US 12,012,539 B2
Quantum dot layer and manufacturing method thereof, quantum dot color filter, color filter substrate, display panel, and display device
Juanjuan You, Beijing (CN); and Li Sun, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 16/650,912
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Sep. 20, 2019, PCT No. PCT/CN2019/106941
§ 371(c)(1), (2) Date Mar. 26, 2020,
PCT Pub. No. WO2020/088142, PCT Pub. Date May 7, 2020.
Claims priority of application No. 201811266320.6 (CN), filed on Oct. 29, 2018.
Prior Publication US 2021/0222065 A1, Jul. 22, 2021
Int. Cl. C09K 11/54 (2006.01); C09K 11/62 (2006.01); C09K 11/89 (2006.01); G02F 1/133 (2006.01); G03F 7/00 (2006.01); G03F 7/095 (2006.01); H01L 21/02 (2006.01); H01L 33/50 (2010.01)
CPC C09K 11/892 (2013.01) [C09K 11/54 (2013.01); C09K 11/62 (2013.01); G03F 7/0007 (2013.01); G03F 7/0955 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A manufacturing method, comprising:
performing lyophobic treatment on a first specified region of a first transparent layer, the first transparent layer comprising regions corresponding to a plurality of pixel regions, each pixel region of the plurality of pixel regions comprising a first subpixel region and a region other than the first subpixel region, the first specified region corresponding to the region other than the first subpixel region, and the region other than the first subpixel region comprises a second subpixel region;
preparing a lyophilic first quantum dot solution on the first transparent layer to form a first quantum dot sublayer in a region that corresponds to the first subpixel region and is not subjected to the lyophobic treatment,
forming a second transparent layer after forming the first quantum dot sublayer;
performing lyophobic treatment on a second specified region of the second transparent layer, the second specified region corresponding to a region other than the second subpixel region; and
preparing a lyophilic second quantum dot solution on the second transparent layer to form a second quantum dot sublayer in a region that corresponds to the second subpixel region and is not subjected to the lyophobic treatment.