Patent ID: 8736788

Claim:
A liquid crystal display device, comprising: a liquid crystal display panel having a rear surface to receive light and a front surface to emit the received light; a light guide plate positioned to face the rear surface of the liquid crystal display panel to receive light into the light guide plate and having a front surface to emit the received light to the rear surface of the liquid crystal display panel; an LED circuit substrate having a front surface to face at least one side of the light guide plate and having an LED disposed on the front surface of the LED circuit substrate to emit the light into the at least one side of the light guide plate; a first heat transmission member not directly contacting the light guide plate and having a first part including a first surface that faces the rear surface of the light guide plate and a second surface opposite the first surface, and a second part which extends from the first part and faces a rear surface of the LED circuit substrate; a second heat transmission member not directly contacting the light guide plate and having a first part including a first surface to face the rear surface of the light guide plate and a second surface opposite the first surface, and a second part to transfer heat away from the rear surface of the LED circuit substrate and including a surface to contact the first surface of the first heat transmission member, the second surface of the first part provided on at least the first surface of the first heat transmission member and located between the first surface of the first heat transmission member and the light guide plate, the second surface of the second heat transmission member having a surface area smaller than the second surface of the first heat transmission member; and a reflection element disposed between the light guide plate and the second heat transmission member.