| 摘要 |
In order to suppress the occurrence of luminance unevenness in a lighting device, disclosed is a backlight device (12) provided with an LED (17) serving as a light source, a light guide member (19) an end of which the LED (17) is disposed so as to face, and a positioning part (23) capable of positioning the surface direction of the light guide member (19). An insertion recessed section (24) into which the positioning part (23) is inserted is formed in the end on the LED (17) side of the light guide member (19), and the insertion recessed section (24) tapers off in the direction that goes away from the LED (17). Consequently, it becomes more difficult for light from the LED (17) to get into the insertion recessed section (24) than when the insertion recessed section has a constant width. |
