US 11,728,464 B2
Light emitting element, manufacturing method thereof, and composition including the same
Jong Won Park, Yongin-si (KR); Chang Hee Lee, Yongin-si (KR); Duk Ki Kim, Yongin-si (KR); Yun Ku Jung, Yongin-si (KR); Yun Hyuk Ko, Yongin-si (KR); and Jae Kook Ha, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 21, 2020, as Appl. No. 16/935,095.
Claims priority of application No. 10-2020-0006124 (KR), filed on Jan. 16, 2020.
Prior Publication US 2021/0226103 A1, Jul. 22, 2021
Int. Cl. H01L 33/56 (2010.01); H01L 33/36 (2010.01); C08G 61/10 (2006.01); C08L 47/00 (2006.01); C08L 65/02 (2006.01); H01L 33/00 (2010.01)
CPC H01L 33/56 (2013.01) [C08G 61/10 (2013.01); C08L 47/00 (2013.01); C08L 65/02 (2013.01); H01L 33/0095 (2013.01); H01L 33/36 (2013.01); C08G 2261/3142 (2013.01); H01L 2933/005 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A light emitting element comprising:
a first semiconductor layer;
an active layer on the first semiconductor layer;
a second semiconductor layer on the active layer;
an insulating film surrounding an outer peripheral surface of each of the first semiconductor layer, the active layer and the second semiconductor layer; and
a polymer film including a polymer chain and on at least a portion of a surface of the insulating film,
wherein the polymer chain includes:
i) a repeat unit represented by a following Chemical Formula 1 Chemical Formula 1

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 1, each of R2 and R2′ is independently hydrogen, a C1-C20 alkyl group, a C2-C20 ether group, a C2-C20 ester group, a C1-C20 amine group, a C2-C20 amide group, a hydroxyl group, a C1-C20 alkoxy group, a urethane group, a urea group, an imide group, an acryl group, or a thiol group,
ii) a repeat unit represented by a following Chemical Formula 2 Chemical Formula 2

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 2, each of R3 and R3′ is independently hydrogen, a C1-C20 alkyl group, a C2-C20 ether group, a C2-C20 ester group, a C1-C20 amine group, a C2-C20 amide group, a hydroxyl group, a C1-C20 alkoxy group, a urethane group, a urea group, an imide group, an acryl group, or a thiol group, or
iii) a repeat unit represented by a following Chemical Formula 3 Chemical Formula 3

OG Complex Work Unit Chemistry
wherein, in Chemical Formula 3, each of R4 and R4′ is independently hydrogen, a C1-C20 alkyl group, a C2-C20 ether group, a C2-C20 ester group, a C1-C20 amine group, a C2-C20 amide group, a hydroxyl group, a C1-C20 alkoxy group, a urethane group, a urea group, an imide group, an acryl group, or a thiol group.