Light emitting device and method for manufacturing the same
First Claim
1. A light emitting device comprising:
- a substrate;
a light emitting unit including a plurality of light emitting elements mounted on the substrate and electrically connected to external electrodes;
a first sealing member layer containing fluorescent material and formed to cover the light emitting elements; and
a second sealing member layer containing fluorescent material and formed on the first sealing member layer,wherein the second sealing member layer partially covers the first sealing member layer but does not cover each of the plurality of light emitting elements so as to influence a chromaticity characteristic of the light emitting device.
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Accused Products
Abstract
By using a light emitting device including a substrate and a light emitting unit, the light emitting unit including: a plurality of light emitting elements that are mounted on substrate and electrically connected to external electrodes; a first sealing member layer containing a first fluorescent material, formed to cover light emitting elements; and a second sealing member layer containing a second fluorescent material, formed on first sealing member layer, as well as a method for manufacturing thereof, it becomes possible to provide a light emitting device capable of suppressing color shifts and the like by the fluorescent materials, and of being easily manufactured, as well as a method for manufacturing the same.
70 Citations
21 Claims
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1. A light emitting device comprising:
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a substrate; a light emitting unit including a plurality of light emitting elements mounted on the substrate and electrically connected to external electrodes; a first sealing member layer containing fluorescent material and formed to cover the light emitting elements; and a second sealing member layer containing fluorescent material and formed on the first sealing member layer, wherein the second sealing member layer partially covers the first sealing member layer but does not cover each of the plurality of light emitting elements so as to influence a chromaticity characteristic of the light emitting device. - View Dependent Claims (18)
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2. A light emitting device comprising:
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a metal substrate; an insulating base member having a through hole covering the metal substrate; a plurality of light emitting elements mounted inside the through hole of the insulating base member on the metal substrate; a wiring pattern formed on the insulating base member; a first sealing member layer covering the light emitting elements and the through hole; and externally connecting lands formed on the insulating base member, wherein the light emitting elements are electrically connected to the externally connecting lands through the wiring pattern. - View Dependent Claims (3, 4, 5, 6, 7, 12, 13, 14, 15, 16, 17, 19, 20)
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8. A light emitting device comprising:
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a metal substrate; an insulating base member formed on the metal substrate; metal plates placed on the insulating base member so as to form a spaced portion therebetween; light emitting elements mounted on the metal plates; a first sealing member layer covering the light emitting elements; and externally connecting lands formed on the insulating base member, wherein the light emitting elements are electrically connected to the metal plates, and wherein the light emitting elements are electrically connected to the externally connecting lands through the metal plates. - View Dependent Claims (9, 10, 11)
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21. A method for manufacturing a light emitting device, comprising:
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installing a plurality of light emitting elements on a substrate; electrically connecting the light emitting elements to external electrodes; forming a first sealing member layer containing fluorescent material in such a manner as to cover the light emitting elements; measuring a first chromaticity characteristic of the light emitting device after the formation of the first sealing member layer; and forming a second sealing member layer containing fluorescent material partially covering the first sealing member layer but not covering each of the plurality of light emitting elements so that the light emitting device has a second chromaticity characteristic.
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Specification