The surface light source device and a display device using the surface light source device
2013
The present invention relates to a surface light source device and a display device using the surface light source device having a point light source (1) and a guide plate (2), the light guide plate (2) has a convex configuration on the incident surface side (21), the convex structure ( 21) or from the exit side opposite the reflection side of the exit surface is convex to come forward, the point light source (1) arranging a plurality of convex configuration (21) is configured to, on the surface of a plurality of dots along a helical cylindrical semicircular uniform light source (1) are arranged in the arrangement direction and protrudes, point light sources (1) arranged adjacent to the line of intersection of the inclined cylinder and the point light source (1) in the center.
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