1997 Volume 163 Pages 34-39
We developed a display device for motion picture. The display elements of each dot are composed of rotors of small stepping motors and are able to display one of four colors such as cyan, magenta, white and yellow. The stators, coils and magnetic circuits are arranged compactly in the cylindrical display element. The display elements are able to rotate and stop rapidly because they have small inertia and are well fitted to drive pulses. We made two display devices with the dot pitches of 6 mm and 20 mm, and they can display 30 frames and 15 frames of picturs per second, respectively.
