An LED module comprising: a light-diffusing substrate having light-transmissive properties; at least one LED chip bonded to a first surface of the light-diffusing substrate with a transparent first bond in-between; a color converter facing the first surface to cover the at least one LED chip; and a mounting substrate, the color converter being made of transparent material containing phosphor which, when excited by light emitted from the at least one LED chip, emits light having a different color from the at least one LED chip, the mounting substrate including a diffuse reflection layer diffusely reflecting light emitted from the at least one LED chip and light emitted from the phosphor, and the diffuse reflection layer being placed facing a second surface of the light-diffusing substrate, the at least one LED chip including a face in a thickness direction, and a first electrode and a second electrode which are connected to the face; the mounting substrate including a patterned wiring conductor electrically connected to the first electrode and the second electrode of the at least one LED chip through respective wires, and a part placed facing a rear face of the patterned wiring conductor; the patterned wiring conductor being opaque; said part having electrically-insulating properties; characterized by said part being made of resin; the diffuse reflection layer being formed facing a front face of the patterned wiring conductor; the patterned wiring conductor covering most of a surface of the resin part close to the light-diffusing substrate; the diffuse reflection layer covering most of the patterned wiring conductor the diffuse reflection layer including through holes allowing passage of respective second ends of the wires having first ends respectively bonded to the first electrode and the second electrode. a light-diffusing substrate having light-transmissive properties; at least one LED chip bonded to a first surface of the light-diffusing substrate with a transparent first bond in-between; a color converter facing the first surface to cover the at least one LED chip; and a mounting substrate, the color converter being made of transparent material containing phosphor which, when excited by light emitted from the at least one LED chip, emits light having a different color from the at least one LED chip, the mounting substrate including a diffuse reflection layer diffusely reflecting light emitted from the at least one LED chip and light emitted from the phosphor, and the diffuse reflection layer being placed facing a second surface of the light-diffusing substrate, the at least one LED chip including a face in a thickness direction, and a first electrode and a second electrode which are connected to the face; the mounting substrate including a patterned wiring conductor electrically connected to the first electrode and the second electrode of the at least one LED chip through respective wires, and a part placed facing a rear face of the patterned wiring conductor; the patterned wiring conductor being opaque; said part having electrically-insulating properties; characterized by said part being made of resin; the diffuse reflection layer being formed facing a front face of the patterned wiring conductor; the patterned wiring conductor covering most of a surface of the resin part close to the light-diffusing substrate; the diffuse reflection layer covering most of the patterned wiring conductor the diffuse reflection layer including through holes allowing passage of respective second ends of the wires having first ends respectively bonded to the first electrode and the second electrode.