CN101901574A - Regulating method, regulator and regulating system of common reference voltage - Google Patents
Regulating method, regulator and regulating system of common reference voltage Download PDFInfo
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- CN101901574A CN101901574A CN 201010246170 CN201010246170A CN101901574A CN 101901574 A CN101901574 A CN 101901574A CN 201010246170 CN201010246170 CN 201010246170 CN 201010246170 A CN201010246170 A CN 201010246170A CN 101901574 A CN101901574 A CN 101901574A
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Abstract
The invention discloses a regulating method, a regulator and a regulating system of a common reference voltage, wherein the regulating method of the common reference voltage comprises the following steps of: detecting the flicker degree of a liquid crystal display; comparing the flicker degree with a preset flicker degree threshold value; and regulating the flicker degree of the liquid crystal display under the condition that the flicker degree is larger than the flicker degree threshold value. The invention can be used for accurately and conveniently regulating the V-COM voltage.
Description
Technical field
The present invention relates to a kind of common reference voltage adjusting method, adjuster and Adjustment System.
Background technology
LCD is when display frame, for preventing that liquid crystal molecule from causing slow-wittedization of liquid crystal towards a direction deflection, can make its according to certain refreshing frequency (as 60Hz, 120Hz, 240Hz) carry out positively biased and anti-positively biased should be identical with anti-drift angle degree partially, otherwise can cause positively biased and anti-when inclined to one side printing opacity different, brightness is different, and the human eye visual sense is exactly screen flicker.Vcom (common reference voltage) adopts digital regulation resistance to adjust voltage swing, and the digital regulation resistance register is added the size that Vcom voltage is directly controlled in reducing, adjusts liquid crystal positively biased and anti-drift angle degree thereby reach, and eliminates screen flicker.
The LVDS signal of the liquid crystal display of the signal processing unit of televisor supply at present belongs to digital signal, and the driving liquid crystal deflecting element is aanalogvoltage, because the inconsistency of aanalogvoltage, therefore need to mate an optimum voltage between the two, this voltage is V-COM voltage, so each liquid crystal display all needs to carry out the V-COM adjustment when dispatching from the factory.Do not adjust or adjust subjective effect not in place and can feel screen flicker.
Fig. 1 is the synoptic diagram that common reference voltage is adjusted according to correlation technique.
As shown in Figure 1, in correlation technique, it mainly is to be connected with liquid crystal display after connecting change-over panel with computer that the VCOM of liquid crystal display producer adjusts, and by the flicker degree manual operation computer of eye-observation liquid crystal display VCOM voltage is adjusted.In realizing process of the present invention, the inventor finds in the prior art V-COM voltage to be adjusted more complicated and versatility is poor.
Summary of the invention
At in the prior art V-COM voltage being adjusted more complicated and the poor problem of versatility and propose the present invention, for this reason, fundamental purpose of the present invention is to provide a kind of common reference voltage adjusting method, adjuster and Adjustment System, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of common reference voltage adjusting method.
Common reference voltage adjusting method according to the present invention comprises: the flicker degree of detection LCD monitor; Described flicker degree and default flicker degree threshold value are compared; And under the situation of described flicker degree, the flicker degree of LCD is adjusted greater than described flicker degree threshold value.
To achieve these goals, according to a further aspect in the invention, provide a kind of common reference voltage adjusting method adjuster.
Common reference voltage adjuster according to the present invention comprises: detection module is used for the flicker degree of detection LCD monitor; Comparison module is used for described flicker degree and default flicker degree threshold value are compared; And adjusting module, being used under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
To achieve these goals, according to a further aspect in the invention, provide a kind of common reference voltage adjusting method Adjustment System.This system comprises: LCD; And common reference voltage adjuster, be used to detect the flicker degree of described LCD, with described flicker degree with default flicker degree threshold value compares and under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
Because adopted the flicker degree of detection LCD monitor; Described flicker degree and default flicker degree threshold value are compared; And under the situation of described flicker degree greater than described flicker degree threshold value, the method that the flicker degree of LCD is adjusted, so overcome in the prior art V-COM voltage is adjusted more complicated and the poor technical matters of versatility, and then reached the technique effect of accurately, easily V-COM voltage being adjusted.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the synoptic diagram that common reference voltage is adjusted according to correlation technique;
Fig. 2 is the synoptic diagram that common reference voltage is adjusted according to the embodiment of the invention;
Fig. 3 is the process flow diagram according to the common reference voltage adjusting method of the embodiment of the invention;
Fig. 4 is the synoptic diagram according to the common reference voltage adjuster of first embodiment of the invention;
Fig. 5 is the synoptic diagram according to the common reference voltage adjuster of second embodiment of the invention;
Fig. 6 is the synoptic diagram according to the common reference voltage adjuster of third embodiment of the invention;
Fig. 7 is the synoptic diagram according to the preferred embodiment of common reference voltage adjuster of the present invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to embodiments of the invention, a kind of common reference voltage adjustment system is provided, this system comprises LCD and common reference voltage adjuster.
The common reference voltage adjuster is connected with LCD, be used to detect the flicker degree of described LCD, with described flicker degree with default flicker degree threshold value compares and under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
Fig. 2 is the synoptic diagram that common reference voltage is adjusted according to the embodiment of the invention.
As shown in Figure 2, may further comprise the steps according to the embodiment of the invention common reference voltage is adjusted:
Step S2 uses luminance sensor to gather the monochrome information of liquid crystal display, and the flicker degree of judgement liquid crystal display replaces the flicker situation of eye-observation liquid crystal display.
Step S4 uses the Mega16L single-chip microcomputer to replace computer, accomplishes portability.
Step S6, adjustment process realizes the sensor acquisition monochrome information, single-chip microcomputer is judged, is adjusted.
Pass through the foregoing description, can cancel the human eye judgement and manually adjust numerous artificial links, thereby can adjust common reference voltage easily, and owing to adjustment process is judged and adjustment by single-chip microcomputer, thereby being suitable for commercial application, versatility is more intense.
Fig. 3 is the process flow diagram according to the common reference voltage adjusting method of the embodiment of the invention.
As shown in the figure, this method may further comprise the steps:
Step S102, the flicker degree of detection LCD monitor.
For example, can use the common reference voltage adjuster flicker degree of detection LCD monitor by the following method:
The common reference voltage adjuster is gathered first brightness value of very first time point and second brightness value of second time point; Preferably, described common reference voltage adjuster detects the flicker degree of described LCD center by the luminance sensor that is arranged at the LCD center.
The common reference voltage adjuster amplifies first brightness value and second brightness value;
The common reference voltage adjuster carries out digital-to-analog conversion to first brightness value and second brightness value; In this step, be digital signal by analog signal conversion with detected luminance signal.
The difference of first brightness value and second brightness obtains degree of flicker after the common reference voltage adjuster calculating digital-to-analog conversion.
Step S102 compares described flicker degree and default flicker degree threshold value.For example, use above-mentioned common reference voltage adjuster that described flicker degree and default flicker degree threshold value are compared.
Step S104, under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
For example, described common reference voltage adjuster can be by adjusting the digital regulation resistance on the described LCD so that described flicker degree is adjusted.
Described common reference voltage adjuster is adjusted flicker degree up to this LCD smaller or equal to above-mentioned default flicker degree threshold value to the flicker degree of LCD.
Preferably, said method can also comprise:
The common reference voltage adjuster receives the signal of user's input; And
Described common reference voltage adjuster is adjusted described default flicker degree thresholding according to described signal.
By this embodiment, the default flicker degree threshold value in the common reference voltage adjuster is adjustable, adjusts demand thereby can satisfy different flicker degree, has further improved the versatility of common reference voltage adjuster.
In the present invention, after described common reference voltage adjuster compared described flicker degree and default flicker degree threshold value, said method can also comprise: according to the different cue of difference output of comparative result.Method according to this embodiment may further comprise the steps:
Step S22, the flicker degree of common reference voltage adjuster detection LCD monitor.
This detection method comprises:
The common reference voltage adjuster is gathered first brightness value of very first time point and second brightness value of second time point; Preferably, described common reference voltage adjuster detects the flicker degree of described LCD center by the luminance sensor that is arranged at the LCD center.
The common reference voltage adjuster amplifies first brightness value and second brightness value;
The common reference voltage adjuster carries out digital-to-analog conversion to first brightness value and second brightness value; In this step, be digital signal by analog signal conversion with detected luminance signal.
The difference of first brightness value and second brightness obtains degree of flicker after the common reference voltage adjuster calculating digital-to-analog conversion.
Step S24, described common reference voltage adjuster compares described flicker degree and default flicker degree threshold value.And
Step S26, under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
Described common reference voltage adjuster can be by adding one or subtract and adjust to digital regulation resistance, when digital regulation resistance being added one or subtract for the moment, can change output voltage, thereby the brightness value that changes LCD is to adjust the flicker degree.
Step S28 is according to the different cue of difference output of comparative result.For example, under the situation of described flicker degree, export first auditory tone cues or utilize pilot lamp to export the signal indication of first color greater than default flicker degree threshold value; Under the situation of described flicker degree, export second auditory tone cues or utilize pilot lamp to export the signal indication of second color smaller or equal to default flicker degree threshold value.
Need to prove that the order of above-mentioned step S26 and step S28 can be arbitrarily.
Fig. 4 is the synoptic diagram according to the common reference voltage adjuster of first embodiment of the invention.
As shown in Figure 4, can find out that from system chart this system is divided into as the lower part:
System's power supply unit, this part mainly realizes following function:
(1) is the single-chip microcomputer power supply.
(2) be the power supplies of 1602 display modules.
(3) for providing, IIC draws power supply.
Analog input is gathered and the AD modular converter, is used to realize the data acquisition of simulating signal and is digital signal with analog signal conversion.Particularly, comprise with the lower part:
Luminance sensor ISL29009 gathers the TV screen monochrome information;
High speed amplifier OPA2683 amplifies the monochrome information of gathering; And
Ultra high speed A ADS4149 is that digital signal offers MUC with the brightness analog signal conversion of gathering.
After numeral output module, single-chip microcomputer were analyzed the data of gathering, the output control data was treated and is transferred digital regulation resistance to adjust.
Communication module conveniently later is provided with change by computer to system upgrade and parameter.
Display module is used for the panel information to adjusting, and 1602 display modules that pass through that voltage and adjustment state are real-time show.
Alarm modules is used at state OK and makes mistakes and warn by pilot lamp and hummer.
Dial-up selector switch and button control module, wherein:
The dial-up selector switch comprises:
First switch, by this switch, screen refresh rate can be selected 60Hz, 120Hz, 240Hz.
Second switch is used for VCOM store voltages address selection.
The 3rd switch is used for the selection of the qualified difference DELTA of brightness.
Fig. 5 is the synoptic diagram according to the common reference voltage adjuster of second embodiment of the invention.
As shown in the figure, the common reference voltage adjuster comprises detection module 502, comparison module 504 and adjusting module 506.
Detection module 502 is used for the flicker degree of detection LCD monitor;
Comparison module 504 is used for described flicker degree and default flicker degree threshold value are compared;
Adjusting module 506 is used under the situation of described flicker degree greater than described flicker degree threshold value, and described common reference voltage adjuster is adjusted the flicker degree of LCD.
Fig. 6 is the synoptic diagram according to the common reference voltage adjuster of third embodiment of the invention.
As shown in the figure, the common reference voltage adjuster comprises detection module 502, comparison module 504 and adjusting module 506.
Detection module 502 is used for the flicker degree of detection LCD monitor;
Wherein, described detection module 502 comprises: acquisition module 522, amplifier 524, digital to analog converter 526 and computing module 528.
Acquisition module 522 is used to gather first brightness value of very first time point and second brightness value of second time point; This acquisition module can realize that preferably, this luminance sensor is arranged on the middle position of liquid crystal display equipment screen by luminance sensor.
Amplifier 524 is used for described first brightness value and described second brightness value are amplified;
Digital to analog converter 526 is used for described first brightness value and described second brightness value are carried out digital-to-analog conversion;
Computing module 528 is used to calculate the difference of first brightness value and second brightness after the digital-to-analog conversion, obtains described flicker degree.Wherein, this computing module 528 can be realized by single-chip microcomputer.
Comparison module 504 is used for described flicker degree and default flicker degree threshold value are compared; This comparison module 504 also can be realized by above-mentioned single-chip microcomputer.
Adjusting module 506 is used under the situation of described flicker degree greater than described flicker degree threshold value, and described common reference voltage adjuster is adjusted the flicker degree of LCD.
Preferably, the common reference voltage adjuster also comprises: output module 508 is used for the different cue of difference output according to comparative result.
Fig. 7 is the synoptic diagram according to the preferred embodiment of common reference voltage adjusting method of the present invention.
As shown in Figure 7, this method may further comprise the steps:
Step S201, each register and port in the initialization common reference voltage adjuster.Adjust instruction receiving, that is, adjust under the situation that button presses, execution in step S202 writes or storage instruction receiving, that is, under the situation that write key is pressed, execution in step S209.
Step S202 reads adjacent two luminance signal a, b.Luminance sensor is according to screen-refresh frequency collection signal, and to adjacent two luminance signal a and b (must have one of a positively biased partially anti-) calculated difference Δ ab, preestablishing qualified difference is Δ;
If Δ ab≤Δ, then screen flicker degree OK.
If Δ ab 〉=Δ then adds an operation to the VCOM voltage register, increase VCOM voltage.
Step S203, if the difference of a and b smaller or equal to predetermined threshold value Δ, then account for screen flicker degree OK promptly need not to adjust.
Step S204, if the difference of a and b greater than predetermined threshold value Δ, then account for screen flicker degree need be adjusted.
At this moment, digital regulation resistance to be transferred is added 1, read adjacent two luminance signal a ', b ' once more.
Step S205 is if the difference of a ' after transferring and b ' is more than or equal to the difference of a and b, then execution in step S206.
Step S206 if Δ a ' b '＜Δ ab then adds an operation to the VCOM voltage register always, increases VCOM voltage
Until Δ a ' b '＜Δ.
Step S207 is if the difference of a ' after transferring and b ' is less than the difference of a and b, then execution in step S208.
Step S208 if Δ a ' b ' 〉=Δ ab then subtracts an operation to the VCOM voltage register always, reduces VCOM voltage,
Until Δ a ' b '＜Δ.
Use special-purpose Flicker graph card to light liquid crystal display to be transferred, adjuster IIC mouth is connected with liquid crystal display IIC mouth, sensor places near the liquid crystal display centre, presses the adjustment button, can finish adjustment process automatically.
As can be seen from the above description, the present invention has realized easily and accurately common reference voltage being adjusted, and versatility is more intense, is convenient to improve the efficient that the common reference voltage of LCD is adjusted.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for adjustment of a common reference voltage is characterized in that, comprising:
The flicker degree of detection LCD monitor;
Described flicker degree and default flicker degree threshold value are compared;
Under the situation of described flicker degree, the flicker degree of LCD is adjusted greater than described flicker degree threshold value.
2. the method for adjustment of common reference voltage according to claim 1 is characterized in that, the flicker degree of detection LCD monitor comprises: the flicker degree that detects described LCD center.
3. the method for adjustment of common reference voltage according to claim 1 and 2 is characterized in that, the flicker degree of detection LCD monitor comprises:
Gather first brightness value of very first time point and second brightness value of second time point;
Described first brightness value and described second brightness value are amplified;
Described first brightness value and described second brightness value are carried out digital-to-analog conversion;
The difference of first brightness value and second brightness obtains described flicker degree after the calculating digital-to-analog conversion.
4. the method for adjustment of common reference voltage according to claim 1 and 2 is characterized in that, described flicker degree to LCD is adjusted and comprised:
By the digital regulation resistance on the described LCD being adjusted so that described flicker degree is adjusted.
5. the method for adjustment of common reference voltage according to claim 1 and 2 is characterized in that, described method also comprises:
Receive the signal of user's input;
According to described signal described default flicker degree thresholding is adjusted.
6. the method for adjustment of common reference voltage according to claim 1 and 2 is characterized in that, after described flicker degree and default flicker degree threshold value were compared, described method also comprised:
The different cue of difference output according to comparative result.
7. a common reference voltage adjuster is characterized in that, comprising:
Detection module is used for the flicker degree of detection LCD monitor;
Comparison module is used for described flicker degree and default flicker degree threshold value are compared; And
Adjusting module is used under the situation of described flicker degree greater than described flicker degree threshold value, and described common reference voltage adjuster is adjusted the flicker degree of LCD.
8. the adjuster of common reference voltage according to claim 7 is characterized in that, described detection module comprises:
Acquisition module is used to gather first brightness value of very first time point and second brightness value of second time point;
Amplifier is used for described first brightness value and described second brightness value are amplified;
Digital to analog converter is used for described first brightness value and described second brightness value are carried out digital-to-analog conversion;
Computing module is used to calculate the difference of first brightness value and second brightness after the digital-to-analog conversion, obtains described flicker degree.
9. the adjuster of common reference voltage according to claim 7 is characterized in that, also comprises:
Output module is used for the different cue of difference output according to comparative result.
10. a common reference voltage adjustment system is characterized in that, comprising:
LCD; And
The common reference voltage adjuster, be used to detect the flicker degree of described LCD, with described flicker degree with default flicker degree threshold value compares and under the situation of described flicker degree greater than described flicker degree threshold value, described common reference voltage adjuster is adjusted the flicker degree of LCD.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542963A (en) * | 2012-02-23 | 2012-07-04 | 青岛海信电器股份有限公司 | Method and system for automatically adjusting VCOM voltage of liquid crystal module product |
| CN103366657A (en) * | 2013-07-17 | 2013-10-23 | 青岛海信电器股份有限公司 | Flicker regulating system |
| CN103606361A (en) * | 2013-11-30 | 2014-02-26 | 无锡博一光电科技有限公司 | Method and device for automatically regulating flickers of liquid crystal display module |
| CN103761956A (en) * | 2013-12-20 | 2014-04-30 | 武汉精立电子技术有限公司 | Gamma-Flicker comprehensive adjustment method for liquid crystal display |
| CN104181719A (en) * | 2014-09-17 | 2014-12-03 | 深圳市华星光电技术有限公司 | Method for adjusting flicker degree of liquid crystal panels |
| WO2014190612A1 (en) * | 2013-05-30 | 2014-12-04 | 北京京东方光电科技有限公司 | Method and device for automatically correcting flicker of liquid crystal display |
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| CN107123398A (en) * | 2017-03-21 | 2017-09-01 | 青岛海信电器股份有限公司 | The VCOM voltage adjusting methods and device of LCDs |
| CN107464513A (en) * | 2017-09-18 | 2017-12-12 | 惠科股份有限公司 | The film flicker automatic checkout system and detection method of a kind of display panel |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499478A (en) * | 2002-11-04 | 2004-05-26 | ��������ʾ���Ƽ���˾ | Public voltage regulation circuit of LCD device |
| US20060145986A1 (en) * | 2005-01-04 | 2006-07-06 | Samsung Electronics Co., Ltd. | Liquid crystal display, and method and system for automatically adjusting flicker of the same |
| US7119492B2 (en) * | 2004-01-19 | 2006-10-10 | Nec Viewtechnology, Ltd. | Flicker detecting system for detecting lamp life differing from lamp to lamp |
| US20070164963A1 (en) * | 2006-01-19 | 2007-07-19 | Kim Taek-Young | Common voltage generation circuit and liquid crystal display comprising the same |
| CN101086569A (en) * | 2006-06-09 | 2007-12-12 | 群康科技(深圳)有限公司 | Liquid crystal display burning device and burning method |
| CN101320541A (en) * | 2007-05-02 | 2008-12-10 | 三星电子株式会社 | Method of preventing flicker, circuit for performing the method, and display apparatus having the circuit |
| CN101577096A (en) * | 2008-05-07 | 2009-11-11 | 群康科技(深圳)有限公司 | Method for adjusting common voltage of liquid crystal display device |
| KR100938976B1 (en) * | 2002-12-31 | 2010-01-26 | 엘지디스플레이 주식회사 | Vcom regulation device of LCD and regulation method of thereof |
-
2010
- 2010-08-04 CN CN 201010246170 patent/CN101901574A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499478A (en) * | 2002-11-04 | 2004-05-26 | ��������ʾ���Ƽ���˾ | Public voltage regulation circuit of LCD device |
| KR100938976B1 (en) * | 2002-12-31 | 2010-01-26 | 엘지디스플레이 주식회사 | Vcom regulation device of LCD and regulation method of thereof |
| US7119492B2 (en) * | 2004-01-19 | 2006-10-10 | Nec Viewtechnology, Ltd. | Flicker detecting system for detecting lamp life differing from lamp to lamp |
| US20060145986A1 (en) * | 2005-01-04 | 2006-07-06 | Samsung Electronics Co., Ltd. | Liquid crystal display, and method and system for automatically adjusting flicker of the same |
| US20070164963A1 (en) * | 2006-01-19 | 2007-07-19 | Kim Taek-Young | Common voltage generation circuit and liquid crystal display comprising the same |
| CN101086569A (en) * | 2006-06-09 | 2007-12-12 | 群康科技(深圳)有限公司 | Liquid crystal display burning device and burning method |
| CN101320541A (en) * | 2007-05-02 | 2008-12-10 | 三星电子株式会社 | Method of preventing flicker, circuit for performing the method, and display apparatus having the circuit |
| CN101577096A (en) * | 2008-05-07 | 2009-11-11 | 群康科技(深圳)有限公司 | Method for adjusting common voltage of liquid crystal display device |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542963A (en) * | 2012-02-23 | 2012-07-04 | 青岛海信电器股份有限公司 | Method and system for automatically adjusting VCOM voltage of liquid crystal module product |
| WO2014190612A1 (en) * | 2013-05-30 | 2014-12-04 | 北京京东方光电科技有限公司 | Method and device for automatically correcting flicker of liquid crystal display |
| CN104217687A (en) * | 2013-05-30 | 2014-12-17 | 北京京东方光电科技有限公司 | Method and device for automatically correcting flickering of liquid crystal display |
| CN103366657B (en) * | 2013-07-17 | 2016-07-13 | 青岛海信电器股份有限公司 | Flicker regulates system |
| CN103366657A (en) * | 2013-07-17 | 2013-10-23 | 青岛海信电器股份有限公司 | Flicker regulating system |
| CN103606361A (en) * | 2013-11-30 | 2014-02-26 | 无锡博一光电科技有限公司 | Method and device for automatically regulating flickers of liquid crystal display module |
| CN103761956A (en) * | 2013-12-20 | 2014-04-30 | 武汉精立电子技术有限公司 | Gamma-Flicker comprehensive adjustment method for liquid crystal display |
| CN103761956B (en) * | 2013-12-20 | 2016-03-02 | 武汉精立电子技术有限公司 | The comprehensive adjusting process of Gamma-Flicker of liquid crystal display |
| CN104181719B (en) * | 2014-09-17 | 2016-11-09 | 深圳市华星光电技术有限公司 | The method of adjustable liquid crystal display panel scintillation |
| CN104181719A (en) * | 2014-09-17 | 2014-12-03 | 深圳市华星光电技术有限公司 | Method for adjusting flicker degree of liquid crystal panels |
| CN104766582A (en) * | 2015-04-24 | 2015-07-08 | 合肥京东方光电科技有限公司 | Regulating system, regulating method thereof and display device |
| CN105096855B (en) * | 2015-07-22 | 2018-11-06 | 深圳市华星光电技术有限公司 | Liquid crystal display panel common voltage adjusting apparatus and liquid crystal display panel method for adjusting common voltage |
| CN105096855A (en) * | 2015-07-22 | 2015-11-25 | 深圳市华星光电技术有限公司 | Common voltage adjusting device for liquid crystal panel and common voltage adjusting method for liquid crystal panel |
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| US10692461B2 (en) | 2017-02-21 | 2020-06-23 | Boe Technology Group Co., Ltd. | Display device, manufacturing method thereof, and counter substrate |
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| CN106898321B (en) * | 2017-03-23 | 2019-10-01 | 京东方科技集团股份有限公司 | Flash adjustment device and flash adjustment method, display equipment |
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