Conductive pattern

Patent metadata

Field	Value
Publication number	US-11360612-B2
Application number	US-202017109014-A
Country	US
Kind code	B2
Filing date	Dec 1, 2020
Priority date	Feb 10, 2015
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

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, comprising:
at least two unit conductive patterns, wherein the unit conductive patterns include a plurality of nano structures having both ends, and a first ratio of a number of the plurality of nano structures of the unit conductive patterns in which both ends are in contact with side surfaces of the unit conductive patterns to a total number of the plurality of nano structures of the unit conductive patterns is 70% or more; and
a connection portion connecting the at least two unit conductive patterns,
wherein a width of the connection portion is 50% to 60% of a width of the unit conductive patterns,
wherein the connection portion includes a plurality of nano structures having both ends, and
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.

2. The conductive pattern of claim 1 , further comprising a matrix containing the plurality of nano structures of the unit conductive patterns.

3. The conductive pattern of claim 2 , wherein the matrix is formed to extend continuously over the unit conductive patterns and the connection portion.

4. The conductive pattern of claim 2 , wherein an end of at least a portion of the plurality of nano structures of the unit conductive patterns in contact with a side surface of the unit conductive patterns is exposed to an outside of the matrix.

5. The conductive pattern of claim 2 , wherein the matrix includes a conductive material.

6. The conductive pattern of claim 2 , wherein the matrix prevents oxidation of the plurality of nano structures of the unit conductive patterns.

7. The conductive pattern of claim 2 , wherein the plurality of nano structures of the unit conductive patterns is dispersed inside the matrix.

8. The conductive pattern of claim 1 ,
wherein the plurality of nano structures of the unit conductive patterns includes a first nano structure and a second nano structure,
wherein an end of the first nano structure and an end of the second nano structure are in contact with the same side surface of the unit conductive patterns, and
wherein the first nano structure and the second nano structure are electrically connected directly to each other inside the unit conductive patterns.

9. The conductive pattern of claim 1 , wherein the plurality of nano structures of the unit conductive patterns is formed in a cylindrical shape.

10. The conductive pattern of claim 1 , wherein the plurality of nano structures of the unit conductive patterns comprises a silver (Ag) material.

11. The conductive pattern of claim 1 , wherein the plurality of nano structures of the unit conductive patterns is formed by electro-spinning.

12. The conductive pattern of claim 1 , wherein at least a portion of the plurality of nano structures of the unit conductive patterns in which both ends are in contact with side surfaces of the unit conductive patterns has a curved shape and intersects a virtual straight line between the both ends at one or more points other than the both ends.

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

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

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

Classifications

• H01B1/02

  mainly consisting of metals or alloys · CPC title

• H05K2201/09727

  Varying width along a single conductor; Conductors or pads having different widths · CPC title

• H05K3/1241

  by ink-jet printing or drawing by dispensing · 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

• H05K1/0393

  Flexible materials (H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups) · CPC title