CN105528999B - The display control method and device of liquid crystal display - Google Patents
The display control method and device of liquid crystal display Download PDFInfo
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- CN105528999B CN105528999B CN201610027395.3A CN201610027395A CN105528999B CN 105528999 B CN105528999 B CN 105528999B CN 201610027395 A CN201610027395 A CN 201610027395A CN 105528999 B CN105528999 B CN 105528999B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
Abstract
The present invention relates to the display control method and device of a kind of liquid crystal display.Wherein, this method includes adjusting the corresponding brightness value of grey decision-making of each pixel in the liquid crystal display as follows according to normal brightness change curve：The corresponding brightness value of the first grey decision-making in the first grey-scale range is adjusted to be less than first grey decision-making corresponding brightness value on the normal brightness change curve, the corresponding brightness value of the second grey decision-making in the second grey-scale range is adjusted to be higher than second grey decision-making corresponding brightness value on the normal brightness change curve；Wherein, the grey decision-making in first grey-scale range is less than the grey decision-making in second grey-scale range.By distorting normal brightness change curve, big visual angle colour cast can be improved, reduce distortion, it will be apparent that improve display effect.
Description
Technical field
The present invention relates to the display control method and device of field of liquid crystal display, more particularly to a kind of liquid crystal display.
Background technology
For liquid crystal display (Liquid Crystal Display, LCD) due to its energy conservation and environmental protection, the advantage such as light is current
To being widely applied and promote.Wherein use the liquid crystal of the drive pattern of perpendicular alignmnet (Vertical Alignment, VA)
Display screen, because its higher contrast and very fast response speed obtain the universal accreditation in market.
But VA drivings have the defects of natural：Colour cast (colorshift) phenomenon ratio when (i.e. side view) is checked at big visual angle
More serious, i.e., big visual angle seems picture meeting distortion, does not see image when serious even.
The content of the invention
Technical problem
In view of this, how the technical problem to be solved in the present invention is improve vision of the liquid crystal display at big visual angle
Effect.
Solution
In order to solve the above-mentioned technical problem, an a kind of embodiment according to the present invention, there is provided display of liquid crystal display
Control method, including：
The corresponding brightness value of the grey decision-making of each pixel in the liquid crystal display is carried out according to normal brightness change curve
Following adjustment：
The corresponding brightness value of the first grey decision-making in the first grey-scale range is adjusted to be less than first grey decision-making
The corresponding brightness value on the normal brightness change curve, the second grey decision-making in the second grey-scale range is corresponding bright
Angle value is adjusted to be higher than second grey decision-making corresponding brightness value on the normal brightness change curve；Wherein, described
Grey decision-making in one grey-scale range is less than the grey decision-making in second grey-scale range.
For the above method, in a kind of possible implementation, each grey decision-making of each pixel in the liquid crystal display
It is divided into three grey-scale ranges；
Wherein, first grey-scale range includes the low grey decision-making from 0 to first threshold, and middle grey-scale range is included from the
One threshold value is to the middle grey decision-making of second threshold, and second grey-scale range is including from second threshold to the high gray of highest grayscale
Value.
For the above method, in a kind of possible implementation, according to normal brightness change curve to the liquid crystal
The corresponding brightness value of the grey decision-making of each pixel is adjusted in display screen, is further included：
The corresponding brightness value of the 3rd grey decision-making in the middle grey-scale range is equal to the 3rd ash
Rank value corresponding brightness value on the normal brightness change curve.
For the above method, in a kind of possible implementation, further include：
According to each pixel in first grey-scale range, the middle grey-scale range and second grey-scale range
Grey decision-making and brightness value, generate at least one adjustment curve；
According to the grey decision-making and brightness value in used adjustment curve, the liquid crystal under perpendicular alignmnet drive pattern is controlled
The driving voltage of display screen.
For the above method, in a kind of possible implementation, further include：To each picture in the liquid crystal display
The red saturation scale of element is adjusted.
, can be according to normal brightness change curve to institute the present invention also provides a kind of display control unit of liquid crystal display
The corresponding brightness value of grey decision-making for stating each pixel in liquid crystal display is adjusted, and described device includes：
First adjustment module, for the corresponding brightness value of the first grey decision-making in the first grey-scale range to be adjusted to low
In first grey decision-making on the normal brightness change curve corresponding brightness value；
Second adjustment module, for the corresponding brightness value of the second grey decision-making in the second grey-scale range to be adjusted to high
In second grey decision-making on the normal brightness change curve corresponding brightness value；
Wherein, the grey decision-making in first grey-scale range is less than the grey decision-making in second grey-scale range.
For above device, in a kind of possible implementation, each grey decision-making of each pixel in the liquid crystal display
It is divided into three grey-scale ranges；Wherein, first grey-scale range includes the low grey decision-making from 0 to first threshold, middle grayscale model
Enclose including the middle grey decision-making from first threshold to second threshold, second grey-scale range includes grey from second threshold to highest
The high gray value of rank.
For above device, in a kind of possible implementation, further include：
Setup module, for the corresponding brightness value of the 3rd grey decision-making in the middle grey-scale range to be arranged to
In the 3rd grey decision-making on the normal brightness change curve corresponding brightness value.
For above device, in a kind of possible implementation, further include：
Curve generation module, is connected, for root respectively with the described first adjustment module, second adjustment module and setup module
According to grey decision-making of each pixel in first grey-scale range, the middle grey-scale range and second grey-scale range with
Brightness value, generates at least one adjustment curve；
Drive module, is connected with the curve generation module, for according to used by adjust curve in grey decision-making with
Brightness value, controls the driving voltage of the liquid crystal display under perpendicular alignmnet drive pattern.
For above device, in a kind of possible implementation, further include：
Saturation degree adjusts module, and user is adjusted the red saturation scale of each pixel in the liquid crystal display.
Beneficial effect
The display control method of the liquid crystal display of the present embodiment, by distorting normal brightness change curve, can improve
Big visual angle colour cast, reduces distortion, it will be apparent that improves display effect.
According to below with reference to the accompanying drawings becoming to detailed description of illustrative embodiments, further feature of the invention and aspect
It is clear.
Brief description of the drawings
Comprising in the description and the attached drawing of a part for constitution instruction and specification together illustrate the present invention's
Exemplary embodiment, feature and aspect, and for explaining the principle of the present invention.
Fig. 1 shows the flow chart of the display control method of liquid crystal display according to an embodiment of the invention；
Fig. 2 shows the signal of gamma curve in the display control method of liquid crystal display according to an embodiment of the invention
Figure；
Partial enlarged view of the gamma curve in low grayscale that Fig. 3 is Fig. 2；
Fig. 4 is picture of the prior art when normally facing；
Fig. 5 is picture of the prior art in the display screen from the angle of 45 degree of side；
Fig. 6 shows that the display control method of liquid crystal display according to an embodiment of the invention was stretched when facing after curve
Picture；
Fig. 7 crosses curvilinear sides apparent time after going out the display control method stretching of liquid crystal display according to an embodiment of the invention
Picture；
Fig. 8 shows the flow chart of the display control method of liquid crystal display according to another embodiment of the present invention；
Fig. 9 shows the structure diagram of the display control unit of liquid crystal display according to an embodiment of the invention；
Figure 10 shows the structure diagram of the display control unit of liquid crystal display according to another embodiment of the present invention.
Embodiment
Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing
Reference numeral represent functionally the same or similar element.Although the various aspects of embodiment are shown in the drawings, remove
Non-specifically point out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in embodiment below.
It will be appreciated by those skilled in the art that without some details, the present invention can equally be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight the purport of the present invention.
Since VA types liquid crystal display easily produces color and the deviation of brightness when big visual angle is checked, make image fault.
But this defect of VA type liquid crystal displays is that design is intrinsic, can only go to improve as far as possible：Processing procedure can be improved, can also be improved
Type of drive.The embodiment of the present invention proposes a kind of simpler and effective method：By System on Chip/SoC (System on Chip,
SOC gamma (Gamma) curve) is distorted, improves big visual angle colour cast, especially colour of skin picture, positive effect.
Embodiment 1
Fig. 1 shows the flow chart of the display control method of liquid crystal display according to an embodiment of the invention.Such as Fig. 1 institutes
Show, the display control method of the liquid crystal display is mainly used for according to normal brightness change curve to each in the liquid crystal display
The corresponding brightness value of grey decision-making of pixel is adjusted as follows：
The corresponding brightness value of the first grey decision-making in the first grey-scale range, be adjusted to less than described the by step 101
One grey decision-making corresponding brightness value on normal brightness change curve.
Step 102, by the corresponding brightness value of the 3rd grey decision-making in middle grey-scale range be equal to described
Three grey decision-makings corresponding brightness value on the normal brightness change curve.
The corresponding brightness value of the second grey decision-making in the second grey-scale range, be adjusted to higher than described the by step 103
Two grey decision-makings corresponding brightness value on the normal brightness change curve.
In a kind of possible implementation, the grey-scale range of each pixel of liquid crystal display be typically from 0 to 255,
Basic, normal, high three grey-scale ranges can be divided into by 0 to 255：First grey-scale range is low grayscale, including from 0 to first threshold
Low grey decision-making；Middle grey-scale range is middle grayscale, including the middle grey decision-making from first threshold to second threshold；Second ash
Order range is high gray, including from second threshold to highest grayscale (such as be often considered 255 at present, but not limited to this) height ash
Rank is worth.Wherein, the grey decision-making in first grey-scale range is less than the grey decision-making in middle grey-scale range, in middle grey-scale range
Grey decision-making be less than the second grey-scale range in grey decision-making.Wherein, middle grey-scale range can not also be divided, but only will be from 0
It is low grayscale or high gray to 255 points, the specific division methods of grey-scale range is not limited in the embodiment of the present invention.
In the embodiment of the present invention not conditioning step 101 to step 103 sequential relationship.Preferably, can be according to grey decision-making
Order from low to high adjusts corresponding brightness value.Corresponded to it is of course also possible to be adjusted according to the order from grey decision-making from high to low
Brightness value, or be adjusted according to different grey-scale range segmentations.Each grey decision-making in the middle grey-scale range of step 102
Corresponding brightness value can also be defaulted as meeting normal brightness change curve, so can be omitted the setting action of step 102.
Specifically, in view of the perception characteristics of human eye, general liquid crystal display be required for by the grayscale of its each pixel with it is bright
The relation of degree is adjusted to the form of the gamma curve referring to following formula 1：
Lv=GrayγFormula 1
Wherein Lv is brightness, and Gray is grayscale.γ=2.2 are preferably taken, but are not limited to 2.2.
That is：Face some fixing point on display screen with luminance meter, display screen shows 0,1 ... 255 grey decision-makings
White picture, record brightness value at this time respectively.The solid line in one such as figure 2 above can be drawn.The observation effect of human eye at this time
Fruit is best, is illustrated in figure 4 picture during normal face.
If but luminance meter is deflected to an angle in the horizontal direction against display screen, simulation people from side viewing screen,
Larger offset can be occurred by measuring the curve come in aforementioned manners again, such as the thick dashed line in Fig. 2.Wherein, low gray-scale intensity is higher,
And high gray brightness is relatively low.The picture seen at this time on screen can observe whiting even colour cast.As shown in figure 5, from side 45
Picture during the observation display screen of degree angle can substantially whiten.
Gamma curve when big visual angle (i.e. brightness change curve) and reason when the reason for producing this phenomenon is big visual angle
Think that curve (normal brightness change curve) generates larger deviation, and this patent proposes a kind of turn-back gamma curve
Method.
It is mainly that the opposite of brightness changes since human eye perceives the change of brightness, if by ideal curve within the specific limits
Offset is smoothly carried out, human eye will not be notably perceived that difference, i.e., there are a scope that can be floated.Principle according to this, I
The curve that picture can receive when wishing to find a side view and face.
When facing, it is that Fig. 2 chain lines are (bent after optimization that current brightness change curve (standard gamma curve), which is distorted,
Line).By low gray-scale intensity carry out it is a degree of force down, and high gray brightness is suitably lifted, is illustrated in figure 3 low grayscale
The enlarged drawing of brightness change curve.Middle grayscale can not be dealt with.For example, low grayscale is 0 to 30 grayscale, middle grayscale is 31
To 240 grayscale, high gray is 241 to 255 grayscale.Wherein, low grayscale, middle grayscale, high ash are not limited in the embodiment of the present invention
The specific separation of rank, visual concrete condition are flexibly handled., can also be according to facing and side also, specific adjustment is how many to be advisable
Depending on picture improve situation make weigh.Total principle is preferentially to ensure that facing picture occurs without the problem of obvious, and big visual angle is drunk
Feelings improve, and picture cannot all occur significantly than stretching when making from positive visual angle to maximum visual angle (90 degree) change of perspective
Poor situation before gamma curve.
People has not felt as obvious brightness and color change when so facing.It is after stretching curve as shown in Figure 6
Picture when facing, does not change significantly with being compared before stretching.And because having been carried out reversely for curve of deviation during side view
Stretching, its colour cast problem can be improved.As shown in fig. 7, it is picture when stretching rear side viewing, than the side view before stretching
Figure has obvious improvement, and picture becomes apparent from, and color and brightness are also without the obvious distortion of generation.
The display control method of the liquid crystal display of the present embodiment, by distorting normal brightness change curve such as Gamma songs
Line, can improve the big visual angle colour cast of liquid crystal display especially VA types liquid crystal display, reduce distortion, it will be apparent that improve display
Effect.
Embodiment 2
Fig. 8 shows the flow chart of the display control method of liquid crystal display according to another embodiment of the present invention.Fig. 8 gets the bid
Number step identical with Fig. 1 has the function of identical, for simplicity, omits the detailed description to these steps.
As shown in figure 8, it is that the display control method of the liquid crystal display also wraps with the main distinction of a upper embodiment
Include：
Step 104, according to each pixel first grey-scale range, the middle grey-scale range and it is described second ash
Grey decision-making and brightness value in order range, generate at least one adjustment curve.As shown in Figures 2 and 3, curve is adjusted (in figure
Optimal Curve, optimization after curve) abscissa be grey decision-making, ordinate is brightness value；
Step 105, grey decision-making and brightness value in used adjustment curve, control under perpendicular alignmnet drive pattern
Liquid crystal display driving voltage.
Due to wanting emphasis to improve the display effect of the colour of skin under big visual angle, and red can play the colour of skin main influence, Ke Yi
The step of Gamma increases by a successive step red saturation scale afterwards is stretched, further to optimize display effect.Therefore, can in one kind
In the implementation of energy, the display control method of the liquid crystal display further includes：To each pixel in the liquid crystal display
Red saturation scale be adjusted.
The embodiment of the present invention can realize that the method than changing processing procedure is simple to save money in SOC by software；Can be in liquid
The factory of crystal display screen is set, and can also be set using the television factory of liquid crystal display；Several groups even can be set not
Same improvement curve (generating multiple adjustment curves), finally allows consumer to go to select by the hobby of oneself.
It is of course also possible to the gamma curve (adjusting curve) of these distortions is stored in the driving plate of liquid crystal display
Such as in Tcon (Timing Controller, time schedule controller) plate, or in other signal-processing boards.The present embodiment is not
Limit specifically by the parameter of these curves be stored in where, it is important that can subsequently use the Gamma of these distortions bent
The parameter of line controls the driving voltage of liquid crystal display, to improve colour cast of the liquid crystal display at big visual angle, so as to subtract
Few distortion, improves display effect.
Embodiment 3
Fig. 9 shows the structure diagram of the display control unit of liquid crystal display according to an embodiment of the invention.The display
Control device can be according to normal brightness change curve to each pixel in the liquid crystal display the corresponding brightness value of grey decision-making
It is adjusted, as shown in figure 9, the display control unit can mainly include：First adjustment module 11, for the first ash will to be in
The corresponding brightness value of the first grey decision-making in order range is adjusted in the normal brightness to change less than first grey decision-making bent
Corresponding brightness value on line；Second adjustment module 13, for the second grey decision-making in the second grey-scale range is corresponding bright
Angle value is adjusted to be higher than second grey decision-making corresponding brightness value on the normal brightness change curve；Wherein, described
Grey decision-making in one grey-scale range is less than the grey decision-making in second grey-scale range.
The display control unit of the present embodiment liquid crystal display, can distort normal brightness change curve, so as to improve liquid
The big visual angle colour cast of crystal display screen especially VA types liquid crystal display, reduces distortion, it will be apparent that improves display effect.Concrete principle
It may refer to the associated description of embodiment 1 with example.
Embodiment 4
Figure 10 shows the structure diagram of the display control unit of liquid crystal display according to another embodiment of the present invention.Figure 10
The middle label component identical with Fig. 9 has the function of identical, for simplicity, omits the detailed description to these components.
As shown in Figure 10, the main distinction with a upper embodiment is, each grayscale of each pixel in the liquid crystal display
Value is divided into three grey-scale ranges；Wherein, first grey-scale range includes the low grey decision-making from 0 to first threshold, middle grayscale
Scope includes the middle grey decision-making from first threshold to second threshold, and second grey-scale range is included from second threshold to highest
The high gray value of grayscale.
In a kind of possible implementation, the display control unit of the liquid crystal display further includes：
Setup module 15, for the corresponding brightness value of the 3rd grey decision-making in the middle grey-scale range to be arranged to
Equal to the 3rd grey decision-making on the normal brightness change curve corresponding brightness value.
In a kind of possible implementation, the display control unit of the liquid crystal display further includes：
Curve generation module 17, connects respectively with the described first adjustment module 11, second adjustment module 13 and setup module 15
Connect, for according to each pixel in first grey-scale range, the middle grey-scale range and second grey-scale range
Grey decision-making and brightness value, generate at least one adjustment curve；
Drive module 19, is connected with the curve generation module 17, for adjusting the grayscale in curve used by
Value and brightness value, control the driving voltage of the liquid crystal display under perpendicular alignmnet drive pattern.
In a kind of possible implementation, the display control unit of the liquid crystal display further includes：
Saturation degree adjusts module 20, and user adjusts the red saturation scale of each pixel in the liquid crystal display
It is whole.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
- A kind of 1. display control method of liquid crystal display, it is characterised in that including：The corresponding brightness value of the grey decision-making of each pixel in the liquid crystal display is carried out according to normal brightness change curve as follows Adjustment：The corresponding brightness value of the first grey decision-making in the first grey-scale range is adjusted to less than first grey decision-making in institute Corresponding brightness value on normal brightness change curve is stated, by the corresponding brightness value of the second grey decision-making in the second grey-scale range It is adjusted to be higher than second grey decision-making corresponding brightness value on the normal brightness change curve；Wherein, first ash Grey decision-making in order range is less than the grey decision-making in second grey-scale range；The red saturation scale of each pixel in the liquid crystal display is adjusted.
- 2. according to the method described in claim 1, it is characterized in that, each grey decision-making of each pixel divides in the liquid crystal display For three grey-scale ranges；Wherein, first grey-scale range includes the low grey decision-making from 0 to first threshold, and middle grey-scale range is included from the first threshold Being worth to the middle grey decision-making of second threshold, second grey-scale range includes the high gray value from second threshold to highest grayscale.
- 3. according to the method described in claim 2, it is characterized in that, according to normal brightness change curve to the liquid crystal display In the corresponding brightness value of grey decision-making of each pixel be adjusted, further include：The corresponding brightness value of the 3rd grey decision-making in the middle grey-scale range is equal to the 3rd grey decision-making The corresponding brightness value on the normal brightness change curve.
- 4. according to the method described in claim 3, it is characterized in that, further include：According to ash of each pixel in first grey-scale range, the middle grey-scale range and second grey-scale range Rank is worth and brightness value, generates at least one adjustment curve；According to the grey decision-making and brightness value in used adjustment curve, the liquid crystal display under perpendicular alignmnet drive pattern is controlled Driving voltage.
- 5. a kind of display control unit of liquid crystal display, it is characterised in that can be according to normal brightness change curve to described The corresponding brightness value of the grey decision-making of each pixel is adjusted in liquid crystal display, and described device includes：First adjustment module, for being adjusted to the corresponding brightness value of the first grey decision-making in the first grey-scale range to be less than institute State the first grey decision-making corresponding brightness value on the normal brightness change curve；Second adjustment module, for being adjusted to the corresponding brightness value of the second grey decision-making in the second grey-scale range to be higher than institute State the second grey decision-making corresponding brightness value on the normal brightness change curve；Wherein, the grey decision-making in first grey-scale range is less than the grey decision-making in second grey-scale range；Saturation degree adjusts module, for being adjusted to the red saturation scale of each pixel in the liquid crystal display.
- 6. device according to claim 5, it is characterised in that each grey decision-making of each pixel is divided into the liquid crystal display Three grey-scale ranges；Wherein, first grey-scale range includes the low grey decision-making from 0 to first threshold, middle grey-scale range bag The middle grey decision-making from first threshold to second threshold is included, second grey-scale range is included from second threshold to highest grayscale High gray value.
- 7. device according to claim 6, it is characterised in that further include：Setup module, for the corresponding brightness value of the 3rd grey decision-making in the middle grey-scale range to be equal to institute State the 3rd grey decision-making corresponding brightness value on the normal brightness change curve.
- 8. device according to claim 7, it is characterised in that further include：Curve generation module, is connected, for according to each respectively with the described first adjustment module, second adjustment module and setup module Grey decision-making and brightness of the pixel in first grey-scale range, the middle grey-scale range and second grey-scale range Value, generates at least one adjustment curve；Drive module, is connected with the curve generation module, for adjusting grey decision-making and brightness in curve used by Value, controls the driving voltage of the liquid crystal display under perpendicular alignmnet drive pattern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610027395.3A CN105528999B (en) | 2016-01-15 | 2016-01-15 | The display control method and device of liquid crystal display |
| PCT/CN2016/098661 WO2017121140A1 (en) | 2016-01-15 | 2016-09-12 | Display control method and device for liquid crystal display screen |
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| CN201610027395.3A CN105528999B (en) | 2016-01-15 | 2016-01-15 | The display control method and device of liquid crystal display |
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| CN105528999B (en) * | 2016-01-15 | 2018-05-08 | 合一智能科技（深圳）有限公司 | The display control method and device of liquid crystal display |
| CN107665694B (en) * | 2016-07-29 | 2020-06-30 | 上海和辉光电有限公司 | Brightness adjusting method and system of display device |
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| WO2020207169A1 (en) * | 2019-04-08 | 2020-10-15 | 重庆惠科金渝光电科技有限公司 | Driving method and driving system for display panel, and display device |
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| CN104751817B (en) * | 2015-04-01 | 2018-01-12 | 深圳市华星光电技术有限公司 | Drive circuit and driving method |
| CN104900203B (en) * | 2015-06-11 | 2017-05-17 | 深圳市华星光电技术有限公司 | Liquid-crystal panel and drive method therefor |
| CN104952410B (en) * | 2015-07-14 | 2017-07-11 | 深圳市华星光电技术有限公司 | The display ameliorative way and its equipment of liquid crystal panel |
| CN105528999B (en) * | 2016-01-15 | 2018-05-08 | 合一智能科技（深圳）有限公司 | The display control method and device of liquid crystal display |
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| WO2017121140A1 (en) | 2017-07-20 |
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