CN104424899B - Liquid crystal display and its image color graded compensation method - Google Patents
Liquid crystal display and its image color graded compensation method Download PDFInfo
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Abstract
A kind of liquid crystal display, including：One data source, the pixel data to produce N, N is positive integer；One digital gamma corrects unit, is coupled to the data source, and to carry out digital gamma correction to the pixel data to produce a digital gamma correcting pixel data of (N+M) position, M is positive integer；One image color graded unit, is coupled to digital gamma correction unit, by the digital gamma correcting pixel data carry out it is image color graded compensate into the one of (N+M K) position and pass colorimetric compensation pixel data, K is positive integer；And a converting unit, the image color graded unit is coupled to, this is passed into colorimetric compensation pixel data is converted into an output image, wherein, the digit of the D/A conversion unit corrects the digit of unit less than the digital gamma.
Description
Technical field
The invention relates to a kind of liquid crystal display and its image color graded compensation method.
Background technology
In traditional image color graded (image-dithering) compensation method, it is the method using similar colour mixture, utilizes
Compared with lower-order digit grey decision-making spatial domain (spatial domain) and/or time-domain (temporal domain) do change and
The grey decision-making of high bit number is obtained, and is difficult to be detected by human eye, height can be shown to reach reception lower-order digit input image data
Digit output image.
Figure 1A and Figure 1B are refer to, it illustrates the schematic diagram that traditional images pass colorimetric compensation method.Figure 1A is shown in time-domain
Traditional images are carried out on (temporal domain) and pass colorimetric compensation, and Figure 1B is shown in spatial domain (spatial domain)
Carry out traditional images and pass colorimetric compensation.
As shown in Figure 1A, pel array 102 includes 2X2 pixels.It is when carrying out image color graded compensation, such as, continuous at 5
Picture (frame), pel array 102 has 0 respectively, 1,2,3 and 4 completely black pixels, then in the time domain, is imitated with the vision of human eye
From the point of view of fruit, such as color of herewith pel array fades to black 118 in this 5 continuous pictures, by white 110 and (but passes through 3 gradually
The grey 112~116 of the different depths is planted, wherein, the color of grey 116 is most deep, and the color of grey 112 is most shallow).
Figure 1B is directed in same picture, and several adjacent pixels bring the visual effect of user.Herein with 4 phases
Explained exemplified by adjacent pixel 122A~122D.If pixel 122A~122D is white (that is, Figure 1B the 1st row),
Then the visual effect of human eye will be considered that white 130 is presented in this 4 pixel 122A~122D integral color.Remaining can class according to this
Push away.By Figure 1B image color graded compensation, it may be such that 4 adjacent pixels for being only able to display two kinds of colors of black/white originally can be presented 5
Plant color (white 130, grey 132~136 and black 138).
To be effectively improved picture image, so-called digital gamma correction (digital Gamma existing at present
Correction), the pole of the R/G/B grey decision-makings of its energy each pixel/sub-pixel of independent control and each pixel/sub-pixel of independent control
Property.
So, the present invention proposes a kind of liquid crystal display for supporting digital gamma to correct and its image color graded compensation side
Method.
The content of the invention
According to one embodiment of the invention, a kind of liquid crystal display is proposed, including：One data source, to produce N
One pixel data, N is positive integer；One digital gamma corrects unit, is coupled to the data source, to be carried out to the pixel data
Digital gamma correction is to produce a digital gamma correcting pixel data of (N+M) position, and M is positive integer；One image color graded unit, coupling
Digital gamma correction unit is connected to, the digital gamma correcting pixel data is subjected to image color graded (N+M-K) position of compensating into
One passs colorimetric compensation pixel data, and K is positive integer；And a converting unit, the image color graded unit is coupled to, this is passed into colorimetric compensation
Pixel data is converted into an output image, wherein, the digit of the converting unit corrects the digit of unit less than the digital gamma.
Another embodiment of the present invention discloses a kind of image color graded compensation method, it is adaptable to a liquid crystal display, this method
Including：One pixel datas of N are carried out with digital gamma correction to produce a digital gamma correcting pixel data of (N+M) position, N
It is positive integer with M；The digital gamma correcting pixel data is carried out image color graded to compensate into the one of (N+M-K) position and pass colorimetric compensation picture
Prime number evidence, K is positive integer；And this is passed into the output image that colorimetric compensation pixel data is converted into (N+M-K) position.
Have in terms of for the above and other to the present invention and more preferably understand, special embodiment below, and coordinate institute's accompanying drawing
Formula, is described in detail below.
Brief description of the drawings
Figure 1A and Figure 1B illustrates the schematic diagram that traditional images pass colorimetric compensation method.
Fig. 2 illustrates the circuit diagram of liquid crystal display.
Fig. 3 shows the implementation schematic diagram of image color graded compensation according to embodiments of the present invention.
Fig. 4 shows that the original 8X8 sub-pixels that can be applied in the embodiment of the present invention pass one of colorimetric compensation table.
Fig. 5~Fig. 7 shows image color graded compensation table and its generation type in embodiments of the present invention.
Fig. 8~Fig. 9 shows image color graded compensation table and its generation type in an alternative embodiment of the invention.
[label declaration]
102：Pel array 110~118,130~138：Color
122nd, 122A~122D：Pixel/sub-pixel 200：Liquid crystal display
210：Pel array 220：Driver element
222：Scanner driver 224：Data driver
300：Data source 310：Digital gamma corrects unit
320：Image color graded unit 330：D/A conversion unit
410th, 510P, 510N, 520P, 520N, 610P, 610N, 620P, 620N, 710~740：Table
530A~560D, 610A~610D, 710A, 710B：Pixel to be compensated
Embodiment
The technical terms of this specification is the idiom with reference to the art, and such as this specification has to part term to be added
To illustrate or define, the explanation of the part term is defined by the explanation of this specification or definition.For the skill that the field is common
Art or principle, if not being related to the technical characteristic of the present invention, by it will not go into details.The shape of element, size, ratio and stream in icon
The step of journey order to wait be only to illustrate, be to supply skilled in the art realises that the present invention is used, the non-practical range to the present invention
It is any limitation as.
On the premise of it may implement, optionally implement all or part of technical characteristic in any embodiment, or
All or part of technical characteristic in multiple embodiments is combined by person.
Fig. 2 is refer to, it illustrates the circuit diagram of liquid crystal display.Liquid crystal display 200 include pel array 210,
Multi-strip scanning line S1~Sn, a plurality of data lines D1~Dm and driver element 220.Pel array 210 includes multiple pixels.These
Scan line and/or data wire are coupled between pel array 210 and driver element 220.In liquid crystal display 200, driving is single
Member 220 includes scanner driver 222 and data driver 224.Each pixel of pel array 210 be respectively correspond to it is a plurality of
One of scan line and one of a plurality of data lines.
In embodiments of the present invention, can with dot inversion (dot inversion), row reversion (column inversion),
Line reversion (line inversion), (1+2) dot inversion (1+2 dot inversion) or 2 dot inversions (2 dot
) etc. inversion mode drives pel array 210, and this is all in scope of the present invention.The present invention is not limited to pixel
The type of drive of array.
Fig. 3 is turned now to, it shows the implementation schematic diagram of image color graded compensation according to embodiments of the present invention.Such as Fig. 3 institutes
Show, liquid crystal display 200 also includes：Data source 300, digital gamma correction unit 310, image color graded unit 320 and numeral
Analog-converted unit 330.In principle, data source 300, digital gamma correction unit 310, image color graded unit 320 and numeral
Analog-converted unit 330 can be located among Fig. 2 data driver 224.
Digital gamma correction unit 310 receives pixel data R, G and the B transmitted by data source 300.Here, with picture
Prime number is all to explain exemplified by N (N is positive integer) according to R, G and B.Digital gamma corrects unit 310 by pixel data R, G and B
Digital gamma correction is carried out, to produce digital gamma correcting pixel data.In this embodiment of the present invention, with 6 digital gammas
Explained exemplified by correcting pixel data R+, G+, B+, R-, G- and B- (it is all N+M, and M is positive integer), but it is not intended to
The limitation present invention." R+ " represents the red pixel data with positive polarity；" R- " represents the red pixel data with negative polarity,
Remaining can the rest may be inferred.
In embodiments of the present invention, by the getable digital gamma correction pixels number of institute of digital gamma correction unit 310
It is higher according to digit, but if the treatable digit of unit (such as D/A conversion unit 330) institute of rear end is less than digital gal
The getable digital gamma correcting pixel data digits of horse correction unit 310 institute, if then by D/A conversion unit 330
Directly if the higher digital gamma correcting pixel data of conversion digit, it will slattern digital gamma correcting pixel data compared with
Low level (that is, user can not feel it and watch seniority top digit image).
Then in order to avoid wasting digit, in embodiments of the present invention, image color graded unit 320 is carrying out image color graded compensation
When, the digital gamma correcting pixel data (such as N+M) of seniority top digit can be compensated into and pass colorimetric compensation pixel count compared with lower-order digit
According to (such as N+M-K, K is positive integer).Thus, although after the compensation obtained by last pixel data digit it is slightly lower but still
Higher than the digit of raw pixel data, so, better image viewing can be presented and feels (because the level of color becomes abundant
).
Image color graded unit 320 is received corrects the digital gamma correcting pixel data R that unit 310 is transmitted by digital gamma
+, G+, B+, R-, G- and B-, and compensate into and pass colorimetric compensation pixel data R+ ', G+ ', B+ ', R- ', G- ' and B- ' (such as N+M-K
Position, K is positive integer).
D/A conversion unit 330 image color graded unit 320 is compensated after pass colorimetric compensation pixel data R+ ', G
+ ', B+ ', R- ', G- ' and B- ' carry out digital-to-analogue conversion, to obtain output image OUT.
To become more apparent upon the advantage of the embodiment of the present invention, now it is illustrated below.But when know the embodiment of the present invention not by
It is limited to this.It is beneath in the numerical value of pixels illustrated data for convenience of understanding, it is to be illustrated with decimal system system.
Such as, it is assumed that pixel data R, G and B are using decimal representation as 32,32 and 32.Unit is corrected by digital gamma
After 310,6 digital gamma corrected pixel data R+, G+, B+, R-, G- and B- assume to be respectively R+=38.25, G+=36.75, B+
=34.5, R-=38.5, G-=36.5 and B-=34.75.As to how carrying out digital gamma correction can not be particularly limited to herein
It.
After the image color graded compensation of image color graded unit 320, pass colorimetric compensation pixel data R+ ', G+ ', B+ ', R- ',
G- ' and B- ' such as, in first picture, respectively 38,36,34,38,36 and 34；In second picture, respectively 38,
37th, 35,39,37 and 35；In the 3rd picture, respectively 38,37,34,38,36 and 35；In the 4th picture, it is respectively
39th, 37,35,39,37 and 35.
From the point of view of the visual effect of human eye, among this 4 pictures, it is quite (38+38+ to pass colorimetric compensation pixel data R+ '
38+39)/4=38.25.Others pass that colorimetric compensation pixel data can the rest may be inferred.For the D/A conversion unit of lower-order digit
For 330, " 0.25 " of digital gamma correcting pixel data R+=38.25 is that (mantissa is the minimum K in N+M for mantissa
Position), D/A conversion unit 330 can not correctly change mantissa.But the mantissa of digital gamma correcting pixel data is given up
Words, can reduce the level of color again.So, in embodiments of the present invention, digital gamma is corrected into picture using image color graded compensation
The mantissa of prime number evidence mends to the multiple of different pictures and passed within colorimetric compensation pixel data.Consequently, it is possible to for digital-to-analogue conversion
For unit 330, there will not be the mantissa that can not be handled.
It can be seen that by above-mentioned example, in embodiments of the present invention, when image color graded compensation is carried out, even by seniority top digit
Pixel data compensate into the pixel data of lower-order digit, but with human eye vision effect from the point of view of, still can not/be difficult to discover, so, this
Inventive embodiments pass colorimetric compensation method and effectively digital gamma can be supported to correct.
Although digital gamma correcting pixel data R+, G+, B+, R-, G- and B- digit are higher, due to the numeral of rear end
The treatable digit of analog-converted unit institute is relatively low, so, in embodiments of the present invention, image color graded unit 320 is being schemed
As when passing colorimetric compensation, the digit of its output data (passs colorimetric compensation pixel data R+ ', G+ ', B+ ', R- ', G- ' and B- ', is (N+
M-K) position) it is less than the digit of input data (digital gamma correcting pixel data R+, G+, B+, R-, G- and B- are (N+M) position).
However, in the other possible embodiments of the present invention, if D/A conversion unit digit can it is higher if, then
The digit for passing colorimetric compensation pixel data that image color graded unit 320 is exported also can be higher.This is also in scope of the present invention.
The details for passing colorimetric compensation of the embodiment of the present invention will now be illustrated.
Fig. 4 shows that the original 8X8 sub-pixels that can be applied in the embodiment of the present invention pass one of colorimetric compensation table, and it is used for non-
Symmetrical polarity passs colorimetric compensation.When knowing, the present invention be not limited to can only the sub-pixel of application drawing 4 pass colorimetric compensation table.Tail in Fig. 4
4 related tables of number " 01 " are to be applied to continuous 4 pictures.
Fig. 5 is shown passs the adjacent schematic diagram staggered again after colorimetric compensation table is replicated by the 8X8 sub-pixels in Fig. 4, many to obtain
Colorimetric compensation table is passed in the middle of individual first.For convenience of explanation, at this using the associated sub-pixels of the mantissa " 01 " in Fig. 4 pass colorimetric compensation table as
Example is explained.If the digit of mantissa is 2, then mantissa " 01 " is represented by " 0.25 "；Mantissa " 10 " is represented by
“0.50”；Mantissa " 11 " is represented by " 0.75 ".If that is, from the point of view of with above-mentioned example, if to be directed to digital gamma
Digital gamma correcting pixel data R+=38.25 that correction unit 310 is exported are carried out if passing colorimetric compensation, then are selected " 01 "
Corresponding sub-pixel passs colorimetric compensation table.
All insert on the side (such as the right) that Fig. 4 8X8 sub-pixels are passed to each row (column) S1~S8 in colorimetric compensation table 410
Enter a blank line B1~B8, as shown in Fig. 5 table 510P.In addition, table 520P generation type is similar to table 510P, simply table
520P and table 510P is mirroring relation.In this way, carry out repeatedly, to obtain 2 table 510P, 2 table 520P, 2 tables
510N, 2 table 520N.Wherein, table 510P and table 510N is identical, and table 520P and table 520N is also identical.Yu Hou
In the application of face, table 510P and table 520P is to be used to produce positive polarity pixel data, and table 510N and table 520N is then to be used to produce
Raw negative polarity pixel data, therefore it is distinguished with title.
Then, each table 510P, 520P, 510N and 520N in Fig. 5 are given and shifted, (can also claimed with the table for obtaining the 6th figure
To pass colorimetric compensation table in the middle of second).When being shifted, by taking table 510P as an example, the pixel 530A to be compensated in row S1 is motionless, and
Another pixel 530B to be compensated is moved in blank line toward the lattice of dextroposition 1；And the pixel 530C to be compensated in S2 that is expert at is toward moving to right
1 lattice of position are moved in blank line, and pixel 530D to be compensated is then motionless.Remaining can the rest may be inferred.Can after Fig. 5 table 510P is shifted
Obtain the table 610P in Fig. 6.
By taking table 520P as an example, the pixel 540A to be compensated in row S8 is motionless, and another pixel 540B to be compensated is toward moving to right
1 lattice of position are moved in blank line；And the pixel 540C to be compensated in S7 that is expert at is moved in blank line toward the lattice of dextroposition 1, and another
Pixel 540D to be compensated is then motionless.Remaining can the rest may be inferred.The table 620P that will be can obtain after the table 520P displacements in Fig. 5 in Fig. 6.
Table 510N and 520N displacement is then slightly different from above-mentioned.By taking table 510N as an example, the pixel to be compensated in row S1
550A is moved in blank line toward the lattice of dextroposition 1, and another pixel 550B to be compensated is motionless；And the pixel to be compensated in S2 of being expert at
550C is motionless, and another pixel 550D to be compensated is moved in blank line toward the lattice of dextroposition 1.Remaining can the rest may be inferred.By Fig. 5's
The table 610N in Fig. 6 is can obtain after table 510N displacements.
By taking table 520N as an example, the pixel 560A to be compensated in row S8 is moved in blank line toward the lattice of dextroposition 1, and another is treated
Compensation pixel 560B is motionless；And the pixel 560C to be compensated in S7 that is expert at is then motionless, and another pixel 560D to be compensated turns right
1 lattice are shifted to move in blank line.Remaining can the rest may be inferred.The table 620N that will be can obtain after the table 520N displacements in Fig. 5 in Fig. 6.
After Fig. 6 table pack, Fig. 7 table is obtained.When being combined, by 2 table packs up and down in Fig. 6.To
When table 610P is combined with table 610N below, table 610P a line blank line related with the one of the table 610N of lower section is combined.
It is carefully sayed, treating in the pixel 610A to be compensated in the row S1 in the table 610P and row S1 in table 610N side blank line is mended
Repay pixel 610B and synthesize a pixel 710A to be compensated；By in the pixel 610D to be compensated in the row S1 in table 610P and table 610N
Row S1 side blank line in pixel 610C to be compensated synthesize a pixel 710B to be compensated.In addition, pixel to be compensated
710A is to include 2 sub-pixels to be compensated, and one of them sub-pixel to be compensated is positive polarity (by table 610P), another
Sub-pixel to be compensated is negative polarity (by table 610N).Analogize in this way, can obtain table 720~740.When carry out pass color
During compensation, this 4 tables 710~740 are respectively applied to continuous 4 pictures.The image that table obtained by Fig. 7 can be stored in Fig. 3 is passed
Within color element 320.
In addition, in Fig. 4~Fig. 7, oblique line block, which is represented, will be passed the pixel of colorimetric compensation.It is false when carrying out passing colorimetric compensation
If digital gamma correcting pixel data R+ (38.25) mantissa is " 01 ", for convenience of description, it is assumed that digital gamma correction pixels number
It is the S1 and G1 corresponded into table 410 according to R+, and the pixel 710A to be compensated of its correspondence into table 710, and table 720~
The pixel to be compensated of same position in 740.So, when carrying out image color graded compensation, in 4 continuous pictures, digital gal
Horse correcting pixel data R+ can be compensated into 39 (because in table 710, digital gamma correcting pixel data R+ is corresponding to a left side respectively
The pixel to be compensated at upper angle, so, its numerical value by 38 compensated to 39), 38 (because in table 720, digital gamma correction pixels
Data R+ is corresponded to the upper left corner without compensation pixel, so, its numerical value 38, without being compensated, is still 38), 38 and 38.This feelings
Condition is coincident with the example illustrated in Fig. 3.Simply, in figure 3, when being the 4th picture, digital gamma correcting pixel data R+ is
Compensated, but in example herein, then in being the 1st continuous pictures in 4 continuous pictures, digital gamma correction pixels number
Just compensated according to R+.However, so that from the point of view of appointing and taking 4 continuous pictures, will be included by passing colorimetric compensation pixel data R+ ' by 3 38 and 1
39.So, from the point of view of human eye vision effect, pass colorimetric compensation pixel data R+ ' and be equal to pixel data " 38.25 ".
In addition, in Fig. 7 table 710~740, still considering positive-negative polarity.Fig. 7 table is applied to the negative polarity of positive polarity 01
01 (that is, the mantissa of the pixel data of positive polarity is that the mantissa of the pixel data of 0.25, negative polarity is 0.25).In Fig. 7, each table
In S1 and G1, and from the point of view of S2 and G1 this 2 small square frames, positive polarity pixel data is compensated once in 4 continuous pictures,
Negative polarity pixel data is also to be compensated once in 4 continuous pictures.Thus it is possible to reach the compensation of time-domain.
As for the compensation of spatial domain, from the point of view of appointing and taking certain row or certain row, can also reach the negative polarity 01 of positive polarity 01
Compensation.Such as, in table 710 in the figure 7, from the point of view of row G1, positive polarity and negative polarity pixel data are all compensated twice
(but this row has 8 positive polarity pixel datas and 8 negative polarity pixel datas), so, its cancellation ratio is 2/8=0.25, therefore
And, it can reach the compensation of the negative polarity 01 of positive polarity 01.
Similarly, the table of all combinations can be released by foregoing description.So that mantissa is 2 as an example, according to aforesaid way, from original
The image color graded compensation table (similar Fig. 4 table) of this each applicable 8X8 can release all the tables (01,01) of 9 kinds of combinations, (01,
02), (01,03), (02,01), (02,02), (02,03), (03,01), (03,02), (03,03).Wherein, (01,01) is represented
The mantissa of positive polarity pixel is 01, and the mantissa of negative polarity pixel is 01, and remaining, which represents the meaning, to analogize.
In addition, the embodiment of the present invention can support independent polarity-independent RGB's to pass colorimetric compensation.It is beneath will explanation (01,01,
01,01,01,01,01) example, its mantissa for representing digital gamma correcting pixel data R+, G+, B+, R-, G- and B- is all
01 (that is, 0.25).
Fig. 4 table 410 is deployed, 6 parts are replicated, as shown in Figure 8.Upon deployment, give way and be separated by 5 rows (ratio between row
Such as, 5 blank lines are separated by between row S1 and S2).Then, the mutually colleague of other 5 parts of tables 410 is inserted in the side of this journey, such as,
The row S1 of other 5 parts of tables 410 is inserted in by the row S1 of the 1st part of table 410.
Then, this 6 parts of tables 410 are combined in this way.With reference to rear as shown in Figure 9.That is, in fig .9, row S1~S6
The as row S1 of that 6 parts of tables 410, remaining can the rest may be inferred.Table obtained by note that in Fig. 9 is the figure for a picture
As passing colorimetric compensation.There are 4 tables (being relevant to 4 continuous pictures respectively) in Fig. 4 mantissa 01, so, if to obtain other 3 companies
If the image color graded compensation table of continuous picture, then other 3 tables of Fig. 4 mantissa 01 are taken respectively, are that can obtain according to aforesaid way.
Like this, you can obtain can be all to mantissa 6 of 01 (that is, 0.25) digital gamma corrected pixel data R+, G+, B+,
R-, G- and B- carry out the table (multiple continuous pictures) of image color graded compensation.
Similarly, whole 3 can be released according to aforesaid way6The table (01,01,01,01,01,01,01) of kind combination, (01,01,
01,01,01,01,02) ..., (03,03,03,03,03,03,03).
Certainly, in the above description, it is to be used for for example, the present invention is not limited to this to replicate 6 parts.
Understand in summary, in embodiments of the present invention, low first number of even back-end circuit is relatively low (such as, in Fig. 3
The digit of D/A conversion unit 330 corrects the digit of unit 310 less than digital gamma), but to avoid wasting digit and being
The color of more levels is obtained, (its digit is same as the digit of D/A conversion unit 330 but less than numeral to image color graded unit
The digit of gammate 310) using image color graded principle, the position tail that D/A conversion unit 330 can not be handled
Number compensation is high-order partly to it.
In summary, although the present invention is disclosed above with embodiment, so it is not limited to the present invention.Institute of the present invention
Has usually intellectual in category technical field, without departing from the spirit and scope of the present invention, when various change and profit can be made
Decorations.Therefore, protection scope of the present invention is worked as and is defined depending on the scope of the appended claims person of defining.
Claims (12)
1. a kind of liquid crystal display, including：
One data source, the pixel data to produce N, N is positive integer；
One digital gamma corrects unit, is coupled to the data source, is corrected to carry out digital gamma to the pixel data to produce
A raw N+M digital gamma correcting pixel data, the mantissa of the digital gamma correcting pixel data is the minimum K in N+M
Position, M, K are positive integer；
One image color graded unit, is coupled to digital gamma correction unit, the digital gamma correcting pixel data is carried out into image
Colorimetric compensation is passed into N+M-K one passs colorimetric compensation pixel data, and will be used as the digital gamma correction pixels number of the K positions of mantissa
Colorimetric compensation pixel data is passed according to compensation to the multiple of different pictures；And
One converting unit, is coupled to the image color graded unit, and this is passed into colorimetric compensation pixel data is converted into an output image, its
In, the digit of the converting unit corrects the digit of unit less than the digital gamma.
2. liquid crystal display according to claim 1, wherein,
The image color graded unit includes multiple asymmetric image color graded compensation tables of polarity,
It is multiple it is original pass colorimetric compensation table replicate and it is adjacent stagger, to obtain passing colorimetric compensation table in the middle of multiple first；
Those pass the displacement of colorimetric compensation table in the middle of first, to obtain passing colorimetric compensation table in the middle of multiple second；And
Those are combined in the middle of second and passs colorimetric compensation table, to obtain those image color graded compensation tables.
3. liquid crystal display according to claim 2, wherein, replicating and adjacent staggering that those original pass colorimetric compensation table
When,
A blank line is inserted on the sides of those original each rows for passing colorimetric compensation table, and allow after insertion blank line those original pass
Colorimetric compensation telogenesis mirroring relation, colorimetric compensation table is passed to obtain those in the middle of first.
4. liquid crystal display according to claim 3, wherein, when shifting those and passing colorimetric compensation table in the middle of first,
A pixel to be compensated in same a line is motionless and shift another pixel to be compensated and move in the blank line, to obtain those
Colorimetric compensation table is passed in the middle of second.
5. liquid crystal display according to claim 4, wherein, when combining those and passing colorimetric compensation table in the middle of second,
A line that colorimetric compensation table is passed in the middle of the positive polarity second that those are passed in the middle of second to colorimetric compensation table is combined in a negative polarity
The related blank line of colorimetric compensation table is passed in the middle of second, to obtain those image color graded compensation tables.
6. liquid crystal display according to claim 1, wherein,
The image color graded unit passs colorimetric compensation table including multiple independent polarity independent pixel data images；
Multiple original colorimetric compensation tables of passing deploy, replicate and combine, and color is passed to obtain those independent polarity independent pixel data images
Compensate table.
7. a kind of image color graded compensation method, for a liquid crystal display, this method includes：
One pixel datas of N are carried out with digital gamma correction to produce a digital gamma correcting pixel data of N+M, the number
The mantissa of word gamma corrected pixel data is minimum K in N+M, and N, M, K are positive integer；
By the digital gamma correcting pixel data carry out it is image color graded compensate into N+M-K and one pass colorimetric compensation pixel data, K is
Positive integer, and the digital gamma correcting pixel data as the K positions of mantissa is compensated to the multiple of different pictures pass colorimetric compensation picture
Prime number evidence；And
This is passed into the output image that colorimetric compensation pixel data is converted into N+M-K.
8. image color graded compensation method according to claim 7, wherein,
The digital gamma correcting pixel data is subjected to image color graded compensation using multiple asymmetric polarity image color graded compensation tables
Colorimetric compensation pixel data is passed into this；
It is multiple it is original pass colorimetric compensation table replicate and it is adjacent stagger, to obtain passing colorimetric compensation table in the middle of multiple first；
Those pass the displacement of colorimetric compensation table in the middle of first, to obtain passing colorimetric compensation table in the middle of multiple second；And
Those are combined in the middle of second and passs colorimetric compensation table, colorimetric compensation table is passed to obtain multiple images.
9. image color graded compensation method according to claim 8, wherein, replicating and adjacent those original colors of passing that stagger are mended
When repaying table,
A blank line is inserted on the sides of those original each rows for passing colorimetric compensation table, and allow after insertion blank line those original pass
Colorimetric compensation telogenesis mirroring relation, colorimetric compensation table is passed to obtain those in the middle of first.
10. image color graded compensation method according to claim 9, wherein, pass colorimetric compensation table shifting those in the middle of first
When,
A pixel to be compensated in same a line is motionless and shift another pixel to be compensated and move in the blank line, to obtain those
Colorimetric compensation table is passed in the middle of second.
11. image color graded compensation method according to claim 10, wherein, those, which are combined, in the middle of second passs colorimetric compensation table
When,
A line that colorimetric compensation table is passed in the middle of the positive polarity second that those are passed in the middle of second to colorimetric compensation table is combined in a negative polarity
The related blank line of colorimetric compensation table is passed in the middle of second, to obtain those image color graded compensation tables.
12. image color graded compensation method according to claim 7, wherein,
Colorimetric compensation table is passed using multiple independent polarity independent pixel data images to be schemed the digital gamma correcting pixel data
As passing colorimetric compensation colorimetric compensation pixel data is passed into this；And
Multiple original colorimetric compensation tables of passing deploy, replicate and combine, and color is passed to obtain those independent polarity independent pixel data images
Compensate table.
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