Optoelectronic component and method for producing same
US-12176444-B2 · Dec 24, 2024 · US
Light-emitting device and method for producing the same
US2016233387A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016233387-A1 |
| Application number | US-201415022968-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 6, 2014 |
| Priority date | Oct 15, 2013 |
| Publication date | Aug 11, 2016 |
| Grant date | — |
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- Title
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Abstract
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A light-emitting device includes a substrate, a light-emitting element disposed on the substrate, and a sealing member for sealing the light-emitting element. The sealing member contains at least a particulate red phosphor. The red phosphor contains at least a Mn 4+ -activated fluoride complex phosphor. The sealing member has an upper surface with irregularities on at least part of the upper surface.
First claim
Opening claim text (preview).
1 . A light-emitting device comprising: a substrate; a light-emitting element disposed on the substrate; and a sealing member for sealing the light-emitting element; wherein the sealing member contains at least a particulate red phosphor, the red phosphor contains at least a Mn 4+ -activated fluoride complex phosphor, the Mn 4+ -activated fluoride complex phosphor is formed into particles, and the sealing member has an upper surface with convex portions that are formed by including the particles of the Mn 4+ -activated fluoride complex phosphor in the sealing member on at least part of the upper surface. 2 . The light-emitting device according to claim 1 , wherein a level of the upper surface of the sealing member with respect to the light-emitting element decreases from a circumferential edge of the sealing member in plan view toward a center of the sealing member in plan view, and the red phosphor is distributed uniformly in the sealing member. 3 . The light-emitting device according to claim 1 , wherein the sealing member further contains a green phosphor. 4 . The light-emitting device according to claim 3 , wherein the red phosphor is contained in an amount of two times or more and four times or less an amount of the green phosphor on a mass basis. 5 . The light-emitting device according to any of claim 1 , wherein the sealing member further contains a sealing resin, and the sealing resin has a viscosity of 2,000 (mPa·s) or more and 7,000 (mPa·s) or less. 6 - 10 . (canceled) 11 . The light-emitting device according to claim 1 , wherein the volume-based median diameter of the Mn 4+ -activated fluoride complex phosphor is 10 μm or more and 90 μm or less.
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Classifications
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- What does patent US2016233387A1 cover?
- A light-emitting device includes a substrate, a light-emitting element disposed on the substrate, and a sealing member for sealing the light-emitting element. The sealing member contains at least a particulate red phosphor. The red phosphor contains at least a Mn 4+ -activated fluoride complex phosphor. The sealing member has an upper surface with irregularities on at least part of the upper su…
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification H10H20/8506. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 11 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).