Samsung Display Co., Ltd.

Jae-Kook Ha

Jin-Koo Chung

Seong-Min Kim

Jun-Ho Choi

Chang-Woong Chu

Young-Il Kim

Joo-Hyeon Lee

Sang-Hun Park

Seung-Mook Lee

Sung-Soo Lee

Jae-Bok Kim

Hyea-Weon Shin

Young-Shin Lee

Young-Ii Kim

Kyu-Ha Chung

An organic light emitting diode device, including a first electrode, a second electrode facing the first electrode, and a light emitting member disposed between the first electrode and the second electrode, the light emitting member including at least one light emitting unit. At least one of the light emitting units may include a first hole injection layer, a second hole injection layer, a hole transport layer, and an emission layer, and a difference between a HOMO energy level of the first hole injection layer and a LUMO energy level of the second hole injection layer may be smaller than about 0.5 eV.

Organic light emitting diode device including multiple hole injection layers

An organic light emitting display device includes a hole transport layer (HTL) having a first region and a second region, an emitting layer (EML) disposed on the hole transport layer in the first region, a hydrophobic pattern disposed on the hole transport layer in the second region and an electron transport layer (ETL) disposed on the hydrophobic pattern and the emitting layer.

Method for forming OLED devices with patterned hole or electron transport layers

A thin film deposition apparatus, which has high external light transmittance and a cathode having a uniform thickness, is disclosed. In one embodiment, the thin film deposition apparatus includes a deposition source spaced apart from a center of the substrate and configured to emit a deposition material toward the substrate and a blocking member disposed on the substrate and configured to block at least part of the deposition material emitted from the deposition source, wherein an opening is defined on at least one side of the blocking member.

Method of manufacturing the organic light-emitting display

Growing community of inventors

Yongin, South Korea

Jae-Kook Ha