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    Display with optical sensor for brightness compensation
    1.
    发明授权
    Display with optical sensor for brightness compensation 有权

    公开(公告)号：US11145249B1

    公开(公告)日：2021-10-12

    申请号：US16930204

    申请日：2020-07-15

    Applicant: Apple Inc.

    Inventor： Wanglei Han ,  Akshay Bhat ,  Michael H. Lim ,  Kyung Hoae Koo ,  Jiayi Jin ,  David A. Doyle ,  Tae-Wook Koh ,  Jared S. Price ,  Yifan Zhang ,  Mahdi Nezamabadi

    IPC: G09G3/3225 ,  G09G3/00

    Abstract: A display may include pixels (such as light-emitting diode pixels) that are susceptible aging effects (burn-in). To help avoid visible artifacts caused by burn-in during operation of the display, compensation circuitry may be used to compensate image data for the display. An optical sensor may be included behind the pixels to directly measure pixel brightness levels. The optical sensor may provide optical sensor data from testing operations to the compensation circuitry. The optical sensor may gather data during burn-in testing operations. During the burn-in testing operations, pixel groups including both high-usage pixels and low-usage pixels may sequentially emit light while the optical sensor gathers data. Brightness differences between the high-usage pixels and low-usage pixels may be used to characterize pixel aging in the display and compensate image data to mitigate visible artifacts caused by burn-in. The optical sensor may also gather data during global brightness testing operations.

    Electronic devices with display burn-in mitigation
    2.
    发明授权
    Electronic devices with display burn-in mitigation 有权

    公开(公告)号：US10983482B2

    公开(公告)日：2021-04-20

    申请号：US16277842

    申请日：2019-02-15

    Applicant: Apple Inc.

    Inventor： Tae-Wook Koh ,  Yiqiang Nie ,  Yifan Zhang ,  Giovanni M. Agnoli ,  Paul S. Drzaic ,  David A. Doyle

    IPC: G06F1/00 ,  G04G9/00 ,  G09G3/20 ,  G09G3/3225

    Abstract: An electronic device such as a wristwatch device or other device may have a display. The display may be used to continuously display information such as watch face information. A watch face image on the display may contain watch face elements such as watch face hands, watch face indices, and complications. To reduce burn-in risk for watch face elements, control circuitry in the electronic device may impose burn-in constraints on attributes of the watch face elements such as peak luminance constraints, dwell time constraints, color constraints, constraints on the shape of each element, and constraints on element style. These constraints may help avoid situations in which static elements such as watch face indices create more burn-in than dynamic elements such as watch face hands.

    Electronic Devices With Display Burn-in Mitigation
    3.
    发明申请
    Electronic Devices With Display Burn-in Mitigation 审中-公开

    公开(公告)号：US20200218204A1

    公开(公告)日：2020-07-09

    申请号：US16277842

    申请日：2019-02-15

    Applicant: Apple Inc.

    Inventor： Tae-Wook Koh ,  Yiqiang Nie ,  Yifan Zhang ,  Giovanni M. Agnoli ,  Paul S. Drzaic ,  David A. Doyle

    IPC: G04G9/00 ,  G09G3/20 ,  G09G3/3225

    Abstract: An electronic device such as a wristwatch device or other device may have a display. The display may be used to continuously display information such as watch face information. A watch face image on the display may contain watch face elements such as watch face hands, watch face indices, and complications. To reduce burn-in risk for watch face elements, control circuitry in the electronic device may impose burn-in constraints on attributes of the watch face elements such as peak luminance constraints, dwell time constraints, color constraints, constraints on the shape of each element, and constraints on element style. These constraints may help avoid situations in which static elements such as watch face indices create more burn-in than dynamic elements such as watch face hands.

    Electronic devices with robust flexible displays
    8.
    发明授权
    Electronic devices with robust flexible displays 有权

    公开(公告)号：US09947882B2

    公开(公告)日：2018-04-17

    申请号：US15211714

    申请日：2016-07-15

    Applicant: Apple Inc.

    Inventor： Zhen Zhang ,  Yifan Zhang ,  Paul S. Drzaic ,  Paul C. Kelley ,  James P. Landry

    IPC: H01L51/52 ,  H01L51/00 ,  G06F3/041 ,  G06F1/16

    CPC classification number: H01L51/0097 ,  G06F1/1616 ,  G06F1/1652 ,  G06F3/0412 ,  G06F2203/04102 ,  H01L51/5253 ,  H01L51/5275

    Abstract: An electronic device may have a hinge that allows the device to be flexed about a bend axis. A display may span the bend axis. To protect display elements such as pixel circuitry from excessive mechanical stress, the display may include one or more structural protective layers. A structural layer may be incorporated into the display stack as a supportive backing behind the pixel circuitry and/or as a protective cover over the pixel circuitry. The structural layer may include rigid portions and flexible portions. The flexible portions may contain flexible material that separates and adjoins adjacent rigid structures or that fills grooves between adjacent rigid portions. The rigid portions may be formed from thin sheets of glass or other transparent materials. The flexible material in the structural layer may be an elastomeric material having a refractive index that matches that of the glass sheets in the structural layer.

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