middle operation for completing to eliminate ghost, and is detected due to only taking up 1 frame, can't the sense organ of user cause excessive shadow
Ring, user hardly discovers the discontinuity of the frame of influence picture, can thus avoid needing that user is standby could to eliminate ghost,
Influence customer experience, can realize the elimination of ghost again.
Embodiment five
Because some frames of image frame are occupied, i.e., the frame that image frame is included will subtract compared with the frame that original is included
Few, can so cause the overall brightness of image frame reduces.Therefore, on the basis of previous embodiment, the present embodiment is to above-mentioned
The device of the elimination ghost of embodiment does further supplementary notes.It is each in the case where raising image frame can be increased in the present embodiment
The operation of the grey decision-making of sub-pixel, to avoid the reduction of the overall brightness of image frame.
As shown in figure 4, being the structural representation of the device of the elimination ghost according to the present embodiment.The device of the elimination ghost
In addition to the detection module 201 including above-described embodiment, acquisition module 202, compensating module 203 and comparison module 301, also
Can include improving module 401, the raising module 401 is used to improve the grey decision-making of each sub-pixel under image frame.Specifically
Ground, the raising module 401 is used for：
Obtain the initial grey decision-making of each sub-pixel in display screen under image frame；
The GTG threshold value of each pixel is determined according to equation below：
Wherein, GraythIt is GTG threshold value, GraymaxIt is the maximum gray value of each pixel；
Blast grey decision-making is obtained according to equation below：
Wherein, GrayoIt is initial grey decision-making, Grayo' it is blast grey decision-making；
When image frame is shown, the grey decision-making by grey decision-making in each sub-pixel more than or equal to the sub-pixel of GTG threshold value
Maximum gray value is adjusted to, and grey decision-making in each sub-pixel is adjusted to increase less than the sub-pixel of GTG threshold value by initial grey decision-making
Bright grey decision-making.
As shown in figure 4, when it is image frame that comparison module 301 identifies currently displaying picture, it is possible to which triggering is improved
Module 401 performs operation.It is, of course, also possible to after detection module 201 is triggered execution operation, comparison module 301 performs phase
The operation answered, can specifically set according to actual needs, will not be repeated here.
The operating method of the device of the elimination ghost of the present embodiment is consistent with embodiment two, will not be repeated here.
Compared with prior art, the device of the elimination ghost of the present embodiment, can not only disappear in the situation for avoiding user standby
Except ghost, and raising module 401 is adjusted to maximum by by grey decision-making more than or equal to the GTG of the sub-pixel of GTG threshold value
GTG, such as 255 GTGs, and the GTG of the sub-pixel less than GTG threshold value is adjusted to blast grey decision-making, that is, improve image and draw
The grey decision-making of each sub-pixel of face, and then improve the overall brightness of image frame, it is to avoid made because the frame of image frame is occupied
Into the reduction of image frame overall brightness, customer experience is influenceed.
The present invention also provides a kind of display, including the elimination ghost of above-mentioned any embodiment device.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of including above method embodiment is performed；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modifications or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (13)
1. it is a kind of eliminate ghost method, it is characterised in that including：
During image frame shows, take 1 frame time at interval of P frames and sub-pixel is detected, obtain the sub-pixel
Ageing information, wherein, P is the positive integer more than 1；
The compensated information of the sub-pixel is obtained according to the ageing information；
The sub-pixel is compensated according to the compensated information, is decayed with the GTG for reducing the sub-pixel；Wherein, P is
Positive integer more than or equal to 3.
2. it is according to claim 1 eliminate ghost method, it is characterised in that also include：
Improve the grey decision-making of each sub-pixel under the image frame.
3. it is according to claim 2 eliminate ghost method, it is characterised in that each son under the raising image frame
The grey decision-making of pixel, including：
Obtain the initial grey decision-making of each sub-pixel in display screen under the image frame；
The GTG threshold value of each pixel is determined according to equation below：
Wherein, GraythIt is GTG threshold value, GraymaxIt is the maximum gray value of each pixel；
Blast grey decision-making is obtained according to equation below：
Wherein, GrayoIt is initial grey decision-making, Grayo' it is blast grey decision-making；
When the image frame is shown, the sub-pixel by grey decision-making in each sub-pixel more than or equal to the GTG threshold value
Grey decision-making be adjusted to the maximum gray value, and the sub-pixel by grey decision-making in each sub-pixel less than the GTG threshold value
The blast grey decision-making is adjusted to by the initial grey decision-making.
4. it is according to claim 1 eliminate ghost method, it is characterised in that the image frame be tableaux, institute
State before being detected to sub-pixel at interval of P frames 1 frame time of occupancy, also include：
Whether the grey decision-making for comparing the corresponding each pixel of present frame is identical with previous frame；
If comparative result is identical, it is determined that currently displaying picture is tableaux, triggering is performed when taking 1 frame at interval of P frames
Between the operation that is detected to sub-pixel.
5. according to any one of claim 1-4 elimination ghost method, it is characterised in that it is described to be accounted at interval of P frames
Sub-pixel is detected with 1 frame time, obtains the ageing information of the sub-pixel, including：
Detection frame is obtained at interval of P frames, the driving voltage of the sub-pixel being detected under the detection frame is drawn with the image
The driving voltage of the sub-pixel under face is equal；
The corresponding frame of the image frame is substituted using the detection frame；
The detection electric current of the sub-pixel is obtained under the detection frame.
6. it is according to claim 5 eliminate ghost method, it is characterised in that it is described according to the ageing information obtain institute
The compensated information for stating sub-pixel includes：
Offset voltage of the sub-pixel under the predeterminated voltage is obtained according to the detection electric current；
It is described according to the compensated information sub-pixel is compensated including：Adjust the driving voltage of the sub-pixel so that
The actual current of the sub-pixel reaches initial current, and the driving voltage after adjustment is equal to the offset voltage and the default electricity
Pressure sum, the electric current when initial current is the unaged sub-pixel under the predeterminated voltage.
7. it is a kind of eliminate ghost device, it is characterised in that including：
Detection module, during being shown in image frame, takes 1 frame time and sub-pixel is detected at interval of P frames, obtains
The ageing information of the sub-pixel is taken, wherein, P is the positive integer more than 1；
Acquisition module, the compensated information for obtaining the sub-pixel according to the ageing information；
Compensating module, for being compensated to the sub-pixel according to the compensated information, to reduce the GTG of the sub-pixel
Decay；Wherein, P is the positive integer more than or equal to 3.
8. it is according to claim 7 eliminate ghost device, it is characterised in that also include：
Module is improved, the grey decision-making for improving each sub-pixel under the image frame.
9. it is according to claim 8 eliminate ghost device, it is characterised in that the raising module specifically for：
Obtain the initial grey decision-making of each sub-pixel in display screen under the image frame；
The GTG threshold value of each pixel is determined according to equation below：
Wherein, GraythIt is GTG threshold value, GraymaxIt is the maximum gray value of each pixel；
Blast grey decision-making is obtained according to equation below：
Wherein, GrayoIt is initial grey decision-making, Grayo' it is blast grey decision-making；
When the image frame is shown, the sub-pixel by grey decision-making in each sub-pixel more than or equal to the GTG threshold value
Grey decision-making be adjusted to the maximum gray value, and the sub-pixel by grey decision-making in each sub-pixel less than the GTG threshold value
The blast grey decision-making is adjusted to by the initial grey decision-making.
10. it is according to claim 7 eliminate ghost device, it is characterised in that the image frame be tableaux, institute
The device for eliminating ghost is stated also including comparison module, the comparison module is used for：
Whether the grey decision-making for comparing the corresponding each pixel of present frame is identical with previous frame；
If comparative result is identical, it is determined that currently displaying picture is tableaux, triggering is performed when taking 1 frame at interval of P frames
Between the operation that is detected to sub-pixel.
The device of the 11. elimination ghost according to any one of claim 7-10, it is characterised in that the detection module tool
Body is used for：
Detection frame is obtained at interval of P frames, the driving voltage of the sub-pixel being detected under the detection frame is drawn with the image
The driving voltage of the sub-pixel under face is equal；
The corresponding frame of the image frame is substituted using the detection frame；
The detection electric current of the sub-pixel is obtained under the detection frame.
12. it is according to claim 10 eliminate ghosts devices, it is characterised in that the acquisition module specifically for：Root
Offset voltage of the sub-pixel under predeterminated voltage is obtained according to the detection electric current；
The compensating module specifically for：The driving voltage of the sub-pixel is adjusted so that the electric current of the sub-pixel reaches initially
Electric current, the driving voltage after adjustment is equal to the offset voltage and the predeterminated voltage sum, and the initial current is the son
Electric current when pixel is unaged under the predeterminated voltage.
A kind of 13. displays, it is characterised in that the device including the elimination ghost any one of claim 7-12.
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| CN201510511558.0A CN105096829B (en) | 2015-08-18 | 2015-08-18 | Eliminate method, device and the display of ghost |
| PCT/CN2016/074381 WO2017028518A1 (en) | 2015-08-18 | 2016-02-23 | Method and device for eliminating ghost, and display |
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| CN201510511558.0A CN105096829B (en) | 2015-08-18 | 2015-08-18 | Eliminate method, device and the display of ghost |
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Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105913800B (en) * | 2016-04-25 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of display control method, device and intelligent terminal based on optical sensor |
| CN105741768B (en) * | 2016-04-25 | 2018-05-29 | 广东欧珀移动通信有限公司 | A kind of display control method of intelligent terminal, device and intelligent terminal |
| 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 |
| CN107068053B (en) * | 2017-02-21 | 2019-07-09 | 京东方科技集团股份有限公司 | Compensation data method and compensation device, the display device of OLED display |
| US10515583B2 (en) | 2017-04-24 | 2019-12-24 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Brightness compensation system and brightness compensating method of OLED display device |
| CN106847180B (en) * | 2017-04-24 | 2019-01-22 | 深圳市华星光电半导体显示技术有限公司 | The luminance compensation system and luminance compensation method of OLED display |
| CN107424561B (en) * | 2017-08-30 | 2020-01-07 | 京东方科技集团股份有限公司 | Organic light-emitting display panel, driving method and driving device thereof |
| CN107665665A (en) * | 2017-10-27 | 2018-02-06 | 康佳集团股份有限公司 | A kind of guard method of OLED display screen, intelligent television and storage medium |
| CN108628564A (en) * | 2018-05-04 | 2018-10-09 | 深圳创维－Rgb电子有限公司 | Eliminate method, apparatus, storage medium and the display terminal of display screen ghost |
| CN108766360B (en) * | 2018-05-23 | 2020-04-10 | 京东方科技集团股份有限公司 | Display panel driving method and display device |
| CN108831380A (en) * | 2018-06-11 | 2018-11-16 | 深圳市华星光电半导体显示技术有限公司 | Oled panel temperature compensation system and oled panel temperature-compensation method |
| FR3087582B1 (en) * | 2018-10-22 | 2021-09-03 | Microoled | DAY AND NIGHT DISPLAY DEVICE |
| CN109377945B (en) * | 2018-11-08 | 2021-01-22 | 京东方科技集团股份有限公司 | Pixel compensation method, device and system |
| CN109509445B (en) * | 2018-12-19 | 2021-02-26 | 惠科股份有限公司 | Method and device for eliminating shutdown ghost on panel |
| CN111354287B (en) * | 2018-12-20 | 2021-05-11 | 京东方科技集团股份有限公司 | Method, device and equipment for determining aging attenuation degree of pixel and compensating pixel |
| CN109686303B (en) * | 2019-01-28 | 2021-09-17 | 厦门天马微电子有限公司 | Organic light-emitting display panel, organic light-emitting display device and compensation method |
| CN109584797B (en) * | 2019-02-01 | 2020-11-24 | 京东方科技集团股份有限公司 | Compensation method and compensation system of display panel and display device |
| CN109613730B (en) * | 2019-02-25 | 2022-09-16 | 苏州长风航空电子有限公司 | Method for detecting image residue of LCD monitor |
| CN111951741B (en) * | 2019-05-15 | 2022-04-12 | 华为技术有限公司 | Method, device and storage medium for eliminating ghost |
| TWI711024B (en) | 2019-08-07 | 2020-11-21 | 宏碁股份有限公司 | Self-illuminating display apparatus and display frame compensation method thereof |
| CN110610680A (en) * | 2019-09-30 | 2019-12-24 | 武汉天马微电子有限公司 | Display method, display panel, display device, luminance correction method, and storage medium |
| CN111679804B (en) * | 2020-06-02 | 2023-05-02 | 深圳创维－Rgb电子有限公司 | OLED display compensation method, system, display device and storage medium |
| CN111710308A (en) * | 2020-06-11 | 2020-09-25 | Oppo（重庆）智能科技有限公司 | Display method, display, terminal and storage medium |
| CN112419976B (en) * | 2020-09-30 | 2022-04-12 | Tcl华星光电技术有限公司 | Driving method of display device and display device |
| CN112951161B (en) * | 2021-02-24 | 2023-04-28 | 厦门天马微电子有限公司 | Display panel driving method and display device |
| CN114694611A (en) * | 2022-01-10 | 2022-07-01 | 重庆翰博显示科技研发中心有限公司 | Novel liquid crystal residual image processing technology for Mini LED display screen |
| CN114613327A (en) * | 2022-03-10 | 2022-06-10 | 海信视像科技股份有限公司 | OLED display device and OLED display method |
| CN114898699A (en) * | 2022-06-29 | 2022-08-12 | Tcl华星光电技术有限公司 | Display control method and display panel |
| CN115527492A (en) * | 2022-08-16 | 2022-12-27 | 合肥京东方卓印科技有限公司 | Display panel, display method thereof and display device |
| CN117288761B (en) * | 2023-11-27 | 2024-02-06 | 天津市海迅科技发展有限公司 | Flaw detection classification evaluation method and system based on test materials |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG120889A1 (en) * | 2001-09-28 | 2006-04-26 | Semiconductor Energy Lab | A light emitting device and electronic apparatus using the same |
| JP4506229B2 (en) * | 2004-03-26 | 2010-07-21 | ソニー株式会社 | Burn-in correction device, display device, image processing device, program, and recording medium |
| JP4530014B2 (en) * | 2007-09-20 | 2010-08-25 | ソニー株式会社 | Display device and display driving method |
| CN101369405A (en) * | 2008-10-13 | 2009-02-18 | 南京Lg新港显示有限公司 | Compensation apparatus for adjusting display brightness and regulation method of the compensation apparatus |
| JP5272885B2 (en) * | 2009-05-12 | 2013-08-28 | ソニー株式会社 | Display device and control method of light detection operation |
| CA2688870A1 (en) * | 2009-11-30 | 2011-05-30 | Ignis Innovation Inc. | Methode and techniques for improving display uniformity |
| CN103165071A (en) * | 2011-12-14 | 2013-06-19 | 矽恩微电子(厦门)有限公司 | System and method for removing light-emitting diode (LED) array scanning ghost shadow |
| JP2013142775A (en) * | 2012-01-11 | 2013-07-22 | Sony Corp | Display device, electronic apparatus, displaying method, and program |
| CN104318893B (en) * | 2014-09-29 | 2019-02-22 | 青岛海信电器股份有限公司 | A kind of method and system for eliminating still image display area ghost defect |
| 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 |
-
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