US 12,283,647 B2
Chelating agents for quantum dot precursor materials in color conversion layers for micro-LEDs
Yingdong Luo, Newark, CA (US); Daihua Zhang, Los Altos, CA (US); Hou T. Ng, Campbell, CA (US); Sivapackia Ganapathiappan, Los Altos, CA (US); and Nag B. Patibandla, Pleasanton, CA (US)
Assigned to Applied Materials, Inc., Santa Clara, CA (US)
Filed by Applied Materials, Inc., Santa Clara, CA (US)
Filed on Feb. 16, 2024, as Appl. No. 18/444,277.
Application 18/444,277 is a continuation of application No. 17/901,831, filed on Sep. 1, 2022, granted, now 11,908,979.
Application 17/901,831 is a continuation of application No. 17/006,624, filed on Aug. 28, 2020, granted, now 11,646,397, issued on May 9, 2023.
Prior Publication US 2024/0194836 A1, Jun. 13, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 33/50 (2010.01); H01L 27/15 (2006.01); H01L 33/30 (2010.01)
CPC H01L 33/504 (2013.01) [H01L 27/156 (2013.01); H01L 33/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a plurality of light-emitting diodes; and
a cured composition in contact with a surface through which radiation in a first wavelength band in the UV or visible light range is emitted from each of the light-emitting diodes, wherein the cured composition includes
quantum dots selected to emit radiation in a second wavelength band in the visible light range in response to absorption of the radiation in the first wavelength band from each of the light-emitting diodes,
quantum dot precursor materials, wherein the quantum dot precursor materials comprise metal atoms or metal ions corresponding to metal components present in the quantum dots,
mono-thiol, di-thiol, thiocarbamate, dithiocarbamate, thiocarbonate, or thiourea bound to the quantum dot precursor materials,
a photopolymer, and
components of a photoinitiator that initiated polymerization of the photopolymer.