Light-emitting assembly and method for manufacturing the same
View Patent ↗A light-emitting assembly and a method for manufacturing the same are provided. The light-emitting assembly includes a circuit board with a light-emitting element and a plurality of optical microstructures disposed thereon. The optical microstructures adjacent to the light-emitting element absorb or guide a portion of light emitted from the light-emitting element.
1. A method for manufacturing a light-emitting assembly, comprising:
providing a circuit board;
forming a plurality of optical microstructures on the circuit board; and
providing a light-emitting element on the circuit board, wherein the optical microstructures are adjacent to the light-emitting element for absorbing or guiding a portion of light emitted from the light-emitting element, and the optical microstructures are made from an ink comprising light-absorbing or light reflecting material.
2. The method for manufacturing a light-emitting assembly as claimed in claim 1 , wherein the steps of forming the optical microstructures comprise:
providing a screen component;
providing the ink, and disposing the ink on the circuit board through the screen component to form a plurality of ink microstructures; and
curing the ink microstructures to form the plurality of solid optical microstructures on the circuit board.
3. The method for manufacturing a light-emitting assembly as claimed in claim 2 , wherein the optical microstructures are formed in a region where the light emitted from the light-emitting element is predicted to have a higher density and form a bright band.
4. The method for manufacturing a light-emitting assembly as claimed in claim 1 , wherein the ink comprises silica gel, acrylic, epoxy resin, or a combination thereof.
5. The method for manufacturing a light-emitting assembly as claimed in claim 1 , wherein the light-absorbing material comprises organic or mineral dye.
6. The method for manufacturing a light-emitting assembly as claimed in claim 5 , wherein the light-absorbing material comprises carbon black and/or black mineral dye.
7. The method for manufacturing a light-emitting assembly as claimed in claim 1 , wherein the light-reflecting material comprises high reflective oxide and/or high reflective metal.
8. The method for manufacturing a light-emitting assembly as claimed in claim 7 , wherein the light-reflecting materials comprise titanium dioxide, aluminum, and/or silver.
9. The method for manufacturing a light-emitting assembly as claimed in claim 1 , wherein the light-emitting element comprises an LED.
10. The method for manufacturing a light-emitting assembly as claimed in claim 9 , further comprising:
providing a lens covering the light-emitting element.