CN109616049A - Compensation method, device, computer equipment and the storage medium of display panel - Google Patents
Compensation method, device, computer equipment and the storage medium of display panel Download PDFInfo
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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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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Abstract
A kind of compensation method of display panel, device, computer equipment and storage medium.Method includes: to obtain at least two preset gray scale values of each sub-pixel matrix, wherein each preset gray scale value is unequal；Obtain at least two light emission luminance values of each sub-pixel matrix, wherein each light emission luminance value is that sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；The relational expression of the grayscale value before obtaining the compensation grayscale value of each sub-pixel matrix and compensating is calculated separately according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value.The compensation method of above-mentioned display panel, each sub-pixel matrix is compensated according to compensation grayscale value and the relational expression of the grayscale value before compensation, so that each sub-pixel matrix is attained by object brightness under any grayscale value, other design compensation circuit is not needed, the uniformity that can guarantee display panel brightness, simplifies circuit structure.
Description
Technical field
This application involves field of display technology, more particularly to a kind of compensation method of display panel, device, computer
Equipment and storage medium.
Background technique
OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) shines as a kind of current mode
Device is applied in Performance Monitor more and more.Due to the limitation of crystallization process, in large-area glass substrate
The LTPS TFT of upper production, the TFT of different location usually have on the electrical parameters such as threshold voltage, mobility non-equal
Even property, this heterogeneity can be converted into the current difference and luminance difference of OLED display device, and be perceived by human eye, i.e.,
Mura phenomenon.That is the phenomenon that Mura refers to brightness disproportionation in display surface plate face, causes various traces.Therefore, it is necessary to display surface
Plate compensates, to eliminate Mura.
Currently, solve the influence of wealthy threshold voltage by the compensation circuit for designing some complexity, it can be effectively to picture
Plain circuit compensates, and eliminates Mura, but complicated compensation circuit reduces pixel aperture ratio.In addition, display panel manufactures
Vapor deposition processing procedure in the process leads between each sub-pixel (sub-pixe I) that there are property differences, such as the cross-pressure and hair between OLED
Light efficiency is different or OLED device aging causes luminous efficiency to decay, and equally causes there is display difference between pixel.
Summary of the invention
Based on this, it is necessary to provide and a kind of be able to solve brightness disproportionation between display panel pixel and cause asking for display difference
Compensation method, device, computer equipment and the storage medium of the display panel of topic.
A kind of compensation method of display panel, the display panel include multiple sub-pixel matrix, each sub-pixel
Matrix includes N*N sub-pixel, wherein N >=1, and the sub-pixel that each sub-pixel matrix includes is red sub- picture
Sub-pixel in element or each sub-pixel matrix is the sub- picture in green sub-pixels or each sub-pixel matrix
Element is blue subpixels, and described method includes following steps:
Obtain at least two preset gray scale values of each sub-pixel matrix, wherein each preset gray scale value is not
It is equal；
Obtain at least two light emission luminance values of each sub-pixel matrix, wherein each light emission luminance value is
The sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
It is calculated separately according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
The relational expression of grayscale value before to the compensation grayscale value of each sub-pixel matrix and compensation.
Each preset gray scale value according to each sub-pixel matrix and each in one of the embodiments,
The light emission luminance value calculates separately to obtain the pass of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
The step of being formula includes:
Based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and GAMMA2.2 brightness calculation
Formula calculates separately to obtain according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
The compensation grayscale value of each sub-pixel matrix and the relational expression of the grayscale value before compensation.
The quantity of the preset gray scale value of each sub-pixel matrix is two in one of the embodiments,.
N=1 in one of the embodiments,.
N=2 in one of the embodiments,.
At least two light emission luminance values for obtaining each sub-pixel matrix in one of the embodiments,
Step includes:
At least two light emission luminance values of each sub-pixel matrix are obtained by photosensitive element.
It is described in one of the embodiments, to obtain at least two of each sub-pixel matrix by photosensitive element
The step of light emission luminance value includes:
At least two light emission luminance values of each sub-pixel matrix are obtained by CCD camera.
A kind of compensation device of display panel, for compensating to display panel, the display panel includes multiple sons
Picture element matrix, each sub-pixel matrix include N*N sub-pixel, wherein N >=1, and each sub-pixel matrix packet
It is green sub-pixels or each that the sub-pixel included, which is the sub-pixel in red sub-pixel or each sub-pixel matrix,
Sub-pixel in the sub-pixel matrix is blue subpixels, and described device includes:
Preset gray scale value obtains module, for obtaining at least two preset gray scale values of each sub-pixel matrix,
In, each preset gray scale value is unequal；
Luminance acquisition module, for obtaining at least two light emission luminance values of each sub-pixel matrix, wherein every
One light emission luminance value is that the sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
Compensation calculation module, for according to each preset gray scale value of each sub-pixel matrix and each hair
Brightness values calculate separately to obtain the relational expression of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation.
A kind of computer equipment can be run on a memory and on a processor including memory, processor and storage
The step of computer program, the processor realizes as above any one the method when executing the computer program.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
The step of as above described in any item methods are realized when row.
Compensation method, device, computer equipment and the storage medium of above-mentioned display panel, by obtaining each son
At least two preset gray scale values of picture element matrix and its corresponding light emission luminance value, are calculated each sub-pixel matrix
Compensation grayscale value and compensation before grayscale value relational expression, thus according to compensation grayscale value and compensation before grayscale value pass
It is that formula compensates each sub-pixel matrix, so as to be attained by target under any grayscale value bright for each sub-pixel matrix
Degree does not need other design compensation circuit, that is, can guarantee the uniformity of display panel brightness, simplify circuit structure.
Detailed description of the invention
Fig. 1 is the flow diagram of the compensation method of display panel in one embodiment；
Fig. 2 is the structural block diagram of the compensation device of display panel in one embodiment；
Fig. 3 is the internal structure chart of computer equipment in one embodiment.
Specific embodiment
In order to which the objects, technical solutions and advantages of the application are more clearly understood, with reference to the accompanying drawings and embodiments,
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application,
It is not used to limit the application.
In one embodiment, as shown in Figure 1, providing a kind of compensation method of display panel, the display panel packet
Multiple sub-pixel matrix are included, each sub-pixel matrix includes N*N sub-pixel, wherein N >=1, and each sub- picture
The sub-pixel that prime matrix includes is that the sub-pixel in red sub-pixel or each sub-pixel matrix is the sub- picture of green
Element or sub-pixel in each sub-pixel matrix are blue subpixels.I.e. each sub-pixel matrix may include 1
Sub-pixel may also comprise multiple sub-pixels of rectangular array arrangement on a display panel, and the son in same sub-pixel matrix
Pixel is same color sub-pixel.In the present embodiment, when Mura is serious, display panel divides more sub-pixel matrix,
At this point, the value of N is smaller, when Mura is less serious, display panel divides less sub-pixel matrix, and the value of N is larger at this time.
It the described method comprises the following steps:
Step 110, at least two preset gray scale values of each sub-pixel matrix are obtained, wherein each default ash
Rank value is unequal.
In one embodiment, display panel is OLED (Organic Light-Emitting Diode, organic light emission
Diode) display panel.In the present embodiment, display panel is AMOLED (Active-matrix organic light-
Emitting diode, active matrix organic light-emitting diode) display panel.In the present embodiment, display panel includes multiple sons
Picture element matrix, each sub-pixel matrix include at least one sub-pixel, each sub-pixel include an Organic Light Emitting Diode and
One driving circuit.In the present embodiment, each sub-pixel matrix of display panel is both needed to obtain at least two preset gray scales
Value, each preset gray scale value are any one numerical value in 0 to 255.It is in the present embodiment, each preset gray scale value is suitable according to size
Sequence arranges, and the spacing between every two adjacent preset gray scale values is equal.In the present embodiment, wherein at least two preset gray scale
Value can be 32 and 64 two, can also be 64 and 96 two, can also be 32,64 and 96 3.In the present embodiment, by preset gray scale
Value is supplied to sub-pixel matrix, each sub-pixel in sub-pixel matrix carry out it is luminous, can measure sub-pixel matrix shine
Brightness value.
Step 120, at least two light emission luminance values of each sub-pixel matrix are obtained, wherein each described luminous
Brightness value is that the sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value.
In the present embodiment, obtains the sub-pixel matrix and be based on a preset gray scale value and shine corresponding light emission luminance
Value, the light emission luminance value are the common intrinsic brilliance that all sub-pixels in sub-pixel matrix are shone based on preset gray scale value.
In the present embodiment, it is supplied to one preset gray scale value of sub-pixel matrix, all sub-pixel for emitting light in sub-pixel matrix corresponding one
The light emission luminance value of a sub-pixel matrix.In the present embodiment, it is pre- that sub-pixel matrix at least two is supplied in different moments respectively
If grayscale value, the sub-pixel in sub-pixel matrix is then when luminous with different light emission luminance values, and sub-pixel matrix is based on one
The luminous brightness value of preset gray scale value is a light emission luminance value, it may also be said to, preset gray scale value and light emission luminance value one are a pair of
It answers.
Step 130, according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value point
The compensation grayscale value of each sub-pixel matrix and the relational expression of the grayscale value before compensation are not calculated.
It can get the sub-pixel with appointing according to the relational expression of the grayscale value before the compensation grayscale value of sub-pixel matrix and compensation
The corresponding compensation grayscale value of grayscale value before one compensation, to be compensated to each sub-pixel matrix.It is appreciated that each
Sub-pixel matrix, when grayscale value is 10, according to the relational expression of the grayscale value before the compensation grayscale value of sub-pixel matrix and compensation
It can get corresponding compensation grayscale value, when grayscale value is 20, according to the ash before the compensation grayscale value of sub-pixel matrix and compensation
The relational expression of rank value can get corresponding compensation grayscale value, not exhaustive.Sub-pixel in each sub-pixel matrix is having the same
The relational expression of grayscale value before compensating grayscale value and compensation, namely using the grayscale value before same compensation grayscale value and compensation
Relational expression compensates each sub-pixel in same sub-pixel matrix.In the present embodiment, based on compensation grayscale value and preset
The relational expression of grayscale value and light emission luminance value, according to each preset gray scale value of each sub-pixel matrix and each described
Light emission luminance value calculates separately to obtain the relationship of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
Formula.Equation can be constituted by compensating between grayscale value and preset gray scale value and light emission luminance value, and pass through the pre- of at least two groups
If grayscale value and light emission luminance value can acquire the relational expression of the grayscale value before compensation grayscale value and compensation.
The compensation method of above-mentioned display panel, by least two preset gray scales for obtaining each sub-pixel matrix
Value and its corresponding light emission luminance value, the compensation grayscale value that each sub-pixel matrix is calculated and the grayscale before compensation
The relational expression of value, to be mended according to compensation grayscale value and the relational expression of the grayscale value before compensation to each sub-pixel matrix
It repays, so that each sub-pixel matrix is attained by object brightness under any grayscale value, does not need other design compensation circuit,
The uniformity that can guarantee display panel brightness, simplifies circuit structure.
In one of the embodiments, in each preset gray scale value according to each sub-pixel matrix and
Each light emission luminance value calculates separately to obtain the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
After the step of relational expression, the compensation method of the display panel further includes following steps:
Compensation system is obtained according to the relational expression of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
Number table, carries out compression storage into the Flash of display module to coefficient table, is inputted display module by integrated IC or FPGA
Data, which calculate, to be obtained compensated pixel data and is shown in AMOLED mould group.Wherein, in each sub-pixel matrix
The relational expression of grayscale value before sub-pixel compensation grayscale value having the same and compensation, namely using same compensation grayscale value and
The relational expression of grayscale value before compensation compensates each sub-pixel in same sub-pixel matrix.
In the present embodiment, compensated by the grayscale value of the sub-pixel to sub-pixel matrix, so that sub-pixel matrix
The brightness value for the light that sub-pixel issues under conditions of compensated grayscale value is target brightness value, avoids existing between pixel
It shows difference, ensure that the uniformity of display panel brightness.
Each preset gray scale value according to each sub-pixel matrix and each in one of the embodiments,
The light emission luminance value calculates separately to obtain the pass of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
The step of being formula includes:
Based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and GAMMA2.2 brightness calculation
Formula calculates separately to obtain according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
The compensation grayscale value of each sub-pixel matrix and the relational expression of the grayscale value before compensation.
Specifically, thin film transistor (TFT) saturation region current formula are as follows: Id=μ CoxW/L (Vgs-Vth)2, wherein Id is stream
The electric current of the Organic Light Emitting Diode of sub-pixel is crossed, Cox is gate oxidation layer capacitance, and W and L are respectively thin film transistor channel
Length and width.Vgs is thin film transistor (TFT) coral pole source bias, and μ is mobility；
Display panel luminous efficiency formula are as follows: L=xId, wherein L is the bright of the Organic Light Emitting Diode of pixel circuit
Degree；
GAMMA2.2 brightness calculation formula are as follows: Lgray=L255(Gray/255)2.2, wherein Gray is pixel circuit
Grayscale value, Lgray are target brightness value of the pixel circuit under the preset gray scale value provided.
In the present embodiment, based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and
GAMMA2.2 brightness calculation formula, detailed process is as follows for the relational expression of the grayscale value before obtaining compensation grayscale value and compensation:
According to currently used AMOLED circuit, there is formula 1 --- thin film transistor (TFT) saturation region current formula are as follows: Id=μ
CoxW/L(Vgs-Vth)2, wherein Id is the electric current for flowing through the Organic Light Emitting Diode of sub-pixel, and Cox is grid oxic horizon electricity
Appearance, W and L are respectively the length and width of thin film transistor channel.Vgs is thin film transistor (TFT) coral pole source bias, and μ is mobility；
Since OLED current is directly proportional to OLED brightness, there is formula 2 --- display panel luminous efficiency formula are as follows: L=
XId, wherein L is the brightness of the Organic Light Emitting Diode of pixel circuit；
It brings formula 2 into formula 1 and obtains formula 3:Wherein Lreal is sub- picture
The light emission luminance value of prime matrix, the common reality that also sub-pixel as in sub-pixel matrix is shone based on preset gray scale value
Brightness；
AMOLED is currently that every gamma turning (gamma turning: refers to and carries out gamma to the grayscale of mould group
Correction, makes the brightness of each of which grayscale meet the trend of gamma2.2), according to GAMMA2.2 brightness calculation formula, there is formula 4:
Lgray=L255* (Gray/255) 2.2, wherein Lgray is theoretically normal brightness of the AMOLED under current gray；
Since different pixels point intrinsic brilliance is different, but Vgs is identical, therefore brings formula 3 into formula 4 and can obtain
The light emission luminance value of Mura sub-pixel and the relational expression of preset gray scale value, there is formula 5:Wherein α and
β is constant；
From formula 5, it is only necessary to which two preset gray scale values and corresponding light emission luminance value can be obtained the correspondence α of RGB
And β, and when the quantity of preset gray scale value is greater than two, it can get the mean value of the correspondence α and β of RGB；
Bringing formula 5 into formula 4 can obtain:Wherein grayo is compensated grayscale
Value, gray are the grayscale value before compensation；
Simplified formula is obtained into formula: γ gray1.1=grayo1.1+ β, wherein γ is constant related with α；
It is approximately that 1 power obtains formula by 1.1 powers: γ gray=grayo+ β；
Formula 6:(γ -1 can be obtained according to garyo=gray+ Δ gray) * gray- β=Δ gray, wherein Δ gray is
The compensation grayscale value of Mura, gray are the grayscale value before compensation；Since γ and β can be acquired by formula 5, can must compensate
The relational expression of grayscale value before grayscale value and compensation, to obtain penalty coefficient table.
Display panel includes multiple sub-pixel matrix in one of the embodiments, according to each sub-pixel square of acquisition
At least two preset gray scale values and its corresponding light emission luminance value of battle array, each sub-pixel matrix are calculated by formula 5 and obtain one
To the compensation vector of α and β, the compensation vector of each sub-pixel matrix is generated into corresponding compensation vector table, further according to compensation to
Scale obtains 6 penalty coefficient table of formula by formula 6, carries out the Flash that display module is arrived in compression storage to penalty coefficient table
It, will by integrated IC or FPGA (Field-Programmable Gate Array, field programmable gate array) in (flash memory)
Display module input data, which calculate, to be obtained compensated pixel data and is shown in AMOLED mould group.
In order to improve working efficiency, the preset gray scale of each sub-pixel matrix in one of the embodiments,
The quantity of value is two.Since the quantity of the preset gray scale value of each sub-pixel matrix is two, then only need to make sub-pixel square
Battle array shines under two grayscale values and shoots two corresponding pixel intensities by high-precision CCD, improves work efficiency, and reduces
The time of data is obtained, while also saving and calculating time.
In order to enable the relational expression of the compensation grayscale value arrived and the grayscale value before compensation is more acurrate, an implementation wherein
In example, the quantity of the preset gray scale value of each sub-pixel matrix is three, the preset gray scale according to any two
Value and the light emission luminance value corresponding to it, can be calculated one group of α ' and β ', by each group α ' and β ' be averaged to obtain α with
β, to obtain the compensation grayscale value of the sub-pixel matrix and the relational expression of the grayscale value before compensation.
In order to keep the compensation to each sub-pixel of display panel more accurate, in one of the embodiments, N=1. by
When N=1, each sub-pixel matrix include a sub-pixel, namely to the equal supplement of each sub-pixel repay grayscale value and compensation before
Grayscale value relational expression so that more accurate to the compensation of each sub-pixel.
In order to improve the computational efficiency to the offset data of display panel and make the compensation to each sub-pixel of display panel
It is relatively accurate, N=2 in one of the embodiments,.Due to N too it is small for example equal to 1 when, need to obtain and calculate every height picture
The data of element make computational efficiency too low, and data need enough space storing datas too much, although needing to obtain when N is too big
The data for the sub-pixel for taking and calculating are few high-efficient, but each sub-pixel in same sub-pixel matrix is all according to same compensation
The relational expression of grayscale value and the grayscale value before compensation compensates, so that not quasi- enough to the compensation of each sub-pixel of display panel
Really, by the way that N=2 is arranged, the value of N is not too big will not be too small, improves to the computational efficiency of the offset data of display panel simultaneously
Keep the compensation to each sub-pixel of display panel relatively accurate.
It is described in one of the embodiments, to obtain each sub-pixel square in order to accurately obtain light emission luminance value
The step of at least two light emission luminance value of battle array includes: to obtain at least the two of each sub-pixel matrix by photosensitive element
A light emission luminance value.In the present embodiment, photosensitive element is CCD camera.It is described to be obtained often by photosensitive element in the present embodiment
The step of at least two light emission luminance value of one sub-pixel matrix includes: to obtain each sub-pixel by CCD camera
At least two light emission luminance values of matrix.
CCD camera is in safety and protection system, and the generation of image is currently mostly from CCD camera, and CCD is charge
The abbreviation of coupled apparatus (charge coupled device), it light can be become charge and by charge storage and turn
It moves, can also take out the charge of storage makes voltage change, therefore is ideal CCD camera element, the CCD constituted with it
Camera is widely used with characteristic that is small in size, light-weight, being unaffected by the magnetic field, have anti-vibration and shock.CCD phase
Machine is used for towards display panel, and specifically, CCD camera is used for the sub-pixel matrix towards display panel, in such manner, it is possible to pass through
The light emission luminance value of CCD camera acquisition sub-pixel matrix.
Specifically, when sub-pixel matrix is powered and shines based on predesigned compensation value, pixel is acquired by CCD camera
The image of circuit can get the light emission luminance value of the pixel circuit, obtain and shine by using high-precision CCD camera
Brightness value is as a result more accurate.
In one embodiment, as shown in Fig. 2, providing a kind of compensation device of display panel, for display panel
It compensating, the display panel includes multiple sub-pixel matrix, and each sub-pixel matrix includes N*N sub-pixel,
In, N >=1, and the sub-pixel that each sub-pixel matrix includes is red sub-pixel or each sub-pixel matrix
In sub-pixel be green sub-pixels or sub-pixel in each sub-pixel matrix or be blue subpixels, it is described
Device includes: that preset gray scale value obtains module 210, luminance acquisition module 220 and computing module 230, in which:
Preset gray scale value obtains module 210, for obtaining at least two preset gray scales of each sub-pixel matrix
Value, wherein each preset gray scale value is unequal；
Luminance acquisition module 220, for obtaining at least two light emission luminance values of each sub-pixel matrix, wherein
Each light emission luminance value is that the sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
Compensation calculation module 230, for according to each preset gray scale value of each sub-pixel matrix and each described
Light emission luminance value calculates separately to obtain the relationship of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation
Formula.
The computing module is used for based on thin film transistor (TFT) saturation region current formula, display in one of the embodiments,
Panel luminous efficiency formula and GAMMA2.2 brightness calculation formula, according to each preset gray scale value and each light emission luminance
The compensation grayscale value of the pixel circuit and the relational expression of the grayscale value before compensation is calculated in value.
The quantity of the preset gray scale value of each sub-pixel matrix is two in one of the embodiments,.
N=1 in one of the embodiments,.
N=2 in one of the embodiments,.
The luminance acquisition module is used to obtain each sub- picture by photosensitive element in one of the embodiments,
At least two light emission luminance values of prime matrix.
The luminance acquisition module is used to obtain each sub-pixel by CCD camera in one of the embodiments,
At least two light emission luminance values of matrix.
The specific of compensation device about display panel limits the compensation method that may refer to above for display panel
Restriction, details are not described herein.Modules in the compensation device of above-mentioned display panel can fully or partially through software,
Hardware and combinations thereof is realized.Above-mentioned each module can be embedded in the form of hardware or independently of the processor in computer equipment
In, it can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution above each
The corresponding operation of module.
In one embodiment, a kind of computer equipment is provided, which can be terminal, internal junction
Composition can be as shown in Figure 3.The computer equipment include by system bus connect processor, memory, network interface,
Display screen and input unit.Wherein, the processor of the computer equipment is for providing calculating and control ability.The computer is set
Standby memory includes non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system and meter
Calculation machine program.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.
The network interface of the computer equipment is used to communicate with external terminal by network connection.The computer program is by processor
A kind of compensation method of display panel is realized when execution.The display screen of the computer equipment can be liquid crystal display or
Electric ink display screen, the input unit of the computer equipment can be the touch layer covered on display screen, be also possible to count
Key, trace ball or the Trackpad being arranged on machine equipment shell are calculated, can also be external keyboard, Trackpad or mouse etc..
It will be understood by those skilled in the art that structure shown in Fig. 3, only part relevant to application scheme
The block diagram of structure, does not constitute the restriction for the computer equipment being applied thereon to application scheme, and specific computer is set
Standby may include perhaps combining certain components or with different component cloth than more or fewer components as shown in the figure
It sets.
In one embodiment, it provides a kind of computer equipment, including memory, processor and is stored in memory
Computer program that is upper and can running on a processor, the computer program are described aobvious for compensating to display panel
Show that panel includes multiple sub-pixel matrix, each sub-pixel matrix includes N*N sub-pixel, wherein N >=1, and it is each
The sub-pixel that the sub-pixel matrix includes is that the sub-pixel in red sub-pixel or each sub-pixel matrix is
Green sub-pixels or sub-pixel in each sub-pixel matrix are blue subpixels, and processor executes computer journey
It is performed the steps of when sequence
Obtain at least two preset gray scale values of each sub-pixel matrix, wherein each preset gray scale value is not
It is equal；
Obtain at least two light emission luminance values of each sub-pixel matrix, wherein each light emission luminance value is
The sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
It is calculated separately according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
The relational expression of grayscale value before to the compensation grayscale value of each sub-pixel matrix and compensation.
In one embodiment, it is also performed the steps of when processor executes computer program
Based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and GAMMA2.2 brightness calculation
The compensation grayscale value of the pixel circuit is calculated according to each preset gray scale value and each light emission luminance value for formula
With the relational expression of the grayscale value before compensation.
In one embodiment, it is also performed the steps of when processor executes computer program
At least two light emission luminance values of each sub-pixel matrix are obtained by photosensitive element.
In one embodiment, it is also performed the steps of when processor executes computer program
At least two light emission luminance values of each sub-pixel matrix are obtained by CCD camera.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, institute
Computer program is stated for compensating to display panel, the display panel includes multiple sub-pixel matrix, each son
Picture element matrix includes N*N sub-pixel, wherein N >=1, and the sub-pixel that each sub-pixel matrix includes is red son
Sub-pixel in pixel or each sub-pixel matrix is the son in green sub-pixels or each sub-pixel matrix
Pixel is blue subpixels, is performed the steps of when computer program is executed by processor
Obtain at least two preset gray scale values of each sub-pixel matrix, wherein each preset gray scale value is not
It is equal；
Obtain at least two light emission luminance values of each sub-pixel matrix, wherein each light emission luminance value is
The sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
It is calculated separately according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
The relational expression of grayscale value before to the compensation grayscale value of each sub-pixel matrix and compensation.
In one embodiment, it is also performed the steps of when computer program is executed by processor
Based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and GAMMA2.2 brightness calculation
The compensation grayscale value of the pixel circuit is calculated according to each preset gray scale value and each light emission luminance value for formula
With the relational expression of the grayscale value before compensation.
In one embodiment, it is also performed the steps of when computer program is executed by processor
At least two light emission luminance values of each sub-pixel matrix are obtained by photosensitive element.
In one embodiment, it is also performed the steps of when computer program is executed by processor
At least two light emission luminance values of each sub-pixel matrix are obtained by CCD camera.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can
It is completed with instructing relevant hardware by computer program, the computer program can be stored in a non-volatile meter
In calculation machine read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.
Wherein, any of memory, storage, database or other media is drawn used in each embodiment provided herein
With may each comprise non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), can
Programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile storage
Device may include random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is with more
Kind form can obtain, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram
(DDRSDRAM), enhanced SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus
(Rambus) direct RAM (RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram
(RDRAM) etc..
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the guarantor of the application
Protect range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of compensation method of display panel, the display panel includes multiple sub-pixel matrix, each sub-pixel square
Battle array includes N*N sub-pixel, wherein N >=1, and the sub-pixel that each sub-pixel matrix includes is red sub-pixel, or
Sub-pixel in each sub-pixel matrix is green sub-pixels or the sub-pixel or equal in each sub-pixel matrix
For blue subpixels, which is characterized in that described method includes following steps:
Obtain at least two preset gray scale values of each sub-pixel matrix, wherein each preset gray scale value is unequal；
Obtain at least two light emission luminance values of each sub-pixel matrix, wherein each light emission luminance value is described
Sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
It calculates separately to obtain according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value each
The compensation grayscale value of a sub-pixel matrix and the relational expression of the grayscale value before compensation.
2. the method according to claim 1, wherein described according to each described pre- of each sub-pixel matrix
If grayscale value and each light emission luminance value calculate separately before obtaining the compensation grayscale value of each sub-pixel matrix and compensation
Grayscale value relational expression the step of include:
Based on thin film transistor (TFT) saturation region current formula, display panel luminous efficiency formula and GAMMA2.2 brightness calculation formula,
It calculates separately to obtain each institute according to each preset gray scale value of each sub-pixel matrix and each light emission luminance value
State the compensation grayscale value of sub-pixel matrix and the relational expression of the grayscale value before compensation.
3. the method according to claim 1, wherein the preset gray scale value of each sub-pixel matrix
Quantity is two.
4. the method according to claim 1, wherein N=1.
5. the method according to claim 1, wherein N=2.
6. the method according to claim 1, wherein described obtain at least two of each sub-pixel matrix
The step of light emission luminance value includes:
At least two light emission luminance values of each sub-pixel matrix are obtained by photosensitive element.
7. according to the method described in claim 6, it is characterized in that, described obtain each sub-pixel square by photosensitive element
Battle array at least two light emission luminance values the step of include:
At least two light emission luminance values of each sub-pixel matrix are obtained by CCD camera.
8. a kind of compensation device of display panel, for compensating to display panel, the display panel includes multiple sub- pictures
Prime matrix, each sub-pixel matrix include N*N sub-pixel, wherein N >=1, and each sub-pixel matrix includes
It is green sub-pixels or each described that sub-pixel, which is sub-pixel in red sub-pixel or each sub-pixel matrix,
Sub-pixel in sub-pixel matrix is blue subpixels, which is characterized in that described device includes:
Preset gray scale value obtains module, for obtaining at least two preset gray scale values of each sub-pixel matrix, wherein each
The preset gray scale value is unequal；
Luminance acquisition module, for obtaining at least two light emission luminance values of each sub-pixel matrix, wherein each described
Light emission luminance value is that the sub-pixel matrix is based on a preset gray scale value and shines corresponding light emission luminance value；
Compensation calculation module, for according to each preset gray scale value of each sub-pixel matrix and each light emission luminance
Value calculates separately to obtain the relational expression of the grayscale value before the compensation grayscale value of each sub-pixel matrix and compensation.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any one of claims 1 to 7 institute when executing the computer program
The step of stating method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any one of claims 1 to 7 is realized when being executed by processor.
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Application publication date: 20190412 |