Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Choon-Woo Lim

Kwan-Hee Lee

Min-Seung Chun

Kyung-Hoon Choi

Mi-Kyung Kim

Eun-Jung Lee

Tae-Shick Kim

Jung-Ha Son

Jae-Hyun Kwak

Dong-Heon Kim

Sang-Shin Lee

Young-Ho Park

Ji-Hwan Yoon

Mie-Hwa Park

Sung-Jun Bae

Dong-Hun Kim

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 includes a substrate; a first electrode; a second electrode; and an organic layer including an emission layer between the first electrode and the second electrode. The organic layer includes a first intermediate layer including a first host and a first dopant, a second intermediate layer including the first dopant, and a third intermediate layer including a second host and the first dopant interposed between the first electrode and the emission layer. The organic light emitting device has a long lifetime.

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

An OLED including an electron transport layer having multi-layered structure and a method of manufacturing the same, the method including simultaneously reciprocating first and second deposition sources that include different deposition materials, across a substrate.

Organic light-emitting diode including electron transport layer and method of manufacturing the same

An organic light-emitting device including a mixed organic layer that includes a triphenyl amine derivative and a pyrazine derivative and an emission layer that includes an anthracene derivative, an amine-containing styryl derivative, or any mixture thereof.

An organic light emitting display device that can reach the optimum light emitting efficiency of each pixel while operating at a low voltage. The organic light emitting display device includes a first pixel region emitting a first color, a second pixel region emitting a second color different from the first color, a first layer formed over the first and second pixel regions, and having at least one of a hole injection layer and a hole transport layer, and a second layer formed over the first and second pixel regions, and having hole injectivity higher than the first layer, wherein the first and second layers are sequentially deposited in the first pixel region, and the second and first layers are sequentially deposited in the second pixel region.

Growing community of inventors

Suwon-si, South Korea

Choon-Woo Lim