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Conductive film and conductive film roll, electronic paper, touch panel, and flat panel display using same

一种导电性薄膜、导电性金属的技术，应用在绝缘载体上的导电层、仪器、非线性光学等方向，能够解决导电性降低、金属细线剥离等问题

Active Publication Date: 2021-03-16
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] On the other hand, a conductive film using thin metal wires has a problem that the thin metal wires tend to peel off from the transparent substrate due to deformation such as bending, curling, and bending during handling and installation of equipment, and the conductivity decreases.

Method used

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  • Conductive film and conductive film roll, electronic paper, touch panel, and flat panel display using same
  • Conductive film and conductive film roll, electronic paper, touch panel, and flat panel display using same
  • Conductive film and conductive film roll, electronic paper, touch panel, and flat panel display using same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0114] An object of the first embodiment is to provide a conductive film, a conductive film roll, electronic paper, a touch panel, and a flat panel display that sufficiently maintain transparency and are excellent in both conductivity and flexibility.

[0115] [First Embodiment: Conductive Film]

[0116] The conductive film according to the first embodiment is a conductive film having a transparent substrate and a conductive portion including a metal thin wire pattern arranged on one or both surfaces of the transparent substrate. The thin metal wire pattern is composed of thin metal wires, the thin metal wires contain conductive metal atoms M and silicon atoms Si, and in the STEM-EDX analysis of the cross-section of the thin metal wires perpendicular to the direction in which the thin metal wires extend, the When the maximum thickness of the thin metal wire is expressed as T, the atomic % ratio Si / M of the silicon atom Si to the conductive metal atom M in the thickness region ...

no. 2 approach

[0198] An object of the second embodiment is to provide a conductive film exhibiting more excellent transparency, and a conductive film roll, electronic paper, touch panel, and flat panel display using the same.

[0199] [Second Embodiment: Conductive Film]

[0200] The conductive film according to the second embodiment is characterized in that it is a conductive film having a transparent base material and a conductive portion including a thin metal wire pattern arranged on one or both sides of the transparent base material, and the thin metal wire pattern is composed of The thin metal wire is composed of conductive metal atoms M and oxygen atoms O. In the STEM-EDX analysis of the cross section of the thin metal wire perpendicular to the extending direction of the thin metal wire, the fine metal wire When the thickness of is denoted as T, the atomic % ratio O / M of the aforementioned oxygen atoms O to the aforementioned conductive metal atoms M in the thickness region from 0.10...

no. 3 approach

[0300] An object of the third embodiment is to provide a conductive film having both high conductivity and high adhesion between a transparent substrate and thin metal wires, and a conductive film roll, electronic paper, touch panel, and flat panel display using the same.

[0301] [Third Embodiment: Conductive Film]

[0302] The conductive film according to the third embodiment is characterized in that it has a transparent base material and a conductive portion including a thin metal wire pattern arranged on one or both sides of the transparent base material. The thin metal wire pattern is composed of thin metal wires containing conductive metal atoms M and carbon atoms C, in the STEM-EDX analysis of the cross section of the thin metal wires perpendicular to the direction in which the thin metal wires extend , when the thickness of the aforementioned thin metal wire is denoted as T, the atomic % ratio C / M in the thickness range from 0.10T to 0.25T from the interface of the thi...

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Abstract

The purpose of the present invention is to provide a conductive film in which at least the mechanical properties, electrical characteristics, or optical characteristics are further enhanced while still benefiting from enhanced transparency as a result of fine metal wires being made thinner, as well as a conductive film roll, electronic paper, a touch panel, and a flat panel display using the same.A conductive film according to the present invention has a transparent base material and a conductive section comprising a fine metal wire pattern provided on one surface or both surfaces of the transparent base material. The fine metal wire pattern is composed of fine metal wires. The fine metal wires contain at least silicon atoms Si, oxygen atoms O, or carbon atoms C, in addition to conductivemetal atoms M. In STEM-EDX analysis of a cross section of each of the fine metal wires, said cross section being orthogonal to the direction in which the fine metal wire extends, if the maximum thickness of the fine metal wire is T, the fine metal wire contains, in a prescribed ratio, at least the silicon atoms Si, the oxygen atoms O, or the carbon atoms C in the thickness direction.

Description

technical field [0001] The present invention relates to a conductive film, a conductive film roll using the same, electronic paper, a touch panel, and a flat panel display. Background technique [0002] Conventionally, transparent conductive films using indium tin oxide (hereinafter also referred to as "ITO") have been used in electronic devices such as electronic paper, touch panels, and flat panel displays. In the future, increasing the area, improving responsiveness, and increasing flexibility will be important for further increasing the added value of electronic devices. Therefore, it is required for the conductive thin film used therein to maintain high transmittance while improving conductivity and flexibility. [0003] ITO materials have inherently low electrical conductivity. Therefore, in order to express high electrical conductivity, it is necessary to increase the thickness of the film, and the transmittance decreases accordingly. In addition, cracks are likely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14B32B3/24B32B15/08G06F3/041G06F3/044G06F3/045
CPCH01B5/14G06F3/044G06F3/0446G02F1/167G02F1/1676G06F2203/04112G06F2203/04102G06F2203/04103G02F1/16757G06F3/0445
Inventor 上城武司小松和磨池田彬飞田空杉本哲郎
Owner ASAHI KASEI KK
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