ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,490,518, issued on Dec. 2, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Semiconductor device and display device" was invented by Hajime Kimura (Kanagawa, Japan) and Atsushi Umezaki (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device including a circuit which does not easily deteriorate is provided. The semiconductor device includes a first transistor, a second transistor, a first switch, a second switch, and a third switch. A first terminal of the first transistor is connected to a first wiring. A second terminal of the first transistor is connected to a second wiring. A gate and a first te...