Patent ID: 6903506

Claim:
An organic electroluminescent element having a micro optical resonator structure, an organic electroluminescent member emitting light within the color region of bluish purple having a maximum peak of spectrum of from 350 nm to 420 nm and a color conversion member emitting visible fluorescent by absorbing the light emitted from the organic light emitting member, wherein the color of the light emitted from the color conversion member is within the red region, and the color conversion member is selected from a group consisting of K 5 Eu 2.5 (WO 4 ) 6.25 , Na 5 Eu 2.5 F(WO 4 ) 6.25 , K 5 Eu 2.5 F(MoO 4 ) 5.25 , and Na5Eu 2.5 F(MoO 4 ) 6.25 .