Display board and display device

Abstract

[Object] To switch display while reducing a difference in luminance between regions more. [Solution] Provided is a display board including: a first region that includes a metal film that is striped in a first direction; a second region that includes the metal film that is striped in a second direction, which is perpendicular to the first direction; a composite region that partially includes the metal film and transmits two types of illumination light, which have different polarization directions, at comparable rates; and a light shielding region that has a surface entirely covered with the metal film. In addition, provided is a display device including: the display board; and a light source that emits the two types of illumination light, which have different polarization directions, toward the display board.

Dependencies are inferred from the claim text.