A liquid crystal display device includes: a liquid crystal panel; a reflection sheet arranged on a rear surface side of the liquid crystal panel, the reflection sheet being curved so that a surface facing the liquid crystal panel is recessed; and a light emitting diode substrate including: a light emitting diode array in which a plurality of light emitting diodes are arranged along a longitudinal direction; and electrodes connected to the plurality of light emitting diodes. In a circle which is centered at one light emitting diode and whose diameter is a distance from the one light emitting diode to another light emitting diode adjacent to the one light emitting diode, an area of the electrode connected to a high temperature side electrode of the one light emitting diode is larger than an area of the electrode connected to a low temperature side electrode of the one light emitting diode.