E-Ray Optoelectronics Technology Co., Ltd.

E-Ray Optoelectronics Technology

Po-Wei Hsu

Heh-Lung Huang

Banumathy Balaganesan

Huang-Ming Guo

Kun-Feng Chiang

Teng-Chih Chao

Chi-Jen Lin

Yi-Huan Fu

The present disclosure provides phenyl biphenylpyrimidine compounds of formula (I) and an organic electroluminescent device using the same: wherein X1 and A1 each independently represents substituted or unsubstituted C6-30 aryl or substituted or unsubstituted C5-30 heteroaryl having at least one heteroatom selected from the group consisting of N, O, and S, and n represents an integer of 1 or 2.

Phenyl biphenylpyrimidine compound and an organic electroluminescent device using the same

The present invention provides a high triplet energy compound of Formula 1 for an organic electroluminescent device: In Formula 1, X represents an oxygen or a sulfur atom, and represents a substituted or unsubstituted hetero-aromatic ring containing at least two nitrogens or an alkyl group with C2 to C6. The organic electroluminescent device including the compound used in an emissive layer or an electron transporting layer enhances the efficiency and the stability of the device.

Phosphorescent materials for organic electroluminescent devices

The present invention provides a carbazole derivative of formula (I) for an organic electroluminescent device: 

Carbazole derivative and organic electroluminescent devices utilizing the same and fabrication method thereof

The present invention discloses a novel compound of Formula 1, and an organic electroluminescent device using the same. In Formula 1, X and Y independently represents an aromatic or a hetero aromatic hydrocarbon having a carbon number of from 5 to 10. Arto Areach independently represents an unsubstituted or substituted aromatic hydrocarbon having a carbon number of from 4 to C12, or an unsubstituted or substituted condensed polycyclic aromatic hydrocarbon having a carbon number of from 4 to 12; Arto Arcan form an annulated or fused aromatic ring system with the adjacent aromatic hydrocarbons. When the compound of Formula I is used in the device, high luminous efficiency, longer lifetime and low driving voltage can be achieved. 

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Taoyuan, Taiwan

Po-Wei Hsu