Rohm and Haas Electronic Materials Korea Ltd.

Lg Display Co., Ltd.

Ji-Song Jun

Doo-Hyeon Moon

Kyoung-Jin Park

Chi-Sik Kim

Tae-Jin Lee

Hee-Choon Ahn

Young-Jun Cho

Young-Kwang Kim

Jae-Hoon Shim

Sang-Hee Cho

Su-Hyun Lee

Bitnari Kim

Hee-Ryong Kang

Jin-Ri Hong

Jeong-Eun Yang

Young-Mook Lim

Hong-Yeop Na

Kyung-Hoon Choi

Jeong-Hwan Jeon

Hyun Joo Kim

Hong-Se Oh

Hyeseung Kang

Hyun-Ju Kang

Nam-Kyun Kim

Hyo-Jung Lee

Yeon-Gun Lee

Seon-Woo Lee

Yoo-Jin Doh

Kyung-Joo Lee

Seon-Jin Hwang

Dohan Kim

Hong-Yoep Na

Yoo Jin Doh

Disclosed herein is an organic light emitting diode device. The organic light emitting diode device includes an anode, a cathode and a light emitting layer. The light emitting layer has a structure where a blue light emitter and a red/green simultaneous light emitter are stacked. The red/green simultaneous light emitter has a structure where a red light emitter and a green light emitter are stacked. The red light emitter includes a red host compound, and in some embodiments, the red host compound includes a spirobisfluorene-based compound where an aryl amino group is substituted. The green light emitter includes a green host compound, and the green host compound includes a mixture of a first green host compound and a second green host compound. In some embodiments, the first green host compound includes a biscarbazole-based compound and the second green host compound includes an indolocarbazole-based compound.

Organic light emitting diode device

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.

Organic electroluminescent compound and organic electroluminescent device comprising the same

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 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, it is possible to provide an organic electroluminescent device having lower operating voltage, higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.

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.

Organic electroluminescent device

The present invention relates to an electron buffering material and an organic electroluminescent device comprising the same in an electron buffer layer. It is possible to provide an organic electroluminescent device having excellent luminous efficiency and lifespan characteristics by using the electron buffering material according to the present invention.

Electron buffering material and organic electroluminescent device comprising the same

The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has excellent color purity, solubility, and thermal stability. By comprising the organic electroluminescent compound and the organic electroluminescent material of the present disclosure, an organic electroluminescent device showing low driving voltage, excellent current and power efficiencies, and significantly improved lifespan can be provided.

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

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 excellent lifespan characteristic can be produced.

The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.

Plurality of host materials and an organic electroluminescence device comprising the same

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present invention, it is possible to produce an organic electroluminescent device having low driving voltage and excellent luminous efficiency such as current efficiency and power efficiency, emitting color of high purity, and having improved lifespan.

Organic electroluminescent compounds and organic electroluminescent devices comprising the same

Growing community of inventors

Hwaseong, South Korea

Ji-Song Jun