Organic electroluminescence device

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Details

428690, 428917, 313504, 25230116, B32B 900

Patent

active

053467728

ABSTRACT:
An organic electroluminescent device comprises an anode, a positive-hole transport layer of organic compound, an emitting layer of organic compound, and a cathode which are laminated in sequence, wherein the emitting layer comprises a pyrimidopyrimidine derivative. This device emits with a high luminance and high emission efficiency.

REFERENCES:
patent: 5153073 (1992-10-01), Ohnuma et al.
patent: 5256945 (1993-10-01), Imai et al.
Nakashima et al., "Synthesis of Pyrimido [5,4-d] Pyrimidine Derivatives and Their UV Absorption and Fluorescence Spectral Properties," Dyes and Pigments, 12 (1990) 21-26.

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