申请人:MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
公开号:EP1195422A1
公开(公告)日:2002-04-10
The present invention provides a thin film EL device having high electroluminescent efficiency, a low operating voltage, and a long lifetime. A thin film EL device of the present invention uses, as a luminescent layer, a charge-transport luminescent material that has, within a molecule, a portion contributing to charge transport and a portion contributing to luminescence where at least two molecular orbitals contributing to luminescent transition are localized.
本发明提供了一种具有高电致发光效率、低工作电压和长使用寿命的薄膜电致发光器件。本发明的薄膜电致发光器件使用电荷传输发光材料作为发光层,这种材料在分子内具有有助于电荷传输的部分和有助于发光的部分,其中至少有两个有助于发光转变的分子轨道被定位。