US 11,943,987 B2
Color conversion substrate
Gak Seok Lee, Hwaseong-si (KR); Byung Chul Kim, Suwon-si (KR); In Ok Kim, Osan-si (KR); Jae Min Seong, Suwon-si (KR); In Seok Song, Pocheon-si (KR); Keun Chan Oh, Hwaseong-si (KR); Ji Eun Jang, Suwon-si (KR); Chang Soon Jang, Seoul (KR); Sun Kyu Joo, Suwon-si (KR); and Ha Lim Ji, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 11, 2020, as Appl. No. 16/899,078.
Claims priority of application No. 10-2019-0079412 (KR), filed on Jul. 2, 2019.
Prior Publication US 2021/0005672 A1, Jan. 7, 2021
Int. Cl. H10K 59/38 (2023.01); H10K 50/86 (2023.01)
CPC H10K 59/38 (2023.02) [H10K 50/865 (2023.02)] 24 Claims
OG exemplary drawing
 
1. A color conversion substrate, comprising:
a base substrate;
a first color filter and a second color filter disposed on a surface of the base substrate;
a capping layer disposed on the first color filter, the second color filter and the surface of the base substrate;
a first partition layer disposed on the capping layer, and overlapping the first color filter and the second color filter;
a second partition layer disposed on the first partition layer;
a first wavelength conversion pattern disposed on the first color filter; and
a second wavelength conversion pattern disposed on the second color filter, wherein
the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter, and
an upper surface of the first partition layer is greater than a lower surface of the second partition layer,
wherein the second partition layer overlaps at least a portion of the first color filter and the second color filter, and is spaced apart from the first color filter and the second color filter,
the lower surface of the capping layer is in direct contact with the first color filter and the second color filter, and
the upper surface of the capping layer is in direct contact with the lower surface of the first partition layer.