CN101211035B - LCD display gamma correction system and method - Google Patents
LCD display gamma correction system and method Download PDFInfo
- Publication number
- CN101211035B CN101211035B CN200610064633A CN200610064633A CN101211035B CN 101211035 B CN101211035 B CN 101211035B CN 200610064633 A CN200610064633 A CN 200610064633A CN 200610064633 A CN200610064633 A CN 200610064633A CN 101211035 B CN101211035 B CN 101211035B
- Authority
- CN
- China
- Prior art keywords
- lcd
- gamma
- correction
- micro
- control unit
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a gamma correction system and a method for LCDs. The gamma correction system consists of an LCD to be detected, a photoreceptor, and a microcontrol unit. The LCD to be detected displays each gray-stage picture according to parameter data and gray-stage voltage which are corresponding to a standard gamma curve which is stored therein. The photoreceptor senses and detects the actual display luminance of gray-staged pictures displayed by the LCD to be detected and transfers the actual display luminance into a voltage signal. The microcontrol unit compares the voltage signal which stands for actual display data with the parameter data corresponding to the standard gamma curve and adjusts the gray-stage voltage of the LCD to be detected according to the result of the comparison. The gamma correction system and the method for LCDs can realize automation of gamma correction.
Description
Technical field
The present invention relates to a kind of liquid crystal display (LCD) gamma-correction system and bearing calibration.
Background technology
Along with the widespread use of LCD, people are also more and more higher to the requirement of its display quality.For improving the picture display quality of LCD, gamma correction is widely used.
At present, LCD is to utilize power function y=Ax
γ(A is that maximum brightness value, the γ of liquid crystal display displays represents to set gamma value, x represents that GTG, y represent the brightness of image under this GTG) generates the standard gamma curve.Each GTG correspondence is got a bit on this standard gamma curve, thus will and all GTG corresponding point brightness of image and the corresponding relation between GTG that are comprised be stored in the gamma register.When this LCD is carried out gamma correction, LCD will be selected display brightness automatically according to the grey menu of being imported in this gamma register.Usually, industry generally acknowledges that the LCD gamma value of the most suitable human eye identification is 2.2.
But, the standard gamma curve that utilizes this power function to generate is a desirable curve, owing to be subjected to the influence of LCD inner structure, there is a certain distance in actual displayed brightness and the standard gamma curve display brightness that set of LCD under each GTG.Therefore, reach the effect that is consistent with the standard gamma curve approximation, often need LCD is carried out gamma correction once more for making display effect.
Seeing also Fig. 1, is a kind of process flow diagram of prior art liquid crystal display (LCD) gamma-correction method.This liquid crystal display (LCD) gamma-correction method comprises following concrete steps:
Step S1: utilize a flying-spot video generator to produce a grey menu to this LCD to be measured;
Step S2: utilize an optical measuring instrument to measure the display brightness of the shown grey menu of this LCD to be measured;
Step S3: write down this display brightness and corresponding GTG and gray scale voltage;
Step S4: repeat above-mentioned steps, write down this LCD to be measured pairing display brightness and gray scale voltage under whole GTGs, thereby generate a gamma table or a gamma curve;
Step S5: gamma table or gamma curve that gamma table that the comparison actual amount records or gamma curve and standard gamma curve generate judge whether to need to regulate gray scale voltage.
After gamma table or gamma curve that this actual amount of generation records, operating personnel compare one by one intrinsic brilliance whether exceed standard gamma curve or gamma table the normal brightness under the corresponding GTG, if deviation exceeds the error range that this normal brightness sets, the gray scale voltage of then corresponding this GTG correspondence of adjusting, till the measured intrinsic brilliance of this optical measuring instrument is near this normal brightness, then next GTG is carried out gamma correction; Otherwise,, then directly next GTG is carried out gamma correction if intrinsic brilliance does not exceed the error range of standard gamma curve or gamma table institute corresponding brightness.
Yet, because when utilizing above-mentioned liquid crystal display (LCD) gamma-correction method to carry out gamma correction, need manual record and compare intrinsic brilliance and the pairing normal brightness of standard gamma curve that this optical measuring instrument measures, realize whole GTGs are carried out gamma correction, need cost plenty of time and manpower, cause production cost higher.
Summary of the invention
In order to solve the problem that prior art liquid crystal display (LCD) gamma-correction system need manually carry out gamma correction, be necessary to provide a kind of liquid crystal display (LCD) gamma-correction system that can carry out gamma correction automatically.
In addition, need manually carry out the problem of gamma correction, also be necessary to provide a kind of liquid crystal display (LCD) gamma-correction method that can carry out gamma correction automatically in order to solve prior art liquid crystal display (LCD) gamma-correction method.
A kind of liquid crystal display (LCD) gamma-correction system, it comprises a LCD to be measured, a photoreceptor and a micro-control unit.This LCD to be measured shows each grey menu according to the pairing parameter information of standard gamma curve and the gray scale voltage of storage inside.The actual displayed brightness of the shown grey menu of this LCD to be measured of this photoreceptor sensing, and this actual displayed brightness is converted into voltage signal.This micro-control unit relatively should be represented the voltage signal and the pairing parameter information of this standard gamma curve of actual displayed brightness, and regulated the gray scale voltage of this LCD to be measured according to comparative result.
A kind of liquid crystal display (LCD) gamma-correction method, it may further comprise the steps: step 1, a LCD to be measured is provided, make this LCD to be measured show each grey menu according to the pairing parameter information of standard gamma curve and the gray scale voltage of its storage inside; Step 2 is utilized the actual displayed brightness of the shown grey menu of this LCD to be measured of a photoreceptor sensing, and is a digital voltage signal with this actual displayed brightness transition; Step 3 is utilized a micro-control unit relatively this digital voltage signal and the pairing parameter information of this standard gamma curve, and is regulated the gray scale voltage of this LCD to be measured according to comparative result.
Compared with prior art, this liquid crystal display (LCD) gamma-correction system and bearing calibration are the actual displayed brightness that utilizes this this LCD to be measured of photoreceptor sensing, utilize this micro-control unit relatively voltage signal and the pairing parameter information of standard gamma curve of this representative actual displayed brightness then, and regulate gray scale voltage automatically according to comparative result, to realize gamma correction to this LCD to be measured.Owing in whole adjustment process, realize measurement, comparison and trimming process,, need not reduce correction time and production cost by manpower so this liquid crystal display (LCD) gamma-correction system and bearing calibration make gamma correction realize the robotization adjusting by electronic equipment.
Description of drawings
Fig. 1 is a kind of process flow diagram of prior art liquid crystal display (LCD) gamma-correction method.
Fig. 2 is the structural representation of liquid crystal display (LCD) gamma-correction of the present invention system one better embodiment.
Fig. 3 utilizes liquid crystal display (LCD) gamma-correction shown in Figure 2 system to carry out the method for gamma correction process flow diagram.
Embodiment
Seeing also Fig. 2, is the structural representation of liquid crystal display (LCD) gamma-correction of the present invention system one better embodiment.This liquid crystal display (LCD) gamma-correction system 20 comprises a photoreceptor (Sensor) 21, a signal amplifier 22, an analog/digital converter 23, a micro-control unit (Micro Control Unit, MCU) 24, one master controller 25 and a LCD 26 to be measured.This master controller 25 sends control command to this micro-control unit 24, and this control command represents whether this LCD 26 to be measured is carried out gamma correction.This micro-control unit 24 generates the level signal of representing each grey menu information, and this level signal is sent to LCD 26 to be measured, makes this LCD 26 to be measured show grey menu.The display brightness of these these LCD 26 shown grey menu to be measured of photoreceptor 21 sensings, and convert this display brightness to analog voltage signal.This analog voltage signal is carried out to via this signal amplifier 22 and is sent to this analog/digital converter 23 after ratio is amplified, this analog/digital converter 23 is converted to the digital voltage signal of representing this display brightness with this analog voltage signal, and this digital voltage signal is sent to this micro-control unit 24.
This LCD 26 to be measured comprises a gamma register 27, and these gamma register 27 storages constitute the parameter information and the gray scale voltage value of standard gamma curve, and the parameter information of this standard gamma curve comprises GTG value and the pairing brightness value of each GTG.This LCD 26 to be measured shows grey menu according to the canned data of this gamma register 27.This micro-control unit 24 is from the standard gamma parameter of curve information of these gamma register 27 reading pre-set, and the digital voltage signal of the representative display brightness that this pairing brightness value of standard gamma parameter of curve information and this photoreceptor 21 are sensed compares, suitably adjust current gray scale voltage according to comparative result again, up to successively via this photoreceptor 21, till this signal amplifier 22 and this analog/digital converter 23 resulting digital voltage signals drop in the scope that standard gamma curve corresponding brightness value allowed, to adjust gray scale voltage again and write in this gamma register 27, thereby realize gamma correction as fresh information.
Seeing also Fig. 3, is to utilize this liquid crystal display (LCD) gamma-correction system 20 to carry out the method for gamma correction process flow diagram.Each step of this liquid crystal display (LCD) gamma-correction method comprises:
Step S21: this master controller 25 sends a steering order and begins gamma correction;
When proofreading and correct beginning, this master controller 25 sends a steering order to this micro-control unit 24, this micro-control unit 24 produces a grey menu, and this grey menu is sent to this LCD 26 to be measured, this LCD 26 to be measured is called the standard gamma curve corresponding parameter information of institute and gray scale voltage shows this grey menu.
Step S22: utilize the display brightness of this this LCD 26 to be measured of photoreceptor 21 sensings, and this display brightness is converted to a digital voltage signal;
The display brightness of this LCD 26 to be measured is via these photoreceptor 21 sensings and change into an analog voltage signal, because micro-control unit 24 can't the identification analog voltage signal, so this analog voltage signal also needs convert the digital voltage signal that can discern and represent current display brightness for this micro-control unit 24 to via this signal amplifier 21 and this analog/digital converter 23.
Step S23: utilize the relatively standard gamma calibration curve information of this digital voltage signal and this gamma register 27 storages of this micro-control unit 24;
This micro-control unit 24 receives this digital voltage signal and reads this standard gamma curve corresponding parameter information from this gamma register 27, be the normal brightness value under the current GTG, analyze relatively this normal brightness value and the digital voltage signal of representing current display brightness again.If this digital voltage signal does not exceed the error range of this standard gamma curve corresponding brightness value, then this LCD 26 to be measured of explanation display effect under this GTG is normal, need not to proofread and correct, and directly enters down the single order gamma correction; Otherwise, if this digital voltage signal exceeds the error range that this standard gamma curve corresponding brightness value is allowed, then this micro-control unit 24 sends a regulating command and revises gamma register 27 pairing gray scale voltage values, and makes this LCD 26 to be measured show this grey menu under this gray scale voltage.Simultaneously, again the display brightness that is operated in the LCD to be measured 26 under the new gray scale voltage is measured again, compared and regulates, till measured digital voltage signal dropped in the corresponding brightness value institute permissible error scope of this standard gamma curve, the gray scale voltage value that will finally adjust again was kept in this gamma register 27.Wherein, when the digital voltage signal of the current display brightness of representative exceeded the maximal value of this standard gamma curve institute corresponding brightness value, this micro-control unit 24 reduced the gray scale voltage value that this gamma register 27 is stored; Otherwise when this digital voltage signal during less than the minimum value of this standard gamma curve institute corresponding brightness value, this micro-control unit 24 will increase the gray scale voltage value that this gamma register 27 is stored.
Step S24: the current gray scale voltage of adjusting of these micro-control unit 24 shieldings, repeat above-mentioned steps, next GTG is proofreaied and correct;
Step S25: after treating that whole gray scale correction finish, this micro-control unit 24 is notified this master controller 25 to adjust and is finished, and this master controller 25 cuts out this micro-control unit 24.
After this LCD 26 to be measured is finished gamma correction, this micro-control unit 24 sends a feedback signal to this master controller 25, inform that these master controller 25 these LCD 26 gamma corrections to be measured finish, then this master controller 25 will send another steering order and cut out this micro-control unit 24.
Above-mentioned liquid crystal display (LCD) gamma-correction system 20 and bearing calibration are the display brightness that utilizes this this LCD 26 to be measured of photoreceptor 21 sensings, utilize this micro-control unit 24 relatively this display brightness and the pairing brightness value of standard gamma curve then, and regulate gray scale voltage automatically according to comparative result, to realize gamma correction to this LCD 26 to be measured.As seen, owing in whole adjustment process, realize measurement, comparison and trimming process by electronic equipment, this liquid crystal display (LCD) gamma-correction system 20 makes gamma correction realize the robotization adjusting with bearing calibration, need not reduce correction time and production cost by manpower.
Claims (10)
1. liquid crystal display (LCD) gamma-correction system, it comprises a LCD to be measured, this LCD to be measured shows each grey menu according to the pairing parameter information of standard gamma curve and the gray scale voltage of storage inside, it is characterized in that: this liquid crystal display (LCD) gamma-correction system further comprises a photoreceptor and a micro-control unit, the actual displayed brightness of the shown grey menu of this LCD to be measured of this photoreceptor sensing, and this actual displayed brightness is converted into voltage signal, this micro-control unit relatively should be represented the voltage signal and the pairing parameter information of this standard gamma curve of actual displayed brightness, and regulated the gray scale voltage of this LCD to be measured according to comparative result.
2. liquid crystal display (LCD) gamma-correction as claimed in claim 1 system, it is characterized in that: the pairing parameter information of this standard gamma curve comprises GTG value and the pairing brightness value of each GTG.
3. liquid crystal display (LCD) gamma-correction as claimed in claim 2 system, it is characterized in that: this LCD to be measured comprises a gamma register, this gamma register is stored pairing parameter information of this standard gamma curve and gray scale voltage.
4. liquid crystal display (LCD) gamma-correction as claimed in claim 1 system, it is characterized in that: when the comparative result of this micro-control unit exceeded the error range that the corresponding parameter information of this standard gamma curve allowed by voltage signal, this micro-control unit was revised the corresponding gray scale voltage of standard gamma curve of this LCD storage to be measured; Otherwise, when the comparative result of this micro-control unit does not exceed the error range that the corresponding parameter information of this standard gamma curve allowed by voltage signal, then directly enter the correction of next grey menu.
5. liquid crystal display (LCD) gamma-correction as claimed in claim 1 system, it is characterized in that: this liquid crystal display (LCD) gamma-correction system further comprises a master controller, whether this micro-control unit of this main controller controls carries out gamma correction to this LCD to be measured, simultaneously, after correction finishes, this micro-control unit will send a feedback signal to this master controller, make this micro-control unit of this main controller controls stop to proofread and correct.
6. liquid crystal display (LCD) gamma-correction method, it may further comprise the steps: step 1, one LCD to be measured is provided, makes this LCD to be measured show each grey menu according to the pairing parameter information of standard gamma curve and the gray scale voltage of its storage inside; Step 2 is utilized the actual displayed brightness of the shown grey menu of this LCD to be measured of a photoreceptor sensing, and is a digital voltage signal with this actual displayed brightness transition; Step 3 is utilized a micro-control unit relatively this digital voltage signal and the pairing parameter information of this standard gamma curve, and is regulated the gray scale voltage of this LCD to be measured according to comparative result.
7. liquid crystal display (LCD) gamma-correction method as claimed in claim 6, it is characterized in that: this liquid crystal display (LCD) gamma-correction method comprises that further utilizing a master controller to send a steering order starts this micro-control unit, thereby makes this micro-control unit produce the step of a grey menu to this LCD to be measured.
8. liquid crystal display (LCD) gamma-correction method as claimed in claim 7, it is characterized in that: this liquid crystal display (LCD) gamma-correction method further comprises after this liquid crystal display (LCD) gamma-correction to be measured finishes, utilize this micro-control unit to send a feedback signal to this master controller, inform that the master controller correction finishes, then this master controller sends the step that another steering order is closed this micro-control unit.
9. liquid crystal display (LCD) gamma-correction method as claimed in claim 6, it is characterized in that: in this step 3, when the digital voltage signal of this representative actual displayed brightness exceeds the error range that the corresponding parameter information of this standard gamma curve allowed, this micro-control unit is revised the corresponding gray scale voltage of this LCD storage to be measured, sense till digital voltage signal drops in the error range up to photoreceptor, finish a gray scale correction; Otherwise, when this digital voltage signal does not exceed the error range that the corresponding parameter information of this standard gamma curve allowed, then directly next GTG is proofreaied and correct.
10. liquid crystal display (LCD) gamma-correction method as claimed in claim 9 is characterized in that: in this step 3, after a gray scale correction finished, this micro-control unit will shield proofreaied and correct good gray scale voltage, other GTG is proofreaied and correct again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610064633A CN101211035B (en) | 2006-12-29 | 2006-12-29 | LCD display gamma correction system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610064633A CN101211035B (en) | 2006-12-29 | 2006-12-29 | LCD display gamma correction system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101211035A CN101211035A (en) | 2008-07-02 |
| CN101211035B true CN101211035B (en) | 2010-05-26 |
Family
ID=39611173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610064633A Expired - Fee Related CN101211035B (en) | 2006-12-29 | 2006-12-29 | LCD display gamma correction system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101211035B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109147708A (en) * | 2018-09-30 | 2019-01-04 | 重庆惠科金渝光电科技有限公司 | Gamma value adjusting method, device and the display equipment of display panel |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751900B (en) * | 2008-12-05 | 2012-07-25 | 青岛海信电器股份有限公司 | Display module control method and display device |
| CN101707050B (en) * | 2009-12-01 | 2012-08-08 | 福建华映显示科技有限公司 | Gamma voltage selecting method of liquid crystal display (LCD) device |
| CN102348126A (en) * | 2010-08-02 | 2012-02-08 | 厦门华侨电子股份有限公司 | Method for realizing automatic adjustment of Gamma curve of television through computer |
| CN102621717B (en) * | 2011-04-01 | 2014-05-14 | 北京国科世纪激光技术有限公司 | Method and system for measuring gamma curve of liquid crystal spatial light modulator |
| CN102750914B (en) * | 2011-04-18 | 2014-12-24 | 青岛海信电器股份有限公司 | Display module driving circuit, driving method and liquid crystal television |
| CN102566095B (en) * | 2011-09-15 | 2015-01-21 | 北京国科世纪激光技术有限公司 | Method and system for measuring gamma curves of liquid crystal spatial light modulator |
| CN104008736B (en) * | 2013-02-26 | 2017-07-07 | 合肥京东方光电科技有限公司 | Automatically adjust device, the optics debugging apparatus of liquid crystal display gamma curve |
| CN103149722B (en) * | 2013-03-06 | 2016-12-28 | 深圳Tcl新技术有限公司 | liquid crystal display processing method, device and liquid crystal display |
| CN103197444B (en) * | 2013-03-22 | 2015-09-30 | 深圳市华星光电技术有限公司 | The measuring method of a kind of liquid crystal display response time and system |
| CN103926714B (en) * | 2013-06-28 | 2017-03-08 | 上海天马微电子有限公司 | A kind of display device gamma correction system and bearing calibration |
| CN103500560B (en) * | 2013-08-15 | 2016-06-01 | 京东方科技集团股份有限公司 | A kind of processes and displays module brightness data method, system and display device |
| CN103716565A (en) * | 2013-12-20 | 2014-04-09 | 乐视致新电子科技（天津）有限公司 | Display equipment and method and device for setting analog-digital conversion parameters in display equipment |
| CN204045192U (en) * | 2014-04-18 | 2014-12-24 | 全方位数位影像开发股份有限公司 | The self-image correcting device of liquid crystal display |
| CN103985370B (en) * | 2014-05-27 | 2016-07-06 | 广东欧珀移动通信有限公司 | LCDs color calibration method and device |
| CN106157870B (en) * | 2014-11-18 | 2019-04-02 | 深圳市华星光电技术有限公司 | Method of adjustment, device and the liquid crystal display systems of display parameters |
| CN105070252B (en) | 2015-08-13 | 2018-05-08 | 小米科技有限责任公司 | Reduce the method and device of display brightness |
| CN105096827B (en) | 2015-08-14 | 2017-12-08 | 京东方科技集团股份有限公司 | Gamma curve adjusting method and device |
| CN105528976B (en) * | 2016-01-29 | 2018-06-05 | 深圳中科维优科技有限公司 | All automatic measurement and the apparatus and method of calibration display screen gamma curve |
| CN105761692B (en) | 2016-05-04 | 2018-08-14 | 深圳市华星光电技术有限公司 | The system that gamma for on-line tuning liquid crystal display panel encodes |
| CN106057135B (en) * | 2016-07-26 | 2019-04-12 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of display brightness |
| CN106384580A (en) * | 2016-09-14 | 2017-02-08 | 深圳市视显光电技术有限公司 | Gamma automatic correction device and method for LCD logic board |
| CN107123385A (en) * | 2017-02-10 | 2017-09-01 | 北京集创北方科技股份有限公司 | Gamma curve correcting method and system |
| CN107479222B (en) * | 2017-08-28 | 2020-08-11 | 惠科股份有限公司 | Measuring method and device for measuring display panel |
| WO2019047114A1 (en) * | 2017-09-07 | 2019-03-14 | 深圳传音通讯有限公司 | Liquid crystal display gamma curve debugging method and debugging system |
| CN109285490A (en) * | 2018-09-30 | 2019-01-29 | 重庆惠科金渝光电科技有限公司 | Data processing method, data processing system and computer readable storage medium |
| 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 |
| CN109979390B (en) * | 2019-04-09 | 2020-10-30 | 京东方科技集团股份有限公司 | Gamma correction method, device, system and medium |
| CN109872687B (en) * | 2019-04-24 | 2020-07-03 | 京东方科技集团股份有限公司 | Gamma correction method, gamma correction module, display panel and display device |
| CN113009721A (en) * | 2019-12-18 | 2021-06-22 | 瑞昱半导体股份有限公司 | System and method for measuring response time of liquid crystal display |
| CN114613315A (en) * | 2020-12-09 | 2022-06-10 | 深圳市奥拓电子股份有限公司 | Gamma curve learning method and LED display controller |
| CN112908239B (en) * | 2021-02-18 | 2023-02-17 | 北京京东方显示技术有限公司 | Debugging system, debugging device and debugging method of display panel |
| CN113176074B (en) * | 2021-04-20 | 2022-09-27 | 武汉精立电子技术有限公司 | Non-contact Demura-Gamma-Flicker three-in-one measuring system and method |
| CN113178168B (en) * | 2021-04-22 | 2022-09-13 | 晟合微电子(肇庆)有限公司 | Method for inhibiting OLED panel chromatic aberration by utilizing IRC gamma rays |
| CN113393805B (en) * | 2021-06-24 | 2022-02-22 | 深圳市优景观复光电有限公司 | RGB (red, green and blue) three-color gamma correction method and system for LED display screen and computer storage medium thereof |
| CN114038399B (en) * | 2021-09-10 | 2022-09-16 | 重庆康佳光电技术研究院有限公司 | Gamma correction method and device, display device, storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770875A (en) * | 2004-11-04 | 2006-05-10 | 乐金电子（沈阳）有限公司 | Brightness coefficient repairing device and method for image display apparatus |
| CN1777927A (en) * | 2003-04-18 | 2006-05-24 | 皇家飞利浦电子股份有限公司 | Liquid crystal display gamma correction |
-
2006
- 2006-12-29 CN CN200610064633A patent/CN101211035B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777927A (en) * | 2003-04-18 | 2006-05-24 | 皇家飞利浦电子股份有限公司 | Liquid crystal display gamma correction |
| CN1770875A (en) * | 2004-11-04 | 2006-05-10 | 乐金电子（沈阳）有限公司 | Brightness coefficient repairing device and method for image display apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-282196A 2001.10.12 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103325357B (en) * | 2013-07-05 | 2016-04-13 | 合肥京东方光电科技有限公司 | A kind of gamma voltage method of adjustment, system and electronic equipment |
| CN109147708A (en) * | 2018-09-30 | 2019-01-04 | 重庆惠科金渝光电科技有限公司 | Gamma value adjusting method, device and the display equipment of display panel |
| CN109147708B (en) * | 2018-09-30 | 2021-02-26 | 重庆惠科金渝光电科技有限公司 | Gamma value adjusting method and device of display panel and display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101211035A (en) | 2008-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101211035B (en) | LCD display gamma correction system and method | |
| US10971098B2 (en) | Method and device for adjusting gray scale of display panel | |
| CN102483904B (en) | Liquid crystal display device and television receiver | |
| CN102105104B (en) | Gray scale display device | |
| CN101231830B (en) | Method for generating LCD device gamma correction table | |
| US8013878B2 (en) | Apparatus for automatically setting over-driving look-up table for liquid crystal display device and control method thereof | |
| CN102419947B (en) | Color temperature debugging method of liquid crystal display screen | |
| US7576750B2 (en) | Method and arrangement for optimizing a luminance characteristic curve | |
| CN101192384B (en) | LCD device gamma correction table creation method | |
| US8325824B2 (en) | Computer and monitor, display environment adjustment system and method comprising the same | |
| CN104361873A (en) | Method and device for adjusting display parameters and liquid crystal display system | |
| CN101105916A (en) | GAMMA curve regulation method and device | |
| CN103926714A (en) | Gamma correction system of display device and correction method | |
| CN101669145B (en) | Method and device for measuring image quality adjusting ability, method and device for adjusting image quality | |
| CN105047177A (en) | Display equipment adjustment device, display equipment adjustment method, and display device | |
| CN101894541A (en) | Method and system for correcting color temperature of display device | |
| CN102353527B (en) | Method for measuring brightness response characteristic of display screen of notebook computer | |
| CN109036326A (en) | A kind of gamma curve method and device adjusting display panel | |
| US20080158121A1 (en) | System and method for gamma regulating of liquid crystal display | |
| CN105185340B (en) | Common electric voltage debugging apparatus and method | |
| CN106251797A (en) | A kind of gamma-debugged method and device of display floater | |
| KR970071452A (en) | Analog Interface Liquid Crystal Display and Analog Interface Display | |
| CN101593493B (en) | Liquid crystal display (LCD) gamma-correction circuit and method | |
| US20070040846A1 (en) | Method and apparatus of correcting color coordinate and display device including apparatus of correcting color coordinate | |
| CN108597443B (en) | OLED mould group Gamma adjusting process and system based on PID industrial control unit (ICU) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20161229 |