CN109272945A - Backlight antidote, device and the computer readable storage medium of display screen - Google Patents
Backlight antidote, device and the computer readable storage medium of display screen Download PDFInfo
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- CN109272945A CN109272945A CN201811322242.7A CN201811322242A CN109272945A CN 109272945 A CN109272945 A CN 109272945A CN 201811322242 A CN201811322242 A CN 201811322242A CN 109272945 A CN109272945 A CN 109272945A
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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
- G09G3/3406—Control of illumination source
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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
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
- G09G2320/062—Adjustment of illumination source parameters
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of backlight antidotes of display screen, comprising: obtains brightness mura distribution picture of the display screen to be measured under target gray scale, and carries out data processing to brightness mura distribution picture to generate display screen mura tables of data；Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura data under different grayscale；The generated demura data are input to the backlight correction completed in the signal drive circuit of the display screen to be measured to the display screen to be measured.The invention also discloses the backlight apparatus for correcting and computer readable storage medium of a kind of display screen.For the present invention by cancelling taking pictures for low ash rank, the picture that will take pictures reduces to one, shortens photo opporunity, provides beat basis for backlight Mura image rectification mass production applications, and then realize the beneficial effect for improving display backlight correction efficiency.
Description
Technical field
The present invention relates to the backlight antidotes of display backlight alignment technique field more particularly to a kind of display screen, dress
It sets and computer readable storage medium.
Background technique
Liquid crystal display Mura (the phenomenon that referring to that display brightness is uneven, causing various traces) has caused by liquid crystal processing procedure
Unevenly caused two kinds of Mura of backlight, former show obviously under dark field for Cell Mura and backlight, and latter is under bright field
Also performance is obvious, influences user if serious and watches experience.There are many method that Cell Mura is corrected, but when needing darkroom, taking pictures
Between it is long, equipment is high, producing line application be only limited to high-quality requirement product.Backlight Mura generally passes through change optical design solution
Certainly, but the method for this change hardware extends product development cycle, increases product cost.Start to use on Vehicles Collected from Market
The method of cell Mura is corrected to correct backlight Mura, this method is no less than the Mura of 3 different grayscale pictures by shooting
Then data calculate the Mura data under other grayscale with the method for interpolation, finally carry out the generation of DEMURA data.It is this
It can be eliminated with the method for software algorithm correction backlight Mura and carry out the drawbacks of DEMURA is brought, but defect with change optical design
It is to take pictures long with data processing time, far more than 25 seconds or so producing line beats, reduces backlight regulated efficiency and be also not suitable with and produce
Line batch production.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
The main purpose of the present invention is to provide a kind of backlight antidotes of display screen, it is intended to solve the prior art and rectify
It needs to take pictures and data handling procedure for a long time when positive display backlight, the technology for causing display backlight regulated efficiency low
Problem.
To achieve the above object, the present invention provides a kind of backlight antidote of display screen, including the following contents:
Brightness mura distribution picture of the display screen to be measured under target gray scale is obtained, and picture is distributed to the brightness mura
Data processing is carried out to generate display screen mura tables of data；
Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura number under different grayscale
According to；
The generated demura data are input in the signal drive circuit of the display screen to be measured with completion pair
The backlight of the display screen to be measured is corrected.
Preferably, described to be corrected under tables of data and the different grayscale of display screen mura tables of data generation according to predetermined luminance
Demura data the step of before, further includes:
Obtain the object brightness curve and default exponential curve of display screen target position to be measured；
The target correction data that the object brightness curve corrects to the default exponential curve are calculated with preset format, and
The predetermined luminance correction tables of data is generated with the target correction data calculated.
Preferably, the step of the object brightness curve for obtaining display screen target position to be measured and default exponential curve
Suddenly, further includes:
Obtain the object brightness of the target position of the display screen to be measured under different grayscale；
And the object brightness curve of the display screen to be measured is confirmed with the object brightness got.
Preferably, the brightness mura for obtaining display screen to be measured under target gray scale is distributed picture, and to the brightness
Mura is distributed picture and carries out the step of data processing is to generate display screen mura tables of data, further includes:
The brightness mura distribution picture that will acquire inputs preset mura data calculation formula, according to calculated result
Generate the display screen mura tables of data.
Preferably, described to be corrected under tables of data and the different grayscale of display screen mura tables of data generation according to predetermined luminance
Demura data the step of, further includes:
Extract the data content of the predetermined luminance correction tables of data and display screen mura tables of data；
The data content extracted is inputted into preset demura data and generates formula, to generate under different grayscale
The demura data.
In addition, to achieve the above object, the present invention also provides a kind of backlight apparatus for correcting of display screen, the display screen
Backlight apparatus for correcting includes: memory, processor and is stored on the memory and can run on the processor
The backlight of display screen correct program, the backlight correction program of the display screen is realized when being executed by processor as described above aobvious
The step of backlight antidote of display screen.
The present invention also provides a kind of computer readable storage medium, the computer readable storage medium include: memory,
Processor and the backlight correction program for being stored in the display screen that can be run on the memory and on the processor, institute
The backlight for stating display screen corrects the step of realizing the backlight antidote of display screen as described above when program is executed by processor.
The backlight antidote of a kind of display screen proposed by the present invention, by obtaining display screen to be measured under target gray scale
Brightness mura is distributed picture, and carries out data processing to brightness mura distribution picture to generate display screen mura tables of data；
Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura data under different grayscale；It will give birth to
At the demura data be input in the signal drive circuit of the display screen to be measured with complete to the display screen to be measured
Backlight correction.The brightness under the difference grayscale of display screen certain is obtained using luminance meter, it then will be different by software algorithm
Gray-scale intensity is corrected to a fixation index curve distribution, shoots the Mura picture under 255 grayscale with CCD camera lens and calculates
Mura data under 255 grayscale out, by under 255 grayscale Mura data, fixation index curve, brightness correction data table is according to one
Determine algorithm and produces DEMURA data under different grayscale.By cancelling taking pictures for low ash rank, the picture that will take pictures reduces to one, contracting
Short photo opporunity provides beat basis for backlight Mura image rectification mass production applications, and then realizes raising display
Shield the beneficial effect of backlight correction efficiency.
Detailed description of the invention
Fig. 1 be the hardware running environment that the embodiment of the present invention is related to terminal apparatus structure schematic diagram；
Fig. 2 is the flow diagram of the backlight antidote first embodiment of the display screen of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are: obtaining brightness mura distribution of the display screen to be measured under target gray scale
Picture, and data processing is carried out to generate display screen mura tables of data to brightness mura distribution picture；According to predetermined luminance
Correction tables of data and the display screen mura tables of data generate the demura data under different grayscale；It will be generated described
Demura data are input in the signal drive circuit of the display screen to be measured strong to the backlight of the display screen to be measured to complete
Just.
Since the backlight Mura of the prior art by change optical design when being solved, using the side for correcting cell Mura
Method corrects backlight Mura, and this method is no less than the Mura data of 3 different grayscale pictures by shooting, then with interpolation
Method calculates the Mura data under other grayscale, finally carries out the generation of DEMURA data.This corrected with software algorithm is carried on the back
The method of light Mura, which can be eliminated, carries out the drawbacks of DEMURA is brought with change optical design, but defect is to take pictures and data processing
Time is long, far more than 25 seconds or so producing line beats, reduces backlight regulated efficiency and is also not suitable with producing line batch production.
The present invention provides a solution, obtains the brightness under the difference grayscale of display screen certain using luminance meter, so
Different gray-scale intensities are corrected to by a fixation index curve distribution by software algorithm afterwards, shoot one 255 ash with CCD camera lens
Mura picture under rank simultaneously calculates the Mura data under 255 grayscale, by under 255 grayscale Mura data, fixation index curve,
Brightness correction data table produces the DEMURA data under different grayscale according to certain algorithm.By cancelling taking pictures for low ash rank,
The picture that will take pictures reduces to one, shortens photo opporunity, provides beat base for backlight Mura image rectification mass production applications
Plinth, and then realize the beneficial effect for improving display backlight correction efficiency.
As shown in Figure 1, Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.
The terminal of that embodiment of the invention can be PC, be also possible to smart phone, tablet computer, E-book reader, portable
Computer etc. has the packaged type or irremovable formula terminal device of liquid crystal display.
As shown in Figure 1, the terminal may include: processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is for realizing the connection communication between these components.
User interface 1003 may include display screen (Display), input unit such as keyboard (Keyboard), optional user interface
1003 can also include standard wireline interface and wireless interface.Network interface 1004 optionally may include that the wired of standard connects
Mouth, wireless interface (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 1, can wrap
It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.
As shown in Figure 1, as may include that operating system, network are logical in a kind of memory 1005 of computer storage medium
Believe that the backlight of module, Subscriber Interface Module SIM and display screen corrects program.
In terminal shown in Fig. 1, network interface 1004 is mainly used for connecting background server, carries out with background server
Data communication；User interface 1003 is mainly used for connecting client (user terminal), carries out data communication with client；And processor
1001 can be used for calling the backlight correction program of the display screen stored in memory 1005, and execute following operation:
Brightness mura distribution picture of the display screen to be measured under target gray scale is obtained, and picture is distributed to the brightness mura
Data processing is carried out to generate display screen mura tables of data；
Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura number under different grayscale
According to；
The generated demura data are input in the signal drive circuit of the display screen to be measured with completion pair
The backlight of the display screen to be measured is corrected.
Further, processor 1001 can call the backlight of the display screen stored in memory 1005 to correct program, also
Execute following operation:
Obtain the object brightness curve and default exponential curve of display screen target position to be measured；
The target correction data that the object brightness curve corrects to the default exponential curve are calculated with preset format, and
The predetermined luminance correction tables of data is generated with the target correction data calculated.
Further, processor 1001 can call the backlight of the display screen stored in memory 1005 to correct program, also
Execute following operation:
Obtain the object brightness of the target position of the display screen to be measured under different grayscale；
And the object brightness curve of the display screen to be measured is confirmed with the object brightness got.
Further, processor 1001 can call the backlight of the display screen stored in memory 1005 to correct program, also
Execute following operation:
The brightness mura distribution picture that will acquire inputs preset mura data calculation formula, according to calculated result
Generate the display screen mura tables of data.
Further, processor 1001 can call the backlight of the display screen stored in memory 1005 to correct program, also
Execute following operation:
Extract the data content of the predetermined luminance correction tables of data and display screen mura tables of data；
The data content extracted is inputted into preset demura data and generates formula, to generate under different grayscale
The demura data.
It is the flow diagram of the backlight antidote first embodiment of the display screen of the invention referring to Fig. 2, Fig. 2, it is described aobvious
The backlight antidote of display screen includes:
Step S10 obtains brightness mura distribution picture of the display screen to be measured under target gray scale, and to the brightness mura
It is distributed picture and carries out data processing to generate display screen mura tables of data；
Liquid crystal display based on current application confirms that the liquid crystal display is display screen to be measured.It obtains described to be measured
The phenomenon that brightness mura of the display screen under target gray scale is distributed picture, and the mura is liquid crystal display, refers specifically to display
Brightness irregularities, the phenomenon that causing various traces.Therefore, in the method for the present invention, the brightness mura distribution photo got, is base
Picture is distributed in mura of the current display screen to be measured under target gray scale, wherein the target gray scale refers mainly to 255 grayscale.
It is distributed picture according to the mura under 255 grayscale got, the display under 255 grayscale is generated with preset mura data processing
Shield mura tables of data.The grayscale, be by it is most bright with it is most dark between brightness change, divide into several pieces, therefore, grayscale represents
Liquid crystal display is by most secretly to the stratum level of different brightness most bright.This intermediate level is more, the picture that can be presented
Face effect is also finer and smoother.By taking 8bit panel as an example, 28 powers can be showed, are equal to 256 luminance levels, we are just referred to as
For 256 grayscale.Each pixel in LCD screen, is combined by the red, green, blue of different luminance levels, is ultimately formed different
Color point.That is, the color change that each is put on screen, is all three RGB sub-pixels by constituting this point in fact
Gray scale variation brought by.Grayscale defined in the present embodiment is 255 substandard grayscale.Therefore, based on the target ash
The brightness mura picture that rank obtains, it is when generating display screen mura tables of data, i.e., described to obtain display screen to be measured in target gray scale
Under brightness mura be distributed picture, and to the brightness mura distribution picture carry out data processing to generate display screen mura data
The step of table, further includes:
The brightness mura distribution picture that will acquire inputs preset mura data calculation formula, according to calculated result
Generate the display screen mura tables of data.
Brightness mura distribution picture under the target gray scale that will acquire i.e. 255 grayscale is input to preset mura data meter
Formula is calculated, to calculate the display mura tables of data based on brightness mura distribution picture.Therefore, the display calculated
Mura tables of data, the display mura tables of data comprising the brightness Trace Data under the target gray scale, as a grayscale standard
Basic data is provided for display screen correction.
Step S20 corrects tables of data according to predetermined luminance and the display screen mura tables of data generates under different grayscale
Demura data；
Based on generated display screen mura tables of data, with the default read-through suppression data of the display screen to be measured of current application
Table and the generated display screen mura tables of data generate the demura under the different grayscale based on the display screen to be measured
Data.When generating the demura data, tables of data is mainly corrected by the predetermined luminance and is shown with the described of generation
The table content of display screen mura tables of data generates, therefore, described to correct tables of data and the display screen mura number according to predetermined luminance
The step of demura data under different grayscale are generated according to table, further includes:
Extract the data content of the predetermined luminance correction tables of data and display screen mura tables of data；
The data content extracted is inputted into preset demura data and generates formula, to generate under different grayscale
The demura data.
According to the data content in predetermined luminance correction data table and generated display screen mura tables of data.It mentions respectively
The data content for taking predetermined luminance correction data table and display screen mura tables of data inputs the data content extracted
Preset demura data generate formula, in terms of the default exponential curve generated in formula by the preset demura data
Calculate the demura data under different grayscale.The preset demura data generate formula by relevant technical staff by presetting
Data content in brightness correction data table and display screen mura tables of data generates under different grayscale from default exponential curve
The calculation formula of demura data creation.In addition, the default exponential curve, refers to for the fixation of the defined display screen to be measured
The phenomenon that number curve, the exponential curve is for describing with geometric progression increasing or decreasing, i.e. the observed value Yt of time series
Exponentially change, in other words time series increase by phase observed value by certain growth rate or decaying, in the present embodiment
In, in generation, refers to the fixed brightness change exponential curve of liquid crystal display.
As described above, in demura data under generating different grayscale, in the data in predetermined luminance correction data table
It is calculated on the basis of appearance, it is therefore, described that tables of data and display screen mura tables of data generation are corrected not according to predetermined luminance
Before the step of demura data under grayscale, further includes:
Obtain the object brightness curve and default exponential curve of display screen target position to be measured；
The target correction data that the object brightness curve corrects to the default exponential curve are calculated with preset format, and
The predetermined luminance correction tables of data is generated with the target correction data calculated.
Based on the display screen to be measured, obtains the display screen to be measured and be located at the display screen mesh to be measured under different grayscale
The brightness curve of cursor position, and pass through preset gamma correction algorithm for the brightness curve of the target position of the display screen to be measured
It is corrected to preset exponential curve.In this way, in the correction that the brightness curve under different grayscale is corrected to preset exponential curve
When data, the correction data under each grayscale is calculated separately with preset gamma correction algorithm, and described in generating according to calculated result
Predetermined luminance correction data table, therefore, the predetermined luminance correction data table include under entire grayscale by the bright of target position
Spend the correction data of curvature correction to default exponential curve.In addition, bent according to the brightness of the target position of the display screen to be measured
When line generates predetermined luminance correction data table, the brightness of the target position need to be generated by the luminance information of the target position
Therefore curve the step of the object brightness curve and default exponential curve for obtaining display screen target position to be measured, also wraps
It includes:
Obtain the object brightness of the target position of the display screen to be measured under different grayscale；
And the object brightness curve of the display screen to be measured is confirmed with the object brightness got.
Based on the target position for the display screen to be measured currently having confirmed that, the target position under different grayscale is obtained
Brightness, and the object brightness curve of the target position of the display screen to be measured is generated with preset brightness curve create-rule, with
It is existing exponent calculation formula that luminance information, which generates brightness curve, not described here any more.
The generated demura data are input in the signal drive circuit of the display screen to be measured by step S30
To complete the backlight correction to the display screen to be measured.
The data content corrected in the data and display screen mura tables of data in tables of data according to predetermined luminance generates not
With the demura data under grayscale, and the backlight based on generated demura Data correction current application liquid crystal display, institute
The operation based on demura Data correction LCD screen backlight is stated, relevant operation is carried out by relevant technical staff.
In the present embodiment, the brightness under the difference grayscale of display screen certain is obtained using luminance meter, is then calculated by software
Different gray-scale intensities are corrected to a fixation index curve distribution by method, are shot the Mura under 255 grayscale with CCD camera lens and are schemed
Piece simultaneously calculates the Mura data under 255 grayscale, by the Mura data under 255 grayscale, fixation index curve, brightness correction data
Table produces the DEMURA data under different grayscale according to certain algorithm.By cancelling taking pictures for low ash rank, the picture that will take pictures subtracts
To one, photo opporunity is shortened, provides beat basis for backlight Mura image rectification mass production applications, and then realize
Improve the beneficial effect of display backlight correction efficiency.
In addition, the embodiment of the present invention also proposes a kind of computer readable storage medium, the computer readable storage medium
On be stored with the backlight correction program of display screen, the backlight correction program of the display screen realizes following behaviour when being executed by processor
Make:
Brightness mura distribution picture of the display screen to be measured under target gray scale is obtained, and picture is distributed to the brightness mura
Data processing is carried out to generate display screen mura tables of data；
Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura number under different grayscale
According to；
The generated demura data are input in the signal drive circuit of the display screen to be measured with completion pair
The backlight of the display screen to be measured is corrected.
Further, following operation is also realized when the backlight correction program of the display screen is executed by processor:
Obtain the object brightness curve and default exponential curve of display screen target position to be measured；
The target correction data that the object brightness curve corrects to the default exponential curve are calculated with preset format, and
The predetermined luminance correction tables of data is generated with the target correction data calculated.
Further, following operation is also realized when the backlight correction program of the display screen is executed by processor:
Obtain the object brightness of the target position of the display screen to be measured under different grayscale；
And the object brightness curve of the display screen to be measured is confirmed with the object brightness got.
Further, following operation is also realized when the backlight correction program of the display screen is executed by processor:
The brightness mura distribution picture that will acquire inputs preset mura data calculation formula, according to calculated result
Generate the display screen mura tables of data.
Further, following operation is also realized when the backlight correction program of the display screen is executed by processor:
Extract the data content of the predetermined luminance correction tables of data and display screen mura tables of data；
The data content extracted is inputted into preset demura data and generates formula, to generate under different grayscale
The demura data.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, drug or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, drug or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, drug or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of backlight antidote of display screen, which is characterized in that the backlight antidote of the display screen includes following step
It is rapid:
Brightness mura distribution picture of the display screen to be measured under target gray scale is obtained, and brightness mura distribution picture is carried out
Data processing is to generate display screen mura tables of data；
Tables of data is corrected according to predetermined luminance and the display screen mura tables of data generates the demura data under different grayscale；
The generated demura data are input in the signal drive circuit of the display screen to be measured to complete to described
The backlight of display screen to be measured is corrected.
2. the backlight antidote of display screen as described in claim 1, which is characterized in that described according to predetermined luminance correction number
Before the step of generating the demura data under different grayscale according to table and the display screen mura tables of data, further includes:
Obtain the object brightness curve and default exponential curve of display screen target position to be measured；
The target correction data that the object brightness curve corrects to the default exponential curve are calculated with preset format, and in terms of
The target correction data arrived generate the predetermined luminance correction tables of data.
3. the backlight antidote of display screen as claimed in claim 2, which is characterized in that described to obtain display screen target to be measured
The step of object brightness curve and default exponential curve of position, further includes:
Obtain the object brightness of the target position of the display screen to be measured under different grayscale；
And the object brightness curve of the display screen to be measured is confirmed with the object brightness got.
4. the backlight antidote of display screen as described in claim 1, which is characterized in that described to obtain display screen to be measured in mesh
It marks the brightness mura under grayscale and is distributed picture, and data processing is carried out to generate display screen to brightness mura distribution picture
The step of mura tables of data includes:
The brightness mura distribution picture that will acquire inputs preset mura data calculation formula, is generated according to calculated result
The display screen mura tables of data.
5. the backlight antidote of display screen as described in claim 1, which is characterized in that described according to predetermined luminance correction number
The step of generating the demura data under different grayscale according to table and the display screen mura tables of data, comprising:
Extract the data content of the predetermined luminance correction tables of data and display screen mura tables of data；
The data content extracted is inputted into preset demura data and generates formula, described in generating under different grayscale
Demura data.
6. a kind of backlight apparatus for correcting of display screen, which is characterized in that the backlight apparatus for correcting of the display screen includes: storage
Device, processor and the backlight correction journey for being stored in the display screen that can be run on the memory and on the processor
Sequence, the backlight correction program of the display screen realize such as display screen described in any one of claim 1 to 5 when being executed by processor
Backlight antidote the step of.
7. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes: memory, place
Reason device and the backlight correction program for being stored in the display screen that can be run on the memory and on the processor, it is described
The backlight correction program of display screen realizes the backlight such as display screen described in any one of claim 1 to 5 when being executed by processor
The step of antidote.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322242.7A CN109272945B (en) | 2018-11-07 | 2018-11-07 | Backlight correction method and device for display screen and computer readable storage medium |
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