Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Min-Seung Chun

Kwan-Hee Lee

Mi-Kyung Kim

Seok-Hwan Hwang

Yoon-Hyun Kwak

Jung-Ha Son

Jae-Hyun Kwak

Jong-Hyuk Lee

Young-Kook Kim

Jun-Yeob Lee

Dong-Heon Kim

Tae-Shick Kim

Yong-Joong Choi

Kyung-Hoon Choi

Young-Ho Park

Dong-Hun Kim

Choon-Woo Lim

Young-Suck Choi

Ji-Hwan Yoon

Mie-Hwa Park

Choon-Woo Im

Hee-Seong Jeong

Jong-hyuk Lee

Young-kook Kim

Ok-Keun Song

Young-Mo Koo

Hye-In Jeong

Jang-hyuk Kwon

Mie-Hwan Park

An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.

Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same

Provided are an organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.

Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.

Organic light emitting diode and method of manufacturing the same

Organic light emitting diodes (OLEds) are provided. In one embodiment, an OLED includes a first electrode, a second electrode and an organic layer positioned between the first and second electrodes. The organic layer comprises an organic metal complex represented by the formula [M(L)], in which L is an anionic ligand, M is a metal that can be five-coordinated or six-coordinated with L, and a is an integer ranging from 2 to 4.

Organic light emitting diode including organic layer comprising organic metal complex

An organic light-emitting device includes a first electrode, a mixed organic layer, an emission layer, an electron transport layer, and a second electrode. The mixed organic layer contains a fluorene derivative and a pyrazine derivative, and the electron transport layer contains a lithium quinolate and a pyridine derivative.

Organic light-emitting device

An organic light-emitting device is provided. The organic light-emitting device comprises a first electrode, a second electrode, and a light-emitting layer interposed between the first electrode and the second electrode. The device further comprises of a phosphorescent dopant and a phosphorescent host that includes at least two hole transport materials. The mixed phosphorescent host materials increase energy transfer efficiency, thereby improving the efficiency and lifespan of the resulting organic light-emitting device.

Organic light emitting devices including an electron transport-emission layer, and methods of preparing the same are included. The electron transport-emission layer may be an electron transport-red emission layer, an electron transport-green emission layer or an electron transport-blue emission layer. The methods produce high yields of the organic light emitting devices and are less expensive than conventional methods.

Organic light emitting device having an electron transport-emission layer and method of preparing the same

A method of forming a film on a substrate includes depositing first and second evaporating source materials respective from first and second evaporating sources onto the substrate while moving the evaporating sources together with respect to the substrate, the first and second evaporating source materials being different from each other and positioned to provide a non-overlapping deposition region of the first evaporating source material, an overlapping deposition region of the first and second evaporating source materials and a non-overlapping deposition region of the second source material such that when the evaporating sources are moved, a film is formed to include a first layer that is a deposition of only the first evaporating source material, a second layer that is a deposition of a mixture of the first evaporating source material and the second evaporating source material and a third layer that is a deposition of only the second source material.

Evaporating method for forming thin film

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Suwon-si, South Korea

Min-Seung Chun