Organic light emitting device

The present invention relates to an organic light-emitting device which comprises: a first electrode; a second electrode opposite the first electrode; and an intermediate layer interposed between the first electrode and the second electrode and containing a first compound and a second compound, wher...

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Hauptverfasser: KIM, JONG SOO, KWON, EUN SUK, JUNG, YONG SIK, KIM, HWANG SUK, IHN, SOO GHANG, UM HYUN AH, JEON, SOON OK, KANG, HO SUK, CHUNG, YEON SOOK, CHOI HYEON HO, AHN HEE CHOON, KIM, JOONG HYUK, NAM, SUNG HO, KIM, JI WHAN, KIM HYEONG MIN, PARK, SANG HO, LEE YE SEUL, SON YOUNG MOK
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention relates to an organic light-emitting device which comprises: a first electrode; a second electrode opposite the first electrode; and an intermediate layer interposed between the first electrode and the second electrode and containing a first compound and a second compound, wherein the first compound includes a first silyl group-containing group and two carbazole-derived groups, one carbazole-derived group of the two carbazole-derived groups is bonded through an N atom of the other carbazole-derived group, the second compound includes a second silyl group-containing group, a triazine group, and the carbazole-derived group, and at least one of the first compound and the second compound has a triplet energy level (T1) of 2.81 eV or higher. In the organic light-emitting device according to one aspect, an exciton is easily transferred to a blue light-emitting emitter compound to suppress device deterioration. As a result, the organic light-emitting device with high efficiency and long lifespans can be manufactured. 본 발명은 제1전극; 상기 제1전극에 대향하는 제2전극; 및 상기 제1전극 및 제2전극 사이에 개재되고, 제1화합물 및 제2화합물을 포함하는 중간층을 포함하고, 상기 제1화합물은 제1실릴기-함유 그룹 및 2개의 카바졸-유래 그룹을 포함하되, 상기 2개의 카바졸-유래 그룹 중 하나의 카바졸-유래 그룹이 다른 하나의 카바졸-유래 그룹의 N 원자를 통해서 결합되고, 상기 제2화합물은 제2실릴기-함유 그룹, 트리아진 그룹, 및 카바졸-유래 그룹을 포함하고, 상기 제1화합물 및 제2화합물 중 적어도 하나는 삼중항 에너지 레벨(T1)이 2.81eV 이상인 유기 발광 소자에 관한 것이다.