Display switching device, button device for game machine, and switch

A display switching device for switching display images by switching light illumination from a plurality of light source positions, the display switching device comprising:

• a lens array including a plurality of lenses configured to allow passage of light from the plurality of light source positions;
• a display layer including a plurality of pixel regions configured to allow passage of light collected on the plurality of lenses comprised in the lens array;
• and a diffusion layer located opposite to the plurality of light source positions with the lens array in between, the diffusion layer being configured to diffuse passing light, wherein the diffusion layer optically adheres to a layer adjacent to one of two surfaces of the diffusion layer nearer the plurality of light source positions, or the diffusion layer and the layer adjacent to one of two surfaces of the diffusion layer nearer the plurality of light source positions comprise a same material, and the diffusion layer has a thickness 0.3 times or less a lens pitch of the plurality of lenses comprised in the lens array when the diffusion layer has a haze of 98% or less.