A FILM RECORDED WITH CODE, READER USED THEREFOR, ELECTRONIC DEVICE EQUIPPED WITH DISPLAY COVERED WITH THE FILM

摘要

PURPOSE: A film in which a code is recorded, a reader, and an electronic device having a display device are provided to recognize a code by connecting a code pattern with a screen on a surface of transparent material. CONSTITUTION: A first lighting emitting unit(110-1) emits a light having a first wavelength. A second light emitting unit(110-2) irradiates the light having a second wavelength. A controlling unit controls the light of the first or second light emitting unit. A light receiving unit(150) receives the light having the second wavelength. If the light irradiates light having the first wavelength, a code is displayed in material for irradiating light having the second wavelength.