CN101872591A - Overload driving device used for driving liquid crystal display panel - Google Patents
Overload driving device used for driving liquid crystal display panel Download PDFInfo
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Abstract
The invention provides an overload driving device used for driving a liquid crystal display panel. The liquid crystal display panel comprises pixels. The overload driving device comprises a quasi-level voltage generating circuit, a timing control module and a switching circuit. The quasi-level voltage generating circuit is used for selectively providing first quasi-level voltage or second quasi-level voltage of the liquid crystal display panel, wherein the second quasi-level voltage is greater than the first quasi-level voltage. The timing control module is used for detecting whether overexcitation voltage values corresponding to the pixels are greater than a critical value so as to selectively transmit control signals. The switching circuit is electrically connected between the timing control module and the quasi-level voltage generating circuit. When the switching circuit receives the control signals, the switching circuit generates switching signals to the quasi-level voltage generating circuit, and the quasi-level voltage generating circuit outputs the second quasi-level voltage.
Description
Corresponding relation; The interval S2 of Lower Half is corresponding to the liquid crystal optics reaction of S1 and the corresponding relation of time.
Shown in Figure 1A, suppose that liquid crystal molecule is 2V from initial GTG point L1 to ending the required driving voltage of GTG point L2, under the situation of not having the overload driving, liquid crystal molecule may be three times of an image time T1 from initial GTG point L1 to ending the required reaction time T2 of GTG point L2.In order to shorten the reaction time of liquid crystal molecule, traditional solution is shown in Figure 1B, suppose that liquid crystal molecule is 2V from initial GTG point L1 to ending the required driving voltage of GTG point L2, but (for example apply an overload of this display panels driving voltage, increase to 3V by required driving voltage 2V originally), so reaction time of liquid crystal molecule may be shortened to T2 ' (an image time T1) by T2 originally (an image time T1 three times).
But above-mentioned compensation method can't be applied in the picture of all LCD.See also Fig. 2.Fig. 2 shows traditionally the synoptic diagram by the 20th rank GTG to the 200 rank GTGs overload driving methods.As shown in Figure 2, when if the pixel of picture jumps to the 200th rank GTG from 20 rank GTGs, can utilize overload to drive the target bias that makes its driving voltage skip to the target bias of 232 rank GTGs and then get back to 200 rank GTGs earlier, so can reach the effect of accelerating liquid crystal deflecting element.Yet, if desire when n rank GTG skips to the 255th rank GTG, because eight display panels at most only has 255 rank GTGs, not have higher contrast, so the driving of overload at this time is invalid.
For a higher accurate position voltage constantly is provided, one of traditional improvement method is the figure place to nine that increases display panels or ten, just but this kind mode needs time-sequence control module to cooperate and can accomplish with driving circuit.Than prior art, traditional overload driving device must constantly provide a higher accurate position voltage.Yet above-mentioned driving circuit must use more the technology of high pressure just can deal with, and this can increase many financial cost to circuit manufacturer, and can influence yield and economic benefit.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of overload driving device, in order to drive display panels, to address the above problem.
According to a specific embodiment, overload driving device of the present invention comprises accurate position voltage generation circuit, time-sequence control module and commutation circuit.Accurate position voltage generation circuit provides first an accurate voltage or second an accurate voltage in order to the output terminal at this standard position voltage generation circuit optionally to display panels, and wherein second an accurate voltage is greater than first an accurate voltage.Time-sequence control module is in order to survey overdrive voltage value corresponding to the pixel of display panels whether greater than critical value, optionally to transmit control signal.Commutation circuit is electrically connected between time-sequence control module and the accurate position voltage generation circuit.After this commutation circuit receives control signal, produce switching signal to accurate position voltage generation circuit, cause accurate position voltage generation circuit output second an accurate voltage.
Than prior art, traditional overload driving device must constantly provide a higher accurate position voltage.Yet above-mentioned driving circuit must use more the technology of high pressure just can deal with, and this can increase many financial cost to circuit manufacturer, and can influence yield and economic benefit.Improvement method of the present invention only is that moment carries high levle voltage, rather than maintains the accurate position of high pressure always.So can use and generally make driving circuit and get final product, not only can also can save the cost of manufacture of driving circuit so that overload driving device is brought into play incisively and vividly than the technology of low pressure.
According to overload driving device of the present invention, wherein this commutation circuit comprises: first bleeder circuit is electrically connected between this output terminal and reference voltage of this standard position voltage generation circuit; And first on-off element be connected between this bleeder circuit and this time-sequence control module; After wherein this first on-off element received this control signal, first reference point of this bleeder circuit was exported this switching signal to this standard position voltage generation circuit.
According to overload driving device of the present invention, wherein this first bleeder circuit comprises: first resistance is connected between this output terminal and this first reference point of this standard position voltage generation circuit; Second resistance connects between this first reference point and second reference point; And the 3rd resistance connect between this second reference point and this reference voltage.
According to overload driving device of the present invention, wherein should, stop to export this second accurate voltage and export this first accurate voltage after the schedule time at this second accurate voltage of output by standard position voltage generation circuit.
According to overload driving device of the present invention, in one embodiment, this overload driving device also comprises enquiry circuit, and this enquiry circuit corresponding to first numerical value of first picture frame and corresponding to the second value of second picture frame, produces this overdrive voltage value of this pixel according to this pixel.
According to overload driving device of the present invention, also comprise the gamma circuit, this gamma circuit comprises: first positive polarity gamma resistance string, this first positive polarity gamma resistance string comprises first end points and second end points, this first end points connects this output terminal of this standard position voltage generation circuit, and this second end points is in order to provide first bias voltage to this display panels; And the first negative polarity gamma resistance string, this first negative polarity gamma resistance string comprises the 3rd end points, the 4th end points and five terminal point, wherein the 3rd end points connects this output terminal of this standard position voltage generation circuit, and the 4th end points is in order to provide second bias voltage to this display panels; And the second switch element is connected between this five terminal point and this time-sequence control module, and this second switch element optionally changes this second bias value according to this control signal of this time-sequence control module.
According to overload driving device of the present invention, wherein this first negative polarity gamma resistance string comprises: the 4th resistance is connected in the 3rd end points and the 4th end points; The 5th resistance connects the 4th end points and this five terminal point; And the 6th resistance connect between this five terminal point and the reference voltage; Wherein when this second switch element received this control signal of this time-sequence control module, this second switch element made this five terminal point be connected with this reference voltage.
According to overload driving device of the present invention, wherein first positive polarity gamma resistance string comprises: the 7th resistance is connected in this first end points and this second end points of this first positive polarity gamma resistance string; And the 8th resistance connect this second end points and reference voltage.
According to overload driving device of the present invention, this gamma circuit further comprises: a plurality of gamma resistance strings, in order to a plurality of gamma bias voltages to be provided to this display panels; And fixed voltage produce this first end points that circuit is connected in this first positive polarity resistance string with should a plurality of gammas resistance strings between, hinder for this a plurality of gammas to go here and there in order to produce fixed voltage value.
According to overload driving device of the present invention, wherein each gamma resistance string comprises the 6th end points and is electrically connected this fixed voltage and produces circuit to receive this fixed voltage value.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Figure 1A shows the reaction time of liquid crystal deflecting element under the situation of not having the overload driving.
Figure 1B shows the reaction time of liquid crystal deflecting element under the situation that overload drives.
Fig. 2 shows traditional synoptic diagram by the 20th rank GTG to the 200 rank GTG overload driving methods.
Fig. 3 shows the functional block diagram according to the overload driving device of a specific embodiment of the present invention.
Fig. 4 shows the synoptic diagram according to the overload driving method of improvement the 255th rank GTG of a specific embodiment of the present invention.
Fig. 5 shows the functional block diagram according to the overload driving device of a specific embodiment of the present invention.
Fig. 6 shows the synoptic diagram according to the gamma circuit of a specific embodiment of the present invention.
Embodiment
The invention provides a kind of overload driving device, in order to the voltage source that can dynamically adjust to be provided.
See also Fig. 3.Fig. 3 shows the functional block diagram according to the overload driving device 1 of a specific embodiment of the present invention.Overload driving device 1 can be in order to drive display panels, and wherein display panels comprises pixel (pixel).As shown in Figure 3, overload driving device 1 of the present invention comprises accurate position voltage generation circuit 10, time-sequence control module 12 and commutation circuit 14.The accurate position voltage generation circuit 10 of overload driving device 1 provides first an accurate voltage or second an accurate voltage in order to the output terminal 100 at this standard position voltage generation circuit 10 optionally to display panels.Wherein second an accurate voltage is greater than first an accurate voltage.Accurate position voltage generation circuit 10 provides first an accurate voltage to display panels in the ordinary course of things.
Time-sequence control module 12 is in order to detect overdrive voltage value corresponding to this pixel whether greater than critical value, optionally to transmit control signal.Each pixel receives corresponding positive polarity bias or corresponding negative polarity bias voltage according to a required GTG value (gray level).
With one eight display panels is example, and the high gray value of its pixel is 255 rank GTGs.When if the pixel of picture jumps to the 200th rank GTG from 20 rank GTGs, can utilize overload to drive earlier and skip to 232 rank GTGs and then get back to 200 rank GTGs, this moment, accurate position voltage generation circuit 10 only provided first an accurate voltage can realize that above-mentioned overload drives to display panels.
But if when n rank GTG skips to the 255th rank GTG, because eight at most only have 255 rank GTGs, there has not been higher contrast, and when sequential control module 12 detected this display panels aforesaid situation is arranged, what 12 of time-sequence control modules transmitted the accurate position of a high voltage controlled signal to commutation circuit 14.Commutation circuit 14 is after the control signal that receives the accurate position of high voltage, can produce switching signal immediately to accurate position voltage generation circuit 10, allow the output voltage of accurate position voltage generation circuit 10 switch to second an accurate voltage by first an accurate voltage, to change the magnitude of voltage of original the 255th rank GTG, can reach traditional overload and drive identical effect.See also Fig. 4.Fig. 4 shows the synoptic diagram according to the overload driving method of improvement the 255th rank GTG of a specific embodiment of the present invention.When if the pixel desire of picture skips to the 255th rank GTG from n rank GTG, this moment, dynamically moment was improved the voltage of voltage source, to change the magnitude of voltage of original the 255th rank GTG.
See also Fig. 5.Fig. 5 shows the functional block diagram according to the overload driving device of another specific embodiment of the present invention.As shown in Figure 5, in this specific embodiment, above-mentioned commutation circuit 14 further comprises first bleeder circuit 140 and first on-off element 142.And overload driving device 1 further comprises enquiry circuit 16.
First bleeder circuit 140 is electrically connected between this output terminal 100 and reference voltage 144 of this standard position voltage generation circuit 10; First on-off element 142 is connected between this bleeder circuit 140 and this time-sequence control module 12.After wherein first on-off element 142 received control signal, first reference point, the 1400 output switching signals of bleeder circuit were to accurate position voltage generation circuit 10.
First bleeder circuit 140 also further comprises first resistance 1404, second resistance 1406 and the 3rd resistance 1408.First resistance 1404 is connected between the output terminal 100 and first reference point 1400 of accurate position voltage generation circuit 10; Second resistance 1406 connects between first reference point 1400 and second reference point 1402; The 3rd resistance 1408 connects between second reference point 1402 and the reference voltage 144.The first above-mentioned on-off element 142 is connected between second reference point 1402 and this time-sequence control module 12 of this bleeder circuit 140.After first on-off element 142 received control signal, first on-off element 142 made second reference point 1402 be connected with reference voltage 144.
Accurate position voltage generation circuit 10, stops to export this second accurate voltage and exports this first accurate voltage after the schedule time at output second an accurate voltage.In actual applications, the schedule time can be an image time of display panels, or less than an image time.
In addition, according to this specific embodiment, enquiry circuit 16 corresponding to first numerical value of first picture frame and corresponding to the second value of second picture frame, produces this overdrive voltage value of this pixel according to this pixel.
See also Fig. 6.Fig. 6 shows the synoptic diagram according to the gamma circuit 5 of a specific embodiment of the present invention.As shown in Figure 6, gamma circuit 5 comprises first positive polarity gamma resistance string, 50, first negative polarity gamma resistance string 52 and second switch element 54.
First positive polarity gamma resistance string 50 comprises first end points 500 and second end points, 502, the first end points 500 connect output terminal 100, the second end points 502 of accurate position voltage generation circuit 10 as shown in Figure 3 in order to first bias voltage to be provided to display panels.In addition, first positive polarity gamma resistance string 50 comprises the 7th resistance 504 and the 8th resistance 506.The 7th resistance 504 is connected in first end points 500 and second end points 502 of first positive polarity gamma resistance string 50; The 8th resistance 506 connects second end points 502 and reference voltage 59.
First positive polarity gamma resistance string 50 be to go here and there with one group of positive polarity gamma resistance of the voltage difference maximum of common voltage (VCOM) in the gamma circuit 5, and in other words, first bias voltage is for providing the maximum positive polarity bias of display panels.After time-sequence control module 12 transmission as Fig. 5 control signal to first on-off element 142, first reference point, the 1400 output switching signals of bleeder circuit 140 are to accurate position voltage generation circuit 10, cause accurate position voltage generation circuit 10 outputs second an accurate voltage, and then improve first bias voltage of first positive polarity gamma resistance string 50.
First negative polarity gamma resistance string 52 comprises the 3rd end points 520, the 4th end points 522 and five terminal point 524, and wherein the 3rd end points 520 connects the output terminal of accurate position voltage generation circuit, and the 4th end points 522 is in order to provide second bias voltage to display panels.In addition, second switch element 54 is connected between five terminal point 524 and the time-sequence control module as shown in Figure 5 12.
First negative polarity gamma resistance string 52 be to go here and there with one group of negative polarity gamma resistance of the voltage difference maximum of VCOM in the gamma circuit 5, and in other words, second bias voltage is for providing the minimal negative polarity bias voltage of display panels.Therefore, when first on-off element 142 is accepted control signal and then first bias voltage of the positive polarity gamma resistance string 50 of winning is enhanced, second switch element 54 is also according to the control signal of time-sequence control module 12, change this second bias value, the voltage difference that makes itself and VCOM is apart from bigger, also promptly, more near zero-bit standard (Ground).The details of its implementation is as described below.
First negative polarity gamma resistance string further comprises the 4th resistance 526, the 5th resistance 528 and the 6th resistance 529.The 4th resistance 526 is connected in the 3rd end points 520 and the 4th end points 522; The 5th resistance 528 connects the 4th end points 522 and five terminal point 524; The 6th resistance 529 connects between five terminal point 524 and the reference voltage 59.When second switch element 54 received the control signal of time-sequence control module 12, second switch element 54 made five terminal point 524 be connected with reference voltage 59, caused second bias voltage of first negative polarity gamma resistance string 52 to descend.In actual applications, when the resistance value of the 5th resistance 528 compared to the resistance value of the 4th resistance 526 more hour, second bias voltage can be more near the zero-bit standard.
In addition, gamma circuit 5 further comprises a plurality of gamma resistance strings 56 and fixed voltage generation circuit 58.A plurality of gamma resistance strings 56 are in order to provide a plurality of gamma bias voltages to display panels; Fixed voltage generation circuit 58 is connected between first end points 500 and a plurality of gamma resistance string 56 of first positive polarity resistance string 50.
In actual applications, when the output voltage of accurate position voltage generation circuit 10 is increased to second accurate voltage by first an accurate voltage, the bias voltage of all gamma resistance strings of gamma circuit also can be enhanced in the lump, cause the drift of gamma curve (Gamma Curve), influence the display quality of display panels whole image.For addressing the above problem, in this embodiment, utilize fixed voltage generation circuit 58 to be connected between first end points 500 and a plurality of gamma resistance string 56 of first positive polarity resistance string 50, give a plurality of gamma resistance strings 56 in order to produce fixed voltage value, only change first bias voltage of first positive polarity gamma resistance string 50 and second bias voltage of first negative polarity gamma resistance string 52, it is the source that the bias voltage of other gamma resistance string then produces circuit 58 with fixed voltage, realize through electric resistance partial pressure equally, therefore relatedly make that the bias voltage of a plurality of gammas resistance strings 56 is a fixed value, can not be subjected to the influence that the output voltage of accurate position voltage generation circuit 10 changes fully.
Compared to prior art, traditional overload driving device must constantly provide a higher accurate position voltage.Yet above-mentioned driving circuit must use more that the technology of high pressure could realize, this can increase many financial cost to circuit manufacturer, and can influence yield and economic benefit.Improvement method of the present invention only is that moment carries high levle voltage, rather than maintains the accurate position of high pressure always.So can use and generally make driving circuit and get final product, not only can also can save the cost of manufacture of driving circuit so that overload driving device is brought into play incisively and vividly than the technology of low pressure.
By the detailed description of above preferred specific embodiment, hope can be known description feature of the present invention and spirit more, and is not to come protection scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is that hope can be covered by the arrangement of various changes and tool equality in the category of claim of institute of the present invention desire application.
The primary clustering symbol description
1: overload driving device 10: accurate position voltage generation circuit
12: time-sequence control module 14: commutation circuit
16: enquiry circuit 100: output terminal
142: the first on-off elements of 140: the first bleeder circuits
1402: the second reference point of 1400: the first reference point
1406: the second resistance of 1404: the first resistance
5: gamma circuit positive polarity gamma resistance in 50: the first string
502: the second end points of 500: the first end points
506: the eight resistance of 504: the seven resistance
52: the first negative polarity gamma resistance strings 54: second switch element
56: gamma resistance string 58: fixed voltage produces circuit
522: the four end points of 520: the three end points
526: the four resistance of 524: the five terminal points
529: the six resistance of 528: the five resistance.
Claims (10)
1. overload driving device, in order to drive display panels, wherein said display panels comprises pixel, and described overload driving device comprises:
Accurate position voltage generation circuit provides first an accurate voltage or second an accurate voltage in order to the output terminal at described accurate position voltage generation circuit optionally to described display panels, and wherein said second an accurate voltage is greater than described first an accurate voltage;
Time-sequence control module is in order to detect overdrive voltage value corresponding to described pixel whether greater than critical value, optionally to transmit control signal; And
Commutation circuit is electrically connected between described time-sequence control module and the described accurate position voltage generation circuit;
Wherein said commutation circuit produces switching signal to described accurate position voltage generation circuit after receiving described control signal, causes described accurate position voltage generation circuit to export described second an accurate voltage.
2. overload driving device according to claim 1, wherein said commutation circuit comprises:
First bleeder circuit is electrically connected between the described output terminal and reference voltage of described accurate position voltage generation circuit; And
First on-off element is connected between described bleeder circuit and the described time-sequence control module;
After wherein said first on-off element received described control signal, first reference point of described bleeder circuit was exported described switching signal to described accurate position voltage generation circuit.
3. overload driving device according to claim 2, wherein said first bleeder circuit comprises:
First resistance is connected between the described output terminal and described first reference point of described accurate position voltage generation circuit;
Second resistance connects between described first reference point and second reference point; And
The 3rd resistance connects between described second reference point and the described reference voltage.
4. overload driving device according to claim 1, wherein said accurate position voltage generation circuit, stop to export described second an accurate voltage and export described first an accurate voltage after the schedule time at output described second an accurate voltage.
5. overload driving device according to claim 1, wherein said overload driving device also comprises enquiry circuit, described enquiry circuit corresponding to first numerical value of first picture frame and corresponding to the second value of second picture frame, produces the described overdrive voltage value of described pixel according to described pixel.
6. overload driving device according to claim 1 also comprises the gamma circuit, and described gamma circuit comprises:
First positive polarity gamma resistance string, described first positive polarity gamma resistance string comprises first end points and second end points, described first end points connects the described output terminal of described accurate position voltage generation circuit, and described second end points is in order to provide first bias voltage to described display panels; And
First negative polarity gamma resistance string, described first negative polarity gamma resistance string comprises the 3rd end points, the 4th end points and five terminal point, wherein said the 3rd end points connects the described output terminal of described accurate position voltage generation circuit, and described the 4th end points is in order to provide second bias voltage to described display panels; And
The second switch element is connected between described five terminal point and the described time-sequence control module, and described second switch element optionally changes described second bias value according to the described control signal of described time-sequence control module.
7. overload driving device according to claim 6, wherein said first negative polarity gamma resistance string comprises:
The 4th resistance is connected in described the 3rd end points and described the 4th end points;
The 5th resistance connects described the 4th end points and described five terminal point; And
The 6th resistance connects between described five terminal point and the reference voltage;
Wherein when described second switch element received the described control signal of described time-sequence control module, described second switch element made described five terminal point be connected with described reference voltage.
8. overload driving device according to claim 6, wherein first positive polarity gamma resistance string comprises:
The 7th resistance is connected in described first end points and described second end points that described first positive polarity gamma resistance is gone here and there; And
The 8th resistance connects described second end points and reference voltage.
9. overload driving device according to claim 8, described gamma circuit further comprises:
A plurality of gamma resistance strings are in order to provide a plurality of gamma bias voltages to described display panels; And
Fixed voltage produces circuit, is connected between described first end points and described a plurality of gamma resistance string of described first positive polarity resistance string, gives the fixed voltage value of described a plurality of gamma resistance strings in order to generation.
10. overload driving device according to claim 9, wherein each gamma resistance string comprises the 6th end points and is electrically connected described fixed voltage and produces circuit to receive described fixed voltage value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101336790A CN101872591B (en) | 2009-04-22 | 2009-04-22 | Overload driving device used for driving liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101336790A CN101872591B (en) | 2009-04-22 | 2009-04-22 | Overload driving device used for driving liquid crystal display panel |
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| CN101872591A true CN101872591A (en) | 2010-10-27 |
| CN101872591B CN101872591B (en) | 2012-05-23 |
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| CN2009101336790A Expired - Fee Related CN101872591B (en) | 2009-04-22 | 2009-04-22 | Overload driving device used for driving liquid crystal display panel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957486A (en) * | 2016-07-05 | 2016-09-21 | 深圳市华星光电技术有限公司 | Display panel driving circuit and display panel |
| CN105957482A (en) * | 2016-06-22 | 2016-09-21 | 深圳市华星光电技术有限公司 | Display driving circuit and liquid crystal display panel |
| CN105976764A (en) * | 2016-07-22 | 2016-09-28 | 深圳市华星光电技术有限公司 | Power supply chip and AMOLED driving system |
| CN108831394A (en) * | 2018-06-29 | 2018-11-16 | 北京小米移动软件有限公司 | interface display method and device |
| CN111477192A (en) * | 2020-05-25 | 2020-07-31 | 京东方科技集团股份有限公司 | Adjusting method, adjusting module and display device |
| WO2022032780A1 (en) * | 2020-08-11 | 2022-02-17 | Tcl华星光电技术有限公司 | Display panel view angle compensation method and display panel |
| CN114743517A (en) * | 2022-04-20 | 2022-07-12 | 深圳市华星光电半导体显示技术有限公司 | Common voltage supply circuit and display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7420552B2 (en) * | 2004-03-16 | 2008-09-02 | Matsushita Electric Industrial Co., Ltd. | Driving voltage control device |
| JP2007147959A (en) * | 2005-11-28 | 2007-06-14 | Nec Lcd Technologies Ltd | Driving circuit of lcd panel |
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2009
- 2009-04-22 CN CN2009101336790A patent/CN101872591B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957482A (en) * | 2016-06-22 | 2016-09-21 | 深圳市华星光电技术有限公司 | Display driving circuit and liquid crystal display panel |
| CN105957486A (en) * | 2016-07-05 | 2016-09-21 | 深圳市华星光电技术有限公司 | Display panel driving circuit and display panel |
| CN105976764A (en) * | 2016-07-22 | 2016-09-28 | 深圳市华星光电技术有限公司 | Power supply chip and AMOLED driving system |
| CN108831394A (en) * | 2018-06-29 | 2018-11-16 | 北京小米移动软件有限公司 | interface display method and device |
| CN108831394B (en) * | 2018-06-29 | 2021-12-28 | 北京小米移动软件有限公司 | Interface display method and device |
| CN111477192A (en) * | 2020-05-25 | 2020-07-31 | 京东方科技集团股份有限公司 | Adjusting method, adjusting module and display device |
| CN111477192B (en) * | 2020-05-25 | 2022-04-15 | 京东方科技集团股份有限公司 | Adjusting method, adjusting module and display device |
| WO2022032780A1 (en) * | 2020-08-11 | 2022-02-17 | Tcl华星光电技术有限公司 | Display panel view angle compensation method and display panel |
| US11721299B2 (en) | 2020-08-11 | 2023-08-08 | Tcl China Star Optoelectronics Technology Co., Ltd. | Viewing angle compensation method of display panel and display panel |
| CN114743517A (en) * | 2022-04-20 | 2022-07-12 | 深圳市华星光电半导体显示技术有限公司 | Common voltage supply circuit and display device |
| CN114743517B (en) * | 2022-04-20 | 2023-10-13 | 深圳市华星光电半导体显示技术有限公司 | Common voltage supply circuit and display device |
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| Publication number | Publication date |
|---|---|
| CN101872591B (en) | 2012-05-23 |
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