CN110364111A - Display panel pixel compensation method and compensation device - Google Patents
Display panel pixel compensation method and compensation device Download PDFInfo
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- CN110364111A CN110364111A CN201910812332.2A CN201910812332A CN110364111A CN 110364111 A CN110364111 A CN 110364111A CN 201910812332 A CN201910812332 A CN 201910812332A CN 110364111 A CN110364111 A CN 110364111A
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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Abstract
The present invention relates to field of display technology, it is proposed a kind of display panel pixel compensation method, the display panel includes multiple sub-viewing areas, this method comprises: obtaining display picture data, and the gradation data of each color sub-pixels in each sub-viewing areas is obtained according to the display picture data；The average current of the sub-viewing areas is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas；The grey level compensation data of the sub-viewing areas are obtained according to the average current of the sub-viewing areas；The grey level compensation data of each sub-pixel are calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas.The pixel compensation method can be shown unevenly to avoid display panel as sub-pixel unit as caused by power supply line pressure drop.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display panel pixel compensation method and compensation devices.
Background technique
Display panel includes multiple sub-pixel units of array distribution, and each sub-pixel unit includes luminous for its
Pixel-driving circuit.Pixel-driving circuit generally provides power supply from power IC (power circuit) to pixel-driving circuit.
In the related technology, power IC (power circuit) is generally positioned at the side of display panel, the power IC (power supply
Circuit) it is connect by a power supply line with the pixel-driving circuit for being located at same row, for providing driving electricity to the column pixel unit
Source.However, due to power supply line have pressure drop, so as to cause far from power IC (power circuit) side pixel unit shine compared with
Secretly.
It should be noted that the information in the invention of above-mentioned background technology part is only used for reinforcing the reason to background of the invention
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The purpose of the present invention is to provide a display panel pixel compensation method and compensation devices.The display panel pixel is mended
It is uneven that compensation method is able to solve the display as caused by power supply line pressure drop in the related technology.
Other characteristics and advantages of the invention will be apparent from by the following detailed description, or partially by the present invention
Practice and acquistion.
According to an aspect of the present invention, a kind of display panel pixel compensation method is provided, the display panel includes more
A sub-viewing areas, this method comprises:
Display picture data is obtained, and each color in each sub-viewing areas is obtained according to the display picture data
The gradation data of pixel；
The average current of the sub-viewing areas is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas；
The grey level compensation data of the sub-viewing areas are obtained according to the average current of the sub-viewing areas；
The gray scale of each sub-pixel is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas
Offset data.
In a kind of exemplary embodiment of the disclosure, obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
Take the average current of the sub-viewing areas, comprising:
The average ash of each color sub-pixels in each sub-viewing areas is obtained according to the gradation data of each color sub-pixels
Degree；
The display panel is obtained under 255 gray scale display states, the normal brightness of each sub-viewing areas；
According to the average gray of each color sub-pixels in each sub-viewing areas, the sub- display is obtained in conjunction with the normal brightness
The brightness of each color sub-pixels in region；
According to the luminance acquisition of each color sub-pixels in the sub-viewing areas viewing area different colours sub-pixel unit
Average current；
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas.
In a kind of exemplary embodiment of the disclosure, according to the average gray of each color sub-pixels in each sub-viewing areas, knot
Close the brightness that the normal brightness obtains each color sub-pixels in the sub-viewing areas, comprising:
According to formulaCalculate the brightness of the sub-viewing areas；
Wherein, L indicates the brightness of each color sub-pixels, and L255 indicates normal brightness, and g indicates the average gray of sub- viewing area
Value, γ indicate gamma value.
It, should according to the luminance acquisition of each color sub-pixels in the sub-viewing areas in a kind of exemplary embodiment of the disclosure
The average current of viewing area different colours sub-pixel unit, comprising:
The average current of each color sub-pixels unit is calculated according to formula L=β * Ip；
Wherein, L indicates the brightness of each color sub-pixels, and β indicates the conversion of the brightness of different colours sub-pixel unit and electric current
Coefficient, Ip indicate the average current of sub-pixel unit.
In a kind of exemplary embodiment of the disclosure, obtained according to the average current of each color sub-pixels in the sub-viewing areas
Take the average current of the sub-viewing areas, comprising:
According to formula:Calculate the average current of the sub-viewing areas；
Wherein, IbIndicate that the average current of display area, Rn indicate different colours sub-pixel unit to the contribution system of electric current
Number, Ipn indicate the average current of different colours sub-pixel unit.
In a kind of exemplary embodiment of the disclosure, which is obtained according to the average current of the sub-viewing areas
Grey level compensation data, comprising:
The accumulated current of the sub-viewing areas is obtained according to the average current of the sub-viewing areas；
The accumulation pressure drop of the sub-viewing areas is obtained according to the accumulated current of the sub-viewing areas；
The luminance compensation coefficient of the sub-viewing areas is obtained according to the accumulation pressure drop of the sub-viewing areas；
The luminance compensation data of the sub-viewing areas are obtained according to the luminance compensation coefficient of the sub-viewing areas；
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas.
In a kind of exemplary embodiment of the disclosure, which is obtained according to the accumulation pressure drop of the sub-viewing areas
Luminance compensation coefficient, comprising:
According to formulaCalculate the luminance compensation system of the sub-viewing areas
Number；
Wherein, G indicates that the luminance compensation coefficient of sub-viewing areas, V indicate the accumulation pressure drop of sub-viewing areas, and Vmax is indicated
The maximum pressure drop of display panel, Vmin indicate the minimum pressure drop of display panel, and Gmax indicates the maximum brightness compensation of display panel
Coefficient, Gmin indicate the minimum brightness penalty coefficient of display panel.
In a kind of exemplary embodiment of the disclosure, which is obtained according to the gain compensation factor of the sub-viewing areas
The luminance compensation data in region, comprising: the luminance compensation data of sub-viewing areas are calculated according to formula Lc=Lo*G；
Wherein, Lc indicates the luminance compensation data of sub-viewing areas, and Lo indicates the brightness of sub-viewing areas, and G indicates that son is aobvious
Show the luminance compensation coefficient in region；
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas, comprising:
According to formulaCalculate the grey level compensation data of the sub-viewing areas；
Wherein, Lc indicates the luminance compensation data of the sub- viewing area, and L255 indicates normal brightness, and gc indicates sub- viewing area
Grey level compensation data, γ indicate gamma value.
In a kind of exemplary embodiment of the disclosure, the grey level compensation data of the sub-viewing areas utilize bilinearity differential technique
Calculate the grey level compensation data of each sub-pixel, comprising:
The grey level compensation data for obtaining the position of form center of the sub-viewing areas are the grey level compensation number of the sub-viewing areas
According to；
Four are calculated by bilinearity differential technique according to the grey level compensation data of four sub-viewing areas position of form center
The grey level compensation data of the sub-viewing areas intersection；
The sub- viewing area is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas intersection
The grey level compensation data of each sub-pixel in domain.
According to an aspect of the present invention, a kind of display panel pixel compensation device is provided, the display panel includes more
A sub-viewing areas, the device include: receiving unit, first processing units, the second processing unit, third processing unit, the 4th
Processing unit.Receiving unit, for obtaining display picture data；First processing units, for according to the display picture data
Obtain the gradation data of each color sub-pixels in each sub-viewing areas；The second processing unit, for according to the sub- display
The gradation data of each color sub-pixels obtains the average current of the sub-viewing areas in region；Third processing unit is used for basis
The average current of the sub-viewing areas obtains the grey level compensation data of the sub-viewing areas；Fourth processing unit is used for basis
The grey level compensation data of the sub-viewing areas calculate the grey level compensation data of each sub-pixel using bilinearity differential technique.
The disclosure proposes a kind of display panel pixel compensation method, and the display panel includes multiple sub-viewing areas, should
Method includes: this method comprises: obtaining display picture data, and obtain each sub- viewing area according to the display picture data
The gradation data of each color sub-pixels in domain；The son is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
The average current of display area；The grey level compensation number of the sub-viewing areas is obtained according to the average current of the sub-viewing areas
According to；The grey level compensation number of each sub-pixel is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas
According to.The pixel compensation method can show unevenness as sub-pixel unit to avoid display panel as caused by power supply line pressure drop
It is even.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.It should be evident that the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow chart of exemplary embodiment of disclosure display panel pixel compensation method；
Fig. 2 is the structural representation of display panel in a kind of exemplary embodiment of disclosure display panel pixel compensation method
Figure；
Fig. 3 be a kind of exemplary embodiment of disclosure display panel pixel compensation method in same row sub-viewing areas etc.
Imitate circuit diagram；
Fig. 4 is the structural representation of display panel in a kind of exemplary embodiment of disclosure display panel pixel compensation method
Figure；
Fig. 5 is a kind of structural schematic diagram of exemplary embodiment of disclosure display panel pixel compensation device.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms
It applies, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the present invention will more comprehensively and
Completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical appended drawing reference indicates in figure
Same or similar structure, thus the detailed description that them will be omitted.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the device overturning of icon, the component described in "upper" will
As the component in "lower".Term of other relativities, such as "high" " low " "top" "bottom" " left side " " right side " etc. are also made to have similar
Meaning.When certain structure is at other structures "upper", it is possible to refer to that certain structural integrity is formed in other structures, or refer to certain structure
It is " direct " to be arranged in other structures, or refer to that certain structure is arranged in other structures by the way that another structure is " indirect ".
Term "one", " one ", " described " to indicate there are one or more elements/component part/etc.；Term " packet
Include " and " having " to indicate the open meaning being included and refer to that the element/component part/in addition to listing waits it
Outside also may be present other element/component part/etc..
The present exemplary embodiment provides a kind of display panel pixel compensation method, and the display panel includes multiple sub- displays
Region, as shown in Figure 1, being a kind of flow chart of exemplary embodiment of disclosure display panel pixel compensation method, this method packet
It includes:
Step S1: display picture data is obtained, and is obtained in each sub-viewing areas according to the display picture data
The gradation data of each color sub-pixels；
Step S2: the flat of the sub-viewing areas is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
Equal electric current；
Step S3: the grey level compensation data of the sub-viewing areas are obtained according to the average current of the sub-viewing areas；
Step S4: each sub-pixel is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas
Grey level compensation data.
The disclosure proposes a kind of display panel pixel compensation method, and the display panel includes multiple sub-viewing areas, should
Method includes: this method comprises: obtaining display picture data, and obtain each sub- viewing area according to the display picture data
The gradation data of each color sub-pixels in domain；The son is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
The average current of display area；The grey level compensation number of the sub-viewing areas is obtained according to the average current of the sub-viewing areas
According to；The grey level compensation number of each sub-pixel is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas
According to.The pixel compensation method can show unevenness as sub-pixel unit to avoid display panel as caused by power supply line pressure drop
It is even.
Above-mentioned steps are described in detail below:
Step S1: display picture data is obtained, and is obtained in each sub-viewing areas according to the display picture data
The gradation data of each color sub-pixels.Display picture data may include the gradation data of each sub-pixel unit, the grey
According to the gray scale that can be through the 8bit 0-255 indicated.
Step S2: the flat of the sub-viewing areas is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
Equal electric current.
In the present exemplary embodiment, it is aobvious which is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas
The average current for showing region may include:
The average ash of each color sub-pixels in each sub-viewing areas is obtained according to the gradation data of each color sub-pixels
Degree；
The display panel is obtained under 255 gray scale display states, the normal brightness of each sub-viewing areas；
According to the average gray of each color sub-pixels in each sub-viewing areas, the sub- display is obtained in conjunction with the normal brightness
The brightness of each color sub-pixels in region；
According to the luminance acquisition of each color sub-pixels in the sub-viewing areas viewing area different colours sub-pixel unit
Average current；
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas.
Wherein, the flat of each color sub-pixels in each sub-viewing areas is obtained according to the gradation data of each color sub-pixels
Equal gray scale may include: to carry out calculating of averaging to the gray scale of same color sub-pixel in each sub-viewing areas, to obtain
The average gray of the color sub-pixels.
The display panel is obtained under 255 gray scale display states, the normal brightness of each sub-viewing areas can be with
It include: the gray scale for controlling the display panel and showing 255；Then the brightness of each sub-viewing areas is detected by way of measurement.
According to the average gray of each color sub-pixels in each sub-viewing areas, the sub- display is obtained in conjunction with the normal brightness
The brightness of each color sub-pixels in region may include:
According to formulaCalculate the brightness of the sub-viewing areas；Wherein, L indicates the bright of each color sub-pixels
Degree, L255 indicate normal brightness, and g indicates that the average gray value of sub- viewing area, γ indicate gamma value.
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas,
It may include: the average current that each color sub-pixels unit is calculated according to formula L=β * Ip；Wherein, L indicates each color sub-pixels
Brightness, β indicate the brightness of different colours sub-pixel unit and electric current transformation ratio, Ip indicate sub-pixel unit average electricity
Stream.
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas,
May include:
According to formula:Calculate the average current of the sub-viewing areas；Wherein, IbIndicate display area
Average current, Rn indicates different colours sub-pixel unit to the contribution coefficient of total current, and Ipn indicates different colours sub-pixel list
The average current of member.For example, the display panel may include three kinds of color sub-pixels unit Rs, G, B, in a certain sub-viewing areas
The average current of interior R sub-pixel is Ipr, and the average current of G sub-pixel is Ipg, and the average current of B sub-pixel is Ipb；R picture
Element is Rr to the contribution coefficient of total current, and G sub-pixel is Rg, contribution of the B sub-pixel to total current to the contribution coefficient of total current
Coefficient is Rb.Then, the average current of the sub-viewing areas is Ib=Ipr*Rr+Ipg*Rg+Ipb*Rb.
Step S3: the grey level compensation data of the sub-viewing areas are obtained according to the average current of the sub-viewing areas.
In the present exemplary embodiment, mended according to the gray scale that the average current of the sub-viewing areas obtains the sub-viewing areas
Data are repaid, may include:
The accumulated current of the sub-viewing areas is obtained according to the average current of the sub-viewing areas；
The accumulation pressure drop of the sub-viewing areas is obtained according to the accumulated current of the sub-viewing areas；
The luminance compensation coefficient of the sub-viewing areas is obtained according to the accumulation pressure drop of the sub-viewing areas；
The luminance compensation data of the sub-viewing areas are obtained according to the luminance compensation coefficient of the sub-viewing areas；
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas.
The accumulated current that the sub-viewing areas is obtained according to the average current of the sub-viewing areas may include: such as Fig. 2
It is shown, it is the structural schematic diagram of display panel in a kind of exemplary embodiment of disclosure display panel pixel compensation method.Originally show
In example property embodiment, the display area of display panel can be divided into 5*3 rectangle sub-viewing areas 11,12,13,21 ... 35.
As shown in figure 3, in a kind of exemplary embodiment of the disclosure display panel pixel compensation method same row sub-viewing areas etc.
Imitate circuit diagram.Wherein, R indicates the equivalent resistance of each sub-viewing areas.Each sub-viewing areas in the present exemplary embodiment
Size can be identical, so that the equivalent resistance of each sub-viewing areas is R.It should be understood that exemplary at other
In embodiment, the size of each sub-viewing areas can not also be identical.In Fig. 3, Ib1, Ib2, Ib3, Ib4, Ib5 are respectively that son is aobvious
Show the average current in region 11,21,31,41,51.It is corresponding, Ia1, Ia2, Ia3, Ia4, Ia5 be respectively sub-viewing areas 11,
21,31,41,51 accumulated current.Ia1=Ib1+Ib2+Ib3+Ib4+Ib5, Ia2=Ib2+Ib3+Ib4+Ib5, Ia3=Ib3+
Ib4+Ib5, Ia4=Ib4+Ib5, Ia5=Ib5.
The accumulation pressure drop that the sub-viewing areas is obtained according to the accumulated current of the sub-viewing areas, may include: such as Fig. 3
It is shown, the accumulation pressure drop V1=Ia1*R of sub-viewing areas 11, the accumulation pressure drop V2=Ia1*R+Ia2*R of sub-viewing areas 21, son
The accumulation pressure drop V3=Ia1*R+Ia2*R+Ia3*R of display area 31, the accumulation pressure drop V4=Ia1*R+ of sub-viewing areas 41
Ia2*R+Ia3*R+Ia4*R, the accumulation pressure drop V5=Ia1*R+Ia2*R+Ia3*R+Ia4*R+Ia5*R of sub-viewing areas 51.
The luminance compensation coefficient that the sub-viewing areas is obtained according to the accumulation pressure drop of the sub-viewing areas may include:
According to formulaCalculate the luminance compensation system of the sub-viewing areas
Number；Wherein, G indicates that the luminance compensation coefficient of sub-viewing areas, V indicate the accumulation pressure drop of sub-viewing areas, and Vmax indicates display
The maximum pressure drop of panel, Vmin indicate the minimum pressure drop of display panel, and Gmax indicates the maximum brightness penalty coefficient of display panel,
The minimum brightness penalty coefficient of Gmin expression display panel.In the present exemplary embodiment, Vmax, Vmin can pass through entity measuring
Or the mode of simulation test obtains.Gmax, Gmin can be configured according to the actual situation.
The luminance compensation data that the sub-viewing areas is obtained according to the gain compensation factor of the sub-viewing areas, can wrap
It includes:
The luminance compensation data of sub-viewing areas are calculated according to formula Lc=Lo*G；Wherein, Lc indicates sub-viewing areas
Luminance compensation data, Lo indicate the brightness of sub-viewing areas, and G indicates the luminance compensation coefficient of sub-viewing areas.
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas, can wrap
It includes:
According to formulaCalculate the grey level compensation data of the sub-viewing areas；
Wherein, Lc indicates the luminance compensation data of the sub- viewing area, and L255 indicates normal brightness, and gc indicates sub- viewing area
Grey level compensation data, γ indicate gamma value.
In a kind of exemplary embodiment of the disclosure, the grey level compensation data of the sub-viewing areas utilize bilinearity differential technique
The grey level compensation data for calculating each sub-pixel may include:
As shown in figure 4, for the knot of display panel in a kind of exemplary embodiment of disclosure display panel pixel compensation method
Structure schematic diagram.Fig. 4 is illustrated by taking 4 adjacent sub-viewing areas as an example, as shown in figure 4, this method obtains the sub- viewing area
The grey level compensation data of the position of form center (solid black dot) in domain are the grey level compensation data of the sub-viewing areas；According to four
The grey level compensation data of the sub-viewing areas position of form center calculate four sub-viewing areas by bilinearity differential technique and hand over
The grey level compensation data of (soft dot) at boundary.Similarly, other boundaries can be obtained by other adjacent sub-viewing areas
The grey level compensation data of point.Being calculated according to the grey level compensation data of the sub-viewing areas intersection using bilinearity differential technique should
The grey level compensation data of each sub-pixel in sub-viewing areas.
The present exemplary embodiment also provides a kind of display panel pixel compensation device, as shown in figure 5, being disclosure display surface
A kind of structural schematic diagram of exemplary embodiment of plate pixel compensation device.The display panel includes multiple sub-viewing areas, should
Device includes: receiving unit 1, first processing units 2, the second processing unit 3, third processing unit 4, fourth processing unit 5.It connects
Unit is received, for obtaining display picture data；First processing units, for obtaining each son according to the display picture data
The gradation data of each color sub-pixels in display area；The second processing unit, for according to each color in the sub-viewing areas
The gradation data of sub-pixel obtains the average current of the sub-viewing areas；Third processing unit, for according to the sub- viewing area
The average current in domain obtains the grey level compensation data of the sub-viewing areas；Fourth processing unit, for according to the sub- viewing area
The grey level compensation data in domain calculate the grey level compensation data of each sub-pixel using bilinearity differential technique.
The display panel pixel compensation device that the disclosure provides has identical with above-mentioned display panel pixel compensation method
Technical characteristic and working principle, above content be described in detail, details are not described herein again.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
His embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Adaptive change follow the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure or
Conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by claim
It points out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the attached claims.
Claims (10)
1. a kind of display panel pixel compensation method, the display panel includes multiple sub-viewing areas, which is characterized in that packet
It includes:
Display picture data is obtained, and each color sub-pixels in each sub-viewing areas are obtained according to the display picture data
Gradation data；
The average current of the sub-viewing areas is obtained according to the gradation data of each color sub-pixels in the sub-viewing areas；
The grey level compensation data of the sub-viewing areas are obtained according to the average current of the sub-viewing areas；
The grey level compensation of each sub-pixel is calculated using bilinearity differential technique according to the grey level compensation data of the sub-viewing areas
Data.
2. display panel pixel compensation method according to claim 1, which is characterized in that according in the sub-viewing areas
The gradation data of each color sub-pixels obtains the average current of the sub-viewing areas, comprising:
The average gray of each color sub-pixels in each sub-viewing areas is obtained according to the gradation data of each color sub-pixels；
The display panel is obtained under 255 gray scale display states, the normal brightness of each sub-viewing areas；
According to the average gray of each color sub-pixels in each sub-viewing areas, the sub-viewing areas is obtained in conjunction with the normal brightness
The brightness of interior each color sub-pixels；
According to putting down for the luminance acquisition of each color sub-pixels in the sub-viewing areas viewing area different colours sub-pixel unit
Equal electric current；
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas.
3. display panel pixel compensation method according to claim 2, which is characterized in that according to each in each sub-viewing areas
The average gray of color sub-pixels obtains the brightness of each color sub-pixels in the sub-viewing areas in conjunction with the normal brightness, packet
It includes:
According to formulaCalculate the brightness of the sub-viewing areas；
Wherein, L indicates the brightness of each color sub-pixels, and L255 indicates normal brightness, and g indicates the average gray value of sub- viewing area,
γ indicates gamma value.
4. display panel pixel compensation method according to claim 2, which is characterized in that
According to putting down for the luminance acquisition of each color sub-pixels in the sub-viewing areas viewing area different colours sub-pixel unit
Equal electric current, comprising:
The average current of each color sub-pixels unit is calculated according to formula L=β * Ip；
Wherein, L indicates the brightness of each color sub-pixels, and β indicates the transformation ratio of the brightness of different colours sub-pixel unit and electric current,
The average current of Ip expression sub-pixel unit.
5. display panel pixel compensation method according to claim 2, which is characterized in that
The average current of the sub-viewing areas is obtained according to the average current of each color sub-pixels in the sub-viewing areas, is wrapped
It includes:
According to formula:Calculate the average current of the sub-viewing areas；
Wherein, IbIndicate that the average current of display area, Rn indicate contribution coefficient of the different colours sub-pixel unit to electric current, Ipn
Indicate the average current of different colours sub-pixel unit.
6. display panel pixel compensation method according to claim 1, which is characterized in that according to the sub-viewing areas
Average current obtains the grey level compensation data of the sub-viewing areas, comprising:
The accumulated current of the sub-viewing areas is obtained according to the average current of the sub-viewing areas；
The accumulation pressure drop of the sub-viewing areas is obtained according to the accumulated current of the sub-viewing areas；
The luminance compensation coefficient of the sub-viewing areas is obtained according to the accumulation pressure drop of the sub-viewing areas；
The luminance compensation data of the sub-viewing areas are obtained according to the luminance compensation coefficient of the sub-viewing areas；
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas.
7. display panel pixel compensation method according to claim 6, which is characterized in that according to the sub-viewing areas
Accumulation pressure drop obtains the luminance compensation coefficient of the sub-viewing areas, comprising:
According to formulaCalculate the luminance compensation coefficient of the sub-viewing areas；
Wherein, G indicates that the luminance compensation coefficient of sub-viewing areas, V indicate the accumulation pressure drop of sub-viewing areas, and Vmax indicates display
The maximum pressure drop of panel, Vmin indicate the minimum pressure drop of display panel, and Gmax indicates the maximum brightness penalty coefficient of display panel,
The minimum brightness penalty coefficient of Gmin expression display panel.
8. display panel pixel compensation method according to claim 6, which is characterized in that according to the sub-viewing areas
Gain compensation factor obtains the luminance compensation data of the sub-viewing areas, comprising: calculates sub- viewing area according to formula Lc=Lo*G
The luminance compensation data in domain；
Wherein, Lc indicates the luminance compensation data of sub-viewing areas, and Lo indicates the brightness of sub-viewing areas, and G indicates sub- viewing area
The luminance compensation coefficient in domain；
According to the grey level compensation data of the luminance compensation data acquisition of the sub-viewing areas sub-viewing areas, comprising:
According to formulaCalculate the grey level compensation data of the sub-viewing areas；
Wherein, Lc indicates the luminance compensation data of the sub- viewing area, and L255 indicates normal brightness, and gc indicates the ash of sub- viewing area
Offset data is spent, γ indicates gamma value.
9. display panel pixel compensation method according to claim 1, which is characterized in that the gray scale of the sub-viewing areas
Offset data calculates the grey level compensation data of each sub-pixel using bilinearity differential technique, comprising:
The grey level compensation data for obtaining the position of form center of the sub-viewing areas are the grey level compensation data of the sub-viewing areas；
It is calculated described in four according to the grey level compensation data of four sub-viewing areas position of form center by bilinearity differential technique
The grey level compensation data of sub-viewing areas intersection；
It is calculated in the sub-viewing areas according to the grey level compensation data of the sub-viewing areas intersection using bilinearity differential technique
The grey level compensation data of each sub-pixel.
10. a kind of display panel pixel compensation device, the display panel includes multiple sub-viewing areas, which is characterized in that packet
It includes:
Receiving unit, for obtaining display picture data；
First processing units, for obtaining each color sub-pixels in each sub-viewing areas according to the display picture data
Gradation data；
The second processing unit, for obtaining the sub- viewing area according to the gradation data of each color sub-pixels in the sub-viewing areas
The average current in domain；
Third processing unit, for obtaining the grey level compensation number of the sub-viewing areas according to the average current of the sub-viewing areas
According to；
Fourth processing unit, it is each for being calculated according to the grey level compensation data of the sub-viewing areas using bilinearity differential technique
The grey level compensation data of sub-pixel.
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