CN104091565B - The full frame Concordance method and system of display device - Google Patents

Abstract

The invention discloses a kind of full frame Concordance method and system of display device, its method includes step: after display device is completed concordance Subarea calibration, selects the area the second subregion less than the first corresponding subregion in each first subregion；Control the second subregion to carry out single signal amount and show, and shoot display device, the pixel value photographed when obtaining the second multi-section display single signal amount；The Parameters Transformation matrix of signal source and filming apparatus is determined according to the pixel value photographed；First object value is determined according to the pixel value photographed and default goal condition；Determining the second desired value according to first object value and Parameters Transformation matrix, wherein, the second desired value is the target pixel value relative to signal source；According to the full frame correction matrix that the second desired value is determined；According to full frame correction matrix, discrete pixel light emission unit is corrected, adopts the present invention program, it is possible to reduce the impact of block effect, improve the full frame concordance of display device.

Description

The full frame Concordance method and system of display device

Technical field

The present invention relates to Display Technique field, particularly relate to a kind of full frame Concordance method and system of display device.

Background technology

Along with the fast development of flat panel display, combination Display Technique and image display technology, display device have towards large area, digitized, high-resolution development trend, thus, the requirement of the indexs such as the uniformity of flat faced display is also more and more higher.The large-area flat-plate display that existing flat faced display is particularly made up of discrete light-emitting pixel cell (group), owing to discrete light-emitting pixel cell (group) itself has discrete type, and discrete light-emitting pixel cell (group) enormous amount, each discrete light-emitting pixel cell (group) the optical color parameter dispersion making flat faced display is bigger, cause the inhomogeneities of flat faced display brightness, colourity, make flat faced display concordance poor, have a strong impact on the image displaying quality of display, become the bottleneck of restriction large screen flat plate display development.In addition, for the flat faced display being made up of discrete light-emitting pixel cell (group), there is also owing to luminescent device or display group pixel certainly exist physical characteristic or photochromic difference when making, too increase the discordance of the image that flat faced display shows.

The common flat faced display being made up of discrete light-emitting pixel cell (group) is the LED display being made up of LED dot matrix, and namely discrete light-emitting pixel cell (group) is LED point.LED display is because its brightness is high, operating power consumption is little, life-span length, steady performance, in widespread attention, and obtains and develop rapidly, is widely used in outside the different chamber such as stadiums, bank, security, the advertising in indoor place.LED display is made up of the LED dot matrix of hundreds and thousands of ten thousand, there is the color difference opposite sex between the LED of same batch, and the color difference opposite sex between different batches is then bigger, and this is accomplished by it is carried out bright chroma Concordance.

Traditional mode is to adopt the mode that photographing unit is taken pictures that flat faced display colour consistency is corrected.The mode that photographing unit is taken pictures has that correction rate is fast, can realize the features such as pointwise correction.But owing to flat faced display pixel is excessive, photographing unit is difficult to once photograph on a sheet photo by all vertical light emitting pixel unit (group), such as, photographing unit is difficult to once photograph on a sheet photo by each for Grand LED Screen LED point, so subregion shooting must be carried out, then carrying out pointwise correction again, so can produce block effect, namely the bright chroma after each Subarea calibration is different.

Summary of the invention

It is an object of the invention to provide a kind of full frame Concordance method and system of display device, it is possible to reduce the impact of block effect, improve the full frame concordance of display device.

The purpose of the present invention is achieved through the following technical solutions:

A kind of full frame Concordance method of display device, comprises the steps:

After display device is completed concordance Subarea calibration, each first subregion that described concordance Subarea calibration is corresponding selects area the second subregion less than the first corresponding subregion respectively；

Control the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs；

The Parameters Transformation matrix between signal source and the described filming apparatus of corresponding current second subregion is determined according to described pixel value；

Determine the first object value of corresponding described current second subregion according to described pixel value and default goal condition, wherein, described first object value is the target pixel value relative to described filming apparatus；

Determine the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

The full frame correction matrix of corresponding described current second subregion is determined according to described second desired value；

According to described full frame correction matrix, each discrete pixel light emission unit in the first subregion corresponding to current second subregion is corrected.

A kind of full frame Concordance system of display device, including:

Region selection module, for, after display device is completed concordance Subarea calibration, selecting the area the second subregion less than the first corresponding subregion in each first subregion that described concordance Subarea calibration is corresponding；

Control module, for controlling the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs；

First processing module, for determining the described signal source of corresponding current second subregion and the Parameters Transformation matrix of described filming apparatus according to described pixel value；

Second processing module, determines the first object value of corresponding described current second subregion according to described pixel value and default goal condition, and wherein, described first object value is the target pixel value relative to described filming apparatus；

3rd processing module, for determining the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

Fourth processing module, for determining the full frame correction matrix of corresponding described current second subregion according to described second desired value；

Correction module, for being corrected each discrete pixel light emission unit in the first subregion corresponding to current second subregion according to described full frame correction matrix.

Scheme according to the invention described above, it is after display device is completed concordance Subarea calibration, each first subregion that described concordance Subarea calibration is corresponding selects the area the second subregion less than the first corresponding subregion, control the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs, and determine the corresponding signal source of current second subregion and the Parameters Transformation matrix of filming apparatus and the first object value for described filming apparatus based on this pixel value, again based on this first object value and described Parameters Transformation matrix determine corresponding described current second subregion relative to described signal source the second desired value, the full frame correction matrix of corresponding described current second subregion is determined according to described second desired value, according to described full frame correction matrix, each discrete pixel light emission unit in the first subregion corresponding to current second subregion is corrected, adopt the solution of the present invention that each discrete pixel light emission unit is corrected, the impact of block effect can be reduced, improve the full frame concordance of display device.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of the embodiment of the full frame Concordance method of display device of the present invention；

Fig. 2 is subregion schematic diagram；

Fig. 3 is the refinement schematic flow sheet in the embodiment wherein of the step S104 in Fig. 1；

Fig. 4 is the refinement schematic flow sheet in the embodiment wherein of the step S106 in Fig. 1；

Fig. 5 is the refinement schematic flow sheet in the embodiment wherein of the step S107 in Fig. 1；

Fig. 6 is the structural representation of the embodiment of the full frame Concordance system of display device of the present invention；

Fig. 7 is the refined structure schematic diagram in Fig. 6 in the second processing module embodiment wherein；

Fig. 8 is the refined structure schematic diagram in Fig. 6 in a fourth processing module embodiment wherein；

Fig. 9 is the refined structure schematic diagram in Fig. 6 in a correction module embodiment wherein.

Detailed description of the invention

For making the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that detailed description of the invention described herein is only in order to explain the present invention, does not limit protection scope of the present invention.

In the following description, the embodiment first against the full frame Concordance method of display device of the present invention illustrates, more each embodiment of the display device full frame Concordance system of the present invention is illustrated.

Shown in Figure 1, for the schematic flow sheet of embodiment of the full frame Concordance method of display device of the present invention.As it is shown in figure 1, the full frame Concordance method of display device in the present embodiment comprises the steps:

Step S101: after display device is completed concordance Subarea calibration, selects the area the second subregion less than the first corresponding subregion in each first subregion that described concordance Subarea calibration is corresponding；

Display device completes concordance Subarea calibration can adopt existing mode to realize, and does not repeat them here；

When display device is carried out concordance Subarea calibration, the former penalty coefficient matrix of each discrete pixel light emission unit can be obtained, by this former penalty coefficient matrix, corresponding discrete pixel light emission unit can be corrected, namely display device is completed concordance Subarea calibration；

Second subregion is to separate a part of region in the first subregion, second subregion can in the optional position of the first corresponding subregion, but for the ease of distinguishing each second subregion, there is interval between the second subregion that the first generally adjacent subregion is corresponding as far as possible, the area of the second subregion can be set according to actual needs, generally requires that the area of each second subregion is identical；Such as, display device to be corrected is sized to 1280*1280 (in units of pixel, as follows), it is divided into 4 the first subregions and carries out Subarea calibration, namely each first subregion be sized to 320*320, if the second subregion accounts for the 1/4 of the first Division area, then each second subregion be sized to 160*160, as shown in Figure 2, it is the central area of the first subregion being distributed in correspondence for the second subregion, but the distribution mode that those skilled in the art are to be understood that the second subregion is not limited to this；

Step S102: control the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs；

Wherein, single signal amount includes R signal amount, G-signal amount, B semaphore, the signal source R (255 of described display device can be controlled, 0, 0), signal source G (0, 255, 0), signal source B (0, 0, 255) the second subregion is made to show R signal amount respectively, G-signal amount, B semaphore, normally only the second multi-section display single signal amount, and the region display black beyond the second subregion, often one single signal amount of display, filming apparatus is all utilized to shoot the display screen of described display device, the pixel value of the image that device photographs is taken the photograph described in when can obtain described second multi-section display single signal amount, this pixel value includes the pixel value that each second subregion is photographed by camera head, it is to be understood that, the pixel value that described filming apparatus in the present embodiment photographs refers to the pixel value of the image photographed；

Filming apparatus in the present embodiment refers generally to photographing unit, but is also not necessarily limited to this, for instance, it is also possible to it is high-resolution photographic head；

In order to improve shooting effect and calibration result, wherein in an embodiment, after each first subregion that described concordance Subarea calibration is corresponding selects the area the second subregion less than the first corresponding subregion, before utilizing filming apparatus to shoot described display device, step can also be included: the parameter of described filming apparatus is regulated extremely described filming apparatus and can photograph the full frame of described display device and the gap between each described discrete pixel light emission unit can not be told, that is, filming apparatus is made disposable can all to photograph the whole display screen body of display device, and the gap between discrete pixel light emission unit can not be told, a big discrete pixel light emission cell processing it is used as respectively by each second subregion；

It should be noted that, the photographing unit pointed out in the introduction is difficult to once photograph on a sheet photo by all LED points, and in the present embodiment, require that filming apparatus can photograph the full frame of display device, both are contradiction not, because what set forth in background technology is Subarea calibration, needs during Subarea calibration can clearly tell each discrete pixel light emission unit, and the present embodiment need not be told each discrete pixel light emission unit；

Step S103: determine the described signal source of corresponding current second subregion and the Parameters Transformation matrix of described filming apparatus according to described pixel value, specifically, it is possible to determine described Parameters Transformation matrix by formula below (1)；

$\left[\begin{array}{ccc}255& 0& 0\\ 0& 255& 0\\ 0& 0& 255\end{array}\right]=T\·\left[\begin{array}{ccc}{R}_{\mathrm{Ri}}& G_{\mathrm{Ri}}& B_{\mathrm{Ri}}\\ R_{\mathrm{Gi}}& G_{\mathrm{Gi}}& B_{\mathrm{Gi}}\\ R_{\mathrm{Bi}}& G_{\mathrm{Bi}}& B_{\mathrm{Bi}}\end{array}\right]---\left(1\right)$

R_Ri、R_Gi、R_BiR signal amount is shown for display device, namely during (255,0,0) semaphore, the pixel value that filming apparatus photographs；In like manner, G_Ri、G_Gi、G_BiDuring for display device display display (0,255,0) semaphore, the pixel value that filming apparatus photographs；B_Ri、B_Gi、B_BiWhen showing (0,0,255) semaphore for display device, the pixel value that filming apparatus photographs；Wherein, owing to the second subregion is made up of a lot of pixels, R_Ri、R_Gi、R_Bi、G_Ri、G_Gi、G_Bi、B_Ri、B_Gi、B_BiGenerally refer to the meansigma methods of the second each pixel respective value of subregion, T is Parameters Transformation matrix, i is 1,2,3 ..., n, n is the number of the second subregion, and the pixel value photographed by filming apparatus corresponding for current second subregion substitutes into formula (1) and can be obtained by the described signal source of corresponding current second subregion and the Parameters Transformation matrix of described filming apparatus；

Step S104: determine the first object value of corresponding described current second subregion according to described pixel value and default goal condition, wherein, described first object value is the target pixel value relative to described filming apparatus；

Wherein, goal condition can require to be set according to intrinsic brilliance；

Specifically, wherein in an embodiment, as it is shown on figure 3, determine that the first object value of corresponding described current second subregion may include steps of according to described pixel value and default goal condition:

Step S301: the color space conversion being made up of R, G, B by the pixel value of corresponding described current second subregion is to the color space being made up of X, Y, Z；

Specifically, it is possible to realized by formula below (2), (3), (4), namely set up the relation between the pixel value and the CIEXYZ (a kind of parameter describing amount of color of International Commission on Illumination) that photograph；

$\left[\begin{array}{c}{X}_{\mathrm{Ri}}\\ Y_{\mathrm{Ri}}\\ Z_{\mathrm{Ri}}\end{array}\right]=\mathrm{sRGB}\·\left[\begin{array}{c}{R}_{\mathrm{Ri}}\\ G_{\mathrm{Ri}}\\ B_{\mathrm{Ri}}\end{array}\right]---\left(2\right)$

$\left[\begin{array}{c}{X}_{\mathrm{Gi}}\\ Y_{\mathrm{Gi}}\\ Z_{\mathrm{Gi}}\end{array}\right]=\mathrm{sRGB}\·\left[\begin{array}{c}{R}_{\mathrm{Gi}}\\ G_{\mathrm{Gi}}\\ B_{\mathrm{Gi}}\end{array}\right]---\left(3\right)$

$\left[\begin{array}{c}{X}_{\mathrm{Bi}}\\ Y_{\mathrm{Bi}}\\ Z_{\mathrm{Bi}}\end{array}\right]=\mathrm{sRGB}\·\left[\begin{array}{c}{R}_{\mathrm{Bi}}\\ G_{\mathrm{Bi}}\\ B_{\mathrm{Bi}}\end{array}\right]---\left(4\right)$

Corresponding for current second subregion pixel value is substituted into color space conversion that the pixel value of described current second subregion of correspondence just can be made up of by formula (2), (3), (4) R, G, B to the color space being made up of X, Y, Z；

Step S302: determine the 3rd desired value relative to described filming apparatus according to the value after color space conversion and described goal condition；

Owing to being the corresponding color space being made up of X, Y, Z in the value after the color space conversion of step S301, therefore the 3rd desired value is also the corresponding color space being made up of X, Y, Z；

This goal condition is determined according to actual needs, but this goal condition is generally referred to corresponding the setting according to the value after color space conversion of all second subregions, for instance, goal condition can also be the minima of the value after taking the color space conversion of each second subregion；

Step S303: the color space conversion described 3rd desired value being made up of X, Y, Z, to the color space being made up of R, G, B, obtains the first object value of corresponding described current second subregion；

Color space conversion that described 3rd desired value can be made up of by matrix inversion conversion X, Y, Z is carried out to the color space being made up of R, G, B according to above-mentioned formula (2), (3), (4), specifically, can by the left side (2) taking above-mentioned formula to corresponding for the 3rd desired value, (3), (4) matrix in obtain the pixel value that is made up of R, G, B, do not repeat them here；

In this embodiment, it is the color space conversion that is first made up of R, G, B of described pixel value to the color space being made up of X, Y, Z, the 3rd desired value is determined further according to goal condition, then the color space conversion the 3rd desired value being made up of X, Y, Z again is to the color space being made up of R, G, B, it should be noted that determine that the mode of first object value is not limited to this, for instance, can also be determined by some empirical equations, or directly be set by user；

Step S105: determine the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

Matrix first object value constituted is made matrix multiplication operation with Parameters Transformation matrix and can be obtained the second desired value；

Step S106: determine the full frame correction matrix of corresponding described current second subregion according to described second desired value；

Wherein in an embodiment, as shown in Figure 4, determine that the full frame correction matrix of corresponding described current second subregion can specifically include following steps according to described second desired value:

Step S401: determine the initial full frame correction matrix of corresponding described current second subregion according to described second desired value；

Specifically, it is possible to determined by equation below (5)；

$\left[\begin{array}{ccc}{k}_{\mathrm{RRi}}^{\′}& k_{\mathrm{GRi}}^{\′}& k_{\mathrm{BRi}}^{\′}\\ k_{\mathrm{RGi}}^{\′}& k_{\mathrm{GGi}}^{\′}& k_{\mathrm{BGi}}^{\′}\\ k_{\mathrm{RBi}}^{\′}& k_{\mathrm{GBi}}^{\′}& k_{\mathrm{BBi}}^{\′}\end{array}\right]=\left[\begin{array}{ccc}{R^{\′}}_{\mathrm{Ri}}& {R^{\′}}_{\mathrm{Ri}}& {B^{\′}}_{\mathrm{Ri}}\\ {R^{\′}}_{\mathrm{Gi}}& {G^{\′}}_{\mathrm{Gi}}& {B^{\′}}_{\mathrm{Gi}}\\ {R^{\′}}_{\mathrm{Bi}}& {G^{\′}}_{\mathrm{Bi}}& {B^{\′}}_{\mathrm{Bi}}\end{array}\right]\·{\left[\begin{array}{ccc}255& 0& 0\\ 0& 255& 0\\ 0& 0& 255\end{array}\right]}^{-1}---\left(5\right)$

Wherein: R '_Ri、R′_Gi、R′_BiDesired value during for display (255,0,0) of display device, in like manner, G '_Ri、G′_Gi、G′_BiDesired value during (0,255,0) semaphore is shown for LED screen；B '_Ri、B′_Gi、B′_BiShowing desired value during (0,0,255) semaphore for LED screen, all corresponding described second desired value of these desired values, relative to the target pixel value of described signal source；When certain parameter in matrix is more than 1, then make this parameter equal to 1, the second corresponding for current second subregion desired value is substituted into formula (5), it is possible to obtain the initial full frame correction matrix of corresponding described current second subregion；

Step S402: utilize the initial full frame correction matrix of each described second subregion that the initial full frame correction matrix of described current second subregion is normalized the full frame correction matrix obtaining corresponding described current second subregion；

The initial full frame correction matrix of each second subregion can be determined according to aforesaid way, the initial full frame correction matrix of described current second subregion is normalized the full frame correction matrix obtaining corresponding described current second subregion by the initial full frame correction matrix recycling each described second subregion, and this full frame correction matrix can be obtained by following formula:

$\left[\begin{array}{ccc}\frac{{k^{\′}}_{\mathrm{RRi}}}{{k^{\′}}_{\mathrm{RR}\max }}& \frac{{k^{\′}}_{\mathrm{GRi}}}{{k^{\′}}_{\mathrm{GR}\max }}& \frac{{k^{\′}}_{\mathrm{BRi}}}{{k^{\′}}_{\mathrm{BR}\max }}\\ \frac{{k^{\′}}_{\mathrm{RGi}}}{{k^{\′}}_{\mathrm{RG}\max }}& \frac{{k^{\′}}_{\mathrm{GGi}}}{{k^{\′}}_{\mathrm{GG}\max }}& \frac{{k^{\′}}_{\mathrm{BGi}}}{{k^{\′}}_{\mathrm{BG}\max }}\\ \frac{{k^{\′}}_{\mathrm{RBi}}}{{k^{\′}}_{\mathrm{RB}\max }}& \frac{{k^{\′}}_{\mathrm{GBi}}}{{k^{\′}}_{\mathrm{GB}\max }}& \frac{{k^{\′}}_{\mathrm{BBi}}}{{k^{\′}}_{\mathrm{BB}\max }}\end{array}\right],$ Wherein, the parameter of lower marker tape max is the maximum in each second subregion correspondence parameter, for instance, k '_RRmaxIt is each k '_RRiMaximum；

Wherein it is determined that the mode of the full frame correction matrix of current second subregion also and is limited to the mode in above-described embodiment, for instance, it is possible to being obtained by the deformation formula that arbitrarily can realize, at this, it will not go into details；

Step S107: each discrete pixel light emission unit in the first subregion corresponding to current second subregion is corrected according to described full frame correction matrix；

Wherein in an embodiment, as it is shown in figure 5, be corrected may include steps of to each discrete pixel light emission unit in the first subregion corresponding to current second subregion according to described full frame correction matrix:

Step S501: the former penalty coefficient matrix multiple of the discrete pixel light emission unit first subregion in corresponding with current second subregion respectively by described full frame correction matrix obtains the penalty coefficient matrix again of corresponding each discrete pixel light emission unit, wherein, described former penalty coefficient matrix is obtained after display device being completed concordance Subarea calibration；

Step S502: according to this discrete pixel light emission unit that penalty coefficient matrix is corresponding again of the described matrix correction of penalty coefficient again；

Discrete pixel light emission unit in the present embodiment generally refers to LED point, but being also not limited to is the situation of LED point；

Circulation performs above-mentioned steps S103 to step S107 can complete the correction to each discrete pixel light emission unit in each first subregion of display device.

Accordingly, scheme according to above-mentioned the present embodiment, it is after display device is completed concordance Subarea calibration, each first subregion that described concordance Subarea calibration is corresponding selects the area the second subregion less than the first corresponding subregion, control the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs, and the pixel value photographed based on this determines the corresponding signal source of current second subregion and the Parameters Transformation matrix of filming apparatus and first object value (first object value is the target pixel value relative to described filming apparatus), second desired value (the second desired value is the target pixel value relative to described signal source) of corresponding described current second subregion is determined again based on this first object value and described Parameters Transformation matrix, the full frame correction matrix of corresponding described current second subregion is determined according to described second desired value, according to described full frame correction matrix, each discrete pixel light emission unit in the first subregion corresponding to current second subregion is corrected, adopt the solution of the present invention that each discrete pixel light emission unit is corrected, the impact of block effect can be reduced, improve the full frame concordance of display device.

The full frame Concordance maintaining method of display device according to the invention described above, the present invention also provides for a kind of full frame Concordance of display device and safeguards system, safeguards that the embodiment of system is described in detail with regard to the full frame Concordance of the display device of the present invention below.Fig. 6 has illustrated the structural representation of the embodiment of the full frame Concordance maintenance system of display device of the present invention.For the ease of illustrating, merely illustrate part related to the present invention in figure 6.

As shown in Figure 6, the full frame Concordance of display device in the present embodiment safeguards system, including:

Region selection module 601, for, after display device is completed concordance Subarea calibration, selecting the area the second subregion less than the first corresponding subregion in each first subregion that described concordance Subarea calibration is corresponding；

Control module 602, for controlling the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs；

First processing module 603, for determining the described signal source of corresponding current second subregion and the Parameters Transformation matrix of described filming apparatus according to described pixel value；

Second processing module 604, determines the first object value of corresponding described current second subregion according to described pixel value and default goal condition, and wherein, described first object value is the target pixel value relative to described filming apparatus；

3rd processing module 605, for determining the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

Fourth processing module 606, for determining the full frame correction matrix of corresponding described current second subregion according to described second desired value；

Correction module 607, for being corrected each discrete pixel light emission unit in the first subregion corresponding to current second subregion according to described full frame correction matrix.

Wherein in an embodiment, above-mentioned control module 602 can be also used for that the parameter of described filming apparatus regulates extremely described filming apparatus and can photograph the full frame of described display device and can not tell the gap between each described discrete pixel light emission unit.

Wherein in an embodiment, as it is shown in fig. 7, the second above-mentioned processing module 604 may include that

First converting unit 701, for the color space conversion that is made up of R, G, B by the pixel value of corresponding described current second subregion to the color space being made up of X, Y, Z；

First data processing unit 702, for determining the 3rd desired value relative to described filming apparatus according to the value after color space conversion and described goal condition；

Second converting unit 703, the color space conversion being used for being made up of described 3rd desired value X, Y, Z, to the color space being made up of R, G, B, obtains the first object value of corresponding described current second subregion.

Wherein in an embodiment, as shown in Figure 8, fourth processing module 606 may include that

Second data processing unit 801, for determining the initial full frame correction matrix of corresponding described current second subregion according to described second desired value；

Normalization unit 802, obtains the full frame correction matrix of corresponding described current second subregion for utilizing the initial full frame correction matrix of each described second subregion that the initial full frame correction matrix of described current second subregion is normalized.

Wherein in an embodiment, as it is shown in figure 9, correction module 607 may include that

3rd data processing unit 901, the penalty coefficient matrix again of corresponding each discrete pixel light emission unit is obtained for the former penalty coefficient matrix multiple of the discrete pixel light emission unit in the first subregion that described full frame correction matrix is corresponding with current second subregion respectively, wherein, described former penalty coefficient matrix is obtained after display device being completed concordance Subarea calibration；

Correction unit 902, for according to this discrete pixel light emission unit that penalty coefficient matrix is corresponding again of the described matrix correction of penalty coefficient again.

The full frame Concordance of display device of the present invention safeguards the full frame Concordance maintaining method one_to_one corresponding of display device of system and the present invention, the technical characteristic set forth in the embodiment of above-mentioned display device full frame Concordance maintaining method and beneficial effect thereof are all safeguarded the embodiment of system suitable in the full frame Concordance of display device, hereby give notice that.

Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. the full frame Concordance method of display device, it is characterised in that comprise the steps:

After display device is completed concordance Subarea calibration, each first subregion that described concordance Subarea calibration is corresponding selects area the second subregion less than the first corresponding subregion respectively；

Control the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs, wherein, described single signal amount includes R signal amount, G-signal amount, B semaphore；

The Parameters Transformation matrix between signal source and the described filming apparatus of corresponding current second subregion is determined according to described pixel value；

Determine the first object value of corresponding described current second subregion according to described pixel value and default goal condition, wherein, described first object value is the target pixel value relative to described filming apparatus；

Determine the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

The full frame correction matrix of corresponding described current second subregion is determined according to described second desired value；

According to described full frame correction matrix, each discrete pixel light emission unit in the first subregion corresponding to current second subregion is corrected；

Wherein, determine that the first object value of corresponding described current second subregion includes step according to described pixel value and default goal condition:

The color space conversion being made up of R, G, B by the pixel value of corresponding described current second subregion is to the color space being made up of X, Y, Z；

Determining the 3rd desired value relative to described filming apparatus according to the value after color space conversion and described goal condition, described goal condition is the minima of the value after taking the color space conversion of each second subregion；

The color space conversion described 3rd desired value being made up of X, Y, Z, to the color space being made up of R, G, B, obtains the first object value of corresponding described current second subregion.

2. the full frame Concordance method of display device according to claim 1, it is characterized in that, each first subregion that described concordance Subarea calibration is corresponding selects area less than after the second subregion of the first corresponding subregion, utilize filming apparatus to shoot described display device before, further comprise the steps of:

The parameter of described filming apparatus regulates extremely described filming apparatus to photograph the full frame of described display device and the gap between each described discrete pixel light emission unit can not be told.

3. the full frame Concordance method of display device according to claim 1, it is characterised in that determine that according to described second desired value the full frame correction matrix of corresponding described current second subregion includes step:

The initial full frame correction matrix of corresponding described current second subregion is determined according to described second desired value；

The initial full frame correction matrix of described current second subregion is normalized the full frame correction matrix obtaining corresponding described current second subregion by the initial full frame correction matrix utilizing each described second subregion.

4. the full frame Concordance method of display device according to claim 1, it is characterised in that be corrected including step to each discrete pixel light emission unit in the first subregion corresponding to current second subregion according to described full frame correction matrix:

The former penalty coefficient matrix multiple of the discrete pixel light emission unit first subregion in corresponding with current second subregion respectively by described full frame correction matrix obtains the penalty coefficient matrix again of corresponding each discrete pixel light emission unit, wherein, described former penalty coefficient matrix is obtained after display device being completed concordance Subarea calibration；

According to this discrete pixel light emission unit that penalty coefficient matrix is corresponding again of the described matrix correction of penalty coefficient again.

5. the full frame Concordance system of display device, it is characterised in that including:

Region selection module, for, after display device is completed concordance Subarea calibration, selecting the area the second subregion less than the first corresponding subregion in each first subregion that described concordance Subarea calibration is corresponding；

Control module, for controlling the signal source of described display device so that described second subregion carries out single signal amount shows, and utilize filming apparatus to shoot described display device, obtain taking the photograph, described in each described second subregion, the pixel value that device photographs, wherein, described single signal amount includes R signal amount, G-signal amount, B semaphore；

First processing module, for determining the described signal source of corresponding current second subregion and the Parameters Transformation matrix of described filming apparatus according to described pixel value；

Second processing module, determines the first object value of corresponding described current second subregion according to described pixel value and default goal condition, and wherein, described first object value is the target pixel value relative to described filming apparatus；

3rd processing module, for determining the second desired value of corresponding described current second subregion according to described first object value and described Parameters Transformation matrix, wherein, described second desired value is the target pixel value relative to described signal source；

Fourth processing module, for determining the full frame correction matrix of corresponding described current second subregion according to described second desired value；

Correction module, for being corrected each discrete pixel light emission unit in the first subregion corresponding to current second subregion according to described full frame correction matrix；

Wherein, described second processing module includes:

First converting unit, for the color space conversion that is made up of R, G, B by the pixel value of corresponding described current second subregion to the color space being made up of X, Y, Z；

First data processing unit, for determining the 3rd desired value relative to described filming apparatus according to the value after color space conversion and described goal condition, described goal condition is the minima of the value after taking the color space conversion of each second subregion；

Second converting unit, the color space conversion being used for being made up of described 3rd desired value X, Y, Z, to the color space being made up of R, G, B, obtains the first object value of corresponding described current second subregion.

6. the full frame Concordance system of display device according to claim 5, it is characterized in that, described control module is additionally operable to that the parameter of described filming apparatus regulates extremely described filming apparatus and can photograph the full frame of described display device and can not tell the gap between each described discrete pixel light emission unit.

7. the full frame Concordance system of display device according to claim 5, it is characterised in that described fourth processing module includes:

Second data processing unit, for determining the initial full frame correction matrix of corresponding described current second subregion according to described second desired value；

Normalization unit, obtains the full frame correction matrix of corresponding described current second subregion for utilizing the initial full frame correction matrix of each described second subregion that the initial full frame correction matrix of described current second subregion is normalized.

8. the full frame Concordance system of display device according to claim 5, it is characterised in that described correction module includes:

3rd data processing unit, the penalty coefficient matrix again of corresponding each discrete pixel light emission unit is obtained for the former penalty coefficient matrix multiple of the discrete pixel light emission unit in the first subregion that described full frame correction matrix is corresponding with current second subregion respectively, wherein, described former penalty coefficient matrix is obtained after display device being completed concordance Subarea calibration；

Correction unit, for according to this discrete pixel light emission unit that penalty coefficient matrix is corresponding again of the described matrix correction of penalty coefficient again.