ORGANIC LIGHT EMITTING DEVICE

The present specification relates to an organic light emitting element which comprises: an anode; a cathode; a light emitting layer installed between the anode and the cathode; and a hole transport region including two or more organic material layers installed between the light emitting layer and th...

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Bibliographic Details
Main Authors HA JAE SEUNG, LEE HOJUNG, HONG WANPYO
Format Patent
LanguageEnglish
Korean
Published 28.07.2021
Subjects
ELECTRICITY
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Summary:The present specification relates to an organic light emitting element which comprises: an anode; a cathode; a light emitting layer installed between the anode and the cathode; and a hole transport region including two or more organic material layers installed between the light emitting layer and the anode. Among the organic material layers, an organic material layer in contact with the light emitting layer comprises a compound of chemical formula 1. The light emitting layer includes a compound of chemical formula 2. Therefore, the organic light emitting element increases optical efficiency. 본 명세서는 애노드; 캐소드; 상기 애노드와 상기 캐소드 사이에 구비된 발광층; 및 상기 발광층과 상기 애노드 사이에 구비된 2층 이상의 유기물층을 포함하는 정공수송영역을 포함하는 유기 발광 소자로서, 상기 유기물층 중 발광층에 접하는 유기물층은 화학식 1의 화합물을 포함하고, 상기 발광층은 화학식 2의 화합물을 포함하는 유기 발광 소자에 관한 것이다.
Bibliography:Application Number: KR20210007837