Sensing Structure of a Display

• US 20090195516A1
• Filed: 05/06/2008
• Published: 08/06/2009
• Est. Priority Date: 02/05/2008
• Status: Abandoned Application

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Cheng, Kuang Cheng, Kuo, Han Ping
• Application Number:
  US12/115,918
• Publication Number:
  US 20090195516A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A sensing structure includes a display module, a sensing unit, and a chip. The display module includes an active area. The sensing unit is disposed on the display module and overlaps at least part of the active area. The chip is disposed on the display module and outside the active area.

Claims

1. A sensing structure, comprising:

a display module having an active area;

a sensing unit disposed on the display module and overlapping at least part of the active area; and

a chip disposed on the display module outside the active area and electrically connected with the sensing unit;

wherein the sensing unit is adapted to generate a signal and transmit the signal to the chip while being physically contacted.

2. The sensing structure as claimed in claim 1, wherein the display module comprises a first substrate and a second substrate, in which the first substrate is disposed above the second substrate, and the sensing unit is disposed on the first substrate.

3. The sensing structure as claimed in claim 2, further comprising a driver chip disposed on the second substrate.

4. The sensing structure as claimed in claim 2, wherein the chip is disposed on the first substrate.

5. The sensing structure as claimed in claim 1, where in the chip is disposed on the sensing unit.

6. The sensing structure as claimed in claim 1, wherein the sensing unit comprises a touch panel.

7. The sensing structure as claimed in claim 1, wherein the sensing unit comprises a touch unit integrated with the display module.

8. The sensing structure as claimed in claim 2, wherein the sensing unit is disposed on the top surface of the first substrate.

9. The sensing structure as claimed in claim 2, wherein the sensing unit comprises a conductive layer which is formed on the top surface of the first substrate.

10. The sensing structure as claimed in claim 9, wherein the conductive layer is made of Indium Tin Oxide (ITO).

11. The sensing structure as claimed in claim 9, wherein the sensing unit comprises a protective layer disposed on the conductive layer.

12. The sensing structure as claimed in claim 11, wherein the protective layer comprises a polarizer.

13. The sensing structure as claimed in claim 1, further comprising a cover lens covering at least part of the sensing unit.

14. The sensing structure as claimed in claim 13, wherein the cover lens is partially formed with a receiving space being adapted to receive the chip.

15. The sensing structure as claimed in claim 13, wherein the cover lens comprises a body and a border, the body is made of a transparent material, and the border is made of an opaque material.

16. The sensing structure as claimed in claim 15, wherein the body substantially overlaps the active area, and the border is substantially disposed outside the active area.

17. The sensing structure as claimed in claim 1, further comprising a flexible printed circuit electrically connected with the chip and adapted to transmit the signal from the chip to a central control system.

18. The sensing structure as claimed in claim 1, wherein the sensing unit comprises a capacitance sensing unit or a resistance sensing unit.