Touch panel for display device

• US 20040095335A1
• Filed: 11/12/2003
• Published: 05/20/2004
• Est. Priority Date: 11/14/2002
• Status: Abandoned Application

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Oh, Eui Yeol, Hong, Hee Jung
• Application Number:
  US10/704,644
• Publication Number:
  US 20040095335A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A touch panel for a display device including a display device, a touch panel on the display device, a conductive pattern on an upper surface of the touch panel and a conductive member connected to the conductive pattern, and supporting the display device and the touch panel.

Claims

1. A touch panel for a display device comprising:

a display device;

a touch panel on the display device;

a conductive pattern on an upper surface of the touch panel; and

a conductive member connected to the conductive pattern, and supporting the display device and the touch panel.

2. The touch panel of claim 1, wherein the display device is a liquid crystal display (LCD) device.

3. The touch panel of claim 2, wherein the LCD device comprising:

an LCD panel displaying a picture image according to external driving and picture signals, the LCD panel having upper and lower substrates bonded to each other with a fixed gap in between, and a liquid crystal layer in the gap between the upper and lower substrates;

an the upper polarizing plate on the LCD panel;

a lower polarizing plate under the LCD panel; and

a backlight uniformly irradiating light upon a rear surface of the LCD panel.

4. The touch panel of claim 1, wherein the touch panel is a resistive type touch panel.

5. The touch panel of claim 1, wherein the touch panel is a capacitive type touch panel.

6. The touch panel of claim 1, wherein the conductive pattern is formed of an indium tin oxide (ITO).

7. The touch panel of claim 1, wherein the conductive pattern is formed of a silver Ag.

8. The touch panel of claim 1, wherein the conductive pattern is formed in the circumference of the surface of the touch panel.

9. The touch panel of claim 1, wherein the display device is one of CRT, PDP and EL display devices.

10. The touch panel of claim 1, wherein the conductive member is a metal case.

11. The touch panel of claim 10, wherein the metal case is a top case of the LCD device.

12. The touch panel of claim 10, wherein the metal case is a system case.