Kyulux, Inc.

Kyushu University

Nippon Steel & Sumikin Chemical Co., Ltd.

Nippon Steel Chemical & Material Co., Ltd.

Ayataka Endo

Yoshitake Suzuki

Shuo-Hsien Cheng

Jorge Aguilera-Iparraguirre

Hayato Kakizoe

Chihaya Adachi

Nigel Pickett

Yu Seok Yang

Naoto Notsuka

Timothy D Hirzel

Rafael Gomez-Bombarelli

Keiro Nasu

Hiroaki Ozawa

YuSeok Yang

Ping Kuen Daniel Tsang

Makoto Yoshizaki

Tsang Ping Kuen

Yong Joo Cho

Kaori Fujisawa

Hiroko Nomura

Takahiro Kai

James Harris

Hajime Nakanotani

Hiroshi Miyazaki

Kazuaki Yoshimura

Atsushi Kawada

Hiroki Noda

Asuka Yoshizaki

Stuart Stubbs

Kiyomasa Sueishi

Nathalie Gresty

Minki Hong

Junji Adachi

Cheok-Lam Wong

Tsang Ping Kuen Daniel

Hidetoshi Fujimura

Zugang Liu

Chris Brown

The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.

Composition of matter for use in organic light-emitting diodes

An organic light-emitting device having an organic mixed layer that contains a first organic compound and a second organic compound and a third organic compound satisfying E(A)>E(B)>E(C). E(A), E(B) and E(C) each represent a lowest excited singlet energy level of the first organic compound, the second organic compound and the third organic compound, respectively. The second organic compound and the third organic compound are delayed fluorescent materials. The invention provides an organic light-emitting device having a long lifetime and a high light emission efficiency.

Organic light emitting element

An organic light emitting element produced by using a light emitting composition that contains both a first compound having a PBHT value more than 0.730 and a second compound having Elower than that of the first compound and ΔEless than 0.20 eV is excellent in durability. Eis the lowest excited singlet energy level, ΔEis the difference between the lowest excited singlet energy level and the lowest excited triplet energy level.

Composition, film, organic light emitting element, method for providing light emitting composition, and program

An organic electroluminescent device having an anode, a cathode, and a light-emitting layer between the anode and the cathode, wherein the light-emitting layer contains at least a first organic compound, a second organic compound and a third organic compound satisfying the following formula (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light-emitting material, has a high light emission efficiency. Formula (A): E(A)>E(B)>E(C) wherein E(A), E(B) and E(C) each represent a lowest excited singlet energy level of the first organic compound, the second organic compound and the third organic compound, respectively.

Organic electroluminescence element

The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. At least two of Z, Z, Z, Zand Zare CN, cyanoaryl, or heteroaryl having at least one nitrogen atom as a ring-constituting atom; and at least two of R, R, Rand Rare diarylamino, indolyl or carbazolyl.

A nanoparticle conjugate includes a quantum dot (QD) and a thermally activated delayed fluorescence (TADF) molecule bound to the QD. In some instances, the TADF molecule can be directly bound to a surface of the QD. In other instances, the TADF molecule can be indirectly bound to the QD via an interaction with one or more capping ligands disposed on a surface of the QD. Nanoparticle conjugates described herein can be incorporated into emissive layers of electroluminescent light-emitting diode devices to yield electroluminescent quantum dot-containing light-emitting diode (QD-LED) devices.

Electroluminescent display devices and methods of making the same

The present disclosure relates to compounds of Formula (I)-(V) as compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Composition of matter for use in organic light- emitting diodes

The present disclosure relates to compounds of Formula (I) and (II):

The present disclosure relates in part to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

The present disclosure relates in parts to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

The present disclosure relates to compounds of Formula (I) as useful materials for OLED's. X is O or S; Yto Yare N or R&#x2014;C; at least one of R and Rto Ris CN or heteroaryl; and at least other one of R and Rto Ris diarylamino. 

The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of these compounds in organic light-emitting diodes.

The present disclosure relates to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

An organic light emitting device having an exciton generation layer that contains a compound having a difference between the lowest excited singlet energy level Eand the lowest excited triplet energy level Ethereof of 0.3 eV or less, or an exciplex to emit delayed fluorescence, and a light emitting layer that contains a light emitting material has a high efficiency and a long lifetime.

Growing community of inventors

Fukuoka, Japan

Ayataka Endo