DISPLAY DEVICE

• US 20090225015A1
• Filed: 04/26/2006
• Published: 09/10/2009
• Est. Priority Date: 07/29/2005
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Itoh, Ryoki, Hisada, Yuhko
• Granted Patent: US 8,089,432 B2
• Time in Patent Office: Days
• US Class Current: 345/84
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2340/06 Colour space transformation
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

Abstract

A display device that can prevent linear unevenness (uneven line) generated in one direction of a display image and can provide excellent display qualities includes a pixel including sub-pixels of n-colors (where n is an integer of 4 or more), and a signal line arranged to drive sub-pixels, the pixel and the signal line arranged to drive sub-pixels being disposed in a display region. The signal line arranged to drive sub-pixels is disposed on a display region center side of a sub-pixel positioned at least one terminal of the display region. The signal line arranged to drive sub-pixels is not disposed on a non-display region side of the sub-pixel positioned at the at least one terminal. The sub-pixel positioned at the at least one terminal has a color other than a color with the highest luminance of the n-colors.

Claims

1-13. -13. (canceled)

14. A display device comprising:

a pixel including sub-pixels of n-colors where n is an integer equal to at least 4; and

a signal line arranged to drive sub-pixels;

the pixel and the signal line arranged to drive sub-pixels being disposed in a display region;

wherein

the signal line arranged to drive sub-pixels is disposed on a display region center side of a sub-pixel positioned at least one terminal of the display region;

the signal line arranged to drive sub-pixels is not disposed on a non-display region side of the sub-pixel positioned at the at least one terminal; and

the sub-pixel positioned at the at least one terminal has a color other than a color with the highest luminance of the n-colors.

15. The display device according to claim 14, wherein the sub-pixel positioned at the at least one terminal has a color with the lowest luminance of the n-colors.

16. The display device according to claim 14, wherein the pixel has a sub-pixel array in which a sub-pixel having a color with the lowest luminance of the n-colors is disposed at one end and a sub-pixel having a color with the highest luminance of the n-colors is disposed at the other end.

17. The display device according to claim 14, wherein the pixel has a sub-pixel array in which a sub-pixel having a color with the highest luminance of the n-colors is not adjacent to a sub-pixel having a color with the second-highest luminance of the n-colors.

18. The display device according to claim 14, wherein the pixel includes sub-pixels of four colors, and the sub-pixels are arrayed in order of the highest-luminance color, the third-highest-luminance color, the second-highest-luminance color, the lowest-luminance color.

19. The display device according to claim 14, wherein the pixel includes sub-pixels of four colors and the sub-pixels are arrayed in order of white, red, green, blue.

20. The display device according to claim 14, wherein the pixel includes sub-pixels of five colors, and the sub-pixels are arrayed in order of the highest-luminance color, the fourth-highest-luminance color, the third-highest-luminance color, the second-highest-luminance color, the lowest-luminance color, or

in order of the highest-luminance color, the third-highest-luminance color, the fourth-highest-luminance color, the second-highest-luminance color, the lowest-luminance color.

21. The display device according to claim 14, wherein the pixel includes sub-pixels of six colors, and the sub-pixels are arrayed in order of the highest-luminance color, the fifth-highest-luminance color, the third-highest-luminance color, the fourth-highest-luminance color, the second-highest-luminance color, the lowest-luminance color, in order of the highest-luminance color, the fourth-highest-luminance color, the fifth-highest-luminance color, the second-highest-luminance color, the third-highest-luminance color, the lowest-luminance color,

in order of the highest-luminance color, the fourth-highest-luminance color, the second-highest-luminance color, the fifth-highest-luminance color, the third-highest luminance color, the lowest-luminance color, or in order of the highest-luminance color, the third-highest-luminance color, the fifth-highest-luminance color, the second-highest-luminance color, the fourth-highest-luminance color, the lowest-luminance color.

22. The display device according to claim 14, wherein the display device includes a signal line on the non-display region side of the sub-pixel positioned at the at least one terminal.

23. The display device according to claim 22, wherein the display device includes a sub-pixel not involved in display on the non-display region side of the sub-pixel positioned at the at least one terminal.

24. The display device according to claim 14, wherein the sub-pixels in the pixel are arrayed in accordance with a stripe array.

25. The display device according to claim 14, wherein the display device is a liquid crystal display device and includes color filters.

26. The display device according to claim 25, wherein the color filters have substantially the same film thickness and are disposed in the sub-pixels, respectively.