Electrode member and touch panel including the same

Patent metadata

Field	Value
Publication number	US-9898053-B2
Application number	US-201314095490-A
Country	US
Kind code	B2
Filing date	Dec 3, 2013
Priority date	Dec 3, 2012
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

Disclosed is a touch panel. The touch panel includes a substrate, and an electrode part formed in a mesh shape on the substrate. The electrode part includes a resin layer comprising first and second sub-patterns, and a transparent electrode on the first sub-pattern. A ratio of a width of the first sub-pattern to a width of the second sub-pattern is in a range of 1:0.01 to 1:0.5.

First claim

What is claimed is:

1. A touch panel comprising:
a substrate comprising an active area and an unactive area; and
an electrode part on the active area of the substrate,
wherein the electrode part comprises a first electrode and a second electrode,
wherein the first electrode comprises a plurality of first sensor parts and a first connection electrode part to connect the first sensor parts with each other,
wherein the first connection electrode part connects the first sensor parts with each other in a first direction,
wherein the second electrode comprises a plurality of second sensor parts and a second connection electrode part to connect the second sensor parts with each other,
wherein the second connection electrode part connects the second sensor parts with each other in a second direction crossing the first direction,
wherein an insulating layer is interposed between the first connection electrode part and the second connection electrode part,
wherein the electrode part is provided in a mesh shape,
wherein the electrode part comprises a resin layer and an electrode material,
wherein the resin layer is provided therein with a first sub-pattern and a second sub-pattern,
wherein the electrode part includes a mesh opening part and a mesh line part,
wherein the first sub-pattern is provided in the mesh line part,
wherein the second sub-pattern is provided in the mesh opening part,
wherein the second sub-pattern is provided between the first sub-pattern and an adjacent first sub-pattern,
wherein the electrode material comprises a metal paste material,
wherein the electrode material is disposed only on the first sub-pattern,
wherein the first sub-pattern is formed integrally with the second sub-pattern,
wherein a width of the first sub-pattern is wider than a width of the second sub-pattern,
wherein the width of the first sub-pattern corresponds to a width of the electrode material, and
wherein the width of the first sub-pattern is in a range of 500 nm to 3 μm.

2. The touch panel of claim 1 , wherein a ratio of the width of the first sub-pattern to the width of the second sub-pattern is in a range of 1:0.01 to 1:0.5.

3. The touch panel of claim 1 , wherein a ratio of the width of the first sub-pattern to a height of the first sub-pattern is in a range of 1:0.1 to 1:1.

4. The touch panel of claim 1 , wherein a ratio of the width of the first sub-pattern to a height of the first sub-pattern is in a range of 0.1:1 to 1:1.

5. The touch panel of claim 1 , wherein a ratio of a height of the first sub-pattern to a height of the second sub-pattern is in a range of 1:0.1 to 1:0.9.

6. The touch panel of claim 1 , wherein the first and second sub-patterns have an embossed shape.

7. The touch panel of claim 1 , wherein the first and second sub-patterns have an intaglio shape.

8. The touch panel of claim 1 , wherein the electrode material comprises at least one selected from the group consisting of copper (Cu), aluminum (Al), nickel (Ni), tin (Sn), zinc (Zn), gold (Au), silver (Ag), and alloys thereof.

9. The touch panel of claim 1 , wherein the width of the second sub-pattern is in a range of 100 nm to 500 nm.

10. An electrode member comprising:
a substrate comprising an active area and an unactive area;
a sensing electrode formed on the active area of the substrate;
a wire electrode formed on the unactive area of the substrate; and
a resin layer formed on the substrate;
wherein the wire electrode is disposed on the resin layer,
wherein the resin layer is provided therein with a first pattern and a second pattern,
wherein the first pattern is formed integrally with the second pattern,
wherein the wire electrode is provided in a mesh shape,
wherein the wire electrode includes a mesh opening part and a mesh line part,
wherein the first pattern is provided in the mesh line part,
wherein the second pattern is provided in the mesh opening part,
wherein the second pattern is provided between the first pattern and an adjacent first pattern,
wherein the wire electrode is disposed only on the first pattern,
wherein the wire electrode comprises a metal paste material,
wherein a width of the first pattern is wider than a width of the second pattern,
wherein the width of the first pattern corresponds to a width of the wire electrode,
wherein the sensing electrode is disposed on the resin layer,
wherein the resin layer is provided therein with a third pattern and a fourth pattern,
wherein the third pattern is formed integrally with the fourth pattern,
wherein the sensing electrode is provided in a mesh shape,
wherein the sensing electrode includes a mesh opening part and a mesh line part,
wherein the third pattern is provided in the mesh line part,
wherein the fourth pattern is provided in the mesh opening part,
wherein the fourth pattern is provided between the third pattern and an adjacent third pattern,
wherein the sensing electrode is disposed only on the third pattern,
wherein a width of the third pattern is wider than a width of the fourth pattern,
wherein the width of the third pattern corresponds to a width of the sensing electrode, and
wherein the width of the third pattern is in a range of 500 nm to 3 μm.

11. The electrode member of claim 10 , wherein the sensing electrode and wire electrode comprise a same metal material.

12. A touch panel comprising:
a cover window; and
an electrode member on the cover window,
wherein the electrode member comprises:
a substrate comprising an active area and an unactive area;
a sensing electrode formed on the active area of the substrate;
a wire electrode formed on the unactive area of the substrate; and
a resin layer formed on the substrate;
wherein the wire electrode is disposed on the resin layer,
wherein the resin layer is provided therein with a first pattern and a second pattern,
wherein the first pattern is formed integrally with the second pattern,
wherein the wire electrode is provided in a mesh shape,
wherein the wire electrode includes a mesh opening part and a mesh line part,
wherein the first pattern is provided in the mesh line part,
wherein the second pattern is provided in the mesh opening part,
wherein the second pattern is provided between the first pattern and an adjacent first pattern,
wherein the wire electrode is disposed only on the first pattern,
wherein the wire electrode comprises a metal paste material,
wherein a width of the first pattern is wider than a width of the second pattern,
wherein the width of the first pattern corresponds to a width of the wire electrode,
wherein the sensing electrode is disposed on the resin layer,
wherein the resin layer is provided therein with a third pattern and a fourth pattern,
wherein the third pattern is formed integrally with the fourth pattern,
wherein the sensing electrode is provided in a mesh shape,
wherein the sensing electrode includes a mesh opening part and a mesh line part,
wherein the third pattern is provided in the mesh line part,
wherein the fourth pattern is provided in the mesh opening part,
wherein the fourth pattern is provided between the third pattern and an adjacent third pattern,
wherein the sensing electrode is disposed only on the third pattern,
wherein a width of the third pattern is wider than a width of the fourth pattern,
wherein the width of the third pattern corresponds to a width of the sensing electrode, and
wherein the width of the third pattern is in a range of 500 nm to 3 μm.

13. The touch panel of claim 12 ,
wherein the sensing electrode and wire electrode comprise a same metal material.

14.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Young Jae
• Kim Hyun Soo
• Bang Jung Hwan
• Shin Jun Sik
• Yang Joon Hyuk
• Seong Dong Mug
• Eom Jun Phill
• Yoo Kyoung Jong
• Lee Jun
• Koo Chan Kyu

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F1/1692 Primary

  the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders · CPC title

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title