公开(公告)号：US20200381628A1

公开(公告)日：2020-12-03

申请号：US16488500

申请日：2018-02-23

Applicant: Idemitsu Kosan Co., Ltd.

Inventor： Yumiko MIZUKI ,  Francois RIME ,  Natalia CHEBOTAREVA ,  Hideaki NAGASHIMA

IPC: H01L51/00 ,  C07D491/048 ,  C09K11/06

Abstract: The present invention relates to a compound of formula (I), wherein R1, R2, R3 and R4 are each independently hydrogen or Ra, with proviso that a pair of two substituents selected from R1 and R2, R2 and R3, and R3 and R4 is linked to one another and forms a group of formula (II); a material for an organic electroluminescence device comprising at least one compound of formula (I); an organic electroluminescence device which comprises an organic thin film layer be-tween an anode and a cathode, wherein the organic thin film layer comprises one or more layers and comprises a light emitting layer, and at least one layer of the organic thin film layer comprises at least one compound of formula (I); and an electronic equipment comprising the inventive organic electroluminescence device.

公开(公告)号：US20220109115A1

公开(公告)日：2022-04-07

申请号：US17271871

申请日：2019-08-29

Applicant: Idemitsu Kosan Co.,Ltd.

Inventor： Yumiko MIZUKI ,  Michelle GROARKE ,  Pierre BOUFFLET ,  Natalia CHEBOTAREVA ,  Francois RIME

IPC: H01L51/00 ,  C07D493/04 ,  C09K11/06

Abstract: Specific polycyclic compounds of the general formula (I) and a process for their preparation, a material for an organic electroluminescence device comprising said compound, an organic electroluminescence device comprising said compound, an electronic equipment comprising said organic electroluminescence device, and the use of compounds according to general formula (I) in an organic electroluminescence device.