According to one embodiment, a flat panel display device includes a flat display panel having a pair of long sides and a pair of short sides, a face panel disposed in front of the flat display panel, a lenticular lens array disposed on an inner surface of the face panel, the inner surface facing the flat display panel, and an adhesive disposed along at least one of the pair of long sides of the flat display panel and attaching the flat display panel and the face panel to each other.