Title:
LIGHT-EMITTING DEVICE, LIGHT-EMITTING DEVICE, ELECTRONIC APPARATUS, AND ILLUMINATION DEVICE
Document Type and Number:
Japanese Patent JP2022044036
Kind Code:
A
Abstract:
To provide a light-emitting device with high luminous efficiency and a low driving voltage.SOLUTION: An organic compound has an arylamine structure, and includes a deposition film whose normal light refractive index to light with a wavelength of 458 nm is 1.50 or more and 1.75 or less and whose birefringence Δn to light with a wavelength of 458 nm is 0 or more and 0.008 or less. Alternatively, the deposition film has an orientation order parameter of -0.07 or more and 0.00 or less with respect to the light with a wavelength of an absorption peak at the longest wavelength in an absorption spectrum.SELECTED DRAWING: Figure 1
Inventors:
OSAWA NOBUHARU
SEO TETSUSHI
WATABE GOKICHI
UEDA AIRI
KUBOTA TOMOHIRO
HIRAHARA TAKASHI
SEO TETSUSHI
WATABE GOKICHI
UEDA AIRI
KUBOTA TOMOHIRO
HIRAHARA TAKASHI
Application Number:
JP2021144213A
Publication Date:
March 16, 2022
Filing Date:
September 03, 2021
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H01L51/50; C07C15/20; C07C211/61; C07D209/86; C07D215/26; C07D235/08; C07D251/24; C07D307/91; C07D333/76; C07D401/10; C07D493/04; C07F1/00