US 12,268,075 B2
Color transformation substrate and display device
Jae Min Seong, Suwon-si (KR); Keun Chan Oh, Hwaseong-si (KR); Gak Seok Lee, Hwaseong-si (KR); Sun Kyu Joo, Suwon-si (KR); Byung Chul Kim, Suwon-si (KR); In Ok Kim, Osan-si (KR); In Seok Song, Pocheon-si (KR); Ji Eun Jang, Suwon-si (KR); and Chang Soon Jang, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Appl. No. 17/419,982
Filed by Samsung Display Co., LTD., Yongin-si (KR)
PCT Filed Mar. 13, 2019, PCT No. PCT/KR2019/002865
§ 371(c)(1), (2) Date Jun. 30, 2021,
PCT Pub. No. WO2020/141651, PCT Pub. Date Jul. 9, 2020.
Claims priority of application No. 10-2018-0174245 (KR), filed on Dec. 31, 2018.
Prior Publication US 2022/0085114 A1, Mar. 17, 2022
Int. Cl. H01L 27/32 (2006.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01)
CPC H10K 59/38 (2023.02) [H10K 50/865 (2023.02); H10K 59/12 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A color conversion substrate comprising:
a base portion in which a first light-blocking area, a second light-blocking area, a first light-transmitting area, a second light-transmitting area, and a third light-transmitting area are defined, wherein the first light-transmitting area, the second light-transmitting area, and the third light-transmitting area are sequentially disposed along a first direction;
a first color filter disposed on the base portion and disposed in the first light-transmitting area;
a second color filter disposed on the base portion and disposed in the second light-transmitting area;
a third color filter disposed on the base portion and disposed in the third light-transmitting area;
a light-blocking member including a first light-blocking member which is disposed on the base portion, disposed in the first light-blocking area, and includes a portion in contact with the base portion;
a color pattern including a first color pattern which is disposed on the base portion, disposed in the second light-blocking area, and in contact with the base portion;
a first capping layer disposed on the base portion and covering the first color filter, the second color filter, the third color filter, the light-blocking member, and the color pattern, wherein the first capping layer is made of an inorganic material;
a light-transmitting pattern disposed on the first color filter, wherein the light-transmitting pattern includes a base resin and a scatterer disposed in the base resin;
a first wavelength conversion pattern disposed on the second color filter and which wavelength-converts light of a first color into light of a second color; and
a second wavelength conversion pattern disposed on the third color filter and which wavelength-converts the light of the first color into light of a third color, wherein the light of the third color is different from the light of the second color,
wherein the color pattern and the first color filter include a same colorant,
wherein the light-transmitting pattern, the first wavelength conversion pattern, and the second wavelength conversion pattern are disposed on the first capping layer.