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    Electronic Devices With Multilayer Adhesive
    11.
    发明申请
    Electronic Devices With Multilayer Adhesive 有权

    公开(公告)号：US20220388276A1

    公开(公告)日：2022-12-08

    申请号：US17716911

    申请日：2022-04-08

    Applicant: Apple Inc.

    Inventor： Xiaowei Wu ,  Hoon Sik Kim ,  Yuxi Zhao ,  Terry C Lam ,  Yasmin F Afsar ,  Chang-Chia Huang ,  Bhadrinarayana Lalgudi Visweswaran ,  Supriya Goyal ,  Paul S Drzaic

    IPC: B32B7/12 ,  H05K5/00 ,  H05K5/03 ,  C09J9/00 ,  C09J7/00

    Abstract: In devices with flexible displays, multilayer adhesive stacks may be included. A multilayer adhesive may attach a flexible display panel to the display cover layer in an electronic device. Including multiple layers of adhesive in the adhesive stack (as opposed to a single layer) provides more degrees of freedom for the tuning and optimization of the properties of the adhesive stack. The multilayer adhesive stack therefore has better performance than if only a single layer of adhesive is used. The multilayer adhesive stack may include one or more layers of soft adhesive, hard adhesive, hard elastomer, hard polymer, and/or glass to optimize the mechanical and optical performance of the multilayer adhesive stack. Soft adhesive layers may be included to optimize lateral decoupling (e.g., during folding and unfolding) of the adhesive stack. Harder layers may be included to provide rigidity and prevent denting during impact events.

    Flexible circuit substrate with temporary supports and equalized lateral expansion
    17.
    发明授权
    Flexible circuit substrate with temporary supports and equalized lateral expansion 有权

    公开(公告)号：US10199323B2

    公开(公告)日：2019-02-05

    申请号：US15415496

    申请日：2017-01-25

    Applicant: Apple Inc.

    Inventor： Yung-Yu Hsu ,  Hoon Sik Kim ,  Christopher A. Schultz ,  David M. Kindlon ,  Daniel D. Sunshine ,  Paul S. Drzaic ,  Sinan Alousi ,  Terry C. Shyu

    IPC: H01L23/498 ,  H01L25/075 ,  H01L33/62 ,  H05K1/02 ,  H05K1/14 ,  G06F3/041

    Abstract: An item may have a flexible support structure and may include a flexible component. The flexible component may have electrical components mounted on component mounting regions in a flexible circuit substrate. The component mounting regions may be interconnected by serpentine interconnect paths or other flexible interconnect paths. The flexible circuit substrate and component mounting regions may extend along a longitudinal axis of the flexible component or may form a two-dimensional array. Two-dimensional mesh-shaped flexible circuit substrates may be used in forming displays. The mesh-shaped flexible circuit substrates may be auxetic substrates that widen when stretched (e.g., structures with a negative Poisson's ratio that become thicker perpendicular to applied force when stretched) and that therefore reduce image distortion. Temporary tethers may help hold flexible circuit substrates together until intentionally broken following assembly of a flexible component into the flexible support structure.

    Electronic Devices With Folding Displays Having Textured Flexible Areas
    18.
    发明申请
    Electronic Devices With Folding Displays Having Textured Flexible Areas 有权

    公开(公告)号：US20250040329A1

    公开(公告)日：2025-01-30

    申请号：US18911125

    申请日：2024-10-09

    Applicant: Apple Inc.

    Inventor： Que Anh S. Nguyen ,  Christian Weddeling ,  Hoon Sik Kim ,  Terry C. Lam

    IPC: H01L27/15 ,  B32B3/30 ,  B32B17/10 ,  H01L33/20

    Abstract: A foldable electronic device may bend about a bend axis. A foldable display panel may be configured to bend along the bend axis as the foldable device is folded. A display cover layer may overlap the display panel. The display panel may have an array of pixels configured to display an image viewable through the display cover layer. The display cover layer may be formed from a layer of glass. A recess may be formed in the layer of glass that runs parallel to the bend axis and that overlaps the bend axis. The recess forms a flexible locally thinned portion in the glass that allows the display cover layer to bend. A rough surface texture and polymer coating may be provided in the recess. The recess may have shallowly sloping walls.

    Electronic Devices with Expandable Displays
    19.
    发明公开
    Electronic Devices with Expandable Displays 审中-公开

    公开(公告)号：US20230345655A1

    公开(公告)日：2023-10-26

    申请号：US18301911

    申请日：2023-04-17

    Applicant: Apple Inc.

    Inventor： Tatsuya Sano ,  Michael B. Wittenberg ,  Hoon Sik Kim

    IPC: H05K5/02

    CPC classification number: H05K5/0217

    Abstract: An electronic device may have a housing, an expandable display mounted to the housing, and a frame for supporting the expandable display. The housing, display, and frame may be operable in expanded and retracted states. In the retracted state, an exposed portion of the display is viewable on the outside of the device, while a retractable portion of the display is enclosed within the housing and hidden behind the exposed portion of the display. As the device transitions from the retracted state to the expanded state, the retractable portion of the display may roll around an axis onto the front of the device to increase the size of the viewable display area. The frame may have a rigid portion that is mostly solid metal supporting the exposed portion of the display and a flexible portion formed from parallel strips of metal supporting the retractable portion of the display.

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