Lighting device, electronic device, frame construction, and method for manufacturing the frame construction

The invention provides a lighting device, an electronic device, a frame construction, and a method for manufacturing the frame construction, which can inhibit removal of a plate-shaped part made of metals for reinforce from a resin-made frame body. An area light source device has a light guide plate, an LED configured at the side surface of the light guide plate, and the frame construction for keeping the light guide plate and the LED. The frame construction includes the metal-made plate-shaped part configured at a back side of the light guide plate, and the resin-made frame body configured at an edge portion of the plate-shaped part. A perforation part with an opening is formed in the plate-shaped part and includes an expanding part of which an opening diameter gradually expands from the surface side to the bottom in a depth direction; and a hole shrinkage part of which an opening diameter gradually shrinks from the surface side to the bottom in the depth direction. The expanding part is formed on the surfac