THERMOCHROMIC COATING SUBSTRATE HAVING IMPROVED SIGHT COGNIZACE EFFICIENCY

摘要

PURPOSE: A visibility improved thermochromic coated substrate is provided to enhance visibility for color change before and after phase transfer of the thermochromic coated substrate. CONSTITUTION: A visibility improved thermochromic coated substrate includes a substrate(100), a thermochromic thin film(200) and optical thin films(300). The thermochromic thin film is formed on the substrate. The optical thin film is formed on the upper and lower surfaces of the thermochromic thin film and has different refractive index from the refractive index of the thermochromic thin film. The thermochromic thin film is vanadium dioxide(VO2). The optical thin film is a transparent thin layer having the refractive index of 2 or greater at 550 nano meters wavelength.