公开(公告)号：US20230085328A1

公开(公告)日：2023-03-16

申请号：US17859480

申请日：2022-07-07

Applicant: IDEMITSU KOSAN CO.,LTD. ,  National University Corporation Tokai National Higher Education and Research System

Inventor： Masato MITANI ,  Keita SEDA ,  Taro YAMAKI ,  Shota TANAKA ,  Tsukasa SAWATO ,  Masatoshi SAITO ,  Hiroaki ITOI ,  Tasuku HAKETA ,  Kei YOSHIDA ,  Sayaka MIZUTANI ,  Kenichiro ITAMI ,  Kei MURAKAMI ,  Satoshi MATSUBARA ,  Yoshito KOGA

IPC: H01L51/00 ,  C07D251/24 ,  C09K11/06 ,  C07C13/62 ,  C07C211/54

Abstract: A compound represented by the following formula (1A) or (1B): (the symbols in the formulae (1A) and (1B) have the same meaning as defined in the specification), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.

公开(公告)号：US20230045583A1

公开(公告)日：2023-02-09

申请号：US17849574

申请日：2022-06-24

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Yoshinori AOYAMA ,  Kazuki NISHIMURA ,  Sayaka MIZUTANI ,  Masato MITANI ,  Ryota TAKAHASHI

IPC: H01L51/00

Abstract: An organic electroluminescence device comprising: a cathode; an anode; an emitting layer disposed between the cathode and the anode; and a first layer disposed between the emitting layer and the cathode, wherein the emitting layer comprises a host compound, the first layer comprises a first compound and a second compound, and the three compounds are in a relationship satisfying the following Conditions 1 and 2: (Condition 1) the electron affinity AfH of the host compound and the electron affinity AfETA of the first compound satisfy the following expressions (1-1) and (1-2): AfH AfETB  (2-1) |AfH−AfETB|≤0.10  (2-2).

公开(公告)号：US20220289717A1

公开(公告)日：2022-09-15

申请号：US17573406

申请日：2022-01-11

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Masato MITANI ,  Masatoshi SAITO ,  Kei YOSHIDA ,  Tomokatsu KUSHIDA ,  Sayaka MIZUTANI

IPC: C07D403/10 ,  H01L51/00 ,  C07D405/14 ,  C07D409/14 ,  C07D403/14 ,  C07D401/14 ,  C07D401/10 ,  C07D519/00

Abstract: Provided is a compound represented by a formula (1). In the formula (1): X1 to X5 each independently represent a nitrogen atom or CR10; two or more of X1 to X5 are nitrogen atoms; Y1 to Y5 each independently represent a nitrogen atom or CR20; one or more of Y1 to Y5 are nitrogen atoms; R10, R20, and R5 to R7 forming neither a monocyclic ring nor a fused ring, and R8 and R9 each independently represent a hydrogen atom, an aryl group, a heterocyclic group, or the like; a represents 0, 1, 2, or 3; b represents 0, 1, 2, or 3; and L1 and L2 each independently represent a single bond, an arylene group, a divalent heterocyclic group, or the like.