A portable information device includes a first support plate fixed to a first chassis member; a second support plate fixed to a second chassis member and provided adjacent to the first support plate; a display whose rear surface is supported by a front surface of the first support plate and the second support plate; and an adhesive member configured to fix the front surface of the first support plate and the second support plate and the rear surface of the display. The adhesive member has a first adhesive layer adhered to the rear surface of the display; and a second adhesive layer adhered to a part of the front surface of the first support plate and the second support plate and including a non-adhesive portion provided in at least a range overlapping with a bending region.