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公开(公告)号:US20210096804A1
公开(公告)日:2021-04-01
申请号:US16585238
申请日:2019-09-27
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US20220413789A1
公开(公告)日:2022-12-29
申请号:US17900680
申请日:2022-08-31
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US11906745B1
公开(公告)日:2024-02-20
申请号:US17721255
申请日:2022-04-14
Applicant: Apple Inc.
Inventor: Qianyi Zhao , Runren Zhang , Zhenggang Cheng , Jeffrey A Griffis , Stephen E Dey
CPC classification number: G02B27/0172 , G06F3/011 , G02B2027/014
Abstract: Display backing components for head-mounted devices (HMDs) are described that reduce eddy currents in magnetic fields generated by a coil. A HMD may include a coil that is used to generate a magnetic field that may be used to track position of other devices with respect to the HMD. Display backing components, used to provide rigidity, are modified with holes or other gaps to interrupt the path of the eddy currents and reduce the interference with the magnetic field, thus improving the power efficiency of the coil and of the HMD. These modifications may be formed by casting, drilling, cutting or otherwise perforating the display backing during manufacture.
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公开(公告)号:US11561752B2
公开(公告)日:2023-01-24
申请号:US17480089
申请日:2021-09-20
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US11782668B2
公开(公告)日:2023-10-10
申请号:US17900680
申请日:2022-08-31
Applicant: Apple Inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
CPC classification number: G06F3/1446 , G06F3/044 , G06F3/0412 , G06F2203/04103
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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公开(公告)号:US11262966B2
公开(公告)日:2022-03-01
申请号:US16585238
申请日:2019-09-27
Applicant: Apple inc.
Inventor: Mahmoud N. Mahmoud , Cheung-Wei Lam , Ali Foudazi , Le Wang , Qianyi Zhao , Kedi Zhang , Xingchao C. Yuan , Jon F. Housour , Gary Chung
Abstract: Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.
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