Package and display module
A package includes a substrate, a first light-emitting unit, a second light-emitting unit, a light-transmitting layer, and a light-absorbing layer. The substrate has a first surface and an upper conductive layer on the first surface. The first light-emitting unit and the second light-emitting unit are disposed on the upper conductive layer. The first light-emitting unit has a first light-emitting surface and a first side wall. The second light-emitting unit has a second light-emitting surface and a second side wall. The light-transmitting layer is disposed on the first surface and covers the upper conductive layer, the first light-emitting unit, and the second light-emitting unit. The light-absorbing layer is disposed between the substrate and the light-transmitting layer, covers the upper conductive layer, the first side wall, and the second side wall, and exposes the first light-emitting surface and the second light-emitting surface.
1. A package comprising:
a substrate comprising a first surface and an upper conductive layer on the first surface;
a first light-emitting unit disposed on the upper conductive layer and comprising a first semiconductor layer, a first substrate, a first light-emitting surface and a first side wall;
a second light-emitting unit disposed on the upper conductive layer and comprising a second light-emitting surface and a second side wall;
a light-transmitting layer disposed on the first surface and covering the upper conductive layer, the first light-emitting unit, and the second light-emitting unit; and
a light-absorbing layer disposed between the substrate and the light-transmitting layer in a continuous configuration of separating the first light-emitting unit and the second light-emitting unit from each other,
wherein the light-absorbing layer is directly connected to the upper conductive layer, the first side wall and the second side wall, and arranged to expose the first light-emitting surface and the second light-emitting surface, and
wherein the light-absorbing layer has an uppermost surface which is lower than the first light-emitting surface and the second light-emitting surface, and higher than an interface between the first semiconductor layer and the first substrate.
2. The package according to claim 1 , wherein the light-absorbing layer has a transmittance lower than that of the light-transmitting layer, , and higher than an interface between the first semiconductor layer and the first substrate.
3. The package according to claim 1 , wherein the light-absorbing layer includes a carbon.
4. The package according to claim 1 , wherein the light-absorbing layer and the light-transmitting layer include silicone, epoxy, or a combination thereof.
5. The package according to claim 1 , wherein the substrate comprises an insulating layer, a lower conductive layer disposed under the insulating layer, and a plurality of conductive vias, wherein the upper conductive layer is disposed on the insulating layer, and the plurality of conductive vias is arranged to connect the upper conductive layer and the lower conductive layer.
6. The package according to claim 1 , wherein the first light-emitting unit has a height h 1 , and the light-absorbing layer has a height h 2 , where 0.25×h 1 ≤h 2 ≤0.75×h 1 .
7. The package according to claim 1 , wherein the first light-emitting unit and the second light-emitting unit are flip-chips.
8. The package according to claim 1 , wherein the light-absorbing layer has a first thickness and a second thickness different from the first thickness.
9. The package according to claim 8 , wherein the light-absorbing layer has a portion contacting the first side wall of the first light-emitting unit, and another portion away from the first light-emitting unit, the portion has a first thickness, the another portion has a second thickness, and the first thickness is larger than the second thickness.
10. The package according to claim 1 , wherein the light-absorbing layer has a hardness less than that of the light-transmitting layer.
11. The package according to claim 1 , further comprising a third light-emitting unit disposed on the substrate, wherein the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are arranged in a straight line.