Organic light-emitting element

An organic light emitting device, comprising:

• a first electrode;
• a second electrode provided to face the first electrode;
• and
• an organic material layer provided between the first electrode and the second electrode,
• wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises a compound of Formula 1:
• wherein in Formula 1:
• L1 is a quinazolinylene group or a quinoxalinylene group;
• Ar1 is a phenyl group;
• a naphthyl group;
• a phenanthrene group;
• a phenyl group substituted with a naphthyl group;
• a dibenzofuran group;
• a dibenzothiophene group;
• a carbazole group;
• or a carbazole group substituted with a phenyl group;
• R1, R2, and R5 to R12 are the same as or different from each other, and are each independently hydrogen, or a substituted or unsubstituted C1 to C6 alkyl group, or any two adjacent groups are bonded to each other to form a ring;
• and
• R3 and R4 are bonded to each other to form an unsubstituted aromatic ring;
• and
• wherein the organic material layer comprises an electron blocking layer, and the electron blocking layer comprises a compound that is any one of the following compounds: