Method of manufacturing light emitting module and light emitting module

A method of manufacturing a light emitting module comprising:

• preparing a light guide plate that comprises a first main surface serving as a light-emitting surface and a second main surface opposite to the first main surface;
• providing a plurality of optically functional portions at the first surface of the light guide plate;
• forming a plurality of concave portions on a side of the second main surface so as to overlap with each of the optically functional portions in a planar perspective projection;
• disposing a wavelength conversion material in the concave portions to form a plurality of wavelength conversion portions;
• disposing a light-transmissive joining member on each of the wavelength conversion material of the plurality of wavelength conversion portions;
• providing each of a plurality of light emitting elements on each of the wavelength conversion material of the plurality of wavelength conversion portions, wherein the plurality of light emitting elements are joined to the wavelength conversion material by the light-transmissive joining member, and wherein the light-transmissive joining member is provided to cover side surfaces of the light emitting element and is formed in a shape that expands toward the light guide plate in a cross-sectional view;
• and
• forming wires electrically connecting the plurality of light emitting elements.