A surface-emitting unit includes a surface-emitting panel which emits light, a transmissive member which is arranged to face a light-emitting surface, propagates light emitted from the surface-emitting panel as being reflected therein, and allows light to exit from a light exit surface, and a scattering sheet which is provided to face a light exit surface of the transmissive member and scatters light. The transmissive member has a dimming surface provided between a light incident surface on which light emitted from the surface-emitting panel is incident and the light exit surface. The light-emitting surface has a light-emitting region which emits light and a non-light-emitting region which does not emit light. The dimming surface is configured such that a region facing the non-light-emitting region is different in transmittance of light from a region facing the light-emitting region, in accordance with a distribution of light emitted from each of the surface-emitting panels.