Title:
ORGANIC LIGHT-EMITTING DEVICE, DISPLAY DEVICE, ELECTRONIC APPARATUS, ON-VEHICLE DISPLAY AND VEHICLE
Document Type and Number:
Japanese Patent JP2022027446
Kind Code:
A
Abstract:
To provide an organic light-emitting device, a display device, an electronic apparatus and an on-vehicle display having a long service life under a high-temperature environment, and to provide a vehicle using the on-vehicle display.SOLUTION: The organic light-emitting device includes: an anode electrode and a cathode electrode arranged facing each other; a light-emitting layer arranged between the anode electrode and the cathode electrode; and a hole transport layer arranged between the anode electrode and the light-emitting layer in contact with the light-emitting layer. The hole transport layer has a HOMO level 12bH higher than a HOMO level 13H of the light-emitting layer. The difference ΔE1 between the HOMO level 12bH of the hole transport layer and the HOMO level 13H of the light-emitting layer is 0.32 eV or less.SELECTED DRAWING: Figure 2
Inventors:
HAMADA KEITA
HANASHIMA HIROSHI
MORI SHIGERU
HANASHIMA HIROSHI
MORI SHIGERU
Application Number:
JP2021068930A
Publication Date:
February 10, 2022
Filing Date:
April 15, 2021
Export Citation:
Assignee:
TIANMA MICROELECTRONICS CO LTD
International Classes:
H01L51/50; H01L27/32
Attorney, Agent or Firm:
Kimura Mitsuru
Goro Saito
Yasushi Morikawa
Hiromi Yamamoto
Hiroyoshi Sato
Yuuki Natsuki
Narumi Nakamura
Goro Saito
Yasushi Morikawa
Hiromi Yamamoto
Hiroyoshi Sato
Yuuki Natsuki
Narumi Nakamura