CN107978291A - A kind of method of adjustment of drive signal - Google Patents
A kind of method of adjustment of drive signal Download PDFInfo
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- CN107978291A CN107978291A CN201711477428.5A CN201711477428A CN107978291A CN 107978291 A CN107978291 A CN 107978291A CN 201711477428 A CN201711477428 A CN 201711477428A CN 107978291 A CN107978291 A CN 107978291A
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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
- G09G3/36—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 using liquid crystals
- G09G3/3607—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 using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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Abstract
The embodiment of the invention discloses a kind of method of adjustment of drive signal, in large scale liquid crystal display panel, it to include the following steps：Step 1, according to the impedance information of each cabling in the fan-out structure of data driving chip and/or scanning drive chip, the charge rate of each pixel in the liquid crystal display panel is obtained；Step 2, according to the charge rate of each pixel, the potential value of the data-signal of each pixel to inputting liquid crystal display panel is adjusted, so that the charging of all pixels of the liquid crystal display panel reaches homogeneity.According to an embodiment of the invention, the homogeneity of the charging of large scale liquid crystal display panel can be improved, lift display quality.
Description
Technical field
The present invention relates to display field, more particularly to a kind of method of adjustment of drive signal.
Background technology
In present LCD display plate technique development, large scale, high-resolution have become important trend.But in face
When plate designs, size is bigger, the difference increase of LCD display intralamellar part diverse location signal attenuation, relatively conventional liquid crystal
Show that panel homogeneity is worse.Meanwhile pixel charging time is short during the work of high-resolution panel, charge rate is relatively low, and different
The charge rate of position also has larger difference, and so all the display quality of liquid crystal display panel can be adversely affected.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of method of adjustment of drive signal, can improve big ruler
The homogeneity of the charging of very little liquid crystal display panel, lifts display quality.
In order to solve the above-mentioned technical problem, the one side of the embodiment of the present invention provides a kind of adjustment side of drive signal
Method, in large scale liquid crystal display panel, it to include the following steps：Step 1, driven according to data driving chip and/or scanning
The impedance information of each cabling in the fan-out structure of dynamic chip, obtains the charge rate of each pixel in the liquid crystal display panel；
Step 2, according to the charge rate of each pixel, the current potential of the data-signal of each pixel to inputting liquid crystal display panel
Value is adjusted, so that the charging of all pixels of the liquid crystal display panel reaches homogeneity.
Wherein, the step 1 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between data driving chip and liquid crystal panel data cable；
According to the impedance value of each cabling, determine that the data cable corresponding with the cabling connects in liquid crystal display panel
The charge rate of each pixel connect.
Wherein, according to the impedance value of each cabling, determine to be connected the row with the cabling in liquid crystal display panel
Each pixel charge rate the step of be specially：
The charge rate for the pixel in predetermined row that data cable corresponding with the cabling is connected is obtained, by the charge rate
The unified charge rate of each pixel connected as the data cable；Alternatively,
The charge rate for the pixel in multiple predetermined rows that data cable corresponding with the cabling is connected is obtained, is corresponded to
Multiple charge rates average value, the unified charge rate for each pixel that the average value is connected as the data cable.
Wherein, the step 2 specifically includes：
The unified charge rate of each pixel connected according to each data cable, is calculated defeated after being adjusted with following formula
Enter the potential value of the data-signal of the data cable；
Vdata=Vtar/X
Wherein, Vdata is the potential value for the data-signal that the data cable is inputted after adjusting；Vtar is to input the data cable
The target potential value of data-signal, X are the unified charge rate with each pixel on the data cable.
Wherein, the step 1 includes：
Obtain the impedance value of each cabling in each group of fan-out structure between data driving chip and liquid crystal panel data cable；
According to the impedance value of each cabling, determine that data corresponding with the cabling are connected each in liquid crystal display panel
The charge rate of pixel.
Wherein, the step 2 is specially：
The charge rate of each pixel connected according to each data cable, in the following manner adjustment input the potential value of each pixel：
Vdata =(Vtar-Vcom)/X+Vcom
Wherein, Vdata is the potential value for the data-signal that a certain pixel is inputted after adjusting；Vtar is the data for inputting the pixel
The target potential value of signal, X are the charge rate of the pixel, and Vcom is public electrode current potential.
Wherein, the step 1 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between scanning drive chip and liquid crystal panel scanning line；
According to the impedance value of each cabling, determine that scan line corresponding with the cabling in liquid crystal display panel is connected
The charge rate of each pixel.
Wherein, the step 2 is specially：
The charge rate of each pixel connected according to every scan line, in the following manner adjustment input the data-signal of each pixel
Potential value：
Vdata =Vtar/X
Wherein, Vdata is the potential value of the data-signal of each pixel of input after adjustment；Vtar is the data letter for inputting each pixel
Number target potential value, X is the corresponding charge rate of each pixel.Implement the embodiment of the present invention, have the advantages that：
In an embodiment of the present invention, by respectively being walked in the fan-out structure according to data driving chip and/or scanning drive chip
The impedance information of line, obtains the charge rate of each pixel in the liquid crystal display panel, then according to the charge rate of each pixel,
The potential value of the data-signal for each pixel for inputting liquid crystal display panel is adjusted, when improving liquid crystal display panel work
The charging homogeneity of pixel everywhere, so as to improve the display quality of liquid crystal display panel；
The method applied in the present invention, overcomes since the length of each cabling of fan-out structure is different, is connected to the number of each pixel
Length according to line, scan line is different, and the different deficiency of the charge rate of each pixel, can be lifted caused by caused impedance delay
The charging homogeneity of pixel everywhere when liquid crystal display panel works.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of main flow schematic diagram of one embodiment of the method for adjustment of drive signal provided by the invention；
Fig. 2 is the connection diagram of each fan-out structure in liquid crystal display panel of the present invention；
Fig. 3 is the cabling schematic diagram of fan-out structure in one group in Fig. 2；
Fig. 4 is the distribution of impedance schematic diagram of one group of fan-out structure in Fig. 3；
Fig. 5 shows the waveform signal of the data-signal for the pixel unit that three cablings with different impedances are connected in Fig. 3
Figure；
Fig. 6 shows the charge rate schematic diagram for the pixel that each cabling of one group of fan-out structure in Fig. 4 is connected；
Fig. 7 show it is adjusted in an example of the invention after each cabling current potential schematic diagram；
Fig. 8 shows the charge rate schematic diagram for the pixel that diverse location is connected on same data line；
Fig. 9 shows the data to inputting the pixel that diverse location is connected on same data line in another example of the invention
Current potential be adjusted after effect diagram；
Figure 10 is the sequence diagram of data-signal in Figure 11；
Figure 11, Figure 12 are respectively charge waveforms schematic diagram when pixel is in two kinds of refreshing frequencys in the liquid crystal display panel of face;
Figure 13 is the charge waveforms schematic diagram after the input signal of pixel in counter plate in further example of the present invention is modified.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clearly complete
Ground describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show the structure and/or processing step closely related with scheme according to the present invention, and eliminate little with relation of the present invention
Other details.
It refer to shown in Fig. 1, show that the one side of the embodiment of the present invention provided by the invention provides a kind of driving
The method of adjustment of signal, in large scale liquid crystal display panel, it to include the following steps：
Step S10, according to the impedance information of each cabling in the fan-out structure of data driving chip and/or scanning drive chip, is obtained
Obtain the charge rate of each pixel in the liquid crystal display panel；
Step S11, according to the charge rate of each pixel at least part pixel, each pixel to inputting liquid crystal display panel
The potential value of data-signal be adjusted so that the charging of all pixels of the liquid crystal display panel reaches homogeneity.
In order to illustrate present disclosure, it is following by from the three of different application scenarios embodiments come illustrate the present invention original
Manage and realize process in more detail.
First embodiment：
In this first embodiment, the step S10 is specially：
Step S100, obtains each group of fan-out structure between data driving chip and liquid crystal panel data cable（Fanout）In it is every
The impedance value of one cabling；
Step S101, according to the impedance value of each cabling, determines corresponding with the cabling described in liquid crystal display panel
The charge rate for each pixel that data cable is connected；
Specifically, in one example, the step S101 includes：Obtain the position that data cable corresponding with the cabling is connected
In the charge rate of the pixel in predetermined row, the unified charging for each pixel that the charge rate is connected as the data cable
Rate；
Alternatively, in another example, the step S101 includes：
The charge rate for the pixel in multiple predetermined rows that data cable corresponding with the cabling is connected is obtained, is corresponded to
Multiple charge rates average value, the unified charge rate for each pixel that the average value is connected as the data cable.
The S11 is specially：
The unified charge rate of each pixel connected according to each data cable, is calculated defeated after being adjusted with following formula
Enter the potential value of the data-signal of the data cable；
Vdata=Vtar/X
Wherein, Vdata is the potential value for the data-signal that the data cable is inputted after adjusting；Vtar is to input the data cable
The target potential value of data-signal, X are the unified charge rate with each pixel on the data cable.
In certain embodiments, potential value that can be using fan-out structure most in intermediate traces is as the input data cable
The target potential value of data-signal.
Specifically, below with a specific application example, come illustrate the application scenarios of the first embodiment of the present invention and
Realization principle.
In large-sized liquid crystal display panel, high-resolution has become the mainstream development trend of display panel.Wherein,
Fan-out structure（Fanout）It is the important connection circuit of connection driving IC and panel itself grid line/data cable (Gate/Data) line,
When panel size becomes larger, the width of Fanout cablings can also increase therewith.As shown in Fig. 2, show a kind of large-sized
The connection diagram of each fan-out structure in liquid crystal display panel, wherein at least one data driving chip 10 pass through fan-out structure 11
（Dotted portion in Fig. 2）It is attached with each data cable in liquid crystal display panel 12；It is understood that similarly, scanning is driven
Dynamic chip（It is not shown）And it is attached by each scan line of fan-out structure and liquid crystal display panel.
Specific cabling schematic diagram as shown one group of fan-out structure in Fig. 3；Wherein, in each group of fan-out structure 11,
Outermost 110 length of cabling is maximum, its corresponding occupied area is also the largest, therefore its resistance and parasitic capacitance are walked in the group
It is maximum in line（Rmax,Cmax）.Correspondingly, middle cabling 112, since length is short, its area occupied is small, therefore its resistance and post
Raw capacitance is minimum in this group of cabling（Rmin,Cmin）.
It is understood that the impedance of each cabling can be calculated by formula τ=RC, the impedance of one group of fan-out structure
Distribution situation is as shown in figure 4, line impedence minimum is walked in centre position, and line impedence maximum is walked in both sides, substantially in a parabola
Shape.
And each cabling of each fan-out structure can be connected with a data line in liquid crystal display panel, it is possible to understand that
, when data-signal is by the small cabling of fan-out structure centre position impedance, its RC delay（RC Delay）It is small, and pass through
When crossing the big cabling of impedance of fan-out structure both sides, its RC delay sieve is big, so can produce unfavorable shadow to the charging of pixel
Ring, as shown in figure 5, showing the waveform of the data-signal for the pixel unit that three cablings with different RC delays are connected
Schematic diagram.There it can be seen that with the increase of RC delay, its charging effect can be deteriorated.
Specifically, in one example, the pixel in corresponding fan-out structure centre position, charge rate can often reach 100%
Left and right, and the pixel charge rate for corresponding to fan-out structure both sides cabling then may be decreased near 90%, as shown in fig. 6, showing one
The charge rate schematic diagram for the pixel that each cabling of group fan-out structure is connected.
It is understood that the impedance of the different cabling of above-mentioned fan-out structure can the homogeneity that shows of counter plate cause very not
The influence of profit.When the fan-out structure both sides cabling resistance difference of a panel is larger, i.e. fan-out structure both sides cabling centre position
When corresponding pixel and the corresponding pixel charge rate of marginal position differ greatly, if to input the current potential of the data cable without
Adjustment, it will cause the problems such as the colour cast of diverse location brightness disproportionation or diverse location.
In the embodiment of the present invention, the data of different pieces of information line in liquid crystal display panel are input to each fan-out structure
Signal is corrected, and is illustrated with the example in Fig. 6.Assuming that to write 14V into pixel with needs（Target potential）'s
Exemplified by voltage signal, it is in Fig. 6 as a result, fan-out structure centre position pixel charge rate be close to 100%, therefore these
The corresponding data-signal in region is set to 14V, and from the centre position of fan-out structure to both sides, the charge rate of pixel gradually drops
It is low, it is assumed that as soon as the charge rate for each pixel that the data cable corresponding to a cabling is connected is X, then voltage data signal is corresponding
It is adjusted to 14/X, such as corresponding to the corresponding pixel charge rate of the outermost cabling of fan-out structure in Fig. 6 is 88%, then accordingly
Data-signal is just adjusted to 14/0.88=15.9V, other cablings are with this similar process；In this way can be so that whole
The pixel that data cable corresponding to fan-out structure cabling is connected can write correct data-signal, avoid the occurrence of brightness disproportionation
Mura and the problems such as diverse location colour cast.Fig. 7 shows the signal for the current potential that each cabling after being adjusted in an example is exported
Figure.
It is understood that in the above example, the charge rate for each pixel that each data cable is connected is with a system
One charge rate is calculated.In real process, in some instances, number corresponding with each cabling can be obtained ahead of time
The charge rate of the pixel in predetermined row connected according to line, each picture that the charge rate is connected as the data cable
The unified charge rate of element；For example, the charge rate of a pixel of the top side that each data cable is connected is as the data cable
The unified charge rate of all pixels connected, then obtained by formula Vdata=Vtar/X it is adjusted after input described in
The potential value of the data-signal of data cable.
And in other examples, can also be obtained ahead of time that the corresponding data cable of each cabling connected positioned at multiple pre-
Determine the charge rate of the pixel on row（For example, selection takes the five-element）, the average value of corresponding multiple charge rates is obtained, will be described average
The unified charge rate for each pixel that value is connected as the data cable.Then the input by formula calculating acquisition after adjusted
The potential value of the data-signal of the data cable.
Second embodiment：
In this second embodiment, the step S10 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between data driving chip and liquid crystal panel data cable；
According to the impedance value of each cabling, determine that data corresponding with the cabling are connected each in liquid crystal display panel
The charge rate of pixel.
The step S11 is specially：
The charge rate of each pixel connected according to each data cable, in the following manner adjustment input the potential value of each pixel：
Vdata =(Vtar-Vcom)/X+Vcom
Wherein, Vdata is the potential value for the data-signal that a certain pixel is inputted after adjusting；Vtar is the data for inputting the pixel
The target potential value of signal, X are the charge rate of the pixel, and Vcom is public electrode current potential.
Specifically, below with a specific application example, come illustrate the application scenarios of the second embodiment of the present invention and
Realization principle.
It is understood that in addition to fan-out structure cabling can cause Display panel inequality, scan line, data cable is in itself
Also the decay of signal can be produced, so as to cause the charge rate of panel diverse location to differ greatly, is particularly compared in panel size
Greatly, when cabling is long, this problem is more obvious.
As shown in figure 8, show the charge rate schematic diagram for the pixel that diverse location is connected on same data line；Data
Signal is by data driving chip（Source IC）Provide, in the panel close to data driving chip side, data-signal and data
The current potential of data-signal given by driving chip is essentially identical, and the pixel in this region can reach the high charge rate of comparison,
Close to 100% or so（A points position in such as figure）；In the position away from data driving chip, due to RC delay（RC Delay）'s
Reason, data-signal transmits on the data line to decay, its pixel charge rate connected can be gradually reduced, such as schemed
The charge rate of the pixel of middle c points position can be reduced to 90% or so.
Fig. 9 shows second embodiment of the present invention, for the difference of pixel charge rate caused by data cable, similarly
The data-signal that can be exported to data driving chip is modified, and modification method and one embodiment are similar, for example, pixel
When the target data signal for needing to write is V, when the charge rate of somewhere pixel is X, then the data-signal at this is modified to V/X.
Fig. 9 is the result after the pixel charge rate in Fig. 8 is modified.Assuming that different positions needs what is write
The voltage difference of data-signal Vdata and public electrode current potential Vcom is 7V（Target potential is poor）When, close to data driving chip one
Side, since the charge rate of pixel is close to 100%, need not be modified data-signal, data are located away from when pixel
After driving chip, charge rate is begun to decline, such as in pixel charge rate is 90% position, the data that data driving chip is exported
Signal is adjusted to Vdata '-Vcom=7V/90%=7.78V；So as to pass through the current potential of the data-signal to inputting diverse location pixel
It is adjusted, can makes after the signal attenuation by data cable, the signal for being actually written into each pixel is consistent substantially,
So as to avoid the problem that the Display panel that is brought since the RC Delay of data cable are excessive is uneven.
Figure 10 is the sequence diagram of data-signal in Fig. 9, includes the situation of both positive and negative polarity.It is understood that remove
Outside data cable, the uneven problem of display that the RC Delay of scan line are brought can also be solved by similar method.
3rd embodiment：
In the 3rd embodiment, the step S10 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between scanning drive chip and liquid crystal panel scanning line；
According to the impedance value of each cabling, determine that scan line corresponding with the cabling in liquid crystal display panel is connected
The charge rate of each pixel.
The step S11 is specially：
The charge rate of each pixel connected according to every scan line, in the following manner adjustment input the data-signal of each pixel
Potential value：
Vdata =Vtar/X
Wherein, Vdata is the potential value of the data-signal of each pixel of input after adjustment；Vtar is the data letter for inputting each pixel
Number target potential value, X is the corresponding charge rate of each pixel.
Specifically, below with a specific application example, come illustrate the application scenarios of the third embodiment of the present invention and
Realization principle.
Except panel size increases, RC Delay are effectively caused outside the problem of pixel charge rate is insufficient, the refreshing of panel
Frequency improves the charge rate decline that will also result in pixel.
By taking Figure 11 and Figure 12 as an example, it is in charge waveforms signal during two kinds of refreshing frequencys for pixel in display panel
Figure.It is 7.5us when the charging interval for the every one-row pixels of panel that refreshing frequency is 60Hz, wherein a solid line illustrates pixel electricity
Electrode potential is with the situation of change of time, from the figure, it can be seen that when gate line is opened, pixel electrode current potential be with
The passage of time slowly raises, finally close to the current potential of data cable.
After the refreshing frequency of panel is promoted to 120Hz, the charging interval per one-row pixels will reduce 1/2, i.e.,
3.75us, here by taking the voltage signal for writing 14V as an example, after the charging interval halves, the charge rate of the pixel is just reduced to
85%, the voltage for being actually written into pixel is 11.9V.
As shown in figure 13, it is the charge waveforms schematic diagram after the input signal of pixel in counter plate is modified.In picture
In the case of plain undercharge, the data-signal exported to data driving chip is adjusted according to charge rate.Such as need
The voltage signal of write-in is 14V（Target potential value）, in the case that charge rate is 85%, the data-signal of output is modified to 14/
0.85=16.5V, can thus write the 14V voltage signals of needs within the pixel, avoid refreshing frequency and improve what is brought
Undercharge problem.
Implement the present invention, there is following beneficial effect：
In an embodiment of the present invention, by the charge rate at least part pixel that the liquid crystal display panel is obtained ahead of time；So
Afterwards according to the charge rate of each pixel at least part pixel, the data-signal of each pixel to inputting liquid crystal display panel
Potential value be adjusted, the charging homogeneity of pixel everywhere when improving liquid crystal display panel work, so as to improve liquid crystal
Show the display quality of panel.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
Above content is that a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (8)
1. a kind of method of adjustment of drive signal, in large scale liquid crystal display panel, it is characterised in that including following step
Suddenly：
Step 1, according to the impedance information of each cabling in the fan-out structure of data driving chip and/or scanning drive chip, obtain
The charge rate of each pixel in the liquid crystal display panel；
Step 2, according to the charge rate of each pixel, the current potential of the data-signal of each pixel to inputting liquid crystal display panel
Value is adjusted, so that the charging of all pixels of the liquid crystal display panel reaches homogeneity.
2. the method as described in claim 1, it is characterised in that the step 1 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between data driving chip and liquid crystal panel data cable；
According to the impedance value of each cabling, determine that the data cable corresponding with the cabling connects in liquid crystal display panel
The charge rate of each pixel connect.
3. method as claimed in claim 2, it is characterised in that according to the impedance value of each cabling, determine liquid crystal display
The step of being connected the charge rate of each pixel of the row in panel with the cabling includes：
The charge rate for the pixel in predetermined row that data cable corresponding with the cabling is connected is obtained, by the charge rate
The unified charge rate of each pixel connected as the data cable；Or
The charge rate for the pixel in multiple predetermined rows that data cable corresponding with the cabling is connected is obtained, is corresponded to
Multiple charge rates average value, the unified charge rate for each pixel that the average value is connected as the data cable.
4. method as claimed in claim 3, it is characterised in that the step 2 specifically includes：
The unified charge rate of each pixel connected according to each data cable, is calculated defeated after being adjusted with following formula
Enter the potential value of the data-signal of the data cable；
Vdata=Vtar/X
Wherein, Vdata is the potential value for the data-signal that the data cable is inputted after adjusting；Vtar is to input the data cable
The target potential value of data-signal, X are the unified charge rate with each pixel on the data cable.
5. the method as described in claim 1, it is characterised in that the step 1 includes：
Obtain the impedance value of each cabling in each group of fan-out structure between data driving chip and liquid crystal panel data cable；
According to the impedance value of each cabling, determine that data corresponding with the cabling are connected each in liquid crystal display panel
The charge rate of pixel.
6. method as claimed in claim 5, it is characterised in that the step 2 is specially：
The charge rate of each pixel connected according to each data cable, in the following manner adjustment input the potential value of each pixel：
Vdata =(Vtar-Vcom)/X+Vcom
Wherein, Vdata is the potential value for the data-signal that a certain pixel is inputted after adjusting；Vtar is the data for inputting the pixel
The target potential value of signal, X are the charge rate of the pixel, and Vcom is public electrode current potential.
7. the method as described in claim 1, it is characterised in that the step 1 is specially：
Obtain the impedance value of each cabling in each group of fan-out structure between scanning drive chip and liquid crystal panel scanning line；
According to the impedance value of each cabling, determine that scan line corresponding with the cabling in liquid crystal display panel is connected
The charge rate of each pixel.
8. the method for claim 7, it is characterised in that the step 2 is specially：
The charge rate of each pixel connected according to every scan line, in the following manner adjustment input the data-signal of each pixel
Potential value：
Vdata =Vtar/X
Wherein, Vdata is the potential value of the data-signal of each pixel of input after adjustment；Vtar is the data letter for inputting each pixel
Number target potential value, X is the corresponding charge rate of each pixel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816110A (en) * | 2020-07-06 | 2020-10-23 | 深圳市华星光电半导体显示技术有限公司 | Driving method of display panel |
| CN111883038A (en) * | 2020-07-28 | 2020-11-03 | 惠科股份有限公司 | Method for determining gray-scale value of pixel, display panel and computer-readable storage medium |
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