METHOD FOR DISPLAYING COLOR LATENT IMAGE, AND COLOR LATENT IMAGE DISPLAY UNIT

摘要

PROBLEM TO BE SOLVED: To obtain a display unit for repeatedly reproducing or displaying a color image with a color tone similar to that of an original or a color tone different from that of the original under predetermined visually recognizing conditions by forming the image of an arbitrary color tone with a desired gradation as a latent image to become secret information. SOLUTION: Basic color elements (e) are laid at each unit pixel E according to color information of a color image to displayed on a color display surface O constituted by the pixel E for representing a desired gradation in which a group of fine basic color elements (e) made of a predetermined shape are alternately disposed without gap. Then, a functional color material Z exhibiting a colorless transparent state is lap printed in a normal state on an area except the laid elements (e) or an area made of the laid elements (e).