CN106782430A - A kind of display panel brightness adjusting method and system - Google Patents
A kind of display panel brightness adjusting method and system Download PDFInfo
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- CN106782430A CN106782430A CN201710031889.3A CN201710031889A CN106782430A CN 106782430 A CN106782430 A CN 106782430A CN 201710031889 A CN201710031889 A CN 201710031889A CN 106782430 A CN106782430 A CN 106782430A
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- 239000003086 colorant Substances 0.000 claims 1
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The embodiment of the invention discloses a kind of display panel brightness adjusting method and system.Methods described includes：Obtain total input current of all sub-pixels in display panel predeterminable area under default input GTG；The region to be compensated of display panel is determined according to total input current and target total current；Obtain the display brightness of each sub-pixel in the region to be compensated；The display offset of each sub-pixel in the region to be compensated is determined according to the display brightness and target display brightness；The display offset is fed back into the display panel carries out brightness regulation；Wherein, the display panel includes multiple predeterminable areas, and the predeterminable area includes at least two sub-pixels.The embodiment of the present invention improves the non-uniform light between each sub-pixel of display panel.
Description
Technical field
The present embodiments relate to Display Technique, more particularly to a kind of display panel brightness adjusting method and system.
Background technology
With the development of Display Technique, showing the display effect of product is constantly improved, so that display product
Using more and more extensive.
However, existing display panel, due to manufacturing process and luminescent material is aging etc. that reason easily causes sub-pixel
Between non-uniform light, i.e. same color sub-pixel when identical picture signal is input into, display brightness is different, influences image
Display quality.
The content of the invention
The present invention provides a kind of display panel brightness adjusting method and system, between each sub-pixel for improving display panel
Non-uniform light.
In a first aspect, the embodiment of the invention provides a kind of display panel brightness adjusting method, methods described includes：
Obtain total input current of all sub-pixels in display panel predeterminable area under default input GTG；
The region to be compensated of display panel is determined according to total input current and target total current；
Obtain the display brightness of each sub-pixel in the region to be compensated；
The display of each sub-pixel in the region to be compensated is determined according to the display brightness and target display brightness
Offset；
The display offset is fed back into the display panel carries out brightness regulation；
Wherein, the display panel includes multiple predeterminable areas, and the predeterminable area includes at least two sub-pixels.
Second aspect, the embodiment of the present invention additionally provides a kind of display panel brightness control system, and the system includes：
Brightness regulating apparatus and display panel；
The display panel includes stored adjustment module；The display panel includes multiple predeterminable areas, the preset areas
Domain includes at least two sub-pixels；
The brightness regulating apparatus include that total input current acquisition module, area determination module to be compensated, display brightness are obtained
Modulus block, display offset determining module and data feedback module；Wherein,
Total input current acquisition module is used to obtaining under default input GTG in the shown predeterminable area of display panel
Total input current of all sub-pixels；
The area determination module to be compensated is used to determine display surface according to total input current and target total current
The region to be compensated of plate；
The display brightness acquisition module is used to obtain the display brightness of each sub-pixel in the region to be compensated；
The display offset determining module is used to wait to mend according to the display brightness and target display brightness determine
Repay the display offset of each sub-pixel in region；
The data feedback module is used to for the display offset to feed back to the stored adjustment module；
The stored adjustment module is used to obtain and store the display offset, and according to the display offset to institute
Each described sub-pixel for stating display panel carries out brightness regulation.
The embodiment of the present invention is by obtaining under default input GTG the total defeated of all sub-pixels in display panel predeterminable area
Enter electric current, determine the region to be compensated of display panel according to total input current and target total current, obtain described in wait to mend
The display brightness of each sub-pixel in region is repaid, the area to be compensated is determined according to the display brightness and target display brightness
The display offset of each sub-pixel in domain, the display offset is fed back into the display panel carries out brightness regulation,
Improve the non-uniform light between each sub-pixel of display panel.
Brief description of the drawings
Fig. 1 is a kind of flow chart of display panel brightness adjusting method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of display panel brightness control system provided in an embodiment of the present invention；
Fig. 3 is the structural representation of the brightness control system of another display panel provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part rather than entire infrastructure related to the present invention is illustrate only in description, accompanying drawing.
Fig. 1 is a kind of flow chart of display panel brightness adjusting method provided in an embodiment of the present invention, described with reference to Fig. 1
Method specifically may include steps of：
Step 110, the total input current for obtaining all sub-pixels in display panel predeterminable area under default input GTG.
Wherein, the display panel includes multiple predeterminable areas, and the predeterminable area includes at least two sub-pixels.
Total input current is the summation of the electric current flowed through in each sub-pixel in the predeterminable area.Specifically, each described
The sub-pixel quantity that predeterminable area includes can be the same or different, and be not specifically limited.
Optionally, total input current can be obtained by current collecting device.Wherein, the current collecting device
Current acquisition frequency according to the picture refreshing frequency setting of display panel, and can be not specifically limited.
Step 120, the region to be compensated that display panel is determined according to total input current and target total current.
Specifically, the difference of total input current and the target total current can be calculated, and it is true according to the difference
Fixed region to be compensated.In addition, each predeterminable area all has the corresponding target total current, the mesh of each predeterminable area
Mark total current can be the same or different, and the size of the default total current changes with the number of predeterminable area sub-pixel,
And be not specifically limited.
Optionally, if total input current of the predeterminable area is more than in advance with the absolute value of the difference of the target total current
If current threshold, then the predeterminable area is region to be compensated.
Wherein, the size of the predetermined current threshold can be set according to brightness regulation precision of display panel etc.,
And be not specifically limited.
Optionally, multiple predeterminable areas include the sub-pixel of equal number, and same in multiple predeterminable areas
The sub-pixel quantity of one color is identical.So set so that the target of each predeterminable area when identical GTG is input into
Total current is identical, reduces operand, can faster judge region to be compensated.
Optionally, the target total current is the average of total input current of all predeterminable areas.
Specifically, if the quantity of the sub-pixel quantity and same color sub-pixels in each predeterminable area is identical, can be with
Using the average of total input current of all predeterminable areas as the target total current, so only needed when target total current is calculated
Calculate the average of total input current of all predeterminable areas so that the calculating speed of target total current faster, such that it is able to faster
Filter out region to be compensated, improve brightness regulation speed.
Optionally, the target total current is true with the corresponding relation of input current according to the input GTG of each sub-pixel
It is fixed.
Specifically, the input GTG of display panel has specific corresponding relation with input current, can be according to input ash
The size of rank determines the size of the target input current of each sub-pixel, so that it is determined that the size of target total current.
Step 130, the display brightness for obtaining each sub-pixel in the region to be compensated.
Optionally, by optical pickup obtain the display panel it is described it is default input GTG under it is described to be compensated
The display brightness of each sub-pixel in region.
Specifically, the present embodiment is by measuring total input current of each predeterminable area, so that it is determined that region to be compensated, only needs
The display brightness of each sub-pixel in region to be compensated is obtained, the display brightness without obtaining all sub-pixels of whole display panel,
Data processing amount is reduced, display panel brightness regulation speed is improve.
Step 140, each sub- picture in the region to be compensated is determined according to the display brightness and target display brightness
The display offset of element.
Optionally, the target brightness value be according to gamma formula be calculated it is described default input GTG it is corresponding bright
Angle value；Or, the target brightness value is average aobvious for all predeterminable areas of the display panel in addition to the region to be compensated
Show brightness.
Specifically, the averagely display by setting all predeterminable areas of the display panel in addition to the region to be compensated is bright
Degree as the target brightness value so that the target brightness value closer to display panel actual displayed effect, after making compensation
Region described to be compensated display brightness it is closer with the display brightness of other predeterminable areas, can preferably eliminate display surface
Plate non-uniform light.In addition, the corresponding brightness value of described default input GTG being calculated according to gamma formula so that changing
Gamma-curve correction is realized while the non-uniform light of kind display panel.
Optionally, can be according to the display brightness of each sub-pixel and the difference of the target display brightness determine
Sub-pixel to be compensated in region to be compensated；The display offset of the sub-pixel to be compensated is calculated according to gamma formula.
Specifically, display brightness can be compared with the difference of the target display brightness with predetermined luminance threshold value,
If the difference is more than the predetermined luminance threshold value, corresponding sub-pixel is sub-pixel to be compensated.For sub-pixel to be compensated,
Display brightness input GTG corresponding with target display brightness difference can be calculated according to gamma formula, calculate two and be input into GTG
GTG difference, adds and obtains new input GTG, by the new input by the GTG difference with the default input GTG
GTG is applied to the sub-pixel to be compensated, obtains its currently displaying brightness, and by currently displaying brightness and target display brightness
Difference be compared again with the predetermined luminance threshold value, until the difference be less than the predetermined luminance threshold value when, apply
Input GTG to sub-pixel to be compensated is the corresponding target input GTG of the target display brightness.Can be according to the mesh
Mark input GTG calculates the display offset.
Optionally, the display offset is gray scale compensation value or voltage compensation value.
Specifically, the target can be input into GTG with the difference of the default input GTG as gray scale compensation value,
Can also be by the target corresponding target input voltage of input GTG default input electricity corresponding with the default input GTG
The difference of pressure is used as voltage compensation value.
Step 150, the display offset is fed back to the display panel and carries out brightness regulation.
Specifically, the voltage compensation value can be fed back into display panel, display panel, can be with root when image shows
Corresponding voltage compensation value is searched according to the luma data of sub-pixel to be compensated in image or brightness data, and is mended according to the voltage
Repay value carries out voltage compensation to sub-pixel to be compensated, to improve the brightness irregularities of each sub-pixel, improves image displaying quality.
The gray scale compensation value can be fed back to display panel, display panel, can be according to be compensated in image when image shows
The luma data or brightness data of sub-pixel search corresponding gray scale compensation value, and according to the gray scale compensation value to son to be compensated
Pixel is compensated, so as to improve the brightness irregularities of each sub-pixel, improves image displaying quality.
The embodiment of the present invention is by obtaining under default input GTG the total defeated of all sub-pixels in display panel predeterminable area
Enter electric current, determine the region to be compensated of display panel according to total input current and target total current, obtain described in wait to mend
The display brightness of each sub-pixel in region is repaid, the area to be compensated is determined according to the display brightness and target display brightness
The display offset of each sub-pixel in domain, the display offset is fed back into the display panel carries out brightness regulation,
Improve the non-uniform light between each sub-pixel of display panel.
Fig. 2 is a kind of structural representation of display panel brightness control system provided in an embodiment of the present invention, with reference to Fig. 2,
The system can include：
Brightness regulating apparatus 210 and display panel 220；
Display panel 220 includes stored adjustment module 221；Display panel includes multiple predeterminable areas 222, predeterminable area
222 include at least two sub-pixels；
Brightness regulating apparatus 210 include total input current acquisition module 211, area determination module to be compensated 212, show bright
Degree acquisition module 213, display offset determining module 214 and data feedback module 215；Wherein,
Total input current acquisition module 211 is used to obtaining under default input GTG in the predeterminable area 222 of display panel 220
Total input current of all sub-pixels；
Area determination module to be compensated 212 is used to determine display panel according to total input current and target total current
220 region to be compensated；
Display brightness acquisition module 213 is used to obtain the display brightness of each sub-pixel in the region to be compensated；
Display offset determining module 214 is described to be compensated for being determined according to the display brightness and target display brightness
The display offset of each sub-pixel in region；
Data feedback module 215 is used to for the display offset to feed back to stored adjustment module 221；
Stored adjustment module 221 is used to obtain and store the display offset, and according to the display offset to aobvious
Showing each described sub-pixel of panel 220 carries out brightness regulation.
Optionally, the display offset is gray scale compensation value or voltage compensation value.
Optionally, multiple predeterminable areas include the sub-pixel of equal number, and multiple predeterminable areas are same
The sub-pixel quantity of color is identical.
Optionally, the target total current is the average of total input current of all predeterminable areas.
Optionally, the target total current is true with the corresponding relation of input current according to the input GTG of each sub-pixel
It is fixed.
Optionally, area determination module to be compensated 212 specifically for：
If total input current of the predeterminable area is more than predetermined current with the absolute value of the difference of the target total current
Threshold value, then the predeterminable area is region to be compensated.
Optionally, display offset determining module 214 includes：
Sub-pixel determining unit to be compensated, for the display brightness according to each sub-pixel and the target display brightness
The difference sub-pixel to be compensated that determines in the region to be compensated；
Compensation value calculation unit, the display offset for calculating the sub-pixel to be compensated according to gamma formula.
Optionally, the target brightness value be according to gamma formula be calculated it is described default input GTG it is corresponding bright
Angle value；Or,
The target brightness value is that the averagely display of all predeterminable areas outside region to be compensated described in display panel is bright
Degree.
Fig. 3 is the structural representation of the brightness control system of another display panel provided in an embodiment of the present invention, optional
, with reference to Fig. 3, the system also includes：
Current collecting device 230, the total input current for gathering all sub-pixels in predeterminable area 222.
Optionally, with reference to Fig. 3, the system also includes：
Optical pickup 240, for obtaining display image of the display panel 220 under the preset gray scale；
Accordingly, display brightness acquisition module 213 specifically for：
The display image is obtained from optical pickup 240, and the region to be compensated is obtained from the display image
In each sub-pixel display brightness.
The brightness control system of the display panel that the present embodiment is provided, the display surface provided with any embodiment of the present invention
The brightness adjusting method of plate belongs to same inventive concept, possesses corresponding beneficial effect.Not detailed description in the present embodiment
Ins and outs, reference can be made to the brightness adjusting method of the display panel that any embodiment of the present invention is provided.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (20)
1. a kind of display panel brightness adjusting method, it is characterised in that including：
Obtain total input current of all sub-pixels in display panel predeterminable area under default input GTG；
The region to be compensated of display panel is determined according to total input current and target total current；
Obtain the display brightness of each sub-pixel in the region to be compensated；
The display compensation of each sub-pixel in the region to be compensated is determined according to the display brightness and target display brightness
Value；
The display offset is fed back into the display panel carries out brightness regulation；
Wherein, the display panel includes multiple predeterminable areas, and the predeterminable area includes at least two sub-pixels.
2. method according to claim 1, it is characterised in that the display offset is gray scale compensation value or voltage compensation
Value.
3. method according to claim 1, it is characterised in that multiple predeterminable areas include the sub- picture of equal number
The sub-pixel quantity of same color is identical in element, and multiple predeterminable areas.
4. method according to claim 3, it is characterised in that：
The target total current is the average of total input current of all predeterminable areas.
5. method according to claim 1, it is characterised in that：
The target total current determines according to the input GTG of each sub-pixel with the corresponding relation of input current.
6. method according to claim 1, it is characterised in that determined according to total input current and target total current
The region to be compensated of display panel, including：
If total input current of the predeterminable area is more than predetermined current threshold with the absolute value of the difference of the target total current,
Then the predeterminable area is region to be compensated.
7. method according to claim 1, it is characterised in that institute is determined according to the display brightness and target display brightness
The display offset for stating each sub-pixel in region to be compensated includes：
Display brightness according to each sub-pixel determines in the region to be compensated with the difference of the target display brightness
Sub-pixel to be compensated；
The display offset of the sub-pixel to be compensated is calculated according to gamma formula.
8. method according to claim 1, it is characterised in that：
The target brightness value is the corresponding brightness value of described default input GTG being calculated according to gamma formula；Or,
The target brightness value is the average display brightness of all predeterminable areas of the display panel in addition to the region to be compensated.
9. method according to claim 1, it is characterised in that the display panel is each under obtaining the default input GTG
Total input current of all sub-pixels in predeterminable area, including：
Total input current is obtained by current collecting device.
10. method according to claim 1, it is characterised in that obtain each sub-pixel in the region to be compensated
Display brightness includes：
The display panel each son in the region to be compensated under the default input GTG is obtained by optical pickup
The display brightness of pixel.
A kind of 11. display panel brightness control systems, it is characterised in that including：
Brightness regulating apparatus and display panel；
The display panel includes stored adjustment module；The display panel includes multiple predeterminable areas, the predeterminable area bag
Include at least two sub-pixels；
The brightness regulating apparatus include that total input current acquisition module, area determination module to be compensated, display brightness obtain mould
Block, display offset determining module and data feedback module；Wherein,
Total input current acquisition module is used to obtaining under default input GTG and owns in the predeterminable area of display panel
Total input current of sub-pixel；
The area determination module to be compensated is used to determine display panel according to total input current and target total current
Region to be compensated；
The display brightness acquisition module is used to obtain the display brightness of each sub-pixel in the region to be compensated；
The display offset determining module is used to determine the area to be compensated according to the display brightness and target display brightness
The display offset of each sub-pixel in domain；
The data feedback module is used to for the display offset to feed back to the stored adjustment module；
The stored adjustment module is used to obtain and store the display offset, and according to the display offset to described aobvious
Showing each described sub-pixel of panel carries out brightness regulation.
12. systems according to claim 11, it is characterised in that the display offset is that gray scale compensation value or voltage are mended
Repay value.
13. systems according to claim 11, it is characterised in that multiple predeterminable areas include the sub- picture of equal number
Element, and the sub-pixel quantity of multiple same colors of the predeterminable area is identical.
14. systems according to claim 13, it is characterised in that：
The target total current is the average of total input current of all predeterminable areas.
15. systems according to claim 11, it is characterised in that：
The target total current determines according to the input GTG of each sub-pixel with the corresponding relation of input current.
16. systems according to claim 11, it is characterised in that the area determination module to be compensated specifically for：
If total input current of the predeterminable area is more than predetermined current threshold with the absolute value of the difference of the target total current,
Then the predeterminable area is region to be compensated.
17. systems according to claim 11, it is characterised in that the display offset determining module includes：
Sub-pixel determining unit to be compensated, for the difference of the display brightness according to each sub-pixel and the target display brightness
Value determines the sub-pixel to be compensated in the region to be compensated；
Compensation value calculation unit, the display offset for calculating the sub-pixel to be compensated according to gamma formula.
18. systems according to claim 11, it is characterised in that：
The target brightness value is the corresponding brightness value of described default input GTG being calculated according to gamma formula；Or,
The target brightness value is the average display brightness of all predeterminable areas of the display panel in addition to the region to be compensated.
19. systems according to claim 11, it is characterised in that also include：
Current collecting device, the total input current for gathering all sub-pixels in the predeterminable area.
20. systems according to claim 11, it is characterised in that also include：
Optical pickup, for obtaining display image of the display panel under the preset gray scale；
Accordingly, the display brightness acquisition module specifically for：
The display image is obtained from the optical pickup, and obtains each in the region to be compensated from the display image
Sub-pixel is in display brightness.
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| CN108269516A (en) * | 2018-01-24 | 2018-07-10 | 京东方科技集团股份有限公司 | Drive load compensation unit, method, module and display device |
| CN108281107A (en) * | 2018-01-26 | 2018-07-13 | 京东方科技集团股份有限公司 | It is a kind of display color of image compensation method and splicing display device |
| CN109147657A (en) * | 2017-06-19 | 2019-01-04 | 瑞鼎科技股份有限公司 | Optical compensating member and its operation method applied to display panel |
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| CN110910826A (en) * | 2019-12-19 | 2020-03-24 | 京东方科技集团股份有限公司 | Brightness compensation method and device of display panel and display module |
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| CN115376440A (en) * | 2022-07-29 | 2022-11-22 | 西安诺瓦星云科技股份有限公司 | Display screen brightness uniformity correction method and device and display equipment |
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