CN105022755B - Applied to the bearing calibration of display device, means for correcting and the method for establishing color representation database - Google Patents
Applied to the bearing calibration of display device, means for correcting and the method for establishing color representation database Download PDFInfo
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Abstract
The present invention provides a kind of bearing calibration applied to display device.First, it is combined for N kind original gray-scales, the color representation of the display device is measured respectively, to generate N number of measurement.According to N number of measurement, one group of color mixture formula is used to generate M addition result for the combination of M kind original gray-scales.Then, from N number of measurement and the M addition result, respectively immediate P color representation is showed with P object color component and be searched out.The P object color component performance system corresponds to P kind target gray scales and combines.The P color representation system corresponds to the P kind original gray-scales combination being somebody's turn to do in the original gray-scale combination of (N+M) kind.It is combined using the P kind target gray scales and is combined with the corresponding P kind original gray-scales, the look-up table for correcting the display device is established.
Description
Technical field
The present invention is related to display device, and especially related to the technology of the color representation to correcting display device.
Background technology
In recent years, flourishing with various electronic products, the multimedia systems such as family's theater become increasingly popular.In majority
In multimedia system, most important hardware device just belongs to image display.It is each to manufacture for the color representation of display device
Quotient or label have respective preference, expect thereby to show Brand characteristic or maintain the consistency of product.Due to every a collection of panel
Color representation can be slightly different because of the nuance of procedure for producing, before new a collection of product export, producer usually must survey
Try simultaneously its color displays of adjustment setting.
A kind of way in prior art is that first selecting one by tester has the target for meeting desired color representation
Machine (bench), and the color representation that the target drone corresponds to various input signals is measured, thereby establish a standard database.With
The grey-scale range that target drone provides is for 0~255, if the respective nine kinds of grayscale values of selection three color of red green blue (0,31,63,95,
127,159,191,223,255) carry out permutation and combination, have 729 (=9*9*9) kind grayscale combinations in total.Tester can be sequentially
By this 729 kinds of grayscale combination input target drones, and the CIE XYZ numerical value of the output picture of the target drone is measured respectively, be accordingly the target
The standard database of machine generates 729 color representation reference datas.Then, tester can be sequentially by a variety of red green blue grayscale
Combination one display device to be measured of input, and the CIE XYZ numerical value of the output picture of the display device to be measured is measured respectively, thereby build
The vertical sampled data library for including more sampled datas.Then, tester can select color representation from the sampled data library
With immediate 729 sampled datas of 729 reference datas, to establish three-dimensional mapping (mapping) look-up table.It lifts
For example, it is assumed that the CIE XYZ values for corresponding to red green blue grayscale value (0,0,0) in the standard database are XRYRZR, and this takes
CIE XYZ values and X in sample databaseRYRZRImmediate sampled data is red green blue grayscale value (3,7,0), then sampled data
In red green blue grayscale value (3,7,0) will be set to the red green blue grayscale value (0,0,0) in reference data have reflect
Penetrate relationship.The map lookup table can be stored in the memory inside display device to be measured.The display device to be measured connects in the future
When receiving the input data of red green blue grayscale value (0,0,0), the submitting of its driving circuit will be controlled according to above-mentioned image relationship
Red green blue grayscale value (3,7,0).
It will be appreciated that the sampled data stroke count in sampled data library is the more, more have an opportunity wherein to find color representation certainly
Closer to the sampled data of a certain reference data.For example, if being tested when establishing sampled data library all to be measured aobvious
The red green blue grayscale combination that showing device may be presented just has 16,777,216 (=256*256*256) pens sampling number in total
According to.However, since measurement tasks are quite time-consuming, using current art, to establish that data volume is so huge to be taken
Sample database is nearly impossible.Therefore, actually usually fairly limited for the sampled data quantity of comparison, cause even if
It is the color representation that the display device after adjustment is still difficult to have approximate target drone, or even loses and carry out color adjusting in advance
Meaning.
Invention content
To solve the above problems, the present invention proposes a kind of new color representation Database scheme.According to the present invention
Bearing calibration and means for correcting in, the color representation data of some in the color representation database of display device to be measured are
Produced by color mixture.Compared to the practical color representation for measuring a certain grayscale combination, color mixture formula meter is utilized
It is more time saving to calculate its color representation.Thereby, a large amount of manpowers and time need not be expended, sampled data substantial amounts just can be established
Color representation database, and then promote the effect of colour correction.
A specific embodiment according to the present invention is a kind of bearing calibration applied to display device.First, former for N kinds
Beginning grayscale combines, and the color representation of the display device is measured respectively, to generate N number of measurement.It is tied according to N number of measurement
Fruit, one group of color mixture formula are used to generate M addition result for the combination of M kind original gray-scales.Then, from N number of measurement
As a result with the M addition result, respectively immediate P color representation is showed with P object color component and be searched out.The P
A object color component performance system corresponds to P kind target gray scales and combines.The P color representation system corresponds to should (N+M) kind original gray-scale
P kind original gray-scales combination in combination.It is combined using the P kind target gray scales and is combined with the corresponding P kind original gray-scales, for school
One look-up table of the just display device is established.
Another specific embodiment according to the present invention is a kind of means for correcting applied to display device, wherein including an amount
It surveys module, a color mixing module, a search module and a look-up table and establishes module.The measurement module system is to respectively for N
Kind original gray-scale combination, measures the color representation of the display device, to generate N number of measurement.The color mixture module system uses
According to N number of measurement, M addition result is generated for the combination of M kind original gray-scales using one group of color mixture formula.It should
Search module system is respective to be searched in self-contained N number of measurement and a color representation database of the M addition result
Immediate P color representation is showed with P object color component.The P object color component performance system corresponds to P kind target gray scale groups
It closes.The P color representation system corresponds to the P kind original gray-scales combination being somebody's turn to do in the original gray-scale combination of (N+M) kind.The look-up table is established
Module system establishes a look-up table to be combined with the corresponding P kind original gray-scales using P kind target gray scales combination, for correction
The display device is used.N is the integer more than 1, and M is a positive integer, and P is a positive integer.
It is method that display device establishes a color representation database that another specific embodiment according to the present invention, which is a kind of,.
First, it is combined for N kind grayscale, the color representation of the display device is measured respectively, to generate N number of measurement.According to the N
A measurement, one group of color mixture formula is utilized generates M addition result to be directed to the combination of M kind grayscale.It then, including should
N number of measurement and the color representation database of the M addition result are established.
It can be further understood by following detailed description of the invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Description of the drawings
Fig. 1 is the flow chart according to the bearing calibration in one embodiment of the invention.
Fig. 2 is the functional block diagram according to the means for correcting in one embodiment of the invention.
Specific implementation mode
A specific embodiment according to the present invention is a kind of bearing calibration applied to display device, and flowchart is painted
In Fig. 1.It should be noted that a so-called diction of the invention is to censure the concept of the invention that such embodiment is presented, but its herein
Cover scope and is not limited by such embodiment itself.In addition, Mathematical representation system in this exposure book is illustrating and this hair
The relevant principle of bright embodiment and logic the case where unless there are specializing, are not otherwise construed as limiting scope of the invention.
Persond having ordinary knowledge in the technical field of the present invention there are many technology it is understood that can realize the object corresponding to such mathematical expression
Manage the form of expression.
First, step S11 is to be combined for N kind original gray-scales, measures the color representation of tested display device respectively, with production
Raw N number of measurement.N is the integer more than 1.In an embodiment, in the highest grayscale value that display device to be measured can be presented
In the case of 255, N is set equal to 766, and 766 kinds of original gray-scale combinations include：(0,0,1), (0,0,2) ...,
(0,0,255), (0,1,0), (0,2,0) ..., (0,255,0), (1,0,0), (2,0,0) ..., (255,0,0) and (0,0,
0).Except comprising the grayscale combination (0,0,0) corresponding to black, 766 kinds of original gray-scales combination also correspond to brightness by
Down to 255 kinds of high red, 255 kinds of greens and 255 kinds of blues.In that case, step S11 will generate 766 kinds of measurements
As a result, 766 kinds of monochromatic colors performance of display device namely to be measured.In practice, such measurement is not limited to particular form,
And also there is the possibility converted mutually between various color representation forms.For example, which can be CIE XYZ values
Or CIE Lab values.
Then, step S12 is the N number of measurement generated according to step S11, former for M kinds using color mixture formula
The combination of beginning grayscale generates M addition result.M is a positive integer.In other words, according to step S12 N number of measurement into one
Step blends the color representation of other original gray-scales combination.In one embodiment, it is assumed that one in M kind original gray-scales combination is original
Grayscale is combined as (RO, GO, BO), the color scheme of redgreenblue is corresponded to, and its addition result is indicated with (X ', Y ', Z ').
In an embodiment, this group of color mixture formula can be：
X '=X (RO, 0,0) and+X (0, GO, 0) and+X (0,0, BO),
Y '=Y (RO, 0,0) and+Y (0, GO, 0) and+Y (0,0, BO),
Z '=Z (RO, 0,0) and+Z (0, GO, 0) and+Z (0,0, BO),
Wherein X (RO, 0,0), Y (RO, 0,0), Z (RO, 0,0) and represent original gray-scale combination (RO, 0,0) and in CIEXYZ colors
Color representation in space, X (0, GO, 0), Y (0, GO, 0), Z (0, GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE
Color representation in XYZ color spaces, X (0,0, BO), Y (0,0, BO), Z (0,0, BO) represent original gray-scale combination (0,0, BO)
Color representation in CIE XYZ color spaces.It is worth noting that, no matter grayscale combines (RO, GO, BO) in three grayscale
Why is value, and all color representations in above-mentioned color mixture formula as operating basis have all been contained in caused by step S11
In 766 kinds of measurements.For example, if the grayscale combination (R co-pending for determining color representationO, GO, BO) it is (125,79,200), on
State color mixture formula calculate according to this (X ', Y ', Z ') be three kinds of grayscale combination (125,0,0), (0,79,0), (0,0,
200) color representation.
If the aiming at of tester enable sampled data library cover red green that all display devices to be measured may be presented/
The color representation of bluish grey rank combination, that is, it is taking for 16,777,216 (=256*256*256) to establish sampled data total quantity
Sample database, then the numerical value M in step S12 can be set to 16,777,216-N (such as 16,777,216-766=16,776,
450).It in other words, can be in step S12 by meter other than the N kind color representations generated through measurement in step S11
The all possible color representation of display device to be measured is found out in calculation.It should be noted that M can be other any positive integers, and can be by surveying
Examination personnel determine according to actual needs.Compared to the practical color representation for measuring a certain grayscale combination, color mixture public affairs are utilized
It is more time saving that formula calculates its color representation.The experiment proved that although calculating the mixing knot of gained according to above-mentioned color mixture formula
Fruit (X ', Y ', Z ') actually corresponds to grayscale with display device to be measured and combines (RO, GO, BO) color representation may it is slightly different,
But the two is fairly close.
In another embodiment, the numerical value of N in step S11 is set equal to 1,021, and this 1,020 kind of original gray-scale
Combination includes：(0,0,1), (0,0,2) ..., (0,0,255), (0,1,0), (0,2,0) ..., (0,255,0), (1,0,0),
(2,0,0) ..., (255,0,0), (0,0,0), (1,1,1) ..., (255,255,255).In addition to correspond to brightness by down to
High 255 kinds of red, 255 kinds of greens and 255 kinds of blues, this 1, the combination of 021 kind of original gray-scale also corresponds to 256 kinds of brightness differences
Grey (most depth be black, most it is shallow for white).In that case, this group of color mixture formula used by step S12 can
For：
X '=XR+XG+XB,
Y '=YR+YG+YB,
Z '=ZR+ZG+ZB,
Wherein X (RO, 0,0), Y (RO, 0,0), Z (RO, 0,0) and represent original gray-scale combination (RO, 0,0) and in CIEXYZ colors
Color representation in space, X (0, GO, 0), Y (0, GO, 0), Z (0, GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE
Color representation in XYZ color spaces, X (0,0, BO), Y (0,0, BO), Z (0,0, BO) represent original gray-scale combination (0,0, BO)
Color representation in CIE XYZ color spaces, X (RO, RO, RO)、Y(RO, RO, RO)、Z(RO, RO, RO) represent original gray-scale group
Close (RO, RO, RO) color representation in CIE XYZ color spaces, X (GO, GO, GO)、Y(GO, GO, GO)、Z(GO, GO, GO) represent
Original gray-scale combines (GO, GO, GO) color representation in CIE XYZ color spaces, X (BO, BO, BO)、Y(BO, BO, BO)、Z
(BO, BO, BO) represent original gray-scale combination (BO, BO, BO) color representation in CIE XYZ color spaces, X (0, RO, 0), Y
(0, RO, 0), Z (0, RO, 0) and represent original gray-scale combination (0, RO, 0) and color representation in CIE XYZ color spaces, X (0,0,
RO), Y (0,0, RO), Z (0,0, RO), represent original gray-scale combination (0,0, RO) color representation in CIE XYZ color spaces,
X(GO, 0,0), Y (GO, 0,0), Z (GO, 0,0), represent original gray-scale combination (GO, 0,0) and color in CIE XYZ color spaces
Coloured silk performance, X (0,0, GO), Y (0,0, GO), Z (0,0, GO), represent original gray-scale combination (0,0, GO) in CIE XYZ color spaces
In color representation, X (BO, 0,0), Y (BO, 0,0), Z (BO, 0,0), represent original gray-scale combination (BO, 0,0) and in CIE XYZ colors
Color representation in color space, X (0, BO, 0), Y (0, BO, 0), Z (0, BO, 0), represent original gray-scale combination (0, BO, 0) and in CIE
Color representation in XYZ color spaces.
The main difference of aforementioned two groups of color mixture formula is that the addition result that second group of color mixture formula obtains is more
It is showed to approach actual color, but operation program is complex.Similarly, no matter grayscale combines (RO, GO, BO) in three ashes
Why is rank value, and being all contained in step S11 as all color representations of operating basis in second group of color mixture formula is produced
In 1,021 kinds of raw measurements.For example, if the grayscale combination (R co-pending for determining color representationO, GO, BO) be (125,79,
200), above-mentioned color mixture formula calculate according to this (X ', Y ', Z ') be the combination of following 12 kinds of grayscale color representation：(125,
0,0), (0,125,0), (0,0,125), (125,125,125), (79,0,0), (0,79,0), (0,0,79), (79,79,79),
(200,0,0), (0,200,0), (0,0,200), (200,200,200).Correspondingly, when numerical value of N is equal to 1,021, numerical value M can
It is designed to 16,776,195 (=16,777,216-1,021).
As soon as step S13 is to establish the color representation database for including N number of measurement and the M addition result,
It is to sort out display device to be measured to combine (N+M) kind color representation corresponding to (N+M) kind grayscale.
Then, step S14 be searched from the color representation database that step S13 is established respectively with P object color component table
Existing immediate P color representation.P is a positive integer.In other words, step S14 is to plant color from (N+M) of display device to be measured
It is found out in performance and shows immediate P color representation with P object color component.The P object color component performance corresponds to P kind targets
Grayscale combines, and the color representation for it is expected to reach after display device to be measured is corrected for tester.In practice, the P target
Color representation is just Given information before executing step S14.For example, P is equally likely to 729, and 729 object color component tables
It is now the CIE XYZ values for measuring a target drone and corresponding to 729 kinds of grayscale combination gained.
It in practical application, is showed for some object color component, being compared one by one using circulating operation program should (N+
M) the difference of kind color representation and object color component performance, and find out difference reckling.As having in the technical field of the invention
It known to usually intellectual, determines that the mode of the difference of two color representations has very much, such as CIE is assessed according to following equation
The first color representation (X in XYZ color spaces1, Y1, Z1) and the second color representation (X2, Y2, Z2) discrepancy delta E：
Or the first color representation (L in CIE Lab color spaces is assessed according to following equation1, a1, b1) and the second color
Coloured silk performance (L2, a2, b2) discrepancy delta E：
As described above, the sampled data quantity in color representation database according to the present invention is related to the size of N and M,
But it is not limited with special value.In practical application, comparatively ideal design is eight times or more enables that (N+M) is P, helps to reduce
The overall average for the difference that P color representation being searched out from color representation database is respectively showed with P object color component,
And then promote the effect that the color representation of target drone is copied to display device to be measured.
Obviously, which corresponds to the P kind original gray-scales combination being somebody's turn to do in the original gray-scale combination of (N+M) kind.With
Afterwards, step S15 is to combine to establish a look-up table with the corresponding P kind original gray-scales using P kind target gray scales combination, for school
Display device just to be measured is used.The look-up table can be considered as storing P kind image relationships.It should be noted that step S11~S15
Run time would generally be display device manufacture before, and the look-up table that step S15 is established mainly go out for display device
Correction program after factory uses.For example, it is being watched in the general operating mode of image for user, in input signal
A certain grayscale combination, the display device can be inputted grayscale with this and be combined as indexing, and be found out from above-mentioned look-up table and input ash
Rank combines a kind of identical or immediate target gray scale combination, and controls its driving circuit and send out and correspond to target gray scale combination
Original gray-scale combination.
In practice, combined between the combination of plurality of target grayscale when inputting grayscale, that is, simultaneously close to plurality of target
When grayscale combines, display device can also find out a variety of original gray-scales combination combined corresponding to the plurality of target grayscale simultaneously, and
A kind of new grayscale combination is generated according to a variety of original gray-scale combination interpolations.The interpositioning is the technical field of the invention
Known to middle tool usually intellectual, therefore repeat no more.
A specific embodiment according to the present invention is a kind of means for correcting applied to display device, functional block diagram system
It is illustrated in Fig. 2.Means for correcting 200 includes a measurement module 22, a color mixing module 24, a search module 26 and a look-up table
Establish module 28.22 system of measurement module combines to be directed to N kind original gray-scales respectively, the color representation of measurement display device 300,
To generate N number of measurement.24 system of color mixture module is according to N number of measurement, utilizing one group of color mixture formula
It is combined for M kind original gray-scales and generates M addition result.26 system of search module is to self-contained N number of measurement and the M
It is searched in one color representation database of addition result and respectively shows immediate P color representation with P object color component.The P
A object color component performance system corresponds to P kind target gray scales and combines.The P color representation system corresponds to should (N+M) kind original gray-scale
P kind original gray-scales combination in combination.Look-up table establish 28 system of module to using the P kind target gray scales combination with it is corresponding
A look-up table 32 is established in P kind original gray-scales combination, is used for correcting display device 300.N is the integer more than 1, M mono-
Positive integer, P are a positive integer.
In practice, look-up table 32 can be stored in the built-in memory of display device 300.Previously introducing Fig. 1 presentations
Correcting process when the various operation changes (such as using different color mixture formula) that describe can also be applied to means for correcting
200, details also repeats no more.
It is method that display device establishes a color representation database that another specific embodiment according to the present invention, which is a kind of,.
First, it is combined for N kind grayscale, the color representation of the display device is measured respectively, to generate N number of measurement.According to the N
A measurement, one group of color mixture formula is utilized generates M addition result to be directed to the combination of M kind grayscale.It then, including should
N number of measurement and the color representation database of the M addition result are established.In other words, color table according to the present invention
Existing database can be applied to the case where except foundation correction look-up table.
As described above, the present invention proposes a kind of new color representation Database scheme.In correction according to the present invention
In method and means for correcting, the color representation data of some in the color representation database of display device to be measured are to penetrate color
Produced by coloured silk mixing.Relative to the practical color representation for measuring a certain grayscale combination, its color is calculated using color mixture formula
Coloured silk performance is more time saving.Thereby, a large amount of manpowers and time need not be expended, the color table of sampled data substantial amounts just can be established
Existing database (or even all color representations that display device may be presented can be covered), and then promote the effect of colour correction.
It is the feature and spirit for wishing to more clearly describe the present invention by the above detailed description of preferred embodiments,
And not scope of the invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, the purpose is to uncommon
Various changes can be covered and have being arranged in the scope of the scope of the claims to be applied of the invention of equality by hoping.
Claims (19)
1. a kind of bearing calibration applied to display device, including：
(a) N kind original gray-scales are directed to combine, measure the color representation of the display device respectively, to generate N number of measurement, N is
Positive integer more than 1；
(b) according to N number of measurement, M addition knot is generated for the combination of M kind original gray-scales using one group of color mixture formula
Fruit, M are positive integer；
(c) color representation database is established according to N number of measurement and the M addition result, makes wherein to include (N+M) color
Coloured silk performance；
(d) it is searched from the color representation database and the respective immediate P color table of P object color component of acquiescence performance
Existing, wherein P is positive integer, which corresponds to P kind target gray scales and combine, and the P color being searched out
Performance corresponds to the P kind original gray-scales combination being somebody's turn to do in the original gray-scale combination of (N+M) kind；And
(e) it is combined with the corresponding P kind original gray-scales using P kind target gray scales combination and establishes look-up table, so that correction should
Display device；
Wherein, the original gray-scale in M kind original gray-scales combination is combined as (RO,GO,BO), addition result be (X ', Y ',
Z '), this group of color mixture formula includes：
X '=X (RO,0,0)+X(0,GO,0)+X(0,0,BO),
Y '=Y (RO,0,0)+Y(0,GO,0)+Y(0,0,BO),
Z '=Z (RO,0,0)+Z(0,GO,0)+Z(0,0,BO),
Wherein X (RO,0,0)、Y(RO,0,0)、Z(RO, 0,0) and represent original gray-scale combination (RO, 0,0) and in CIE XYZ color spaces
In color representation, X (0, GO,0)、Y(0,GO,0)、Z(0,GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE XYZ colors
Color representation in color space, X (0,0, BO)、Y(0,0,BO)、Z(0,0,BO) represent original gray-scale combination (0,0, BO) in CIE
Color representation in XYZ color spaces.
2. bearing calibration as described in claim 1, which is characterized in that the highest grayscale value that the display device can be presented is GMAX,
The N kind original gray-scales combine：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,GMAX,
0)、(1,0,0)、(2,0,0)、…、(GMAX, 0,0) and (0,0,0).
3. bearing calibration as described in claim 1, which is characterized in that the highest grayscale value that the display device can be presented is GMAX,
The N kind original gray-scales combine：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,GMAX,
0)、(1,0,0)、(2,0,0)、…、(GMAX,0,0)、(0,0,0)、(1,1,1)、…、(GMAX,GMAX,GMAX)。
4. bearing calibration as claimed in claim 3, which is characterized in that the original gray-scale group in M kind original gray-scales combination
It is combined into (RO,GO,BO), addition result is (X ', Y ', Z '), and addition result X ' is according to X (RO,0,0)、X(0,RO,0)、X(0,0,
RO)、X(RO,RO,RO)、X(0,GO,0)、X(GO,0,0)、X(0,0,GO)、X(GO,GO,GO)、X(0,0,BO)、X(BO,0,0)、X
(0,BO,0)、X(BO,BO,BO) generate, addition result Y ' is according to Y (RO,0,0)、Y(0,RO,0)、Y(0,0,RO)、Y(RO,RO,
RO)、Y(0,GO,0)、Y(GO,0,0)、Y(0,0,GO)、Y(GO,GO,GO)、Y(0,0,BO)、Y(BO,0,0)、Y(0,BO,0)、Y(BO,
BO,BO) generate, addition result Z ' is according to Z (RO,0,0)、Z(0,RO,0)、Z(0,0,RO)、Z(RO,RO,RO)、Z(0,GO,0)、Z
(GO,0,0)、Z(0,0,GO)、Z(GO,GO,GO)、Z(0,0,BO)、Z(BO,0,0)、Z(0,BO,0)、Z(BO,BO,BO) generate, wherein
X(RO,0,0)、Y(RO,0,0)、Z(RO, 0,0) and represent original gray-scale combination (RO, 0,0) and color in CIE XYZ color spaces
Performance, X (0, GO,0)、Y(0,GO,0)、Z(0,GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE XYZ color space
Color representation, X (0,0, BO)、Y(0,0,BO)、Z(0,0,BO) represent original gray-scale combination (0,0, BO) empty in CIE XYZ colors
Between in color representation, X (RO,RO,RO)、Y(RO,RO,RO)、Z(RO,RO,RO) represent original gray-scale combination (RO,RO,RO) in CIE
Color representation in XYZ color spaces, X (GO,GO,GO)、Y(GO,GO,GO)、Z(GO,GO,GO) represent original gray-scale combination (GO,
GO,GO) color representation in CIE XYZ color spaces, X (BO,BO,BO)、Y(BO,BO,BO)、Z(BO,BO,BO) represent original ash
Rank combines (BO,BO,BO) color representation in CIE XYZ color spaces, X (0, RO,0)、Y(0,RO,0)、Z(0,RO, 0) and it represents
Original gray-scale combination (0, RO, 0) and color representation in CIE XYZ color spaces, X (0,0, RO)、Y(0,0,RO)、Z(0,0,
RO), represent original gray-scale combination (0,0, RO) color representation in CIE XYZ color spaces, X (GO,0,0)、Y(GO,0,0)、
Z(GO, 0,0), represent original gray-scale combination (GO, 0,0) and color representation in CIE XYZ color spaces, X (0,0, GO)、Y(0,
0,GO)、Z(0,0,GO), represent original gray-scale combination (0,0, GO) color representation in CIE XYZ color spaces, X (BO,0,
0)、Y(BO,0,0)、Z(BO, 0,0), represent original gray-scale combination (BO, 0,0) and color representation in CIE XYZ color spaces, X
(0,BO,0)、Y(0,BO,0)、Z(0,BO, 0), represent original gray-scale combination (0, BO, 0) and color in CIE XYZ color spaces
Performance.
5. bearing calibration as claimed in claim 4, which is characterized in that this group of color mixture formula include：
X '=XR+XG+XB,
Y '=YR+YG+YB,
Z '=ZR+ZG+ZB,
And
6. bearing calibration as described in claim 1, which is characterized in that step (d) includes to assess CIE according to following equation
The first color representation (X in XYZ color spaces1,Y1,Z1) and the second color representation (X2,Y2,Z2) discrepancy delta E：
7. bearing calibration as described in claim 1, which is characterized in that step (d) includes to assess CIE according to following equation
The first color representation (L in Lab color spaces1,a1,b1) and the second color representation (L2,a2,b2) discrepancy delta E：
8. a kind of means for correcting applied to display device, including：
Measurement module combines to be directed to N kind original gray-scales respectively, the color representation of the display device is measured, to generate N number of amount
It surveys as a result, N is the positive integer more than 1；
Color mixture module, according to N number of measurement, M kind original gray-scale groups are directed to using one group of color mixture formula
It closes and generates M addition as a result, M is positive integer；
Search module, to search and write from memory in self-contained N number of measurement and the color representation database of the M addition result
The respective immediate P color representation of P object color component performance recognized, P is positive integer, which corresponds to P
Kind target gray scale combination, the P color representation correspond to the P kind original gray-scales combination being somebody's turn to do during (N+M) kind original gray-scale combines；With
And
Look-up table establishes module, is looked into combine to combine to establish with the corresponding P kind original gray-scales using the P kind target gray scales
Table is looked for, is used for correcting the display device；
Wherein, the original gray-scale in M kind original gray-scales combination is combined as (RO,GO,BO), addition result be (X ', Y ',
Z '), this group of color mixture formula includes：
X '=X (RO,0,0)+X(0,GO,0)+X(0,0,BO),
Y '=Y (RO,0,0)+Y(0,GO,0)+Y(0,0,BO),
Z '=Z (RO,0,0)+Z(0,GO,0)+Z(0,0,BO),
Wherein X (RO,0,0)、Y(RO,0,0)、Z(RO, 0,0) and represent original gray-scale combination (RO, 0,0) and in CIE XYZ color spaces
In color representation, X (0, GO,0)、Y(0,GO,0)、Z(0,GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE XYZ colors
Color representation in color space, X (0,0, BO)、Y(0,0,BO)、Z(0,0,BO) represent original gray-scale combination (0,0, BO) in CIE
Color representation in XYZ color spaces.
9. means for correcting as claimed in claim 8, which is characterized in that the highest grayscale value that the display device can be presented is GMAX,
The N kind original gray-scales combine：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,GMAX,
0)、(1,0,0)、(2,0,0)、…、(GMAX, 0,0) and (0,0,0).
10. means for correcting as claimed in claim 8, which is characterized in that the highest grayscale value that the display device can be presented is
GMAX, which, which combines, includes：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,
GMAX,0)、(1,0,0)、(2,0,0)、…、(GMAX,0,0)、(0,0,0)、(1,1,1)、…、(GMAX,GMAX,GMAX)。
11. means for correcting as claimed in claim 10, which is characterized in that the original gray-scale in M kind original gray-scales combination
It is combined as (RO,GO,BO), addition result is (X ', Y ', Z '), and addition result X ' is according to X (RO,0,0)、X(0,RO,0)、X(0,
0,RO)、X(RO,RO,RO)、X(0,GO,0)、X(GO,0,0)、X(0,0,GO)、X(GO,GO,GO)、X(0,0,BO)、X(BO,0,0)、X
(0,BO,0)、X(BO,BO,BO) generate, addition result Y ' is according to Y (RO,0,0)、Y(0,RO,0)、Y(0,0,RO)、Y(RO,RO,
RO)、Y(0,GO,0)、Y(GO,0,0)、Y(0,0,GO)、Y(GO,GO,GO)、Y(0,0,BO)、Y(BO,0,0)、Y(0,BO,0)、Y(BO,
BO,BO) generate, addition result Z ' is according to Z (RO,0,0)、Z(0,RO,0)、Z(0,0,RO)、Z(RO,RO,RO)、Z(0,GO,0)、Z
(GO,0,0)、Z(0,0,GO)、Z(GO,GO,GO)、Z(0,0,BO)、Z(BO,0,0)、Z(0,BO,0)、Z(BO,BO,BO) generate, wherein
X(RO,0,0)、Y(RO,0,0)、Z(RO, 0,0) and represent original gray-scale combination (RO, 0,0) and color in CIE XYZ color spaces
Performance, X (0, GO,0)、Y(0,GO,0)、Z(0,GO, 0) and represent original gray-scale combination (0, GO, 0) and in CIE XYZ color space
Color representation, X (0,0, BO)、Y(0,0,BO)、Z(0,0,BO) represent original gray-scale combination (0,0, BO) empty in CIE XYZ colors
Between in color representation, X (RO,RO,RO)、Y(RO,RO,RO)、Z(RO,RO,RO) represent original gray-scale combination (RO,RO,RO) in CIE
Color representation in XYZ color spaces, X (GO,GO,GO)、Y(GO,GO,GO)、Z(GO,GO,GO) represent original gray-scale combination (GO,
GO,GO) color representation in CIE XYZ color spaces, X (BO,BO,BO)、Y(BO,BO,BO)、Z(BO,BO,BO) represent original ash
Rank combines (BO,BO,BO) color representation in CIE XYZ color spaces, X (0, RO,0)、Y(0,RO,0)、Z(0,RO, 0) and it represents
Original gray-scale combination (0, RO, 0) and color representation in CIE XYZ color spaces, X (0,0, RO)、Y(0,0,RO)、Z(0,0,
RO), represent original gray-scale combination (0,0, RO) color representation in CIE XYZ color spaces, X (GO,0,0)、Y(GO,0,0)、
Z(GO, 0,0), represent original gray-scale combination (GO, 0,0) and color representation in CIE XYZ color spaces, X (0,0, GO)、Y(0,
0,GO)、Z(0,0,GO), represent original gray-scale combination (0,0, GO) color representation in CIE XYZ color spaces, X (BO,0,
0)、Y(BO,0,0)、Z(BO, 0,0), represent original gray-scale combination (BO, 0,0) and color representation in CIE XYZ color spaces, X
(0,BO,0)、Y(0,BO,0)、Z(0,BO, 0), represent original gray-scale combination (0, BO, 0) and color in CIE XYZ color spaces
Performance.
12. means for correcting as claimed in claim 11, which is characterized in that this group of color mixture formula include：
X '=XR+XG+XB,
Y '=YR+YG+YB,
Z '=ZR+ZG+ZB,
And
13. means for correcting as claimed in claim 8, which is characterized in that the search module assesses CIE according to following equation
The first color representation (X in XYZ color spaces1,Y1,Z1) and the second color representation (X2,Y2,Z2) discrepancy delta E：
14. means for correcting as claimed in claim 8, which is characterized in that the search module assesses CIE according to following equation
The first color representation (L in Lab color spaces1,a1,b1) and the second color representation (L2,a2,b2) discrepancy delta E：
15. a kind of method for establishing color representation database for display device, including：
(a) be directed to N kind grayscale to combine, measure the color representation of the display device respectively, to generate N number of measurement, N be more than
1 positive integer；
(b) according to N number of measurement, M addition is generated as a result, M for the combination of M kind grayscale using one group of color mixture formula
For positive integer；And
(c) the color representation database is established according to N number of measurement and the M addition result, makes wherein to include that (N+M) is planted
Color representation；
Wherein, the grayscale in M kind grayscale combination is combined as (RO,GO,BO), addition result is (X ', Y ', Z '), this group of color
Color mixed formulation includes：
X '=X (RO,0,0)+X(0,GO,0)+X(0,0,BO),
Y '=Y (RO,0,0)+Y(0,GO,0)+Y(0,0,BO),
Z '=Z (RO,0,0)+Z(0,GO,0)+Z(0,0,BO),
Wherein X (RO,0,0)、Y(RO,0,0)、Z(RO, 0,0) and represent grayscale combination (RO, 0,0) and in CIE XYZ color spaces
Color representation, X (0, GO,0)、Y(0,GO,0)、Z(0,GO, 0) and represent grayscale combination (0, GO, 0) and in CIE XYZ color spaces
Color representation, X (0,0, BO)、Y(0,0,BO)、Z(0,0,BO) represent grayscale combination (0,0, BO) in CIE XYZ color spaces
In color representation.
16. method as claimed in claim 15, which is characterized in that the highest grayscale value that the display device can be presented is GMAX, should
N kind grayscale combines：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,GMAX,0)、(1,
0,0)、(2,0,0)、…、(GMAX, 0,0) and (0,0,0).
17. method as claimed in claim 15, which is characterized in that the highest grayscale value that the display device can be presented is GMAX, should
N kind original gray-scales combine：(0,0,1)、(0,0,2)、…、(0,0,GMAX)、(0,1,0)、(0,2,0)、…、(0,GMAX,
0)、(1,0,0)、(2,0,0)、…、(GMAX,0,0)、(0,0,0)、(1,1,1)、…、(GMAX,GMAX,GMAX)。
18. method as claimed in claim 17, which is characterized in that the grayscale in M kind grayscale combination is combined as (RO,GO,
BO), addition result is (X ', Y ', Z '), and addition result X ' is according to X (RO,0,0)、X(0,RO,0)、X(0,0,RO)、X(RO,RO,
RO)、X(0,GO,0)、X(GO,0,0)、X(0,0,GO)、X(GO,GO,GO)、X(0,0,BO)、X(BO,0,0)、X(0,BO,0)、X(BO,
BO,BO) generate, addition result Y ' is according to Y (RO,0,0)、Y(0,RO,0)、Y(0,0,RO)、Y(RO,RO,RO)、Y(0,GO,0)、Y
(GO,0,0)、Y(0,0,GO)、Y(GO,GO,GO)、Y(0,0,BO)、Y(BO,0,0)、Y(0,BO,0)、Y(BO,BO,BO) generate, addition
As a result Z ' is according to Z (RO,0,0)、Z(0,RO,0)、Z(0,0,RO)、Z(RO,RO,RO)、Z(0,GO,0)、Z(GO,0,0)、Z(0,0,
GO)、Z(GO,GO,GO)、Z(0,0,BO)、Z(BO,0,0)、Z(0,BO,0)、Z(BO,BO,BO) generate, wherein X (RO,0,0)、Y(RO,
0,0)、Z(RO, 0,0) and represent grayscale combination (RO, 0,0) and color representation in CIE XYZ color spaces, X (0, GO,0)、Y(0,
GO,0)、Z(0,GO, 0) and represent grayscale combination (0, GO, 0) and color representation in CIE XYZ color spaces, X (0,0, BO)、Y
(0,0,BO)、Z(0,0,BO) represent grayscale combination (0,0, BO) color representation in CIE XYZ color spaces, X (RO,RO,
RO)、Y(RO,RO,RO)、Z(RO,RO,RO) represent grayscale combination (RO,RO,RO) color representation in CIE XYZ color spaces, X
(GO,GO,GO)、Y(GO,GO,GO)、Z(GO,GO,GO) represent grayscale combination (GO,GO,GO) color in CIE XYZ color spaces
Performance, X (BO,BO,BO)、Y(BO,BO,BO)、Z(BO,BO,BO) represent grayscale combination (BO,BO,BO) in CIE XYZ color spaces
Color representation, X (0, RO,0)、Y(0,RO,0)、Z(0,RO, 0) and represent grayscale combination (0, RO, 0) and in CIE XYZ color spaces
In color representation, X (0,0, RO)、Y(0,0,RO)、Z(0,0,RO), represent grayscale combination (0,0, RO) empty in CIE XYZ colors
Between in color representation, X (GO,0,0)、Y(GO,0,0)、Z(GO, 0,0), represent grayscale combination (GO, 0,0) and in CIE XYZ colors
Color representation in space, X (0,0, GO)、Y(0,0,GO)、Z(0,0,GO), represent grayscale combination (0,0, GO) in CIE XYZ colors
Color representation in color space, X (BO,0,0)、Y(BO,0,0)、Z(BO, 0,0), represent grayscale combination (BO, 0,0) and in CIE XYZ
Color representation in color space, X (0, BO,0)、Y(0,BO,0)、Z(0,BO, 0), represent grayscale combination (0, BO, 0) and in CIE
Color representation in XYZ color spaces.
19. method as claimed in claim 18, which is characterized in that this group of color mixture formula include：
X '=XR+XG+XB,
Y '=YR+YG+YB,
Z '=ZR+ZG+ZB,
And
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