申请人:PIONEER ELECTRONIC CORPORATION
公开号:EP0583861A1
公开(公告)日:1994-02-23
An organic electroluminescent device comprising an anode (2), a positive-hole transport layer (4) of organic compound, an emitting layer (3) of organic compound and a cathode (1) which are laminated in sequence, the emitting layer comprises a pyrimidopyrimidine derivative of the formula 1
where R₁ - R₄ are independently hydrogen atom, halogen atom and functional groups represented by formula 2.
where R₅ and R₆ are independently hydrogen atom, alkyl group, aryl group, or R₅ and R₆ taken together comprises the atoms or groups necessary to complete a cycloalkyl or hetetocylic ring.
This device has a high luminance and high emission efficiency.
一种有机电致发光器件,包括依次层叠的阳极 (2)、有机化合物正空穴传输层 (4)、有机化合物发光层 (3) 和阴极 (1),发光层包括式 1 的嘧啶嘧啶衍生物
其中 R₁ - R₄ 分别为氢原子、卤素原子和式 2 所代表的官能团。
其中 R₅ 和 R₆ 独立地为氢原子、烷基、芳基,或 R₅ 和 R₆ 合在一起包含完成环烷基或四环所需的原子或基团。
这种装置具有高亮度和高发射效率。