| abstract |
Disclosed is an organic light emitting material having the following chemical formula, for improving luminous efficiency, where R1, R2, R3 and R4 denote materials selected from an aromatic group with 6-24 carbon atoms (C6-C24), the group being independently substituted or unsubstituted, preferably, an aromatic group with 6-24 carbon atoms (C6-C24), the group consisting of trimethylsilane (TMS), CN, halogen (F, Cl, Br), and alkyl groups with 1-4 carbon atoms (C1-C4). |