The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Jun. 29, 2021
Lumileds Llc, San Jose, CA (US);
Jens Meyer, Cologne, DE;
Andreas Tücks, Aachen, DE;
Peter Josef Schmidt, Aachen, DE;
Erik Roeling, Son, NL;
LUMILEDS LLC, San Jose, CA (US);
Abstract
The invention provides a method for providing a luminescent particle () with a hybrid coating, the method comprising: (i) providing a luminescent core () comprising a primer layer () on the luminescent core (); (ii) providing a main ALD coating layer () onto the primer layer () by application of a main atomic layer deposition process, the main ALD coating layer () comprising a multilayer () with two or more layers () having different chemical compositions, and wherein in the main atomic layer deposition process a metal oxide precursor is selected from a group of metal oxide precursors comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V; (iii) providing a main sol-gel coating layer () onto the main ALD-coating layer () by application of a main sol-gel coating process, the main sol-gel coating layer () having a chemical composition different from one or more of the layers () of the multilayer ().