Maschoff Brennan
Organic electroluminescent device
This invention relates to an OLED, comprising an anode, a cathode, and an organic layer, the organic layer at least contains one or more layers containing light emitting layer from the hole injection layer, hole transport layer, electron injection layer, electron transport layer, light emitting layer; the light emitting layer is a host guest doping system composed of host materials and guest materials. The light-emitting zone of the light emitting layer is blue 440-490 nm, and the host material or guest material has a structure with the formula (I). The OLED has the advantages of excellent light emitting efficiency, excellent color purity and long lifetime.
GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS CO., LTD. BEIJING AGLAIA TECHNOLOGY DEVELOPMENT CO., LTD.
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Jinxin Kam-Hung Zhe Lifei
Chen Low Li Cai