Patents by Inventor JINGFEI CHEN
JINGFEI CHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11954939Abstract: 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).Type: GrantFiled: July 23, 2020Date of Patent: April 9, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jingfei Chen, Huijie Xie, Fan Long, Yan Yan Zhang, Zhe Hu
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Publication number: 20240097812Abstract: After a first network device traces a clock of a second network device, when the first network device cannot trace the clock of the second network device, the first network device modifies a parameter value corresponding to a synchronization source selection parameter of the first network device to a first parameter value, where the first parameter value is superior to a parameter value corresponding to a synchronization source selection parameter of the second network device.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Yawei Zhang, Jingfei Lyu, Jianwu Hao, Songyan Chen
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Publication number: 20230418079Abstract: A display system for imaging a user body portion includes a display panel, an optical sensor disposed on the display panel and configured to detect light reflected by the user body portion, and an optical stack disposed between the display panel and the optical sensor. The optical stack includes a first optical reflector and a light collimating film. The light collimating film includes a plurality of substantially coplanar alternating first and second regions. For an incident light, a visible wavelength range, and an infrared wavelength range, and for each of a first incident angle of less than about 5 degrees and a second incident angle of between about 40 degrees and about 70 degrees, the plurality of polymeric layers has an average optical reflectance of greater than about 70% in the visible wavelength range and an optical transmittance of greater than about 30% in the infrared wavelength range.Type: ApplicationFiled: December 2, 2021Publication date: December 28, 2023Inventors: Shine Long, Xue Mao, Jingfei Chen, Bharat R. Acharya, Huijie Xie, Zhiping Liu, Zhe Hu
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Publication number: 20230367057Abstract: An optical construction (100) includes a lightguide (102), a transmissive reflector (112), and an optical sensor (114). The lightguide (102) includes a first major surface (104) and a second major surface (106) opposite to the first major surface (104). The first major surface (104) includes a first portion (108) and an adjoining second portion (110). The transmissive reflector (112) is disposed adjacent to the first major surface (104) of the lightguide (102). The optical sensor (114) is disposed adjacent to the transmissive reflector (112) opposite to the lightguide (102). The optical sensor (114) is aligned with the first portion (108) of the first major surface (104) of the lightguide (102), such that the optical sensor (114) receives at least a portion of light passing through the first portion (108) of the first major surface (104) and transmitted by the transmissive reflector (112).Type: ApplicationFiled: September 18, 2020Publication date: November 16, 2023Inventors: Zhe Hu, Mingxing Wang, Tuhua Chen, Zhiping Liu, Yang Liu, Xiulong Men, Hailiang Hou, Huijie Xie, Yifei Zheng, Feng Zhao, Jingfei Chen, Bharat R. Acharya, Quinn D. Sanford, Matthew S. Cole, Tao Zhang
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Publication number: 20230267761Abstract: 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).Type: ApplicationFiled: July 23, 2020Publication date: August 24, 2023Inventors: Jingfei Chen, Huijie Xie, Fan Long, Yan Yan Zhang, Zhe Hu
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Patent number: 11525949Abstract: An example article may include an optical filter and a multilayer stack adjacent the optical filter. The multilayer stack may include a plurality of layers. Each respective layer of the plurality layers may define a respective window edge of a plurality of window edges. The plurality of window edges may define an optical window configured to transmit light through the optical filter. At least a first respective window edge of the plurality of window edges may be stepped relative to at least a second respective window edge of the plurality of window edges.Type: GrantFiled: October 20, 2016Date of Patent: December 13, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Guanglei Du, John A. Wheatley, Yihang Lv, Zhiyong Xu, Jingfei Chen
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Publication number: 20220091316Abstract: An optical stack (100) includes an optical diffuser (10) and a first reflective polarizer (40) disposed on the optical diffuser (10). For substantially normally incident light and for nonoverlapping first and second wavelength ranges, the optical diffuser (10) has a first scattering rate R1 for at least one wavelength in the first wavelength range, and a second scattering rate R2 for at least one wavelength in the second wavelength range, such that R1/R2 is greater than or equal to 2. The first reflective polarizer (40) may transmit at least 40% of light for a first polarization state for each wavelength in the first wavelength range, may reflect at least 70% of light for an orthogonal second polarization state for each wavelength in the first wavelength range, and transmit at least 40% of light for each of the first and second polarization states and for each wavelength in the second wavelength range.Type: ApplicationFiled: February 2, 2019Publication date: March 24, 2022Inventors: Fan Long, Huijie Xie, Jingfei Chen, Zhe Hu, John A. Wheatley, Adam D. Haag
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Publication number: 20190293849Abstract: An example article may include an optical filter and a multilayer stack adjacent the optical filter. The multilayer stack may include a plurality of layers. Each respective layer of the plurality layers may define a respective window edge of a plurality of window edges. The plurality of window edges may define an optical window configured to transmit light through the optical filter. At least a first respective window edge of the plurality of window edges may be stepped relative to at least a second respective window edge of the plurality of window edges.Type: ApplicationFiled: October 20, 2016Publication date: September 26, 2019Inventors: Guanglei Du, John A. Wheatley, Yihang Lv, Zhiyong Xu, Jingfei Chen
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Patent number: 10348239Abstract: Multi-layered solar cell devices covered with partially transmissive graphic films. The multi-layered solar cell devices include at least one solar cell, a graphics layer over the solar cell, and a reflective layer. The reflective layer can be behind the solar cell for recycling light or between the partially transmissive graphic film and the solar cell for improved appearance. The multi-layered solar cell devices have a high efficiency and a customizable appearance.Type: GrantFiled: May 2, 2013Date of Patent: July 9, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Onur S. Yordem, Gilles J. B. Benoit, Jingfei Chen, Guanglei Du, Yan Yan Zhang, Jiao Liu, Bo Guo, Timothy J. Hebrink
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Publication number: 20160087116Abstract: The present invention discloses a solar cell panel integrated on a display unit, a display device integrated with the solar cell panel and methods for producing the same. The solar cell panel integrated on a display unit according to the present invention comprises a photoelectric material layer with RGB colors comprising red units, green units and blue units, wherein the red units, green units and blue units are arranged corresponding to pixel arrays in the display unit, and one or two of the red units, green units and blue units are made of the photoelectric active material. The photoelectric active material layer with RGB colors according to the present invention can replace a common color filter.Type: ApplicationFiled: May 5, 2014Publication date: March 24, 2016Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jingfei CHEN, Guanglei DU, Chao TENG
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Publication number: 20150369433Abstract: A display device is provided that includes a photovoltaic cell, a dichroic reflector adjacent to the photovoltaic cell, and a low refractive index layer adjacent to the dichroic reflector. The low refractive index layer can have an index of refraction of from about 1.1 to about 1.4.Type: ApplicationFiled: February 3, 2014Publication date: December 24, 2015Inventors: Jingfei CHEN, Guanglei DU, John A. WHEATLEY, Andrew J. OUDERKIRK
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Publication number: 20140326292Abstract: Multi-layered solar cell devices covered with partially transmissive graphic films. The multi-layered solar cell devices include at least one solar cell, a graphics layer over the solar cell, and a reflective layer. The reflective layer can be behind the solar cell for recycling light or between the partially transmissive graphic film and the solar cell for improved appearance. The multi-layered solar cell devices have a high efficiency and a customizable appearance.Type: ApplicationFiled: May 2, 2013Publication date: November 6, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: ONUR S. YORDEM, GILLES J.B. BENOIT, JINGFEI CHEN, GUANGLEI DU, YAN YAN ZHANG, JIAO LIU, BO GUO, TIMOTHY J. HEBRINK