| 摘要 |
<p>A back face transmission screen constituted by sticking a front transparent sheet (2f) through adhesive to the front face, i.e. the observation side A, of a transparent plate (3), e.g. a show window glass, and sticking a wide-angle light diffusion (2r) through adhesive to the rear surface, i.e. the image projection side B, of the transparent plate (3) oppositely to the front transparent sheet (2f). The front transparent sheet (2f) has multiple micro protrusions (4) of triangular cross-section extending in the horizontal direction on the front face, a light shielding film (5) is formed on one side face of each triangular cross-section micro protrusion (4) directing upward (or downward) and the other side face (7) of each triangular cross-section micro protrusion can transmit light. A reflection image is not reflected on the surface of the screen on the observation side even under bright light and a high definition video having a sharp black level can be obtained and a back face transmission screen constituting a large screen is obtained.</p> |
