ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,697, issued on April 8, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).
"Transistor and display device" was invented by Shunpei Yamazaki (Setagaya, Japan), Toshinari Sasaki (Atsugi, Japan), Junichiro Sakata (Atsugi, Japan) and Masashi Tsubuku (Atsugi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is an object to manufacture a highly reliable display device using a thin film transistor having favorable electric characteristics and high reliability as a switching element. In a bottom gate thin film transistor including an amorphous oxide semiconductor, an oxide conductive layer having a crystal region is formed betw...