US 12,408,541 B2
Method of fabricating quantum dots layer, substrate, and display apparatus
Zhuo Chen, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/905,668
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 1, 2021, PCT No. PCT/CN2021/134730
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2023/097540, PCT Pub. Date Jun. 8, 2023.
Prior Publication US 2024/0215426 A1, Jun. 27, 2024
Int. Cl. H10K 71/15 (2023.01); C09D 5/16 (2006.01); C09K 11/02 (2006.01); H10K 50/115 (2023.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); H10K 59/12 (2023.01)
CPC H10K 71/15 (2023.02) [C09D 5/1662 (2013.01); C09K 11/025 (2013.01); H10K 50/115 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 59/1201 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A method of fabricating quantum dots layer, comprising:
converting a plurality of first block regions of a substrate from having a first property into having a second property different from the first property, the first property being selected from hydrophilic, oleophilic, and hydro-oleophobic, the second property being selected from hydrophilic and oleophilic;
coating the plurality of first block regions with a first quantum dots material solution comprising a first ligand chelated to a first quantum dots material in a first solvent having the second property;
converting the plurality of first block regions from having the second property into having the first property, and converting a plurality of second block regions of the substrate from having the first property into having the second property; and
coating the plurality of second block regions with a second quantum dots material solution comprising a second ligand chelated to a second quantum dots material in a second solvent having the second property.