Conductive pattern

Patent metadata

Field	Value
Publication number	US-10884555-B2
Application number	US-201615550019-A
Country	US
Kind code	B2
Filing date	Feb 5, 2016
Priority date	Feb 10, 2015
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

Provided is a conductive pattern having at least one unit conductive pattern forming one touch pixel according to an aspect of the present invention. The at least one unit conductive pattern includes a plurality of nanostructures each having opposite ends. A ratio of nanostructures, both opposite ends of which are in contact with edges of the at least one unit conductive pattern to all nanostructures included in the at least one unit conductive pattern is 70% or more.

First claim

The invention claimed is:

1. A conductive pattern including at least one unit conductive pattern comprising a touch pixel, the unit conductive pattern comprises:
a plurality of nano structures having both ends, and
a matrix containing the plurality of nano structures,
wherein a first ratio of a number of the plurality of nano structures of the unit conductive pattern in which both ends are in contact with side surfaces of the unit conductive pattern to a total number of the plurality of nano structures of the unit conductive pattern is 70% or more,
wherein a first end of at least one of the plurality of nano structures in contact with a first side surface of the unit conductive pattern is exposed to an outside of the matrix, a second end of the at least one of the plurality of nano structures in contact with a second side surface of the unit conductive pattern is exposed to an outside of the matrix, and the first side surface and the second side surface are adjacent to each other,
wherein the at least one of the plurality of nano structures has a curved shape and intersects a virtual straight line between the first end and the second end at at least one point other than the first end and the second,
wherein the conductive pattern further comprises a connection portion connecting adjacent unit conductive patterns and including a plurality of nano structures having both ends,
wherein a second ratio of a number of the plurality of nano structures of the connection portion in which both ends are in contact with side surfaces of the connection portion to a total number of the plurality of nano structures of the connection portion is different from the first ratio, and
wherein a width of the connection portion is 50% to 60% of a width of the unit conductive pattern.

2. The conductive pattern of claim 1 , wherein the second ratio is 80% or more.

3. The conductive pattern of claim 1 , wherein the plurality of nano structures of at least one of the unit conductive pattern or the connection portion comprises a silver (Ag) material.

4. The conductive pattern of claim 1 , wherein the plurality of nano structures of at least one of the unit conductive pattern or the connection portion is formed by electro-spinning.

5. The conductive pattern of claim 1 , wherein the matrix includes a conductive material.

6. The conductive pattern of claim 1 , wherein the matrix prevents oxidation of the plurality of nano structures of the unit conductive pattern.

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Song Byung Hoon
• Keum Dong Ki
• Park Dae Chul
• Song Sun Young
• Jang Hwansil

Classifications

• H05K2201/026

  Nanotubes or nanowires · CPC title

• H01B1/02

  mainly consisting of metals or alloys · CPC title

• H05K2201/10151

  Sensor · CPC title

• H05K3/06

  the conductive material being removed chemically or electrolytically, e.g. by photo-etch process {(semi-additive methods H05K3/108)} · CPC title

• H01B1/22

  the conductive material comprising metals or alloys · CPC title