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公开(公告)号：US20250044888A1
公开(公告)日：2025-02-06
申请号：US18292045
申请日：2022-07-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Edward S. Hagermoser , Bharat R. Acharya
Abstract: A display system includes a substrate, an optically reflecting first film defining a plurality of first openings across a length and a width of the first major surface, pluralities of visible light emitting first devices, infrared light emitting second devices, and infrared light detecting third devices disposed in the first openings of the first film and mounted on the substrate, and an optically reflecting second film disposed on the pluralities of first, second, and third devices and the optically reflecting first film opposite the substrate. For a visible wavelength range and an infrared wavelength range, the first film has an average reflectance of greater than about 60% for each of the visible and infrared wavelength ranges, and the second film has an average reflectance of greater than about 60% for the visible wavelength range and an average transmittance of greater than about 50% for the infrared wavelength range.
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公开(公告)号：US20230266515A1
公开(公告)日：2023-08-24
申请号：US18006459
申请日：2020-08-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Bharat R. Acharya , Jing Fei Chen , Huijie Xie , Zhe Hu , Bradley L. Givot , Carl A. Stover , Lin Zhao , Gilles J. Benoit , Robert D. Taylor
CPC classification number: G02B5/285 , B32B27/30 , B32B2307/412 , B32B2307/42 , B32B2457/00
Abstract: A housing (185) for an electronic device (170) includes an optical film (100) having an optical transmittance for substantially normally incident light having a band edge separating first and second wavelength ranges, where the first wavelength range extends from about 400 nm to about 700 nm and the second wavelength range is at least about 100 nm wide and disposed between about 800 nm and about 1100 nm. For substantially normally incident light, an average optical reflectance of the optical film is greater than about 90% in the first wavelength range, and an average optical transmittance of the optical film is greater than about 80% in the second wavelength range. For at least one frequency in a range of about 0.1 GHz to about 90 GHz and for substantially normally incident radiation, the optical film transmits at least about 95% of the incident radiation.
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公开(公告)号：US12147066B2
公开(公告)日：2024-11-19
申请号：US18567823
申请日：2021-06-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Bharat R. Acharya , Jaewon Kim , Jingfei Chen , Huijie Xie , Zhe Hu
Abstract: An optical stack (100) includes a substrate (110), a radio-wave anti-reflection sheet (130) configured to reduce reflection from the optical stack (100) of radio waves at a predetermined operating frequency (f), and a visible light reflective, infrared light transmissive multilayer optical film (120) disposed between the radio-wave anti-reflection sheet (130) and the substrate (110). For radiation substantially normally incident on the radio-wave anti-reflection sheet (130) and for a first frequency range at least 20 GHZ wide, centered on the predetermined operating frequency (f), and disposed between about 1 GHZ and about 120 GHZ, a return loss of the optical stack (100) is asymmetric about the predetermined operating frequency (f) in the first frequency range. The optical stack (100) has a largest return loss S11L in the first frequency range of less than −10 dB and a difference between the largest return loss S11L and a smallest return loss S11S in the first frequency range is less than about 2 dB.
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公开(公告)号：US20230063818A1
公开(公告)日：2023-03-02
申请号：US17889755
申请日：2022-08-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Edward Scott Hagermoser , Fan Long
IPC: G06F3/042
Abstract: A display system includes visible light-emitting first devices and infrared light-emitting second devices, infrared light-detecting third devices, an optically reflecting first film between the third devices and the first and second devices, and an optically reflecting second film between the first film and third devices. The optically reflecting second film defines first openings aligned with the third devices in a one-to-one correspondence. The first devices emit a first wavelength in a visible wavelength range, and the second devices are configured to emit a second wavelength in an infrared wavelength range. The third devices are configured to detect the second wavelength. The first film has an average reflectance of greater than 60% for the visible wavelength range, and an average transmittance of greater than 50% for the infrared wavelength range. The second film has an average reflectance of greater than 60% for the visible and infrared wavelength ranges.
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公开(公告)号：US20240023905A1
公开(公告)日：2024-01-25
申请号：US18266049
申请日：2021-12-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhiping Liu , Fan Long , John A. Wheatley , Bharat R. Acharya , Ryan T. Fabick , Zhe Hu , Edward J. Kivel
IPC: A61B5/00 , A61B5/117 , A61B5/1455
CPC classification number: A61B5/7445 , A61B5/0062 , A61B5/117 , A61B5/14552 , A61B5/6826 , A61B5/489 , A61B5/14558
Abstract: A display system for sensing a user body portion, including a display panel configured to form an image for viewing by the user, an optical reflector having a plurality of polymeric layers, and at least one optical sensor for sensing a visible light having at least one visible wavelength and an infrared light having at least one infrared wavelength. The optical sensor senses the visible and infrared lights after the visible and infrared lights are transmitted by the optical reflector. The optical reflector has an average optical reflectance greater than 80% in the visible wavelength range, an optical transmittance greater than about 50% at the infrared wavelength, an optical transmittance of greater than about 2% and less than about 10% at the visible wavelength, and an optical transmittance versus wavelength with a bandpass segment having a full width at half maximum that includes the visible wavelength.
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Patent Agency Ranking
公开(公告)号：US20230267761A1
公开(公告)日：2023-08-24
申请号：US18017151
申请日：2020-07-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jingfei Chen , Huijie Xie , Fan Long , Yan Yan Zhang , Zhe Hu
IPC: G06V40/13 , G02F1/1333 , G06V40/12 , H04M1/02
CPC classification number: G06V40/1318 , G02F1/13338 , G06V40/1324 , G06V40/1341 , H04M1/0266
Abstract: An electronic device (200) includes a liquid crystal display (LCD) panel (204), a cover layer (218), one or more light sources (224), and an optical sensor module (226). The LCD panel (204) receives a contact input associated with a fingerprint of a user. The cover layer (218) includes a first major surface (228) and a second major surface (230) opposite to the first major surface (228), and is disposed on the LCD panel (204). The cover layer (218) defines a first axis (AA′) normal to the first major surface (228). The optical sensor module (226) receives a light from the predetermined fingerprint sensing area (222) to detect the fingerprint. The optical sensor module (226) at least partially overlaps with the predetermined fingerprint sensing area (222) along the plane of the first major surface (228). The optical sensor module (226) defines a second axis (BB′) normal to a surface of the optical sensor module (226). The second axis (BB′) is inclined at an inclination angle relative to the first axis (AA′) of the cover layer (218).
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公开(公告)号：US20240295304A1
公开(公告)日：2024-09-05
申请号：US18663323
申请日：2024-05-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Fan Long , Edward S. Hagermoser , Jathan D. Edwards
IPC: F21V9/14 , A61L2/08 , A61L2/10 , F21Y113/10 , G02F1/1335 , G02F1/13357
CPC classification number: F21V9/14 , A61L2/085 , A61L2/10 , G02F1/133536 , G02F1/133603 , F21Y2113/10 , G02F2203/11
Abstract: A display system includes visible light emitting first devices configured to emit a first light having at least a first visible wavelength; ultraviolet light emitting second devices configured to emit a second light having at least a second ultraviolet wavelength; a display panel disposed on the first and second devices; and a reflective polarizer disposed between the display panel and the first and second devices, such that the reflective polarizer has, for the visible wavelength, an average optical reflectance of greater than about 50% when an incident light is polarized along an in-plane first direction and an average optical transmittance of greater than about 50% when the incident light is polarized along an in-plane orthogonal second direction; and an optical transmission of greater than about 30% for the at least the second wavelength and for at least one of the first and second polarization states.
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公开(公告)号：US20240264347A1
公开(公告)日：2024-08-08
申请号：US18567823
申请日：2021-06-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Bharat R. Acharya , Jaewon Kim , Jingfei Chen , Huijie Xie , Zhe Hu
CPC classification number: G02B5/26 , G01S7/03 , G01S13/931 , G02B1/04 , G02B5/208 , G02B5/3008
Abstract: An optical stack (100) includes a substrate (110), a radio-wave anti-reflection sheet (130) configured to reduce reflection from the optical stack (100) of radio waves at a predetermined operating frequency (f), and a visible light reflective, infrared light transmissive multilayer optical film (120) disposed between the radio-wave anti-reflection sheet (130) and the substrate (110). For N radiation substantially normally incident on the radio-wave anti-reflection sheet (130) and for a first frequency range at least 20 GHz wide, centered on the predetermined operating frequency (f), and disposed between about 1 GHz and about 120 GHz, a return loss of the optical stack (100) is asymmetric about the predetermined operating frequency (f) in the first frequency range. The optical stack (100) has a largest return loss S11L in the first frequency range of less than −10 dB and a difference between the largest return loss S11L and a smallest return loss S11S in the first frequency range is less than about 2 dB.
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公开(公告)号：US11954939B2
公开(公告)日：2024-04-09
申请号：US18017151
申请日：2020-07-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jingfei Chen , Huijie Xie , Fan Long , Yan Yan Zhang , Zhe Hu
IPC: G06V40/13 , G02F1/1333 , G06V40/12 , H04M1/02
CPC classification number: G06V40/1318 , G02F1/13338 , G06V40/1324 , G06V40/1341 , H04M1/0266
Abstract: An electronic device (200) includes a liquid crystal display (LCD) panel (204), a cover layer (218), one or more light sources (224), and an optical sensor module (226). The LCD panel (204) receives a contact input associated with a fingerprint of a user. The cover layer (218) includes a first major surface (228) and a second major surface (230) opposite to the first major surface (228), and is disposed on the LCD panel (204). The cover layer (218) defines a first axis (AA′) normal to the first major surface (228). The optical sensor module (226) receives a light from the predetermined fingerprint sensing area (222) to detect the fingerprint. The optical sensor module (226) at least partially overlaps with the predetermined fingerprint sensing area (222) along the plane of the first major surface (228). The optical sensor module (226) defines a second axis (BB′) normal to a surface of the optical sensor module (226). The second axis (BB′) is inclined at an inclination angle relative to the first axis (AA′) of the cover layer (218).
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公开(公告)号：US20230250937A1
公开(公告)日：2023-08-10
申请号：US18102851
申请日：2023-01-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Fan Long , Edward S. Hagermoser , Jathan D. Edwards
CPC classification number: F21V9/14 , A61L2/10 , A61L2/085 , F21Y2113/10
Abstract: A display system includes visible light emitting first devices configured to emit a first light having at least a first visible wavelength; ultraviolet light emitting second devices configured to emit a second light having at least a second ultraviolet wavelength; a display panel disposed on the first and second devices; and a reflective polarizer disposed between the display panel and the first and second devices, such that the reflective polarizer has, for the visible wavelength, an average optical reflectance of greater than about 50% when an incident light is polarized along an in-plane first direction and an average optical transmittance of greater than about 50% when the incident light is polarized along an in-plane orthogonal second direction; and an optical transmission of greater than about 30% for the at least the second wavelength and for at least one of the first and second polarization states.
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