Patent ID: 11963443
Assignee: LG DISPLAY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 36:
37. The organic light emitting device of claim 21, wherein the first hole blocking material is represented by Formula 10:, wherein each of Y1 to Y5 are independently CR1 or N, and one to three of Y1 to Y5 is N,
wherein R1 is independently hydrogen or C6˜C30 aryl group,
wherein L is C6˜C30 arylene group, and R2 is C6˜C30 aryl group or C5˜C30 hetero aryl group,
wherein R3 is hydrogen, or adjacent two of R3 form a fused ring, and
wherein “a” is 0 or 1, “b” is 1 or 2, and “c” is an integer of 0 to 4.