Touch window

Patent metadata

Field	Value
Publication number	US-10048816-B2
Application number	US-201614994805-A
Country	US
Kind code	B2
Filing date	Jan 13, 2016
Priority date	Jan 13, 2015
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A touch window is provided. The touch window may include a substrate including an active area and an unactive area, a first sensing electrode on the active area, a wire electrode on the unactive area, an intermediate layer on the substrate, a second sensing electrode on the intermediate layer, and a conductive layer on the wire electrode. The conductive layer may include a material that corresponds to a material constituting at least one of the first sensing electrode and the second sensing electrode.

First claim

What is claimed is:

1. A touch window comprising:
a substrate including an active area and an unactive area;
a first sensing electrode on the active area of the substrate;
a wire electrode on the unactive area;
an intermediate layer on the substrate;
a second sensing electrode on the intermediate layer; and
a conductive layer on the wire electrode,
wherein the wire includes a first wire connected with the first sensing electrode; and a second wire connected with the second sensing electrode,
wherein the first wire and the second wire are disposed on the same plane of the unactive area of the substrate,
wherein a thickness of the intermediate layer is 0.01 times to 0.1 times the thickness of the substrate,
wherein a sectional area of the intermediate layer is smaller than that of the substrate,
wherein the intermediate layer is provided on the active area and the unactive area,
wherein an exposure area is formed in the intermediate layer, and one surface of the unactive area of the substrate is exposed through the exposure area,
wherein the second sensing electrode and the second wire is connected through the exposure area,
wherein the intermediate layer includes a dielectric material,
wherein at least one of the first sensing electrode, the second sensing electrode, and the wire electrode has a mesh shape including mesh lines,
wherein a line width of the mesh lines is in the range of 0.1 μm to 10 μm,
wherein a thickness of the mesh line is in the range of 100 nm to 500 nm,
wherein the conductive layer includes a material that corresponds to a material constituting the second sensing electrode.

2. The touch window of claim 1 , wherein the conductive layer is provided on an area of the intermediate layer that corresponds to an area in which the wire electrode is provided.

3. The touch window of claim 1 , wherein the conductive layer is provided on an entire surface of the unactive area on an insulating layer.

4. The touch window of claim 1 , wherein the intermediate layer has visible ray transmittance of 79% to 99%.

5. The touch window of claim 1 , the substrate is bent with a partial flat surface and a partial curved surface.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Soung Kyu
• Lee Gyun Rin
• Kwon Do Youb
• Yun Seok Pyo
• Her Jae Hak

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• 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

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F3/0446

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