US 11,968,874 B2
Organic light-emitting display device including quantum dots
Jea Gun Park, Seongnam-si (KR); Seung Jae Lee, Seoul (KR); Ji Eun Lee, Seoul (KR); and Seo Yun Kim, Seoul (KR)
Assigned to IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
Appl. No. 16/963,096
Filed by IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul (KR)
PCT Filed May 26, 2020, PCT No. PCT/KR2020/006770
§ 371(c)(1), (2) Date Jul. 17, 2020,
PCT Pub. No. WO2021/020705, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10-2019-0091031 (KR), filed on Jul. 26, 2019.
Prior Publication US 2021/0408418 A1, Dec. 30, 2021
Int. Cl. H10K 59/38 (2023.01); G02B 5/20 (2006.01); H10K 50/115 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/38 (2023.02) [G02B 5/20 (2013.01); H10K 50/115 (2023.02); H10K 59/12 (2023.02); H10K 2102/331 (2023.02)] 4 Claims
OG exemplary drawing
 
1. An organic light-emitting display device, comprising:
a lower substrate comprising a driving transistor formed on a surface thereof;
an organic light-emitting element interlocked with the driving transistor; and
an RGB color filter layer formed on the organic light-emitting element and provided with core-shell structured quantum dots that absorb light and emit the absorbed light in a form of visible light in a specific wavelength range,
wherein each of the core-shell structured quantum dots is configured such that the structure thereof is configured to be controlled by the composition thereof,
wherein the organic light emitting element is a blue organic light emitting diode,
wherein the RGB color filter layer includes: a red color filter including first core-shell structured quantum dots, of the core-shell structured quantum dots. emitting red light; and a green color filter having second core-shell structured quantum dots, of the core-shell structured quantum dots, emitting green light; and a blue color filter including third core-shell structured quantum dots, of the core-shell structured quantum dots, emitting blue light, and
wherein a core material of each of the first core-shell structured quantum dots is composed of one or more of group 13 and group 15 elements,
wherein the first second and third core-shell structured quantum dots each contain ligands on their surface,
wherein the ligands are perfluorooctanoic acid (PFOA),
wherein the first core-shell structured quantum dots have a core/shell structure of InP/ZnSe/ZnS: and
wherein the second core-shell structured quantum dots have a core/shell structure of InP/ZnSe/ZnSeS/ZnS.