CN108364606A - A kind of OLED modules gamma adjusting methods - Google Patents
A kind of OLED modules gamma adjusting methods Download PDFInfo
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- CN108364606A CN108364606A CN201810139941.1A CN201810139941A CN108364606A CN 108364606 A CN108364606 A CN 108364606A CN 201810139941 A CN201810139941 A CN 201810139941A CN 108364606 A CN108364606 A CN 108364606A
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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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Picture Signal Circuits (AREA)
Abstract
The present invention relates to a kind of OLED modules gamma adjusting methods, first will be in all the first RGB register initial values write-in gamma registers tied up a little；Then height is tied up a little or low tie up carries out a gamma adjustings, obtained height and tie up a little or the low RGB register values tied up a little；Height is tied up a little again or the low RGB tied up a little adjusts ratio and is multiplied with adjacent the first RGB register initial values tied up a little, obtains adjacent the 2nd RGB register initial values tied up a little；A progress gamma adjustings finally are tied up to adjacent, obtain the adjacent RGB register values tied up a little.The present invention can ensure seamlessly transitting for picture, be not in splashette, the effect after gamma is adjusted meets 2.2 standard of industry, and the grayscale fade effect after adjusting is not in bright line, and effect meets customer requirement.
Description
Technical field
The present invention relates to the scheduling and planning fields of OLED modules, mainly for the white balance gamma Tuning of OLED modules
A kind of debugging, and in particular to OLED modules gamma adjusting methods.
Background technology
OLED, which has, actively to shine, no viewing angle problem；Light-weight, thickness is small；High brightness, high-luminous-efficiency；Luminescent material
It is abundant, easily realize colored display；Fast response time, dynamic menu quality are high；Use temperature range is wide；Soft display can be achieved；
Simple process and low cost；The a series of advantages such as shock resistance is strong, therefore it is known as following ideal display by expert.
OLED is currently at high speed development initial stage, and application market mainly substitutes second generation display technology LCD, followed by increment city
, include the wearable device applied by Flexible Displays characteristic and quick response and the VR etc. that is applied.So major panel
Manufacturer all goes into operation and the development of OLED modules.Gamma corrections are had to pass through for the production of OLED modules to shipment at present, really
It protects display effect and meets 2.2 standard curve of industry.
But in current gamma adjustment processes, due to part module IC characteristics：1, there is splashette in adjustment process, this is existing
As CA310 can be caused to acquire the mistake of abnormal picture, lead to the confusion of algorithms library and can not gamma successes (such as Fig. 1)；2, it adjusts
Show that confusion occur in grayscale gradual change picture bright line, data afterwards.
Invention content
The present invention is mainly the technical problem solved present in the prior art；Providing a kind of ensuring the smoothed of picture
It crosses, is not in splashette, the effect after gamma is adjusted meets 2.2 standard of industry, and the grayscale fade effect after adjusting will not go out
Existing bright line, effect meet a kind of OLED modules white balance gamma adjusting methods and device of customer requirement.
The above-mentioned technical problem of the present invention is mainly to be addressed by following technical proposals：
A kind of OLED modules gamma adjusting methods, which is characterized in that include the following steps：
It S1) will be in all the first RGB register initial values write-in gamma registers tied up a little；
S2) height is tied up a little or low tie up carries out a gamma adjustings, height is obtained and ties up a little or the low RGB register values tied up a little；
S3) height is tied up a little or the low RGB tied up a little adjusts ratio and is multiplied with adjacent the first RGB register initial values tied up a little, is obtained
Obtain adjacent the 2nd RGB register initial values tied up a little；
S4 a progress gamma adjustings) are tied up to adjacent, obtain the adjacent RGB register values tied up a little；
S5 step S3, S4) is repeated, all RGB register values tied up a little are obtained；
Wherein, high to tie up a little or the low RGB tied up a little adjusts ratio and tied up a little or the low RGB register values and first tied up a little to be high
The ratio of RGB register initial values.
The first of gamma registers is written in a kind of above-mentioned OLED modules gamma adjusting methods, the step S1
RGB register initial values are issued by script group packet, and detailed process is that the first RGB register initial value group packets are issued foot
Sheet, script build_initgamaextdata functions parse data packet, and will tie up a conduct mark and package, and respectively will
Corresponding the first RGB registers initial value tied up a little is written to by the channels mipid0 in module.
In a kind of above-mentioned OLED modules gamma adjusting methods, height tie up a little or it is low tie up carry out gamma adjustings after,
The final RGB register values obtained tie up the correspondence height that is written before of covering a little or the low RGB register values tied up a little.
In a kind of above-mentioned OLED modules gamma adjusting methods, progress height is tied up a little or the low gamma adjustings tied up a little are to adopt
Adjusting is executed with SyncDoGammaAssistEx script functions and according to the preconfigured parameter of user.
In a kind of above-mentioned OLED modules gamma adjusting methods, the adjacent R tied up a littlenRegister value is to be based on following formula
It obtains：
Wherein, RnFor the adjacent R register value tied up a little, R 'nFor the adjacent first R register initial value tied up a little, Rn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low R register value tied up a little, R 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first R register initial value tied up a little.
In a kind of above-mentioned OLED modules gamma adjusting methods, the adjacent G tied up a littlenRegister value is to be based on following formula
It obtains：
Wherein, GnFor the adjacent G register values tied up a little, G 'nFor adjacent the first G register initial values tied up a little, Gn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low G register values tied up a little, G 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first RGB register initial values tied up a little.
In a kind of above-mentioned OLED modules gamma adjusting methods, the adjacent B tied up a littlenRegister value is to be based on following formula
It obtains：
Wherein, BnFor the adjacent B-register value tied up a little, B 'nFor the adjacent first B-register initial value tied up a little, Bn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low B-register value tied up a little, R 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first RGB register initial values tied up a little.
A kind of OLED modules gamma regulating devices, which is characterized in that including：
Initial value writing module：The first RGB register initial values for that all will tie up a little are written in gamma registers；
Gamma adjustment modules：For being tied up a little to height or low tie up carries out a gamma adjustings, obtains height and tie up a little or low tie up a little
RGB register values；
Register initial value acquisition module：For height to be tied up a little or the low RGB adjusting ratios and adjacent first tied up a little tied up a little
RGB register initial values are multiplied, and obtain adjacent the 2nd RGB register initial values tied up a little；
Gamma adjustment modules are additionally operable to tie up a progress gamma adjustings to adjacent, obtain the adjacent RGB register values tied up a little；
Wherein, high to tie up a little or the low RGB tied up a little adjusts ratio and tied up a little or the low RGB register values and first tied up a little to be high
The ratio of RGB register initial values.
A kind of OLED modules gamma adjusting methods, which is characterized in that including memory, processor and be stored in this and deposit
In reservoir and the computer program that can run on the processor, which is characterized in that the processor is configured as executing the calculating
It is realized when machine program as described in any one of claim 1 to 7 the step of optimization method.
Therefore, the invention has the advantages that：1, the present invention has the characteristics that adjust efficient, and Gamma initial values are being adjusted
Issuing before section is conducive to the raising of efficiency, and faster to be transferred to optimum value, same module adjusts fast 10s or so；2, of the invention
Can solve part IC characteristics leads to gamma dysregulations, by observing the handoff procedure of module gradual change picture, energy in adjustment process
It was found that adjustment process is gentle, there is not phenomena such as showing other abnormal pictures and splashette.The gamma effects that module is presented after adjusting
There is not bright line situation in fruit.
Description of the drawings
Attached drawing 1 be disadvantage of the existing technology cause algorithms library confusion and can not the successful schematic diagrames of gamma.
Attached drawing 2 is the method flow schematic diagram of the present invention.
Attached drawing 3 is the write-in schematic diagram for adjusting start parameter in step 2 of the embodiment of the present invention and issuing.
Attached drawing 4 is crt print result schematic diagrames after step 5 of the embodiment of the present invention is adjusted.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：
One, the specific method case study on implementation for introducing the present invention first, the invention mainly comprises：
Step 1, parameter is configured before adjusting
Electricity is opened on upper layer, and gamma parameter configurations are normal.Gamma is clicked to adjust.
Step 2, it adjusts start parameter and issues upper layer software (applications) according to aga configuration distributing gamma parameters, include mainly register
Address and register initial value, as shown in Figure 3.
Step 3, adjust the front lower gamma initial values before triggering " adjusting " button, upper layer is by gamma parameters (register
Location+register value) it organizes to wrap and issues script, script build_initgamaextdata functions are triggered, data packet is parsed by script,
And a conduct mark will be tied up and packaged, and be respectively written to the corresponding value for helping point gamma registers by the channels mipid0
In module, module shows the state of write-in gamma registers at this time.
Step 4, adjusting action, which is clicked, is adjusted, and SyncDoGammaAssistEx script functions are triggered on upper layer, start to execute tune
Section acts, and adjusting action is executed in conjunction with current adjusting algorithm according to the gamma parameters that step 1 configures.W255 is adjusted first
Rank is tied up a little.W255 can obtain the R/G/B register values of corresponding 255 ranks after the completion of adjusting, as value is：R1,G1,B1.This patent walks
Have in rapid two and all gamma register values are written in advance, is written including the gamma register values of one group of W255, such as W255
Register value is R2, G2, B2.W254 grayscale side point can be calculated according to following algorithm ratio so before adjusting W254
Register value, and be written in module.To push away the side point for needing to adjust in this, this is calculated according to side point above after the adjustment and is tied up
Point needs the initial value being written, and then adjusting W254 ties up gamma (using original adjusting algorithm) a little on this basis.
The purpose that the above operation step is played is to ensure that the gamma states for adjusting preceding module are in a linear relationship, meets curve requirement；
And a gang of point gamma register values under the register value that side is put is more than need to be adjusted, avoid the R/G/B that acquiescence is larger in module from posting
Storage is combined with adjusting write-in R/G/B values there is splashette, or even avoids influence to have crossed after the adjustment from tying up brightness and chromaticity coordinates；
The gamma initial values that are calculated according to ratio almost close to desired value with batch production, at this time when doing gamma adjustings, meeting
It is transferred to dbjective state, and then optimizing regulation time with less regulating step.
The adjacent R tied up a littlenRegister value is obtained based on following formula：
Wherein, RnFor the adjacent R register value tied up a little, R 'nFor adjacent the first R register initial values tied up a little, Rn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low R register value tied up a little, R 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first R register initial value tied up a little.
The adjacent G tied up a littlenRegister value is obtained based on following formula：
Wherein, GnFor the adjacent G register values tied up a little, G 'nFor adjacent the first G register initial values tied up a little, Gn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low G register values tied up a little, G 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first RGB register initial values tied up a little.
The adjacent B tied up a littlenRegister value is obtained based on following formula：
Wherein, BnFor the adjacent B-register value tied up a little, B 'nFor adjacent the first B register initial values tied up a little, Bn+1For
It is adjacent with this to tie up a little adjacent height and tie up a little or the low B-register value tied up a little, R 'n+1For it is adjacent with this tie up a little adjacent height tie up a little or
Low the first RGB register initial values tied up a little.
Step 5, it after adjusting, checks that crt is printed, verifies the write-in situation of the initial gamma register values of gamma, with
Whether expected results meet, as shown in Figure 4.
In the present embodiment, Gamma initial values issuing before adjusting is conducive to the raising of efficiency, faster to be transferred to most
Good value, same module adjust fast 10s or so.
| Adjust number | It is normal to adjust gamma | Gamma values are issued before before tune |
| 1 | 50s | 32 |
| 2 | 55s | 33 |
| 3 | 33.0 | 36 |
Two, the invention further relates to a kind of devices, including：
Initial value writing module：The first RGB register initial values for that all will tie up a little are written in gamma registers；
Gamma adjustment module：For being tied up a little to height or low tie up carries out a gamma adjustings, obtains height and tie up a little or low tie up
The RGB register values of point；
Register initial value acquisition module：For height to be tied up a little or the low RGB adjusting ratios and adjacent first tied up a little tied up a little
RGB register initial values are multiplied, and obtain adjacent the 2nd RGB register initial values tied up a little；
Secondary gamma adjustment modules：A progress gamma adjustings are tied up to adjacent, obtain the adjacent RGB register values tied up a little；
Wherein, high to tie up a little or the low RGB tied up a little adjusts ratio and tied up a little or the low RGB register values and first tied up a little to be high
The ratio of RGB register initial values.
In addition, the present apparatus further includes memory, processor and is stored in the memory and can transport on the processor
Capable computer program, which is characterized in that realized when the processor is configured as executing the computer program as explained in first item
The step of optimization method stated.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (9)
1. a kind of OLED modules gamma adjusting methods, which is characterized in that include the following steps：
It S1) will be in all the first RGB register initial values write-in gamma registers tied up a little；
S2) height is tied up a little or low tie up carries out a gamma adjustings, height is obtained and ties up a little or the low RGB register values tied up a little；
S3) height is tied up a little or the low RGB tied up a little adjusts ratio and is multiplied with adjacent the first RGB register initial values tied up a little, obtains phase
Neighbour ties up the 2nd RGB register initial values a little；
S4 a progress gamma adjustings) are tied up to adjacent, obtain the adjacent RGB register values tied up a little；
S5 step S3, S4) is repeated, all RGB register values tied up a little are obtained；
Wherein, height is tied up a little or the low RGB adjusting ratios tied up a little are that height is tied up a little or the low RGB register values tied up a little are posted with the first RGB
The ratio of storage initial value.
2. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that write in the step S1
The first RGB register initial values for entering gamma registers are issued by script group packet, and detailed process is to post the first RGB
Storage initial value group packet issues script, and script build_initgamaextdata functions parse data packet, and will tie up a conduct mark
It packages, and is respectively written to corresponding the first RGB registers initial value tied up a little in module by the channels mipid0.
3. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that height is tied up a little or low tied up a little
After carrying out gamma adjustings, correspondence height that covering is written before is tied up a little or low is tied up a little by the final RGB register values of acquisition
RGB register values.
4. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that progress height is tied up a little or low
The gamma adjustings tied up a little are executed using SyncDoGammaAssistEx script functions and according to the preconfigured parameter of user
It adjusts.
5. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that the adjacent R tied up a littlenDeposit
Device value is obtained based on following formula：
Wherein, RnFor the adjacent R register value tied up a little, R 'nFor the adjacent first R register initial value tied up a little, Rn+1For with this
It is adjacent to tie up a little adjacent height and tie up a little or the low R register value tied up a little, R 'n+1It ties up a little adjacent height to be adjacent with this and ties up a little or low tie up
First R register initial value of point.
6. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that the adjacent G tied up a littlenDeposit
Device value is obtained based on following formula：
Wherein, GnFor the adjacent G register values tied up a little, G 'nFor adjacent the first G register initial values tied up a little, Gn+1For with this
It is adjacent to tie up a little adjacent height and tie up a little or the low G register values tied up a little, G 'n+1It ties up a little adjacent height to be adjacent with this and ties up a little or low tie up
First RGB register initial values of point.
7. a kind of OLED modules gamma adjusting methods according to claim 1, which is characterized in that the adjacent B tied up a littlenDeposit
Device value is obtained based on following formula：
Wherein, BnFor the adjacent B-register value tied up a little, B 'nFor the adjacent first B-register initial value tied up a little, Bn+1For with this
It is adjacent to tie up a little adjacent height and tie up a little or the low B-register value tied up a little, R 'n+1It ties up a little adjacent height to be adjacent with this and ties up a little or low tie up
First RGB register initial values of point.
8. a kind of OLED modules gamma regulating devices, which is characterized in that including：
Initial value writing module：The first RGB register initial values for that all will tie up a little are written in gamma registers；
Gamma adjustment modules：For being tied up a little to height or low tie up carries out a gamma adjustings, obtain that height is tied up a little or the low RGB tied up a little is posted
Storage value；
Register initial value acquisition module：For by height tie up a little or it is low tie up a little RGB adjusting ratio posted with adjacent the first RGB tied up a little
Storage initial value is multiplied, and obtains adjacent the 2nd RGB register initial values tied up a little；
Gamma adjustment modules are additionally operable to tie up a progress gamma adjustings to adjacent, obtain the adjacent RGB register values tied up a little；
Wherein, height is tied up a little or the low RGB adjusting ratios tied up a little are that height is tied up a little or the low RGB register values tied up a little are posted with the first RGB
The ratio of storage initial value.
9. a kind of OLED modules gamma adjusting methods, which is characterized in that including memory, processor and be stored in the storage
In device and the computer program that can run on the processor, which is characterized in that the processor is configured as executing the computer
It is realized when program as described in any one of claim 1 to 7 the step of optimization method.
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| WO2021223526A1 (en) * | 2020-05-08 | 2021-11-11 | 昆山国显光电有限公司 | Gamma debugging method and apparatus |
| CN114333670A (en) * | 2021-12-10 | 2022-04-12 | 北京镁伽科技有限公司 | Gamma correction method and apparatus, electronic device, and storage medium |
| CN114333670B (en) * | 2021-12-10 | 2023-06-30 | 北京镁伽科技有限公司 | Gamma correction method and device, electronic equipment and storage medium |
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