| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure to correct the emitting field of a light guide plate and improve balance of emission of the light guide plate. SOLUTION: This is a structure to correct emitting field of a light guide plate, and the light-guide plate consists of an incident face, a reflecting face, and an emitting face. The emitting face has a light guide structure in which a large number of light direction is vertical to a lamp source. The light guide structure at a second side (upper) edge region is made of a V-shape with a long oblique side and a short oblique side, and the long oblique side is near the side edge direction of the light guide plate, and the included angle made by the long side and the emitting face of the light guide plate is smaller than the included angle made by the short side and the emitting face, and further, the included angle made by the long side and the emitting face in the light guide structure near the light guide plate side edge becomes smaller, and when the emitting light source enters into the long oblique side and is refracted, the refracted light is separated from a normal and the light source is corrected in a right direction and the balance of emission of the light guide plate is improved. COPYRIGHT: (C)2009,JPO&INPIT
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