Method for manufacturing planar light source

A method for manufacturing a planar light source, the method comprising:

• preparing a wiring substrate including a first region that includes a light source placement section;
• disposing a light-reflective member in the first region of the wiring substrate;
• preparing a transmissive light guide plate including
• a first major surface,
• a second major surface opposite to the first major surface, and
• a first hole extending from the first major surface to the second major surface;
• disposing a light source on the light-reflective member at the light source placement section, and bonding the light source on the wiring substrate;
• after bonding the light source on the wiring substrate, disposing the light guide plate on the wiring substrate to cause the wiring substrate and the second major surface of the light guide plate to face each other to cause the light source to be positioned in the first hole;
• and
• after disposing the light guide plate on the wiring substrate, disposing a first light-transmitting member in the first hole.