US Patent Issued to Semiconductor Energy Laboratory on March 3 for "Display device and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,351, issued on March 3, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).

"Display device and electronic device" was invented by Susumu Kawashima (Atsugi, Japan), Koji Kusunoki (Isehara, Japan), Tomoaki Atsumi (Hadano, Japan) and Naoto Kusumoto (Isehara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A display device whose change in chromaticity is small and grayscale controllability is high is provided. The display device can turn on and turn off a light-emitting device by PAM and PWM control (a pulse width control involving changes in amplitude). The display device writes the same input signal (data potential) to a fi...