TOUCH PANEL AND DISPLAY DEVICE USING THE SAME

• US 20110181548A1
• Filed: 01/26/2011
• Published: 07/28/2011
• Est. Priority Date: 01/27/2010
• Status: Abandoned Application

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: SEKIGUCHI, Shinji
• Application Number:
  US13/014,088
• Publication Number:
  US 20110181548A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

Provided is a capacitive coupling type touch panel, including: a plurality of coordinate detection electrodes (XP1, XP2, YP) for detecting X-Y position coordinates; a first substrate including the plurality of coordinate detection electrodes; and a second substrate (6) disposed to be opposed to the first substrate, in which: the capacitive coupling type touch panel further includes, between the first substrate (1) and the second substrate (6): a conductive layer (ZP) having conductivity; a nonconductive layer (8) supporting the conductive layer; a plurality of nonconductive spacers (4) that are formed at intervals in a plane direction of the first substrate and the second substrate; and an elastic layer (5) that is lower in rigidity than the first substrate, the second substrate, and the plurality of nonconductive spacers.

Claims

1. A capacitive coupling type touch panel, comprising:

a plurality of coordinate detection electrodes for detecting X-Y position coordinates;

a first substrate including the plurality of coordinate detection electrodes; and

a second substrate disposed to be opposed to the first substrate,

wherein the capacitive coupling type touch panel further comprises, between the first substrate and the second substrate;

a conductive layer having conductivity;

a nonconductive layer supporting the conductive layer;

a plurality of nonconductive spacers that are formed at intervals in a plane direction of the first substrate and the second substrate; and

an elastic layer that is lower in rigidity than the first substrate, the second substrate, and the plurality of nonconductive spacers.

2. The capacitive coupling type touch panel according to claim 1,

wherein the elastic layer is formed between the second substrate and the conductive layer supported by the nonconductive layer, and

wherein the plurality of nonconductive spacers are formed between the first substrate and the conductive layer.

3. The capacitive coupling type touch panel according to claim 1,

wherein the elastic layer is formed between the first substrate and the conductive layer supported by the nonconductive layer, and

wherein the plurality of nonconductive spacers are formed between the second substrate and the conductive layer.

4. The capacitive coupling type touch panel according to claim 2,

wherein the elastic layer comprises three layers including an intermediate layer and two layers sandwiching the intermediate layer, and

wherein the intermediate layer is higher in rigidity than the two layers sandwiching the intermediate layer.

5. The capacitive coupling type touch panel according to claim 2, wherein the elastic layer is formed in a thickness that is larger than a height of each of the plurality of nonconductive spacers.

6. The capacitive coupling type touch panel according to claim 2, further comprising an insulating film formed on the plurality of coordinate detection electrodes,

wherein the plurality of nonconductive spacers are capable of contacting with the insulating film.

7. The capacitive coupling type touch panel according to claim 1, wherein the plurality of nonconductive spacers comprise beads.

8. The capacitive coupling type touch panel according to claim 1, wherein the plurality of nonconductive spacers comprise protrusions protruding from one of the first substrate side and the second substrate side.

9. The capacitive coupling type touch panel according to claim 1, wherein the plurality of nonconductive spacers are disposed at intervals of equal to or larger than 20 μ

m and equal to or smaller than 10,000 μ

m.

10. A display device with a touch panel, comprising:

a display device including a display portion; and

the capacitive coupling type touch panel according to claim 1 that is disposed on the display portion.

11. The capacitive coupling type touch panel according to claim 3,

wherein the elastic layer comprises three layers including an intermediate layer and two layers sandwiching the intermediate layer, and

wherein the intermediate layer is higher in rigidity than the two layers sandwiching the intermediate layer.

12. The capacitive coupling type touch panel according to claim 3, wherein the elastic layer is formed in a thickness that is larger than a height of each of the plurality of nonconductive spacers.

13. The capacitive coupling type touch panel according to claim 4, wherein the elastic layer is formed in a thickness that is larger than a height of each of the plurality of nonconductive spacers.

14. The capacitive coupling type touch panel according to claim 11, wherein the elastic layer is formed in a thickness that is larger than a height of each of the plurality of nonconductive spacers.