To provide a light guide plate which reduces luminance unevenness and hot spots while securing high luminance.

A light guide plate is provided with: first optical elements 54 which are formed on a first main surface 50a and in unit shapes of a plurality of light deflection elements deflecting light inside the light guide plate 5 to a second main surface 50b side; and second optical elements 55 which are light confinement lenses formed on a second main surface 50b and regulate an optical path of light propagating in a conductor 5. Between adjacent second optical elements 55 is formed a flat part 56.