赤外線吸収フィルタ

Ir absorbing filter

Abstract

(57)【要約】 【課題】本発明は、電磁波及び近赤外線を吸収し、可視 領域の光透過性が高く、且つ、可視領域に特定の吸収を 持つことがなく、更に、加工性及び生産性の良好で環境 安定性の良好な近赤外線吸収フィルタを提供するもので ある。 【解決手段】波長800nm から1100nmの近赤外線領域の透 過率が30%以下である事を特徴とし、開口率が50%以 上の金属メッシュ導電層を有している事を特徴とする赤 外線吸収フィルタ。
PROBLEM TO BE SOLVED: To obtain a filter having high transmittance of light in a visible region, having no large absorption of a specified wavelength and having improved workability and productivity by specifying the transmittance of an IR absorbing layer and forming a metal mesh conductive layer having a specified or larger opening rate. SOLUTION: This IR absorbing filter has an IR absorbing layer on at least one surface of a transparent polymer film and has a metal mesh conductive layer having ≥50% opening rate on the same or opposite surface of the IR absorbing layer. The IR absorbing layer has ≤30% transmittance in a near IR ray region of 800 to 1100 nm wavelength, ≤10% difference between the max. and min. transmittance in the visible region of 450 to 650 nm wavelength, and ≥50% transmittance at 550 nm wavelength. By forming the metal mesh conductive layer, harmful electromagnetic waves emitted from a display can be removed. The dye to be used to satisfy this characteristics preferably contains two kinds of compds. selected from diimonium salt compds., fluorine- contg. phthalocyanine compds. and nickel complexes. COPYRIGHT: (C)2000,JPO

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    US-7727578-B2June 01, 2010Honeywell International Inc.Transparent conductors and methods for fabricating transparent conductors
    US-7960027-B2June 14, 2011Honeywell International Inc.Transparent conductors and methods for fabricating transparent conductors