US 12,284,908 B2
Organic light emitting device
In-Bum Song, Paju-si (KR); Seung-Hee Yoon, Paju-si (KR); Shiren Kazushi, Paju-si (KR); and Sasada Yasuyuki, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 25, 2021, as Appl. No. 17/329,625.
Claims priority of application No. 10-2020-0065147 (KR), filed on May 29, 2020; and application No. 10-2021-0063692 (KR), filed on May 17, 2021.
Prior Publication US 2021/0376246 A1, Dec. 2, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 50/13 (2023.01); H10K 59/12 (2023.01); H10K 85/60 (2023.01); H10K 101/00 (2023.01); H10K 59/38 (2023.01)
CPC H10K 85/631 (2023.02) [C09K 11/06 (2013.01); H10K 85/626 (2023.02); C09K 2211/1007 (2013.01); H10K 50/131 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02); H10K 2101/90 (2023.02)] 15 Claims
OG exemplary drawing
 
1. An organic light emitting device, comprising:
a substrate; and
an organic light emitting diode positioned on the substrate, the organic light emitting diode including:
a first electrode;
a second electrode facing the first electrode; and
a first emitting material layer positioned between the first and second electrodes, the first emitting material layer including:
a first host that is a first anthracene derivative, and
a first dopant that is a first boron derivative,
wherein an anthracene core of the first host is deuterated, and the first dopant is represented by Formula 3:

OG Complex Work Unit Chemistry
wherein each of R11 to R14, each of R21 to R24, each of R31 to R35 and each of R41 to R45 is selected from the group consisting of hydrogen, deuterium, C1 to C10 alkyl, C6 to C30 arylamino, C5 to C30 heteroaryl, and C6 to C30 aryl unsubstituted or substituted with C1-C10 alkyl,
wherein R51 is selected from the group consisting of hydrogen, deuterium, C1 to C10 alkyl, and C3 to C30 cycloalkyl,
wherein the first host is represented by Formula 1:

OG Complex Work Unit Chemistry
wherein R1 is phenyl or naphthyl, and R2 is naphthyl or dibenzofuranyl,
wherein each of L1 and L2 is independently phenylene,
wherein x is 8,
wherein y1 is 0, and y2 is an integer of 0 or 1, and
wherein R1, R2, and L2 are undeuterated.