Light emitting device and LCD backlight using the same
US-9287241-B2 · Mar 15, 2016 · US
Phosphor and semiconductor light emitting device using the same
US11274249B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11274249-B2 |
| Application number | US-202017060170-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 1, 2020 |
| Priority date | Oct 9, 2019 |
| Publication date | Mar 15, 2022 |
| Grant date | Mar 15, 2022 |
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- Title
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Abstract
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A phosphor is represented by a chemical formula of Lu(3-x-z)MgxZnyAl(5-y)O12:Cez, in which in a case where z is in a range of 0.01≤z≤0.03, x and y respectively satisfy 0<x≤1.4 and 0<y≤1.4, in a case where z is in a range of 0.03<z≤0.06, x and y respectively satisfy y<0.2 and 0.1≤x≤1.4, x<0.2 and 0.1≤y≤1.4, or x=0.2 and y=0.2, in a case where z is in a range of 0.06<z≤0.09, x and y respectively satisfy y<0.2 and 0.1≤x<1.4, or x<0.2 and 0.1≤y<1.4, and in a case where z is in a range of 0.09<z≤0.12, x and y respectively satisfy y<0.2 and 0.1≤x<0.9, or x<0.2 and 0.1≤y<0.9.
First claim
Opening claim text (preview).
What is claimed is: 1. A phosphor of a chemical formula Lu (3-x-z) Mg x Zn y Al (5-y) O 12 :Ce z , wherein in a case where z is in a range of 0.01≤z≤0.03, x and y respectively satisfy 0<x≤1.4 and 0<y≤1.4, in a case where z is in a range of 0.03<z≤0.06, x and y respectively satisfy y<0.2 and 0.1≤x≤1.4, x<0.2 and 0.1≤y≤1.4, or x=0.2 and y=0.2, in a case where z is in a range of 0.06<z≤0.09, x and y respectively satisfy y<0.2 and 0.1≤x<1.4, or x<0.2 and 0.1≤y<1.4, and in a case where z is in a range of 0.09<z≤0.12, x and y respectively satisfy y<0.2 and 0.1≤x<0.9, or x<0.2 and 0.1≤y<0.9. 2. The phosphor of claim 1 , wherein in a case where z is in a range of 0.01≤z≤0.03, x and y respectively satisfy y<0.2 and 0.1≤x≤1.4, or x<0.2 and 0.1≤y≤1.4, and in a case where z is in a range of 0.03<z≤0.06, x and y respectively satisfy y<0.2 and 0.1<x<0.9, or x<0.2 and 0.1<y<0.9. 3. A semiconductor light emitting device comprising: the phosphor of claim 1 ; and a semiconductor light emitting element that emits blue light having a light emission peak wavelength of 450 nm.
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Classifications
- C09K11/7792Primary
Aluminates · CPC title
Aluminates · CPC title
having two or more wavelength conversion materials · CPC title
containing nitrogen, e.g. GaN · CPC title
of wavelength conversion means · CPC title
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- What does patent US11274249B2 cover?
- A phosphor is represented by a chemical formula of Lu(3-x-z)MgxZnyAl(5-y)O12:Cez, in which in a case where z is in a range of 0.01≤z≤0.03, x and y respectively satisfy 0<x≤1.4 and 0<y≤1.4, in a case where z is in a range of 0.03<z≤0.06, x and y respectively satisfy y<0.2 and 0.1≤x≤1.4, x<0.2 and 0.1≤y≤1.4, or x=0.2 and y=0.2, in a case where z is in a range of 0.06<z≤0.09, x and y respectively …
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K11/7792. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 15 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).