US Patent Issued to LUMILEDS SINGAPORE on June 23 for "High efficacy polychromic light-emitting diode (LED)" (California Inventor)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,774, issued on June 23, was assigned to LUMILEDS SINGAPORE PTE. LTD. (Singapore).

"High efficacy polychromic light-emitting diode (LED)" was invented by Hisashi Masui (Newark, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting diode (LED) die comprises: a plurality of pixels, each of the pixels comprising respective groups of epitaxial stacks included in a microLED comprising one or more tunnel junctions and light emitting layers of different colors, the plurality of pixels comprising: a first set of pixels configured to emit a red light; a second set of pixels configured to emit a green light; a third set of pixels configured to...