Light-emitting module and method of manufacturing light-emitting module
A light-emitting module includes: a plurality of light-emitting elements; a first substrate having an upper surface that includes an element mounting region on which the light-emitting elements are mounted, the first substrate including a plurality of first terminals; a second substrate having an upper surface that includes a substrate mounting region on which the first substrate is mounted, the second substrate including a plurality of second terminals; a plurality of wires each connected to corresponding ones of the first terminals and the second terminals; a light-shielding covering member disposed outward of the element mounting region so as to cover the plurality of wires; and a light-transmissive first projection disposed along the element mounting region between the element mounting region and the first terminals so as to be in contact with the covering member.
1 . A light-emitting module comprising:
a plurality of light-emitting elements;
a first substrate having an upper surface that includes an element mounting region on which the plurality of light-emitting elements are mounted, the first substrate comprising a plurality of first terminals arranged along the element mounting region at locations outward of the element mounting region at the upper surface of the first substrate;
a second substrate having an upper surface that includes a substrate mounting region on which the first substrate is mounted, the second substrate comprising a plurality of second terminals arranged along the substrate mounting region at locations outward of the substrate mounting region at the upper surface of the second substrate;
a plurality of wires, each connected to a corresponding one of the first terminals and a corresponding one of the second terminals, the plurality of wires arranged along corresponding outer edges of the first substrate;
a light-shielding covering member disposed outward of the element mounting region so as to cover the plurality of wires; and
a light-transmissive first projection disposed along the element mounting region between the element mounting region and the first terminals so as to physically contact the light-shielding covering member, wherein an entirety of the light-transmissive first projection is located inward of the plurality of first terminals; wherein:
a height of a top portion of the light-shielding covering member from the upper surface of the first substrate at a location outward of the light-transmissive first projection is greater than a height of the light-transmissive first projection from the upper surface of the first substrate.
2 . The light-emitting module according to claim 1 , further comprising a second projection disposed on the upper surface of the second substrate outward of the second terminals so as to physically contact the light-shielding covering member.
3 . The light-emitting module according to claim 2 ,
wherein the light-transmissive first projection surrounds the element mounting region in a plan view,
wherein the second projection surrounds the first substrate in a plan view, and
wherein the light-shielding covering member is disposed between the light-transmissive first projection and the second projection.
4 . The light-emitting module according to claim 1 ,
wherein the element mounting region has a rectangular shape having two sides opposite to each other in a plan view, and
wherein the wires are disposed along each of the two opposite sides of the element mounting region.
5 . The light-emitting module according to claim 1 , further comprising:
a wavelength conversion member covering the plurality of light-emitting elements,
wherein, in a plan view, the plurality of light-emitting elements are located inward of an outer periphery of the wavelength conversion member.
6 . The light-emitting module according to claim 1 , wherein an interface between the light-transmissive first projection and the light-shielding covering member has a curved shape convex toward the light-shielding covering member.
7 . The light-emitting module according to claim 1 , wherein the light-shielding covering member comprises a first light-shielding covering member covering the wires and a second light-shielding covering member covering the first covering member.
8 . The light-emitting module according to claim 7 , wherein the first light-shielding covering member contains a light-absorbing substance.
9 . The light-emitting module according to claim 7 , wherein the second light-shielding covering member contains a light-reflective substance.
10 . The light-emitting module according to claim 1 , wherein the light-shielding covering member comprises a resin containing a light-shielding filler.
11 . The light-emitting module according to claim 10 , wherein the light-shielding filler comprises a light-absorbing substance.
12 . The light-emitting module according to claim 11 , wherein the light-absorbing substance comprises a at least one of pigments, carbon black, or graphite.
13 . The light-emitting module according to claim 10 , wherein the light-shielding filler comprises a light-reflective substance.
14 . The light-emitting module according to claim 13 , wherein the light-reflective substance comprises at least one of titanium oxide, aluminum oxide, zinc oxide, barium carbonate, barium sulfate, boron nitride, aluminum nitride, or glass filler.
15 . The light-emitting module according to claim 1 , further comprising a light-reflective member disposed on the first substrate so as to cover lateral surfaces of the light-emitting elements, wherein a portion of the light-reflective member is located between the light-emitting elements and the light-transmissive first projection.
16 . The light-emitting module according to claim 1 , wherein the light-transmissive first projection does not physically contact the light-emitting elements.