IP Library Granted Patent US 10,282,001
Granted Patent B2
US 10,282,001 · App. 15/247,415 · Granted May 7, 2019

Conductive film and touch panel including the same

Inventors: Yuhee Kim (Seoul, KR); Yangwook Hur (Seoul, KR); Jinyoung Choi (Seoul, KR); Munsu Lee (Seoul, KR)
Assignee: LG Electronics Inc.
G06F3/041G06F3/044H05K1/097G06F2203/04103G06F2203/04112H05K2201/026
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Quick Facts
Patent No.
US 10,282,001
App. No.
15/247,415
Granted
May 7, 2019
Kind
B2
Abstract

A conductive film may be provided that includes a base member, a first hard coating layer formed on a surface of the base member, and a conductive layer formed on the first hard coating layer. The conductive layer may include conductors composed of a nano-material forming a network structure.

Claims (40)

1. A conductive film comprising:

a base member;

a first hard coating layer on a first surface of the base member;

a conductive layer directly on the first hard coating layer,

the conductive layer includes a plurality of nano-wires to form a network structure;

and an over-coating layer on the conductive layer to cover the nano-wires of the conductive layer, wherein some of the plurality of nano-wires are protruding from an inner region of the conductive layer and are inserted into an inner region of the over-coating layer,

wherein the conductive film includes a conductive region and a non-conductive region,

and the non-conductive region includes a residual portion having a void based on removal of only the nano-wires in the conductive layer.

2. The conductive film according to claim 1 , wherein the conductive layer includes the residual portion surrounding the nano-wires.

3. The conductive film according to claim 2 , wherein nano-wires have a thickness greater than the residual portion and extending or protruding to outside of the residual portion, and

the over-coating layer covers the conductors extending to the outside of the residual portion.

4. The conductive film according to claim 1 , further comprising at least one of a second hard coating layer on a second surface of the base member.

5. The conductive film according to claim 1 , further comprising a primer layer between the base member and the first hard coating layer.

6. The conductive film according to claim 1 , wherein the first hard coating layer includes an acrylic material.

7. The conductive film according to claim 1 , wherein a thickness of the first hard coating layer is less than a thickness of the base member, and the thickness of the first hard coating layer is greater than a thickness of the conductive layer.

8. The conductive film according to claim 1 , wherein the conductive film is provided such that the conductive region includes the conductive layer and the over-coating layer, and the non-conductive region is provided without the conductive layer and the over-coating layer.

9. A touch panel comprising:

a first conductive film comprising a base member,

a primer layer on a first surface of the base member,

a first hard coating layer on the primer layer,

a first conductive layer directly on the first hard coating layer,

and an over-coating layer on the first conductive layer,

the first conductive layer includes a plurality of nano-wires to form a network structure,

and the over-coating layer to cover the nano-wires of the first conductive layer;

a second conductive layer constituting a second electrode that is different from the first conductive layer;

and a cover substrate for covering the first conductive film and the second conductive layer,

wherein the cover substrate being a separate member from the first conductive film, wherein the first conductive layer includes a conductive region,

and the conductive region of the first conductive layer includes a conductive portion in which the nano-wires are provided and a non-conductive portion in which the nano-wires are not provided,

wherein some of the plurality of nano-wires are protruding from an inner region of the first conductive layer and are inserted into an inner region of the over-coating layer,

wherein the first conductive film includes a conductive region and a non-conductive region,

and the non-conductive region includes a residual portion having a void based on removal of only the nano-wires in the first conductive layer.

10. The touch panel according to claim 9 , wherein the first conductive film is provided such that the conductive region includes the first conductive layer and the over-coating layer, and the non-conductive region is provided without the first conductive layer and the over-coating layer.

11. The touch panel according to claim 10 , further comprising:

at least one transparent adhesion layer positioned at the non-conductive region.

12. The touch panel according to claim 9 , wherein the first conductive layer includes the residual portion surrounding the nano-wires.

13. The touch panel according to claim 12 , wherein nano-wires have a thickness greater than the residual portion and extending or protruding to outside of the residual portion, and

the over-coating layer covers the nano-wires extending to the outside of the residual portion.

14. The touch panel according to claim 9 , further comprising at least one of a second hard coating layer on a second surface of the base member.

15. The touch panel according to claim 9 , wherein the first hard coating layer includes an acrylic material.

16. The touch panel according to claim 9 , wherein a thickness of the first hard coating layer is less than a thickness of the base member, and the thickness of the first hard coating layer is greater than a thickness of the first conductive layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2022
From: LG ELECTRONICS INC.
To: LG CHEM, LTD.
Reel/Frame 058952/0867 →
Priority Claims (2)
KR 10-2013-0071082 · Jun 20, 2013 · national
KR 10-2013-0083023 · Jul 15, 2013 · national
Continuity (2)
Continuation 14309481 · Jun 19, 2014
Related Publication 20170003773A1 · Jan 5, 2017