Optoelectronic component and method for producing same
US-12176444-B2 · Dec 24, 2024 · US
Light emitting device
US2016343918A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016343918-A1 |
| Application number | US-201615160444-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 20, 2016 |
| Priority date | May 21, 2015 |
| Publication date | Nov 24, 2016 |
| Grant date | — |
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Abstract
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A light emitting device includes a light emitting element; a sealing resin covering the light emitting element; and a light diffusing material contained in the sealing resin. When a difference in refractive index at 10° C. between the sealing resin and the light diffusing material is Δn1 and a difference in refractive index at 50° C. between the sealing resin and the light diffusing material is Δn2, a ratio of Δn2 to Δn1 is in a range of 95% to 105%.
First claim
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What is claimed is: 1 . A light emitting device comprising: a light emitting element; a sealing resin covering the light emitting element; and a light diffusing material contained in the sealing resin, wherein, when a difference in refractive index at 10° C. between the sealing resin and the light diffusing material is Δn1 and a difference in refractive index at 50° C. between the sealing resin and the light diffusing material is Δn2, a ratio of Δn2 to Δn1 is in a range of 95% to 105%. 2 . A light emitting device comprising: a light emitting element; a light-transmissive sealing resin covering the light emitting element; and a light diffusing material contained in the sealing resin, wherein a temperature dependence coefficient of a refractive index of the sealing resin at 10° C. to 50° C. is −5×10 −5 /° C. to −5×10 −4 /° C., and wherein a temperature dependence coefficient of a refractive index of the light diffusing material at 10° C. to 50° C. is −5×10 −5 /° C. to −5×10 −4 /° C. 3 . The light emitting device according to claim 1 , wherein the light diffusing material is an organic filler. 4 . The light emitting device according to claim 1 , wherein a refractive index of the light diffusing material is lower than a refractive index of the sealing resin. 5 . The light emitting device according to claim 1 , wherein the light diffusing material is methyl-based silicone resin. 6 . The light emitting device according to claim 1 , wherein the light diffusing material is an inorganic filler. 7 . The light emitting device according to claim 1 , wherein the sealing resin is phenyl-based silicone resin. 8 . The light emitting device according to claim 1 , wherein the sealing resin contains an inorganic nanofiller. 9 . The light emitting device according to claim 1 , further comprising a wavelength conversion substance converting wavelength of light emitted by the light emitting element into different wavelength. 10 . The light emitting device according to claim 1 , wherein the sealing resin has a convex shape in which a height in an optical axis direction in a cross-sectional view of the sealing resin is longer than a width of a bottom surface of the sealing resin. 11 . A light emitting device comprising: a light emitting element; phenyl-based silicone resin covering the light emitting element; and a light diffusing material formed of methyl-based silicone resin contained in the phenyl-based silicone resin.
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on active surfaces of flip-chip devices, e.g. underfills · CPC title
between a chip and a stacked insulating package substrate, interposer or RDL · CPC title
- H01L33/54Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2016343918A1 cover?
- A light emitting device includes a light emitting element; a sealing resin covering the light emitting element; and a light diffusing material contained in the sealing resin. When a difference in refractive index at 10° C. between the sealing resin and the light diffusing material is Δn1 and a difference in refractive index at 50° C. between the sealing resin and the light diffusing material is…
- Who is the assignee on this patent?
- Nichia Corp
- What technology area does this patent fall under?
- Primary CPC classification H01L33/54. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 24 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).