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US 2006/0220046 A1Published application
Led
OwnerChuan-Pei Yu, Ming Chuan Chouinventors
Life of this patent
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Abstract
An LED light-mixing package providing white light has at least a red LED chip, at least a blue LED chip, at least a green LED chip, and pluralities of diffuser particles distributed in a sealing member that covers the LED chips, or integrate a lens. The diffuser particles scatter light emitted from the LED chips in the sealing member so that light is mixed and the LED light-mixing package produces white light.
Claims22
A light emitting diode (LED) light-mixing package, the LED light-mixing package comprising:
- a package seat;
- at least a red LED chip, at least a blue LED chip, and at least a green LED chip, positioned on the package seat, the red LED chip, the blue LED chip, and the green LED chip being capable of emitting red light, blue light, and green light respectively;
- a sealing member positioned on the package seat and covering the red LED chip, the blue LED chip, and the green LED chip;
- and
- a plurality of diffuser particles distributed in the sealing member, the diffuser particles being capable of scattering and mixing the red light, blue light, and green light in the sealing member so as to produce white light from the LED light-mixing package.
2 more elements
A back light unit, the back light unit comprising:
- a light guide plate having a light-incidence plane;
- and
- at least an LED light-mixing package being used as a light source of the back light unit, positioned near the light-incidence plane, the LED light-mixing package comprising:
- at least a red LED chip, at least a blue LED chip, and at least a green LED chip;
- a sealing member protectively covering the red LED chip, the blue LED chip, and the green LED chip;
- and
- a plurality of diffuser particles distributed in the sealing member, the diffuser particles being capable of scattering and mixing light emitted by the red LED chip, the blue LED chip, and the green LED chip in the sealing member so as to produce white light that passes into the light guide plate through the light-incidence plane.
4 more elements
Dependencies are inferred from the claim text.