| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-luminance light guide plate having integrated light diffusing functions suitable for a display device used for office automation equipment such as a personal computer and a word processor, various monitors which display image signals, e.g. a panel monitor, a television monitor, etc., a display device used for an indoor- or outdoor-space illumination device, a signboard, etc. <P>SOLUTION: The light guide body is characterized in that at least one side end surface of an edge write type transparent thermoplastic resin substrate having a light source arranged on at least one or more side end surfaces of a surface light source device transparent substrate is a light incidence surface and one surface crossing the light incidence surface at right angles is a light projection surface; and many convex lens arrays which are mutually connected at right angles to the light incidence surface and extend are formed on at least one of the light projection surface and its reverse surface and the section of the unit convex lens shapes parallel to the light incidence surface is of 0.6 to 2.0 in the ratio of a radius of curvature and the convex lens array pitch. <P>COPYRIGHT: (C)2003,JPO |
