LIGHT EMITTING DEVICE AND DISPLAY
First Claim
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1. A light emitting diode comprising:
- an LED chip having an electrode;
a transparent material covering said LED chip, anda phosphor contained in said transparent material and absorbing a part of light emitted by said LED chip and emitting light of wavelength different from that of the absorbed light;
wherein the main emission peak of said LED chip is within the range from 400 nm to 530 nm,a concentration of said phosphor in the vicinity of said LED chip is larger than a concentration of said phosphor in the vicinity of the surface of said transparent material, andsaid phosphor diffuses the light from said LED chip and suppresses a formation of an emission pattern by a partial blocking of the light by said electrode.
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Abstract
A light emitting device containing a semiconductor light emitting component and a phosphor, the phosphor is capable of absorbing a part of light emitted by the light emitting component and emitting light of a wavelength different from that of the absorbed light, is provided. A straight line connecting a point of chromaticity corresponding to a spectrum generated by the light emitting component and a point of chromaticity corresponding to a spectrum generated by the phosphor is substantially along a black body radiation locus in a chromaticity diagram.
84 Citations
14 Claims
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1. A light emitting diode comprising:
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an LED chip having an electrode; a transparent material covering said LED chip, and a phosphor contained in said transparent material and absorbing a part of light emitted by said LED chip and emitting light of wavelength different from that of the absorbed light; wherein the main emission peak of said LED chip is within the range from 400 nm to 530 nm, a concentration of said phosphor in the vicinity of said LED chip is larger than a concentration of said phosphor in the vicinity of the surface of said transparent material, and said phosphor diffuses the light from said LED chip and suppresses a formation of an emission pattern by a partial blocking of the light by said electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification