White light LED assembly
AssigneeJ. S. Technology Co., Ltd.
InventorsWen-Ho Chen, Hui Yen Huang, King Chang Chang, Chia-Feng Lin
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Abstract
A white light LED assembly has at least two kinds of light-emitting units. The units can be a white light-emitting unit composed of red, green and blue LEDs, a white light-emitting unit composed of a blue and yellowish-green LEDs, a white light-emitting unit composed of a blue LED and yellow phosphor, or a white light-emitting units composed of UV LED and red, green and blue phosphors. The white light LED assembly according to the present invention has satisfactory efficiency and color rendering property as well as flexible phosphor usage.
Claims8
A white light LED assembly comprising at least two kinds of light-emitting units selected from a group consisting of
- (a) a first white light-emitting unit composed of red, green and blue LEDs;
- (b) a second white light-emitting unit composed of a blue and yellowish-green LEDs;
- (c) a third white light-emitting unit composed of a blue LED and yellow phosphor;
- and
- (d) a fourth white light-emitting units composed of UV LED and red, green and blue phosphors.
Dependencies are inferred from the claim text.