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1. (WO2018123805) LIGHT EMITTING DEVICE AND IMAGE DISPLAY DEVICE USING SAME

Pub. No.:    WO/2018/123805    International Application No.:    PCT/JP2017/045920
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 22 00:59:59 CET 2017
IPC: H05B 33/12
C09K 11/06
C09K 11/54
C09K 11/56
C09K 11/70
G02B 5/20
G09F 9/30
H01L 27/32
H01L 51/50
H05B 33/02
H05B 33/14
Applicants: DIC CORPORATION
DIC株式会社
Inventors: UMEZU Yasuo
梅津 安男
YAMAGUCHI Hidehiko
山口 英彦
AOKI Yoshio
青木 良夫
OGAWA Shinji
小川 真治
Title: LIGHT EMITTING DEVICE AND IMAGE DISPLAY DEVICE USING SAME
Abstract:
[Problem] The present invention addresses the problem of providing an image display device with which it is possible to suppress or prevent deterioration of a photoconversion layer, while achieving a high light emission efficiency as well as high color reproducibility. [Solution] The present invention is a light emitting device characterized by being provided with: a pair of electrodes; an electroluminescent layer provided between the first electrode and the second electrode; and a photoconversion layer that is formed of a plurality of pixels and that converts light, which is emitted by the electroluminescent layer and has a blue light emission spectrum, to light having a different wavelength, wherein the photoconversion layer is provided with pixels of the three primary colors, namely, red (R), green (G), and blue (B), and contains light emitting nanocrystals that have a light emission spectrum in one of red (R), green (G), and blue (B) colors, due to the light coming from the electroluminescent layer that has been made incident on the pixels of at least one of the three primary colors.