White light emitting diode package for incandescent color
AssigneeSeoul Semiconductor Co., Ltd.
InventorsJung Hwa Jung, In Kyu Park, Byoung Hoon Choi
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Abstract
The present invention relates to a white light emitting diode (LED) package that includes a blue LED chip to emit blue light; a yellow phosphor excited by the blue light and emit yellow light, the yellow light to produce a primary white light in combination with the blue light; a red LED chip to emit red light, the red light to adjust the primary white light into secondary white light of an incandescent color; and a package member comprising at least a partial transmissive part covering the blue LED chip, the red LED chip, and the yellow phosphor. The primary white light falls in a region of (0.413, 0.502), (0.335, 0.376), (0.37, 0.371), and (0.439, 0.48) based on a CIE color coordinate standard.
Claims6
A white light emitting diode (LED) package, comprising:
- a blue LED chip to emit blue light;
- a yellow phosphor to be excited by the blue light and emit yellow light, the yellow light to produce primary white light in combination with the blue light;
- a red LED chip to emit red light, the red light to adjust the primary white light into secondary white light comprising an incandescent color;
- and
- a package member comprising at least a partially transmissive part covering the blue LED chip, the red LED chip, and the yellow phosphor, wherein,
- the primary white light falls in a primary white light region of (0.413, 0.502), (0.335, 0.376), (0.37, 0.371), and (0.439, 0.48), based on a CIE color coordinate standard,
- the secondary white light falls in a secondary white light region on a CIE color coordinate standard, and the secondary white light region is disposed outside of and at the lower right side of the primary white light region, on a CIE color coordinate graph.
Dependencies are inferred from the claim text.