FIELD: electricity.
SUBSTANCE: backlight unit (12) includes LEDs as light sources, a LED board (18) on which LEDs are mounted, a frame (14), which holds the LED board (18) and has a connection opening (14e), a housing part (24), which clamps the LED board (18) between the housing part (24) and the frame (14) and holds the LED board (18), and a board-holding element (20), having a connection part (25) which protrudes from the housing part (24) towards the frame (14), so as to enter the connection opening (14e), and the board-holding element (20) is configured to rotate along the flat surface of the frame (14) between a holding position, in which the connection part (25) overlaps with the edge of the connection opening (14e) in the plan view, and presses the edge of the connection opening (14e) between the connection part (25) and the housing part (24), and a non-holding position in which the connection part (25) does not overlap with the edge of the connection opening (14e) in the plan view, and connection and disconnection of the connection part (25) from the connection opening (14e) is allowed.
EFFECT: improved holding and freeing of the light source board.
55 cl, 87 dwg
