Near-infrared shield and display front plate

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

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Details

C428S688000, C428S690000, C430S269000, C430S270100

Reexamination Certificate

active

07662490

ABSTRACT:
A near-infrared shield according to the present invention includes a base and a near-infrared absorption layer disposed on one main surface of the base. When the near-infrared shield is irradiated from the near-infrared absorption layer side with xenon light having a wavelength of 380 nm to 1200 nm at an illuminance of 60 W/m2(an energy density in a range of 300 nm to 400 nm) for 16 hours under a condition of BPT of 63° C. and a relative humidity of 50%, chromaticity changes Δx, Δy of transmitted light, which are shown in a chromaticity diagram of a CIE1931XYZ color system, are 0.005 or less respectively. The near-infrared shield has an excellent near-infrared shielding property and an excellent light resistance, and its near-infrared absorptivity does not deteriorate even after long-term storage.

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Hanaoka et al., “Characteristics of an antireflection film and optimum design/film . . . ”, 1stEd., second printing at Technical Information Institute Co., Ltd., Feb. 5, 2002, p. 184 with its partial translation.
English Language Translation of Japan, publication No. 2004-285314-A, publication dated Oct. 14, 2004.
English Language Translation of Japan, publication No. 2003-327865-A, publication dated Nov. 19, 2003.

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