CN109949744A - Gamma electric voltage bearing calibration and device - Google Patents
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Abstract
The present invention provides a kind of gamma electric voltage bearing calibration and devices, belong to field of display technology.Wherein, gamma electric voltage bearing calibration, comprising: the display screen of display module is divided into N*N region, wherein N is the integer greater than 1；N number of test zone is selected from N*N region, the ranks of N number of test zone are different；The grayscale of each test zone is adjusted to one and ties up a grayscale, different test zones are corresponding to tie up a grayscale difference, one RGB register initial value is inputted to each test zone, obtain the optical parameter of each test zone, the RGB register value of each test zone is adjusted, so that the optical parameter of each test zone is fallen in the error range of optical parameter target value.Technical solution of the present invention is able to solve the problem of existing gamma correction overlong time, and production efficiency can be improved.
Description
Technical field
The present invention relates to field of display technology, a kind of gamma electric voltage bearing calibration and device are particularly related to.
Background technique
With AMOLED (Active-matrix organic light emitting diode, the organic hair of active matrix
Near-infrafed photodiodes) display technology development, more and more electronic products begin to use AMOLED display screen.But AMOLED is shown
Screen in process of production, still has some difficult point needs to overcome, one of them is exactly the optical parameter adjusting of AMOLED screen.
Because display screen will adapt to the sensitivity of human eye at different brightnesses, and AMOLED technique is difficult to ensure very at present
Consistency between good piece, therefore, it is necessary to carry out optical parameter adjustment to every AMOLED display screen, that is, every AMOLED is shown
Display screen requires to carry out gamma electric voltage correction.
The method that AMOLED product carries out gamma electric voltage correction at present is (to correspond to each grayscale of tying up in driving chip
Adjustable grayscale, also known as grayscale are tied up a little) the optical parameters such as brightness, chromaticity coordinates be adjusted to corresponding target value one by one, but at present
High-resolution display module ties up a grayscale generally up to tens, each ties up a grayscale and often needs repeatedly adjustment again, therefore
The time for carrying out gamma correction is very long, influences production efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of gamma electric voltage bearing calibration and devices, are able to solve existing gal
Horse correction time too long problem, can be improved production efficiency.
In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:
On the one hand, a kind of gamma electric voltage bearing calibration is provided, comprising:
The display screen of display module is divided into N*N region, wherein N is the integer greater than 1；
N number of test zone is selected from N*N region, the ranks of N number of test zone are different；
The grayscale of each test zone is adjusted to one and ties up a grayscale, different test zones are corresponding to tie up a grayscale difference,
One RGB register initial value is inputted to each test zone, the optical parameter of each test zone is obtained, to each test zone
RGB register value be adjusted so that the optical parameter of each test zone falls in the error range of optical parameter target value
It is interior.
Optionally, the optical parameter includes brightness and chromaticity coordinates.
Optionally, the optical parameter for obtaining each test zone includes:
The display picture that the display screen is obtained using image capture device is obtained each according to acquired display picture
The optical parameter of test zone.
Optionally, the optical parameter target value includes brightness target value, and the method also includes obtaining each test section
The step of the step of brightness target value in domain, the brightness target value for obtaining each test zone includes:
The grayscale of N number of test zone is adjusted to highest grayscale, the grayscale in other regions is adjusted to minimum gray scale；
The display picture that the display screen is obtained using image capture device is determined respectively according to acquired display picture
The brightness of each test zone corresponds to the Benchmark brightness of the highest grayscale as each test zone；
The corresponding brightness target value for tying up a grayscale is calculated according to the Benchmark brightness of each test zone.
Optionally, the RGB register value to each test zone is adjusted, so that the optics of each test zone
Parameter is fallen in the error range of optical parameter target value
The G register value of each test zone is adjusted, so that the chromaticity coordinates y value of each test zone falls into color seat
In the error range for marking y target value；
The B-register value of each test zone is adjusted, so that the brightness value of each test zone falls into brightness mesh
In the error range of scale value；
The R register value of each test zone is adjusted, so that the chromaticity coordinates x value of each test zone falls into color seat
In the error range for marking x target value.
Optionally, N is the number for tying up a grayscale.
The embodiment of the invention also provides a kind of gamma electric voltage means for correctings, comprising:
Division module, for the display screen of display module to be divided into N*N region, wherein N is the integer greater than 1；
Selecting module, for selecting N number of test zone from N*N region, each not phase of the ranks of N number of test zone
Together；
Correction module ties up a grayscale for the grayscale of each test zone to be adjusted to one, and different test zones are corresponding
A grayscale difference is tied up, a RGB register initial value is inputted to each test zone, obtains the optical parameter of each test zone,
The RGB register value of each test zone is adjusted, so that the optical parameter of each test zone falls in Optical Parametric number
In the error range of scale value.
Optionally, the optical parameter includes brightness and chromaticity coordinates.
Optionally, described device further include:
Image capture device, for obtaining the display picture of the display screen；
The correction module is specifically used for obtaining the optical parameter of each test zone according to acquired display picture.
Optionally, the optical parameter target value includes brightness target value, described device further include:
Brightness target value obtains module, for the grayscale of N number of test zone to be adjusted to highest grayscale, other regions
Grayscale be adjusted to minimum gray scale；The display picture that the display screen is obtained using image capture device is shown according to acquired
Show that picture determines the brightness of each test zone respectively, the Benchmark brightness of the highest grayscale is corresponded to as each test zone；
The corresponding brightness target value for tying up a grayscale is calculated according to the Benchmark brightness of each test zone.
Optionally, the correction module includes:
First correction unit, is adjusted for the G register value to each test zone, so that each test zone
Chromaticity coordinates y value is fallen into the error range of chromaticity coordinates y target value；
Second correction unit, is adjusted for the B-register value to each test zone, so that each test zone
Brightness value is fallen into the error range of brightness target value；
Third corrects unit, is adjusted for the R register value to each test zone, so that each test zone
Chromaticity coordinates x value is fallen into the error range of chromaticity coordinates x target value.
The embodiment of the invention also provides a kind of gamma electric voltage calibration equipments, comprising: memory, processor and is stored in
On reservoir and the computer program that can run on a processor, realized when the computer program is executed by the processor as above
Step in the gamma electric voltage bearing calibration.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program is realized when being executed by processor in gamma electric voltage bearing calibration as described above
Step.
The embodiment of the present invention has the advantages that
In above scheme, the display screen of display module is divided into N*N region, N number of test is selected from N*N region
The grayscale of each test zone is adjusted to one and ties up a grayscale by region, is adjusted to the RGB register value of each test zone
Section, so that the optical parameter of each test zone is fallen in the error range of optical parameter target value, it in this way can be with parallel
Mode is simultaneously adjusted a N number of grayscale of tying up, and can largely reduce the time of gamma correction, improves production efficiency.
Detailed description of the invention
Fig. 1 is the flow diagram of gamma electric voltage of embodiment of the present invention bearing calibration；
Fig. 2 is the structural block diagram of gamma electric voltage of embodiment of the present invention means for correcting；
Fig. 3 is the schematic diagram for the test pictures 1 that the embodiment of the present invention uses；
Fig. 4 is the schematic diagram for the test pictures 2 that the embodiment of the present invention uses；
Fig. 5 is the flow diagram that the embodiment of the present invention adjusts optical parameter.
Specific embodiment
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
The method that AMOLED product carries out gamma electric voltage correction at present, is to be adjusted to the grayscale of the display screen of display module
One ties up a grayscale, and RGB register value is adjusted, and the optical parameter of display screen is adjusted to target value；Later, mould will be shown
The grayscale of the display screen of group is adjusted to next and ties up a grayscale, RGB register value is adjusted, by the optical parameter tune of display screen
It is whole to arrive target value, and so on, the optical parameters such as each brightness for tying up a grayscale, chromaticity coordinates are adjusted to corresponding target one by one
Value, but high-resolution display module ties up a grayscale generally up to tens at present, each tie up a grayscale often need again it is multiple
Adjustment, therefore the time for carrying out gamma correction is very long, influences production efficiency.
The embodiment of the present invention is able to solve existing in view of the above-mentioned problems, provide a kind of gamma electric voltage bearing calibration and device
There is the problem of gamma correction overlong time, production efficiency can be improved.
The embodiment of the present invention provides a kind of gamma electric voltage bearing calibration, as shown in Figure 1, comprising:
Step 101: the display screen of display module is divided into N*N region, wherein N is the integer greater than 1；
Step 102: N number of test zone is selected from N*N region, the ranks of N number of test zone are different；
Step 103: the grayscale of each test zone being adjusted to one and ties up a grayscale, different test zones are corresponding to tie up an ash
Rank is different, inputs a RGB register initial value to each test zone, the optical parameter of each test zone is obtained, to each
The RGB register value of test zone is adjusted, so that the optical parameter of each test zone falls in optical parameter target value
In error range.
In the present embodiment, the display screen of display module is divided into N*N region, N number of test is selected from N*N region
The grayscale of each test zone is adjusted to one and ties up a grayscale by region, is adjusted to the RGB register value of each test zone
Section, so that the optical parameter of each test zone is fallen in the error range of optical parameter target value, it in this way can be with parallel
Mode is simultaneously adjusted a N number of grayscale of tying up, and can largely reduce the time of gamma correction, improves production efficiency.
Optionally, the optical parameter includes brightness and chromaticity coordinates, is carried out in the RGB register value to each test zone
When adjusting, it is required that the brightness of each test zone and chromaticity coordinates are all fallen in the error range of target value, specifically, color is sat
Target target value can be x=0.313, and y=0.329, error range can be ± 0.03.
Optionally, the optical parameter for obtaining each test zone includes:
The display picture that the display screen is obtained using image capture device is obtained each according to acquired display picture
The optical parameter of test zone.
Wherein, image capture device can clap display screen using colored CCD with colored CCD (charge-coupled device)
According to the display picture that can obtain display screen.
Optionally, the optical parameter target value includes brightness target value, and the method also includes obtaining each test section
The step of the step of brightness target value in domain, the brightness target value for obtaining each test zone includes:
The grayscale of N number of test zone is adjusted to highest grayscale, the grayscale in other regions is adjusted to minimum gray scale；
The display picture that the display screen is obtained using image capture device is determined respectively according to acquired display picture
The brightness of each test zone corresponds to the Benchmark brightness of the highest grayscale as each test zone；
The corresponding brightness target value for tying up a grayscale is calculated according to the Benchmark brightness of each test zone.
Optionally, the RGB register value to each test zone is adjusted, so that the optics of each test zone
Parameter is fallen in the error range of optical parameter target value
The G register value of each test zone is adjusted, so that the chromaticity coordinates y value of each test zone falls into color seat
In the error range for marking y target value；
The B-register value of each test zone is adjusted, so that the brightness value of each test zone falls into brightness mesh
In the error range of scale value；
The R register value of each test zone is adjusted, so that the chromaticity coordinates x value of each test zone falls into color seat
In the error range for marking x target value.
In the present embodiment, first the G register value of each test zone is adjusted, so that the color of each test zone is sat
Mark y value is met the requirements, and then the B-register value of each test zone is adjusted again, so that the brightness of each test zone
It meets the requirements, finally the R register value of each test zone is adjusted again, so that the chromaticity coordinates x value of each test zone
It meets the requirements, can be realized the debugging of gamma electric voltage.
In one specific embodiment, N can be the number for tying up a grayscale, in this way can be in a parallel fashion simultaneously to whole
A N number of grayscale of tying up is adjusted, and can reduce the time of gamma correction to the full extent, improves production efficiency.
The embodiment of the invention also provides a kind of gamma electric voltage means for correctings, as shown in Figure 2, comprising:
Division module 21, for the display screen of display module to be divided into N*N region, wherein N is the integer greater than 1；
Selecting module 22, for selecting N number of test zone from N*N region, the ranks of N number of test zone are respectively not
It is identical；
Correction module 23 ties up a grayscale for the grayscale of each test zone to be adjusted to one, and different test zones are corresponding
Tie up a grayscale difference, to each test zone input a RGB register initial value, obtain the Optical Parametric of each test zone
Number, is adjusted the RGB register value of each test zone, so that the optical parameter of each test zone falls in optical parameter
In the error range of target value.
In the present embodiment, the display screen of display module is divided into N*N region, N number of test is selected from N*N region
The grayscale of each test zone is adjusted to one and ties up a grayscale by region, is adjusted to the RGB register value of each test zone
Section, so that the optical parameter of each test zone is fallen in the error range of optical parameter target value, it in this way can be with parallel
Mode is simultaneously adjusted a N number of grayscale of tying up, and can largely reduce the time of gamma correction, improves production efficiency.
Optionally, the optical parameter includes brightness and chromaticity coordinates, is carried out in the RGB register value to each test zone
When adjusting, it is required that the brightness of each test zone and chromaticity coordinates are all fallen in the error range of target value, specifically, color is sat
Target target value can be x=0.313, and y=0.329, error range can be ± 0.03.
Optionally, described device further include:
Image capture device, for obtaining the display picture of the display screen；
The correction module is specifically used for obtaining the optical parameter of each test zone according to acquired display picture.
Wherein, image capture device can clap display screen using colored CCD with colored CCD (charge-coupled device)
According to the display picture that can obtain display screen.
Optionally, the optical parameter target value includes brightness target value, described device further include:
Brightness target value obtains module, for the grayscale of N number of test zone to be adjusted to highest grayscale, other regions
Grayscale be adjusted to minimum gray scale；The display picture that the display screen is obtained using image capture device is shown according to acquired
Show that picture determines the brightness of each test zone respectively, the Benchmark brightness of the highest grayscale is corresponded to as each test zone；
The corresponding brightness target value for tying up a grayscale is calculated according to the Benchmark brightness of each test zone.
Optionally, the correction module includes:
First correction unit, is adjusted for the G register value to each test zone, so that each test zone
Chromaticity coordinates y value is fallen into the error range of chromaticity coordinates y target value；
Second correction unit, is adjusted for the B-register value to each test zone, so that each test zone
Brightness value is fallen into the error range of brightness target value；
Third corrects unit, is adjusted for the R register value to each test zone, so that each test zone
Chromaticity coordinates x value is fallen into the error range of chromaticity coordinates x target value.
In the present embodiment, first the G register value of each test zone is adjusted, so that the color of each test zone is sat
Mark y value is met the requirements, and then the B-register value of each test zone is adjusted again, so that the brightness of each test zone
It meets the requirements, finally the R register value of each test zone is adjusted again, so that the chromaticity coordinates x value of each test zone
It meets the requirements, can be realized the debugging of gamma electric voltage.
In one specific embodiment, N can be the number for tying up a grayscale, in this way can be in a parallel fashion simultaneously to whole
A N number of grayscale of tying up is adjusted, and can reduce the time of gamma correction to the full extent, improves production efficiency.
With reference to the accompanying drawing and gamma electric voltage correcting scheme of the invention is described further in specific embodiment:
The gamma electric voltage correcting scheme of the present embodiment is applied to including CCD, the system for calculating equipment and OLED display module
In, host computer can specifically be used by calculating equipment, and CCD can take pictures to the display screen of OLED display module, calculate equipment
Result of taking pictures can be handled to obtain required data, and be shown according to data-driven display module.
Assuming that the OLED display module of the present embodiment has 255 grayscale, tying up a grayscale for 9 is successively: G0, G32, G64,
G96, G128, G160, G192, G224 and G255.Because of the reason of IR drop, when display screen shows the same grey menu,
Brightness everywhere be it is different, since OLED mould group has 9 to tie up a grayscale, entire display screen is divided into 9*9 by the present embodiment
A region, in order to utmostly reduce influence of the horizontal and vertical display content to IR drop, as shown in figure 3, choosing 9 rows
Mutually different region A~I is arranged as test zone, the grayscale of test zone A~I is adjusted to G255, remaining region is black
Picture, i.e., test pictures 1 as shown in Figure 3.Using high speed, high-precision, colored CCD to display test pictures 1 display screen into
Row is taken pictures, and the brightness that each test zone corresponds to grayscale 255 can be obtained by calculating equipment according to result of taking pictures, as shown in table 1, most
A line is the brightness that each test zone corresponds to grayscale 255 afterwards.
The corresponding brightness target value for respectively tying up a grayscale of each test zone of table 1
It calculates equipment and according to grayscale-brightness-formula can calculate each test zone and correspond to each grayscale and tie up luma target a little
Value, as shown in table 1, for example, correspond to the brightness of grayscale 255 for 806.2 (nits), then according to the CCD available test zone A that takes pictures
Can be calculated test zone A and correspond to the brightness target value of grayscale 32 is 8.4, and test zone A corresponds to the luma target of grayscale 64
Value is 38.5, and the brightness target value that test zone A corresponds to grayscale 96 is 94.0, and test zone A corresponds to the luma target of grayscale 128
Value is 177.0, and the brightness target value that test zone A corresponds to grayscale 160 is 289.1, and test zone A corresponds to the brightness of grayscale 192
Target value is 431.8, and the brightness target value that test zone A corresponds to grayscale 224 is 606.2, and so on, available each test
The corresponding brightness target value for respectively tying up a grayscale in region, and gamma correction can be carried out according to the brightness target value.
It calculates equipment to send as shown in Figure 4 to display module comprising all test pictures 2 for tying up a grayscale, such as Fig. 4 institute
Show, each test zone corresponding one ties up a grayscale, and different test zones are corresponding to tie up a grayscale difference, for example, H pairs of test zone
The grayscale of tying up answered is G255, and the corresponding test grayscale of test zone C is G224.Using CCD to the display screen of display module into
Row is taken pictures, according to take pictures fructufy when obtain brightness and the chromaticity coordinates of each test zone, the RGB of each test zone is posted
Storage value is adjusted, so that the brightness of each test zone is fallen in the error range of brightness target value, each test zone
Chromaticity coordinates fall in the error range of chromaticity coordinates target value, specifically, to meet Gamma2.2 ± 0.2 and white balance (x=
0.313 ± 0.03, y=0.329 ± 0.03) requirement.
Specific adjustment process first determines whether that the chromaticity coordinates y of test zone is as shown in figure 5, for each test zone
It is no to be equal to target value (i.e. 0.326-0.332), if it is not, then judging whether chromaticity coordinates y is greater than target value, if chromaticity coordinates y
Greater than target value, then G register value is raised, i.e. the corresponding data voltage (Vdata_ of up-regulation test zone green sub-pixels
Green), if chromaticity coordinates y is less than target value, G register value is lowered, i.e. the corresponding number of downward test zone green sub-pixels
According to voltage, until chromaticity coordinates y is equal to target value；After chromaticity coordinates y is equal to target value, judge whether the brightness of test zone is equal to
Brightness target value judges whether the brightness of test zone is greater than brightness if the brightness of test zone is not equal to brightness target value
Target value raises B-register value if the brightness of test zone is greater than brightness target value, i.e. up-regulation test zone blue
The corresponding data voltage of pixel (Vdata_Blue) lowers B-register if the brightness of test zone is less than brightness target value
Value, the i.e. corresponding data voltage (Vdata_Blue) of downward test zone blue subpixels, until brightness is equal to target value；Bright
After degree is equal to brightness target value, judge whether the chromaticity coordinates x of test zone is equal to target value (i.e. 0.310-0.316), if not
Be then to judge whether chromaticity coordinates x is greater than target value, if chromaticity coordinates x is greater than target value, raise R register value, i.e., upper commissioning
It tries the corresponding data voltage (Vdata_Red) of Regional Red sub-pixel and lowers R register if chromaticity coordinates x is less than target value
Value, the i.e. corresponding data voltage of downward test zone red sub-pixel, until chromaticity coordinates x is equal to target value.
The correction of gamma electric voltage can be completed by above-mentioned steps.It is worth noting that, the tune of above-mentioned each test zone
Concurrent process is saved to carry out.
It in the present embodiment, takes pictures, all can be tied up simultaneously in a parallel fashion to display screen by using colored CCD
Point grayscale is adjusted, and by G- > B- > R adjustment sequential adjustment, is realized the gamma electric voltage fast debugging of OLED mould group, is compared
The gamma correction time is greatly shortened under the premise of guaranteeing precision in the method for traditional point-by-point adjustment, production can be improved
Efficiency.
The embodiment of the invention also provides a kind of gamma electric voltage calibration equipments, comprising: memory, processor and is stored in
On reservoir and the computer program that can run on a processor, realized when the computer program is executed by the processor as above
Step in the gamma electric voltage bearing calibration.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program is realized when being executed by processor in gamma electric voltage bearing calibration as described above
Step.
It is to be appreciated that all the embodiments in this specification are described in a progressive manner, phase between each embodiment
It may refer to each other with similar part, each embodiment focuses on the differences from other embodiments.In particular,
For embodiment, since it is substantially similar to product embodiments, so describing fairly simple, related place is referring to product
The part of embodiment illustrates.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but may include electrical connection, it is either direct or indirectly."upper", "lower",
"left", "right" etc. is only used for indicating relative positional relationship, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
It is appreciated that ought such as layer, film, region or substrate etc element be referred to as be located at another element "above" or "below"
When, which " direct " can be located at "above" or "below" another element, or may exist intermediary element.
In the description of above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure should be based on the protection scope of the described claims.
Claims (13)
1. a kind of gamma electric voltage bearing calibration characterized by comprising
The display screen of display module is divided into N*N region, wherein N is the integer greater than 1；
N number of test zone is selected from N*N region, the ranks of N number of test zone are different；
The grayscale of each test zone is adjusted to one and ties up a grayscale, different test zones are corresponding to tie up a grayscale difference, to every
One test zone inputs a RGB register initial value, the optical parameter of each test zone is obtained, to each test zone
RGB register value is adjusted, so that the optical parameter of each test zone is fallen in the error range of optical parameter target value.
2. gamma electric voltage bearing calibration according to claim 1, which is characterized in that the optical parameter includes brightness and color
Coordinate.
3. gamma electric voltage bearing calibration according to claim 2, which is characterized in that the light for obtaining each test zone
Learning parameter includes:
The display picture that the display screen is obtained using image capture device obtains each test according to acquired display picture
The optical parameter in region.
4. gamma electric voltage bearing calibration according to claim 2, which is characterized in that the optical parameter target value includes bright
Target value is spent, it is described to obtain each test section the method also includes obtaining the brightness target value of each test zone
The step of brightness target value in domain includes:
The grayscale of N number of test zone is adjusted to highest grayscale, the grayscale in other regions is adjusted to minimum gray scale；
The display picture that the display screen is obtained using image capture device is determined each respectively according to acquired display picture
The brightness of test zone corresponds to the Benchmark brightness of the highest grayscale as each test zone；
The corresponding brightness target value for tying up a grayscale is calculated according to the Benchmark brightness of each test zone.
5. gamma electric voltage bearing calibration according to claim 2, which is characterized in that the RGB to each test zone
Register value is adjusted, so that the optical parameter of each test zone falls in packet in the error range of optical parameter target value
It includes:
The G register value of each test zone is adjusted, so that the chromaticity coordinates y value of each test zone falls into chromaticity coordinates y
In the error range of target value；
The B-register value of each test zone is adjusted, so that the brightness value of each test zone falls into brightness target value
Error range in；
The R register value of each test zone is adjusted, so that the chromaticity coordinates x value of each test zone falls into chromaticity coordinates x
In the error range of target value.
6. gamma electric voltage bearing calibration according to claim 1, which is characterized in that N is the number for tying up a grayscale.
7. a kind of gamma electric voltage means for correcting characterized by comprising
Division module, for the display screen of display module to be divided into N*N region, wherein N is the integer greater than 1；
Selecting module, for selecting N number of test zone from N*N region, the ranks of N number of test zone are different；
Correction module ties up a grayscale for the grayscale of each test zone to be adjusted to one, and different test zones are corresponding to be tied up a little
Grayscale is different, inputs a RGB register initial value to each test zone, the optical parameter of each test zone is obtained, to every
The RGB register value of one test zone is adjusted, so that the optical parameter of each test zone falls in optical parameter target value
Error range in.
8. gamma electric voltage means for correcting according to claim 7, which is characterized in that the optical parameter includes brightness and color
Coordinate.
9. gamma electric voltage means for correcting according to claim 8, which is characterized in that described device further include:
Image capture device, for obtaining the display picture of the display screen；
The correction module is specifically used for obtaining the optical parameter of each test zone according to acquired display picture.
10. gamma electric voltage means for correcting according to claim 8, which is characterized in that the optical parameter target value includes
Brightness target value, described device further include:
Brightness target value obtains module, for the grayscale of N number of test zone to be adjusted to highest grayscale, the ash in other regions
Rank is adjusted to minimum gray scale；The display picture that the display screen is obtained using image capture device, according to acquired display picture
Face determines the brightness of each test zone respectively, and the Benchmark brightness of the highest grayscale is corresponded to as each test zone；According to
The Benchmark brightness of each test zone calculates the corresponding brightness target value for tying up a grayscale.
11. gamma electric voltage means for correcting according to claim 8, which is characterized in that the correction module includes:
First correction unit, is adjusted, so that the color of each test zone is sat for the G register value to each test zone
Mark y value is fallen into the error range of chromaticity coordinates y target value；
Second correction unit, is adjusted, so that the brightness of each test zone for the B-register value to each test zone
Value is fallen into the error range of brightness target value；
Third corrects unit, is adjusted for the R register value to each test zone, so that the color of each test zone is sat
Mark x value is fallen into the error range of chromaticity coordinates x target value.
12. a kind of gamma electric voltage calibration equipment characterized by comprising memory, processor and storage are on a memory and can
The computer program run on a processor realizes such as claim 1 to 5 when the computer program is executed by the processor
Any one of described in gamma electric voltage bearing calibration in step.
13. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the gamma electric voltage correction as described in any one of claims 1 to 5 when the computer program is executed by processor
Step in method.
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