CN105096805A - Display apparatus and sub pixel rendering method - Google Patents
Display apparatus and sub pixel rendering method Download PDFInfo
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Abstract
The invention discloses a display apparatus and a sub pixel rendering method. The display apparatus comprises multiple pixel groups, and the pixel groups comprise first sub pixel groups and second sub pixel groups; the first sub pixel groups comprise first sub pixels, second sub pixels and third sub pixels; the second sub pixel groups comprise first sub pixels, fourth sub pixels and fifth sub pixels; the second sub pixels and the fifth sub pixels are the same in color type yet different in chroma; and the third sub pixels and the fourth sub pixels are the same in color type yet different in chroma. According to the invention, the sub pixels with the same color type yet different chroma are employed in sub pixel arrangement so that the penetrating power of a display panel is improved while the resolution is not reduced and the color gamut is not broadened.
Description
Technical field
The application relates to display technique field, is specifically related to display device and sub-pixel rendering intent.
Background technology
In order to obtain better display effect, the display device of high resolving power and high colour gamut becomes the development trend of current display technique.In prior art, along with the increase of display panel resolution, Pixel Dimensions reduces, and the aperture opening ratio of display panel reduces gradually, and penetrance is reduced; When realizing high colour gamut, needing increase the thickness of color blocking or adopt the color blocking of high dye strength, result also in the reduction of penetrance, thus have impact on display effect.Therefore, need while promoting resolution and colour gamut, solve the low problem of display panel penetrance.
Summary of the invention
In view of this, the display device that a kind of high resolving power, high colour gamut, high penetration can be provided is expected.Meanwhile, the rendering intent that pixel in a kind of display device can be provided also is expected, to show image by this display device.In order to solve above-mentioned one or more problems, this application provides display device and sub-pixel rendering intent.
On the one hand, this application provides a kind of display device, comprise multiple pixel groups, pixel groups comprises the first sub-pixel group and the second sub-pixel group; First sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel; Second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel; Wherein, the second sub-pixel is identical with the 5th sub-pixel colors type, and colourity is different; 3rd sub-pixel is identical with the 4th sub-pixel colors type, and colourity is different.
Second aspect, this application provides a sub pixel rendering intent, comprising: the source pixel matrix obtaining the three primary colors pel array of input, and source pixel matrix comprises the source pixel group of the arrangement in matrix, and source pixel group comprises three primary colors sub-pixel; Based on source pixel matrix, from the display device that such as the application's first aspect provides, determine display unit; Based on the brightness value of three primary colors sub-pixel each in source pixel group, determine the brightness of each sub-pixel in display unit; Wherein, display unit comprises a first sub-pixel group and a second sub-pixel group; First sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel; Second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel; Second sub-pixel is identical with the 5th sub-pixel colors type, and colourity is different; 3rd sub-pixel is identical with the 4th sub-pixel colors type, and colourity is different.
The display device that the application provides and sub-pixel rendering intent, by adopting the sub-pixel of the different colourity of same color type in arrangement of subpixels, improve the penetrance of display panel while not reducing resolution, widening colour gamut.
Accompanying drawing explanation
That is done with reference to the following drawings by reading is described in detail non-limiting example, and the other features, objects and advantages of the application will become more obvious:
Fig. 1 is the floor map of first embodiment of pixel groups arrangement in the application's display device;
Fig. 2 is the floor map of second embodiment of pixel groups arrangement in the application's display device;
Fig. 3 is the floor map of the 3rd embodiment of pixel groups arrangement in the application's display device;
Fig. 4 is the floor map of the 4th embodiment of pixel groups arrangement in the application's display device;
Fig. 5 is the floor map of the 5th embodiment of pixel groups arrangement in the application's display device;
Fig. 6 is the process flow diagram of an embodiment of the application's sub-pixel rendering intent;
Fig. 7 is a structural representation of the preimage prime matrix of three primary colors pel array;
Fig. 8 is the corresponding relation schematic diagram of display unit in the display device shown in source pixel matrix and Fig. 4 in three primary colors pel array.
Embodiment
Below in conjunction with drawings and Examples, the application is described in further detail.Be understandable that, specific embodiment described herein is only for explaining related invention, but not the restriction to this invention.It also should be noted that, for convenience of description, in accompanying drawing, illustrate only the part relevant to Invention.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the application in detail in conjunction with the embodiments.
Please refer to Fig. 1, it illustrates the floor map of first embodiment of pixel groups arrangement in the application's display device.This display device can be LCD (LiquidCrystalDisplay, liquid crystal display) or OLED (OrganicLight-EmittingDiode, Organic Light Emitting Diode) display screen.As shown in Figure 1, display device comprises multiple mutually isostructural pixel groups 10.In pixel groups 10, the first sub-pixel 111, second sub-pixel 112 and the 4th sub-pixel 114 are in the arrangement of the first row order, and the 3rd sub-pixel 113, first sub-pixel 111 and the 5th sub-pixel 115 are in the second row order arrangement.Pixel groups 10 can comprise the first sub-pixel group 11 and the second sub-pixel group 12.Wherein the first sub-pixel group 11 can comprise the first sub-pixel 111, second sub-pixel 112 and the 3rd sub-pixel 113; Second sub-pixel group 12 can comprise the first sub-pixel 111, the 4th sub-pixel 114 and the 5th sub-pixel 115.Wherein the second sub-pixel 112 is identical with the color type of the 5th sub-pixel 115, and colourity is not identical; 3rd sub-pixel 113 is identical with the color type of the 4th sub-pixel 114, and colourity is not identical.
In an embodiment of the present invention, the colourity of sub-pixel can be understood as the color of sub-pixel at CIE (CommissionInternationaledeL'Eclairage, International Commission on Illumination) coordinate in chromatic diagram, it is different that colourity difference is its concrete coordinate in chromatic diagram.Color type then can be understood as the crest of the wavelength of the light directly sent through this sub-pixel or this sub-pixel in certain scope.Such as, the crest of wavelength is that the light of 625 nanometer ~ 740 nanometers is for red; The crest of wavelength is the light of 590 nanometer ~ 625 nanometers is orange; The crest of wavelength is that the light of 565 nanometer ~ 590 nanometers is for yellow; The crest of wavelength is that the light of 500 nanometer ~ 565 nanometers is for green; The crest of wavelength is the light of 485 nanometer ~ 500 nanometers is cyan; The crest of wavelength is that the light of 440 nanometer ~ 485 nanometers is for blue; The crest of wavelength is the light of 380 nanometer ~ 440 nanometers is purple.In sum, the identical colourity difference of the color type i.e. crest of the wavelength of the light of two kinds of colors is in the wavelength coverage of same color, and the coordinate of these concrete two kinds of colors in CIE chromaticity diagram is different.
In some optional implementations, first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel are the one in red sub-pixel, green sub-pixels and blue subpixels, and the color type of the first sub-pixel, the second sub-pixel, the 3rd sub-pixel is different; The color type of the first sub-pixel, the 4th sub-pixel, the 5th sub-pixel is different.Such as, the first sub-pixel can be blue subpixels, represents with B; Second sub-pixel and the 5th sub-pixel for having the green sub-pixels of two kinds of different chromatic values, can represent with G1 and G2 respectively; 3rd sub-pixel and the 4th sub-pixel for having the red sub-pixel of two kinds of different chromatic values, can represent with R1 and R2 respectively.Then the first sub-pixel group can comprise B, G1, R1 sub-pixel, and the second sub-pixel group can comprise B, R2, G2 sub-pixel.
In the display device that the present embodiment provides, viewing area can comprise the pixel groups 10 of multiple arrangement in matrix.Each pixel groups comprises six sub-pixels, and wherein the color type of two sub-pixels is all identical with colourity, and in other four sub-pixels, then comprises the sub-pixel that two groups of identical colourity of color type is different.If display device is LCD, the color blocking comprising different dyes or dye strength can be used to realize the display of different colours type; If display device is OLED, the luminous organic material of different colours can be used to realize the display of different colours type.
Can comprise multiple pixel groups for LCD, LCD, in pixel groups, the sub-pixel of two same color types and colourity can adopt blue color blocking material.In all the other four sub-pixels, two sub-pixels can adopt two kinds of different green color blocking materials respectively, and all the other two sub-pixels can adopt two kinds of different red color resistance materials respectively.The arrangement mode of this pixel groups can promote the color saturation of display device, thus has widened the colour gamut of display device.Be embodied in, in CIE chromaticity diagram, the colour gamut that the display device of existing three primary colours can show, for the triangle area that the coordinate of three colors of these three primary colours can fence up, and the display device of five primary colours that the present embodiment provides, prior art three primary colours chromaticity coordinates can be expanded to five primary colours chromaticity coordinatess, its colour gamut that can show, be the pentagon area that this five primary colours chromaticity coordinates fences up.Be equivalent to carry out area expansion outside the leg-of-mutton area of prior art, thus widened the colour gamut of display device.
With further reference to Fig. 2, it illustrates the floor map of second embodiment of pixel groups arrangement in the application's display device.As shown in Figure 2, display device comprises the pixel groups 20 of multiple arrangement in matrix.Pixel groups 20 can comprise along tactic first sub-pixel 111, second sub-pixel 112 of the first row and the 5th sub-pixel 115; Along tactic 3rd sub-pixel 113 of the second row, the 4th sub-pixel 114 and the first sub-pixel 111.In some embodiments, pixel groups 20 can comprise the first sub-pixel group 21 and the second sub-pixel group 22.Wherein the first sub-pixel group 21 sub-pixel is identical with the arrangement of the sub-pixel in the first sub-pixel group 11 of pixel groups 10 in the display device shown in Fig. 1, comprises along tactic first sub-pixel 111, second sub-pixel 112 of the first row and the 3rd sub-pixel 113 along the second row arrangement.In pixel groups 20, the second sub-pixel group 22 comprises the 5th sub-pixel 115 of the first row arrangement and the 4th sub-pixel 114 and the first sub-pixel 111 along the second row arrangement.Wherein the color type of the first sub-pixel 111, second sub-pixel 112, the 3rd sub-pixel 113 is different, and the color type of the first sub-pixel 111, the 4th sub-pixel 114 and the 5th sub-pixel 115 is different.First sub-pixel 111 can be blue subpixels; Second sub-pixel 112 and the 5th sub-pixel 115 can be two kinds of green sub-pixels that color type is identical, colourity is different; 3rd sub-pixel 113 and the 4th sub-pixel 114 can be two kinds of red sub-pixel that color type is identical, colourity is different.
With further reference to Fig. 3, it illustrates the floor map of the 3rd embodiment of pixel groups arrangement in the application's display device.In the present embodiment, first direction is the vertical direction shown in Fig. 3, namely parallel with the row of pixel groups direction, and second direction is the horizontal direction shown in Fig. 3, namely parallel with the row of pixel groups direction.As shown in Figure 3, display device comprises multiple mutually isostructural pixel groups 30.In pixel groups 30, the first sub-pixel 111, second sub-pixel 112 and the 3rd sub-pixel 113 are in the arrangement of the first row order, and the 5th sub-pixel 115, the 4th sub-pixel 114 and the first sub-pixel 111 are in the second row order arrangement.Pixel groups 30 can comprise the first sub-pixel group 31 and the second sub-pixel group 32 that the line direction along pixel groups arranges.Wherein the first sub-pixel group 31 can comprise the first sub-pixel 111, second sub-pixel 112 and the 3rd sub-pixel 113 that the column direction along pixel groups arranges; Second sub-pixel group 32 can comprise the 5th sub-pixel 115, the 4th sub-pixel 114 and the first sub-pixel 111 that the column direction along pixel groups arranges.Wherein the second sub-pixel 112 is identical with the color type of the 5th sub-pixel 115, and colourity is not identical; 3rd sub-pixel 113 is identical with the color type of the 4th sub-pixel 114, and colourity is not identical.
With further reference to Fig. 4, it illustrates the floor map of the 4th embodiment of pixel groups arrangement in the application's display device.In the present embodiment, first direction is the vertical direction shown in Fig. 4, namely parallel with the row of pixel groups direction, and second direction is the horizontal direction shown in Fig. 4, namely parallel with the row of pixel groups direction.As shown in Figure 4, display device can comprise multiple mutually isostructural pixel groups 40.Pixel groups 40 comprises the first sub-pixel group 41 and the second sub-pixel group 42 that the line direction along pixel groups arranges.First sub-pixel group 41 comprises and comprises along tactic first sub-pixel 111, second sub-pixel 112 of column direction of pixel groups and the 3rd sub-pixel 113, second sub-pixel group 42 the first sub-pixel 111, the 4th sub-pixel 114 and the 5th sub-pixel 115 that the column direction along pixel groups arranges.Wherein, the second sub-pixel 112 is identical with the color type of the 5th sub-pixel 115, and colourity is different; 3rd sub-pixel 113 is identical with the color type of the 4th sub-pixel 114, and colourity is different.
In some embodiments, the first sub-pixel 111, second sub-pixel 112, the 3rd sub-pixel 113, the 4th sub-pixel 114 and the 5th sub-pixel 115 shown in Fig. 4 is the one in red sub-pixel, green sub-pixels and blue subpixels, and the color type of three sub-pixels is different in the first sub-pixel group 41, in the second sub-pixel group 42, the color type of three sub-pixels is different.
With further reference to Fig. 5, it illustrates the floor map of the 5th embodiment of pixel groups arrangement in the application's display device.In the present embodiment, first direction is the horizontal direction shown in Fig. 5, namely parallel with the row of pixel groups direction, and second direction is the horizontal direction shown in Fig. 5, namely parallel with the row of pixel groups direction.As shown in Figure 5, display device can comprise multiple mutually isostructural pixel groups 50.Pixel groups 50 comprises the first sub-pixel group 51 and the second sub-pixel group 52 that the line direction along pixel groups arranges.First sub-pixel group 51 comprises and comprising along tactic first sub-pixel 111 of column direction of pixel groups, the 4th sub-pixel 114 and the 5th sub-pixel 115 along tactic first sub-pixel 111, second sub-pixel 112 of column direction of pixel groups and the 3rd sub-pixel 113, second sub-pixel group 52.Wherein, the second sub-pixel 112 is identical with the color type of the 5th sub-pixel 115, and colourity is different; 3rd sub-pixel 113 is identical with the color type of the 4th sub-pixel 114, and colourity is different.
In some embodiments, the first sub-pixel 111, second sub-pixel 112, the 3rd sub-pixel 113, the 4th sub-pixel 114 and the 5th sub-pixel 115 shown in Fig. 5 is the one in red sub-pixel, green sub-pixels and blue subpixels, and the color type of three sub-pixels is different in the first sub-pixel group 51, in the second sub-pixel group 52, the color type of three sub-pixels is different.
In the embodiment that above composition graphs 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 describe, alternatively, first sub-pixel 111, second sub-pixel 112, the 3rd sub-pixel 113, the 4th sub-pixel 114 and the 5th sub-pixel 115 are for having the rectangle sub-pixel of equal length and same widths, and the length of each sub-pixel and the ratio of width are 3:1.
In other optional embodiments, the first sub-pixel 111, second sub-pixel 112, the 3rd sub-pixel 113, the 4th sub-pixel 114 and the 5th sub-pixel 115 can be area rectangle sub-pixel not etc.
If display device is OLED display screen, then the second sub-pixel 112 and the 5th sub-pixel 115 can comprise the different luminous organic materials of same color type, and the 3 113 sub-pixel and the 4th sub-pixel 114 can comprise the different luminous organic materials of same color type.
If display device is LCD, in some embodiments, the 3rd sub-pixel 113 can comprise the identical dyestuff of variable concentrations with the color blocking of the 4th sub-pixel 114.Second sub-pixel 112 can comprise the identical dyestuff of variable concentrations with the color blocking of the 5th sub-pixel 115.Alternatively, the color blocking dye strength of the 3rd sub-pixel 113 is higher than the color blocking dye strength of the 4th sub-pixel 114, and the color blocking dye strength of the second sub-pixel 111 is higher than the color blocking dye strength of the 5th sub-pixel 115.
In other embodiments of LCD, the color blocking of the 3rd sub-pixel 113 and the 4th sub-pixel 114 comprises the different dyes of same color type.The color blocking of the second sub-pixel 112 and the 5th sub-pixel 115 comprises the different dyes of same color type.
Alternatively, the first sub-pixel 111 is blue subpixels, and the second sub-pixel 112 is the first green sub-pixels, and the 5th sub-pixel 115 is the second green sub-pixels, and the 3rd sub-pixel 113 is the first red sub-pixel, the 4th sub-pixel 114 is the second red sub-pixel.Particularly, in CIE 1931 (CIE1931) chromaticity coordinate, the coordinate (x, y) of blue subpixels B, the first green sub-pixels G1, the second green sub-pixels G2, the first red sub-pixel R1, the second red sub-pixel R2 can such as shown in table one.
Table one
In actual applications, adopt color blocking material as shown in Table 1, collocation LED or OLED display screen, penetrance can be promoted while lifting color saturation, namely can widen the colour gamut of display device simultaneously and promote penetrance, solving the problem that in existing design, high colour gamut display screen penetrance is low.
It should be noted that, the chromaticity coordinate of the color blocking material of the sub-pixel that the application provides is not limited to the coordinate figure that table one provides, and also comprises other color blocking materials.In some optional embodiments, the color blocking material of the different chromaticity coordinate value of many groups can be chosen, come color saturation and the penetrance of test display apparatus by experiment, and choose the highest and color blocking material that penetrance is the highest of color saturation as color blocking material corresponding to each sub-pixel.
In certain embodiments, the first sub-pixel, the second sub-pixel, the 3rd sub-pixel, meet following relation between the 4th sub-pixel and the length of the 5th sub-pixel: (L
1× T
1): (L
2× T
2+ L
4× T
4) and (L
1× T
1): (L
3× T
3+ L
5× T
5) proportional relation; Wherein, L
1, L
2, L
3, L
4and L
5be respectively the length of the first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel, T
1, T
2, T
3, T
4and T
5be respectively the color blocking transmitance of the first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel.Alternatively, aforementioned proportion relation can for such as formula the proportionate relationship shown in (1):
Wherein, K>0.
After determining the color blocking material that in display device, each sub-pixel adopts, determine the length of each sub-pixel according to formula (1); Also when determining each sub-pixel length, the color blocking material meeting aforementioned proportion relation can be chosen, thus promote the penetrance of display device while widening colour gamut.
When driving above-mentioned display device, need to play up the sub-pixel in display device, with the brightness value of each sub-pixel in the viewing area determining display device.Present invention also provides sub-pixel rendering intent, for playing up the sub-pixel in the display device as described in above-described embodiment.
Please refer to Fig. 6, it illustrates the process flow diagram of an embodiment of the application's sub-pixel rendering intent.
As shown in Figure 6, in step 601, the source pixel matrix of the three primary colors pel array of input is obtained.
Wherein, source pixel matrix comprises the source pixel group of the arrangement in matrix, and source pixel group comprises three primary colors sub-pixel.Particularly, source pixel group can comprise the red sub-pixel, a green sub-pixels and the blue subpixels that arrange along a certain direction (the data line direction of such as display device or scan-line direction) determined.Wherein the arrangement of red sub-pixel, green sub-pixels and blue subpixels can be arbitrary, and the application does not limit putting in order of three primary colors sub-pixel in source pixel group.
Please refer to Fig. 7, it illustrates a structural representation of the preimage prime matrix of three primary colors pel array.As shown in Figure 7, the source pixel matrix of three primary colors pel array comprises the source pixel group 71 of multiple arrangement in matrix, and source pixel group 71 comprises red sub-pixel 711, green sub-pixels 712 and blue subpixels 713.In existing display device, display device comprises multiple source pixel group as shown in Figure 7.When showing image, providing driving voltage by driving circuit for each sub-pixel, making each sub-pixel show corresponding brightness.A pixel in each source pixel group correspondence image.In source pixel group, the brightness of three primary colors sub-pixel is the brightness of corresponding pixel points on image after synthesizing.
Return Fig. 6, in step 602, based on source pixel matrix, from display device, determine display unit.
In the present embodiment, the display device of display device described by above-mentioned composition graphs 1 to Fig. 5, comprises multiple pixel groups.Pixel groups can comprise the first sub-pixel group and the second sub-pixel group.First sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel; Second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel.Wherein, the second sub-pixel is identical with the 5th sub-pixel colors type, and colourity is different; 3rd sub-pixel is identical with the 4th sub-pixel colors type, and colourity is different.
Source pixel matrix comprises three primary colors sub-pixel, and when correspondence display image, a three primary colors sub-pixel group, as a display unit, shows a pixel of image.The brightness center of source pixel matrix is generally the center of three primary colors sub-pixel group.Such as when arranging the sub-pixel in source pixel matrix with red, green, blue order, the brightness center of source pixel matrix can be positioned at the center of green sub-pixels.
In the present embodiment, the display unit in the display device that the application provides can be determined according to source pixel matrix.Alternatively, the three primary colors sub-pixel group one_to_one corresponding of determined display unit and source pixel matrix, namely with the display unit one_to_one corresponding in three primary colors pel array, to realize the resolution same with three primary colors pel array and same display effect.Particularly, for the display device that the application provides, display unit comprises a first sub-pixel group and a second sub-pixel group.Each sub-pixel group is shared by the display unit of two on data line direction.
With further reference to Fig. 8, it illustrates the corresponding relation schematic diagram of display unit in the display device shown in source pixel matrix and Fig. 4 in three primary colors pel array.
As shown in Figure 8, three primary colors pel array 1 comprises multiple source pixel matrix 80, and source pixel matrix 80 comprises three source pixel groups 81,82 and 83.Each source pixel group comprises a red sub-pixel, a green sub-pixels and a blue subpixels.The source pixel matrix be made up of source pixel group 81,82 and 83 can be represented with formula (2):
Wherein, X
i, Y
i, Z
ibe respectively a kind of brightness value in source pixel matrix in red sub-pixel, green sub-pixels and blue subpixels, and X
i, Y
i, Z
ithe color of representative sub-pixel is different, i be greater than 1 integer.
The brightness center of each source pixel group (i.e. human eye experience the center of pixel) is at the center position being positioned at middle sub-pixel.In order to show the image of equal resolution with three primary colors pel array and reach the display effect same with three primary colors pel array, in the display device that the application provides, brightness center needs and the brightness center one_to_one corresponding in three primary colors pel array.The display device that the application provides can comprise multiple display unit, and a brightness center of the corresponding three primary colors pel array in brightness center of each display unit, this brightness center is the geometric center of display unit.In fig. 8, the display unit 84,85,86 in the display device 2 that provides of the application respectively with the source pixel group 81 in three primary colors pel array 1,82,83 corresponding.The brightness center of the source pixel group 81,82,83 in three primary colors pel array 1 to be respectively shown in figure 810,820 and 830.In the display device 2 that the application provides, the brightness center of display unit 84,85,86 to be respectively shown in figure 840,850 and 860.As can be seen from Figure 8, brightness center 81 is corresponding with 84, and 82 is corresponding with 85, and 83 is corresponding with 86.By the brightness value of image to be displayed is carried out data conversion, the display device that the application provides can show the image of equal resolution with three primary colors pel array.
As can be seen from Figure 8, in the display device 2 that the application provides, each display unit comprises a first sub-pixel group and a second sub-pixel group.First sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel; Second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel.Second sub-pixel can be identical with the 5th sub-pixel colors type, and colourity is different; 3rd sub-pixel can be identical with the 4th sub-pixel colors type, and colourity is different.By the setting of above-mentioned display unit, each display unit can be made to have the base color of five different colourities, make each display unit can carry out high colour gamut display.
Above composition graphs 8 describes a kind of example implementations determining display unit based on source pixel matrix from the display device that the application provides.Be appreciated that in some embodiments, can also determine the display unit different from shown in Fig. 8, such as, each display unit can comprise more than six or six sub-pixels.Do not repeat them here.
After determining display unit, in step 603, based on the brightness value of three primary colors sub-pixel each in source pixel group, the brightness of each sub-pixel in display unit is determined.
In the present embodiment, according to the brightness value of red sub-pixel, green sub-pixels and blue subpixels in the source pixel group corresponding to a pixel on image, the brightness value of display unit sub-pixel can be calculated.Namely the brightness value of three primary colors sub-pixel in the source pixel group of input can be converted to the brightness value of each sub-pixel in the display device that the application provides.
In certain embodiments, can by the brightness value of the sub-pixel determining corresponding color in display unit of suing for peace in proportion to the three primary colors sub-pixel of same color in source pixel matrix.
Below for the display unit shown in Fig. 8, illustrate the computing method of each sub-pixel luminance values in display unit.
As mentioned above, the brightness value of three primary colors sub-pixel in the source pixel group of input can be converted to the brightness value of each sub-pixel in the display device that the application provides.As shown in Figure 8, three primary colors pel array comprises the source pixel matrix 80 of the arrangement in matrix, and source pixel matrix 80 comprises source pixel group 81,82 and 83.Source pixel group 81 comprises three sub-pixels 811,812 and 813, and pixel groups 82 comprises three sub-pixels 821,822 and 823, and pixel groups 83 comprises three sub-pixels 831,832 and 833.
Display unit 85 comprises the first sub-pixel group and the second sub-pixel group.Wherein the first sub-pixel group comprises the first sub-pixel 851, second sub-pixel 852 and the 3rd sub-pixel 853, second sub-pixel group comprises the first sub-pixel 854, the 4th sub-pixel 855 and the 5th sub-pixel 856.As can be seen from Figure 8, display unit 84 shares three sub-pixels 851,852 and 853 with display unit 85, and display unit 86 shares three sub-pixels 854,855 and 856 with display unit 85.It can thus be appreciated that each sub-pixel is all shared by two display units in the viewing area of display device 2.When showing image, the brightness value of each sub-pixel is assigned to two display units.
Sub-pixel 851 in display unit 85 is shown unit 84 and 85 and shares, and the source pixel group in the three primary colors pel array of display unit 84 and 85 correspondence is respectively 81 and 82.Then when calculating the brightness value of sub-pixel 851, can sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 851 same color in source pixel group 81 and 82.In like manner, when calculating the brightness value of sub-pixel 852, need to sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 852 same color in source pixel group 81 and 82 respectively; When calculating the brightness value of sub-pixel 853, need to sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 853 same color in source pixel group 81 and 82 respectively.
Sub-pixel 854 in display unit 85 is shown unit 85 and 86 and shares, and the source pixel group in the three primary colors pel array of display unit 85 and 86 correspondence is respectively 82 and 83.Then when calculating the brightness value of sub-pixel 854, can sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 854 same color in source pixel group 82 and 83.In like manner, when calculating the brightness value of sub-pixel 855, need to sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 855 same color in source pixel group 82 and 83 respectively; When calculating the brightness value of sub-pixel 856, need to sue for peace in proportion with the brightness value of the sub-pixel of sub-pixel 856 same color in source pixel group 82 and 83 respectively.
Particularly, suppose that sub-pixel 811,821,831 is identical with the 3rd sub-pixel 853 of the first sub-pixel group in display unit 85 and the 4th sub-pixel 855 color type of the second sub-pixel group; The 5th sub-pixel 856 color type in second sub-pixel 852 of sub-pixel 812,822,832 and the first sub-pixel group in display unit 85 and the second sub-pixel group is identical; Sub-pixel 813,823,833 is identical with the first sub-pixel 851 of the first sub-pixel group in display unit 85 and the first sub-pixel 854 color type of the second sub-pixel group.In above-mentioned formula (2), Z
ifor in source pixel matrix with the brightness value of the sub-pixel of the first sub-pixel same color, Y
ifor in source pixel matrix with the brightness value of the sub-pixel of the second sub-pixel same color, X
ifor in source pixel matrix with the brightness value of the sub-pixel of the 3rd sub-pixel same color, i be greater than 1 integer.
Particularly, X
i-1, X
i, X
i+1be respectively the brightness value of sub-pixel 811,821,831, Y
i-1, Y
i, Y
i+1be respectively the brightness value of sub-pixel 812,822,832, Z
i-1, Z
i, Z
i+1be respectively the brightness value of sub-pixel 813,823,833, then, in display unit 85, the brightness value of the first sub-pixel 851 in the first sub-pixel group is
p
1＝α*(Z
i-1+Z
i)；(3)
The brightness value of the second sub-pixel 852 in the first sub-pixel group is
p
3＝β*(Y
i-1+Y
i)；(4)
The brightness value of the 3rd sub-pixel 853 in the first sub-pixel group is
p
5＝γ*(X
i-1+X
i)；(5)
The brightness value of the first sub-pixel 854 in the second sub-pixel group is
p
2＝α*(Z
i+Z
i+1)；(6)
The brightness value of the 4th sub-pixel 855 in the second sub-pixel group is
p
6＝λ*(X
i+X
i+1)；(7)
The brightness value of the 5th sub-pixel 856 in the second sub-pixel group is
p
4＝η*(Y
i+Y
i+1)；(8)
Wherein, α, β, γ, η, λ are data conversion coefficient, and span is 0 ~ 1, in the present embodiment, α, β, γ, η, λ all get 0.5, but in other embodiments, can determine according to actual conditions, can not using the numerical value in the present embodiment as limitation of the invention.
The brightness value of each sub-pixel in display unit 85 can be calculated according to above formula (3) ~ (7).Afterwards, brightness value can be converted to gray level information, and apply corresponding driving voltage to each sub-pixel, display device can be driven to show the image of input.
It should be noted that, in the present embodiment, be described for six sub-pixels of the display unit of brightness center 850 correspondence of the second row first row.In actual computation process, when the brightness center chosen be last column or the first row time, there will be and correspond to non-existent pixel in three primary colors pel array, now, this non-existent pixel is directly designated as brightness value and equals zero.
Be described for the display unit that the brightness center being positioned at the first row first row is corresponding:
The brightness value of the first sub-pixel in the first sub-pixel group is:
p
1＝α*(Z
0+Z
1)；(9)
Now, due to Z
0do not exist, be therefore directly designated as zero, namely obtain:
p
1＝α*Z
1；(10)
Correspondingly, the brightness value of other sub-pixels can be obtained.
The brightness value of the second sub-pixel in the first sub-pixel group is:
p
3＝β*(Y
0+Y
1)＝β*Y
1；(11)
The brightness value of the 3rd sub-pixel in the first sub-pixel group is:
p
5＝γ*(X
0+X
1)＝γ*X
1；(12)
The brightness value of the first sub-pixel in the second sub-pixel group is
p
2＝α*(X
1+X
2)；(13)
The brightness value of the 4th sub-pixel in the second sub-pixel group is
p
6＝λ*(X
1+X
2)；(14)
The brightness value of the 5th sub-pixel in the second sub-pixel group is
p
3＝η*(Y
1+Y
2)；(15)
It should be noted that, except comprising the pixel groups described by above embodiment, the display device that the application provides can also comprise multi-strip scanning line and insulate crossing a plurality of data lines with sweep trace.Data line can along the length direction order arrangement of each sub-pixel, and sweep trace can along the Width order arrangement of each sub-pixel.Apply corresponding voltage by data line to each sub-pixel in display device, and control each sweep trace of conducting line by line, just can realize lining by line scan and showing of image.
In addition, display device can also comprise drive IC, for driving the sub-pixel display image of viewing area.Sub-pixel rendering intent described above can perform in drive IC, after the gray level information of input picture, first image gray-scale level information can be converted to the brightness value of each sub-pixel in three primary colors pel array by drive IC, via the data conversion unit in drive IC the brightness value of sub-pixel each in three primary colors pel array is converted to the brightness value of each sub-pixel in the display device that the application provides again, determine the gray level information of each sub-pixel afterwards according to brightness value, and determine the magnitude of voltage to sub-pixel applying based on gray level information.
The sub-pixel rendering intent that the above embodiments of the present application provide, by doing data conversion to the three primary colors pel array of input, can while the colour gamut promoting display device and penetrance, ensure that display device can the image of display of high resolution, solve in prior art, the problem that the display device penetrance of high resolving power and high colour gamut is low.
More than describe and be only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art are to be understood that, invention scope involved in the application, be not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should be encompassed in when not departing from described inventive concept, other technical scheme of being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme formed.
Claims (12)
1. a display device, comprises multiple pixel groups, it is characterized in that, described pixel groups comprises the first sub-pixel group and the second sub-pixel group;
Described first sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel;
Described second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel;
Wherein, described second sub-pixel is identical with described 5th sub-pixel colors type, and colourity is different; Described 3rd sub-pixel is identical with described 4th sub-pixel colors type, and colourity is different.
2. display device according to claim 1, is characterized in that, described first sub-pixel group and the second sub-pixel group arrange along first direction;
The order arrangement in a second direction of the first sub-pixel in described first pixel groups, the second sub-pixel and the 3rd sub-pixel;
The order arrangement in a second direction of the first sub-pixel in described second sub-pixel group, the 4th sub-pixel and the 5th sub-pixel;
Wherein said first direction is perpendicular to described second direction.
3. display device according to claim 1, is characterized in that, described first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel are the one in red sub-pixel, green sub-pixels and blue subpixels; And the color type of described first sub-pixel, the second sub-pixel, the 3rd sub-pixel is different, the color type of described first sub-pixel, the 4th sub-pixel, the 5th sub-pixel is different.
4. display device according to claim 3, it is characterized in that, described first sub-pixel is blue subpixels, and the second sub-pixel is the first green sub-pixels, 5th sub-pixel is the second green sub-pixels, and the 3rd sub-pixel is the first red sub-pixel, the 4th sub-pixel is the second red sub-pixel.
5. display device according to claim 3, it is characterized in that, described first sub-pixel is blue subpixels, and the second sub-pixel is the first red sub-pixel, 5th sub-pixel is the second red sub-pixel, and the 3rd sub-pixel is the first green sub-pixels, the 4th sub-pixel is the second green sub-pixels.
6. display device according to any one of claim 1 to 5, it is characterized in that, described first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel are the rectangle sub-pixel with equal length and same widths, and the ratio of described length and width is 3:1.
7. display device according to any one of claim 1 to 5, is characterized in that, described first sub-pixel, the second sub-pixel, the 3rd sub-pixel, meets following relation between the 4th sub-pixel and the length of the 5th sub-pixel:
(L
1× T
1): (L
2× T
2+ L
4× T
4) and (L
1× T
1): (L
3× T
3+ L
5× T
5) proportional relation;
Wherein, L
1, L
2, L
3, L
4and L
5be respectively the length of described first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel, T
1, T
2, T
3, T
4and T
5be respectively the color blocking transmitance of described first sub-pixel, the second sub-pixel, the 3rd sub-pixel, the 4th sub-pixel and the 5th sub-pixel.
8. display device according to claim 7, described 3rd sub-pixel comprises the identical dyestuff of variable concentrations with the color blocking of described 4th sub-pixel; Described second sub-pixel comprises the identical dyestuff of variable concentrations with the color blocking of described 5th sub-pixel.
9. display device according to claim 7, is characterized in that, the color blocking of described 3rd sub-pixel and described 4th sub-pixel comprises the different dyes of same color type; The color blocking of described second sub-pixel and described 5th sub-pixel comprises the different dyes of same color type.
10. a sub pixel rendering intent, is characterized in that, comprising:
Obtain the source pixel matrix of the three primary colors pel array of input, described source pixel matrix comprises the source pixel group of the arrangement in matrix, and described source pixel group comprises three primary colors sub-pixel;
Based on described source pixel matrix, from display device as claimed in claim 1, determine display unit;
Based on the brightness value of three primary colors sub-pixel each in described source pixel group, determine the brightness of each sub-pixel in described display unit;
Wherein, described display unit comprises a first sub-pixel group and a second sub-pixel group; Described first sub-pixel group comprises the first sub-pixel, the second sub-pixel and the 3rd sub-pixel; Described second sub-pixel group comprises the first sub-pixel, the 4th sub-pixel and the 5th sub-pixel; Described second sub-pixel is identical with described 5th sub-pixel colors type, and colourity is different; Described 3rd sub-pixel is identical with described 4th sub-pixel colors type, and colourity is different.
11. methods according to claim 10, is characterized in that, the described brightness value based on three primary colors sub-pixel each in described source pixel matrix determines the brightness of each sub-pixel in display unit, comprising:
By suing for peace in proportion to the three primary colors sub-pixel of same color in described source pixel matrix, determine the brightness value of the sub-pixel of corresponding color in described display unit.
12. methods according to claim 11, is characterized in that, described source pixel matrix is:
Describedly determine that the brightness value of each sub-pixel in corresponding display unit comprises:
The brightness value of the first sub-pixel of described first sub-pixel group is
p
1＝α*(Z
i-1+Z
i)；
The brightness value of the first sub-pixel of described second sub-pixel group is
p
2＝α*(Z
i+Z
i+1)；
The brightness value of described second sub-pixel is
p
3＝β*(Y
i-1+Y
i)；
The brightness value of described 5th sub-pixel is
p
4＝η*(Y
i+Y
i+1)；
The brightness value of described 3rd sub-pixel is
p
5＝γ*(X
i-1+X
i)；
The brightness value of described 4th sub-pixel is
p
6＝λ*(X
i+X
i+1)；
Wherein, the span of α, β, γ, η, λ is 0 ~ 1; I be greater than 1 integer;
Z
ifor in described source pixel matrix with the brightness value of the sub-pixel of described first sub-pixel same color, Y
ifor in described source pixel matrix with the brightness value of the sub-pixel of described second sub-pixel same color, X
ifor in described source pixel matrix with the brightness value of the sub-pixel of described 3rd sub-pixel same color.
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