Patent ID: 6551723
Filing Date: 2003-04-22
Classification: H01L,Y10S

Abstract:
An organic electroluminescence element comprising a light-emitting layer or a plurality of organic compound thin layers containing a light-emitting layer between a pair of electrodes, wherein at least one layer in the organic electroluminescence element comprises at least one heterocyclic compound represented by formula (I) to (VII). wherein R11, R12 and R13 each independently represents a hydrogen atom or substituent; and Z1 represents an atomic group required to form a imidazole, triazole, triazine, or pyrimidine ring, wherein R21 and R22 each independently represents a hydrogen atom or substituent; and Z2 represents an atomic group required to form a 5- or 6-membered ring, wherein R31 and R32 each independently represents a hydrogen atom or substituent; and Z3 represents an atomic group required to form a 5- or 6-membered ring, wherein R41 and R42 each independently represents a hydrogen atom or substituent; and Z4 represents an atomic group required to form a pyrrole, pyrazole, imidazole, triazole, thiazole, thiadiazole, oxazole, oxadiazole, triazine, pyrimidine, pyridine, pyrazine or pyridazine, wherein R51 represents a hydrogen atom or substituent; and Z5 represents an atomic group required to form a 5- or 6-membered ring, wherein R61 represents a hydrogen atom or substituent; and Z6 represents an atomic group required to form a 5- or 6-membered ring, wherein R71 represents a hydrogen atom or substituent; and Z7 represents an atomic group required to form a 5- or 6-membered ring.