| abstract |
(57) [Summary] (with correction) [PROBLEMS] To provide an electroluminescent element which suppresses thermal degradation of an organic electroluminescent element and has excellent heat resistance and durability. SOLUTION: An anode and a cathode, and an electroluminescent organic layer interposed therebetween are provided, and when a voltage is applied between the anode and the cathode, light emission of the luminescent material in the organic layer is performed. In the resulting electroluminescent device, the formula (1) is provided between the anode and the organic layer. Specifically, for example, Of a diamine component having a diaminobenzene derivative having an oligoaniline unit and a polyimide precursor having an oligoaniline unit in a side chain obtained from tetracarboxylic dianhydride or a derivative thereof and / or a polyimide and an electron-accepting dopant compound An electroluminescent device in which a salt is formed as a carrier transport auxiliary layer. |