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公开(公告)号：US11585965B2
公开(公告)日：2023-02-21
申请号：US16990679
申请日：2020-08-11
申请人： LUMILEDS LLC
发明人： Marcel Rene Bohmer , Jacobus Johannes Franciscus Gerardus Heuts , Daniel Estrada , Kentaro Shimizu
摘要： Described herein is a system and method for tuning light scatter in an optically functional porous layer of an LED. The layer comprises a non-light absorbing material structure having a plurality of sub-micron pores and a polymer matrix. The non-light absorbing material forms either a plurality of micron-sized porous particles dispersed throughout the layer or a mesh slab, wherein a plurality of sub-micron pores is located within each micron-sized porous particle or forms an interconnected network of sub-micron pores within the mesh slab, respectively. A polymer matrix, such as a high refractive index silicone fills the plurality of sub-micron pores creating an interface between the materials. Refractive index differences between the materials allow for light scatter to occur at the interface of the materials. Light scatter can also be decreased as a function of temperature, creating a system for tuning light scatter in both an off state and on state of an LED.
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公开(公告)号：US10761246B2
公开(公告)日：2020-09-01
申请号：US15852822
申请日：2017-12-22
申请人： Lumileds LLC
发明人： Marcel Rene Bohmer , Jacobus Johannes Franciscus Gerardus Heuts , Daniel Estrada , Kentaro Shimizu
摘要： Described herein is a system and method for tuning light scatter in an optically functional porous layer of an LED. The layer comprises a non-light absorbing material structure having a plurality of sub-micron pores and a polymer matrix. The non-light absorbing material forms either a plurality of micron-sized porous particles dispersed throughout the layer or a mesh slab, wherein a plurality of sub-micron pores is located within each micron-sized porous particle or forms an interconnected network of sub-micron pores within the mesh slab, respectively. A polymer matrix, such as a high refractive index silicone fills the plurality of sub-micron pores creating an interface between the materials. Refractive index differences between the materials allow for light scatter to occur at the interface of the materials. Light scatter can also be decreased as a function of temperature, creating a system for tuning light scatter in both an off state and on state of an LED.
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公开(公告)号：US11557703B2
公开(公告)日：2023-01-17
申请号：US16226487
申请日：2018-12-19
申请人： Lumileds LLC
发明人： Kentaro Shimizu , Marcel Rene Bohmer , Daniel Estrada , Jacobus Johannes Franciscus Gerardus Heuts
IPC分类号： H01L33/58 , F21S41/141 , F21S41/40 , F21V14/00 , G02F1/01 , G02F1/015 , G02F1/163 , H01L25/075 , H01L27/15 , H01L33/50 , H01L51/52 , F21Y115/10 , F21S41/64 , F21V23/00 , F21V23/02
摘要： A first pixel with a first pixel sidewall is disclosed. A second pixel with a second pixel sidewall facing the first pixel sidewall is also disclosed. A first dynamic optical isolation material between the first pixel sidewall and the second pixel sidewall and configured to change an optical state based on a state trigger such that a light behavior at the first pixel sidewall for a light emitted by one of the first pixel and the second pixel is determined by the optical state, is also disclosed.
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公开(公告)号：US11489095B2
公开(公告)日：2022-11-01
申请号：US16912496
申请日：2020-06-25
申请人： LUMILEDS LLC
发明人： Kentaro Shimizu , Marcel Rene Bohmer , Daniel Estrada , Jacobus Johannes Franciscus Gerardus Heuts
IPC分类号： H01L33/58 , H01L27/15 , G02F1/01 , G02F1/163 , H01L25/075 , H01L51/52 , F21S41/141 , F21S41/40 , F21V14/00 , G02F1/015 , H01L33/50 , F21Y115/10 , F21S41/64 , F21V23/00 , F21V23/02
摘要： A first pixel with a first pixel sidewall is disclosed. A second pixel with a second pixel sidewall facing the first pixel sidewall is also disclosed. A first dynamic optical isolation material between the first pixel sidewall and the second pixel sidewall and configured to change an optical state based on a state trigger such that a light behavior at the first pixel sidewall for a light emitted by one of the first pixel and the second pixel is determined by the optical state, is also disclosed.
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公开(公告)号：US11081628B2
公开(公告)日：2021-08-03
申请号：US16203123
申请日：2018-11-28
申请人： Lumileds LLC
摘要： Systems for LED illumination products. Solutions to the problems attendant to delivering a white-appearing LED product without diminishing efficiency of white light generation are presented. Devices are designed and manufactured that include a specially-formulated off-state white-appearing layer to the LED apparatus. The composition of the specially-formulated off-state white-appearing layer is tuned for high-efficiency during the on-state.
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6.发明申请公开(公告)号：US20190267524A1
公开(公告)日：2019-08-29
申请号：US16203123
申请日：2018-11-28
申请人： Lumileds LLC
摘要： Systems for LED illumination products. Solutions to the problems attendant to delivering a white-appearing LED product without diminishing efficiency of white light generation are presented. Devices are designed and manufactured that include a specially-formulated off-state white-appearing layer to the LED apparatus. The composition of the specially-formulated off-state white-appearing layer is tuned for high-efficiency during the on-state.
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公开(公告)号：US11888100B2
公开(公告)日：2024-01-30
申请号：US17967174
申请日：2022-10-17
申请人： LUMILEDS LLC
发明人： Kentaro Shimizu , Marcel Rene Bohmer , Daniel Estrada , Jacobus Johannes Franciscus Gerardus Heuts
IPC分类号： H01L33/58 , G02F1/01 , H01L33/50 , H01L25/075 , G02F1/163 , G02F1/015 , H01L27/15 , F21S41/40 , F21S41/141 , F21V14/00 , H01L51/52 , H10K50/86 , F21V23/00 , F21S41/64 , F21Y115/10 , F21V23/02
CPC分类号： H01L33/58 , F21S41/141 , F21S41/40 , F21V14/003 , G02F1/015 , G02F1/0126 , G02F1/0147 , G02F1/163 , H01L25/0753 , H01L27/156 , H01L33/50 , H10K50/865 , F21S41/64 , F21S41/645 , F21V23/005 , F21V23/02 , F21Y2115/10 , G02F2203/01 , G02F2203/02 , G02F2203/03 , H01L2933/0091
摘要： A first LED with a first LED sidewall is disclosed. A second LED with a second LED sidewall facing the first LED sidewall is also disclosed. A first dynamic optical isolation material between the first LED sidewall and the second LED sidewall and configured to change an optical state based on a state trigger such that a light behavior at the first LED sidewall for a light emitted by one of the first LED and the second LED is determined by the optical state, is also disclosed.
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公开(公告)号：US10186645B2
公开(公告)日：2019-01-22
申请号：US15688611
申请日：2017-08-28
申请人： Lumileds LLC
摘要： Systems for LED illumination products. Solutions to the problems attendant to delivering a white-appearing LED product without diminishing efficiency of white light generation are presented. Devices are designed and manufactured that include a specially-formulated off-state white-appearing layer to the LED apparatus. The composition of the specially-formulated off-state white-appearing layer is tuned for high-efficiency during the on-state.
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9.发明申请公开(公告)号：US20180062052A1
公开(公告)日：2018-03-01
申请号：US15688611
申请日：2017-08-28
申请人： Lumileds LLC
CPC分类号： H01L33/60 , H01L33/44 , H01L33/50 , H01L33/501 , H01L33/502 , H01L33/504 , H01L33/56 , H01L2933/0091
摘要： Systems for LED illumination products. Solutions to the problems attendant to delivering a white-appearing LED product without diminishing efficiency of white light generation are presented. Devices are designed and manufactured that include a specially-formulated off-state white-appearing layer to the LED apparatus. The composition of the specially-formulated off-state white-appearing layer is tuned for high-efficiency during the on-state.
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