US Patent Issued to SEOUL VIOSYS on April 14 for "Mixed color light emitting device" (South Korean Inventor)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,561, issued on April 14, was assigned to SEOUL VIOSYS Co. LTD. (Ansan-si, South Korea).

"Mixed color light emitting device" was invented by Chung Hoon Lee (Ansan-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light emitting device including a first semiconductor stacked structure configured to emit multi-color light, and a red light source configured to emit red light, in which the first semiconductor stacked structure includes a first conductivity-type nitride semiconductor layer, an active layer disposed on the first conductivity-type nitride semiconductor layer, and a second conductivity-type nitride semiconductor layer dispose...