US Patent Issued to Lumileds on Aug. 26 for "Two step phosphor deposition to make a matrix array" (Dutch, American, German Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,454, issued on Aug. 26, was assigned to Lumileds LLC (San Jose, Calif.).

"Two step phosphor deposition to make a matrix array" was invented by Marcel Rene Bohmer (Eindhoven, Netherlands), Jacques Heuts (Eindhoven, Netherlands), Ken Shimizu (Sunnyvale, Calif.) and Peter Josef Schmidt (Aachen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating closely spaced pcLEDs (100) arranged in a matrix array (200) of perpendicular rows and columns comprises an initial phosphor deposition step in which phosphor (803, 905) is deposited at alternating locations (pixels) in the matrix array in a checkerboard pattern, so that the locations...