Lg Display Co., Ltd.

Material Science Co., Ltd.

Lg Chem, Ltd

Seunghee Yoon

Min Ro Yun

Dohan Kim

Seonkeun Yoo

Hyoseok Kim

Shinhan Kim

Inbum Song

Jungkeun Kim

Hyeseung Kang

Sunghoon Joo

Sunghoon Kim

Jeongdae Seo

Tae Wan Lee

Seong-Min Park

Dong Hun Lee

Jicheol Shin

Sunjae Kim

Jeonghoe Heo

Hyun Bin Kang

Jaemin Ryu

Byungsoo Kim

Sangbeom Kim

EunJung Park

Heejun Park

Soyoung Jang

Jin Sung Kim

Jae Ho Jeong

Sang-Hoon Hong

Hanbyeol Seok

Joo Yong Yoon

Wan Hong

Joon Shik Yoon

Min Seong Yun

Jiwoong Yoo

Eunjung Park

Tae-Ho Kwak

Disclosed is an organic electroluminescence device. The device includes an anode; a cathode; and a first light-emission layer disposed between the anode and the cathode and configured for emitting blue light. The first light-emission layer comprises a host composition and a blue dopant. The blue dopant includes at least one compound represented by Chemical Formula D. The host composition contains a first host compound and a second host compound. The first host compound has a triplet energy level higher than a triplet energy level of the blue dopant, while the second host compound has a triplet energy level lower than the triplet energy level of the blue dopant. In Chemical Formula D, each of R, R, R, Rand Rindependently is the same as defined in the present specification.

Organic electroluminescence device

Disclosed is an organic electroluminescent device. More specifically, disclosed is an organic electroluminescent device comprising at least one organic layer comprising at least two dopant compounds therein. The electroluminescent device employs both of a boron-based dopant and a pyrene-based dopant to provide improved color characteristics, efficiency and lifespan.

Organic electroluminescent device

Disclosed is an organic electroluminescent device including a first electrode, one or more organic material layers, and a second electrode, wherein the organic material layer includes a light emitting layer, wherein one or more layers of the organic material layer contain a compound represented by Chemical Formula 1, wherein the light emitting layer contains a compound represented by Chemical Formula 2. The organic electroluminescent device has lowered drive voltage, and improved efficiency and lifespan characteristics.

An organic light emitting display device is provided. The organic light emitting display device includes at least two or more light emitting parts between an anode and a cathode and each having a light emitting layer. At least one of the at least two or more light emitting parts includes an organic layer. The organic layer is formed of a compound comprising a functional group that reacts with alkali metals or alkali earth metals and a functional group with electron transport properties.

Organic light emitting display device

Disclosed is an organic electroluminescent device with lowered driving voltage, and enhanced efficiency and lifetime.

Organic compound and organic electroluminescent device comprising the same

Organic electroluminescent devices with lowered driving voltages, and enhanced efficiencies and lifetimes are provided.

Compound and organic electroluminescent device comprising the same

Disclosed herein are an organic light emitting diode including: at least two light emitting stacks interposed between an anode and a cathode and including at least one light emitting material layer; and a charge generation layer interposed between the light emitting stacks. The charge generation layer includes an N-type charge generation layer and a P-type charge generation layer, wherein the N-type charge generation layer and the P-type charge generation layer are stacked in such direction for the N-type charge generation layer to face the anode and for the P-type charge generation layer to face the cathode. The N-type charge generation layer includes a compound represented by Formula 1. The P-type charge generation layer includes any one selected from the group consisting of a compound represented by Formula 2, a compound represented by Formula 3, and a combination thereof. The material for N-type charge generation layers and the material for P-type charge generation layers of the disclosure can secure low driving voltage and long lifespan of an organic light emitting diode when used in the organic light emitting diode. Compounds of Formulae 1, 2, and 3 are as defined herein.

Organic light emitting diode

The present disclosure relates to a novel organic compound and an organic electroluminescent device including the same. More specifically, the present disclosure relates to a deuterated organic compound and an organic electroluminescent device including at least one organic layer made of the deuterated organic compound. Thus, the organic electroluminescent device exhibits a longer lifetime, lower voltage implementation, and improved luminous efficiency.

Organic compounds and organic electroluminescent device including the same

Disclosed herein is an organic compound, an organic light emitting diode including the same, and an organic light emitting display. The organic compound according to the present disclosure is a phenanthroline compound represented by the following Formula 1, which is used as an electron transport material of an organic light emitting diode. The phenanthroline compound can increase lifespan of the organic light emitting diode while reducing driving voltage of the organic light emitting diode. 

Organic compound, organic light emitting diode including the same, and organic light emitting display

An organic light emitting display device is disclosed. The organic light emitting display device comprises an anode; an organic layer on the anode; and a cathode on the organic layer, wherein the organic layer comprises a compound including a carbazole compound having hole characteristics and a material having electron characteristics.

An organic light emitting display device is disclosed. The organic light emitting display device comprising at least one light emitting part between an anode and a cathode and comprising at least one organic layer and a light emitting layer, wherein the at least one organic layer comprises a compound that includes a functional group having at least three or more nitrogen atoms and has high electron mobility, a bridge connected to the functional group, and a substituent substituted at a meta position of the bridge.

An organic light emitting display device is provided. The organic light emitting display device includes at least two or more light emitting parts each having a light emitting layer and an electron transport layer; and a charge generation layer between the at least two or more light emitting parts. The charge generation layer comprises a compound that includes a core with two nitrogen atoms and a functional group having crystallinity.

Growing community of inventors

Seoul, South Korea

Seunghee Yoon