According to one embodiment, the electronic device includes: a heating element that has: a first electronic part; and a plurality of connection terminals provided around the first electronic part; a first circuit board that has: a first surface; a second surface opposite to the first surface; an opening; and a plurality of pads provided around the opening at the first surface to be electrically connected with the connection terminals, respectively; a heat receiving member that has a heat receiving portion faced to the heating element and that is thermally connected to the heating element; a pressing member that presses the heat receiving member toward the first circuit board; and a support member that supports the first circuit board at a periphery of the opening from the second surface.