Samsung Display Co., Ltd.

Sun-Hye Lee

Won-Jun Song

Ji-young Kim

Jae-Bok Kim

Myung-hwan Kim

Tae-Kyu Shim

Hye-Lim Shin

Yoon-Kyoo Lee

An organic light emitting device including: a first electrode, a hole injection layer on the first electrode, a hole transport layer on the hole injection layer, an organic light emitting layer on the hole transport layer, a first electron transport layer on the organic light emitting layer, a second electron transport layer on the organic light emitting layer, an electron injection layer on the second electron transport layer and a second electrode on the electron injection layer, where the first electron transport layer includes a first material for improving a thermal stability, a second material for improving a luminous efficiency and a third material for reducing a driving voltage, and the second electron transport layer is laminated with the first electron transport layer, and the second electrode faces the first electrode.

Organic light emitting device having stacked electron transport layers

Growing community of inventors

Suwon-si, South Korea

Sun-Hye Lee