An optoelectric composite substrate includes a substrate, a light emitting element positioned on the substrate, and a lens mold positioned on the light emitting element and contacting at least a part of the substrate, wherein the lens mold includes a lens element, the lens element positions so as to overlap an emitting surface of the light emitting element, and a distance between the light emitting element and the lens element is greater than a range of a Fresnel region of the light emitting element.