| 摘要 |
A liquid crystal display (LCD) includes a backlight module and a heat dissipation device. The backlight module includes a frame, a reflector and several light sources. The reflector is disposed on the frame. The light sources disposed above the reflector. The heat dissipation device includes a fan, a sensor and a controller. The sensor is for sensing internal temperature of the LCD. The controller is connected to the fan and is for controlling the rotating speed of the fan according to the internal temperature of the LCD.
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