Abstract: [Object] To provide an electronic device, a part mounting board, and an electronic apparatus that are capable of preventing warpage of a board from occurring. [Solving Means] An electronic device according to an embodiment of the present technology includes a first circuit board and a second circuit board. The first circuit board includes a first main surface, a second main surface, and a plurality of external terminals. The plurality of external terminals include a first terminal group located at an outermost periphery of the first main surface, and are arranged on the first main surface in a matrix pattern. The second circuit board includes a terminal surface facing the second main surface, and a plurality of connection terminals. The plurality of connection terminals include a second terminal group that is arranged on the terminal surface and faces at least a part of the first terminal group, and are electrically connected to the second main surface.

Abstract: There is provided an electronic device including a first member formed to include at least a part of a substrate material, a second member formed to include at least a part of the substrate material and configured to be relatively movable with respect to the first member, and a fuse configured to include at least a part of the substrate material and configured to electrically connect the first member to the second member via the substrate material.

Abstract: There is provided an electronic device including a first member formed to include at least a part of a substrate material, a second member formed to include at least a part of the substrate material and configured to be relatively movable with respect to the first member, and a fuse configured to include at least a part of the substrate material and configured to electrically connect the first member to the second member via the substrate material.

Abstract: Disclosed herein is an image display device including a light source and a scanner. The scanner includes (a) a first mirror on which a light beam emitted from the light source is incident, (b) a first light deflector on which the light beam output from the first mirror is incident and that outputs collimated light forming a first output angle depending on a first incident angle of the light beam in association with the pivoting of the first mirror, (c) a second mirror on which the collimated light output from the first light deflector is incident, and (d) a second light deflector on which the collimated light output from the second mirror is incident and that outputs collimated light forming a second output angle depending on a second incident angle of the collimated light in association with the pivoting of the second mirror.

Abstract: Disclosed herein is an image display device including a light source and a scanner. The scanner includes (a) a first mirror on which a light beam emitted from the light source is incident, (b) a first light deflector on which the light beam output from the first mirror is incident and that outputs collimated light forming a first output angle depending on a first incident angle of the light beam in association with the pivoting of the first mirror, (c) a second mirror on which the collimated light output from the first light deflector is incident, and (d) a second light deflector on which the collimated light output from the second mirror is incident and that outputs collimated light forming a second output angle depending on a second incident angle of the collimated light in association with the pivoting of the second mirror.