Patent · US Active

Self-supporting wavelength-converting phosphor layer

US12364070B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

LUMILEDS LLC · US

Inventors

Jens Meyer · Dresden, DE
Niels Jeroen VAN DER VEEN · Aachen, DE
Ronja Missong · Aachen, DE

Key dates

Filing date	Jul 21, 2022
Grant date	Jul 15, 2025
Priority date	—
Expiry date	Aug 8, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/0361
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A layer of multiple phosphor particles is formed on a surface of a substrate, and inorganic material is formed or deposited to embed at least partially the layer of phosphor particles on the substrate. A wavelength-converting layer is thus formed, including the phosphor particles and the inorganic material, that is then separated from the substrate. The inorganic material binds together the phosphor particles so that the wavelength-converting layer is self-supporting. In some examples, before separating the wavelength-converting layer from the substrate, a release member can be adhered to a surface of the wavelength-converting layer opposite the substrate; the wavelength-converting layer can remain adhered to the release member after separation from the substrate. In some examples the wavelength-converting layer can be adhered to a light-emitting surface of a semiconductor light-emitting device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.