In a liquid crystal display device including a liquid crystal panel displaying an image and an LED and an IC driver which is a heat generating component generating heat during operation, the liquid crystal panel includes a pair of substrates that are disposed opposite each other, and a liquid crystal layer containing liquid crystal molecules and sealed between the pair of substrates, and a transparent thermal conducing sheet is disposed such that a part thereof is continuous from the LED and the IC driver and another part thereof is directly in contact with a TFT substrate to cover a display area.