| 摘要 |
<p>A visual display arrangement comprises a panel having an image-providing part (14) and a light-transmitting prismatic sheet (16) arranged over the exposed front part of the display. The sheet (16) may, for example, have an array of parallel generally horizontal ribs (18, 20) each of generally triangular cross-section in a vertical plane perpendicular to the plane of the display such that image information-bearing light from the image-providing part can pass through the sheet to the observer with relatively small deviation, whilst light emanating from the region above and to the front of the display, from a range of angles relative to the display, upon striking the surface relief will be reflected thereby, so that a significant proportion of the reflected ambient light will be redirected away from the line of sight of the observer.</p> |
