| 摘要 |
A display device includes a light guide plate. A light incident on the light guide plate from a linear light source is reflected by a wall surface forming each of grooves and irradiated onto a liquid crystal panel unit. Furthermore, a light striking the wall surface at an incident angle equal to or less than a critical angle is transmitted through the wall surface; however, a part of a transmitted light comes again into the light guide plate through another wall surface, and another part of the transmitted light travels straight outwardly without striking the wall surface. |
