17 Electrochromic plastic films; electrochromic plastic films for use on vehicles, automobiles, trains, subways, airplanes, buildings, windows, mirrors, screens, phones, partitions, skylights, roofs, walls, window blinds with variable light transmittance, cameras, optical glasses, ski glasses, protective glasses, anti-glare glasses, reading glasses, smart glasses, eyeglasses, sunglasses, sports glasses, microscopes, furniture, and display stands; electrochromic plastic film that can be attached to the glass directly for automobiles, trains, buildings, windows, walls, phones, airplanes, furniture, and display stands