WHITE LIGHT EMITTING DEVICE, AND DISPLAY APPARATUS AND ILLUMINATION APPARATUS USING THE SAME
First Claim
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1. A white light emitting device comprising:
- a blue light emitting diode (LED) emitting blue light;
at least one yellow phosphor excited by the blue light to emit yellow light, and selected from the group consisting of Y3Al5O12 and Lu3Al5O12; and
a red phosphor excited by the blue light to emit red light,wherein white light obtained from a mixture of blue light and excited light corresponds to a region defined by coordinate points of (0.28, 0.28), (0.24 0.20), (0.26, 0.19), and (0.30, 0.27) in a CIE 1931 color coordinate system.
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Abstract
A white light emitting device includes a blue light emitting diode (LED) emitting blue light, a yellow phosphor excited by the blue light to emit yellow light, and selected from the group consisting of Y3Al5O12 and Lu3Al5O12, and a red phosphor and a green phosphor excited by the blue light to emit red light and green light, wherein white light obtained from a mixture of the blue light and excited light corresponds to a region defined by coordinate points of (0.28, 0.28), (0.24, 0.20), (0.26, 0.19), and (0.30, 0.27) in a CIE 1931 color coordinate system.
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33 Claims
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1. A white light emitting device comprising:
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a blue light emitting diode (LED) emitting blue light;
at least one yellow phosphor excited by the blue light to emit yellow light, and selected from the group consisting of Y3Al5O12 and Lu3Al5O12; anda red phosphor excited by the blue light to emit red light, wherein white light obtained from a mixture of blue light and excited light corresponds to a region defined by coordinate points of (0.28, 0.28), (0.24 0.20), (0.26, 0.19), and (0.30, 0.27) in a CIE 1931 color coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 20, 22, 24, 26, 28, 30, 32)
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12. A white light emitting device comprising:
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a blue light emitting diode (LED) emitting blue light; and a yellow phosphor excited by the blue light to emit yellow light consisting of La3Si6N11, wherein white light obtained from a mixture of the blue light and excited light corresponds to a region defined by coordinate points of (0.28, 0.28), (0.24 0.20), (0.26, 0.19), and (0.30, 0.27) in a CIE 1931 color coordinate system. - View Dependent Claims (13, 14, 15, 16, 17, 19, 21, 23, 25, 27, 29, 31, 33)
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Specification