TRANSPARENT PLATE, DISPLAY PLATE FOR DISPLAY SYSTEM AND DISPLAY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a transparent plate, a display plate and a display system for obtaining a visual effect varying a visually recognized pattern by day and night, an observed position, or by day and night and the observed position and not by a display panel with many restrictions.SOLUTION: A transparent plate 10 and a display plate 20 have a pattern like reflection preventing region 2A and a non reflection preventing region 2B on at least one of surfaces 1a of a transparent substrate 1, the pattern like reflection prevention region has reflection prevention fine irregularities 3, the reflection prevention fine irregularities are formed by a minute projections group 4G which is a cluster of numerous minute projections 4 and the maximum distance between projections Dave of the minute projections for a maximum wavelengthλmax of visual light is Dave≤λmax. Preferably, the minute projections group includes high-low fine projection group having low height fine projections surrounded by high height fine projections. A display system has a display plate for this display system and a light source for radiating the display plate for this display system.