Patent ID: 11889757
Assignee: LG DISPLAY CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 20:
21. An organic light emitting diode, comprising:
a first electrode and a second electrode facing each other;
at least one emitting unit disposed between the first electrode and the second electrode, the at least one emitting unit including an emitting material layer,
wherein the emitting material layer includes a first emitting material layer including a first compound and a second compound, and a second emitting material layer including a third compound and fourth compound and disposed between the first electrode and the first emitting material layer or disposed between the first emitting material layer and the second electrode,
wherein the first compound includes an organic compound having a following structure of Chemical Formula 1, the second compound includes an organic compound having a following structure of Chemical Formula 3:, wherein each of R1 to R5 is independently selected from the group consisting of protium, deuterium, tritium, C5˜C30 aryl group and C4˜C30 hetero aryl group, and X is CR6 or nitrogen (N), wherein R6 is protium, deuterium, tritium or C1˜C20 alkyl group,, and wherein R11 is selected from the group consisting of protium, deuterium, tritium, C5˜C30 aryl group and C4˜C30 hetero aryl group, each of R12 and R13 is a carbon (C), wherein each of R12 and R13 is bonded to protium, deuterium or tritium or R12 is bonded to R13 directly or through oxygen (O), sulfur (S) or selenium (Se), Y1 is carbon (C), silicon (Si) or germanium (Ge), Y2 is carbon (C) or germanium (Ge), m is an integer of 1 to 4, and n is an integer of 1 to 2.