TOUCH SENSOR

• US 20150029414A1
• Filed: 03/04/2014
• Published: 01/29/2015
• Est. Priority Date: 07/29/2013
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: HUR, Kang Heon, KIM, Dae Ho, LEE, Tae Kyung, LEE, Kyu Sang
• Application Number:
  US14/196,245
• Publication Number:
  US 20150029414A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

Disclosed herein is a touch sensor including a window substrate, a bezel layer formed on an edge part of the window substrate, a reflective layer formed on the bezel layer, and electrode patterns formed in the bezel layer of the window substrate, wherein the bezel layer is formed of a transparent material. Thus, due to the formation of the bezel layer and the reflective layer of the touch sensor, bezel colors are effectively realized using a more thinned film bezel.

Claims

1. A touch sensor, comprising:

a window substrate;

a bezel layer formed on an edge part of the window substrate; and

a reflective layer formed on the bezel layer,

wherein the bezel layer is formed of a transparent material.

2. The touch sensor as set forth in claim 1, wherein the bezel layer is formed to have a visible region refractive index of 1.9 to 4.

3. The touch sensor as set forth in claim 1, wherein the bezel layer is formed to have visible region transmittance of 50% to 99%.

4. The touch sensor as set forth in claim 1, wherein a stack direction thickness of the bezel layer is 30 nm to 500 nm.

5. The touch sensor as set forth in claim 1, wherein the bezel layer is formed to have a visible region refractive index of 1.6 to 1.9.

6. The touch sensor as set forth in claim 1, wherein the bezel layer is formed to have visible region transmittance of 40% to 60%.

7. The touch sensor as set forth in claim 1, wherein the bezel layer is formed to a stack direction thickness of 10 nm to 1000 nm.

8. The touch sensor as set forth in claim 1, wherein the bezel layer is formed of TiO₂, Al₂O₃, SiO₂, HfO₂, or a combination thereof.

9. The touch sensor as set forth in claim 1, wherein the bezel layer is formed of ZnO, MgO, Ce2O₃, In₂O₃, ITO, BaTiO₃, (Ba, Sr)TiO₃, KTaO₃, or a combination thereof.

10. The touch sensor as set forth in claim 1, wherein the reflective layer is formed to have visible region reflectivity of 20% to 99%.

11. The touch sensor as set forth in claim 10, wherein the reflective layer is formed to have visible region reflectivity of 30% to 99%.

12. The touch sensor as set forth in claim 1, wherein the reflective layer is formed of titanium (Ti), aluminum (Al), nickel (Ni), silver (Ag), chrome (Cr), platinum (Pt), molybdenum (Mo), or a combination thereof.

13. The touch sensor as set forth in claim 1, wherein the reflective layer is formed of copper (Cu), gold (Au), tungsten (W), iridium (Ir), or a combination thereof.

14. The touch sensor as set forth in claim 1, further comprising:

electrode patterns formed in the bezel layer of the window substrate;

an insulating layer formed on the reflective layer; and

electrode wirings electrically connected from the electrode patterns and formed on the insulating layer.