Samsung Display Co., Ltd.

Joong-Won Sim

Kwan-Hee Lee

Ji-Hwan Yoon

Ja-Hyun Im

Byung-Hoon Chun

Tae-Kwang Sung

An organic light-emitting device including: a substrate; a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and an electron transport layer between the emission layer and the second electrode, wherein the emission layer includes a blue emission layer, the electron transport layer includes a unit that includes a first single layer including a first material, a first mixed layer on the first single layer and including the first material and a second material, a second single layer on the first mixed layer and including the second material, a second mixed layer on the second single layer and including the first and second materials, and a third single layer on the second mixed layer and including the first material, wherein the first mixed layer has a thickness that is larger than that of the second mixed layer.

Organic light-emitting device, method of manufacturing the same, and flat panel display device including the same

An organic light-emitting device and a flat panel device, the organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer including at least one N-doping layer.

Organic light-emitting device

A deposition apparatus includes: a deposition source including a spray nozzle linearly arranged in a first direction and discharging a deposition material; and a pair of angle control members disposed at both sides of the deposition source and controlling a discharging direction angle of the deposition material. Each angle control member includes a rotation axis parallel to the first direction, and a plurality of shielding plates installed about the rotation axis and separated from each other by a predetermined interval around the rotation axis. Although the deposition angle is changed according to the increasing of the process time, the deposition angle is compensated to form a uniform thin film. Also, the organic thin film may be uniformly deposited through each pixel of an organic light emitting diode (OLED) display, thereby increasing luminance uniformity for each pixel.

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Yongin, South Korea

Joong-Won Sim