Illuminating device, display device, and television receiving device

摘要

Provided is an illuminating device that is capable of improving use efficiency of cooling fluid used for cooling LEDs. An illuminating device (4) includes LEDs (13), a chassis (14) including a holding surface (14b) on which the LEDs are arranged in a matrix, cooling members (20) that are disposed on the chassis at positions associated with positions of the LEDs, each of the members including a channel (20a) inside, through which cooling fluid runs and a valve (21) opening and closing the channel, a radiator (22) performing heat exchange between the fluid and air, a pump (24) connected to the members and the radiator by pipes (25, 26) and circulating the fluid, an LED control unit (43) controlling driving of the LEDs, and cooling-member control units (44) controlling driving of the valves of the members associated with the LEDs based on the driving of the LEDs.

主权项

1. An illuminating device, the device comprising:
a plurality of LEDs; a chassis comprising a holding surface on which the LEDs are arranged in a matrix; a plurality of cooling members that are disposed on the chassis at positions associated with positions of the LEDs, each of the cooling members comprising:
a channel inside, through which cooling fluid runs; anda valve arranged to open and close the channel; a radiator arranged to perform heat exchange between the cooling fluid and air; a pump connected to the cooling members and the radiator by pipes, and arranged to circulate the cooling fluid; an LED control unit arranged to control driving of the LEDs; and cooling-member control units arranged to control driving of the valves of the cooling members associated with the LEDs based on the driving of the LEDs.