TFT-LCD array substrate and display device

Patent metadata

Field	Value
Publication number	US-8963174-B2
Application number	US-201213994747-A
Country	US
Kind code	B2
Filing date	Nov 16, 2012
Priority date	Mar 2, 2012
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A TFT-LCD array substrate and a display device. The TFT-LCD array substrate comprises a pixel area the pixel area comprising a plurality of pixel units arranged in an array, and each of the pixel units comprising a first electrode and a second electrode generating a horizontal electric field with the first electrode. The second electrode comprises strip electrodes, and the strip electrodes constitute a radial pattern of a regular triangle, a regular polygon or a circle in each of the pixel units.

First claim

What is claimed is:

1. A thin film transistor liquid crystal display array substrate, comprising a pixel area, the pixel area comprising a plurality of pixel units arranged in an array, each of the pixel units comprising a first electrode and a second electrode which generates a horizontal electric field with the first electrode,
wherein the second electrode comprises strip electrodes, the strip electrodes constitute a radial pattern of a regular polygon in each of the pixel units,
wherein the radial pattern is in a shape of regular polygon having an odd number of sides.

2. The array substrate according to claim 1 , wherein the second electrode is located above the first electrode.

3. The array substrate according to claim 1 , wherein a radiation center of the radial pattern is consistent with a center of the corresponding pixel unit.

4. The array substrate according to claim 1 , wherein each pixel unit is a sub-pixel or a pixel including a plurality of sub-pixels.

5. The array substrate according to claim 1 , wherein any two of the strip electrodes have an equal width.

6. The array substrate according to claim 1 , wherein the first electrode is a planar electrode.

7. The array substrate according to claim 1 , wherein the first electrode is a pixel electrode, and the second electrode is a common electrode.

8. The array substrate according to claim 1 , wherein the first electrode is a common electrode, and the second electrode is a pixel electrode.

9. The array substrate according to claim 8 , wherein each of the pixel units is a pixel including a plurality of sub-pixels, and the radial pattern of the pixel electrode is disconnected at a boundary between every two adjacent sub-pixels.

10. The array substrate according to claim 1 , wherein the radial pattern comprises nested regular polygons with gradually increased size.

11. The array substrate according to claim 10 , wherein the nested, regular polygons are connected to one another with a strip electrode crossing with these regular polygons.

12. A display device comprising the array substrate according to claim 1 .

Assignees

• Beijing Boe Optoelectronics

Inventors

• Li Cheng
• Dong Xue
• Chen Dong
• Guo Renwei
• Mu Suzhen

Classifications

• G02F2001/134318

  Physics · mapped topic

• G02F1/136286 Primary

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/134363 Primary

  for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS] · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/134318

  having a patterned common electrode · CPC title