| 摘要 |
<P>PROBLEM TO BE SOLVED: To make light volume unevenness hard to occur even if light source parts 14 are displaced from a light guide plate 12 in its thickness direction. <P>SOLUTION: The light source parts 14 adjacent to each other in a width direction X among a plurality of them are shifted in a thickness direction Y of the light guide plate 12. With this, a light volume distribution is scattered in the thickness direction Y of the light guide plate 12 to have a light volume peak reduced. Therefore, a light volume unevenness is hard to occur, even if the light source parts 14 are displaced from the light guide plate 12 in its thickness direction Y. <P>COPYRIGHT: (C)2011,JPO&INPIT |
