| 摘要 |
PROBLEM TO BE SOLVED: To improve luminance while making drawing of a power supply wiring simple.SOLUTION: A backlight device 24 is provided with a light guide plate 20 which has a bottom plate 22a, a light incident face 20a installed on two side faces, and a light emitting face 20a installed on one plate face and of which the other plate face is arranged facing the front side of the bottom plate 22a, an LED 28 which is arranged on the front side of the bottom plate 22a with its light-emitting face opposed to the light incident face 20a, a power supply wiring 38 which supplies electric power to the LED 28, a reflection sheet 26 which is arranged in contact with one of plates of the light guide plate 20, and a wiring holder 40 which houses the power supply wiring 38, supports the light guide plate 20 and the reflection sheet 26 to the bottom plate 22a as it is arranged between the end part on the light incident face 20a side of the reflection sheet 26 and the bottom plate 22a with a part of it protruded to the LED 28 side rather than the light incident face 20a, and of which at least the upper face 40a facing the reflection sheet 26 side has a light reflectivity performance. |
