CN110277058A - The luminance compensation method and its device of organic light emitting display panel - Google Patents
The luminance compensation method and its device of organic light emitting display panel Download PDFInfo
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- CN110277058A CN110277058A CN201910575514.2A CN201910575514A CN110277058A CN 110277058 A CN110277058 A CN 110277058A CN 201910575514 A CN201910575514 A CN 201910575514A CN 110277058 A CN110277058 A CN 110277058A
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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]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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Abstract
The invention discloses a kind of luminance compensation method of organic light emitting display panel and its devices, comprising: obtains initial compensation coefficient；Product-factor is set, piecewise function relationship is met between Product-factor and the grayscale of object pixel；Wherein, when the grayscale of object pixel is minimum gray scale and highest grayscale, in the first grayscale or four grayscale, Product-factor is 0；When the grayscale of object pixel when sampling grayscale, in the second grayscale or third grayscale, Product-factor 1；When the grayscale of object pixel is within the first grayscale stage, Product-factor and grayscale are in the first linear relationship；When the grayscale of object pixel is within the second grayscale stage, Product-factor and grayscale are in the second linear relationship；Practical penalty coefficient is obtained, practical penalty coefficient is used to compensate the brightness of object pixel.There are black picture light leakages, low ash rank overcompensation when the present invention solves the problems, such as in the prior art to organic light emitting display panel progress luminance compensation.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of luminance compensation side of organic light emitting display panel
Method and its device.
Background technique
Organic light emitting display panel realized by Organic Light Emitting Diode and shown, the characteristic of each Organic Light Emitting Diode it
Between have differences, under same drive voltage, the electric current of the Organic Light Emitting Diodes of different characteristics output can be different, You Jifa
The nuance of electric current, which will lead to, between optical diode there is the phenomenon that brightness unevenness in organic light emitting display panel, need to pass through
Partial pixel in organic light emitting display panel is compensated, the phenomenon that correct brightness unevenness in organic light emitting display panel,
So that the brightness of organic light emitting display panel is shown unanimously.
When in the prior art compensating pixel in organic light emitting display panel, need to carry out by sampling grayscale calculating
The penalty coefficient of the pixel of compensation is all then to be using identical compensation needing any grayscale of the pixel compensated
Number, can have black picture light leakage when compensating using this method, than sampling grayscale low low ash rank overcompensation the phenomenon that, mend
It is poor to repay effect.
Summary of the invention
In view of this, being used for the present invention provides a kind of luminance compensation method of organic light emitting display panel and its device
There are black picture light leakages, low ash rank overcompensation when solving to carry out luminance compensation to organic light emitting display panel in the prior art
Problem.
In a first aspect, the present invention provides a kind of luminance compensation methods of organic light emitting display panel, comprising: according to one
Or intrinsic brilliance and object brightness of multiple object pixels when sampling grayscale, obtain initial compensation coefficient；Product-factor is set,
Meet piecewise function relationship between Product-factor and the grayscale of object pixel；Wherein, when the grayscale of object pixel is minimum gray scale
When with highest grayscale, Product-factor is 0；When the grayscale of object pixel is when sampling grayscale, Product-factor 1；In most low ash
Between rank and highest grayscale, the first grayscale, the second grayscale, third grayscale and the 4th grayscale are sequentially increased；When the ash of object pixel
Rank is in the first grayscale or four grayscale, Product-factor 0, when the grayscale of object pixel is in the second grayscale or third grayscale
When, Product-factor 1；When the grayscale of object pixel is within the first grayscale stage, Product-factor and grayscale are in the first linear pass
System, the first grayscale stage is between the first grayscale and the second grayscale；When the grayscale of object pixel is within the second grayscale stage,
Product-factor and grayscale are in the second linear relationship, and the second grayscale stage is between third grayscale and the 4th grayscale；Sample grayscale
Between the first grayscale stage and the second grayscale stage；The product of initial compensation coefficient and Product-factor is rounded to obtain practical benefit
Coefficient is repaid, practical penalty coefficient is used to compensate the brightness of object pixel.
Second aspect, the present invention provides a kind of luminance compensating mechanisms of organic light emitting display panel, including initial compensation
Coefficient setting module, Product-factor setting module and practical compensating module；Initial compensation coefficient setting module, for according to one
Or intrinsic brilliance and object brightness of multiple object pixels when sampling grayscale generate initial compensation coefficient；Product-factor sets mould
Block meets piecewise function relationship for generating Product-factor between Product-factor and the grayscale of object pixel；Wherein, work as target
When the grayscale of pixel is minimum gray scale and highest grayscale, Product-factor is 0；When the grayscale of object pixel is when sampling grayscale,
Product-factor is 1；Between minimum gray scale and highest grayscale, the first grayscale, the second grayscale, third grayscale and the 4th grayscale are successively
Increase；When the grayscale of object pixel is in the first grayscale or four grayscale, Product-factor 0, when the grayscale of object pixel exists
When the second grayscale or third grayscale, Product-factor 1；When the grayscale of object pixel is within the first grayscale stage, Product-factor
It is in the first linear relationship with grayscale, the first grayscale stage is between the first grayscale and the second grayscale；When the grayscale of object pixel
When within the second grayscale stage, Product-factor and grayscale are in the second linear relationship, and the second grayscale stage was located at third grayscale and the
Between four grayscale；Grayscale is sampled between the first grayscale stage and the second grayscale stage；Practical compensating module, for according to just
The product of beginning penalty coefficient and Product-factor, which is rounded, generates practical penalty coefficient, and compensates the target according to practical penalty coefficient
The brightness of pixel.
Compared with prior art, the luminance compensation method and its device of organic light emitting display panel provided by the invention, until
Realize less it is following the utility model has the advantages that
In the application, practical penalty coefficient is used to compensate the brightness of object pixel in organic light emitting display panel, practical to mend
The product rounding that coefficient is initial compensation coefficient and Product-factor is repaid, the corresponding practical penalty coefficient of different object pixels is not to the utmost
It is identical, the brightness of object pixel is targetedly compensated by practical penalty coefficient, so that the compensated brightness of object pixel connects
Closely or reach its object brightness, to improve the display effect of organic light emitting display panel.Wherein, initial compensation coefficient is according to one
Intrinsic brilliance and object brightness of a or multiple object pixels when sampling grayscale generate.The grayscale of Product-factor and object pixel
Between meet piecewise function relationship, when the grayscale of object pixel is when sampling grayscale, due to initial compensation coefficient according to one or
Intrinsic brilliance and object brightness of multiple object pixels when sampling grayscale generate, and Product-factor is 1 at this time, at this time practical compensation
Coefficient is initial compensation coefficient.When the grayscale of object pixel is minimum gray scale, the grayscale of object pixel is 0, i.e. object pixel
The phenomenon that when darkly picture is shown, Product-factor 0, practical penalty coefficient is 0 at this time, effectively avoids black picture light leakage.Work as mesh
When the grayscale for marking pixel is highest grayscale, the brightness of object pixel is higher, and the difference between intrinsic brilliance and object brightness can
It ignores, practical penalty coefficient is 0 display effect that will not influence organic light emitting display panel at this time, and practical compensation at this time
Coefficient is 0 energy consumption that organic light emitting display panel is effectively reduced.Between minimum gray scale and highest grayscale, the first grayscale, second
Grayscale, third grayscale and the 4th grayscale are sequentially increased.When the grayscale of object pixel is in the first grayscale, the brightness of object pixel compared with
Low, the difference between the intrinsic brilliance and object brightness of object pixel is smaller, and Product-factor is 0 at this time, i.e., practical penalty coefficient
It is 0, will not influence the display effect of organic light emitting display panel.When the grayscale of object pixel is in four grayscale, object pixel
Intrinsic brilliance and object brightness between the difference is insignificant, practical penalty coefficient is that 0 will not influence organic light emission at this time
The display effect of display panel.When the grayscale of object pixel is in the second grayscale or third grayscale, Product-factor 1 is real at this time
Border penalty coefficient is initial compensation coefficient.Sampling grayscale can be between the first grayscale stage and the second grayscale stage.First ash
The rank stage between the first grayscale and the second grayscale, when the grayscale of object pixel is within the first grayscale stage, object pixel
Intrinsic brilliance and object brightness between difference be gradually increased when organic light emitting display panel being caused to show irregular patch by
The case where gradually deepening, if being all made of identical practical penalty coefficient will cause object pixel in the part ash lower than sampling grayscale
Occurs the phenomenon that overcompensation when rank, therefore when the grayscale of object pixel is within the first grayscale stage, Product-factor and grayscale are in
First linear relationship, i.e. grayscale are gradually increased, and corresponding Product-factor also increases with it, and practical penalty coefficient also increases with it,
Between the intrinsic brilliance and object brightness for effectively solving the object pixel caused by increasing in the first grayscale stage with grayscale
The problem of irregular patch is gradually deepened when the display of organic light emitting display panel caused by difference is gradually increased, effectively improves organic
The display effect of light emitting display panel.Second grayscale stage between third grayscale and the 4th grayscale, when the ash of object pixel
When rank is within the second grayscale stage, the brightness of object pixel is more and more brighter, between the intrinsic brilliance and object brightness of object pixel
Difference be gradually reduced, at this point, Product-factor and grayscale are in the second linear relationship, i.e. grayscale is gradually increased, corresponding product because
Son also reduces therewith, and practical penalty coefficient is gradually reduced the display effect that will not influence organic light emitting display panel at this time, effectively
Reduce the energy consumption of organic light emitting display panel.
Certainly, implementing any of the products of the present invention specific needs while need not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the floor map of organic light emitting display panel in the prior art；
Fig. 2 is a kind of flow diagram of the luminance compensation method of organic light emitting display panel provided by the invention；
Fig. 3 is a kind of corresponding relationship of the grayscale of Product-factor and object pixel provided by the invention；
Fig. 4 is a kind of floor map of organic light emitting display panel compensated provided by the invention；
Fig. 5 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention；
Fig. 6 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention；
Fig. 7 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention；
Fig. 8 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention；
Fig. 9 is the flow diagram of step 101 in the luminance compensation method for the organic light emitting display panel that Fig. 2 is provided；
Figure 10 is the flow diagram of the luminance compensation method of another organic light emitting display panel provided by the invention；
Figure 11 is a kind of structural schematic diagram of the luminance compensating mechanism of organic light emitting display panel provided by the invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is the floor map of organic light emitting display panel in the prior art.As shown in Figure 1, in the prior art, having
The test pictures that machine light emitting display panel 100 is shown have irregular patch, multiple target pictures of organic light emitting display panel 100
The brightness irregularities of element.This motion inventor has found that multiple object pixels of organic light emitting display panel 100 same
Its intrinsic brilliance is different when one grayscale, and the test pictures for causing organic light emitting display panel 100 to show have irregular patch.It is existing
Have and object pixel in organic light emitting display panel 100 is compensated in technology to solve the display of organic light emitting display panel 100
Test pictures there is the problem of irregular patch, specifically, calculating the benefit of pixel for needing to compensate by sampling grayscale
Coefficient is repaid, is all then using identical penalty coefficient, using the party needing any grayscale of the object pixel compensated
Method can have black picture light leakage when compensating, than sampling grayscale low low ash rank overcompensation the phenomenon that, compensation effect is poor.
To solve the above-mentioned problems, the embodiment of the present invention provide a kind of organic light emitting display panel luminance compensation method and
Its device.
Fig. 2 is a kind of flow diagram of the luminance compensation method of organic light emitting display panel provided by the invention, and Fig. 3 is
A kind of corresponding relationship of the grayscale of Product-factor and object pixel provided by the invention,
Fig. 4 is a kind of floor map of organic light emitting display panel compensated provided by the invention, with reference to Fig. 2-figure
4, in embodiments of the present invention, the luminance compensation method of organic light emitting display panel is more in organic light emitting display panel for compensating
The brightness of a object pixel 210, the present embodiment provides a kind of luminance compensation methods of organic light emitting display panel, comprising:
Step 101, intrinsic brilliance and object brightness according to one or more object pixels when sampling grayscale obtain just
Beginning penalty coefficient；
Step 102, setting Product-factor, meet piecewise function relationship between Product-factor and the grayscale of object pixel；Its
In, when the grayscale of object pixel is minimum gray scale and highest grayscale, Product-factor is 0；When the grayscale of object pixel is being adopted
When sample grayscale, Product-factor 1；
Between minimum gray scale and highest grayscale, the first grayscale, the second grayscale, third grayscale and the 4th grayscale successively increase
Greatly；When the grayscale of object pixel is in the first grayscale or four grayscale, Product-factor 0, when the grayscale of object pixel is
When two grayscale or third grayscale, Product-factor 1；When the grayscale of object pixel is within the first grayscale stage, Product-factor and
Grayscale is in the first linear relationship, and the first grayscale stage is between the first grayscale and the second grayscale；When the grayscale of object pixel exists
When in the second grayscale stage, Product-factor and grayscale are in the second linear relationship, and the second grayscale stage was located at third grayscale and the 4th
Between grayscale；Grayscale is sampled between the first grayscale stage and the second grayscale stage.
The product of step 103, initial compensation coefficient and Product-factor is rounded to obtain practical penalty coefficient, practical penalty coefficient
For compensating the brightness of object pixel.
Specifically, practical penalty coefficient M is used to compensate the brightness of object pixel 210 in organic light emitting display panel, it is practical
Penalty coefficient M is initial compensation COEFFICIENT K and the product rounding of Product-factor G, passes through practical penalty coefficient M and compensates object pixel
210 brightness, so that the compensated brightness of object pixel 21 is close to or up to its object brightness, to improve organic light emitting display
The display effect of panel.
Wherein, intrinsic brilliance and mesh of the initial compensation COEFFICIENT K according to one or more object pixels 210 when sampling grayscale
Brightness is marked to generate.Meet piecewise function relationship between Product-factor G and the grayscale g of object pixel 210, when object pixel 210
Reality of the grayscale when sampling grayscale, due to initial compensation COEFFICIENT K according to one or more object pixels 210 when sampling grayscale
Brightness and object brightness generate, and Product-factor is 1 at this time, and practical penalty coefficient M is initial compensation COEFFICIENT K at this time.Work as target picture
When the grayscale of element 210 is minimum gray scale, the grayscale of object pixel 210 is 0, i.e. object pixel 210 is when darkly picture is shown, product
The phenomenon that factor is 0, and practical penalty coefficient M is 0 at this time, effectively avoids black picture light leakage.When the grayscale of object pixel 210 is most
When high gray, the brightness of object pixel 210 is higher, the difference is insignificant between intrinsic brilliance and object brightness, at this time
Practical penalty coefficient M is 0 display effect that will not influence organic light emitting display panel, and practical penalty coefficient M is 0 effective at this time
Reduce the energy consumption of organic light emitting display panel.
Incorporated by reference to Fig. 3 and Fig. 4, between minimum gray scale and highest grayscale, the first grayscale g1, the second grayscale g2, third ash
Rank g3 and the 4th grayscale g4 are sequentially increased.When the grayscale of object pixel 210 is in the first grayscale g1, the brightness of object pixel 210
Lower, the difference between the intrinsic brilliance and object brightness of object pixel 210 is smaller, and Product-factor is 0 at this time, i.e., practical compensation
Coefficient M is 0, will not influence the display effect of organic light emitting display panel.When the grayscale of object pixel 210 is in the 4th grayscale g4
When, the difference is insignificant between the intrinsic brilliance and object brightness of object pixel 210, practical penalty coefficient M is not 0 not at this time
It will affect the display effect of organic light emitting display panel.
When the grayscale of object pixel 210 is in the second grayscale g2 or third grayscale g3, Product-factor 1 is practical at this time to mend
Repaying coefficient M is initial compensation COEFFICIENT K.Sampling grayscale can be between the first grayscale stage and the second grayscale stage, i.e., sampling is grey
Rank or for the second grayscale g2 or be third grayscale g3 or between the second grayscale g2 and third grayscale g3.First grayscale stage
Between the first grayscale g1 and the second grayscale g2, when the grayscale of object pixel 210 is within the first grayscale stage, object pixel
Difference between 210 intrinsic brilliance and object brightness is gradually increased irregular patch when organic light emitting display panel being caused to show
The case where gradually deepening, if being all made of identical practical penalty coefficient M will cause object pixel 210 lower than sampling grayscale
Occurs the phenomenon that overcompensation when part gray-scale, therefore when the grayscale of object pixel 210 is within the first grayscale stage, Product-factor
G and grayscale g is in the first linear relationship, i.e. grayscale g is gradually increased, and corresponding Product-factor G is also increased with it, practical penalty coefficient
M is also increased with it, and effectively solves the intrinsic brilliance of object pixel 210 caused by increasing within the first grayscale stage with grayscale g
Irregular patch is gradually deepened when the display of organic light emitting display panel caused by the difference between object brightness is gradually increased
Phenomenon effectively improves the display effect of organic light emitting display panel.
Second grayscale stage between third grayscale g3 and the 4th grayscale g4, when the grayscale of object pixel 210 is second
When in the grayscale stage, the brightness of object pixel 210 is more and more brighter, between the intrinsic brilliance and object brightness of object pixel 210
Difference is gradually reduced, at this point, Product-factor G and grayscale g is in the second linear relationship, i.e. grayscale g is gradually increased, corresponding product because
Sub- G also reduces therewith, and practical penalty coefficient M is gradually reduced the display effect that will not influence organic light emitting display panel at this time, has
Effect reduces the energy consumption of organic light emitting display panel.
Practical penalty coefficient M is initial compensation COEFFICIENT K and the product rounding of Product-factor G in the present invention, wherein initial to mend
Repaying COEFFICIENT K can generate according to intrinsic brilliance of one or more object pixels 210 when sampling grayscale and object brightness, product because
Meet piecewise function relationship between sub- G and the grayscale g of object pixel 210, to form difference without using longer time to be fitted
The penalty coefficient of grayscale effectively reduces the production time, improves productivity effect.
It should be noted that illustratively showing minimum gray scale in the present embodiment is 0, highest grayscale is 255, in this hair
Highest grayscale can also be other numerical value in bright other embodiments, and the present invention no longer repeats.
With continued reference to Fig. 2-Fig. 4, optionally, the luminance compensation method of organic light emitting display panel further include:
The grayscale in the first setting range is traversed, test target pixel 210 passes through the compensated brightness of initial compensation COEFFICIENT K
JND value between the object brightness of object pixel 210, when JND value is less than or equal to 2.3 in a grayscale, and in the grayscale
Next grayscale when JND value be greater than 2.3, then the grayscale be the second grayscale g2, wherein the first setting range is by target gray scale to most
Low ash rank；
Traverse the grayscale in the second setting range, the JND between the intrinsic brilliance and object brightness of test target pixel 210
Value, when in a grayscale, JND value is greater than 2.3, and in next grayscale of the grayscale, JND value is less than or equal to 2.3, then the grayscale
For third grayscale g3, wherein the second setting range is by target gray scale to highest grayscale.
Specifically, traversal is by the grayscale within the scope of target gray scale to minimum gray scale, test target pixel 210 is by initially mending
Repay the JND value between the compensated brightness of COEFFICIENT K and the object brightness of object pixel 210, JND (Just-Noticeable
Difference, minimum can visual differences) value is smaller, and the compensated brightness of initial compensation COEFFICIENT K and the target of object pixel 210 are bright
Difference between degree is smaller, and when JND value is less than or equal to 2.3, it is compensated bright that initial compensation COEFFICIENT K cannot be distinguished by naked eyes
Difference between degree and the object brightness of object pixel 210.When in a grayscale, the indistinguishable object pixel 210 of naked eyes passes through
Difference between the compensated brightness of initial compensation COEFFICIENT K and the object brightness of object pixel 210, and in next ash of the grayscale
Naked eyes recognizable object pixel 210 passes through the object brightness of initial compensation COEFFICIENT K compensated brightness and object pixel 210 when rank
Between difference when, the grayscale be the second grayscale g2.
Traversal is by target gray scale to the grayscale in highest grey-scale range, the intrinsic brilliance and target of test target pixel 210
JND value between brightness, when the intrinsic brilliance Yu object brightness of the object pixel 210 in a grayscale can carry out area by naked eyes
Point, and the intrinsic brilliance with object brightness of object pixel 210 are not available for distinguishing by naked eyes in next grayscale of the grayscale,
Then the grayscale is third grayscale g3.
With continued reference to Fig. 2-Fig. 4, optionally, wherein third ash is equipped between the first grayscale stage and the second grayscale stage
In the rank stage, when the grayscale of object pixel is within the third grayscale stage, Product-factor is 1, and the third grayscale stage is located at second
Between grayscale g2 and third grayscale g3, and samples grayscale and be located in the third grayscale stage.
Specifically, sampling grayscale was located in the third grayscale stage, the third grayscale stage is located at the second grayscale g2 and third ash
Between rank g3, when the grayscale of object pixel 210 is when sampling grayscale, since initial compensation COEFFICIENT K is according to one or more targets
Intrinsic brilliance and object brightness of the pixel 210 when sampling grayscale generate, and Product-factor is 1 at this time, at this time practical penalty coefficient M
For initial compensation COEFFICIENT K, when the grayscale of object pixel 210 is within the third grayscale stage, Product-factor is 1, practical at this time
Penalty coefficient M is initial compensation COEFFICIENT K, and practical penalty coefficient M can compensate the brightness of object pixel 210, reduces mesh
Mark the difference between the intrinsic brilliance and object brightness of pixel 210, the display effect of effectively very high organic light emitting display panel.
Fig. 5 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention, with reference to Fig. 2,
Fig. 4 and Fig. 5, optionally, wherein the 4th grayscale stage and the 5th grayscale are equipped between the first grayscale stage and the second grayscale stage
Stage；
When the grayscale of object pixel 210 is within the 4th grayscale stage, Product-factor G and grayscale g are in third linear relationship,
4th grayscale stage, the second grayscale was located at the first grayscale g1 and the 5th grayscale g5 between the second grayscale g2 and the 5th grayscale g5
Between, when the grayscale of object pixel 210 is in five grayscale, Product-factor G1, wherein 1 G1≤2 <；
When the grayscale of object pixel 210 is within the 5th grayscale stage, Product-factor G and grayscale g are in the 4th linear relationship,
5th grayscale stage, the 5th grayscale was located at the second grayscale g2 and third grayscale g3 between the 5th grayscale g5 and third grayscale g3
Between；
Second grayscale g2 is sampling grayscale or third grayscale g3 is sampling grayscale.
Specifically, the second grayscale g2 is sampling grayscale or third grayscale g3 is sampling grayscale, Product-factor is 1 at this time, this
Shi Shiji penalty coefficient M is initial compensation COEFFICIENT K.Traversal is passed through by the grayscale within the scope of the second grayscale g2 to third grayscale g3
Practical penalty coefficient M compensates the brightness of object pixel 210, wherein Product-factor G1,1 G1≤2 <, test target
JND value between the compensated brightness of pixel 210 and object brightness, when the intrinsic brilliance of the object pixel 210 in a grayscale
JND value between object brightness is less than or equal to 2.3, and in a upper grayscale for the grayscale object pixel 210 intrinsic brilliance
JND value between object brightness is greater than 2.3, then the grayscale is the 5th grayscale g5.4th grayscale stage was located at the second grayscale g2
And the 5th between grayscale g5, when the grayscale of object pixel 210 is within the 4th grayscale stage, practical penalty coefficient M is initial mends
When repaying COEFFICIENT K, organic light emitting display face caused by difference between the compensated brightness of object pixel 210 and object brightness is larger
The phenomenon that there are irregular patches when plate is shown.And when the grayscale of object pixel 210 is within the 4th grayscale stage, with target
The increase of the grayscale of pixel 210, the difference between the intrinsic brilliance and object brightness of object pixel 210 are also gradually increased, product
Factor G and grayscale g is in third linear relationship, i.e. grayscale g is gradually increased, and corresponding Product-factor G is also increased with it, practical to compensate
Coefficient M is also increased with it, and effectively solves the reality of object pixel 210 caused by increasing within the 4th grayscale stage with grayscale g
Irregular patch gradually adds when the display of organic light emitting display panel caused by the difference between brightness and object brightness is gradually increased
Deep phenomenon, further increases the display effect of organic light emitting display panel.
5th grayscale stage between the 5th grayscale g5 and third grayscale g3, when the grayscale of object pixel 210 is the 5th
When in the grayscale stage, the brightness of object pixel 210 is more and more brighter, between the intrinsic brilliance and object brightness of object pixel 210
Difference is gradually reduced, at this point, Product-factor G and grayscale g is in the 4th linear relationship, i.e. grayscale g is gradually increased, corresponding product because
Sub- G also reduces therewith, and practical penalty coefficient M is gradually reduced the display effect that will not influence organic light emitting display panel at this time, has
Effect reduces the energy consumption of organic light emitting display panel.
It should be noted that the G1 that shows of exemplary is 1.4 in Fig. 5, in other embodiments of the present invention, G1 can be with
It is configured according to actual production demand.
Fig. 6 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention, with reference to Fig. 2,
Fig. 4 and Fig. 6, optionally, wherein the 6th grayscale stage, the 7th grayscale are equipped between the first grayscale stage and the second grayscale stage
Stage and the 8th grayscale stage；
When the grayscale of object pixel 210 is within the 6th grayscale stage, Product-factor G and grayscale g are in the 5th linear relationship,
6th grayscale stage, the second grayscale g2 was located at the first grayscale g1 and the 6th grayscale between the second grayscale g2 and the 6th grayscale g6
Between g6, when the grayscale of object pixel 210 is in six grayscale, Product-factor G2, wherein 1 G2≤2 <；
When the grayscale of object pixel 210 is within the 7th grayscale stage, Product-factor is G2, and the 7th grayscale stage was located at
6th grayscale g6 to the 7th grayscale g7；
When the grayscale of object pixel 210 is within the 8th grayscale stage, Product-factor G and grayscale g are in the 6th linear relationship,
8th grayscale stage is between the 7th grayscale g7 and third grayscale g3；
Second grayscale g2 is sampling grayscale or third grayscale g3 is sampling grayscale.
Specifically, the second grayscale g2 is sampling grayscale or third grayscale g3 is sampling grayscale, Product-factor is 1 at this time, this
Shi Shiji penalty coefficient M is initial compensation COEFFICIENT K.The grayscale in third setting range is traversed, test target pixel 210 passes through reality
JND value between the compensated brightness of border penalty coefficient M (Product-factor is 1 at this time) and the object brightness of object pixel 210, when
JND value is gradually increased before a certain grayscale, and when the JND value in the grayscale is identical with the JND value of its next grayscale, then
The grayscale is the 6th grayscale g6, wherein third setting range is by the second grayscale g2 to third grayscale g3.Traverse the 4th setting range
Interior grayscale, test target pixel 210 pass through the compensated brightness of practical penalty coefficient M (Product-factor is 1 at this time) and target
JND value between the object brightness of pixel 210, when JND value is gradually increased before a certain grayscale, and the JND in the grayscale
When being worth identical with the JND value of its next grayscale, then the grayscale is the 7th grayscale g7, wherein the 4th setting range is by third grayscale
G3 to the 6th grayscale g6.
6th grayscale stage was located at grayscale between the second grayscale g2 and the 6th grayscale g6, when the grayscale of object pixel 210
When positioned at the 6th grayscale stage, Product-factor G and grayscale g are in the 5th linear relationship, with the increasing of the grayscale of object pixel 210
Greatly, the difference between the intrinsic brilliance and object brightness of object pixel 210 is also gradually increased, and Product-factor G and grayscale g are in the 5th
Linear relationship, i.e. grayscale g are gradually increased, and corresponding Product-factor G is also increased with it, and practical penalty coefficient M is also increased with it, and are had
Effect solves between the intrinsic brilliance and object brightness of the object pixel 210 caused by increasing in the 5th grayscale stage with grayscale g
Difference be gradually increased caused by organic light emitting display panel the phenomenon that irregular patch is gradually deepened when showing, further increase
The display effect of organic light emitting display panel.
7th grayscale stage the 6th grayscale g6 to the 7th grayscale g7, when the grayscale of object pixel 210 is in the 7th grayscale stage
When interior, Product-factor is G2, and practical penalty coefficient M is that initial compensation COEFFICIENT K is rounded multiplied by G2 at this time, practical penalty coefficient
M can compensate the brightness of object pixel 210, reduce the difference between the intrinsic brilliance and object brightness of object pixel 210,
Effectively improve the display effect of organic light emitting display panel.
8th grayscale stage between the 7th grayscale g7 and third grayscale g3, when the grayscale of object pixel 210 is the 8th
When in the grayscale stage, the brightness of object pixel 210 is more and more brighter, between the intrinsic brilliance and object brightness of object pixel 210
Difference is gradually reduced, at this point, Product-factor G and grayscale g is in the 6th linear relationship, i.e. grayscale g is gradually increased, corresponding product because
Sub- G also reduces therewith, and practical penalty coefficient M is gradually reduced the display effect that will not influence organic light emitting display panel at this time, has
Effect reduces the energy consumption of organic light emitting display panel.
It should be noted that the G2 that shows of exemplary is 1.4 in Fig. 6, in other embodiments of the present invention, G2 can be with
It is configured according to actual production demand.
With continued reference to Fig. 2-Fig. 4, optionally, wherein it was equipped with for the 9th grayscale stage between minimum gray scale and the first grayscale g1,
First grayscale g1 is located between minimum gray scale and the second grayscale g2；
When the grayscale of object pixel 210 is within the 9th grayscale stage, Product-factor is 0.
Specifically, traversal the 5th setting range in grayscale, test target pixel 210 intrinsic brilliance (do not compensate at this time,
Product-factor is 0) the JND value between the object brightness of object pixel 210, when in a grayscale, JND value is less than or equal to
2.3, and JND value is greater than 2.3 in next grayscale of the grayscale, then the grayscale is the first grayscale g1, and the 5th setting range is by most
Low ash rank is to the second grayscale g2.9th grayscale stage was located between minimum gray scale and the first grayscale g1, when the ash of object pixel 210
When rank is within the 9th grayscale stage, difference between the intrinsic brilliance of object pixel 210 and the object brightness of object pixel 210 compared with
Small, Product-factor is 0, i.e., practical penalty coefficient M is 0, is effectively avoided when the grayscale of object pixel 210 is in the 9th grayscale stage
Occurs the case where overcompensation when interior.
Fig. 7 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention, with reference to Fig. 2,
Fig. 4 and Fig. 7, optionally, wherein the first grayscale g1 is minimum gray scale.
With continued reference to Fig. 2-Fig. 4, optionally, wherein it was equipped with for the tenth grayscale stage between the 4th grayscale g4 and highest grayscale,
4th grayscale g4 is between third grayscale g3 and highest grayscale；
When the grayscale of object pixel 210 is within the tenth grayscale stage, Product-factor is 0.
Specifically, traversal the 6th setting range in grayscale, test target pixel 210 intrinsic brilliance (do not compensate at this time,
Product-factor is 0) the JND value between the object brightness of object pixel 210, when in a grayscale, JND value is less than or equal to
2.3, and JND value is greater than 2.3 in next grayscale of the grayscale, then the grayscale is the 4th grayscale g4, and the 6th setting range is by most
High gray is to third grayscale g3.Tenth grayscale stage between the 4th grayscale g4 and highest grayscale, when the ash of object pixel 210
When rank is within the tenth grayscale stage, the brightness of object pixel 210 is higher, even if not carrying out to the intrinsic brilliance of object pixel 210
Compensation, the difference is insignificant between intrinsic brilliance and object brightness, at this point, when the grayscale of object pixel 210 is the tenth
When in the grayscale stage, Product-factor is 0, will not influence the display effect of organic light emitting display panel, and is effectively reduced organic
The energy consumption of light emitting display panel.
Fig. 8 is the corresponding relationship of the grayscale of another Product-factor and object pixel provided by the invention, with reference to Fig. 2,
Fig. 4 and Fig. 8, optionally, wherein the 4th grayscale g4 is highest grayscale.
Fig. 9 is the flow diagram of step 101 in the luminance compensation method for the organic light emitting display panel that Fig. 2 is provided, ginseng
Fig. 2, Fig. 4 and Fig. 9 are examined, optionally, wherein step 101, bright according to reality of one or more object pixels when sampling grayscale
Degree and object brightness, obtain initial compensation coefficient, comprising:
Step 1011 obtains one or more object pixels in the intrinsic brilliance of different grayscale, according to intrinsic brilliance and ash
The corresponding relationship of rank is fitted to obtain gamma curve；
Step 1012 calculates target ash corresponding to object brightness of the object pixel when sampling grayscale according to gamma curve
Rank obtains initial compensation coefficient according to the difference of target gray scale and sampling grayscale.
Specifically, obtaining one or more object pixels 210 in the intrinsic brilliance of different grayscale, according to intrinsic brilliance and ash
The corresponding relationship of rank is fitted to obtain gamma curve, according to mesh of the available object pixel 210 of gamma curve when sampling grayscale
Target gray scale corresponding to brightness is marked, the difference between target gray scale and sampling grayscale is initial compensation coefficient.
Figure 10 is the flow diagram of the luminance compensation method of another organic light emitting display panel provided by the invention, ginseng
Fig. 3, Fig. 4 and Figure 10 are examined, optionally, the luminance compensation method of organic light emitting display panel further include:
Step 104, will each object pixel the storage of practical penalty coefficient in storage chip；
When step 105, organic light emitting display panel booting, IC chip imports the data in storage chip integrated
In circuit chip；
When step 106, organic light emitting display panel display, each object pixel is superimposed respective reality on image data
Penalty coefficient.
Specifically, after passing through the practical penalty coefficient that step 101- step 103 calculates each object pixel 210, it will be every
In the practical penalty coefficient storage to storage chip (not shown) of a object pixel 210, organic light emitting display panel booting
When, IC chip (not shown) imports the data in storage chip in IC chip, organic light emitting display
When Display panel, organic light emitting display panel show not true image data, but be superimposed practical penalty coefficient it
Image data afterwards.
Figure 11 is a kind of structural schematic diagram of the luminance compensating mechanism of organic light emitting display panel provided by the invention, reference
Fig. 3, Fig. 4 and Figure 11, the present embodiment provides a kind of luminance compensating mechanisms of organic light emitting display panel, including initial compensation coefficient
Setting module 310, Product-factor setting module 320 and practical compensating module 330；
Initial compensation coefficient setting module 310, for the reality according to one or more object pixels 210 when sampling grayscale
Border brightness and object brightness generate initial compensation COEFFICIENT K；
Product-factor setting module 320, for generating Product-factor G, the grayscale g of Product-factor G and object pixel 210 it
Between meet piecewise function relationship；Wherein, when the grayscale of object pixel 210 is minimum gray scale and highest grayscale, Product-factor G is equal
It is 0；When the grayscale of object pixel 210 is in the sampling grayscale, Product-factor G is 1；
Between minimum gray scale and highest grayscale, the first grayscale g1, the second grayscale g2, third grayscale g3 and the 4th grayscale
G44 is sequentially increased；When the grayscale of object pixel 210 is in the first grayscale g1 or the 4th grayscale g4, Product-factor G is 0, works as mesh
The grayscale of pixel 210 is marked in the second grayscale g2 or third grayscale g3, Product-factor G is 1；When the grayscale of object pixel 210 exists
When in the first grayscale stage, Product-factor G and grayscale g are in the first linear relationship, the first grayscale stage be located at the first grayscale g1 with
Between second grayscale g2；When the grayscale of object pixel 210 is within the second grayscale stage, Product-factor G and grayscale g are in the second line
Sexual intercourse, the second grayscale stage is between third grayscale g3 and the 4th grayscale g4；Sampling grayscale be located at the first grayscale stage with
Between second grayscale stage；
Practical compensating module 330 generates practical mend for being rounded according to initial compensation COEFFICIENT K and the product of Product-factor G
Coefficient M is repaid, and compensates the brightness of object pixel 210 according to practical penalty coefficient M.
Specifically, initial compensation coefficient setting module 310 is used for according to one or more object pixels 210 in sampling grayscale
When intrinsic brilliance and object brightness generate initial compensation COEFFICIENT K.Product-factor setting module 320, for generating Product-factor
G, practical compensating module 330 generate practical penalty coefficient for being rounded according to initial compensation COEFFICIENT K and the product of Product-factor G
M, and according to the brightness of practical penalty coefficient M compensation object pixel 210, reach so that the compensated brightness of object pixel 21 is close
Its object brightness, to improve the display effect of organic light emitting display panel；Wherein, the ash of Product-factor G and object pixel 210
Meet piecewise function relationship between rank g, the penalty coefficient to form different grayscale is fitted without using longer time, is effectively subtracted
Few production time, improve productivity effect.
When the grayscale of object pixel 210 is when sampling grayscale, since initial compensation COEFFICIENT K is according to one or more target pictures
Intrinsic brilliance and object brightness of the element 210 when sampling grayscale generate, and Product-factor is 1 at this time, and practical penalty coefficient M is at this time
Initial compensation COEFFICIENT K.When the grayscale of object pixel 210 is minimum gray scale, the grayscale of object pixel 210 is 0, i.e. object pixel
210 when darkly picture is shown, Product-factor 0, practical penalty coefficient M is 0 at this time, the phenomenon that effectively avoiding black picture light leakage.
When the grayscale of object pixel 210 is highest grayscale, the brightness of object pixel 210 is higher, intrinsic brilliance and object brightness it
Between the difference is insignificant, practical penalty coefficient M is 0 display effect that will not influence organic light emitting display panel at this time, and
Practical penalty coefficient M is 0 energy consumption that organic light emitting display panel is effectively reduced at this time.
Between minimum gray scale and highest grayscale, the first grayscale g1, the second grayscale g2, third grayscale g3 and the 4th grayscale g4
It is sequentially increased.When the grayscale of object pixel 210 is in the first grayscale g1, the brightness of object pixel 210 is lower, object pixel 210
Intrinsic brilliance and object brightness between difference it is smaller, at this time Product-factor be 0, i.e., practical penalty coefficient M be 0, Bu Huiying
Ring the display effect of organic light emitting display panel.When the grayscale of object pixel 210 is in the 4th grayscale g2, object pixel 210
The difference is insignificant between intrinsic brilliance and object brightness, practical penalty coefficient M will not influence organic light emission for 0 and show at this time
Show the display effect of panel.
When the grayscale of object pixel 210 is in the second grayscale g2 or third grayscale g3, Product-factor 1 is practical at this time to mend
Repaying coefficient M is initial compensation COEFFICIENT K.Sampling grayscale can be between the first grayscale stage and the second grayscale stage, i.e., sampling is grey
Rank or for the second grayscale g2 or be third grayscale g3 or between the second grayscale g2 and third grayscale g3.First grayscale stage
Between the first grayscale g1 and the second grayscale g2, when the grayscale of object pixel 210 is within the first grayscale stage, object pixel
Difference between 210 intrinsic brilliance and object brightness is gradually increased irregular patch when organic light emitting display panel being caused to show
The case where gradually deepening, if being all made of identical practical penalty coefficient M will cause the appearance in part gray-scale of object pixel 210
The phenomenon that overcompensation, therefore when the grayscale of object pixel 210 is within the first grayscale stage, Product-factor G and grayscale g are in first
Linear relationship, i.e. grayscale g are gradually increased, and corresponding Product-factor G is also increased with it, and practical penalty coefficient M is also increased with it, and are had
Effect solves between the intrinsic brilliance and object brightness of the object pixel 210 caused by increasing in the first grayscale stage with grayscale g
Difference be gradually increased caused by organic light emitting display panel the phenomenon that irregular patch is gradually deepened when showing, effectively improved
The display effect of machine light emitting display panel.
Second grayscale stage between third grayscale g3 and the 4th grayscale g4, when the grayscale of object pixel 210 is second
When in the grayscale stage, the brightness of object pixel 210 is more and more brighter, between the intrinsic brilliance and object brightness of object pixel 210
Difference is gradually reduced, at this point, Product-factor G and grayscale g is in the second linear relationship, i.e. grayscale g is gradually increased, corresponding product because
Sub- G also reduces therewith, and practical penalty coefficient M is gradually reduced the display effect that will not influence organic light emitting display panel at this time, has
Effect reduces the energy consumption of organic light emitting display panel.
Practical penalty coefficient M is initial compensation COEFFICIENT K and the product rounding of Product-factor G in the present invention, wherein initial to mend
Repaying COEFFICIENT K can generate according to intrinsic brilliance of one or more object pixels 210 when sampling grayscale and object brightness, product because
Meet piecewise function relationship between sub- G and the grayscale g of object pixel 210, to form difference without using longer time to be fitted
The penalty coefficient of grayscale effectively reduces the production time, improves productivity effect.
With continued reference to Fig. 3, Fig. 4 and Figure 11, optionally, wherein initial compensation coefficient setting module 310 includes gamma curve
Setting module 311 and initial compensation coefficients calculation block 312；Wherein,
Gamma curve setting module 311, it is bright in the reality of different grayscale for obtaining one or more object pixels 210
Degree, and be fitted according to the corresponding relationship of intrinsic brilliance and grayscale and generate gamma curve；
Initial compensation coefficients calculation block 312, for calculating object pixel 210 when sampling grayscale according to gamma curve
Target gray scale corresponding to object brightness, and initial compensation COEFFICIENT K is generated according to the difference of target gray scale and sampling grayscale.
Specifically, obtaining one or more object pixels 210 in the reality of different grayscale by gamma curve setting module 311
Border brightness, and be fitted to obtain gamma curve according to the corresponding relationship of intrinsic brilliance and grayscale, mould is calculated by initial compensation coefficient
The target gray scale according to corresponding to object brightness of the available object pixel 210 of gamma curve when sampling grayscale of block 312, meter
The difference calculating target gray scale and sampling between grayscale is initial compensation coefficient.
Through the foregoing embodiment it is found that the luminance compensation method and its dress of organic light emitting display panel provided by the invention
Set, at least realize it is following the utility model has the advantages that
In the application, practical penalty coefficient is used to compensate the brightness of object pixel in organic light emitting display panel, practical to mend
The product rounding that coefficient is initial compensation coefficient and Product-factor is repaid, the corresponding practical penalty coefficient of different object pixels is not to the utmost
It is identical, the brightness of object pixel is targetedly compensated by practical penalty coefficient, so that the compensated brightness of object pixel connects
Closely or reach its object brightness, to improve the display effect of organic light emitting display panel.Wherein, initial compensation coefficient is according to one
Intrinsic brilliance and object brightness of a or multiple object pixels when sampling grayscale generate.The grayscale of Product-factor and object pixel
Between meet piecewise function relationship, when the grayscale of object pixel is when sampling grayscale, due to initial compensation coefficient according to one or
Intrinsic brilliance and object brightness of multiple object pixels when sampling grayscale generate, and Product-factor is 1 at this time, at this time practical compensation
Coefficient is initial compensation coefficient.When the grayscale of object pixel is minimum gray scale, the grayscale of object pixel is 0, i.e. object pixel
The phenomenon that when darkly picture is shown, Product-factor 0, practical penalty coefficient is 0 at this time, effectively avoids black picture light leakage.Work as mesh
When the grayscale for marking pixel is highest grayscale, the brightness of object pixel is higher, and the difference between intrinsic brilliance and object brightness can
It ignores, practical penalty coefficient is 0 display effect that will not influence organic light emitting display panel at this time, and practical compensation at this time
Coefficient is 0 energy consumption that organic light emitting display panel is effectively reduced.Between minimum gray scale and highest grayscale, the first grayscale, second
Grayscale, third grayscale and the 4th grayscale are sequentially increased.When the grayscale of object pixel is in the first grayscale, the brightness of object pixel compared with
Low, the difference between the intrinsic brilliance and object brightness of object pixel is smaller, and Product-factor is 0 at this time, i.e., practical penalty coefficient
It is 0, will not influence the display effect of organic light emitting display panel.When the grayscale of object pixel is in four grayscale, object pixel
Intrinsic brilliance and object brightness between the difference is insignificant, practical penalty coefficient is that 0 will not influence organic light emission at this time
The display effect of display panel.When the grayscale of object pixel is in the second grayscale or third grayscale, Product-factor 1 is real at this time
Border penalty coefficient is initial compensation coefficient.Sampling grayscale can be between the first grayscale stage and the second grayscale stage.First ash
The rank stage between the first grayscale and the second grayscale, when the grayscale of object pixel is within the first grayscale stage, object pixel
Intrinsic brilliance and object brightness between difference be gradually increased when organic light emitting display panel being caused to show irregular patch by
The case where gradually deepening, if being all made of identical practical penalty coefficient will cause object pixel in the part ash lower than sampling grayscale
Occurs the phenomenon that overcompensation when rank, therefore when the grayscale of object pixel is within the first grayscale stage, Product-factor and grayscale are in
First linear relationship, i.e. grayscale are gradually increased, and corresponding Product-factor also increases with it, and practical penalty coefficient also increases with it,
Between the intrinsic brilliance and object brightness for effectively solving the object pixel caused by increasing in the first grayscale stage with grayscale
The problem of irregular patch is gradually deepened when the display of organic light emitting display panel caused by difference is gradually increased, effectively improves organic
The display effect of light emitting display panel.Second grayscale stage between third grayscale and the 4th grayscale, when the ash of object pixel
When rank is within the second grayscale stage, the brightness of object pixel is more and more brighter, between the intrinsic brilliance and object brightness of object pixel
Difference be gradually reduced, at this point, Product-factor and grayscale are in the second linear relationship, i.e. grayscale is gradually increased, corresponding product because
Son also reduces therewith, and practical penalty coefficient is gradually reduced the display effect that will not influence organic light emitting display panel at this time, effectively
Reduce the energy consumption of organic light emitting display panel.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (13)
1. a kind of luminance compensation method of organic light emitting display panel characterized by comprising
According to intrinsic brilliance and object brightness of one or more object pixels when sampling grayscale, initial compensation system is obtained
Number；
Product-factor is set, piecewise function relationship is met between the Product-factor and the grayscale of the object pixel；Wherein, when
When the grayscale of the object pixel is minimum gray scale and highest grayscale, the Product-factor is 0；When the ash of the object pixel
For rank in the sampling grayscale, the Product-factor is 1；
Between the minimum gray scale and the highest grayscale, the first grayscale, the second grayscale, third grayscale and the 4th grayscale are successively
Increase；When the grayscale of the object pixel is in first grayscale or four grayscale, the Product-factor is 0, when
For the grayscale of the object pixel in second grayscale or third grayscale, the Product-factor is 1；When the object pixel
When grayscale is within the first grayscale stage, the Product-factor and the grayscale are in the first linear relationship, the first grayscale stage
Between the first grayscale and the second grayscale；When the grayscale of the object pixel is within the second grayscale stage, the product because
The sub and described grayscale is in the second linear relationship, and the second grayscale stage is between third grayscale and the 4th grayscale；It is described to adopt
Sample grayscale is between the first grayscale stage and the second grayscale stage；
The product of the initial compensation coefficient and the Product-factor is rounded to obtain practical penalty coefficient, the practical penalty coefficient
For compensating the brightness of the object pixel.
2. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
The third grayscale stage is equipped between the first grayscale stage and the second grayscale stage, when the ash of the object pixel
When rank is within the third grayscale stage, the Product-factor is 1, the third grayscale stage be located at second grayscale and
Between the third grayscale, and the sampling grayscale was located in the third grayscale stage.
3. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
The 4th grayscale stage and the 5th grayscale stage are equipped between the first grayscale stage and the second grayscale stage；
When the grayscale of the object pixel is within the 4th grayscale stage, the Product-factor and the grayscale are in third line
Sexual intercourse, the 4th grayscale stage, second grayscale was located at described the between second grayscale and the 5th grayscale
Between one grayscale and the 5th grayscale, when the grayscale of the object pixel is in five grayscale, the Product-factor is
G1, wherein 1 G1≤2 <；
When the grayscale of the object pixel is within the 5th grayscale stage, the Product-factor and the grayscale are in the 4th line
Sexual intercourse, the 5th grayscale stage, the 5th grayscale was located at described the between the 5th grayscale and third grayscale
Between two grayscale and the third grayscale；
Second grayscale is the sampling grayscale or the third grayscale is the sampling grayscale.
4. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
The 6th grayscale stage, the 7th grayscale stage and the 8th are equipped between the first grayscale stage and the second grayscale stage
The grayscale stage；
When the grayscale of the object pixel is within the 6th grayscale stage, the Product-factor and the grayscale are in the 5th line
Sexual intercourse, the 6th grayscale stage, second grayscale was located at described the between second grayscale and the 6th grayscale
Between one grayscale and the 6th grayscale, when the grayscale of the object pixel is in six grayscale, the Product-factor is
G2, wherein 1 G2≤2 <；
When the grayscale of the object pixel is within the 7th grayscale stage, the Product-factor is G2, the 7th ash
The rank stage is located at the 6th grayscale to the 7th grayscale；
When the grayscale of the object pixel is within the 8th grayscale stage, the Product-factor and the grayscale are in the 6th line
Sexual intercourse, the 8th grayscale stage is between the 7th grayscale and third grayscale；
Second grayscale is the sampling grayscale or the third grayscale is the sampling grayscale.
5. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
It was equipped with for the 9th grayscale stage between the minimum gray scale and first grayscale, first grayscale is located at the most low ash
Between rank and second grayscale；
When the grayscale of the object pixel is within the 9th grayscale stage, the Product-factor is 0.
6. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
It was equipped with for the tenth grayscale stage between 4th grayscale and the highest grayscale, the 4th grayscale is located at the third ash
Between rank and the highest grayscale；
When the grayscale of the object pixel is within the tenth grayscale stage, the Product-factor is 0.
7. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
First grayscale is the minimum gray scale.
8. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
4th grayscale is the highest grayscale.
9. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that
The intrinsic brilliance and object brightness according to one or more object pixels when sampling grayscale, is initially mended
Repay coefficient, comprising:
One or more object pixels are obtained in the intrinsic brilliance of different grayscale, are closed according to intrinsic brilliance and the corresponding of grayscale
System's fitting obtains gamma curve；
According to gamma curve calculate the object pixel it is described sampling grayscale when the object brightness corresponding to target ash
Rank obtains the initial compensation coefficient according to the difference of the target gray scale and the sampling grayscale.
10. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that further include:
It will be in the practical penalty coefficient storage to storage chip of each object pixel；
When organic light emitting display panel is switched on, the data in the storage chip are imported IC chip by IC chip
It is interior；
When the organic light emitting display panel is shown, each object pixel is superimposed the respective reality on image data
Penalty coefficient.
11. the luminance compensation method of organic light emitting display panel according to claim 1, which is characterized in that further include:
The grayscale in the first setting range is traversed, the object pixel is tested and passes through brightness after initial compensation compensating coefficient and institute
The JND value between the object brightness of object pixel is stated, when JND value is less than or equal to 2.3 in a grayscale, and under the grayscale
JND value is greater than 2.3 when one grayscale, then the grayscale is second grayscale, wherein first setting range is by the target ash
Rank is to the minimum gray scale；
The grayscale in the second setting range is traversed, the JND value between the intrinsic brilliance and object brightness of the object pixel is tested,
When in a grayscale, greater than 2.3, and in next grayscale of the grayscale, JND value is less than or equal to 2.3 to JND value, then the grayscale is
The third grayscale, wherein second setting range is by the target gray scale to the highest grayscale.
12. a kind of luminance compensating mechanism of organic light emitting display panel, which is characterized in that set mould including initial compensation coefficient
Block, Product-factor setting module and practical compensating module；
The initial compensation coefficient setting module, for the reality according to one or more object pixels when sampling grayscale
Brightness and object brightness generate initial compensation coefficient；
The Product-factor setting module, for generating Product-factor, the grayscale of the Product-factor and the object pixel it
Between meet piecewise function relationship；Wherein, when the grayscale of the object pixel be minimum gray scale and highest grayscale when, the product because
Son is 0；When the grayscale of the object pixel is in the sampling grayscale, the Product-factor is 1；
Between the minimum gray scale and the highest grayscale, the first grayscale, the second grayscale, third grayscale and the 4th grayscale are successively
Increase；When the grayscale of the object pixel is in first grayscale or four grayscale, the Product-factor is 0, when
For the grayscale of the object pixel in second grayscale or third grayscale, the Product-factor is 1；When the object pixel
When grayscale is within the first grayscale stage, the Product-factor and the grayscale are in the first linear relationship, the first grayscale stage
Between the first grayscale and the second grayscale；When the grayscale of the object pixel is within the second grayscale stage, the product because
The sub and described grayscale is in the second linear relationship, and the second grayscale stage is between third grayscale and the 4th grayscale；It is described to adopt
Sample grayscale is between the first grayscale stage and the second grayscale stage；
The practical compensating module generates reality for being rounded according to the product of the initial compensation coefficient and the Product-factor
Penalty coefficient, and compensate according to the practical penalty coefficient brightness of the object pixel.
13. the luminance compensating mechanism of organic light emitting display panel according to claim 12, which is characterized in that described initial
Penalty coefficient setting module includes gamma curve setting module and initial compensation coefficients calculation block；Wherein,
The gamma curve setting module, for obtaining one or more object pixels in the intrinsic brilliance of different grayscale,
And it is fitted according to the corresponding relationship of intrinsic brilliance and grayscale and generates gamma curve；
The initial compensation coefficients calculation block, for calculating the object pixel in the sampling grayscale according to gamma curve
The object brightness corresponding to target gray scale, and according to the target gray scale and it is described sampling grayscale difference generate described in
Initial compensation coefficient.
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