Liquid crystal display device

• US 20050225708A1
• Filed: 04/05/2005
• Published: 10/13/2005
• Est. Priority Date: 04/09/2004
• Status: Abandoned Application

• Current Assignee: Hitachi Displays Limited (Japan Display Incorporated)
• Original Assignee: Hitachi Displays Limited (Japan Display Incorporated)
• Inventors: Yasukawa, Shinji, Ono, Kikuo, Baba, Masashi, Oke, Ryutaro, Tanaka, Masahiro, Tsubokura, Masaki, Takenaka, Yuuichi, Ojima, Kazunori, Yamagishi, Yasuhiko
• Application Number:
  US11/098,516
• Publication Number:
  US 20050225708A1
• Time in Patent Office: Days
• US Class Current: 349/139
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0443 with several sub-pixels for the same colour in a pixel, not specifically used to display gradations G09G3/364 takes precedence
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 2320/0276 for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3655 Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

A display device having a display element is configured such that the extending directions of electrodes are made different from each other among upper, lower, left and right pixels.

Claims

1. A display device having a display element, wherein the display element is configured such that the extending directions of electrodes are made different from each other among upper, lower, left and right pixels.

2. A display device according to claim 1, wherein the extending direction of the electrodes in each pixel is unidirectional.

3. A display device according to claim 1, wherein the pixels include two types of pixels in which the extending directions of the electrodes are symmetrical with respect to the gate-signal-line extending direction or the video-signal-line extending direction, and the pixels are alternately arranged in the upper, lower, left and right directions.

4. A display device according to claim 2, wherein the pixels include two types of pixels in which the extending directions of the electrodes are symmetrical with respect to the gate-signal-line extending direction or the video-signal-line extending direction, and the pixels are alternately arranged in the upper, lower, left and right directions.

5. A display device according to claim 1, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

6. A display device according to claim 2, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

7. A display device according to claim 3, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

8. A display device according to claim 4, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

9. A display device having a display element, wherein the display element includes lower planar electrodes and upper electrodes each of which has a large number of line-like portions or slit portions both electrodes of which are formed on a same substrate, and the extending directions of the large number of line-like portions or slit portions are made different from each other among upper, lower, left and right pixels.

10. A display device according to claim 9, wherein the extending direction of the line-like portions and the slit portions in each pixel is unidirectional.

11. A display device according to claim 9, wherein the pixels include two types of pixels in which the extending directions of the line-like portions or the slit portions are symmetrical with respect to the gate-signal-line extending direction or the video-signal-line extending direction, and the pixels are alternately arranged in the upper, lower, left and right directions.

12. A display device according to claim 10, wherein the pixels include two types of pixels in which the extending directions of the line-like portions or the slit portions are symmetrical with respect to the gate-signal-line extending direction or the video-signal-line extending direction, and the pixels are alternately arranged in the upper, lower, left and right directions.

13. A display device according to claim 9, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

14. A display device according to claim 10, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

15. A display device according to claim 11, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.

16. A display device according to claim 12, wherein the display element includes color filters having three primary colors and the color filters are arranged such that the color filters of the same color are arranged in the longitudinal direction of the display device and the color filters of three primary colors are sequentially arranged in the lateral direction of the display device.