Lg Chem, Ltd

Mi Yeon Han

Dong Hoon Lee

Dong Uk Heo

Boon Jae Jang

Min Woo Jung

Jungoh Huh

Boonjae Jang

Minyoung Kang

Min Young Kang

Junghoon Yang

Jung-Hoon Yang

Jung Oh Huh

Jung Hoon Yang

Seong Mi Cho

Jung Ha Lee

Provided is a heterocyclic compound of Chemical Formula 1:

Heterocyclic compound and organic light emitting device comprising the same

Provided is a compound of Formula 1: where X is O or S; Aris an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Aris a functional group of Formula 2 below, with the proviso that Arand Arare different from each other, where Aris an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.

Compound and organic light emitting device comprising the same

The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, E&#x3e;Eand E&#x3e;E, and having improved driving voltage, efficiency, and lifetime.

Organic light emitting device

Provided is a heterocyclic compound of Chemical Formula 1: where Lis a single bond or a substituted or unsubstituted Carylene; Lis a single bond, a substituted or unsubstituted Carylene, or a substituted or unsubstituted Cheteroarylene, and Aris one of the following Chemical Formulas 2, 3, 4, or 5: and an organic light emitting device including the same.

The present invention relates to a novel cyclic compound represented by Formula 1, and an organic light emitting device comprising an organic material layer including the novel cyclic compound and having improved efficiency, low driving voltage, and enhanced lifetime characteristic: 

Heterocyclic compounds and organic light emitting device using the same

Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic. 

Hetero-cyclic compound and organic light emitting device comprising the same

The present disclosure relates to a cyclic compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device provides a low driving voltage and an improved lifetime characteristic of the organic light emitting device. 

The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device. 

Heterocyclic compound and organic light emitting device using the same

The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.

The present invention provides an organic light emitting device having improved driving voltage, efficiency and lifetime.

Growing community of inventors

Daejeon, South Korea

Mi Yeon Han