| 摘要 |
<p>A display device for use in an illuminated display system has a transparent medium (22) with the first and second opposing surfaces (24, 25) to be illuminated in use. At least one (24) of the first and second opposing surfaces has a matrix (30) of spots (32) each having a hollow transparent interior (33) substantially covering at least a major portion of surface to be illuminated for providing an even and increased illumination throughout that portion of the respective surface. The matrix of spots does not form a part of a message or information to be illuminated.</p> |
