TWI567704B - 3d/2d multiprimary color image device and method for controlling the same - Google Patents

Description

3D/2D multi-primary image device and control method thereof [Cross-Reference to Related Applications]

The present patent application is a continuation-in-part of U.S. Patent Application Serial No. 12/852,062, filed on Aug. 6, 2010, the content of which is hereby incorporated by reference.

The present invention relates to an image device, and more particularly to a 3D/2D multi-primary image device capable of displaying a three-dimensional (3D) image, a two-dimensional (2D) image, and a mixed 2D/3D image, and Control Method.

A display device capable of displaying 3D images has been developed. The 3D image display system that has been studied so far can be classified into a type that uses glasses and a type that does not have glasses. Wearing glasses may have a negative impact on the user viewing 3D content. A glasses-free 3D image display device that is easier for a user to use includes an optical unit (such as a parallax barrier, a lenticular lens, or a second LCD) for guiding two slightly different images to direct one image to the left. Eyes and direct another image to the right eye for forming a 3D image.

Recently, active research has been conducted to enable 3D image display devices to display 2D images. The conventional method is that the previously mentioned images for the left eye and for the right eye match each other and display the same image. Referring to Figure 1, a conventional 3D display device is shown. The conventional 3D display device 10 includes a plurality of RGB pixel groups 11 for the left eye and a plurality of RGB pixel groups for the right eye. 12. For example, the RGB pixel group 11 includes one red dot (R1) 111, one green dot (G1) 112, and one blue dot (B1) 113 for the left eye, and the RGB pixel group 12 includes one for the right eye. Red dot (R2) 121, a green dot (G2) 122, and a blue dot (B2) 123. In this case, the same information should be displayed on both pixels, thus reducing the resolution to half.

U.S. Patent 7,705,844 teaches a method of arranging two RGB pixels in a square rather than a 1 RGB stripe pixel such that a double density is obtained in the horizontal direction, thus compensating for the loss of resolution due to the division of the left and right images. The disadvantage is that the number of gate lines is increased by three, thus significantly reducing the pixel clock, and the TFT LCD pixels do not have enough time to fully charge, especially for amorphous LCD displays.

U.S. Patent No. 7,050,020 teaches a method that uses two lenticular lenses to maintain full resolution in the 2D display mode during one half of shifting a lenticular lens to the lens pitch against another lenticular lens. In addition to higher cost and ease of wear and tear, there is still the problem of complex construction of displays with moving lenticular lenses.

U.S. Patent No. 8,466,954 teaches a display that alternately presents images from at least two video inputs, and a sync and shadow filtering device is used to allow viewing only one of the images from the video input. It is a time-sharing arrangement that allows multiple viewers to view different images in the same display. The disadvantage is that the picture update rate is reduced, so the visual quality of the display is reduced.

The invention provides an image device. The imaging device includes a plurality of pixel groups. Each pixel group includes a plurality of dots arranged in a predetermined same matrix, and each pixel group has at least one first color point, at least one second color point, at least one third color point, and at least one fourth color point. . The first color point includes at least two first color segments independently controlled, the second color dot comprising at least two second color segments independently controlled, the third color dot comprising at least two third independently controlled a color segment, and the fourth color point includes at least two fourth color segments that are independently controlled. Which is in a column direction or a row direction, relative to the viewer, according to An orientation of the image display, wherein one of the at least two first color segments in each pixel group is directly located in the other of the at least two first color segments and in one of the at least two third color segments For the first group of viewers, the data of one of the at least two color segments input to each color point is a multi-primary color signal, and for the second group of viewers, at least two colors input to each color point The other data of the segment is a multi-primary signal.

The present invention provides a method for controlling the above image device. The method of the present invention comprises the steps of: (a) first sub-pixel rendering and color space conversion for a 3D input data for a first image in a first color space, and outputting for use in a second color space a plurality of primary color segment signals of the first image; and (b) a second sub-pixel representation and color space conversion for the 3D input data for a second image in the first color space, and outputting the second a plurality of primary color segment signals for the second image in the color space.

An object of the present invention is to provide a thin, simple and low-cost 3D image/2D image display device which ensures display of 3D images, display of 2D images and hybrid 2D/3D images at full resolution and high brightness. Seamless switching between displays.

Another object of the present invention is to provide a multi-primary image device (such as RGBW) that uses a single color virtual pixel to represent a full RGB color pixel by sub-pixel rendering and color space conversion.

One of the objects of the present invention is to simultaneously display a plurality of images to a plurality of groups of viewers.

10‧‧‧Knowledge 3D display device

11‧‧‧RGB pixel group

12‧‧‧RGB pixel group

20‧‧‧Video device

21‧‧‧First color point

22‧‧‧second color point

23‧‧‧ Third color point

24‧‧‧ fourth color point

30‧‧‧Video device

31‧‧‧ first color point

32‧‧‧second color point

33‧‧‧ Third color point

34‧‧‧ fourth color point

40‧‧‧Video device

41‧‧‧First color point

42‧‧‧second color point

43‧‧‧ Third color point

44‧‧‧ fourth color point

60‧‧‧Image installation

61‧‧‧First color point

62‧‧‧second color point

63‧‧‧ Third color point

64‧‧‧ fourth color point

65‧‧‧First color point

66‧‧‧second color point

67‧‧‧ Third color point

68‧‧‧ fourth color point

111‧‧‧Red Dot (R1)

112‧‧‧Green Point (G1)

113‧‧‧Blue Point (B1)

121‧‧‧Red Dot (R2)

122‧‧‧Green Point (G2)

123‧‧‧Blue Point (B2)

211‧‧‧First color section

212‧‧‧First color section

221‧‧‧Second color section

222‧‧‧Second color section

231‧‧‧ Third color section

232‧‧‧third color section

241‧‧‧The fourth color section

242‧‧‧The fourth color section

311‧‧‧First color section

312‧‧‧First color section

321‧‧‧Second color section

322‧‧‧Second color section

331‧‧‧The third color section

332‧‧‧ third color section

341‧‧‧The fourth color section

342‧‧‧The fourth color section

411‧‧‧First color section

412‧‧‧First color section

421‧‧‧Second color section

422‧‧‧Second color section

431‧‧‧The third color section

432‧‧‧ third color section

441‧‧‧fourth color section

442‧‧‧fourth color section

611‧‧‧First color section

612‧‧‧First color section

621‧‧‧Second color section

622‧‧‧Second color section

631‧‧‧The third color section

632‧‧‧The third color section

641‧‧‧The fourth color section

642‧‧‧The fourth color section

651‧‧‧First color section

652‧‧‧First color section

661‧‧‧Second color section

662‧‧‧Second color section

671‧‧‧The third color section

672‧‧‧The third color section

681‧‧‧The fourth color section

682‧‧‧The fourth color section

1 shows a conventional 3D display device; FIG. 2 shows an image device according to a first embodiment of the present invention; FIGS. 3A and 3B show a segment of a color point for displaying a first image according to a first embodiment of the present invention. Image, while another segment of the same color point is used to display a second image; FIG. 4 shows an image device according to a second embodiment of the present invention; FIGS. 5A and 5B show a color point according to a second embodiment of the present invention One segment is for displaying a first image, and another segment of the same color point is for displaying a second image; 6 shows an image device according to a third embodiment of the present invention; FIGS. 7A and 7B show a segment of a color point for displaying a first image and another for the same color point according to a third embodiment of the present invention. The section is for displaying a second image; FIG. 8 is a block diagram for explaining a method for controlling an image device according to the present invention; FIG. 9 is a view showing an RGBW image device according to the first embodiment of the present invention; 10B shows a section of a color point for displaying a first image and another section of the same color point for displaying a second image according to the first embodiment of the present invention; FIG. 11 shows a first image according to the present invention. The RGBW image device of the second embodiment; FIG. 12A and FIG. 12B show one segment of a color point for displaying a first image, and another segment of the same color point for displaying a first image according to the second embodiment of the present invention. FIG. 13 shows an RGB image device according to a third embodiment of the present invention; FIGS. 14A and 14B show a segment of a color point for displaying a first image, and the same color, according to a third embodiment of the present invention. Another section of the point is used to display a second image And FIG. 15 shows an image device according to a fourth embodiment of the present invention.

Other advantageous measures are described in the accompanying claims. The invention is shown in the accompanying drawings and described in more detail below.

Referring to Figure 2, there is shown an image device in accordance with a first embodiment of the present invention. The imaging device 20 includes a plurality of pixel groups. Each pixel group includes a plurality of dots 21, 22, 23, 24 arranged in a predetermined same matrix, and each pixel group has at least one first color point 21, at least one second color point 22, at least a third a color point 23 and at least a fourth color point 24. The first color point 21 includes at least two first color segments 211 (A1), 212 (A2) independently controlled, and the second color point 22 includes at least two second color segments 221 (B1) independently controlled. 222 (B2), the third color point 23 includes at least two third color segments 231 (C1), 232 (C2) independently controlled, and the fourth color point 24 includes at least two independent controls. Four color segments 241 (D1), 242 (D2).

The image device 20 can display 3D images, 2D images, and mixed 2D/3D images. The imaging device 20 can further include an optical unit disposed at one side of the imaging device and having view separating elements arranged in a plurality of columns and rows in a first direction. The optical unit used in the present invention may be, but not limited to, a liquid crystal shutter, a lenticular lens, or a parallax barrier.

3A and 3B show a segment of a color point for displaying a first image, and another segment of the same color point for displaying a second image, in accordance with a first embodiment of the present invention. In FIG. 3A, one of the color points 21, 22, 23, 24 segments 211 (A1), 221 (B1), 231 (C1), 241 (D1) is used to display the first image. In FIG. 3B, another section 212 (A2), 222 (B2), 232 (C2), 242 (D2) of the same color point 21, 22, 23, 24 is used to display the second image. In this embodiment, the data input to one of the color points 21, 22, 23, 24 of sections 211 (A1), 221 (B1), 231 (C1), 241 (D1) is for a group of viewers. Multiple primary color segment signals, and the data input to the other segments 212 (A2), 222 (B2), 232 (C2), 242 (D2) of the color points 21, 22, 23, 24 is for another group The primary color segment signal of the viewer.

Referring again to FIGS. 3A and 3B, the first image and the second image may be from any video content, multimedia stream, computer output, game output, electronic device, or any known video image device. Furthermore, the first image and the second image may be two-dimensional and/or three-dimensional.

Figure 8 shows a block diagram for explaining a method for controlling an image device in accordance with the present invention. Referring to FIG. 2, FIG. 3A, FIG. 3B and FIG. 8, the image device 20 further includes a first sub-pixel display and color space conversion device for receiving input data for a first image in the first color space. And outputting a plurality of primary color segment signals for the first image in the second color space (FIG. 3A), and further comprising a second sub-pixel rendering and color space conversion device for receiving the first color space The input data for a second image is output and the multi-primary segment signal for the second image is output in the second color space (FIG. 3B). For example, the first color space is an RGB color space, and the second color space is ABCD color space (Figure 2).

In this embodiment, each color point represents the brightness and chrominance of a corresponding full-color pixel data by grouping with adjacent points to form a plurality of overlapping full-color dynamic pixel groups. That is, a multi-primary image device (such as RGBW) that represents a full RGB color pixel by means of sub-pixel rendering and color space conversion using a single color virtual pixel. Compared with FIG. 1 and FIG. 2, for example, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the video device 20 of the present invention is 1920×2×1080. For 3D images, the resolution of a conventional RGB 3D display device for the first image is 960×3×1080, and the resolution of the conventional RGB 3D display device for the second image is 960×3×1080. The resolution of the image device 20 of the present invention is 1920 × 1 × 1080. For 2D video, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the video device 20 of the present invention is 1920×2×1080. Therefore, the image device 20 of the present invention can display a 2D image having an extra one-color depth by using two segments of the same color point. The image device 20 of the present invention can provide a thin, simple and low-cost 3D image/2D image display device, which ensures the display of 3D images, the display of 2D images and the mixing of 2D/3D images at full resolution and high brightness. Seamless switching between displays.

2 illustrates an observer of the first orientation of the imaging device 20 relative to the imaging device. Referring to FIG. 2, at least two first color segments 211, 212 are arranged in a first direction of the image device 20, at least two second color segments 221, 222 are arranged in a first direction, and at least arranged in a first direction. Two third color segments 231, 232 align at least two fourth color segments 241, 242 in a first direction. As shown in FIG. 2, the first direction is a horizontal direction (column direction), and at least two of the first color segments in the column direction, one of the color segments 212 is directly located in at least two of the first color segments A color segment 211 and between one of the at least two third color segments. On the other hand, if the image display 20 is rotated 90 degrees from the first orientation (shown in Figure 2), approximately one axis is perpendicular to the face of the image display 20, the image device 20 will be in the second orientation relative to the viewer. In the shadow At least two first color segments 211, 212 of the display 20 are arranged in a second direction, at least two second color segments 221, 222 are arranged in the second direction, and at least two third color segments 231 are arranged. And 232 are arranged in the second direction, and at least two fourth color segments 241, 242 are arranged in the second direction. The second direction is a vertical direction (row direction), and at least two of the first color segments in the row direction are directly located in the other color segment 211 of the at least two first color segments and Between one of the at least two third color segments, between the color segments 231.

Referring again to FIG. 2, in the white balance state, the second color point 22 and the third color point 23 have lower light intensities than the first color point 21 and the fourth color point 24, the first color point 21 and the fourth color point. 24 is disposed at a diagonal position of a predetermined same matrix of pixel groups. Referring to FIG. 9, FIG. 10A and FIG. 10B, in this embodiment, the first color point 21 is a green dot, the second color point 22 is a blue dot, the third color point 23 is a red dot, and the fourth color point 24 is White dot. Further, the first color point 21, the second color point 22, the third color point 23, and the fourth color point 24 have a square shape.

Referring to Figure 4, there is shown an image device in accordance with a second embodiment of the present invention. The imaging device 30 includes a plurality of pixel groups. Each pixel group includes a plurality of dots 31, 32, 33, 34 arranged in a predetermined same matrix, and each pixel group has at least one first color point 31, at least one second color point 32, at least a third A color point 33 and at least a fourth color point 34. The first color point 31 includes at least two first color segments 311 (A1), 312 (A2) independently controlled, and the second color point 32 includes at least two second color segments 321 (B1) independently controlled. 322 (B2), the third color point 33 includes at least two third color segments 331 (C1), 332 (C2) independently controlled, and the fourth color point 34 includes at least two fourth independently controlled Color segments 341 (D1), 342 (D2).

5A and 5B show a segment of a color point for displaying a first image, and another segment of the same color point for displaying a second image, in accordance with a second embodiment of the present invention. In FIG. 5A, one of the color points 31, 32, 33, 34 segments 311 (A1), 321 (B1), 331 (C1), 341 (D1) is used to display the first image. In Figure 5B, the same color point 31, 32, 33, 34 Another section 312 (A2), 322 (B2), 332 (C2), 342 (D2) is used to display the second image.

Referring again to Figures 5A and 5B, the first image and the second image may be from any video content, multimedia stream, computer output, game output, electronic device, or any known video image device. Furthermore, the first image and the second image may be two-dimensional and/or three-dimensional.

Compared with FIG. 1 and FIG. 4, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the image device 30 of the present invention is 2880×2×1080. Therefore, in order to adopt a multi-primary color structure, only the color is changed. Filters without modifying other components of conventional RGB displays (for cost reasons). For 3D images, the resolution of a conventional RGB 3D display device for the first image is 960×3×1080, and the resolution of the conventional RGB 3D display device for the second image is 960×3×1080. The resolution of the image device 30 of the present invention for the first image is 2880×1×1080, and the resolution of the image device of the present invention for the second image is 2880×1×1080. For 2D video, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the video device of the present invention is 2880×2×1080. Therefore, the image device of the present invention can display a 2D image having an extra one-color depth by using two segments of the same color point. The image device of the present invention can provide a thin, simple and low-cost 3D image/2D image display device, which ensures display of 3D images, display of 2D images and display of mixed 2D/3D images at full resolution and high brightness. Seamless switching between.

Referring again to FIG. 4, the first color point 31, the second color point 32, the third color point 33, and the fourth color point 34 are rectangular in shape. Referring to FIG. 11, FIG. 12A and FIG. 12B, in this embodiment, the first color point 31 is a green dot, the second color point 32 is a blue dot, the third color point 33 is a red dot, and the fourth color point 34 is White dot.

Referring to Figure 6, there is shown an image device in accordance with a third embodiment of the present invention. The imaging device 40 includes a plurality of pixel groups. Each pixel group includes a plurality of dots 41, 42, 43, 44 arranged in a predetermined same matrix, and each pixel group has at least one first color point 41. At least one second color point 42, at least one third color point 43, and at least one fourth color point 44. The first color point 41 includes at least two first color segments 411 (A1), 412 (A2) independently controlled, and the second color point 42 includes at least two second color segments 421 (B1) independently controlled. 422 (B2), the third color point 43 includes at least two third color segments 431 (C1), 432 (C2) independently controlled, and the fourth color point 44 includes at least two fourth independently controlled Color segments 441 (D1), 442 (D2).

7A and 7B show a segment of a color point for displaying a first image and another segment of the same color point for displaying a second image, in accordance with a second embodiment of the present invention. In FIG. 7A, one of the color points 41, 42, 43, 44 segments 411 (A1), 421 (B1), 431 (C1), and 441 (D1) is used to display a first image. In FIG. 7B, another section 412 (A2), 422 (B2), 432 (C2), 442 (D2) of the same color point 41, 42, 43, 44 is used to display a second image.

Referring again to Figures 7A and 7B, the first image and the second image may be from any video content, multimedia stream, computer output, game output, electronic device, or any known video image device. Furthermore, the first image and the second image may be two-dimensional and/or three-dimensional.

Compared with FIG. 1 and FIG. 6, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the video device 40 of the present invention is 1920×2×1080. For 3D images, the resolution of a conventional RGB 3D display device for the first image is 960×3×1080, and the resolution of the conventional RGB 3D display device for the second image is 960×3×1080. The resolution of the image device 40 of the present invention for the first image is 1920×1×1080, and the resolution of the image device of the present invention for the second image is 1920×1×1080. For 2D video, the resolution of the conventional RGB 3D display device is 1920×3×1080, and the resolution of the video device 40 of the present invention is 1920×2×1080. Therefore, the image device of the present invention can display a 2D image having an extra one-color depth by using two segments of the same color point. The image device of the present invention can provide a thin, simple and low-cost 3D image/2D image display device. It ensures seamless switching between 3D image display, 2D image display and mixed 2D/3D image display at full resolution and high brightness.

Referring again to Figure 6, two of the color points are small dots 41, 44, two of which are large dots 42, 43 whose area is smaller than the area of the large color dots. In this embodiment, the area of the first color point 41 is equal to the area of the fourth color point 44, the area of the third color point 43 is equal to the area of the second color point 42, and the area of the first color point 41 is smaller than the third color point. The area of 43. In this embodiment, the sum of the two areas of the two smaller color points is equal to the area of one of the larger color points. The imaging device 40 of the present invention can be used in an OLED. However, it is difficult to form white spots in the OLED. Referring to FIG. 13 , FIG. 14A and FIG. 14B , in this embodiment, the first color point 41 is a green dot, the second color point 42 is a blue dot, the third color point 43 is a red dot, and the fourth color point 44 is Green dot.

Figure 15 shows an image device in accordance with a fourth embodiment of the present invention. The image device 60 includes a plurality of pixel groups, each of the first pixel groups including a plurality of color points 61, 62, 63, 64 arranged in a predetermined same matrix form, and each pixel group has at least one first color point 61. At least one second color point 62, at least one third color point 63, and at least one fourth color point 64. The first color point 61 includes at least two first color segments 611 (A1), 612 (A2) independently controlled, and the second color point 62 includes independently controlled at least two second color segments 621 (B1) 622 (B2), the third color point 63 includes at least two third color segments 631 (C1), 632 (C2) independently controlled, and the fourth color point 64 includes at least two fourth independently controlled Color segments 641 (D1), 642 (D2). Each of the second pixel groups includes a plurality of color points 65, 66, 67, 68 arranged in a predetermined same matrix, and each pixel group has at least one first color point 65, at least one second color point 66, at least A third color point 67 and at least a fourth color point 68. The first color point 65 includes at least two first color segments 651 (A1), 652 (A2) independently controlled, the second color point 66 including independently controlled at least two second color segments 661 (B1) 662 (B2), the third color point 67 includes at least two third color segments 671 (C1), 672 (C2) independently controlled, and the fourth color point 68 includes at least two fourth independently controlled Color segments 681 (D1), 682 (D2).

The first color point 61 and the second color point 62 in the first pixel group, and the first color point 65 and the second color point 66 in the second pixel group are alternately arranged in a column direction or a row direction. The third color point 63 and the fourth color point 64 in the first pixel group, and the third color point 67 and the fourth color point 68 in the second pixel group are alternately arranged in a column direction or a row direction.

The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Therefore, those skilled in the art can make modifications and changes to the above embodiments without departing from the spirit of the invention. The scope of the invention should be as set forth in the appended claims.

Claims (20)

An image device comprising: a plurality of pixel groups, each pixel group comprising a plurality of dots arranged in a predetermined same matrix form, each pixel group having at least one first color point, at least one second color point, at least one a third color point and at least one fourth color point, wherein the first color point comprises at least two first color segments independently controlled, and the second color point comprises at least two second color segments independently controlled, The third color point includes at least two third color segments independently controlled, and the fourth color dot includes at least two fourth color segments independently controlled; wherein in a column direction or a row direction, relative to the viewer According to the orientation of the image display, one of the at least two first color segments in each pixel group is directly located in the other of the at least two first color segments and in the at least two third color segments. For a first group of viewers, the data of one of the at least two color segments input to each color point is a multi-primary color signal, and for the second group of viewers, at least two of each color point are input Color segment One of the data is a multi-primary color signal; a first sub-pixel display and color space conversion device for receiving input data for a first image in a first color space and outputting it in a second color space a multi-primary segment signal of the first image. The image device of claim 1, further comprising an optical unit disposed at one side of the image device and having a plurality of columns and rows arranged in the column direction or the first direction of the row direction The view separates the components. The image device of claim 2, wherein the optical unit is a liquid crystal shutter. The image device of claim 2, wherein the optical unit is a lenticular lens. The image device of claim 2, wherein the optical unit is a parallax barrier. The image device of claim 1, further comprising a second sub-pixel rendering and color space conversion device for receiving a second color in the first color space Input data of the image and outputting a multi-primary segment signal of the second image in the second color space. The image device of claim 1, wherein the two first color segments are arranged in the column direction or in the first direction of the row direction, and the two second color segments are arranged in the first direction, two The third color segments are arranged in the first direction, and the two fourth color segments are arranged in the first direction. The image device of claim 1, wherein two first color segments are arranged in the column direction or in a second direction of the row direction, and the two second color segments are arranged in the second direction, two The third color segments are arranged in the second direction, and the two fourth color segments are arranged in the second direction. The image device of claim 1, wherein each color point represents a brightness and a chromaticity of a corresponding full-color pixel data by grouping with adjacent points to form a plurality of overlapping full-color dynamic pixel groups. The image device of claim 1, wherein in a white balance state, the second color point and the third color point have lower light intensities than the first color point and the fourth color point, the first color point And the fourth color point is disposed at a diagonal position of the predetermined same matrix of the pixel group. The image device of claim 10, wherein the first color point, the second color point, the third color point, and the fourth color point are square shapes. The image device of claim 10, wherein the first color point, the second color point, the third color point, and the fourth color point are rectangular shapes. The image device of claim 10, wherein the first color point is a green dot, the second color point is a blue dot, the third color dot is a red dot, and the fourth color dot is a white dot. The image device of claim 10, wherein two of the color points are small dots, and two of the color dots are large dots, and an area of the two small dots is smaller than an area of the two large dots. The image device of claim 14, wherein the area of the first color point is equal to the area of the fourth color point, the area of the third color point being equal to the area of the second color point, the first color point The area is smaller than the area of the third color point. The image device of claim 15, wherein the sum of the two areas of the two smaller color points is equal to the area of one of the larger color points. The image device of claim 16, wherein the first color point is a green dot, the second color point is a blue dot, the third color dot is a red dot, and the fourth color dot is a green dot. A method for controlling an image device as claimed in claim 1, comprising the steps of: (a) first sub-pixel rendering and color space conversion for input data for a first image in a first color space, and Outputting a plurality of primary color segment signals for the first image in a second color space; and (b) second subpixel rendering and color space conversion for inputting a second image in the first color space Data, and outputting a plurality of primary color segment signals for the second image in the second color space. An image device comprising: a plurality of pixel groups, each pixel group comprising a plurality of dots arranged in a predetermined same matrix form, each pixel group having at least one first color point, at least one second color point, at least one a third color point and at least one fourth color point, wherein the first color point comprises at least two first color segments independently controlled, and the second color point comprises at least two second color segments independently controlled, The third color point includes at least independent control Two third color segments, and the fourth color dots include at least two fourth color segments independently controlled; wherein at least two first colors in each pixel group are relative to the viewer according to the orientation of the image display One of the segments is directly between the other of the at least two first color segments and between one of the at least two third color segments; the first color point in the first pixel group and the The second color point, and the first color point and the second color point in the second pixel group are alternately arranged in a column direction or a row direction. The image device of claim 19, wherein the third color point and the fourth color point in the first pixel group, and the third color in the second pixel group, according to an orientation of the image display, relative to the viewer The dots and the second color dots are alternately arranged in a column direction or a row direction.