Liquid crystal display

• US 6,476,895 B1
• Filed: 09/01/2000
• Issued: 11/05/2002
• Est. Priority Date: 09/01/1999
• Status: Expired due to Term

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Kwak, Dong-Young, Kim, Ki-Tae
• Primary Examiner(s): DUDEK, JAMES A
• Application Number:
  US09/654,572
• Time in Patent Office: 795 Days
• Field of Search: 349/123, 349/152
• US Class Current: 349/123
• CPC Class Codes: G02F 1/133388 with constructional differences between the display region and the peripheral region
• CPC Class Codes: G02F 1/1337 Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement

Abstract

A liquid crystal display includes an image display part including a gate line; a data line; a switching device connected electrically to the data and gate lines; an organic insulating layer having a contact hole and covering the switching device; and a pixel electrode on the organic insulating layer connected to the electrode of the switching device through the contact hole. A peripheral part surrounding the image display part includes wires and devices having gate and data pad links and electrostatic discharge devices, and a pattern isolated from the wires and devices, the pattern having a part that is exposed. An alignment layer covers the exposed part of the pattern.

Claims

1. A liquid crystal display comprising:

an image display part including;

a gate line;

a data line;

a switching device connected electrically to the data and gate lines;

an organic insulating layer having a contact hole and covering the switching device; and

a pixel electrode on the organic insulating layer connected to the electrode of the switching device through the contact hole;

a peripheral part surrounding the image display part, the peripheral part including;

wires and devices including gate and data pad links and electrostatic discharge devices and

a pattern is isolated from the wires and devices, the pattern having a part that is exposed; and

an alignment layer covering the exposed part of the pattern.

2. The liquid crystal display according to claim 1, wherein the pattern is made of the same wiring substance as the pixel electrode.

3. The liquid crystal display according to claim 1, wherein the pattern is made of the same wiring substance as the data line.

4. The liquid crystal display according to claim 1, wherein the pattern is made of the same wiring substance as the gate line.

5. The liquid crystal display according to claim 1, wherein the pattern is formed throughout the peripheral part.

6. The liquid crystal display according to claim 2, wherein the pattern is formed throughout the peripheral part.

7. The liquid crystal display according to claim 3, wherein the pattern is formed throughout the peripheral part.

8. The liquid crystal display according to claim 4, wherein the pattern is formed throughout the peripheral part.

9. The liquid crystal display according to claim 5, wherein the pattern is substantially electrically isolated from a sealing portion in the peripheral part.

10. The liquid crystal display according to claim 6, wherein the pattern is substantially electrically isolated from a sealing portion in the peripheral part.

11. The liquid crystal display according to claim 7, wherein the pattern is substantially electrically isolated from a sealing portion in the peripheral part.

12. The liquid crystal display according to claim 8, wherein the pattern is substantially electrically isolated from a sealing portion in the peripheral part.

13. The liquid crystal display according to claim 1, wherein the pattern includes an arbitrary form in an area of the peripheral part.

14. The liquid crystal display according to claim 2, wherein the pattern includes an arbitrary form in an area of the peripheral part.

15. The liquid crystal display according to claim 3, wherein the pattern includes an arbitrary form in an area of the peripheral part.

16. The liquid crystal display according to claim 4, wherein the pattern includes an arbitrary form in an area of the peripheral part.