Patent ID: 7794856

Claim:
An organic light-emitting device comprising a pair of electrodes, and at least one layer comprising an organic compound and interposed between the electrodes, wherein the layer comprising the organic compound comprises an oligofluorene compound represented by general formula [1]: wherein R 1 , R 2 , R 8 , and R 9 are each a hydrogen atom; R 3 , R 4 , R 6 , R 7 , R 11 , and R 12 each represent, independently of one another, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted fused polycyclic group, or a substituted or unsubstituted amino group; R 5 and R 10 each represent, independently of one another, a hydrogen atom or a substituted or unsubstituted alkyl group; and n represents an integer of 1 to 20.