| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light guide plate capable of eliminating unevenness of brightness in a light emitting face by preventing a shadow of a light source from being reflected on the light emitting face. <P>SOLUTION: The light guide plate 10 is provided with a light incident face 10a for a light to be made incident, the light emitting face 10b for the incident light from the light entrance face 10a to be emitted, and a non light emitting face 10c opposing to the light emitting face 10b. Then, a plurality of light deflection parts 26 to emit the light from the light emitting face 10b are formed on at least one of the light emitting face 10b or the non light emitting face 10c, and a plurality of linear light diffusion parts 28 to diffuse the light are formed at a part except the light deflection part 26 at least at one of the light emitting face 10b or the non light emitting face 10c. Therefore, when the light hits upon the light diffusion parts 28, the light is diffused in the direction nearly orthogonal to the longitudinal direction of the light diffusion parts 28. <P>COPYRIGHT: (C)2007,JPO&INPIT |
