Lg Display Co., Ltd.

Lg Chem, Ltd

Wan-Pyo Hong

Jun-Yun Kim

Tae-Ryang Hong

Jin-Joo Kim

Hong-Sik Yoon

Joong-Hwan Yang

Hyong-Jong Choi

Do-Han Kim

Jeong-Dae Seo

Sung-Kil Hong

Jung-Keun Kim

Ji-Cheol Shin

Heung-Woo Choi

Sang-Duk Suh

Joo-Yong Yoon

Disclosed is an organic light emitting diode (OLED) comprising at least one emitting unit that includes a first compound, which may have a bipolar property, a second compound, which may have a delayed fluorescent property, and a third compound, which may have narrow FWHM (full width at half maximum) and a fluorescent property, and an organic light emitting device including the OLED. Further the compounds have defined relative LUMO and HOMO energies. The OLED and the organic light emitting device has enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage.

Organic light emitting diode and organic light emitting device having the same

An organic compound including a carbazolyl moiety having a p-type property, a dibenzofuranyl or dibenzothiophenyl moiety having an n-type property and further substituted with a dibenzofuranyl or dibenzothiophenyl moiety is disclosed. An organic light emitting diode and an organic light emitting device including the organic compound are also disclosed. The organic compound has excellent thermal resistance and a high energy level due to the combination of fused hetero aromatic rings. Therefore, the organic light emitting diode and the organic light emitting device including the organic compound show excellent luminous efficiency and an improved luminous lifetime.

Organic compound having excellent thermal resistance property and luminescent property, organic light emitting diode and organic light emitting device having the compound

Disclosed is an organic light emitting diode (OLED) includes a first emitting material layer, which includes a first compound and a second compound, and a second emitting material layer, which includes a third compound and a fourth compound, wherein a HOMO energy level of the first compound is higher than a HOMO energy level of the second compound and a HOMO energy level of the third compound is lower than a HOMO energy level of the fourth compound, and an organic light emitting device having the OLED. The OLED and the organic light emitting device disclosed have enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage by applying the emitting material layer.

An embodiment of the present invention provides an organic compound represented by following Formula: wherein each of Rto Ris independently selected from hydrogen, substituted or non-substituted Cto Caryl, substituted or non-substituted Cto Cheteroaryl, substituted or non-substituted Cto Calkyl, substituted or non-substituted Cto Calkoxy, ether, cyano group (CN), fluorine, tri-fluoro methyl, tri-fluoro methoxy and trimethylsilyl, and at least one of Rto Ris the cyano group, and wherein at least one of Rto Ris the cyano group, and A is selected from substituted or non-substituted Cto Caryl and substituted or non-substituted Cto Cheteroaryl. The present invention also provides an organic light emitting diode and an organic light emitting display device including the organic compound.

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

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Daejeon, South Korea

Wan-Pyo Hong