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1. (WO2016052625) BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE, WAVELENGTH CONVERSION MEMBER, AND PHOTOCURABLE COMPOSITION

Pub. No.:    WO/2016/052625    International Application No.:    PCT/JP2015/077754
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Thu Oct 01 01:59:59 CEST 2015
IPC: F21S 2/00
F21V 9/16
G02F 1/13357
H01L 33/50
F21Y 115/10
Applicants: FUJIFILM CORPORATION
富士フイルム株式会社
Inventors: OBA Tatsuya
大場 達也
YAMADA Naoyoshi
山田 直良
UEKI Keigo
植木 啓吾
GOTO Ryoji
後藤 亮司
YONEMOTO Takashi
米本 隆
Title: BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE, WAVELENGTH CONVERSION MEMBER, AND PHOTOCURABLE COMPOSITION
Abstract:
One embodiment of the present invention relates to a backlight unit which comprises a light source and a wavelength conversion member that is positioned on the optical path of the light discharged from the light source, and wherein: the wavelength conversion member comprises a wavelength conversion layer that contains quantum dots in a matrix, said quantum dots producing fluorescence when excited by excitation light; the wavelength conversion layer is a photocured layer that is obtained by curing a photocurable composition by means of light irradiation; the photocurable composition contains the quantum dots, a polymerizable compound that contains at least an alicyclic epoxy compound, and a photopolymerization initiator; and the loss rate of the light discharged from the light source in the matrix of the wavelength conversion layer is 3% or less in terms of a thickness of 60 μm. Another embodiment of the present invention relates to a liquid crystal display device, a wavelength conversion member or a photocurable composition.