| 摘要 |
In a lighting device, uneven brightness may be suppressed at low cost. A backlight unit 12 includes: an LED 17; a chassis 14 including a bottom plate 14a provided on a side opposite to a light exit side relative to the LED 17, the chassis 14 housing the LED 17; and a first reflection sheet 22 reflecting light. The first reflection sheet 22 includes a quadrangular bottom 24 extending along the bottom plate 14a, and two raised portions 25 and 26 each of which is raised from each of adjacent two sides of the bottom 24 toward the light exit side, a joint J provided between adjacent two side edges 25a and 26b of the raised portions 25 and 26. In the backlight unit 12, the side edge 25a of the first raised portion 25 of the raised portions 25 and 26 includes a facing portion 28 that faces the side edge 26a of the second raised portion 26 in a direction in which the first raised portion 25 is raised from the bottom 24 (outward in a Y-axis direction), and the first raised portion 25 and the facing portion 28 bulge toward the light exit side.
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