CN101650930A - Imaging method of display - Google Patents

Abstract

The invention discloses an imaging method of a display. The display comprises a plurality of pixels arranged in a matrix, wherein each pixel comprises four secondary pixels with different colors, which are arranged in a 2*2 matrix. The sampling range of the imaging method is only located in an area formed by the pixel including the secondary pixel and another pixel adjacent to the pixel; and the dimensionality of the matrix formed by the pixels in the sampling range is smaller than or equal to the 2*2 matrix. Then a transfer matrix with the dimensionality being smaller than or equal to 2*2, which corresponds to the sampling range, is obtained. Thus, image information corresponding to a first color space can be received, and the transfer matrix can transfer the image information with a first color into image information in a second color space from the first color space, so that the secondary pixels with the first color can display the image information with the first color in the second color space.

Description

The formation method of display

[technical field]

The invention relates to a kind of formation method of display, and particularly relevant for a kind of formation method that improves image resolution.

[background technology]

Along with the progress of science and technology, people are more and more higher to the requirement of display, wish that display is frivolous, high image quality, low power consumption.Especially, for the Portable display, low power consumption and high brightness are the emphasis that people pay close attention to.Therefore, develop RGBW (red, green, blue and white) display that can improve penetrance backlight and reduce power consumption backlight in recent years.The RGBW display has the sub picture element of red, green, blue, four kinds of colors such as white, is that the high penetration by white picture element promotes display brightness.On the other hand, it is to promote the picture element aperture opening ratio and promote display brightness by reducing picture element quantity that technology is also arranged, to reach the effect of power saving.

Yet, when display picture element quantity reduces, the physical resolution that display can show limited (this claims picture element resolution), so more develop the sub picture element formation method (Sub-pixel rendering, SPR).The formation method of this type must be arranged in pairs or groups, and different sub picture elements are arranged and design construction goes out suitable algorithm, so that the resolution during show image is increased to sub picture element resolution.Because the size of sub picture element is littler than picture element, human eye can feel that the resolution of image improves, and promptly vision addressability improves.

[summary of the invention]

The invention provides a kind of formation method that show image resolution can be increased to the display of sub picture element resolution.

It is simple and rapid to the invention provides a kind of operational method, and helps to reduce system burden, the formation method of the display of elevator system usefulness.

For specifically describing content of the present invention, a kind of formation method of display is proposed at this.Described display comprises a plurality of picture elements of arranged, and wherein each picture element comprises the sub picture element of four different colours that are arranged as the 2X2 matrix.This formation method defines the sampling scope of a sub picture element, the scope of wherein taking a sample only is positioned at the picture element itself that comprises sub picture element and the zone that at least another picture element constituted adjacent with picture element, and the matrix that those picture elements constituted that the sampling scope is located in, its dimension are less than or equal to a 2X2 matrix.Then, try to achieve the transition matrix that the pairing dimension of sampling scope is less than or equal to 2X2.So, can receive image information, and be the image information of one second color space from first color space transformation with the image information of first color by transition matrix corresponding to one first color space.Afterwards, make the sub picture element of first color show the image information of first color of second color space.

In one embodiment of this invention, the sub picture element that is positioned at first row, first row in each picture element is first color, the sub picture element that is positioned at the first row secondary series is second color, and the sub picture element that is positioned at second row, first row is the 3rd color, and the sub picture element that is positioned at the second row secondary series is the 4th color.

In one embodiment of this invention, aforementioned first color, second color, the 3rd color and the 4th color be selected from respectively redness, blueness, green and white in a kind of color.

In one embodiment of this invention, the red sub picture element in each picture element can be adjacent with green sub picture element and blue sub picture element respectively.

In one embodiment of this invention, described display formation method comprises that more the image information to second color carries out computing.That is from first color space transformation image information of one second color space with the image information of second color, by transition matrix; And, make the sub picture element of second color show the image information of second color of second color space.

In one embodiment of this invention, described display formation method comprises that more the image information to the 3rd color carries out computing.That is from first color space transformation image information of one second color space with the image information of the 3rd color, by transition matrix; And, make the sub picture element of the 3rd color show the image information of the 3rd color of second color space.

In one embodiment of this invention, described display formation method comprises that more the image information to the 4th color carries out computing.That is from first color space transformation image information of one second color space with the image information of the 4th color, by transition matrix; And, make the sub picture element of the 4th color show the image information of the 4th color of second color space.

In one embodiment of this invention, the formation method of described display does not carry out computing and conversion to the image information of the 4th color, and makes the sub picture element of the 4th color show the image information of the 4th color of first color space.

In one embodiment of this invention, when the sub picture element of all colours showed identical color range, those sub picture element brightness of aforementioned the 4th color of not changing were minimum.

In one embodiment of this invention, the online of another sub picture element of pairing sub picture element of described sampling scope and adjacent picture element has a mid point, and mid point can be passed through in the border of sampling scope.

In one embodiment of this invention, the method for trying to achieve transition matrix comprises the ratio of the area of trying to achieve sampling scope and its each picture element that is located in respectively, with as a weighted value.

In one embodiment of this invention, is that the method for the image information of second color space comprise the sub picture element of one first color taken a sample with the image information of first color from first color space transformation by transition matrix, with the image information of first color that receives a plurality of picture elements that the sampling scope is located in; And, the image information of first color of described a plurality of picture elements is multiplied by pairing weighted value respectively, and adds up, to obtain the image information of second color space.

In one embodiment of this invention, each time picture element be shaped as square.

The size that the present invention also can not limit the sampling scope with and the dimension of pairing transition matrix, and the image information to the 4th color does not carry out computing and conversion, make the sub picture element of the 4th color show the image information of original first color space, to save system resource, elevator system usefulness.

Based on above-mentioned, the present invention adopts the sub picture element formation method, and can select to use dimension to be less than or equal to 2 * 2 transition matrix and carry out the sub picture element computing of each color.Compared to adopted dimension easily in the past is the formation method of the transition matrix more than 3 * 3, the sampling scope of sub picture element formation method of the present invention is less, and the dimension of pairing transition matrix is also less, and operational method is simple and rapid, help to reduce system burden, elevator system usefulness.In addition, the present invention also can select not the image information of particular color is carried out computing and conversion, to save system resource, further elevator system usefulness.

For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.

[description of drawings]

Fig. 1 is the process flow diagram according to the formation method of a kind of display of one embodiment of the invention.

Fig. 2 illustrates the formation method that uses Fig. 1 carries out computing and conversion to the white point of one 255 color range process.

Fig. 3 illustrate present embodiment transition matrix ask method.

Fig. 4 illustrates the process of changing the image information of sub picture element by transition matrix.

Fig. 5 illustrates the process of using the formation method of Fig. 1 the white point of one 255 color range to be carried out computing and conversion according to another embodiment of the present invention.

Fig. 6 illustrates the process of the white point of one 255 color range being carried out image computing and conversion according to another embodiment of the present invention.

Fig. 7 illustrates the process of the white point of one 255 color range being carried out image computing and conversion according to further embodiment of this invention.

[primary clustering symbol description]

P: picture element

R, R1 ~ R4: red sub picture element

G, G1 ~ G4: green sub picture element

B, B1 ~ B4: blue sub picture element

W, W1 ~ W4: white sub picture element

C1 ~ C4: sampling scope

310: the sampling scope

320: the picture element matrix

410: green image information

420: red image information

430: blue image information

440: white image information

910 ~ 940: full-color image information

[embodiment]

Be operation efficiency and the imaging effect that further improves the sub picture element formation method, the present invention proposes and adopt dimension to be less than or equal to the formation method that 2 * 2 transition matrix carries out the sub picture element computing of each color.The more existing sub picture element formation method of the sampling scope of this kind method comes for a short time, and good high-resolution image quality can be provided equally.On the other hand, the present invention can also select not the image information of particular color is carried out computing and conversion, for example is chosen under the identical color range, and the sub picture element that display brightness is minimum does not carry out computing to it, makes it show original image information.So, can save system resource equally, elevator system usefulness.And the reason of selecting the minimum sub picture element of display brightness for use is its minimum that influences for whole display frame, still can keep the display effect of certain quality.

To be the formation method that example illustrates display proposed by the invention below with the RGBW display.Yet in the practical application, the present invention does not limit the color and the arrangement mode of the sub picture element of display, and the selected cie system of color representation cie that will change or not change depends on actual demand.

Fig. 1 is the process flow diagram according to the formation method of a kind of display of one embodiment of the invention.Fig. 2 illustrates the formation method that uses Fig. 1 carries out computing and conversion to the white point of one 255 color range process.

Please also refer to Fig. 1 and 2, the display of present embodiment comprises a plurality of picture element P of arranged, wherein each picture element P comprises the sub picture element of four different colours that are arranged as the 2X2 matrix, comprises red sub picture element R, green sub picture element G, blue sub picture element B and white sub picture element W.Red sub picture element R among each picture element P can be adjacent with green sub picture element G and blue sub picture element B respectively, and relative with white sub picture element W.In addition, the preferred shape of each red sub picture element R, green sub picture element G, blue sub picture element B or white sub picture element W is a square.Illustrate as Fig. 2, the white point of 255 color ranges of first color space is positioned at the central authorities of picture, it is that white sub picture element W by the blue sub picture element B of the green sub picture element G of the red sub picture element R of 255 color ranges, 255 color ranges, 255 color ranges and 255 color ranges is constituted, and all the other locational sub picture elements are all 0 color range.

The formation method of present embodiment at first as the step 110 of Fig. 1 with shown in Figure 2, receive image information corresponding to first color space, promptly receive four sub picture element R, G of 255 color ranges, the image information of B, W.And shown in step 122 ~ 128, selecting by transition matrix is the image information 410 ~ 440 of one second color space from first color space transformation with the image information of sub picture element R, G, B, W respectively.Afterwards, just shown in step 132 ~ 138, make red R 1 ~ R4 all on the picture, green G1 ~ G4, blue B1 ~ B4 and white sub picture element W1 ~ W4 show the image information of pairing second color space respectively.The dimension of the transition matrix that adopt in this place is less than or equal to 2X2, so that preferable operation efficiency to be provided.

Fig. 3 further illustrate present embodiment transition matrix ask method, wherein be to be that example describes with green sub picture element.Yet, the transition matrix of other color sub picture element ask that method can the rest may be inferred.Please refer to Fig. 1 and Fig. 3, at first shown in step 160, define the sampling scope 310 of green sub picture element G, the scope of wherein taking a sample 310 is positioned at the picture element P itself that comprises green sub picture element G and the adjacent zone that another picture element constituted at least of picture element P therewith, and the matrix that picture element constituted 320 that sampling scope 310 is located in, its dimension are less than or equal to a 2X2 matrix.More specifically, choosing of matrix 320 is whether to contain sampling scope 310 with each picture element to decide.For example, the sampling scope 310 of Fig. 3 is arranged in four picture elements in the upper right corner, and these four picture elements have been contained the sampling scope of different area size, thereby are defined as the picture element matrix 320 that sampling scope 310 is done to fall.In addition, the sampling scope 310 of present embodiment is that online mid point by selected green sub picture element G and adjacent other green sub picture element G defines and forms.Online mid point can be passed through in the border of in other words, sampling scope 310.

Then, shown in step 170, try to achieve sampling scope 310 pairing transition matrixes.Please also refer to Fig. 3, present embodiment according to sampling scope 310 with area ratio that should four picture elements is tried to achieve the transition matrix Matrix_G of the pairing 2X2 of green sub picture element G, promptly, try to achieve the ratio of sampling scope 310 and the area of its each picture element that is located in respectively, with as each weighted value among the transition matrix Matrix_G.With the picture element P ' that is positioned at the upper right corner is example, and it has contained the sampling scope 312 of little part, and transition matrix Matrix_G is the area ratio of sampling scope 312 and picture element P ' corresponding to the weighted value of picture element P '.In the present embodiment, sampling scope 312 is 0.0625 with the area ratio of picture element P '.In like manner, can be in the hope of other three picture element P ", P ' " and the area ratio of P and its sampling scope that contains be 0.1875,0.1875 and 0.5625.Thereby as shown in Figure 3, it is as follows to try to achieve transition matrix Matrix_G:

$\mathrm{Matrix}\_G=\left[\begin{array}{cc}0.1875& 0.0625\\ 0.5625& 0.1875\end{array}\right]$

In like manner, it is as follows to try to achieve red sub picture element R, blue sub picture element B and the pairing transition matrix of white sub picture element W:

$\mathrm{Matrix}\_R=\left[\begin{array}{cc}0.0625& 0.1875\\ 0.1875& 0.5625\end{array}\right]$

$\mathrm{Matrix}\_B=\left[\begin{array}{cc}0.1875& 0.5625\\ 0.0625& 0.1875\end{array}\right]$

$\mathrm{Matrix}\_W=\left[\begin{array}{cc}0.5625& 0.1875\\ 0.1875& 0.0625\end{array}\right]$

Try to achieve after the aforementioned transition matrix, just can shown in step 122 ~ 128 of Fig. 1, be the image information of one second color space from first color space transformation with the image information of sub picture element R, G, B, W respectively by transition matrix.

Fig. 4 further illustrates the process of image information of coming the green sub picture element G of transition diagram 2 by transition matrix Matrix_G, with as the example explanation.As shown in Figure 4, in regular turn each picture element P is taken a sample, to receive the green image information of each picture element that the sampling scope is located in, this is the image information of first color space.And, the green image information of those picture elements P is multiplied by pairing weighted value respectively, add up, to obtain the green image information 410 of second color space.More specifically, when green sub picture element G1 is taken a sample, receive the green image information of first color space among the picture element array S1, i.e. the image information of each the green sub picture element among the picture element array S1.And, the image information of each the green sub picture element among the picture element array S1 is multiplied by the weighted value of transition matrix Matrix_G, add up again, so just can obtain the image information of green sub picture element G1, wherein

G1＝0.5625×G+0.1875×0+0.1875×0+0.0625×0＝0.5625G

In like manner, it is as follows to try to achieve the image information of green sub picture element G2 ~ G4:

G2＝0.5625×0+0.1875×G+0.1875×0+0.0625×0＝0.1875G

G3＝0.5625×0+0.1875×G+0.1875×0+0.0625×0＝0.1875G

G4＝0.5625×0+0.1875×0+0.1875×0+0.0625×G＝0.0625G

Change speech, present embodiment is by the transition matrix Matrix_G of 2X2, and the original image information corresponding to the green sub picture element G of first color space is assigned among its green sub picture element G1 ~ G4 to four 2X2 of angular direction.

Please refer to Fig. 2, similarly, present embodiment can repeat above-mentioned steps, respectively red sub picture element, blue sub picture element and white sub picture element are taken a sample, and, try to achieve red image information 420, blue image information 430 and the white image information 440 of second color space by pairing transition matrix Matrix_R, Matrix_B, Matrix_W.Originally, to the angular direction, be assigned to the sub picture element R1 ~ R4 of second color space towards it corresponding to the image information of the red sub picture element R of first color space.Originally, to the angular direction, be assigned to the sub picture element B1 ~ B4 of second color space towards it corresponding to the image information of the blue sub picture element B of first color space.Originally, to the angular direction, be assigned to the sub picture element W1 ~ W4 of second color space towards it corresponding to the image information W of the white sub picture element of first color space.

Therefore, in conjunction with aforesaid green image information 410, red image information 420, blue image information 430 and white image information 440, finally can obtain a full-color image information 910 of second color space, the resolution of its image is increased to sub picture element resolution, help to improve display effect, for example jagged image border can become more level and smooth, so that good display quality to be provided.

Fig. 5 illustrates the process of using the formation method of Fig. 1 the white point of one 255 color range to be carried out computing and conversion according to another embodiment of the present invention.Present embodiment adopts sampling scope and the transition matrix identical with previous embodiment, main difference is that present embodiment selects the image information B of blueness is not carried out computing and conversion, promptly omitted the step 128 and 138 of Fig. 1, make blue sub picture element show the image information B of original first color space, to save system resource, elevator system usefulness.In addition, by pairing transition matrix Matrix_G, Matrix_R, Matrix_W, try to achieve the red image information 420 of the green image information 410 of the green sub picture element G1 ~ G4 of second color space, red sub picture element R1 ~ R4 and the white image information 440 of white sub picture element W1 ~ W4.

Relevant switch process please refer to previous embodiment, no longer repeats to give unnecessary details herein.In conjunction with the blue image information B and the white image information 440 of aforesaid green image information 410, red image information 420, unconverted, finally can obtain a full-color image information 920 of second color space.The present embodiment selection is not carried out computing and conversion to the image information B of blueness, rather than selects other color, mainly is to consider the influence degree of each color to image resolution.More specifically, when the sub picture element of all colours showed identical color range, blue sub picture element brightness was minimum, therefore to the minimum that influences of human eye vision, can reduce the loss of vision addressability as far as possible, make image resolution still maintain in the acceptable good range.

On the other hand, the present invention's size of not limiting the sampling scope with and the dimension of pairing transition matrix.Below enumerate the formation method that other embodiment illustrates other sampling scope of employing and transition matrix again.

Fig. 6 illustrates the process of the white point of one 255 color range being carried out image computing and conversion according to another embodiment of the present invention.The sampling scope 310 of present embodiment is corresponding to the picture element matrix of 1X2, and the employing dimension is the transition matrix of 1X2.As shown in Figure 6, present embodiment to the pairing transition matrix of sampling scope C1 that red sub picture element R adopts is:

Matrix_R＝[0.25 0.75]

Present embodiment to the pairing transition matrix of sampling scope C2 that green sub picture element G adopts is:

Matrix_G＝[0.5 0.5]

Present embodiment to the pairing transition matrix of sampling scope C3 that blue sub picture element R adopts is:

Matrix_B＝[0.75 0.25]

In addition, white sub picture element W does not change, so transition matrix can be considered:

Matrix_W＝[1]

The practice with reference to previous embodiment, present embodiment can pass through aforementioned transition matrix transition matrix Matrix_R equally, Matrix_G, Matrix_B, Matrix_W, respectively with redness, green and blue image information is the image information of one second color space from first color space transformation, and make redness respectively, green and blue sub picture element shows the image information of pairing second color space, and white sub picture element is kept the image information of original first color space, summation can obtain a full-color image information 930 of second color space, the resolution of its image can be increased to sub picture element resolution equally, help to improve display effect, good display quality is provided.

Fig. 7 illustrates the process of the white point of one 255 color range being carried out image computing and conversion according to further embodiment of this invention.The sampling scope 310 of present embodiment is corresponding to the picture element matrix of 1X3, and the employing dimension is the transition matrix of 1X3.As shown in Figure 7, present embodiment to the pairing transition matrix of sampling scope C1 that red sub picture element R adopts is:

Matrix_R＝[0.25 0.75 0]

Present embodiment to the pairing transition matrix of sampling scope C2 that green sub picture element G adopts is:

Matrix_G＝[0 0.5 0.5]

Present embodiment to the pairing transition matrix of sampling scope C3 that blue sub picture element R adopts is:

Matrix_B＝[0.75 0.25 0]

Present embodiment to the pairing transition matrix of sampling scope C4 that white sub picture element W adopts is:

Matrix_W＝[0.75 0.25 0]

The practice with reference to previous embodiment, present embodiment can pass through aforementioned transition matrix transition matrix Matrix_R equally, Matrix_G, Matrix_B, Matrix_W, respectively with redness, green, blue and white image information is the image information of one second color space from first color space transformation, and make redness respectively, green, blue and white sub picture element shows the image information of pairing second color space, to obtain a full-color image information 940 of second color space, the resolution of its image can be increased to sub picture element resolution equally, help to improve display effect, good display quality is provided.

In sum, the present invention's sub picture element color and quantity of not limiting the dimension of transition matrix and carrying out video conversion.When select using dimension to be less than or equal to 2 * 2 transition matrix to carry out the sub picture element computing, operational method is simple and rapidly, helps to reduce system burden, elevator system usefulness.In addition, when selecting not image information to particular color to carry out computing, can save system resource, further elevator system usefulness with conversion.

Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.

Claims (24)

1. the formation method of a display, this display comprises a plurality of picture elements of arranged, and wherein each picture element comprises the sub picture element of four different colours that are arranged as the 2X2 matrix, and this formation method comprises:

Define the sampling scope of a sub picture element, wherein should the sampling scope be positioned at this picture element itself that comprises this sub picture element and the zone that at least another picture element constituted adjacent with this picture element, and the matrix that those picture elements constituted that should the sampling scope be located in, its dimension is less than or equal to a 2X2 matrix;

Try to achieve the pairing dimension of this sampling scope and be less than or equal to the transition matrix of 2X2;

Reception is corresponding to the image information of one first color space;

With the image information of first color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of first color show the image information of first color of this second color space.

2. the formation method of display according to claim 1, it is characterized in that, the sub picture element that is positioned at first row, first row in each picture element is first color, the sub picture element that is positioned at the first row secondary series is second color, the sub picture element that is positioned at second row, first row is the 3rd color, and the sub picture element that is positioned at the second row secondary series is the 4th color.

3. the formation method of display according to claim 2 is characterized in that, this first color, this second color, the 3rd color and the 4th color be selected from respectively redness, blueness, green and white in a kind of color.

4. the formation method of display according to claim 3 is characterized in that, the red sub picture element in each picture element can be adjacent with green sub picture element and blue sub picture element respectively.

5. the formation method of display according to claim 1 is characterized in that, more comprises:

With the image information of second color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of second color show the image information of second color of this second color space.

6. the formation method of display according to claim 5 is characterized in that, more comprises:

With the image information of the 3rd color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of the 3rd color show the image information of the 3rd color of this second color space.

7. the formation method of display according to claim 6 is characterized in that, more comprises:

With the image information of the 4th color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of the 4th color show the image information of the 4th color of this second color space.

8. the formation method of display according to claim 6 is characterized in that, more comprises:

Make those sub picture elements of the 4th color show the image information of the 4th color of this first color space.

9. the formation method of display according to claim 8 is characterized in that, when those sub picture elements of all colours showed identical color range, those sub picture element brightness of the 4th color were minimum.

10. the formation method of display according to claim 1 is characterized in that, another sub picture element of pairing this sub picture element of this sampling scope and adjacent picture element online has a mid point, and this mid point can be passed through in border that should the sampling scope.

11. the formation method of display according to claim 1 is characterized in that, the method for trying to achieve this transition matrix comprises:

Try to achieve the ratio of the area of this sampling scope and its each picture element that is located in respectively, with as a weighted value.

12. the formation method of display according to claim 11 is characterized in that, comprises from the method for this first color space transformation for the image information of this second color space by the image information of this transition matrix with first color:

Sub picture element to one first color is taken a sample, with the image information of this first color of receiving those picture elements that this sampling scope is located in; And

The image information of this first color of those picture elements is multiplied by pairing weighted value respectively, and adds up, to obtain the image information of this second color space.

13. the formation method of display according to claim 1 is characterized in that, picture element is shaped as square each time.

14. the formation method of a display, this display comprise a plurality of picture elements of arranged, wherein each picture element comprises the sub picture element of four different colours that are arranged as the 2X2 matrix, and this formation method comprises:

Define the sampling scope of a sub picture element, wherein should the sampling scope only be positioned at this picture element itself that comprises this sub picture element and the zone that at least another picture element constituted adjacent with this picture element;

Try to achieve the pairing transition matrix of this sampling scope;

Reception is corresponding to the image information of this first color space;

With the image information of first color image information that is one second color space by pairing transition matrix from this first color space transformation, but do not change the image information of the 4th color; And

Make those sub picture elements of first color show the image information of this second color space, and make those sub picture elements of the 4th color show the image information of this first color space.

15. the formation method of display according to claim 14, it is characterized in that, the sub picture element that is positioned at first row, first row in each picture element is first color, the sub picture element that is positioned at the first row secondary series is second color, the sub picture element that is positioned at second row, first row is the 3rd color, and the sub picture element that is positioned at the second row secondary series is the 4th color.

16. the formation method of display according to claim 15 is characterized in that, this first color, this second color, the 3rd color and the 4th color be selected from respectively redness, blueness, green and white in a kind of color.

17. the formation method of display according to claim 16 is characterized in that, the red sub picture element in each picture element can be adjacent with green sub picture element and blue sub picture element respectively.

18. the formation method of display according to claim 14 is characterized in that, more comprises:

With the image information of second color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of second color show the image information of second color of this second color space.

19. the formation method of display according to claim 18 is characterized in that, more comprises:

With the image information of the 3rd color image information that is one second color space by pairing transition matrix from this first color space transformation; And

Make those sub picture elements of the 3rd color show the image information of the 3rd color of this second color space.

20. the formation method of display according to claim 14 is characterized in that, when those sub picture elements of all colours showed identical color range, those sub picture element brightness of the 4th color were minimum.

21. the formation method of display according to claim 14 is characterized in that, another sub picture element of pairing this sub picture element of this sampling scope and adjacent picture element online has a mid point, and this mid point can be passed through in border that should the sampling scope.

22. the formation method of display according to claim 14 is characterized in that, the method for trying to achieve this transition matrix comprises:

Try to achieve the ratio of the area of this sampling scope and its each picture element that is located in respectively, with as a weighted value.

23. the formation method of display according to claim 22 is characterized in that, comprises from the method for this first color space transformation for the image information of this second color space by the image information of this transition matrix with first color:

Sub picture element to one first color is taken a sample, with the image information of this first color of receiving those picture elements that this sampling scope is located in; And

The image information of this first color of those picture elements is multiplied by pairing weighted value respectively, and adds up, to obtain the image information of this second color space.

24. the formation method of display according to claim 14 is characterized in that, picture element is shaped as square each time.

Images