CN106531065B - A kind of parallel regulating system of one-to-many gamma curve and method - Google Patents
A kind of parallel regulating system of one-to-many gamma curve and method Download PDFInfo
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- CN106531065B CN106531065B CN201610996726.4A CN201610996726A CN106531065B CN 106531065 B CN106531065 B CN 106531065B CN 201610996726 A CN201610996726 A CN 201610996726A CN 106531065 B CN106531065 B CN 106531065B
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of parallel regulating systems of one-to-many gamma curve and method, the system to specifically include that main controller, and the adjusting for realizing display module controls；It pops one's head in correspondingly with more display modules, for acquiring the brightness value and chromaticity coordinates value of display module described in corresponding channel；Luminance test module is handled for receiving to handle the brightness value and be transmitted in main controller；Wherein, the main controller includes the first memory module and the second memory module, wherein first memory module is used to store the Configuration Values to be regulated of the display module in a wherein channel, second memory module is used to store the display module and completes the regulated value after adjusting according to the Configuration Values, completes parallel adjust so that the display module of rest channels is read.According to parallel regulating system and method that the present invention realizes, has detection accuracy height, detection speed fast, be able to solve and bring time and human cost problem due to repeatedly adjusting.
Description
Technical field
The invention belongs to display module gamma to adjust field, and it is bent to be related to a kind of one-to-many Gamma based on more OLED mould groups
The parallel regulating system of line and method.
Background technique
It is aobvious that Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) is also known as organic electric laser
Show, organic luminous semiconductor (Organic Electroluminesence Display, OED), OLED display technology has certainly
Shine, wide viewing angle, almost infinite high contrast, compared with low power consumption, high reaction speed the advantages that.
OLED display technology is widely used in mobile phone, DV, DVD player, personal digital assistant (PDA), notebook
Computer, automobile audio and TV, OLED display is very thin very light, because it does not use backlight, and it has and is up to 160 degree
Widescreen visual angle, voltage be two to ten volts.
OLED has to pass through gamma correction when dispatching from the factory, Gamma is derived from the response curve of CRT (display/television set), mark
Know the non-linear relation of its brightness and input voltage, gamma correction refers to change gamma value to match the intermediate ash of liquid crystal module
Degree meets gamma exponential curve so that the gray-scale intensity curve and human eye of output feel consistent.
The production cost of OLED is higher at present, and yields is low, and current existing Gamma adjusting method mainly uses flowing water
The method of line independent test, this kind of adjusting method can not go the comparison effect for embodying a variety of gamma curves of multiple screens while adjusting,
It is unfavorable for research tester to go for effective observation of multiple screens under different conditions, so that the optimum state of screen is picked out,
Significant test result is fed back to provide for further improvement research and development, and according to the stream of OLED mould group in the prior art
The test method of line type needs staff repeatedly to adjust and compares repeatedly, or increases multiple devices debugging and increase cost, because
This urgently develops the system and method adjusted while one kind of multiple screens a variety of gamma curves.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of based on the parallel of more OLED mould groups
Regulating system and method.
The invention proposes a kind of one-to-many parallel regulating systems of gamma, which is characterized in that the system is mainly wrapped
It includes:
Host computer, for realizing the configuration of the control test parameter, gamma parameter of multiple display modules, and in calculating
Between grayscale theory brightness value and realize register value adjust；
Picture signal generator, for providing figure, power supply and timing sequence test signal for each display module；With
And
Pop one's head in correspondingly with each display module, for acquire the corresponding display module brightness value and
Chromaticity coordinates value；
Luminance test module, for handling the brightness value and chromaticity coordinates value and feeding back to host computer；
Wherein, the host computer includes the first memory module and the second memory module, and first memory module is for depositing
Store up display module Configuration Values to be regulated, second memory module for store the display module according to
The regulated value after adjusting is completed according to the Configuration Values, realizes parallel adjust for being allocated to remaining described display module.
Further, described image signal generator includes that power supply and timing sequence test letter are provided for each display module
Number power module, and for each display module provide image test signal signal output and processing module.
Further, the luminance test module is set on one piece of circuit board, and including with it is the multiple probe one
One corresponding channel.
Further, described image signal generator further includes central processing module, for the power module and institute
State signal output and processing modules implement master control.
The invention also discloses a kind of one-to-many parallel adjusting methods of gamma, which is characterized in that this method is mainly wrapped
Include following steps:
Start the adjusting that first thread completes first passage display module, completes to obtain highest gray-scale intensity, most after adjusting
Low gray-scale intensity and adjusting register value storage；
The above-mentioned storage value of remaining thread dispatching carries out the parallel adjusting of rest channels.
Further, the adjusting that the first thread completes the first passage display module has further comprised the steps of: before
At the parameter configuration of the first passage display module.
Further, after other threads are completed to adjust, inspection is adjusted, the adjusting inspection includes: to draw
Current Gamma adjusts brightness curve and compares with standard luminosity curve.
Further, the step of gamma that each channel is completed is adjusted is as follows:
Configuration obtains highest gray-scale intensity, minimum gray scale theory brightness value；It determines each to be tested in the display module
The brightness value L v of point and the target value of chromaticity coordinates x, y and values X, Y, Z；
According to the highest gray-scale intensity values and minimum gray scale brightness value, the theoretical brightness value of the intermediate grayscale is calculated simultaneously
It is adjusted.
Further, the highest gray-scale intensity and the regulating step of minimum gray scale brightness are as follows:
Obtain R, G, the B-register initial value of highest grayscale and minimum gray scale；
The brightness for acquiring highest grayscale and minimum gray scale under the display module current state of current TCH test channel is current
Value；
Adjust R, G simultaneously, B-register value falls in the brightness current value of highest grayscale in the error range of target value；
The brightness current value of highest grayscale and minimum gray scale is identified as to the brightness value and minimum gray scale of highest grayscale
It is worth brightness.
Further, the calculation method of the theoretical brightness value are as follows: (n/ highest grayscale) (highest grayscale is bright by gamma index *
Degree-minimum gray scale brightness)+minimum gray scale brightness, n is the natural number within 0 to highest grayscale.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have following beneficial
Effect:
(1) regulating system according to the invention and adjusting method are utilized the control method of multithreading, and combine OLED
The adjustment parameter of mould group transfers method, be put forward for the first time it is a kind of be simple and efficient one-to-many, a variety of gammas of muti-piece screen are same
When the system and method that adjust；
(2) regulating system according to the invention and adjusting method have detection accuracy height, detection speed fast, can overcome
It is artificial one-to-one, it repeatedly adjusts and brings time and human cost, and solution is not at all possible while comparing the drawbacks of debugging effect is brought；
(3) regulating system according to the invention and adjusting method can realize speed more than directlying adopt the adjusting of multi-to-multi
Fastly, error is smaller, and precision is higher, saves cost bring advantage, provides before manufacture for research staff, studies screen and test
Verifying, beforehand research etc. provide strong support, and greatly reduce exploitation amount.
Detailed description of the invention
Fig. 1 is the module composed structure block diagram for the parallel regulating system realized according to the present invention；
Fig. 2 is the module composed structure block diagram of one of embodiment for the parallel regulating system realized according to the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that specific example described herein is only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
It should be noted that adjusting method involved in the present invention can be applied particularly to OLED, liquid crystal display die set,
In this embodiment, mainly illustrated with the adjusting of OLED mould group.
First as shown in Figure 1, the entire block diagram of multiple parallel processing system according to the invention, can be shown, mainly by its structure
Including following system:
Host computer, for realizing the configuration of the control test parameter, gamma parameter of multiple display modules, and in calculating
Between grayscale theory brightness value and realize register value adjust；
Picture signal generator, for providing figure, power supply and timing sequence test signal for each display module；With
And
It pops one's head in correspondingly with each display module, for acquiring the brightness value and chromaticity coordinates of corresponding display module
Value；
Luminance test module, for handling brightness value and chromaticity coordinates value and feeding back to host computer.
Picture signal generator include the power module of power supply and timing sequence test signal is provided for each display module, and
The signal output and processing module of image test signal are provided for each display module.
And above system further includes testing probe correspondingly with more test solution crystal modules, above-mentioned probe difference
The signal for acquiring corresponding test solution crystal module is transmitted to luminance test module, transmits after luminance test resume module
The generation of further signal processing and feedback signal is carried out to main controller.
Picture signal generator further includes central processing module, for the power module and the signal to be exported and located
It manages module and realizes master control.
What wherein main controller realized the output of power module and signal and processing module by network interface interface module interacts pipe
Reason, is provided with Ports Serial Communication Ports between luminance test device and host computer.
Wherein main controller is bound by ID number, and the configuration of multichannel liquid crystal module test parameter and multichannel are realized in multiwindow configuration
Gamma parameter configuration, wherein power module band multiple signals export, and signal output and processing module band multiple signals export.
Developing master computer software is supported: upper computer software supports independent multiwindow configuration, each window and the binding of the channel ID, each
The channel ID correspondence adjusts LCD module under test all the way, per the configuration liquid crystal module test parameter of window all the way and gamma parameter, adjusts
When each paths start separate threads, do not interfere with each other.There are general character register values and brightness to be deposited by shared drive for multichannel screen
It puts, each separate threads can access the register value and brightness value of shared drive storage simultaneously.
In the device of the invention, adjusting while a variety of gammas of muti-piece screen are realized according to following set-up mode,
It is provided with two pieces of storage regions in main controller, the first storage region is privately owned storage region, and channel is from the first memory block all the way
The parameter of read test in domain, and its register value and brightness value are deposited in second after the test for completing the thread and deposited
Storage area domain, the storage region are shared region, and the test of other paths reads register value from second storage region
And brightness value, to carry out the test of other threads in channel using the value.
Further, the power module band multiple signals in the present invention export, and precision has extremely low electricity in microampere rank
The interference of source ripple, electromagnetic interference is extremely low per signal errors all the way, and the use of corresponding power module can make defeated per power supply signal all the way
It is very close out.
Gamma is adjusted, and requires high, the shake of power supply ripple to circuit and circuit ambient, power supply line loss causes brightness smart
Degree difference is likely to cause to accord a difference, each channel is exported with same signal, guarantees to adjust accuracy and can compare ginseng
According to property.
Further, signal output and processing module band multiple signals export, extremely low per signal output error all the way, can have
Effect guarantees the integrality of signal output, each channel is exported with same signal, guarantees precision and comparison referring to property.
Further, according in the device of the invention realized, luminance test device band multichannel probe, luminance test device is adopted
With a circuit board, the error of photoelectric conversion can be effectively reduced, the acquisition brightness of each channel is guarantee pair under same reference
Than referring to property.
Embodiment one
According to one of embodiment that the present invention realizes, mainly shielded in the present embodiment one with 5 pieces, 5 kinds of gamma songs
Relevant explanation is carried out for line.
Wherein, as shown in Fig. 2, it includes host computer 1, Ports Serial Communication Ports 2, network interface interface module 3, central processing module
4, signal output and processing module 5, memory 6 and power module 7, LCD module under test 8, luminance test device 9, optic probe
10。
Wherein, the test command communication end of host computer 1 connects the test of central processing module 4 by network interface interface module 3
Command communication end, the test signal communication end connection signal output of central processing module 4 and the test signal communication of processing module 5
End, the storing data communication ends of central processing module 4 connect memory 6, and the power control signal output end of central processing module 4 connects
The control terminal of power module 7 is connect, the output end of power module 7 is used to power to LCD module under test 8, and the test of host computer 1 refers to
Communication ends are enabled to connect luminance test device 9 by Ports Serial Communication Ports 2, luminance test device is separately connected 5 optic probes 10.
Wherein, the main working process of each module is as follows:
Host computer 1 runs module operation software；
Ports Serial Communication Ports 2, serial ports test instruction path；
Network interface interface module 3, network interface test instruction path；
Central processing module 4, operation need power module to mould group, and signaling module provides output；
Signal output and processing module 5, export module signal；
Memory 6, central processing module program operative component；
Power module 7 exports mould group power supply；
LCD module under test 8, liquid crystal module producer module device；
Luminance test device 9, CA310；
Optic probe 10 acquires optical parameter, and above-mentioned optical parameter is mainly brightness value and chromaticity coordinates value.
Wherein, according to above-mentioned device, the most crucial step that is executed in the present invention are as follows: starting first thread completes first
The adjusting of channel OLED mould group is completed to obtain highest gray-scale intensity, minimum gray scale brightness after adjusting and adjust register value to deposit
Storage；
Other above-mentioned storage values of thread dispatching are adjusted parallel, so as to complete the parallel adjusting of more OLED mould groups.
More specifically, mainly include following work step:
Step 1: after central processing module 4 starts, central processing module 4 guides system and application program from memory 6；
Step 2: luminance test device 9 carries out 0 point correction first, is then arranged again to brightness (LV), X chromaticity coordinates (x), Y
Chromaticity coordinates (y) state；
Step 3: luminance test device 9 connects 5 optic probe stabilizations and is placed on 5 LCD module under tests, does not have as far as possible
There is ambient light interference；
Step 4: the module operation software in operation host computer 1 carries out liquid crystal module test ginseng in module operation software
Number configuration and the configuration of gamma parameter；
5 groups of step 5:gamma parameter configuration (IC type, gamma index, x chromaticity coordinates error, y chromaticity coordinates error,
Highest grayscale, highest grayscale adjust brightness, shaping modes (RGB/W), brightness judgement, chromaticity coordinates x, y judgement)；
Gamma2.0 to gamma2.6 parameter can be respectively configured in corresponding 5 LCD module under tests in 6:5 channel of step；
Step 7: above-mentioned liquid crystal module test with parameter configuration it is good after save, enter back into host computer liquid crystal module test circle
Face；
Step 8: host computer passes through network interface interface module 3, central processing module 4, signal output and processing module 5 and power supply
Module 7 issues various test communication instructions to LCD module under test 8, completes the signal output and power supply output of liquid crystal module；
Step 9: clicking 1 button of host computer and enter gamma regulatory function；
Step 10: carrying out artificial triggering first or automation triggers one of channel and deposits from the first of host computer 1
Read test parameter completes the test in a wherein channel in storage area domain；After corresponding test is completed in above-mentioned channel, by gamma
Register value and brightness value after the completion of adjusting deposit in the second storage region in host computer 1；
Step 11: host computer 1 is parallel by network interface interface module 3, central processing module 4, signal output and processing module 5
Various test communication instructions are issued to 5 channel LCD module under tests, wherein after receiving above-mentioned test communication instruction, respectively
A channel parallel reads the Configuration Values of storage in the second storage region into host computer 1, thus other each channel parallels are completed
The R of liquid crystal module, G, the output of B grayscale and the gamma of grayscale are adjusted；
Step 12: all grayscale are adjusted by interface configurations and are completed by host computer 1, and liquid crystal module gamma, which is adjusted, at this time completes；
Step 13: host computer 1 sends gamma by network interface interface module 3 and adjusts inspection, completes the R of liquid crystal module, G, B
All grayscale show and obtain by serial ports from luminance test device 9 brightness value of all grayscale of current LCD module under test 8
And chromaticity coordinates value；
The LCD module under test in 14:5 channel of step presses gamma2.0 to the gamma2.6 curve adjustment of each configuration respectively
It completes, observation either record regulating effect.
Wherein, the gamma adjustment process that each channel is completed is as follows:
It is wherein as follows to the technical term in above-mentioned adjusting:
Gamma is adjusted: will actually correspond to money driver IC oled screen, each grayscale presses gamma exponential equation
Brightness value adjust, according to the datasheet of driving IC, it is known that the corresponding grayscale value of each gamma and gamma register value.
Gamma index meets γ in 1.8~2.6 sections.
MaxGrayLv: highest gray-scale intensity
MinGrayLv: minimum gray scale brightness
Gamma basic configuration
Gamma index is configured, meets γ in 2.0~2.6 sections.Different Gamma indexes, screen display after the completion of adjusting
Effect is consistent with setting value；
Gamma shaping modes are configured, W adjusts (white balance adjusting) or RGB is adjusted；
The processing of configuration register initial value, after choosing, for identical Gamma test file name, each Gamma adjusts successful
Data can be recorded in register initial value by processing.
Gamma regulating allocation
Chromaticity coordinates x, y target value are configured, Gamma adjusting is adjusted using the value as target value, and after the completion of adjusting, readback is tied up a little
Chromaticity coordinates need to be in the value error range；The error range of chromaticity coordinates x, y target value is ± 0.005.
Gamma time-out time is configured, regulating time maximum value when not finding suitable register value in range, indicates
Gamma adjusts failure.
White balance adjusting configuration
It is enabled to configure white balance, does not enable, does not then enter white balance adjusting；General mode then adjusts a white balance；It is more
Secondary white balance mode then adjusts multiple white balance.
Configure WB brightness, i.e. highest goal brightness, adjust white balance after judge W255 brightness Lv whether target value mistake
In poor range, the error range of brightness Lv target value is ± 2%.
OTP configuration
The IC type of OLED mould group 5 is selected, whether configuration chooses OTP continuation.After choosing, bullet frame when adjusting NG, if after
It is continuous to carry out OTP burning, direct burning when adjusting OK.
IC configuration
According to IC service manual, determine that the IC of OLED mould group 5 supported ties up points and register address, according to tying up a little by height
To low sequence, configuration is respectively tied up a little and corresponding register address.
After the completion of above-mentioned configuration, host computer 1 parses Gamma complete configuration, does corresponding initialization, automatic to carry out
Gamma is adjusted:
(1) it adjusts white balance and determines highest gray-scale intensity MaxGrayLv and minimum gray scale brightness MinGrayLv.
1-1) host computer 1 obtains R, G, the B-register initial value of highest grayscale and minimum gray scale, and controls the current survey of write-in
The corresponding register address of IC of the OLED mould group pinged is to host computer 1；
The brightness for 1-2) acquiring highest grayscale and minimum gray scale under the OLED mould group current state of current TCH test channel is current
Value；
1-3) adjust R, G simultaneously, B-register value makes the brightness current value of highest grayscale fall in the error range of target value
It is interior；
The brightness current value of highest grayscale and minimum gray scale 1-4) is identified as to the brightness value of highest grayscale
MaxGrayLv and minimum gray scale value brightness MinGrayLv.
(2) according to highest gray-scale intensity values MaxGrayLv and minimum gray scale brightness value MinGrayLv, the reason tied up a little is calculated
By brightness value L nTheoryLv, determine that each target ties up the target of brightness value L v and chromaticity coordinates x, y and values X, Y, Z a little
Value.
Target, which is tied up, to be determined according to the OLED mould group of TCH test channel, can find OLED mould group 5 according to IC service manual
IC support each to tie up point, register address, highest grayscale W255 and minimum gray scale WO be to fix to tie up a little, other, which are tied up, is a little
Between tie up a little, indicated with n, n be 0~highest grayscale within natural number, if highest grayscale be 255, then n be 0~255 in it is any from
So number.
Calculate the formula that target ties up theoretical brightness value L nTheoryLv a little are as follows:
LnTheoryLv=(n/MaxGray) GammaExponent* (MaxGrayLv-MinGrayLv)+MinGrayLv
Wherein, LnTheoryLv is the theoretical brightness value that target ties up point n；MaxGray is highest grayscale；
GammaExponent is Gamma index；MaxGrayLv is the corresponding brightness of highest grayscale；MinGrayLv is minimum gray scale pair
The brightness answered.
If Gamma index is 2.2, MaxGray 255, then above formula can be write:
LnTheoryLv=(n/255) 2.2* (MaxGrayLv-MinGrayLv)+MinGrayLv
(3) after the completion of highest gray-scale intensity and minimum gray scale brightness regulation, the theory that can calculate all intermediate grayscale is bright
Angle value.
When adjusting intermediate grayscale gamma, brightness is adjusted by theoretical brightness and approaches optimal value.It finally can be completed all
Grayscale gamma is adjusted.
(4) adjusting of oneself configuration gamma is completed in each last channel.
" normalization " brightness value
Brightness value under each grayscale is subjected to " normalization " processing, " normalization " formula under current gray is as follows:
L=(the most dark brightness value of the brightness value-of current gray)/(the most dark brightness value of most bright brightness value -).
In short, starting single thread first completes a channel according to the system and method adjusted parallel that the present invention realizes
Highest, minimum gray scale brightness regulation.It adjusts highest and lowest gamma register and reaches highest, minimum gray scale theory brightness value.
By highest, minimum gamma register, highest, minimum gamma register value and highest, minimum gray scale brightness storage system is shared
Memory.
Since using consistent, the highest with money screen characteristics, minimum gamma register configuration and brightness are one on each channel
It causes, only gamma index variation, causes intermediate gray-scale intensity to change, need to adjust intermediate gray-scale intensity.
Start the thread of rest channels, per thread by shared drive accesses publicly-owned resource and by highest, minimum gray scale
The write-in of gamma register value.
More highests, minimum gray scale brightness regulation are completed.
The thread in each channel starts to complete intermediate grayscale gamma adjusting in privately owned area.Intermediate grayscale is calculated according to formula
Gamma theory brightness adjusts intermediate grayscale gamma register, its brightness is made to reach requirement.
In short, saving adjusting highest, the step of minimum gray scale compared to multi-to-multi according to the adjusting method that the present invention realizes
Suddenly, optimizing regulation efficiency, the time is faster.And can be synchronized in thread adjusting, each channel, which is adjusted, acts in agreement, and saves ring
The interference of border light.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of parallel regulating system of one-to-many gamma, which is characterized in that the system specifically includes that
Host computer for realizing the configuration of the control test parameter, gamma parameter of multiple display modules, and calculates intermediate ash
Rank theory brightness value simultaneously realizes that register value is adjusted；
Picture signal generator, for providing figure, power supply and timing sequence test signal for each display module；And
It pops one's head in correspondingly with each display module, the brightness value and color for acquiring the corresponding display module are sat
Scale value；
Luminance test module, for handling the brightness value and chromaticity coordinates value and feeding back to host computer；
Wherein, the host computer includes the first memory module and the second memory module, and first memory module is for storing one
A display module Configuration Values to be regulated, second memory module is for storing this display module according to institute
It states Configuration Values and completes the regulated value after adjusting, realize parallel adjust for being allocated to remaining described display module.
2. the one-to-many parallel regulating system of gamma as described in claim 1, which is characterized in that described image signal hair
Raw device includes that the power module of power supply and timing sequence test signal is provided for each display module, and is each display
Mould group provides the signal output and processing module of image test signal.
3. the one-to-many parallel regulating system of gamma as claimed in claim 1 or 2, which is characterized in that the luminance test
Module is set on one piece of circuit board, and including with the one-to-one channel of the multiple probe.
4. the one-to-many parallel regulating system of gamma as claimed in claim 2, which is characterized in that described image signal hair
Raw device further includes central processing module, for the power module and signal output and processing modules implement master control.
5. a kind of parallel adjusting method of one-to-many gamma, which is characterized in that this method mainly includes the following steps:
Start the adjusting that first thread completes first passage display module, completes to obtain highest gray-scale intensity, most low ash after adjusting
Rank brightness and adjusting register value storage；
The above-mentioned storage value of remaining thread dispatching carries out the parallel adjusting of rest channels, and the first thread completes the first passage
The parameter configuration for completing the first passage display module is further comprised the steps of: before the adjusting of display module.
6. the one-to-many parallel adjusting method of gamma as claimed in claim 5, which is characterized in that in remaining described thread
It completes after adjusting, inspection is adjusted, the adjusting inspection includes: to draw current Gamma to adjust brightness curve and and standard
Brightness curve compares.
7. the one-to-many parallel adjusting method of gamma as described in claim 5 or 6, which is characterized in that each channel is complete
At gamma adjust the step of it is as follows:
Configuration obtains highest gray-scale intensity, minimum gray scale theory brightness value；Determine each pilot to be measured in the display module
The target value of brightness value L v and chromaticity coordinates x, y and values X, Y, Z；
According to the highest gray-scale intensity values and minimum gray scale brightness value, calculates the theoretical brightness value of intermediate grayscale and adjusted
Section.
8. the one-to-many parallel adjusting method of gamma as claimed in claim 7, which is characterized in that the highest grayscale is bright
Degree and the regulating step of minimum gray scale brightness are as follows:
Obtain R, G, the B-register initial value of highest grayscale and minimum gray scale；
Acquire the brightness current value of highest grayscale and minimum gray scale under the display module current state of current TCH test channel；
Adjust R, G simultaneously, B-register value falls in the brightness current value of highest grayscale in the error range of target value；
By the brightness current value of highest grayscale and minimum gray scale be identified as highest grayscale brightness value and minimum gray scale value it is bright
Degree.
9. the one-to-many parallel adjusting method of gamma as claimed in claim 8, which is characterized in that the theory brightness value
Calculation method are as follows: (n/ highest grayscale) gamma index * (highest gray-scale intensity-minimum gray scale brightness)+minimum gray scale brightness, n
For the natural number within 0 to highest grayscale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610996726.4A CN106531065B (en) | 2016-11-11 | 2016-11-11 | A kind of parallel regulating system of one-to-many gamma curve and method |
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| CN108428430B (en) * | 2018-03-06 | 2020-01-07 | 武汉精测电子集团股份有限公司 | Multipath gamma adjusting method and device |
| 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 |
| CN116741116B (en) * | 2023-06-15 | 2024-01-02 | 北京青云创新科技发展有限公司 | Automatic calibration system, method, device, equipment and medium for display brightness linearity |
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| CN102930850B (en) * | 2012-11-16 | 2015-07-15 | Tcl显示科技（惠州）有限公司 | GAMMA curve adjustment method and GAMMA curve adjustment system |
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