in the autostereoscopic display which provides with the display with non - luminescence area between blue , red , green forms between each pixel and the each pixel , each display parts , the lens sheet where a lot of lenses were displayed , and the diffusion board placed between the above mentioned display and the above mentioned lens sheet , characterized by putting cut along the non - luminescence area on the above mentioned diffusion board from display side along the non - luminescence area between each pixel .