Samsung Display Co., Ltd.

Sangho Jeon

Sunwoo Kang

Youngmi Cho

Soobyung Ko

Taekyung Kim

Kyungchan Chae

Sunmi Choi

Donguk Kang

Sohae Kim

An organometallic compound includes a hexadentate ligand bonded to a metal atom (M). An energy level (E) of aMC state (triplet metal centered state) of the organometallic compound is higher than an energy level (E) of aMLCT state (triplet metal-to-ligand charge transfer state) of the organometallic compound.

Organometallic compound and organic light-emitting device including the same

An organometallic compound and an organic light-emitting device including the same are provided. The organometallic compound may be represented by Formula 1, wherein Lis a ligand represented by Formula 2A and Lis a ligand represented by Formula 2B. Further details about the compounds are presented in the disclosure.M(L)(L),&#x2003;&#x2003;&#x3c;Formula 1&#x3e; 

A borole compound is represented by Formula 1: X&#x2014;(R). X, R, and b11 are as defined herein. An organic light-emitting device includes the borole compound. The organic light-emitting device includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes the borole compound.

Borole compound and organic light-emitting device including the same

A dibenzoborole-based compound and an organic light-emitting device including the same. The dibenzoborole-based compound is represented by the formula A-(A), wherein Amay be selected from specific aromatic and non-aromatic carbocycles and heterocycles, n1 may be an integer selected from 1 to 10, and each Amoiety may independently be selected from a group represented by Formula 2:  The dibenzoborole-based compound may be included in the hole transport region or hole transport layer. When the dibenzoborole-based compound has strong electron acceptor characteristics, the hole injection barrier between the anode and the organic layer may be reduced, and thus, an organic light-emitting device including the dibenzoborole-based compound may have high efficiency and a long lifespan.

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Yongin-si, South Korea

Sangho Jeon