| 摘要 |
<p>A backlight unit 12 includes LEDs 16, light guide plates 18, LED boards 17, clips 23 and locking structures. Each light guide plate 18 has a light entrance surface 34 and a light exit surface 36. The light entrance surface 34 faces the LED 16. Light from the LED 16 enters the light entrance surface 34. The light exit surface 36 is parallel to a Y-axis direction. The light exits from the light exit surface 36. The light guide plates 18 are arranged in lines along the Y-axis direction so as to overlap one another in a Z-axis direction. The LEDs 16 and the light guide plates 18 are mounted to the LED boards 17. The light guide plates 18 are fixed to the LED boards 17 with the clips 23 and held in initial conditions in which they are mounted. The light guide plates 18 that overlap one another include a first light guide plate 18A and a second light guide plate 18B. The first light guide plate 18A is arranged on a rear-surface side with respect to the second light guide plate 18B. The second light guide plate 18B is arranged on a front-surface side with respect to the first light guide plate 18A. The locking structures are provided in the clips 23 that fix the fist light guide plate 18A and the second light guide plate 18B, respectively. The locking structures are configured to restrict a relative movement of the second light guide plate 18B in the X-axis direction and the Y-axis direction.</p> |
