Rohm and Haas Electronic Materials Korea Ltd.

Dupont Specialty Materials Korea Ltd.

Dow Global Technolgoies LLC

Doo-Hyeon Moon

Sang-Hee Cho

Su-Hyun Lee

Jin-Ri Hong

Bitnari Kim

Young-Mook Lim

Hee-Ryong Kang

Mi-Ja Lee

Hyun-Ju Kang

Nam-Kyun Kim

Ji-Song Jun

Du-Yong Park

Hee-Choon Ahn

So-Young Jung

Young-Kwang Kim

Tae-Jin Lee

Kyoung-Jin Park

Hong-Se Oh

Chi-Sik Kim

Jeong-Eun Yang

Young-Jun Cho

Jae-Hoon Shim

Dong-Hyung Lee

Kyung-Hoon Choi

Hae-Yeon Kim

Shaoguang Feng

Hyun Hong Kim

Zhengming Tang

Hong-Yeop Na

Hyuck Joo Kwon

Hyo-Soon Park

Sung-Wook Cho

Tae-Jun Han

Seon-Woo Lee

Yeon-Gun Lee

Yoo-Jin Doh

Hyo-Nim Shin

Kyung-Joo Lee

So-Mi Park

Hyun-Woo Kang

Kyung Joo Lee

Bong-Ok Kim

Hong Yeop Na

Hee Sook Kim

Seok Keun Yoon

Yoo Jin Doh

Sang Hee Cho

Bit-Na-Ri Kim

The present disclosure relates to an organic electroluminescent device comprising a light-emitting layer and a hole transport zone. By comprising a combination of the specific light-emitting layer and the specific hole transport zone according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics.

Organic electroluminescent device

The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as host materials, it is possible to provide an organic electroluminescent device having lower driving voltage, higher luminous efficiency, higher power efficiency, and/or superior lifespan characteristics compared to conventional organic electroluminescent devices.

Plurality of host materials and organic electroluminescent device comprising the same

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, the organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared with the conventional device using one component host compound.

Multi-component host material and organic electroluminescent device comprising the same

The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or longer lifetime properties as compared with a conventional organic electroluminescent device.

The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics can be provided.

Organic electroluminescent compound and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound represented by formula 2' or formula 2″, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifespan properties can be provided by including the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material(s).

Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same

An organic electroluminescent compound and an organic electroluminescent device comprising the same provide an organic electroluminescent device having low driving voltage and/or excellent power efficiency and/or improved driving lifespan.

The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.

Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device

The present disclosure relates to a plurality of host materials comprising a compound represented by formula 1 and a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the plurality of host materials comprising a specific combination of compounds, it is possible to provide an organic electroluminescent device having long lifespan characteristics.

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound, an organic electroluminescent device having a low driving voltage and/or a high luminous efficiency and/or a long lifespan can be provided.

The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure comprises a specific combination of an electron buffer material and an electron transport material which can provide high efficiency and/or long lifespan.

Organic electroluminescent device comprising an electron buffer layer and an electron transport layer

The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or long lifespan properties can be provided.

The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising the host materials according to the present disclosure, an organic electroluminescent device having a high power efficiency and/or long lifespan can be provided.

Growing community of inventors

Gyeonggi-do, South Korea

Doo-Hyeon Moon