IMAGE DISPLAY APPARATUS AND NON-PLANAR SCREEN

摘要

To obtain images with a higher ANSI contrast compared to that of the related art. A hemispherical hologram screen includes a hologram recording medium arranged on a projection surface. The hologram recording medium records a hologram recording image having diffusion characteristics to diffuse the projection image light that is incident on the hologram recording medium as a first diffusion light in a predetermined angle range towards an area range where a viewer is present, the viewer observing an image from the non-planar screen. A hemispherical hologram screen reproduces the hologram recording image from the hologram recording medium using the projection image light as a reference light to emit the first diffusion light.

主权项

1. An image display apparatus comprising:
a non-planar screen having a hologram recording medium arranged on a projection surface; and an image projection apparatus that projects projection image light modulated according to an image signal of an image to be displayed onto the projection surface of the non-planar screen, wherein:
the hologram recording medium records a hologram recording image having diffusion characteristics to diffuse the projection image light that is incident on the hologram recording medium as a first diffusion light in a predetermined angle range towards an area range where a viewer is present, the viewer observing an image from the non-planar screen, andthe non-planar screen reproduces the hologram recording image from the hologram recording medium using the projection image light as a reference light, thus causing the hologram recording medium to emit the first diffusion light to display an image.