发明申请
US20090026940A1 ORGANIC ELECTROLUMINESCENCE ELEMENT 审中-公开
有机电致发光元件

ORGANIC ELECTROLUMINESCENCE ELEMENT
摘要:
An organic electroluminescence element including an organic layer including at least a light-emitting layer between a pair of electrodes, wherein the light-emitting layer comprises at least two hole transporting materials and an electron transporting host material, with at least one of the hole transporting materials being a hole transporting light-emitting material, and a total concentration of the at least two hole transporting materials in the light-emitting layer decreases from an anode side toward a cathode side.
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