DISPLAY DEVICE AND INPUT DEVICE

• US 20110037726A1
• Filed: 10/20/2010
• Published: 02/17/2011
• Est. Priority Date: 04/23/2008
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: LEE, Jung Mok
• Granted Patent: US 8,988,364 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/04142 the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate

Abstract

Disclosed is a display device. The display device includes: a touch panel; a display panel in close contact with the lower surface of the touch panel; and a plurality of sensors arranged under the touch panel and configured to sense a pressure which is applied to the touch panel. The display device can improve the picture quality by bring the touch panel into close contact with the display panel. Also, the display device can input a signal, such as a touch or others, by sensing a pressure, which is applied to the touch panel, using the sensors.

Claims

1. A display device comprising:

a touch panel;

a display panel in close contacted with the lower surface of the touch panel; and

a plurality of sensors arranged under the touch panel and configured to sense a pressure which is applied to the touch panel.

2. The display device claimed as claim 1, further comprising a mold frame configured to accommodate the display panel, wherein the sensors are interposed between the touch panel and the mold frame.

3. The display device claimed as claim 2, further comprising a cushion member interposed between the display panel and the mold frame and configured to have elasticity.

4. The display device claimed as claim 1, further comprising a pressure conductor configured to expand from the touch panel and to transfer the pressure to the sensors.

5. The display device claimed as claim 4, wherein the height of the pressure conductor is larger than the thickness of the display panel.

6. The display device claimed as claim 1, wherein the pressure is applied to the sensors via the display panel.

7. The display device claimed as claim 6, further comprising a cushion member interposed between the display panel and the sensors.

8. A display device comprising:

a touch panel;

a display module in close contact with the touch panel;

a case configured to accommodate the display module; and

a plurality of sensors configured to sense a pressure applied to the touch panel.

9. The display device claimed as claim 8, further comprising an elastic member interposed between the case and the display module.

10. The display device claimed as claim 8, wherein the case includes:

an outer frame disposed the outer side of the touch panel and display module;

a first supporter formed to expand from the outer frame and to support the sensors; and

a second supporter formed to expand from the first supporter, placed under and separated from the display module.

11. The display device claimed as claim 8, wherein the sensors are interposed between the case and the display module and wherein the pressure is transferred to the sensors via the display module.

12. An input device comprising:

a transparent window;

a display panel placed under and integrated with the window; and

a plurality of sensors arranged under the window and configured to sense a pressure which is applied to the window.

13. The input device claimed as claim 12, wherein the sensors are arranged around the display panel.

14. The input device claimed as claim 12, wherein the sensors are arranged under the display panel.

15. The input device claimed as claim 12, further comprising a transparent resin interposed between and closely contacted with the window and the display panel.