Article including sheet-like electromagnetic shielding structure

An electromagnetic shielding and structural technology, applied in the direction of magnetic/electric field shielding, shielding, shielding materials, etc., can solve problems such as high cost and affecting characteristics

Inactive Publication Date: 2007-10-31
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to impart conductivity, it is necessary to mix a large amount of conductive particles, and there is a problem of high cost.
In addition, other characteristics are affected due to the mixing of a large amount of conductive particles
[0005] In addition, since the above-mentioned polymer molded article having electromagnetic shielding properties has a configuration in which short fiber groups of conductive fibers are gathered on the polymer base material by using a conductive adhesive layer or the like, although the electromagnetic shielding properties are improved, Can't say this improvement is enough

Method used

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  • Article including sheet-like electromagnetic shielding structure
  • Article including sheet-like electromagnetic shielding structure
  • Article including sheet-like electromagnetic shielding structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0399] A hand-held phone including a sheet-like electromagnetic shielding structure was prepared by pressure-sensitively bonding the sheet-like electromagnetic shielding structure A1 prepared in Production Example 1 of the sheet-like electromagnetic shielding structure on the inner surface of the hand-held phone casing, using its surface fully exposed The electromagnetically conductive or absorbing pressure-sensitive adhesive layer (ie, the electromagnetically conductive or absorbing pressure-sensitive adhesive layer on which the electromagnetically conductive or absorbing fiber fine pile is not formed).

Embodiment 2

[0401] A handy phone including a sheet-like electromagnetic shielding structure was prepared by pressure-sensitively bonding the sheet-like electromagnetic shielding structure A2 prepared in Production Example 2 of the sheet-like electromagnetic shielding structure to the back of the liquid crystal display module unit inside the handy phone, using its An electromagnetically conductive or absorbing pressure sensitive adhesive layer with a fully exposed surface (ie, a layer of electromagnetically conducting or absorbing pressure sensitive adhesive on which no electromagnetically conductive or absorbing fiber fluff is formed).

Embodiment 3

[0403] A handy phone including a sheet-like electromagnetic shielding structure was prepared by pressure-sensitively bonding the sheet-like electromagnetic shielding structure A3 prepared in Production Example 3 of the sheet-like electromagnetic shielding structure to the back of the circuit board inside the handy phone, using non-electromagnetic conduction or absorbent pressure sensitive adhesive layer.

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PUM

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Abstract

The present invention relates to an article to which a characteristic of shielding electromagnetic waves is imparted, which comprises at least a sheet-like electromagnetic shielding structure, the sheet-like electromagnetic shielding structure comprising a thin layer-like substrate; and a fiber convex structure section having a characteristic of conducting or absorbing electromagnetic waves, in which the said fiber convex structure section is formed at least partially on the thin layer-like substrate in such a form that at least a part of a fiber thereof is positioned outward from the surface of the thin layer-like substrate. As the article including the sheet-like electromagnetic shielding structure, an electronic device, an electronic circuit board, garment, an architectural structure, a construction material, or a transport equipped with an engine is suitable.

Description

technical field [0001] The present invention relates to products containing a sheet-shaped electromagnetic shielding structure, and more particularly, the present invention relates to a product containing a sheet-shaped electromagnetic shielding structure such as electronic devices, circuit boards, clothing, building structures, building materials, and transportation devices equipped with engines, which are given Electromagnetic wave shielding properties. Background technique [0002] In order to prevent the failure of electronic devices or circuit boards due to the occurrence of electromagnetic waves, protect the human body from electromagnetic waves, prevent information from leaking outside the building structure, prevent irregular reflection of electromagnetic waves inside the building structure, or prevent transportation devices (especially aircraft) Various electromagnetic shielding materials (including electromagnetic absorbers) have been proposed. In various connecto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00G12B17/02
CPCH05K9/009H05K9/0001H05K9/00
Inventor 新野卓哉芋野昌三佐野正典
Owner NITTO DENKO CORP
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