DISPLAY SUBSTRATE AND DISPLAY APPARATUS HAVING THE SAME

• US 20100067211A1
• Filed: 09/11/2009
• Published: 03/18/2010
• Est. Priority Date: 09/12/2008
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Han, Mi-Jung, Hong, Sung-Jin, Hwang, Tae-Hyung
• Application Number:
  US12/558,075
• Publication Number:
  US 20100067211A1
• Time in Patent Office: Days
• US Class Current: 361/818
• CPC Class Codes: G02F 1/136218 Shield electrodes
• CPC Class Codes: G02F 1/167 by electrophoresis

Abstract

A display substrate includes a base substrate having a plurality of pixel areas, a switching device arranged in each pixel area to switch a pixel voltage, a pixel electrode arranged in each pixel area and electrically connected to the switching device to receive the pixel voltage, and a shielding member positioned between two adjacent pixel areas.

Claims

1. A display substrate comprising:

a base substrate comprising a plurality of pixel areas;

a switching device arranged in each pixel area to switch a pixel voltage;

a pixel electrode arranged in each pixel area and electrically connected to the switching device to receive the pixel voltage; and

a shielding member positioned between two adjacent pixel areas, the shielding member comprises a conductive material and is thicker than the pixel electrode.

2. The display substrate of claim 1, further comprising:

a plurality of data lines arranged on the base substrate and electrically connected to the switching device; and

a plurality of gate lines arranged on the base substrate, insulated from the data lines and crossing the data lines, and electrically connected to the switching device,

wherein the shielding member is arranged above the data lines.

3. The display substrate of claim 2, wherein the shielding member comprises a thickness of about 120 percent of a thickness of the pixel electrode.

4. The display substrate of claim 3, wherein the shielding member extends along a corresponding data line.

5. The display substrate of claim 3, wherein the shielding member comprises metal or a conductive polymer.

6. The display substrate of claim 5, wherein the conductive polymer comprises at least one of polyvinylidene difluoride (PVDF), polyanyline, polyathetylene, polypyrol, or carbon nano tube.

7. A display apparatus comprising:

a first display substrate;

a second display substrate facing the first display substrate, the second display substrate coupling with the first display substrate; and

a gray scale adjustment layer interposed between the first display substrate and the second display substrate to adjust a gray scale in response to a pixel voltage,

wherein the first display substrate comprises;

a base substrate comprising a plurality of pixel areas;

a switching device arranged in each pixel area to switch the pixel voltage;

a pixel electrode arranged in each pixel area and electrically connected to the switching device to receive the pixel voltage; and

a shielding member positioned between two adjacent pixel areas, the shielding member comprises a conductive material and is thicker than the pixel electrode.

8. The display apparatus of claim 7, wherein the gray scale adjustment layer comprises a plurality of electrophoretic particles.

9. The display apparatus of claim 7, wherein the first display substrate further comprises:

a plurality of data lines arranged on the base substrate and electrically connected to the switching device; and

a plurality of gate lines arranged on the base substrate, insulated from the data lines and crossing the data lines, and electrically connected to the switching device,

wherein the shielding member is arranged above the data lines.

10. The display apparatus of claim 9, wherein the shielding member comprises a thickness of about 120 percent of a thickness of the pixel electrode.

11. The display apparatus of claim 10, wherein the shielding member extends along a corresponding data line.

12. The display apparatus of claim 10, wherein the first display substrate further comprises an organic insulating layer formed on the first base substrate, and the shielding member and the pixel electrode are formed on the organic insulating layer.

13. The display apparatus of claim 10, wherein the pixel electrode is spaced apart from a corresponding data line by about 4 micrometers.

14. The display apparatus of claim 10, wherein the second display substrate comprises:

a second base substrate facing the first base substrate; and

a common electrode interposed between the second base substrate and the gray scale adjustment layer, the common electrode spaced apart from the shielding member to receive a common voltage.

15. The display apparatus of claim 10, wherein the shielding member comprises metal or a conductive polymer.

16. The display apparatus of claim 15, wherein the conductive polymer comprises at least one of polyvinylidene difluoride (PVDF), polyanyline, polyathetylene, polypyrol, or carbon nano tube.

17. A display substrate comprising:

a base substrate comprising a plurality of pixel areas;

a switching device arranged in each pixel area to switch a pixel voltage;

a plurality of data lines arranged on the base substrate and electrically connected to the switching device;

a plurality of gate lines arranged on the base substrate, insulated from the data lines and crossing the data lines, and electrically connected to the switching device;

a pixel electrode arranged in each pixel area and electrically connected to the switching device to receive the pixel voltage; and

a shielding member arranged above the data lines, the shielding member comprises a conductive material.

18. The display substrate of claim 17, wherein the shielding member is formed on a same layer as the pixel electrode.

19. The display substrate of claim 18, wherein the shielding member is thicker than the pixel electrode.