Samsung Display Co., Ltd.

Seoul National University

Hyoungkun Kim

Samil Kho

Youngkook Kim

Seokhwan Hwang

Jongwoo Kim

Kwanhee Lee

Sanghyun Han

Hyein Jeong

Junyoung Lee

Haejin Kim

Sehun Kim

Seunggak Yang

Donghwan Kim

Seongjin Jeong

Jinwoong Kim

Jongin Hong

An organic light-emitting includes a first electrode having a work function greater than about 4.9 eV and less than about 5.2 eV, a second electrode facing the first electrode, an organic layer disposed between the first electrode and the second electrode and including an emission layer, a hole transport region disposed between the first electrode and the emission layer, wherein the hole transport region includes a first hole transport layer including a first hole-transporting material, and the first hole transport layer is substantially free of a p-dopant.

Organic light-emitting device and method of manufacturing the same

An organic light-emitting device having high efficiency and long lifespan including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2: When compounds represented by Formulae 1 and 2 are included in the emission layer, organic light-emitting devices may exhibit improved driving voltage, improved luminance, improved efficiency, and/or improved lifespans.

Organic light emitting device

Provided are a condensed cyclic compound of Formula 1 and an organic light-emitting device including the same 

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

Growing community of inventors

Yongin-si, South Korea

Hyoungkun Kim