Patent ID: 6821650
Filing Date: 2004-11-23
Classification: H01L,Y10S

Abstract:
An organic electroluminescent device with an organic layer including an emissive layer between an anode and a cathode, the organic layer comprising at least one compound having formula (3) below as a light-emitting material: where the substituent groups of ethylene groups are in a cis or trans form; R1 and R2 are the same or different groups and are benzo 5-membered heterocyclic groups having 0 to 4 methyl groups, benzo-6-membered heterocyclic groups having 0 to 4 methyl groups, phenyl groups having 0 to 3 substituent groups selected from Table 1, naphthyl groups having 0 to 3 substituent groups selected from Table 1, 5-membered heterocyclic groups having 0 to 3 substituent groups selected from Table 1, or 6-membered heterocyclic groups having 0 to 3 substituent groups selected from Table 1:TABLE 1â€”NO2 â€”R3 â€”CN â€”R4 â€”Oâ€”R4   â€”CF3â€”R4â€”R10â€”OH â€”Sâ€”R11 â€”R6â€”CH3where R3 is a halogen atom, R4 is an alkyl group having 1 to 4 carbon atoms; R5 is an alkylene group having 1 to 4 carbon atoms; R6 is an alkylene group having 2 to 4 carbon atoms; R7 is a substituent selected from Table 2, a phenyl group having 0 to 2 substituent groups selected from Table 4, or a naphthyl group having 0 to 4 substituent groups selected from Table 4; R8 is a substituent group selected from Table 3, a phenyl group having 0 to 2 substituent groups selected from Table 4, or a naphthyl group having 0 to 4 substituent groups selected from Table 4; R9 is an alkyl group having 1 to 4 carbon atoms or a phenyl group having 0 to 2 substituent groups selected from Table 4; R10 is an halogen atom, an alkoxy group having 1 to 4 carbon atoms, or a phenyl group having 0 to 2 substituent groups selected from Table 4; R11 is a cycloalkyl group having 5 to 6 carbon atoms, an alkyl group having 1 to 4 carbon atoms, 2-hydroxyethyl group, or a phenyl group having 0 to 2 substituent groups selected from Table 4:TABLE 2â€”R12â€”R13â€”CNâ€”R13â€”R14â€”R13â€”OH  â€”R13â€”Oâ€”R12     TABLE 3â€”R12 â€”R13â€”CN â€”R13â€”R14 â€”R13â€”OH     TABLE 4â€”Oâ€”R12 â€”R14 â€”NO2â€”CN â€”R12where R12 is an alkyl group having 1 to 4 carbon atoms; R13 is an alkylene group having 2 to 4 carbon atoms; R14 is an halogen atom; R15 is an alkylene group having 1 to 4 carbon atoms; R16 is an alkyl group having 1 to 4 carbon atoms or a phenyl group having 0 to 2 substituent groups selected from Table 4; and R17 and R18 are the same or different and are alkyl groups having 1 to 4 carbon atoms or hydrogen atom.