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:
Aug. 26, 2025
Filed:
Dec. 17, 2019
Lumileds Llc, San Jose, CA (US);
Marcel Rene Bohmer, Eindhoven, NL;
Jacques Heuts, Eindhoven, NL;
Ken Shimizu, Sunnyvale, CA (US);
Peter Josef Schmidt, Aachen, DE;
Lumileds LLC, San Jose, CA (US);
Abstract
A method of fabricating closely spaced pcLEDs () arranged in a matrix array () of perpendicular rows and columns comprises an initial phosphor deposition step in which phosphor () is deposited at alternating locations (pixels) in the matrix array in a checkerboard pattern, so that the locations () in the array at which phosphor () is deposited are not adjacent to each other. In a subsequent phosphor deposition step phosphor is deposited at the alternating locations at which phosphor was not deposited in the first deposition step. In between the two phosphor deposition steps, reflective or scattering structures () may be fabricated on sidewalls of the phosphor pixels to optically isolate pcLEDs in the resulting array from each other.