ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,715, issued on June 23, was assigned to E Ink Holdings Inc. (Hsinchu, Taiwan).
"Thin film transistor array substrate and manufacturing method thereof" was invented by Ting-Yu Hsu (Hsinchu, Taiwan) and Wei-Tsung Chen (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A TFT array substrate includes a bottom plate, a first metal layer, an insulating layer, a semiconductor layer, a second metal layer, and a transparent electrode layer. The first metal layer is located on the bottom plate. The insulating layer covers the bottom plate and the first metal layer. The semiconductor layer is located on the insulating layer and overlaps a first po...