发明申请
US20050112404A1 Organic electroluminescent element 审中-公开
有机电致发光元件

Organic electroluminescent element
摘要:
In an organic electroluminescent element provided with a blue light-emitting layer and an orange light-emitting layer as a light-emitting layer between a hole injection electrode and an electron injection electrode, the blue light-emitting layer contains a host material, a light-emitting dopant and an assist dopant supplementing the carrier transfer of the host material. When the host material is an electron transfer material, an assist dopant has a smaller absolute value of highest occupied molecular orbital (HOMO) energy level than that of the host material and has a higher hole mobility than that of the host material.
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