CN110310611A - A kind of algorithm of novel efficient correction Gamma and chromaticity coordinates - Google Patents
A kind of algorithm of novel efficient correction Gamma and chromaticity coordinates Download PDFInfo
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- CN110310611A CN110310611A CN201810227167.XA CN201810227167A CN110310611A CN 110310611 A CN110310611 A CN 110310611A CN 201810227167 A CN201810227167 A CN 201810227167A CN 110310611 A CN110310611 A CN 110310611A
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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
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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Abstract
The present invention relates to the algorithms of novel efficient correction Gamma and chromaticity coordinates a kind of.Step S1, panel original optical data is acquired using optical instrument；Step S2, since preset gray scale, the offset of measured panel is calculated with panel original optical data obtained by step S1, panel is then input to and compensates, judge compensation effect, if consistent with effects of demand, then follow the steps S3, otherwise, compensate again；Step S3, all gray scale compensations are completed in the operation for repeating step S2, and non-measured point recycles interpolation extrapolation mode to calculate, to save hardware space.The method of the present invention can carry out the adjusting of Gamma and every rank chromaticity coordinates according to the different optical characteristics of panel itself, save production time and cost.
Description
Technical field
The present invention relates to the algorithms of novel efficient correction Gamma and chromaticity coordinates a kind of.
Background technique
Panel display technologies are more and more extensive in actual life application, with the development of technology, imitate to the display of panel
Fruit requires also increasingly harsher.It influences Display panel and is most importantly Gamma and colour temperature.
Due to, the feeling and brightness relationship of human eye more high than the sensitivity of high brightness to low-light level of human eye instinct
It can be approximately:
L=k*Xγ(L is brightness, and k is constant, and X is human eye feeling)
This characteristic relation is known as gamma curve, and panel need to follow this relationship, matching adapts to reach display effect most preferably
The γ value of human eye.Generally, panel factory needs to adjust one group of γ setting to be suitble to most of panel, but due to material and
The fluctuation of processing procedure, it may appear that the situation beyond predetermined dimension causes the loss of yield and the decline of quality.
It is equally the coloration for reflecting one of display characteristic, also will appear similar problems.
Volume production Gamma and chromaticity coordinates are corrected in the prior art, the primary light for collecting certain amount panel is usually used
It learns data (comprising Gamma and chromaticity coordinates) and establishes database, then by way of matching target, reach convergence Gamma and color is sat
Target purpose.
Existing Gamma adjustment and, chromaticity coordinates adjustment mode is as shown in Figure 1, 2.The way demand has certain panel primary light
Data (comprising Gamma and chromaticity coordinates) are learned to support as data, if leading portion changes in material, need to be supplemented original optical data into
Come, it is time-consuming and laborious.And operation process time-consuming is more long, is not suitable for producing line operation.
The present invention proposes a kind of algorithm of the chromaticity coordinates of efficient on-line correction gamma and each grayscale point.
Summary of the invention
The purpose of the present invention is to provide the algorithms of novel efficient correction Gamma and chromaticity coordinates a kind of, can be according to panel
Itself different optical characteristics carries out the adjusting of Gamma and every rank chromaticity coordinates, saves production time and cost.
To achieve the above object, the technical scheme is that the calculation of a kind of correction of novel efficient Gamma and chromaticity coordinates
Method includes the following steps,
Step S1, panel original optical data is acquired using optical instrument；
Step S2, since preset gray scale, the compensation of measured panel is calculated with panel original optical data obtained by step S1
Value, is then input to panel and compensates, judge compensation effect, if consistent with effects of demand, then follow the steps S3, otherwise, weight
New compensation；
Step S3, all gray scale compensations are completed in the operation for repeating step S2, and non-measured point recycles interpolation extrapolation mode to calculate
Come, to save hardware space.
In an embodiment of the present invention, the step S1 the specific implementation process is as follows:
Step S11, using colorimeter, the R picture of the several orders of Display panel is measured, R-curve is obtained；
Step S12, the R-curve that step S11 is obtained is compared with target R-curve, is obtained and target R-curve iso brightness value
When measured panel offset, i.e. difference gray number δ Rdata；
Step S13, difference gray number δ R is utilizeddataAfter being compensated to measured panel so that the R-curve of measured panel with
Target R-curve is identical；
Step S14, G picture and B picture are similarly operated.
In an embodiment of the present invention, the coloration is calculated as CA310 colorimeter.
In an embodiment of the present invention, in the step S2, preset gray scale, respectively W25, W48, W60, W128, W192.
Compared to the prior art, the invention has the following advantages: the method for the present invention can not share the same light according to panel itself
The adjusting that characteristic carries out Gamma and every rank chromaticity coordinates is learned, production time and cost are saved；The display effect of panel is promoted simultaneously,
Improve display difference, restrains panel optical specification, improve the utilization rate of each former material of display module；And provide front end of line wave
Dynamic early warning promotes processing procedure and fluctuates control ability.
Detailed description of the invention
Fig. 1 is existing Gamma adjustment mode schematic diagram.
Fig. 2 is existing chromaticity coordinates adjustment mode schematic diagram.
Fig. 3 is the system schematic of present invention measurement panel.
Fig. 4 is present invention acquisition panel original optical data schematic diagram.
Fig. 5 is the compensation schematic diagram that the present invention presets 5 grayscale to panel.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
The algorithm of a kind of correction of novel efficient Gamma and chromaticity coordinates of the invention, include the following steps,
Step S1, panel original optical data is acquired using optical instrument；
Step S2, since preset gray scale, the compensation of measured panel is calculated with panel original optical data obtained by step S1
Value, is then input to panel and compensates, judge compensation effect, if consistent with effects of demand, then follow the steps S3, otherwise, weight
New compensation；
Step S3, all gray scale compensations are completed in the operation for repeating step S2, and non-measured point recycles interpolation extrapolation mode to calculate
Come, to save hardware space.
The step S1 the specific implementation process is as follows:
Step S11, using colorimeter, the R picture of the several orders of Display panel is measured, R-curve is obtained；
Step S12, the R-curve that step S11 is obtained is compared with target R-curve, is obtained and target R-curve iso brightness value
When measured panel offset, i.e. difference gray number δ Rdata；
Step S13, difference gray number δ R is utilizeddataAfter being compensated to measured panel so that the R-curve of measured panel with
Target R-curve is identical；
Step S14, G picture and B picture are similarly operated.
As shown in figure 3, the coloration is calculated as CA310 colorimeter.
In the step S2, preset gray scale, respectively W25, W48, W60, W128, W192.
As in Figure 3-5, of the invention novel efficient correction Gamma and chromaticity coordinates algorithm (by taking 5 grayscale as an example:
W25/W48/W60/W128/W192), it is implemented as follows:
Step1. initial optical data are acquired using optical instrument.
1) it can be the colorimeter with CA310 etc., measure the R picture of several orders of Display panel, the data obtained curve
It is as shown in Figure 4:
2) it is compared with target R-curve, the input value of surveyed panel when finding out equal with the brightness of target R；
3) after compensating using δ Rdata to surveyed panel, R-curve identical with target is obtained；
4) in this way, repeating similarly to operate G picture and B picture.
Step2:
1) panel lights W25 grayscale (assuming that starting with this grayscale), and measures, come by the resulting initial optical data of Step1 in terms of
The input value of measured panel is calculated, as shown in Figure 5；
2) other grayscale repeat above step, and non-measured point recycles interpolation extrapolation mode to calculate, to save hardware space.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (4)
1. a kind of algorithm of novel efficient correction Gamma and chromaticity coordinates, which is characterized in that include the following steps,
Step S1, panel original optical data is acquired using optical instrument；
Step S2, since preset gray scale, the compensation of measured panel is calculated with panel original optical data obtained by step S1
Value, is then input to panel and compensates, judge compensation effect, if consistent with effects of demand, then follow the steps S3, otherwise, weight
New compensation；
Step S3, all gray scale compensations are completed in the operation for repeating step S2, and non-measured point recycles interpolation extrapolation mode to calculate
Come, to save hardware space.
2. the algorithm of a kind of novel efficient correction Gamma and chromaticity coordinates according to claim 1, which is characterized in that institute
State step S1 the specific implementation process is as follows:
Step S11, using colorimeter, the R picture of the several orders of Display panel is measured, R-curve is obtained；
Step S12, the R-curve that step S11 is obtained is compared with target R-curve, is obtained and target R-curve iso brightness value
When measured panel offset, i.e. difference gray number δ Rdata；
Step S13, difference gray number δ R is utilizeddataAfter being compensated to measured panel so that the R-curve of measured panel with
Target R-curve is identical；
Step S14, G picture and B picture are similarly operated.
3. the algorithm of a kind of novel efficient correction Gamma and chromaticity coordinates according to claim 2, which is characterized in that institute
It states coloration and is calculated as CA310 colorimeter.
4. the algorithm of a kind of novel efficient correction Gamma and chromaticity coordinates according to claim 2, which is characterized in that institute
It states in step S2, preset gray scale, respectively W25, W48, W60, W128, W192.
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| CN201810227167.XA CN110310611A (en) | 2018-03-20 | 2018-03-20 | A kind of algorithm of novel efficient correction Gamma and chromaticity coordinates |
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| CN201810227167.XA CN110310611A (en) | 2018-03-20 | 2018-03-20 | A kind of algorithm of novel efficient correction Gamma and chromaticity coordinates |
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| CN1845232A (en) * | 2005-04-08 | 2006-10-11 | 浙江大学 | Automatic measurement and correction method and system for LCD GAMMA curve and color temperature |
| US20080180375A1 (en) * | 2007-01-26 | 2008-07-31 | Innocom Technology (Shenzhen) Co., Ltd. | Method for establishing gamma correction table for liquid crystal display |
| CN101364402A (en) * | 2007-08-06 | 2009-02-11 | 东元电机股份有限公司 | Color signal processing method and apparatus thereof |
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