ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,548, issued on June 24, was assigned to SEIKO EPSON Corp. (Tokyo).

"Electro-optical device and electronic device" was invented by Hiroyuki Oikawa (Chitose, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electro-optical device includes a substrate, a transistor including a semiconductor layer including a drain region, a source region, and a channel region and extending in a first direction, and a gate electrode, a scanning line, and a first light-blocking part, wherein the substrate, the semiconductor layer, the gate electrode, and a layer at which the scanning line is provided are arranged in a second direction, the first light-blocking par...