Conductive structure and manufacturing method therefor

Patent metadata

Field	Value
Publication number	US-9983705-B2
Application number	US-201415035704-A
Country	US
Kind code	B2
Filing date	Nov 20, 2014
Priority date	Nov 20, 2013
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

The present specification provides a conductive structure body and a method for manufacturing the same.

First claim

The invention claimed is:

1. A conductive structure body comprising:
a substrate;
a conductive layer provided on the substrate; and
a darkening layer provided on at least one surface of the conductive layer,
wherein the darkening layer includes a copper nitrate represented by Cu x O y N z , and in the copper nitrate, x means an atomic content ratio of Cu, y means an atomic content ratio of O, z means an atomic content ratio of N, and x>0, y>0, z>0, and [y/(x−3z)]<0.1,
wherein the copper nitrate has a y+z value of 0.16 or less,
wherein the darkening layer has an average light reflectivity variation of 20% or less in a wavelength range of 380 nm to 780 nm after 120 hours pass by under an atmosphere of 85° C. and 85 RH, and
wherein a thickness of the darkening layer is greater than or equal to 0.1 nm and less than or equal to 60 nm.

2. The conductive structure body of claim 1 , wherein an extinction coefficient k of the darkening layer is greater than or equal to 0.2 and less than or equal to 1.5 in light having a wavelength region of greater than or equal to 380 nm and less than or equal to 780 nm.

3. The conductive structure body of claim 1 , wherein a refractive index n of the darkening layer is greater than or equal to 2 and less than or equal to 3.3 in light having a wavelength region of greater than or equal to 380 nm and less than or equal to 780 nm.

4. The conductive structure body of claim 1 , wherein a total reflectivity of the conductive structure body is 20% or less.

5. The conductive structure body of claim 1 , wherein a thickness of the conductive layer is from 0.01 μm to 10 μm.

6. The conductive structure body of claim 1 , wherein the conductive layer is a patterned conductive pattern layer, and the darkening layer is a patterned darkening pattern layer.

7. The conductive structure body of claim 6 , wherein a pattern line width in the conductive pattern layer is 10 μm or less.

8. The conductive structure body of claim 6 , wherein a surface resistance of the conductive structure body is greater than or equal to 1Ω/□ and less than or equal to 300Ω/□.

9. The conductive structure body of claim 1 , wherein the conductive layer includes one, two or more materials selected from the group consisting of metals, metal alloys, metal oxides and metal nitrides, and the material has specific resistance of 1×10 −6 Ω·cm to 30×10 −6 Ω·cm.

10. The conductive structure body of claim 1 , wherein a structure of the conductive structure body is selected from the group consisting of a structure of a substrate/a darkening layer/a conductive layer, a structure of a substrate/a conductive layer/a darkening layer, a structure of a substrate/a darkening layer/a conductive layer/a darkening layer, a structure of a substrate/a conductive layer/a darkening layer/a conductive layer, a structure of a substrate/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer, a structure of a substrate/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer, a structure of a substrate/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer, a structure of a substrate/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer, a structure of a substrate/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer, and a structure of a substrate/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer/a darkening layer/a conductive layer.

11. A touch screen panel comprising the conductive structure body of claim 1 .

12. A display device comprising the conductive structure body of claim 1 .

13. A solar cell comprising the conductive structure body of claim 1 .

14. A method for manufacturing a conductive structure body comprising:
forming a conductive layer on a substrate; and
forming a darkening layer before, after, or both before and after forming the conductive layer,
wherein the darkening layer includes a copper nitrate represented by Cu x O y N z , and in the copper nitrate, x means an atomic content ratio of Cu, y means an atomic content ratio of O, z means an atomic content ratio of N, and x>0, y>0, z>0, and [y/(x−3z)]<0.1,
wherein the copper nitrate has a y+z value of 0.16 or less,
wherein the darkening layer has an average light reflectivity variation of 20% or less in a wavelength range of 380 nm to 780 nm after 120 hours pass by under an atmosphere of 85° C. and 85 RH, and
wherein a thickness of the darkening layer is greater than or equal to 0.1 nm and less than or equal to 60 nm.

15. The method for manufacturing a conductive structure body of claim 14 , further comprising separately or simultaneously patterning the conductive layer and the darkening layer.

16. The method for manufacturing a conductive structure body of claim 14 , wherein the step of forming a darkening layer uses a reactive sputtering method.

17. A method for manufacturing a conductive structure body comprising:
forming a conductive pattern on a substrate; and
forming a darkening pattern before, after, or both before and after forming the conductive pattern,
wherein the darkening pattern includes a copper nitrate represented by Cu x O y N z , and in the copper nitrate, x means an atomic content ratio of Cu, y means an atomic content ratio of O, z means an atomic content ratio of N, and x>0, y>0, z>0, and [y/(x−3z)]<0.1,
wherein the copper nitrate has a y+z value of 0.16 or less,
wherein the darkening layer has an average light reflectivity variation of 20% or less in a wavelength range of 380 nm to 780 nm after 120 hours pass by under an atmosphere of 85° C. and 85 RH, and
wherein a thickness of the darkening layer is greater than or equal to 0.1 nm and less than or equal to 60 nm.

Assignees

• Lg Chemical Ltd

Inventors

• Lim Jin Hyong
• Jang Song Ho
• Lee Ilha
• Kim Ki-Hwan
• Kim Yong Chan
• Yoon Junghwan
• Park Chan Hyoung

Classifications

• G06F2203/04103

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

• H05K3/10

  in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern · CPC title

• H01L31/022425

  Electricity · mapped topic

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• H01L31/02167

  Electricity · mapped topic