A display device of the present invention includes a light source apparatus and a rear light transmitting module disposed opposite a first light emitting surface of the light source apparatus. The rear light transmitting module includes a first transmitting layer and a second transmitting layer. The first transmitting layer has a plurality of first prisms arranged side by side and respectively protruding toward the first light emitting surface. The second transmitting layer is overlapped with the first transmitting layer on one side thereof opposite the first light emitting surface, and has a plurality of second prisms arranged side by side and respectively protruding toward the first transmitting layer. A vertical projection range of the first prisms on the first light emitting surface is misaligned with a vertical projection range of the second prisms on the first light emitting surface.