Invention Grant
- Patent Title: Light-emitting element, method for manufacturing same, and light emission method
-
Application No.: US15773182Application Date: 2016-11-04
-
Publication No.: US10411211B2Publication Date: 2019-09-10
- Inventor: Yuto Tsukamoto , Katsuhiro Kikuchi , Shinichi Kawato , Manabu Niboshi , Eiji Koike , Asae Ito
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- Priority: JP2015-220754 20151110
- International Application: PCT/JP2016/082811 WO 20161104
- International Announcement: WO2017/082169 WO 20170518
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/56
Abstract:
An organic EL element (10) includes a first light-emitting layer (33a) having the shortest emission peak wavelength of a light-emitting layer (33) and containing a host material and a TTF material or at least the TTF material, a second light-emitting layer (33b) containing at least a TADF material, a third light-emitting layer (33c) having the longest emission peak wavelength of the light-emitting layer (33) and containing at least fluorescent material. The excited triplet level of the TTF material is lower than the excited triplet level of the TADF material.
Public/Granted literature
- US20180323396A1 LIGHT-EMITTING ELEMENT, METHOD FOR MANUFACTURING SAME, AND LIGHT EMISSION METHOD Public/Granted day:2018-11-08
Information query
IPC分类:
