ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,755,707, issued on Oct. 6, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).
"Display device and electronic device" was invented by Atsushi Umezaki (Isehara, Japan) and Hajime Kimura (Atsugi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transistor whose channel region includes an oxide semiconductor is used as a pull down transistor. The band gap of the oxide semiconductor is 2.0 eV or more, preferably 2.5 eV or more, more preferably 3.0 eV or more. Thus, hot carrier degradation in the transistor can be suppressed. Accordingly, the circuit size of the semiconductor device including the pull down transistor can be made sm...