TOUCH SENSOR AND METHOD OF MANUFACTURING THE SAME

• US 20130328575A1
• Filed: 08/15/2012
• Published: 12/12/2013
• Est. Priority Date: 06/07/2012
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Lee, Jin Uk, Ra, Seung Hyun
• Application Number:
  US13/586,801
• Publication Number:
  US 20130328575A1
• Time in Patent Office: Days
• US Class Current: 324/649
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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

Abstract

Disclosed herein are a touch sensor and a method of manufacturing the same. The touch sensor includes: a transparent substrate; a resin layer formed on one surface of the transparent substrate; and an electrode formed on one surface of the resin layer, wherein one surface of the resin layer is formed with a substrate prominence and depression part having a prominence and depression shape.

Claims

1. A touch sensor comprising:

a transparent substrate;

a resin layer formed on one surface of the transparent substrate; and

an electrode formed on one surface of the resin layer,

wherein one surface of the resin layer is formed with a substrate prominence and depression part having a prominence and depression shape.

2. The touch sensor as set forth in claim 1, wherein the resin layer is made of an imprint resin.

3. The touch sensor as set forth in claim 1, wherein the electrode is a touch electrode sensing a touch.

4. The touch sensor as set forth in claim 3, wherein one surface of the touch electrode positioned at the substrate prominence and depression part is formed with an electrode prominence and depression part having a shape corresponding to that of the substrate prominence and depression part.

5. The touch sensor as set forth in claim 3, wherein the touch electrode is formed in a metal mesh pattern.

6. The touch sensor as set forth in claim 5, wherein the touch electrode is made of copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), chromium (Cr), or a combination thereof.

7. The touch sensor as set forth in claim 5, wherein the touch electrode is made of metal silver formed by exposing/developing a silver salt emulsion layer.

8. The touch sensor as set forth in claim 1, wherein the substrate prominence and depression part is formed in a moth-eye shape.

9. The touch sensor as set forth in claim 1, wherein the substrate prominence and depression part has a pitch of 150 to 300 nm and a height one to three times larger than the pitch.

10. A method of manufacturing a touch sensor, the method comprising:

a resin layer forming step of forming a resin layer on one surface of a transparent substrate;

a substrate prominence and depression part forming step of forming a substrate prominence and depression part having a prominence and depression shape on one surface of the resin layer; and

an electrode forming step of forming an electrode on the substrate prominence and depression part.

11. The method as set forth in claim 10, wherein in the substrate prominence and depression part forming step,

the resin layer is made of an imprint resin, and

one surface of the imprint resin is imprinted to form the substrate prominence and depression part.

12. The method as set forth in claim 10, wherein in the electrode forming step, one surface of the electrode positioned at the substrate prominence and depression part is formed with an electrode prominence and depression part having a shape corresponding to that of the substrate prominence and depression part

13. The method as set forth in claim 10, wherein the electrode is a touch electrode sensing a touch.

14. The method as set forth in claim 13, wherein in the electrode forming step, the touch electrode is formed by plating or sputtering.

15. The method as set forth in claim 13, wherein the touch electrode is formed in a metal mesh pattern.

16. The method as set forth in claim 15, wherein the touch electrode is made of copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), chromium (Cr), or a combination thereof.

17. The method as set forth in claim 15, wherein the touch electrode is made of metal silver formed by exposing/developing a silver salt emulsion layer.

18. The method as set forth in claim 10, wherein in the electrode forming step, the substrate prominence and depression part is formed in a moth-eye shape.

19. The method as set forth in claim 11, wherein in the substrate prominence and depression part forming step, a pitch of the substrate prominence and depression part is 150 to 300 nm, and a height thereof is one to three times larger than the pitch.