| 摘要 |
PROBLEM TO BE SOLVED: To provide a flat light source device having a luminous plane with more uniform brightness distribution. SOLUTION: Regarding A-A' direction, a light source 1 is arranged so that the brightness of the light source 1 becomes high at A side and low at A' side, and a light guide body 2 formed by molding is used so that the a gate 206 locates at the center of a side plane 205 of A' side which is opposite to the A-A' direction. |
