CN105702215A - Gamma voltage correction method and device - Google Patents
Gamma voltage correction method and device Download PDFInfo
- Publication number
- CN105702215A CN105702215A CN201610267049.2A CN201610267049A CN105702215A CN 105702215 A CN105702215 A CN 105702215A CN 201610267049 A CN201610267049 A CN 201610267049A CN 105702215 A CN105702215 A CN 105702215A
- Authority
- CN
- China
- Prior art keywords
- gtg
- display module
- data voltage
- gamma
- feature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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] using an active matrix
- G09G3/3258—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] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Picture Signal Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a gamma voltage correction method and device, relates to the field of display, and can solve the present problem of long time of gamma correction so that production efficiency can be enhanced. The gamma voltage correction method comprises the steps that S1, data voltage corresponding to characteristic gray scale points is acquired; S2, gamma register values corresponding all binding point gray scales are acquired; S3, fine adjustment is performed: the gamma register values of all the binding point gray scales are inputted to a display module group, based on which fine adjustment is performed on the optical parameters of all the gray scales; and S4, testing is performed: a gamma curve of the display module group is tested and compared with a target gamma curve, and the step S3 is continuously performed if the gamma curve does not meet the requirements of product specifications until the display module group meets the requirements of the product specifications.
Description
Technical field
The present invention relates to display field, particularly relate to a kind of gamma electric voltage bearing calibration and device。
Background technology
Along with the development of AMOLED (Active-matrixorganiclightemittingdiode, active matrix organic light-emitting diode) Display Technique, increasing electronic product begins to use AMOLED display screen。But AMOLED display screen is in process of production, still having some difficult points to need to overcome, one of them is exactly the optical parametric adjustment of AMOLED screen。
Owing to AMOLED display screen adopts current mode drive, and it drives the operating point of thin film transistor (TFT) to be positioned at the range of linearity of transfer characteristic, operating voltage range is narrower, so AMOLED is very sensitive to the change of data voltage, the little difference to several millivolts also can be embodied in display effect, and no matter be AMOLED display floater on the other hand, or driving chip, all it is difficult to ensure that the difference of product attribute is limited in millivolt level in production technology, therefore, need every display screen module is carried out optical parametric adjustment, namely every display screen module is required for carrying out gamma electric voltage correction。
The method that current AMOLED product carries out gamma electric voltage correction, it is that each is tied up a GTG (corresponding adjustable GTG in driving chip, tie up a little also known as GTG) brightness, the optical parametric such as chromaticity coordinates adjust the desired value of correspondence, but at present high-resolution screen module tie up a GTG generally up to tens, each GTG of tying up often needs again repeatedly to adjust, therefore carry out the chronic of gamma correction, affect production efficiency。
Summary of the invention
The present invention provides a kind of gamma electric voltage bearing calibration and device, the problem solving existing gamma correction time length, it is possible to improve production efficiency。
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of gamma electric voltage bearing calibration, including: S1, the data voltage that acquisition feature GTG point is corresponding: on display module, optical parametric corresponding for described feature GTG point is adjusted desired value, obtaining data voltage corresponding to described feature GTG point after adjusting, described feature GTG point is chosen from tying up a GTG；S2, obtain each and tie up the gamma register value that a GTG is corresponding: the data voltage according to described feature GTG point, by interpolation method acquisition, except described feature GTG point, other ties up the data voltage that a GTG is corresponding, then the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding；S3, fine setting: the described gamma register value that each ties up a GTG is input to described display module, and on this basis each optical parametric tying up a GTG is finely tuned；S4, test: test the gamma curve of described display module, and compare with target gamma curve, if being unsatisfactory for product specification requirement, then continue executing with step S3, until described display module meets product specification requirement。
Alternatively, step S1 chooses most high gray L255 and middle GTG L128 as feature GTG point from tying up a GTG。
Specifically, on display module, optical parametric corresponding for described feature GTG point is adjusted desired value, including: calculate the desired value of optical parametric corresponding to described feature GTG point according to described target gamma curve；Adjusting the gamma register value that described feature GTG point is corresponding, testing the optical parametric after described gamma register value inputs described display module by color analysis instrument, until adjusting described optical parametric to described desired value simultaneously。
Specifically, in step S2, by interpolation method acquisition, except described feature GTG point, other ties up the data voltage that a GTG is corresponding, including: the relation property according to the data voltage of the data voltage of described feature GTG point and display module with GTG, matching draws interpolating function；According to described interpolating function, it is thus achieved that except described feature GTG point, other ties up the data voltage that a GTG is corresponding。
Further, step S3 also includes: the gamma register value that low GTG is corresponding is compensated。
Specifically, described optical parametric includes brightness and chromaticity coordinates。
The present invention also provides for a kind of gamma electric voltage correcting unit, suitable in the bearing calibration described in any of the above-described item, including: correction control apparatus, lighting machine and color analysis instrument, described correction control apparatus, for being sent to showing module by described lighting machine by feature GTG point, described feature GTG point is chosen from tying up a GTG；Described correction control apparatus is additionally operable to receive the measurement result of described color analysis instrument, and the gamma register value of the driving chip described feature GTG point of adjustment according to the measurement result described display module of control, the optical parametric making described display module is consistent with desired value；Described correction control apparatus is additionally operable to, when the optical parametric judging described display module is consistent with described desired value, obtain the data voltage that described feature GTG point is corresponding；And the data voltage according to described feature GTG point, by interpolation method acquisition, except described feature GTG point, other ties up the data voltage that a GTG is corresponding, and the then data voltage formula according to driving chip calculates each and ties up the gamma register value that a GTG is corresponding；Described correction control apparatus is additionally operable to tie up each described gamma register value of a GTG and is input to described display module by described lighting machine, and control described display module on this basis each optical parametric tying up a GTG is finely tuned, until described display module meets product specification requirement；Lighting machine, is connected with display module and described correction control apparatus, for providing power supply and control signal to display module；Color analysis instrument, is connected with described correction control apparatus, for testing the optical parametric after described gamma register value inputs described display module。
Alternatively, described correction control apparatus is computer。
Alternatively, described correction control apparatus, including: the first computing unit, for calculating the desired value of optical parametric corresponding to described feature GTG point according to target gamma curve；Adjustment unit, for optical parametric according to described measured by color analyzer, controls described display module and adjusts the gamma register value that described feature GTG point is corresponding, until by consistent with described desired value for the described optical parametric that records；Acquiring unit, for obtaining the data voltage that described feature GTG point is corresponding when described optical parametric is consistent with described desired value。
Alternatively, described correction control apparatus, including: fitting unit, it is used for the data voltage of the data voltage according to described feature GTG point and described display module and the relation property of GTG, matching draws interpolating function；Second computing unit, for according to described interpolating function, it is thus achieved that except described feature GTG point, other ties up the data voltage that a GTG is corresponding；3rd computing unit, for the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding。
Gamma electric voltage bearing calibration provided by the invention and device, choose some feature GTG points from tying up a GTG, then carries out optical parametric adjustment for feature GTG point on display module, treats that optical parametric adjusts to desired value and obtains the data voltage of its correspondence；Then the data voltage according to feature GTG point, obtains other by interpolation method and ties up the data voltage that a GTG is corresponding, further according to the data voltage formula of driving chip, instead releases each and ties up the gamma register value that a GTG is corresponding；The gamma register value that each finally ties up a GTG is input to display module, and on this basis each optical parametric tying up a GTG is finely tuned, display module is made to meet product specification requirement, so without adjusting one by one for all GTGs of tying up, adjustment number of times can also be greatly reduced, quickly obtain target gamma register value, it is possible to largely reduce the time of gamma correction, improve production efficiency。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
The gamma electric voltage bearing calibration flow chart one that Fig. 1 provides for the embodiment of the present invention；
The gamma electric voltage bearing calibration flowchart 2 that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 is the correlation curve figure of data voltage and the actual value gone out by interpolation calculation in the embodiment of the present invention；
The gamma electric voltage correcting unit schematic diagram that Fig. 4 provides for the embodiment of the present invention。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Embodiment
The embodiment of the present invention provides a kind of gamma electric voltage bearing calibration, as it is shown in figure 1, include:
S1, obtaining data voltage corresponding to feature GTG point: on display module, optical parametric corresponding for described feature GTG point adjusts desired value, obtain the data voltage that after adjusting, described feature GTG point is corresponding, described feature GTG point is chosen from tying up a GTG；
Regulate gamma curve, a small amount of GTG can be chosen as point of adjustment, for instance, the system of 8bit color depth, GTG is 0 to 255, and as chosen 255,223,191,128,107,64,35,15 and 0, these points are just referred to as ties up a GTG。In this step from tie up a GTG is chosen some as feature GTG point, then each feature GTG point is performed following operation: adjust, on display module, the gamma register value that feature GTG point is corresponding, simultaneously by optical parametrics such as the brightness after color analysis instrument test gamma register value input display module, chromaticity coordinates, until being adjusted by these optical parametrics to desired value (being determined by product specification when designing), obtain the data voltage that after adjusting, feature GTG point is corresponding。
If providing display module and being intended to by correcting the gamma curve (i.e. target gamma curve) obtained, this step first can calculate the desired value of optical parametric corresponding to each feature GTG point according to target gamma curve, then on display module, optical parametric corresponding for each feature GTG point is adjusted desired value, obtains the data voltage that after adjusting, each feature GTG point is corresponding。
Certainly, the embodiment of the present invention is not limited to above-mentioned optical parametric method of adjustment and device, can also be that well-known to those skilled in the art other arbitrarily realizes method and device, as long as optical parametric corresponding for each feature GTG point being adjusted desired value and obtaining the data voltage of correspondence。
Additionally, it should be noted that, in this step from tie up a GTG is chosen some as feature GTG point, specifically chosen which tie up a GTG as feature GTG point, the present embodiment does not limit, and obtains other requirement tying up data voltage corresponding to a GTG as long as can meet in the next step by interpolation method。If data voltage and GTG linearly change, principle selects two feature GTG points, it is preferable that this step S1 chooses most high gray L255 and centre GTG L128 as feature GTG point from tying up a GTG, during by interpolation calculation, accuracy is higher。
S2, obtain each and tie up the gamma register value that a GTG is corresponding: the data voltage according to feature GTG point, by interpolation method acquisition, except feature GTG point, other ties up the data voltage that a GTG is corresponding, then the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding；
Specifically, elder generation's relation property according to the data voltage of feature GTG point and the data voltage of display module and GTG in this step, matching draws interpolating function；Further according to described interpolating function, it is thus achieved that respectively tie up the data voltage that a GTG is corresponding；Finally, the data voltage formula (i.e. the corresponding relation of GTG and data voltage) according to driving chip, calculate each and tie up the gamma register value that a GTG is corresponding。
Such as, if data voltage and GTG linearly change, the interpolating function simulated is linear function, the coefficient of linear function is calculated by feature GTG point and data voltage thereof, thus drawing interpolating function, obtain according to interpolating function and respectively tie up the data voltage that a GTG is corresponding, finally counter accordingly release each and tie up the gamma register value that a GTG is corresponding。
S3, fine setting: each the gamma register value tying up GTG previous step obtained is input to display module, and on this basis each optical parametric tying up a GTG is finely tuned；
Each gamma register value tying up a GTG that previous step is obtained by this step is input to display module one by one, show, by color analysis instrument test, the optical parametric that module is corresponding simultaneously, adjusting this and tie up gamma register value corresponding to a GTG (this step is called fine setting), what adjusted by optical parametric is consistent with desired value as far as possible。Optical parametric generally comprises brightness and chromaticity coordinates, and therefore trim step includes: by brightness adjustment to object brightness, and adjusts chromaticity coordinates to consistent with target color coordinates。Object brightness and target color coordinates are determined by product specification, generally pre-set。
S4, test: test the gamma curve of described display module, and compare with target gamma curve, if being unsatisfactory for product specification requirement, then continue executing with step S3, until described display module meets product specification requirement。
Tie up after a GTG finely tunes one by one for each, the gamma curve test to display module, and the gamma curve recorded and target gamma curve are compared, if meeting product specification requirement, then gamma correction terminates；If being unsatisfactory for product specification requirement, then continue executing with step S3 and each is tied up a GTG finely tune, until display module meets product specification requirement。
Gamma electric voltage bearing calibration provided by the invention, obtained the gamma register value respectively tying up a GTG according to feature GTG point by interpolation calculation, finely tune again on this basis, it is possible to quickly obtain target gamma register value, reduce the time of gamma correction, improve production efficiency。
As in figure 2 it is shown, another gamma electric voltage bearing calibration that the present invention also provides for, including:
S101, the data voltage that acquisition feature GTG point is corresponding；
S102, interpolation method obtain and tie up the data voltage that a GTG is corresponding；
S103, push away each and tie up, according to luma data voltage equation is counter, the gamma register value that a GTG is corresponding；
S104, low gray scale compensation；
S105, gamma fine setting；
S106, check gamma curve whether OK, if the gamma curve recorded is unsatisfactory for product specification requirement, then continue executing with step S105, until display module meets product specification requirement。
Gamma electric voltage bearing calibration provided by the invention, with differing only in of a upper embodiment, release after each ties up the gamma register value that a GTG is corresponding step S103 is counter according to luma data voltage equation, rule of thumb or preposition experiment speculate that the low luma data voltage that obtained by interpolation calculation and actual value deviation are bigger, before step S105 input display module fine setting, it is adjusted low luma data voltage in advance compensating。As it is shown on figure 3, GTG 0～80 data voltage value of calculation and actual value deviation are relatively big, it is adjusted in advance, to compensate deviation, shortens the time of step S105 fine setting, reduce the time of gamma correction further, improve production efficiency。
As shown in Figure 4, the present embodiment also provides for a kind of gamma electric voltage correcting unit, suitable in the bearing calibration described in any of the above-described kind, specifically include: correction control apparatus 11, lighting machine 12 and color analysis instrument 13, correction control apparatus 11, for being sent to display module 14 by lighting machine 12 by feature GTG point, feature GTG point is chosen from tying up a GTG；Correction control apparatus 11 is additionally operable to receive the measurement result of color analysis instrument 13, and controls to show the gamma register value that the driving chip of module 14 adjusts feature GTG point according to measurement result, and the optical parametric making display module 14 is consistent with desired value；Correction control apparatus 11 is additionally operable to, when the optical parametric judging display module 14 is consistent with desired value, obtain the data voltage that feature GTG point is corresponding；And the data voltage according to feature GTG point, by interpolation method acquisition, except feature GTG point, other ties up the data voltage that a GTG is corresponding, and the then data voltage formula according to driving chip calculates each and ties up the gamma register value that a GTG is corresponding；Correction control apparatus 11 is additionally operable to the gamma register value that each ties up a GTG and is input to display module 14 by lighting machine 12, and control on this basis to show that each optical parametric tying up a GTG is finely tuned by module 14, until display module 14 meets product specification requirement；Lighting machine 12, is connected with display module 14 and correction control apparatus 11, for providing power supply and control signal to display module 14；Color analysis instrument 13, is connected with correction control apparatus 11, for testing the optical parametric after the input of gamma register value shows module 14。
In the present embodiment, correction control apparatus 11 controls display module 14 by lighting machine 12 and shows GTG, the optical parametrics such as brightness when color analysis instrument 13 test display module 14 shows this GTG, chromaticity coordinates, the measurement result input correction control apparatus 11 of color analysis instrument 13, correction control apparatus 11 controls display module 14 and adjusts the gamma register value that this GTG is corresponding, makes the optical parametrics such as display module 14 brightness, chromaticity coordinates consistent with desired value。Above-mentioned gamma electric voltage correcting unit carries out gamma electric voltage timing by the method described in the present embodiment, first pass through the cooperation of correction control apparatus 11, lighting machine 12 and color analysis instrument 13, optical parametric corresponding for feature GTG point adjusts desired value by display module, and obtains the data voltage that feature GTG point after adjustment is corresponding；Then, the correction control apparatus 11 data voltage according to feature GTG point, obtained by interpolation method that other ties up the data voltage that a GTG is corresponding except described feature GTG point, calculate each further according to the data voltage formula of driving chip and tie up the gamma register value that a GTG is corresponding；Correction control apparatus 11 each is tied up gamma register value corresponding to a GTG by lighting machine 12 send display module display, on this basis each optical parametric tying up a GTG is finely tuned；Finally checking whether the gamma curve of display module meets product specification requirement, satisfied then gamma electric voltage trimming process terminates, and is unsatisfactory for, and correction control apparatus 11 continues to control display module and finely tunes。
Preferably, correction control apparatus 11 is computer, and certainly, correction control apparatus 11 can also be that other has the logical device of programing function。
Specifically, correction control apparatus 11 includes: the first computing unit, for calculating the desired value of optical parametric corresponding to feature GTG point according to target gamma curve；Adjustment unit, for the optical parametric that records according to color analysis instrument 13, controls display module 14 and adjusts the gamma register value that feature GTG point is corresponding, until by consistent with desired value for the optical parametric that records；Acquiring unit, for obtaining the data voltage that described feature GTG point is corresponding when described optical parametric is consistent with described desired value。
The present embodiment correction control apparatus 11 controls display module and adjusts the optical parametric of feature GTG point, and obtain, with desired value, the data voltage that feature GTG point is corresponding at optical parametric time consistent, in order to go out other gamma register value tying up a GTG subsequently through interpolation calculation。
Correction control apparatus 11 further comprises: fitting unit, is used for the data voltage of the data voltage according to feature GTG point and display module and the relation property of GTG, and matching draws interpolating function；Second computing unit, for according to described interpolating function, it is thus achieved that except described feature GTG point, other ties up the data voltage that a GTG is corresponding；3rd computing unit, for the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding。
The present embodiment correction control apparatus 11 goes out other gamma register value tying up a GTG by interpolation calculation, it is possible to quickly obtain target gamma register value, it is possible to largely reduce the time of gamma correction, improves production efficiency。
The embodiment of the present invention provides gamma electric voltage correcting unit, it is possible to quickly obtain target gamma register value, reduces the display module gamma correction time, improves production efficiency。
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can be by the hardware that computer program carrys out instruction relevant to complete, described program can be stored in a computer read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each side method。Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.。
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention。Therefore, protection scope of the present invention should be as the criterion with scope of the claims。
Claims (10)
1. a gamma electric voltage bearing calibration, it is characterised in that including:
S1, obtaining data voltage corresponding to feature GTG point: on display module, optical parametric corresponding for described feature GTG point adjusts desired value, obtain the data voltage that after adjusting, described feature GTG point is corresponding, described feature GTG point is chosen from tying up a GTG；
S2, obtain each and tie up the gamma register value that a GTG is corresponding: the data voltage according to described feature GTG point, by interpolation method acquisition, except described feature GTG point, other ties up the data voltage that a GTG is corresponding, then the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding；
S3, fine setting: the described gamma register value that each ties up a GTG is input to described display module, and on this basis each optical parametric tying up a GTG is finely tuned；
S4, test: test the gamma curve of described display module, and compare with target gamma curve, if being unsatisfactory for product specification requirement, then continue executing with step S3, until described display module meets product specification requirement。
2. bearing calibration according to claim 1, it is characterised in that choose most high gray L255 and middle GTG L128 a GTG as feature GTG point from tying up in step S1。
3. bearing calibration according to claim 1, it is characterised in that on display module, optical parametric corresponding for described feature GTG point is adjusted desired value, including:
The desired value of optical parametric corresponding to described feature GTG point is calculated according to described target gamma curve；
Adjusting the gamma register value that described feature GTG point is corresponding, testing the optical parametric after described gamma register value inputs described display module by color analysis instrument, until adjusting described optical parametric to described desired value simultaneously。
4. bearing calibration according to claim 1, it is characterised in that in step S2, other ties up the data voltage that a GTG is corresponding except described feature GTG point by interpolation method acquisition, including:
The data voltage of data voltage according to described feature GTG point and display module and the relation property of GTG, matching draws interpolating function；According to described interpolating function, it is thus achieved that except described feature GTG point, other ties up the data voltage that a GTG is corresponding。
5. bearing calibration according to claim 1, it is characterised in that step S3 also includes: the gamma register value that low GTG is corresponding is compensated。
6. the bearing calibration according to any one of claim 1-5, it is characterised in that described optical parametric includes brightness and chromaticity coordinates。
7. a gamma electric voltage correcting unit, it is adaptable to the bearing calibration described in any one of claim 1-6, it is characterised in that including: correction control apparatus, lighting machine and color analysis instrument,
Described correction control apparatus, for being sent to showing module by described lighting machine by feature GTG point, described feature GTG point is chosen from tying up a GTG；Described correction control apparatus is additionally operable to receive the measurement result of described color analysis instrument, and the gamma register value of the driving chip described feature GTG point of adjustment according to the measurement result described display module of control, the optical parametric making described display module is consistent with desired value；Described correction control apparatus is additionally operable to, when the optical parametric judging described display module is consistent with described desired value, obtain the data voltage that described feature GTG point is corresponding；And the data voltage according to described feature GTG point, by interpolation method acquisition, except described feature GTG point, other ties up the data voltage that a GTG is corresponding, and the then data voltage formula according to driving chip calculates each and ties up the gamma register value that a GTG is corresponding；Described correction control apparatus is additionally operable to tie up each described gamma register value of a GTG and is input to described display module by described lighting machine, and control described display module on this basis each optical parametric tying up a GTG is finely tuned, until described display module meets product specification requirement；
Lighting machine, is connected with display module and described correction control apparatus, for providing power supply and control signal to display module；
Color analysis instrument, is connected with described correction control apparatus, for testing the optical parametric after described gamma register value inputs described display module。
8. gamma electric voltage correcting unit according to claim 7, it is characterised in that described correction control apparatus is computer。
9. gamma electric voltage correcting unit according to claim 7, it is characterised in that described correction control apparatus, including:
First computing unit, for calculating the desired value of optical parametric corresponding to described feature GTG point according to target gamma curve；
Adjustment unit, for optical parametric according to described measured by color analyzer, controls described display module and adjusts the gamma register value that described feature GTG point is corresponding, until by consistent with described desired value for the described optical parametric that records；
Acquiring unit, for obtaining the data voltage that described feature GTG point is corresponding when described optical parametric is consistent with described desired value。
10. the gamma electric voltage correcting unit according to any one of claim 7-9, it is characterised in that described correction control apparatus, including:
Fitting unit, is used for the data voltage of the data voltage according to described feature GTG point and display module and the relation property of GTG, and matching draws interpolating function；
Second computing unit, for according to described interpolating function, it is thus achieved that except described feature GTG point, other ties up the data voltage that a GTG is corresponding；
3rd computing unit, for the data voltage formula according to driving chip, calculates each and ties up the gamma register value that a GTG is corresponding。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267049.2A CN105702215B (en) | 2016-04-26 | 2016-04-26 | Gamma electric voltage bearing calibration and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267049.2A CN105702215B (en) | 2016-04-26 | 2016-04-26 | Gamma electric voltage bearing calibration and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105702215A true CN105702215A (en) | 2016-06-22 |
| CN105702215B CN105702215B (en) | 2018-05-25 |
Family
ID=56217728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610267049.2A Active CN105702215B (en) | 2016-04-26 | 2016-04-26 | Gamma electric voltage bearing calibration and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105702215B (en) |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384573A (en) * | 2016-11-04 | 2017-02-08 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method based on linear interpolation calculation |
| CN106448559A (en) * | 2016-10-31 | 2017-02-22 | 昆山国显光电有限公司 | Method and device for adjusting value of gamma register of display |
| CN106604024A (en) * | 2016-12-14 | 2017-04-26 | 北京集创北方科技股份有限公司 | Image data processing method and apparatus |
| CN107068055A (en) * | 2017-05-17 | 2017-08-18 | 京东方科技集团股份有限公司 | The gamma electric voltage method of adjustment and device of a kind of curved face display panel |
| CN107221288A (en) * | 2017-08-01 | 2017-09-29 | 京东方科技集团股份有限公司 | Gray scale voltage adjusting means and method, display drive apparatus and display device |
| CN107845365A (en) * | 2017-11-22 | 2018-03-27 | 深圳市华星光电半导体显示技术有限公司 | The compensation system of displayer and compensation method |
| CN108364606A (en) * | 2018-02-11 | 2018-08-03 | 武汉精测电子集团股份有限公司 | A kind of OLED modules gamma adjusting methods |
| CN108648707A (en) * | 2018-05-02 | 2018-10-12 | 武汉精测电子集团股份有限公司 | P-GAMMA Self-regulation track method and apparatus based on middle large scale module |
| CN108665849A (en) * | 2018-05-03 | 2018-10-16 | 武汉精测电子集团股份有限公司 | A kind of method and device adjusted based on multigroup gamma and power supply dynamic adjusts |
| CN108986731A (en) * | 2018-08-07 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of display panel and its compensation method, display device |
| CN109029918A (en) * | 2018-06-06 | 2018-12-18 | 武汉精测电子集团股份有限公司 | A kind of gamma adjusts the method and device tied up a little |
| CN109166555A (en) * | 2018-10-29 | 2019-01-08 | 重庆先进光电显示技术研究院 | Gamma-curve correction method and device |
| CN109509462A (en) * | 2019-01-21 | 2019-03-22 | 深圳市华星光电半导体显示技术有限公司 | Luminance regulating method and device under panel energy-saving mode |
| CN109686307A (en) * | 2019-01-04 | 2019-04-26 | 京东方科技集团股份有限公司 | Generation method and device, display panel, the display device of gamma reference voltage |
| CN109767729A (en) * | 2019-04-01 | 2019-05-17 | 昆山国显光电有限公司 | A kind of gamma-debugged method of screen body and display module |
| CN109767722A (en) * | 2017-11-09 | 2019-05-17 | 上海和辉光电有限公司 | A kind of OLED mould group Gamma adjusting method and regulating device |
| CN110164371A (en) * | 2018-11-20 | 2019-08-23 | 京东方科技集团股份有限公司 | The gamma correction method and device of display module |
| CN110264952A (en) * | 2019-06-18 | 2019-09-20 | 京东方科技集团股份有限公司 | Gamma electric voltage adjusting process and gamma electric voltage calibration apparatus |
| CN110310596A (en) * | 2019-06-17 | 2019-10-08 | 武汉精立电子技术有限公司 | A kind of the GAMMA adjusting initial value prediction technique and system of OLED mould group |
| CN110473499A (en) * | 2019-07-18 | 2019-11-19 | 武汉天马微电子有限公司 | Gamma electric voltage adjustment method, display panel and display device for display panel |
| CN110634437A (en) * | 2019-09-26 | 2019-12-31 | 昆山国显光电有限公司 | Gamma curve acquisition method and device for multi-segment display brightness and display equipment |
| CN110767138A (en) * | 2019-01-31 | 2020-02-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| CN111161676A (en) * | 2020-02-25 | 2020-05-15 | 云谷（固安）科技有限公司 | Processing equipment and processing method of display module and display module |
| CN111739457A (en) * | 2020-07-03 | 2020-10-02 | 昆山国显光电有限公司 | Gamma debugging system and gamma debugging method |
| CN112017578A (en) * | 2020-09-02 | 2020-12-01 | Tcl华星光电技术有限公司 | Display panel setting method and display panel |
| CN112071264A (en) * | 2020-09-09 | 2020-12-11 | 北京集创北方科技股份有限公司 | Gamma correction method and device |
| CN113053310A (en) * | 2019-01-31 | 2021-06-29 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| CN113077746A (en) * | 2021-03-23 | 2021-07-06 | Tcl华星光电技术有限公司 | Gamma correction method and device for display panel |
| CN113383383A (en) * | 2019-07-17 | 2021-09-10 | 深圳市柔宇科技股份有限公司 | Gamma debugging method and device for display module |
| CN114170960A (en) * | 2021-12-07 | 2022-03-11 | 南京国兆光电科技有限公司 | Customized Gamma correction method for silicon-based OLED micro display screen |
| CN114333675A (en) * | 2021-12-30 | 2022-04-12 | 昆山国显光电有限公司 | Display compensation method, display compensation device, display device and storage medium |
| CN114519987A (en) * | 2022-01-28 | 2022-05-20 | 广州朗国电子科技股份有限公司 | Gamma correction method, system and storage medium for display |
| CN115410511A (en) * | 2022-09-05 | 2022-11-29 | 信利光电股份有限公司 | Automatic Gamma correction method and device for display module |
| WO2024065382A1 (en) * | 2022-09-29 | 2024-04-04 | 京东方科技集团股份有限公司 | Display brightness adjusting method and adjusting device, and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002366122A (en) * | 2001-06-02 | 2002-12-20 | Samsung Electronics Co Ltd | Liquid crystal display device and its driving method |
| US20060022925A1 (en) * | 2004-07-27 | 2006-02-02 | Seiko Epson Corporation | Grayscale voltage generation circuit, driver circuit, and electro-optical device |
| JP2009020498A (en) * | 2007-06-01 | 2009-01-29 | Natl Semiconductor Corp <Ns> | Video display driver having partial memory control |
| US20100182348A1 (en) * | 2009-01-16 | 2010-07-22 | Nec Electronics Corporation | Signal voltage generation circuit, display panel driving device, and display apparatus |
| CN103325357A (en) * | 2013-07-05 | 2013-09-25 | 合肥京东方光电科技有限公司 | Gamma voltage adjusting method and system as well as electronic equipment |
| CN103996391A (en) * | 2014-04-18 | 2014-08-20 | 京东方科技集团股份有限公司 | Gamma correction circuit and display device |
| CN105489184A (en) * | 2016-01-22 | 2016-04-13 | 京东方科技集团股份有限公司 | Gamma voltage control system, control method and display device |
-
2016
- 2016-04-26 CN CN201610267049.2A patent/CN105702215B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002366122A (en) * | 2001-06-02 | 2002-12-20 | Samsung Electronics Co Ltd | Liquid crystal display device and its driving method |
| US20060022925A1 (en) * | 2004-07-27 | 2006-02-02 | Seiko Epson Corporation | Grayscale voltage generation circuit, driver circuit, and electro-optical device |
| JP2009020498A (en) * | 2007-06-01 | 2009-01-29 | Natl Semiconductor Corp <Ns> | Video display driver having partial memory control |
| US20100182348A1 (en) * | 2009-01-16 | 2010-07-22 | Nec Electronics Corporation | Signal voltage generation circuit, display panel driving device, and display apparatus |
| CN103325357A (en) * | 2013-07-05 | 2013-09-25 | 合肥京东方光电科技有限公司 | Gamma voltage adjusting method and system as well as electronic equipment |
| CN103996391A (en) * | 2014-04-18 | 2014-08-20 | 京东方科技集团股份有限公司 | Gamma correction circuit and display device |
| CN105489184A (en) * | 2016-01-22 | 2016-04-13 | 京东方科技集团股份有限公司 | Gamma voltage control system, control method and display device |
Cited By (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448559A (en) * | 2016-10-31 | 2017-02-22 | 昆山国显光电有限公司 | Method and device for adjusting value of gamma register of display |
| CN106384573A (en) * | 2016-11-04 | 2017-02-08 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method based on linear interpolation calculation |
| CN106604024B (en) * | 2016-12-14 | 2018-07-17 | 北京集创北方科技股份有限公司 | Image processing method and its device |
| CN106604024A (en) * | 2016-12-14 | 2017-04-26 | 北京集创北方科技股份有限公司 | Image data processing method and apparatus |
| CN107068055A (en) * | 2017-05-17 | 2017-08-18 | 京东方科技集团股份有限公司 | The gamma electric voltage method of adjustment and device of a kind of curved face display panel |
| CN107068055B (en) * | 2017-05-17 | 2019-02-15 | 京东方科技集团股份有限公司 | A kind of the gamma electric voltage method of adjustment and device of curved face display panel |
| CN107221288A (en) * | 2017-08-01 | 2017-09-29 | 京东方科技集团股份有限公司 | Gray scale voltage adjusting means and method, display drive apparatus and display device |
| US10453399B2 (en) | 2017-08-01 | 2019-10-22 | Boe Technology Group Co., Ltd. | Grayscale voltage adjusting apparatus and method, display driving apparatus and display apparatus |
| CN107221288B (en) * | 2017-08-01 | 2019-11-05 | 京东方科技集团股份有限公司 | Gray scale voltage regulating device and method, display drive apparatus and display device |
| CN109767722A (en) * | 2017-11-09 | 2019-05-17 | 上海和辉光电有限公司 | A kind of OLED mould group Gamma adjusting method and regulating device |
| CN107845365A (en) * | 2017-11-22 | 2018-03-27 | 深圳市华星光电半导体显示技术有限公司 | The compensation system of displayer and compensation method |
| CN108364606A (en) * | 2018-02-11 | 2018-08-03 | 武汉精测电子集团股份有限公司 | A kind of OLED modules gamma adjusting methods |
| CN108364606B (en) * | 2018-02-11 | 2020-10-30 | 武汉精测电子集团股份有限公司 | Gamma adjusting method for OLED module |
| CN108648707A (en) * | 2018-05-02 | 2018-10-12 | 武汉精测电子集团股份有限公司 | P-GAMMA Self-regulation track method and apparatus based on middle large scale module |
| CN108665849B (en) * | 2018-05-03 | 2020-04-10 | 武汉精测电子集团股份有限公司 | Method and device based on multi-group gamma regulation and dynamic power supply regulation |
| CN108665849A (en) * | 2018-05-03 | 2018-10-16 | 武汉精测电子集团股份有限公司 | A kind of method and device adjusted based on multigroup gamma and power supply dynamic adjusts |
| CN109029918A (en) * | 2018-06-06 | 2018-12-18 | 武汉精测电子集团股份有限公司 | A kind of gamma adjusts the method and device tied up a little |
| CN109029918B (en) * | 2018-06-06 | 2020-07-10 | 武汉精测电子集团股份有限公司 | Method and device for adjusting binding point by gamma |
| CN108986731A (en) * | 2018-08-07 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of display panel and its compensation method, display device |
| CN109166555A (en) * | 2018-10-29 | 2019-01-08 | 重庆先进光电显示技术研究院 | Gamma-curve correction method and device |
| CN109166555B (en) * | 2018-10-29 | 2021-12-21 | 重庆先进光电显示技术研究院 | Gamma curve correction method and device |
| CN110164371A (en) * | 2018-11-20 | 2019-08-23 | 京东方科技集团股份有限公司 | The gamma correction method and device of display module |
| CN110164371B (en) * | 2018-11-20 | 2021-01-26 | 京东方科技集团股份有限公司 | Gamma correction method and device for display module |
| WO2020103498A1 (en) * | 2018-11-20 | 2020-05-28 | Boe Technology Group Co., Ltd. | Device, system and method for display gamma correction |
| CN109686307B (en) * | 2019-01-04 | 2020-06-23 | 京东方科技集团股份有限公司 | Gamma reference voltage generation method and device, display panel and display device |
| CN109686307A (en) * | 2019-01-04 | 2019-04-26 | 京东方科技集团股份有限公司 | Generation method and device, display panel, the display device of gamma reference voltage |
| CN109509462A (en) * | 2019-01-21 | 2019-03-22 | 深圳市华星光电半导体显示技术有限公司 | Luminance regulating method and device under panel energy-saving mode |
| CN110767138A (en) * | 2019-01-31 | 2020-02-07 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| US11158247B2 (en) | 2019-01-31 | 2021-10-26 | Kunshan Go-Visionox Opto-Electronics Co., Ltd. | Gamma adjustment method and adjustment device for display panel |
| CN113053310A (en) * | 2019-01-31 | 2021-06-29 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| CN110767138B (en) * | 2019-01-31 | 2020-12-04 | 昆山国显光电有限公司 | Gamma adjusting method and device for display panel and display equipment |
| CN109767729B (en) * | 2019-04-01 | 2023-10-31 | 广州国显科技有限公司 | Screen gamma debugging method and display module |
| CN109767729A (en) * | 2019-04-01 | 2019-05-17 | 昆山国显光电有限公司 | A kind of gamma-debugged method of screen body and display module |
| CN110310596A (en) * | 2019-06-17 | 2019-10-08 | 武汉精立电子技术有限公司 | A kind of the GAMMA adjusting initial value prediction technique and system of OLED mould group |
| CN110310596B (en) * | 2019-06-17 | 2021-03-12 | 武汉精立电子技术有限公司 | GAMMA (GAMMA-GAMMA) adjustment initial value prediction method and system of OLED module |
| CN110264952A (en) * | 2019-06-18 | 2019-09-20 | 京东方科技集团股份有限公司 | Gamma electric voltage adjusting process and gamma electric voltage calibration apparatus |
| CN113383383A (en) * | 2019-07-17 | 2021-09-10 | 深圳市柔宇科技股份有限公司 | Gamma debugging method and device for display module |
| CN110473499B (en) * | 2019-07-18 | 2023-11-21 | 武汉天马微电子有限公司 | Gamma voltage debugging method for display panel, display panel and display device |
| CN110473499A (en) * | 2019-07-18 | 2019-11-19 | 武汉天马微电子有限公司 | Gamma electric voltage adjustment method, display panel and display device for display panel |
| CN110634437A (en) * | 2019-09-26 | 2019-12-31 | 昆山国显光电有限公司 | Gamma curve acquisition method and device for multi-segment display brightness and display equipment |
| CN111161676A (en) * | 2020-02-25 | 2020-05-15 | 云谷（固安）科技有限公司 | Processing equipment and processing method of display module and display module |
| CN111161676B (en) * | 2020-02-25 | 2022-04-15 | 云谷（固安）科技有限公司 | Processing equipment and processing method of display module and display module |
| CN111739457A (en) * | 2020-07-03 | 2020-10-02 | 昆山国显光电有限公司 | Gamma debugging system and gamma debugging method |
| CN111739457B (en) * | 2020-07-03 | 2022-04-12 | 昆山国显光电有限公司 | Gamma debugging system and gamma debugging method |
| CN112017578A (en) * | 2020-09-02 | 2020-12-01 | Tcl华星光电技术有限公司 | Display panel setting method and display panel |
| CN112017578B (en) * | 2020-09-02 | 2022-02-22 | Tcl华星光电技术有限公司 | Display panel setting method and display panel |
| CN112071264A (en) * | 2020-09-09 | 2020-12-11 | 北京集创北方科技股份有限公司 | Gamma correction method and device |
| WO2022198788A1 (en) * | 2021-03-23 | 2022-09-29 | Tcl华星光电技术有限公司 | Gamma correction method and device of display panel, and display device |
| CN113077746A (en) * | 2021-03-23 | 2021-07-06 | Tcl华星光电技术有限公司 | Gamma correction method and device for display panel |
| CN114170960A (en) * | 2021-12-07 | 2022-03-11 | 南京国兆光电科技有限公司 | Customized Gamma correction method for silicon-based OLED micro display screen |
| CN114170960B (en) * | 2021-12-07 | 2023-10-03 | 南京国兆光电科技有限公司 | Custom Gamma correction method for silicon-based OLED micro-display screen |
| CN114333675A (en) * | 2021-12-30 | 2022-04-12 | 昆山国显光电有限公司 | Display compensation method, display compensation device, display device and storage medium |
| CN114333675B (en) * | 2021-12-30 | 2023-06-27 | 昆山国显光电有限公司 | Display compensation method, device, display device and storage medium |
| CN114519987A (en) * | 2022-01-28 | 2022-05-20 | 广州朗国电子科技股份有限公司 | Gamma correction method, system and storage medium for display |
| CN114519987B (en) * | 2022-01-28 | 2023-10-20 | 广州朗国电子科技股份有限公司 | Gamma correction method, system and storage medium for display |
| CN115410511A (en) * | 2022-09-05 | 2022-11-29 | 信利光电股份有限公司 | Automatic Gamma correction method and device for display module |
| WO2024065382A1 (en) * | 2022-09-29 | 2024-04-04 | 京东方科技集团股份有限公司 | Display brightness adjusting method and adjusting device, and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105702215B (en) | 2018-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105702215A (en) | Gamma voltage correction method and device | |
| US10755627B2 (en) | Correction for localized phenomena in an image array | |
| CN102741910B (en) | For extracting the system and method for the correlation curve of organic luminescent device | |
| US10311807B2 (en) | Gamma correction system and method | |
| CN104064156B (en) | A kind of display floater gray scale correction method | |
| CN105702212B (en) | Organic light emitting display device and driving method thereof | |
| EP3343549A1 (en) | Active-matrix organic light emitting diode display device and luminance compensation method thereof | |
| CN102486912B (en) | System and method for thermal compensation in displayer | |
| CN102971781B (en) | Display device | |
| CN104361873A (en) | Method and device for adjusting display parameters and liquid crystal display system | |
| CN105575326A (en) | Method for calibrating brightness unevenness of OLED (Organic Light Emitting Diode) display panel | |
| CN109036326B (en) | Method and device for adjusting gamma curve of display panel | |
| CN104916259A (en) | Method of controlling brightness of display screen of medical display, device and medical display | |
| US20120206504A1 (en) | Compensation table generating system, display apparatus having brightness compensation table, and method of generating compensation table | |
| CN106981266A (en) | The optical compensation method of display device and display device | |
| CN110827751A (en) | Degradation compensation device and organic light emitting display device including the same | |
| CN109637475A (en) | The gamma-debugged method of display panel | |
| US20120092037A1 (en) | Method and device for testing a thin film transistor | |
| CN102203846A (en) | Electroluminescent display with initial nonuniformity compensation | |
| CN101685595A (en) | System and method for correcting gamma | |
| US20220198977A1 (en) | Optical compensation device, display device, and optical compensation method of display device | |
| US10943516B2 (en) | Systems and methods of utilizing output of display component for display temperature compensation | |
| CN106157904A (en) | Liquid crystal display and display auto-correction method thereof and device | |
| CN112002285B (en) | Method for determining and compensating efficiency degradation of organic light emitting device | |
| CA2490860A1 (en) | Real-time calibration scheduling method and algorithm for amoled displays |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |