Lighting device and display device having side emitting light source and light guide

A lighting device comprising:

• at least one light source being a side emitting-type light source, the at least one light source including a mounting surface and a light emitting surface, the mounting surface including a light source-side terminal, the light emitting surface being located on a side of the mounting surface;
• a light guide plate that is a plate-shaped member including:
• a light entering end surface being an end surface of the plate-shaped member, the light entering end surface being opposed to the light emitting surface and through which light rays from the at least one light source enter;
• a light exiting plate surface being a first plate surface of the plate-shaped member and through which the light rays having entered through the light entering end surface exit;
• and
• an opposite plate surface being a second plate surface of the plate-shaped member;
• and
• a light source board on which the at least one light source is mounted, the light source board including:
• a plate surface attached to an edge of the opposite plate surface of the light guide plate on a light entering surface side or an edge of the light exiting plate surface on a light entering surface side;
• and
• a board-side terminal formed on the plate surface and connected to the light source-side terminal, wherein
• the light emitting surface of the at least one light source and the light entering end surface of the light guide plate are opposed to each other with a gap,
• the at least one light source includes a light emitting surface having a dimension in a thickness direction of the light guide plate smaller than a dimension of the light entering end surface in the thickness direction, and
• the at least one light source is disposed such that a center of the light emitting surface is opposed to a center of the light entering end surface,
• the light source board includes a light guide plate overlapping section and a light source mounting section overlapping the light guide plate and the light source in the thickness direction of the light guide plate, respectively,
• the light source mounting section includes:
• a trace formed in a pattern from a first conductive layer and connected to the light source-side terminal via the board-side terminal;
• a supporting layer supporting the trace from an opposite side from the light source;
• and
• an elevating layer including a plurality of layers including a second conductive layer that connects the trace to the board-side terminal, the elevating layer elevating the board-side terminal from the supporting layer, and
• the light guide plate overlapping section includes the trace and the supporting layer but not include the elevating layer.