Embodiment
In the following description, we describe various feature of the present invention.For the ease of explaining, we provide concrete configuration and details so that understand the present invention fully.Yet the professional should be known in that the present invention can realize under the condition that does not provide detail herein.In addition, can omit or simplify features more of the present invention so that the present invention is easy to understand, these features are relevant with principle and embodiment that the professional knows.
According to exemplary embodiments of the present invention, the embodiment of monitor and display equipment is described in the International Application PCT/IL02/00452 of application on June 11st, 2002, its title is " DEVICE; SYSTEM AND METHOD FORCOLOR DISPLAY ", and publish as PCT PublicationWO 02/10164 on Dec 19th, 2002, be incorporated in full that this is for reference.
With reference to Fig. 1, Fig. 1 represents according to the synoptic diagram of exemplary embodiments of the present invention more than three primary colours display system 100.
According to exemplary embodiments of the present invention, system 100 can comprise: the array of light source 112 and sub-pixel unit.For example, system 100 can comprise: the array 113 of liquid crystal (LC) unit (box) 114, for example, utilize the LC array of well-known thin film transistor (TFT) (TFT) active matrix technology; With n primary colours filter array 116, n>3 wherein, for example, it can be array 113 and put array.System 100 can comprise any suitable configurations of sub-pixel unit.System 100 can also comprise: electronic circuit 120 (" driver "), be used to drive each unit of array 114, for example, the active array addressing technology of utilizing the professional to know.According to exemplary embodiments more of the present invention, the pixel of coloured image can be reproduced by the sub-pixel unit more than three primary colours, wherein primary colours in corresponding n the primary colours of each sub-pixel unit.Back-illumination source 112 provides and produces the required light of coloured image.Based on the view data input of one or more respective pixel, can control the transmittance of each sub-pixel unit, for example, utilize the voltage that is added to corresponding lc unit in the array 113, as described below.N primary colours controller 118 can receive the view data that comprises sub-pixel data, and the pixel of this data represented coloured image and based on sub-pixel data activates some sub-pixel unit in the array 113 selectively at least to produce the decay figure.For example, controller 118 can receive red (R), green (G), and the input data of blue (B) or YcbCr form, and randomly these data of bi-directional scaling arrive required size and resolution, and based on the input data, adjust the signal amplitude that is sent to the different driving device.Controller 118 can for example, comprise the data of RGB picture content or the YcbCr data of pixel to the view data of input, converts the sub-pixel data more than three primary colours to, for example, and R, G, B, yellow (Y), and blue or green (C).The white light intensity that back-illumination source 112 provides can be carried out spatial modulation by each unit in the LC array, wherein according to the view data of one or more pixels, controls the illumination of each sub-pixel unit selectively, as described below.The corresponding chromatic filter of light transmission by chromatic filter array 116 of each sub-pixel of decaying selectively, thus required color sub-pixel combination produced.The light of people's the integrated filtering in vision system space by different color sub-pixel elements is to experience coloured image.
The aperture of LCD display is than the ratio of the net area that can be defined as display with the total area of display, wherein the net area of display is defined as the display total area except whole obstruction areas, for example, by the display entire area of TFT and column driver line and row driver line " obstruction ", this is that the professional knows.For example, can calculate the display that comprises the capable m of a l sub-pixel unit according to following formula and block the total area, wherein each sub-pixel unit comprises a TFT, and wherein every row comprises a row driver line and wherein every row comprise a column driver line:
m*L
column*t
column+l*L
row*t
row+l*m*S
tft (1)
S wherein
TftThe obstruction area of representing each TFT, L
RowAnd t
RowLength and the width of representing each row driver line respectively, and L
ColumnAnd t
ColumnLength and the width of representing every column driver line respectively.Therefore, the total area of display can equal L approx
Column* L
Row, and aperture ratio that can calculation display, wherein suppose aspect ratio AR=L
Row/ L
Column
Those skilled in the art will appreciate that blocked by TFT and/or driver line owing to offer the relatively large light of display, the higher obstruction total area can corresponding lower brightness level of display.
According to exemplary embodiments more of the present invention, utilize the array of sub-pixel elements of at least four different base colors, system 100 can be used for existing a plurality of coloured images more than the three primary colours pixel, the wherein total S of this array neutron pixel cell again
TBe far smaller than product P=s*n, wherein s represent in this image more than the number of three primary colours pixel and wherein n represent the number of these at least four different base colors, as described below.For example, can be relevant as the array neutron pixel cell number of an ingredient of product P with four or more primary colours.For example, this array can comprise such sub-pixel unit, they are arranged at least a repeatably at least three primary color sub-pixels unit color lists, and can be approximately equal to sub-pixel unit number in the color list divided by the number of four or more primary colours, as described below as the array neutron pixel cell sum of an ingredient of product P.
People's vision system can be experienced the different base colors of different spatial resolutions grade.For example, people's vision can be experienced some primary colours like this, for example, blue and blue or green primary colours, its spatial resolution is well below other primary color space resolution that can experience, and is for example green, Huang and red primary.Therefore, according to embodiments of the invention, some primary colours can show under lower spatial resolution, for example, blue and/or blue or green primary colours, it utilizes the sub-pixel unit than peanut, but does not have a strong impact on the whole resolution that the human visual system experiences coloured image, and other primary colours need show under higher spatial resolution, for example, red, green and/or yellow primary colours, as described below.
According to exemplary embodiments more of the present invention, but the sub-pixel unit in the array 113 can be arranged in the predetermined configurations that comprises predetermined repetitive pattern, this figure comprises predetermined fixed number sub-pixel unit, primary colours in corresponding n the primary colours of each sub-pixel unit.For example, array 113 can comprise the sub-pixel unit of at least four different base colors, they are arranged in repeatably three primary colours sub-pixel unit color list at least of at least the first kind and second kind, and wherein first kind of color list comprises the sub-pixel unit that does not contain these primary colours in second kind of sequence at least.Therefore, with the sub-pixel unit number of corresponding other primary colours relatively, this figure can comprise corresponding one or more predetermined primary colours than the peanut sub-pixel unit.According to some embodiment in these exemplary embodiments, the driver 120 of some sub-pixel unit, for example, the sub-pixel unit driver of corresponding one or more predetermined primary colours, the numerical value of correspondence more than the sub-pixel data combination of a pixel can be arranged, as described below.For example, utilize controller 118 can finish this manipulation of image data.
With reference to Fig. 2, but Fig. 2 represents to dispose 200 synoptic diagram according to the sub-pixel unit that an exemplary embodiments of the present invention comprises 5 primary color display devices of repetitive pattern 201.
Figure 201 can comprise the sub-pixel unit of corresponding 5 primary colours, and is for example red, and Huang is green, green grass or young crops and blue primary, and they are arranged in the row that comprises 8 sub-pixel unit.
According to an exemplary embodiments, with corresponding red, in the green and yellow primary colours sub-pixel unit number of each primary colours relatively, figure 201 can comprise each primary colours in corresponding indigo plant and the blue or green primary colours than the peanut sub-pixel unit, as described below.
Figure 201 can comprise: two sub-pixel unit of corresponding red primary, for example, sub-pixel unit 211 and 215; Two sub-pixel unit of corresponding yellow primary colours, for example, sub-pixel unit 212 and 216; Two sub-pixel unit of corresponding green primary, for example, sub-pixel unit 213 and 217; A sub-pixel unit of corresponding blue or green primary colours, for example, sub-pixel unit 214; With a sub-pixel unit of corresponding blue primary, for example, sub-pixel unit 218.
According to this exemplary embodiments, configuration 200 can comprise and is arranged at least the first kind and second kind of sub-pixel unit that can repeat color list, for example, and color list 230 and 232.Sequence 230 can comprise a sub-pixel unit at least, and for example, sub-pixel unit 214, this sub-pixel unit are the sub-pixel unit that does not contain blue or green primary colours in the sequence 232.Sequence 232 can comprise a sub-pixel unit at least, and for example, sub-pixel unit 218, this sub-pixel unit are the sub-pixel unit that does not contain blue primary in the sequence 230.
According to this exemplary embodiments, the sub-pixel unit that sequence 230 and 232 can each self-contained predetermined some primary colours subsequence, for example, red-Huang-green subsequence.According to other embodiment of the present invention, one or more repeatably color list can comprise any other predetermined sub-color list.
According to some embodiments of the present invention, each pixel of coloured image can be reproduced by the one or more sub-pixel unit in the configuration 200.For example, first pixel of coloured image can be by sub-pixel unit 214,215,216,217, and/or 218 reproduce; Second pixel adjacent with first pixel can be by sub-pixel unit 218,233,234,235, and/or 236 reproduce.According to some embodiments of the present invention, the definite numerical value of sub-pixel data combination based on two or more pixels in the corresponding coloured image, can activate the one or more sub-pixel unit in the configuration 200, for example, the sub-pixel unit of corresponding indigo plant and/or blue or green primary colours, for example, sub-pixel unit 214 and/218.Based on the sub-pixel data of the one or more pixels of correspondence, can activate other sub-pixel unit in the configuration 200, for example corresponding green, the sub-pixel unit of red and/or yellow primary colours, for example, sub-pixel unit 211,212,213,215,216,217,233,234 and/or 235.For example, respectively corresponding one or more red, one or more drivers of the sub-pixel unit of green or yellow primary colours, for example, driver 120 (Fig. 1) can have the red of corresponding one or more pixels respectively, the numerical value of green or yellow sub-pixel data.This data ordering can be provided by controller 118 (Fig. 1).The sub-pixel unit driver 120 that does not contain these primary colours in the corresponding sequence 230 and 232 can have the sub-pixel data in two or more pixels to make up the numerical value of determining.For example, the sub-pixel unit driver of corresponding blue or green primary colours can have the arithmetic mean of blue or green sub-pixel data in two or more pixels, the numerical value that weighted mean and/or any other appropriate combination are determined.The sub-pixel unit driver 120 (Fig. 1) of corresponding blue sub-pixel can have the arithmetic mean of two or more pixel medium blue sub-pixel data, the numerical value that weighted mean and/or any other appropriate combination are determined.These two or more pixels can comprise two or more neighbors, and are for example two or more vertical, level and/or diagonal angle adjacent pixels, or any other two or more pixels of coloured image.Therefore, those skilled in the art will appreciate that owing to can activate sub-pixel unit in the figure 201 reproducing two pixels, the valid pixel size (" valid pixel size ") of corresponding configuration 200 can equal half of sub-pixel unit area sum of figure 201.Controller 118 (Fig. 1) can rearrange sub-pixel data, thereby required sequence of values is provided for driver 120.
According to exemplary embodiments more of the present invention, the size of some sub-pixel unit can be different from other sub-pixel unit, in order that realize required display device white balance.For example, the area that each sub-pixel unit of corresponding indigo plant and/or blue or green primary colours covers can be red greater than correspondence, the area that each sub-pixel unit of Huang and/or green primary covers.
Those skilled in the art will appreciate that to have configuration 200 and be used to reproduce the system 100 (Fig. 1) that comprises the capable s of l 5 primary colours pixel color images and can comprise 4*s column driver line and l row driver line.This display can also comprise 4*s*l TFT, for example, and TFT on each sub-pixel unit.Therefore, total obstruction area of this display can equal:
4*s*L
column*t
column+l*L
row*t
row+4*l*s*S
tft (2)
Those skilled in the art will appreciate that, compare with the column driver line number 5*s and the TFT number 5*s*l of other 5 primary color display systems, display according to above-mentioned exemplary embodiments can comprise less column driver line number and less TFT number, for example, wherein the sub-pixel unit of 5 primary colours is used to reproduce each pixel.Therefore, according to the display of above-mentioned exemplary embodiments less relatively total obstruction area can also be arranged, thereby cause the higher brightness level, this is the total obstruction area 5*s*L with other 5 primary color display systems
Columnt
Column+ l*L
Rowt
Row+ 5*l*s*S
TftCompare with the intensity level that forms.For example, 1280 * 720 displays of 16: 9 aspect ratios are arranged, that is, if the sub-pixel unit of 5 primary colours is used to reproduce each pixel, s=1280, l=720 and * L
Row=16/9*L
Column, its aperture ratio is about 70%, that is, block the total area and be about 30%.Suppose to block the total area and comprise that 6% TFT blocks and 24% driver line blocks, and hypothesis t
Row=t
Column, then the professional is appreciated that and realizes that subpixel configuration 200 can reduce TFT and be clogged to about 5% and reduce driver line and be clogged to about 20%.Therefore, the display aperture ratio of this realization configuration 200 can increase 5%, for example, is increased to about 75%.In addition, it is about 20% to realize that subpixel configuration 200 can reduce the number of row driver, thereby can reduce to be used to activate the desired data rate of sub-pixel unit of figure 200.
Those skilled in the art will appreciate that, according to other embodiment of the present invention, any other suitable pattern of sub-pixel unit, for example, comprise any suitable two or more color lists that repeat, can be similar to formation by means of display system 100 (Fig. 1) and dispose 200 subpixel configuration, as described below.
With reference to Fig. 3 A and 3B, Fig. 3 A and 3B represent the synoptic diagram of first kind of 5 primary color sub-pixels unit figure 300 and second kind 5 primary color sub-pixels unit figure 310 respectively, and they can be used for forming the configuration 200 according to other exemplary embodiments of the present invention.
Figure 300 can comprise two different row, for example, and row 302 and row 304.Row 302 can comprise the sub-pixel unit that is arranged in " Huang-green-red-green grass or young crops-Huang-green-red-indigo plant " order.Row 304 can comprise the sub-pixel unit that is arranged in " Huang-green-red-blue-yellow-green-red-green grass or young crops " order.Therefore, figure 300 can comprise first kind of color list 303, and for example, it comprises the sub-pixel unit of primary colours " Huang-green-red-green grass or young crops "; With second kind of color list 305, for example, it comprises the sub-pixel unit of primary colours " Huang-green-red-indigo plant ".
Figure 310 can comprise two different row, for example, and row 312 and row 314.Row 312 can comprise the sub-pixel unit that is arranged in " red-Huang-green-green grass or young crops-red-Huang-green-indigo plant " order.Row 314 can comprise the sub-pixel unit that is arranged in " red-Huang-green-indigo plant-red-Huang-green-green grass or young crops " order.Therefore, figure 310 can comprise first kind of color list 313, and for example, it comprises the sub-pixel unit of primary colours " red-Huang-green-green grass or young crops "; With second kind of color list 315, for example, it comprises the sub-pixel unit of primary colours " red-Huang-green-indigo plant ".According to other embodiment of the present invention, figure 300 and/or figure 310 can comprise the sub-pixel unit of any other suitable configurations.
Those skilled in the art will appreciate that can adopt figure 300/ or figure 310 so that realize more uniform color distribution on display, the position of wherein blue or green primary colours and blue primary is to intercourse along the direction of row.
According to some embodiments of the present invention, the valid pixel in the coloured image can be reproduced by the sub-pixel unit more than delegation, as described below.
With reference to Fig. 4, but Fig. 4 represents to dispose 400 synoptic diagram according to the sub-pixel unit that another embodiment of the present invention comprises in the 5 primary color display devices of repetitive pattern 401.
Figure 401 can comprise the sub-pixel unit of corresponding 5 primary colours, and is for example red, and Huang is green, green grass or young crops and blue primary, and they are arranged in two adjacent lines 410 and 420.
According to an exemplary embodiments, figure 401 can comprise each primary colours in corresponding indigo plant and the blue or green primary colours sub-pixel unit than peanut, and corresponding red, each primary colours in the green and yellow primary colours have the sub-pixel unit of greater number, as described below.
Row 420 can comprise corresponding primary colors red respectively, Huang, red and yellow 4 sub-pixel unit 412,416,415 and 434.It is green that row 410 can comprise the corresponding primary colours of difference, green grass or young crops, green and blue 4 sub-pixel unit 413,414,417 and 418.
According to this exemplary embodiments, the sub-pixel unit of figure 401 can be arranged in repeatably color list of at least the first kind and second kind, for example, and color list 460 and 462.Sequence 460 can comprise such sub-pixel unit at least, for example, does not contain the sub-pixel unit 414 of blue or green primary colours in the sequence 462.Sequence 462 can comprise such sub-pixel unit at least, for example, does not contain the sub-pixel unit 418 of blue primary in the sequence 460.
According to this exemplary embodiments, color list 460 and/or 462 can comprise the sub-pixel unit of some primary colours predetermined subsequence, and is for example, red-Huang-green subsequence.
According to some exemplary embodiments of the present invention, each pixel of coloured image can be reproduced by the one or more sub-pixel unit in the configuration 400.For example, first pixel of coloured image can be by sub-pixel unit 416,415, and 414,417 and/or 418 reproduce; And second pixel adjacent with first pixel can be by sub-pixel unit 434,418, and 433,435 and/or 436 reproduce.According to some embodiments of the present invention, the definite numerical value of sub-pixel data combination based on two or more pixels in the corresponding coloured image, can activate the one or more sub-pixel unit in the configuration 400, for example, the sub-pixel unit of corresponding indigo plant and/or blue or green primary colours, for example, sub-pixel unit 414 and/or 418.Based on the sub-pixel data of the one or more pixels of correspondence, can activate configuration other sub-pixel unit in 400, for example corresponding green, the sub-pixel unit of red and/or yellow primary colours, for example, sub-pixel unit 416,415,417,434,435 and/or 433.For example, respectively corresponding one or more red, one or more drivers of the sub-pixel unit of green and/or yellow primary colours, for example, driver 120 (Fig. 1) can have the red of corresponding one or more pixels respectively, the numerical value of green and/or yellow sub-pixel data.This data ordering can be provided by controller 118 (Fig. 1).The sub-pixel unit driver of corresponding blue or green primary colours, for example, driver 120 (Fig. 1) can have the arithmetic mean of corresponding two or more pixels, the numerical value that weighted mean and/or any other appropriate combination are determined.The driver of the sub-pixel unit of corresponding blue sub-pixel, for example, driver 120 (Fig. 1) can have the arithmetic mean of the blue sub-pixel data of corresponding two or more pixels, the numerical value that weighted mean and/or any other appropriate combination are determined.These two or more pixels can comprise: two or more adjacent pixels, and for example two or more vertical, level and/or diagonal angle adjacent pixels, or any other two or more pixels of coloured image.Therefore, those skilled in the art will appreciate that owing to can activate sub-pixel unit in the figure 401 reproducing two pixels, the valid pixel size of corresponding configuration 400 can equal half of sub-pixel unit area sum in the figure 401.Controller 118 (Fig. 1) can rearrange sub-pixel data, thereby desired sequence of values is provided for driver 120.
According to exemplary embodiments of the present invention, the size of some sub-pixel unit can be different from other sub-pixel unit, in order that realize desired white.For example, each sub-pixel unit area of corresponding indigo plant and/or blue or green primary colours can be red greater than correspondence, each sub-pixel unit area of Huang and/or green primary.
Those skilled in the art will appreciate that display system for example, is used to reproduce and comprises the system 100 (Fig. 1) that the capable s of l 5 primary colours pixels have configuration 400, can comprise 2*s column driver line and 2*l row driver line.This display can also comprise 4*s*l TFT, for example, and TFT on each sub-pixel unit.Therefore, total obstruction area of this display can equal:
2*s*L
column*t
column+2*l*L
row*t
row+4*l*s*S
tft (3)
Those skilled in the art will appreciate that, the overall cost of driver line with 5 primary color displays of configuration 400 can be lower than the driver line cost of conventional 3 primary colours LCD display, for example, the display that comprises 3*s column driver line and l row driver line is because the cost of column driver line is higher than the cost of row driver line usually far away.The professional it should also be understood that, the overall cost of 5 primary color displays with configuration 400 can be lower than the overall cost of some 4 primary color displays, wherein the sub-pixel unit of 4 or 5 primary colours is used to reproduce each pixel, and the overall cost that is lower than some 5 primary color displays, wherein the sub-pixel unit of 5 primary colours is used to reproduce each pixel.
The professional it is also understood that with total blockage area ratio of conventional 3 primary colours LCD display, for example, its total obstruction area is 3*s*L
Columnt
Column+ l*L
Rowt
Row+ 3*l*s*S
Tft, can be 2*s*L according to total obstruction area of the display of above-mentioned exemplary embodiments
Columnt
Column+ 2*l*L
Rowt
Row+ 4*l*s*S
TftIn addition, if L
Row=16/9*L
ColumnS=1280, and l=720 are under the situation that adopts configuration 400, then can realize about 78% aperture ratio, it is higher than the attainable aperture of the 5 primary color displays ratio of corresponding configuration 200, for example, and 75%, but it is higher than the attainable aperture of corresponding 5 primary color displays ratio, for example, 70%, wherein the sub-pixel unit of 5 primary colours is used to reproduce each pixel.
Those skilled in the art will appreciate that, according to other embodiment of the present invention, the sub-pixel unit figure that any other is suitable, for example, it comprises repeatably color list of any suitable two or more, display system 100 (Fig. 1) can adopt this figure to be similar to configuration 400 configuration with formation, as described below.
With reference to Fig. 5, Fig. 5 represents the synoptic diagram of 5 primary color sub-pixels unit figures 500, and it can be used for forming the subpixel configuration according to other exemplary embodiments of the present invention.
Figure 500 can comprise 4 row, for example, and row 502, row 504, row 506 and row 508.Row 502 and row 506 can be identical, and every row comprises one 2 primary sequence, for example, and sequence " red-Huang-red-Huang ".Row 504 and row 508 can comprise 3 primary sequence respectively, for example, and " green-green grass or young crops-green-indigo plant " and 3 primary sequence, for example, " green-indigo plant-green-green grass or young crops ".Those skilled in the art will appreciate that figure 500 can be used for realizing more uniform color distribution on display, wherein blue or green primary colours and blue primary are intercoursed on the position of edge row.
Some exemplary embodiments of above-mentioned the present invention can be relevant with controller, for example, based on the definite numerical value of blue or green primary color sub-pixels data combination in the two or more pixels of correspondence, controller 118 (Fig. 1) provides this numerical value can for the sub-pixel unit driver of corresponding blue or green primary colours, and/or based on the definite numerical value of the two or more pixel medium blue of correspondence primary color sub-pixels data combination, this controller provide this numerical value can for the sub-pixel unit driver of corresponding blue primary.Yet, other exemplary embodiments of the present invention can comprise such controller, for example, controller 118 (Fig. 1), based on the definite numerical value of any other required combination of sub-pixel data of one or more pixels, this controller provides this numerical value can for the driver of one or more sub-pixel unit, as described below.
According to some embodiments of the present invention, sub-pixel data based at least the first and second pixels in the corresponding coloured image, controller 118 (Fig. 1) can provide the sub-pixel unit driver of corresponding at least the first kind and second kind color list, for example, driver 120 (Fig. 1), as described above.For example, the numerical value that combination is determined based on the sub-pixel data of at least the first and second pixels, controller 118 (Fig. 1) can activate at least one sub-pixel unit of at least one sequence in first kind and the second kind of sequence, as described below.
According to exemplary embodiments more of the present invention, based on the numerical value that the primary colours combination that does not contain in the sub-pixel data of the sub-pixel unit that is activated and first kind/second kind sequence is determined, controller 118 (Fig. 1) can activate the sub-pixel unit of first kind/second kind of sequence.For example, based on the numerical value that the green sub-pixel data and the combination of blue or green sub-pixel data of a pixel are determined, controller 118 (Fig. 1) provides this numerical value can for the driver of green sub-pixel unit; And/or the numerical value of determining based on the blue sub-pixel data of a pixel and the combination of blue or green sub-pixel data, this controller provide this numerical value can for the driver of blue sub-pixel unit.Perhaps, based on the numerical value that the blue sub-pixel data and the combination of blue or green sub-pixel data of a pixel are determined, controller 118 provides this numerical value can for the driver of blue or green sub-pixel unit; And/or the numerical value of determining based on the blue sub-pixel data of a pixel and the combination of red pieces pixel data, this controller provide this numerical value can for the driver of red pieces pixel cell.
In certain embodiments, for example, display 100 (Fig. 1) green, blue and blue or green primary colours can be respectively with predetermined green in the XYZ color space, blue and blue or green primary colours vector representation, that is,
And
According to exemplary embodiments more of the present invention, the combination of green and blue primary vector, for example, their linear combination, can be used for producing with blue or green primary colours roughly quite or comparable colour.For example, utilize following formula, can determine required linear combination:
Wherein β represents respectively and the blue parameter relevant with the green primary linear distribution with γ.Be to be understood that, linear combination according to formula 4 can be used for reproducing the colour suitable with blue or green primary colours, for example, if the chromatic value of blue or green primary colours is on the chromatic value straight line that connects green primary and blue primary, or be used for reproducing and the comparable colour of blue or green primary colours, for example, if the chromatic value of blue or green primary colours is outside the chromatic value straight line that connects green primary and blue primary, but it is relative with this straight line approaching.
As mentioned above, some pixels in the display 100 can be reproduced by a plurality of sub-pixel unit (" non-blue sub-pixel unit ") that do not contain blue sub-pixel unit, and/or some pixels can be reproduced by a plurality of sub-pixel unit (" non-blue or green sub-pixel unit ") that do not contain blue or green sub-pixel unit.According to exemplary embodiments more of the present invention, based on the numerical value that blue or green sub-pixel data is determined, controller 118 (Fig. 1) provides this numerical value can for the driver of one or more non-blue or green sub-pixel unit.For example, according to the formula of following setting, controller 118 (Fig. 1) can give blue and/or green sub-pixel unit driver provide signal B ' and G ' to reproduce a pixel, this formula is:
B′=B+C·β (5)
G′=G+C·γ
B wherein, G and C differentiate the indigo plant that pixel is reproduced in expression, green and blue or green picture content.According to exemplary embodiments more of the present invention, can " amplitude limit " B ' and/or G ' in one or two numerical value, that is, the maximum of setting blue and green primary respectively is present worth again, for example, if the maximum that the B ' that calculates according to formula 5 and/or G ' numerical value surpass indigo plant and/or green primary respectively present worth again.
Those skilled in the art will appreciate that, activate blue according to this and/or green sub-pixel unit can improve the perceived spatial resolution of blue or green primary colours based on blue or green number of sub-pixels, and/or reduce the brightness variation experienced between the pixel that pixel that non-blue sub-pixel unit reproduces and non-blue or green sub-pixel unit reproduce.
According to exemplary embodiments more of the present invention, we may need to reduce colour shift, for example, cyan color shift, it may be to activate the result that one or more non-blue or green sub-pixel unit cause because of the numerical value of determining based on blue or green sub-pixel data.According to exemplary embodiments more of the present invention, can reduce this colour shift, wherein based on the first pixel medium blue sub-pixel data and the definite corrected value of blue correction component ag B sum combination, activate the blue sub-pixel unit of first kind of color list; Based on the first pixel medium green sub-pixel data and the definite corrected value of green correction component ag G sum combination, activate the green sub-pixel unit of first kind of color list; With the corrected value of determining based on the subtractive combination of blue or green sub-pixel data in second pixel and blue or green correction component ag C, activate the blue or green sub-pixel unit of the second kind color list adjacent with first kind of color list.
According to exemplary embodiments more of the present invention, can determine correction component ag C according to this quadrat method, Δ B and Δ G, the blue or green luminance primary that it reproduces blue or green sub-pixel unit are substantially equal to blue primary brightness that blue sub-pixel unit reproduces and green primary brightness sum from green correction component ag G.In addition, we may be substantially equal to the quite colored amount of green grass or young crops of green and blue sub-pixel unit reproduction from the blue or green colored amount of blue or green correction component ag C, for example, measure sum from blue color amount and the green colour from green correction component ag G of blue correction component ag B.For example, utilize following formula can determine correction component:
(C-ΔC)·Y
C=(B+ΔB)·Y
B+ΔG·Y
G (6)
Y wherein
C, Y
B, and Y
GExpression is blue or green respectively, the brightness of indigo plant and green primary.
Substitution formula 4 in formula 7, and rearrange and wherein everyly can obtain following formula:
ΔB=βΔC (8)
ΔG=γΔC (9)
Substitution formula 8 and 9 in formula 6, and rearrange and wherein everyly can obtain following formula:
According to exemplary embodiments of the present invention, controller 118 (Fig. 1) can be determined the numerical value of blue or green correction component ag C, for example, and substitution luminance primary value Y in formula 10
C, Y
B, and Y
G, the numerical value of the blue sub-pixel data of predetermined parameters β and γ and corresponding first pixel.Utilize formula 8 and 9, controller 118 can also be determined the numerical value of blue correction component ag B and/or the numerical value of green correction component ag G.Based on correction component ag B, Δ G and Δ C, controller 118 can be given blue, and green and blue or green sub-pixel unit provides the numerical value of correction, as described above.
According to exemplary embodiments more of the present invention, if the maximum that the corrected value that offers the corrected value of blue sub-pixel unit and/or offer green sub-pixel unit surpasses indigo plant and/or green primary respectively is present worth again, then can amplitude limit offer the corrected value of blue sub-pixel and/or offer the corrected value of green sub-pixel.
Some exemplary embodiments of the present invention described above relate to based on the green and/or blue sub-pixel unit of blue or green sub-pixel data activation; And/or green based on the corrected value activation, blue and/or blue or green sub-pixel unit.Yet, can realize other embodiment of the present invention similarly, wherein based on other sub-pixel data, for example, blue sub-pixel data activates one or more other sub-pixel unit, for example, blue or green sub-pixel unit or blue or green and red pieces pixel cell; And/or, activate other sub-pixel unit based on corrected value, and for example, green grass or young crops, red and blue sub-pixel unit.For example, in other embodiment, based on any appropriate combination of the sub-pixel data of one or more pixels, for example, the combination of the spatial function of corresponding one or more pixels can activate one or more sub-pixel unit.
Though exemplary device more described above, system and/or method are to describe being used to reproduce under the linguistic context of 5 primary colours devices, but those skilled in the art will appreciate that, by suitable variation and in conjunction with the device that is used to reproduce greater or less than 5 primary colours, can realize similar device, system and/or method.
Though we have illustrated and described some feature of the present invention herein, general professional can do various changes to these features, replaces and variation.So, should be understood that appending claims can cover these changes and variation, because they all are within the spirit and scope of the present invention.