Samsung Electronics Co., Ltd.

Masaki Numata

Mitsunori Ito

Keisuke Korai

Shiro Irisa

Rie Sakurai

Wataru Sotoyama

Jhunmo Son

Norihito Ishii

Atsushi Imamura

Norifumi Kishi

Masaru Kinoshita

An organic light-emitting device comprising: a first electrode; a second electrode; and an emission layer between the first electrode and the second electrode, wherein the emission layer comprising a first compound, a second compound, and a third compound, the first compound comprising at least one compound represented by one of Formulae 1-1 to 1-4, the second compound comprising at least one compound represented by one of Formulae 2-1 to 2-4, and the third compound includes at least one of a triphenylene group, a dibenzofuran group, a dibenzothiophene group, a fluorene group, a biscarbazole group, or any combination thereof, wherein a band gap between a highest occupied molecular orbital (HOMO) band energy level and a lowest unoccupied molecular orbital (LUMO) band energy level of the third compound is 3.3 eV or more. Formulae 1-1 to 1-4 and Formulae 2-1 to 2-4 are described herein.

Organic light-emitting device and apparatus including the same

Provided is a compound that has a long pot life of a solution and is able to achieve low driving voltage, high efficiency, and long lifespan of an organic electroluminescent device. The present disclosure relates to a compound having a triphenyl triazine structural moiety and including a group that has a structure in which a substituted or unsubstituted carbazole group and a predetermined number of carbazole rings are directly bonded via a single bond, as described in the specification.

Compound, composition including the same, liquid composition, and organic electroluminescent device

A heterocyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the heterocyclic compound:

Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound

A condensed cyclic compound represented by Formula 1, a composition including the same, and an organic light-emitting device including the condensed cyclic compound: wherein R-R, L-L, Ar, n1, a1-a2, and b3-b6 are described in the specification.

Condensed cyclic compound, composition including the same, and organic light-emitting device including the condensed cyclic compound

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Kanagawa-ken, Japan

Masaki Numata