US 12,268,089 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. 17/329,807.
Claims priority of application No. 10-2020-0065152 (KR), filed on May 29, 2020; and application No. 10-2021-0063689 (KR), filed on May 17, 2021.
Prior Publication US 2021/0376254 A1, Dec. 2, 2021
Int. Cl. H10K 85/60 (2023.01)
CPC H10K 85/6572 (2023.02) [H10K 85/615 (2023.02); H10K 85/633 (2023.02); H10K 85/636 (2023.02)] 19 Claims
OG exemplary drawing
 
1. An organic light emitting device, comprising:
a substrate; and
an organic light emitting diode positioned on the substrate and including:
a first electrode;
a second electrode facing the first electrode; and
a first emitting material layer positioned between the first and second electrodes and including:
a first host of an anthracene derivative and
a first dopant of a 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, and C6 to C30 arylamino group,
wherein R11 to R14, each of R21 to R24, each of R31 to R35 and each of R41 to R45 satisfy at least one of i) at least one of R11 to R14 is deuterium, and at least one of the rest of R11 to R14 is C1 to C10 alkyl, ii) at least one of R21 to R24 is deuterium, and at least one of the rest of R11 to R14 is C1 to C10 alkyl, iii) at least one of R31 to R35 is deuterium, and at least one of the rest of R11 to R14 is C1 to C10 alkyl and iv) at least one of R41 to R45 is deuterium, and at least one of the rest of R11 to R14 is C1 to C10 alkyl, and
wherein R51 is selected from the group consisting of (i) C12 to C30 arylamino group unsubstituted or substituted with at least one of deuterium and C1 alkyl and (ii) non-substituted or deuterated carbazolyl.