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公开(公告)号:US20210305470A1
公开(公告)日:2021-09-30
申请号:US17344495
申请日:2021-06-10
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Benjamin Daniel Mangum , David O'Brien , Britta Göötz
Abstract: A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein the at least three sub-pixel include a first sub-pixel including a first conversion element, wherein the first conversion element includes a green phosphor, a second sub-pixel including a second conversion element, wherein the second conversion element includes a red phosphor and a third sub-pixel free of a conversion element, wherein the third sub-pixel is configured to emit blue primary radiation, wherein each sub-pixels has an edge length of at most 100 μm, and wherein the pixel is a linear chain of sub-pixels and a plurality of pixels is arranged in a two dimensional ordered pattern so that a first sub-pixel is never adjacent to a third sub-pixel in a vertical direction and in a horizontal direction of the ordered pattern.
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公开(公告)号:US11053435B2
公开(公告)日:2021-07-06
申请号:US16230995
申请日:2018-12-21
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Georgeta Masson , Kari N. Haley , Brian Theobald , Benjamin Daniel Mangum , Juanita N. Kurtin
Abstract: Quantum dot delivery methods are described. In a first example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles. The method also involves forming a dispersion of the plurality of nano-particles in a medium for delivery or storage, wherein the medium is free of organic solvent. In a second example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles in an organic solvent. The method also involves drying the plurality of nano-particles for delivery or storage, the drying removing entirely all of the organic solvent.
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公开(公告)号:US20210296440A1
公开(公告)日:2021-09-23
申请号:US16822213
申请日:2020-03-18
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Joseph A. Treadway , Benjamin Daniel Mangum , David O'Brien
IPC: H01L29/06 , H01L23/552 , H05K9/00
Abstract: A semiconductor nanocrystal structure may include a core, an inner absorption shell surrounding the core, at least one emission shell surrounding the inner absorption shell, and an outer absorption shell surrounding the emission shell(s). The core may include a different material than the optional inner absorption shell and/or the outer absorption shell. The core may be less absorbent to electromagnetic radiation as compared to the optional inner absorption shell and/or the outer absorption shell. An optoelectronic device may include the semiconductor nanocrystal structure.
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公开(公告)号:US11088302B2
公开(公告)日:2021-08-10
申请号:US16504845
申请日:2019-07-08
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Benjamin Daniel Mangum , David O'Brien , Britta Göötz
IPC: H01L33/50 , C09K11/08 , G02F1/13357 , G09F9/33 , H01L27/15 , H01L33/52 , H05B33/14 , F21Y115/10 , G02F1/1335 , B82Y20/00 , B82Y30/00
Abstract: A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein a first sub-pixel includes a first conversion element having a green phosphor, wherein a second sub-pixel includes a second conversion element having a red phosphor and wherein a third sub-pixel is free of a conversion element, the third sub-pixel configured to emit blue primary radiation, wherein each sub-pixel has an edge length of at most 100 μm, and wherein the light-emitting device is configured to enhance a gamut coverage of an emitted radiation.
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公开(公告)号:US11626545B2
公开(公告)日:2023-04-11
申请号:US17344495
申请日:2021-06-10
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Benjamin Daniel Mangum , David O'Brien , Britta Göötz
IPC: H01L33/50 , C09K11/08 , G02F1/13357 , G09F9/33 , H01L27/15 , H01L33/52 , H05B33/14 , F21Y115/10 , G02F1/1335 , B82Y20/00 , B82Y30/00
Abstract: A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein the at least three sub-pixel include a first sub-pixel including a first conversion element, wherein the first conversion element includes a green phosphor, a second sub-pixel including a second conversion element, wherein the second conversion element includes a red phosphor and a third sub-pixel free of a conversion element, wherein the third sub-pixel is configured to emit blue primary radiation, wherein each sub-pixels has an edge length of at most 100 μm, and wherein the pixel is a linear chain of sub-pixels and a plurality of pixels is arranged in a two dimensional ordered pattern so that a first sub-pixel is never adjacent to a third sub-pixel in a vertical direction and in a horizontal direction of the ordered pattern.
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公开(公告)号:US11152463B2
公开(公告)日:2021-10-19
申请号:US16822213
申请日:2020-03-18
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Joseph A. Treadway , Benjamin Daniel Mangum , David O'Brien
IPC: H01L29/06 , H05K9/00 , H01L23/552
Abstract: A semiconductor nanocrystal structure may include a core, an inner absorption shell surrounding the core, at least one emission shell surrounding the inner absorption shell, and an outer absorption shell surrounding the emission shell(s). The core may include a different material than the optional inner absorption shell and/or the outer absorption shell. The core may be less absorbent to electromagnetic radiation as compared to the optional inner absorption shell and/or the outer absorption shell. An optoelectronic device may include the semiconductor nanocrystal structure.
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公开(公告)号:USRE48409E1
公开(公告)日:2021-01-26
申请号:US16172700
申请日:2018-10-26
Applicant: Osram Opto Semiconductors GmbH
Inventor: Kari N. Haley , Benjamin Daniel Mangum , Weiwen Zhao , Nathan Evan Stott , Juanita N. Kurtin
Abstract: Quantum dot polymer composites for on-chip light emitting diode applications are described. In an example, a composite for on-chip light emitting diode application includes a polymer matrix, a plurality of quantum dots dispersed in the polymer matrix, and a base dispersed in the polymer matrix.
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公开(公告)号:US20210013381A1
公开(公告)日:2021-01-14
申请号:US16504845
申请日:2019-07-08
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Benjamin Daniel Mangum , David O'Brien , Britta Göötz
Abstract: A light emitting device is disclosed. In an embodiment a light-emitting device includes a pixel comprising at least three sub-pixels, wherein a first sub-pixel includes a first conversion element having a green phosphor, wherein a second sub-pixel includes a second conversion element having a red phosphor and wherein a third sub-pixel is free of a conversion element, the third sub-pixel configured to emit blue primary radiation, wherein each sub-pixel has an edge length of at most 100 μm, and wherein the light-emitting device is configured to enhance a gamut coverage of an emitted radiation.
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公开(公告)号:US20190144743A1
公开(公告)日:2019-05-16
申请号:US16230995
申请日:2018-12-21
Applicant: OSRAM Opto Semiconductors GmbH
Inventor: Georgeta Masson , Kari N. Haley , Brian Theobald , Benjamin Daniel Mangum , Juanita N. Kurtin
Abstract: Quantum dot delivery methods are described. In a first example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles. The method also involves forming a dispersion of the plurality of nano-particles in a medium for delivery or storage, wherein the medium is free of organic solvent. In a second example, a method of delivering or storing a plurality of nano-particles involves providing a plurality of nano-particles in an organic solvent. The method also involves drying the plurality of nano-particles for delivery or storage, the drying removing entirely all of the organic solvent.
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