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Patent Searching and Data


Title:
WAVELENGTH CONVERSION FILM, WAVELENGTH CONVERSION FILM FORMING COMPOSITION, AND CLUSTER-CONTAINING QUANTUM DOT PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/015005
Kind Code:
A1
Abstract:
The objective of the invention is to provide a wavelength conversion film demonstrating a high optical density, a wavelength conversion film forming composition used suitably for forming the wavelength conversion film, and a production method for a cluster-containing quantum dot that may be applied suitably to the wavelength conversion film and the wavelength conversion film forming composition. In this invention, for a wavelength conversion film containing a quantum dot converting blue light into red light or green light, the light beam transmittance of the wavelength conversion film at 450 nm wavelength is set to 40% or lower, the light beam transmittance of the wavelength conversion film at 650 nm wavelength is set to 90% or higher if the hue of the light beam after the wavelength conversion is red, and the light beam transmittance of the wavelength conversion film at 550 nm wavelength is set to 90% or higher if the hue of the light beam after the wavelength conversion is green.

Inventors:
LIAO YUEHCHUN (JP)
SESHIMO TAKEHIRO (JP)
NODA KUNIHIRO (JP)
Application Number:
PCT/JP2020/027021
Publication Date:
January 28, 2021
Filing Date:
July 10, 2020
Export Citation:
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Assignee:
TOKYO OHKA KOGYO CO LTD (JP)
International Classes:
C09K11/08; B82Y20/00; B82Y40/00; C09K11/56; C09K11/70; G02B5/20
Domestic Patent References:
WO2018114982A12018-06-28
Foreign References:
US20190157354A12019-05-23
JPH09115668A1997-05-02
KR20180092671A2018-08-20
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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