LIGHTING DEVICE, DISPLAY DEVICE, AND TELEVISION RECEPTION DEVICE

摘要

The present invention aims to prevent uneven brightness in a lighting device. A backlight device 12 according to an aspect of the present invention includes: an LED 17 as a light source; a chassis 14 having a bottom plate 14a arranged on a side opposite to a light output side with respect to the LED 17 and housing the LED 17; an optical member 15 arranged on the light output side away from the bottom plate 14a; a supporting portion 23 projecting from the side of the bottom plate 14a to the light output side and configured to support the optical member 15; and a reflection sheet 21 that is arranged between the bottom plate 14a and the optical member 15 and has a supporting portion through hole 21b through which the supporting portion 23 is inserted, and serves as a reflection member to reflect light. The reflection sheet 21 has a piece portion 29 defined by a slit 28 formed in the marginal part of the supporting portion through hole 21b.