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    Electrostatic Discharge Testing
    3.
    发明申请
    Electrostatic Discharge Testing 有权

    公开(公告)号：US20250110165A1

    公开(公告)日：2025-04-03

    申请号：US18806223

    申请日：2024-08-15

    Applicant: APPLE INC.

    Inventor： Shaowu Huang ,  Jing Li Lim ,  Keong W. Kam ,  Ramachandran Chundru

    IPC: G01R31/00 ,  G02B27/01 ,  G06F1/16 ,  H01R13/648 ,  H05K9/00

    Abstract: A method for electrostatic discharge testing of a head-mounted device including a housing and a headband coupled to the housing includes the steps of applying a shielding material to the head-mounted device such that the shielding material covers an outer surface of the housing and an outer surface of the headband, removing a first portion of the shielding material from a first area of the head-mounted device, applying an electrical charge to the head-mounted device, and assessing the head-mounted device for coupling paths associated with an electrostatic discharge failure.

    Back of cover touch sensors
    4.
    发明授权
    Back of cover touch sensors 有权

    公开(公告)号：US10444918B2

    公开(公告)日：2019-10-15

    申请号：US15691283

    申请日：2017-08-30

    Applicant: Apple Inc.

    Inventor： Wencong Zhu ,  Albert Lin ,  Alexander A. Penn ,  Ashray Vinayak Gogte ,  Chun-Hao Tung ,  Hao Zhang ,  Hui Zhou ,  John Z. Zhong ,  Steven P. Hotelling ,  Sudip Mondal ,  Sumant Ranganathan ,  Sunggu Kang ,  Ramachandran Chundru ,  Viswa B. Pilla

    IPC: G06F3/044

    Abstract: Touch sensor configurations for reducing electrostatic discharge events in the border area of a touch sensor panel is disclosed. Touch sensors (e.g., electrodes formed on the cover material and/or the opaque mask) can be susceptible to certain events such as arcing and discharge/joule heating, which may negatively affect touch sensor performance. Examples of the disclosure can include increasing the trace width, spacing, and/or thickness in the border area relative to the trace width, spacing, and/or thickness in the visible/active area along one or more sides of the touch sensor panel. In some examples, touch electrodes can be located exclusively in the visible/active areas along one or more sides of the touch sensor panel, while dummy sections can be included in both the border and visible/active areas. Additionally or alternatively, one or more gaps between adjacent touch electrodes in the border area or serpentine routing can be included.

    Electronic Device Display With Electrostatic Discharge Recovery Capabilities
    7.
    发明申请
    Electronic Device Display With Electrostatic Discharge Recovery Capabilities 审中-公开
    具有静电放电恢复能力的电子设备显示

    公开(公告)号：US20160063659A1

    公开(公告)日：2016-03-03

    申请号：US14841544

    申请日：2015-08-31

    Applicant: Apple Inc.

    Inventor： Mohammad Ali Jangda ,  Sang Y. Youn ,  Wei H. Yao ,  Hyunwoo Nho ,  Arthur L. Spence ,  Viswa B. Pilla ,  Axel B. Schumacher ,  Ramachandran Chundru

    IPC: G06T1/00 ,  G06T1/60 ,  G09G3/00

    CPC classification number: G06T1/20 ,  G09G3/2092 ,  G09G5/003 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2330/12 ,  G09G2360/18

    Abstract: An electronic device may be provided with a housing such as a metal housing in which a display is mounted. Control circuitry in the electronic device such as a system-on-chip integrated circuit may produce image data. A display driver integrated circuit may receive the image data from the system-on-chip integrated circuit and may display the image data on the display. In the absence of electrostatic discharge, the display driver integrated circuit may operate normally and may generate a heartbeat signal. When disrupted due to electrostatic discharge, the display driver circuitry may cease production of the heartbeat signal. The system-on-chip integrated circuit can implement a watchdog timer. If the watchdog timer times out because the heartbeat signal is not received within a timeout period, the system-on-chip integrated circuit may reset the display.

    Abstract translation: 电子设备可以设置有诸如其中安装有显示器的金属外壳的壳体。 诸如片上系统集成电路的电子设备中的控制电路可以产生图像数据。 显示驱动器集成电路可以从片上系统集成电路接收图像数据，并且可以在显示器上显示图像数据。 在没有静电放电的情况下，显示驱动器集成电路可以正常工作并且可以产生心跳信号。 当由于静电放电而中断时，显示驱动器电路可能停止产生心跳信号。 系统级芯片集成电路可以实现看门狗定时器。 如果看门狗定时器超时，因为超时时间内没有收到心跳信号，片上系统集成电路可能会重置显示。

    Electrostatic Shield For Electronic Device
    8.
    发明申请
    Electrostatic Shield For Electronic Device 有权

    公开(公告)号：US20250113474A1

    公开(公告)日：2025-04-03

    申请号：US18806239

    申请日：2024-08-15

    Applicant: APPLE INC.

    Inventor： Shaowu Huang ,  Keong W. Kam ,  Ramachandran Chundru ,  Jing Li Lim ,  Martin R. Kardasz ,  Jan K. Quijalvo ,  Michael J. Woods

    IPC: H05K9/00 ,  G06F1/16

    Abstract: A head-mounted device includes a frame and a stage movably coupled to the frame. The head-mounted device includes an optical module that is configured to show content, is coupled to the stage, and is configured to move laterally relative to the frame. An optical module control board is configured to provide the content to the optical module and has a surface that includes exposed electrical connections positioned around a perimeter of the surface. The head-mounted device also includes a shield assembly that has a first shield portion and a second shield portion. The first shield portion is configured to cover the surface of the optical module control board, to extend partially around the perimeter of the surface to cover the exposed electrical connections, and to dissipate an electrical charge. The second shield portion is configured to cover a flexible electrical connector.

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