发明公开
- 专利标题: DOWNCONVERSION FILM ELEMENT
- 专利标题(中): DOWNCONVERSION电影元素
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申请号: EP15874187.6申请日: 2015-12-18
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公开(公告)号: EP3237942A1公开(公告)日: 2017-11-01
- 发明人: PELLERITE, Mark J. , BENOIT, Gilles J.
- 申请人: 3M Innovative Properties Company
- 申请人地址: 3M Center Post Office Box 33427 St. Paul, MN 55133-3427 US
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: 3M Center Post Office Box 33427 St. Paul, MN 55133-3427 US
- 代理机构: Isarpatent
- 优先权: US201462095425P 20141222
- 国际公布: WO2016106119 20160630
- 主分类号: G02B5/20
- IPC分类号: G02B5/20 ; G02F1/13357
摘要:
A downconversion film element comprises quantum dots and phosphor, wherein either (a) the quantum dots emit a peak red wavelength in a range from 615 to 660 nm and a FWHM of less than 50 nm, and the phosphor emits a peak green wavelength in a range from 515 to 555 nm and a FWHM of less than 80 nm and has an internal fluorescence quantum yield of 75% or greater or (b) the quantum dots emit a peak green wavelength in a range from 515 to 555 nm and a FWHM of less than 40 nm, and the phosphor emits a peak red wavelength in a range from 615 to 645 nm and a FWHM of less than 80 nm and has an internal fluorescence quantum yield of 75% or greater.
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