LIGHT-EMITTING DIODE WITH LIGHT-CONVERSION LAYER
First Claim
1. A method for making a lighting apparatus, the method comprising:
- providing a substrate;
disposing a light-emitting diode overlying the substrate, the light-emitting diode having a top surface oriented away from the substrate and a plurality of side surfaces;
providing a light-conversion material that includes a substantially transparent base material and a wave-shifting material dispersed in the base material, a concentration of the wave-shifting material being at least 30%; and
depositing a predetermined amount of the light-conversion material on the top surface of the light-emitting diode while maintaining the side surfaces substantially free of the light-conversion material.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for making a lighting apparatus includes providing a substrate and disposing a light-emitting diode overlying the substrate. The light-emitting diode has a top surface oriented away from the substrate and a plurality of side surfaces. A light-conversion material is provided that includes a substantially transparent base material and a wave-shifting material dispersed in the base material. The concentration of the wave-shifting material can be at least 30%. In an embodiment, the concentration of the wave-shifting material can be approximately 50% or 70%. A predetermined amount of the light-conversion material is deposited on the top surface of the light-emitting diode while the side surfaces are maintained substantially free of the light-conversion material.
-
Citations
33 Claims
-
1. A method for making a lighting apparatus, the method comprising:
-
providing a substrate; disposing a light-emitting diode overlying the substrate, the light-emitting diode having a top surface oriented away from the substrate and a plurality of side surfaces; providing a light-conversion material that includes a substantially transparent base material and a wave-shifting material dispersed in the base material, a concentration of the wave-shifting material being at least 30%; and depositing a predetermined amount of the light-conversion material on the top surface of the light-emitting diode while maintaining the side surfaces substantially free of the light-conversion material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method for making a lighting apparatus, the method comprising:
-
providing a substrate; disposing at least a first light-emitting diode and a second light-emitting diode overlying the substrate, each of the first and the second light-emitting diodes having a top surface oriented away from the substrate and a plurality of side surfaces; providing a first phosphor-containing material having a phosphor concentration of at least 30% providing a second phosphor-containing material having a phosphor concentration of at least 30%; depositing a first predetermined amount of the first phosphor-containing material on the top surface of the first light-emitting diode while maintaining the side surfaces substantially free of the phosphor-containing material; and depositing a second predetermined amount of the second phosphor-containing material on the top surface of the second light-emitting diode while maintaining the side surfaces substantially free of the phosphor-containing material. - View Dependent Claims (24, 25, 26)
-
-
27. A lighting apparatus, comprising:
-
a light-emitting diode having a top surface capable of emitting light and a plurality of side surfaces; and a light-conversion layer overlying the top surface of the light-emitting diode, the side surfaces of the light-emitting diode being substantially free of the light-conversion layer, the light-conversion layer including a substantially transparent base material and a wave-shifting material, a concentration of the wave-shifting material being at least 30%. - View Dependent Claims (28, 29, 30, 31, 32, 33)
-
Specification