A method of manufacturing a three dimensional image display device includes bonding a lens plate having a lenticular lens to a display panel configured to display an image, with a partially-discontinuous frame-shaped adhesive member interposed in between while having the lenticular lens facing the display panel. The method also includes depressurizing a hermetic inner space formed by the display panel, the adhesive member, and the lens plate, and sealing an opening section communicating with the inner space.