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    Electronic Devices With Multilayer Adhesive
    12.
    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.

    Electronic Devices Having Folding Expandable Displays
    16.
    发明申请
    Electronic Devices Having Folding Expandable Displays 有权

    公开(公告)号：US20250120026A1

    公开(公告)日：2025-04-10

    申请号：US18982685

    申请日：2024-12-16

    Applicant: Apple Inc.

    Inventor： Owen D. Hale ,  Tatsuya Sano ,  Chang-Chia Huang ,  Yasmin F. Afsar ,  Hoon Sik Kim ,  Michael B. Wittenberg

    IPC: H05K5/02 ,  E05D3/06 ,  E05D3/12 ,  E05D3/18 ,  H05K5/00

    Abstract: An electronic device has a foldable display. First and second portions of an electronic device housing for the device may be joined using hinge structures. A flexible display may overlap the first housing portion, the hinge structures, and the second housing portion. A layer such as a layer of sheet metal may be used in supporting the display and may overlap the hinge structures. The hinge structures may include gear teeth, belts, and/or other movement synchronization structures. The hinge structures may include members that move relative to each other during bending. The moving members may include bars and links with opposing curved bearing surfaces. Stop surfaces may prevent excessive rotation of the bars and links with respect to each other. The links may rotate about pivot points that lie within the thickness of the display without the hinge structure living within the thickness of the display.

    Electronic devices with flexible display cover layers
    20.
    发明授权
    Electronic devices with flexible display cover layers 有权

    公开(公告)号：US11444268B2

    公开(公告)日：2022-09-13

    申请号：US16774948

    申请日：2020-01-28

    Applicant: Apple Inc.

    Inventor： Hoon Sik Kim ,  Terry C. Lam ,  Chang-Chia Huang ,  Paul S. Drzaic ,  Yasmin F. Afsar ,  Young Cheol Yang ,  Leiming Wang

    IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56 ,  H05K7/20 ,  H05K5/00 ,  H01L27/32

    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 facilitate bending about the bend axis without damage, the display may include a display cover layer with a flexible portion. The flexible portion of the display cover layer may be interposed between first and second rigid portions of the display cover layer. The display cover layer may also include a layer with self-healing properties. The layer of self-healing material may be formed across the entire display cover layer or may be formed only in the flexible region of the display cover layer. The display cover layer may include a layer of elastomer in the flexible region of the display cover layer for increased flexibility. Self-healing may be initiated or expedited by externally applied heat, light, electric current, or other type of external stimulus.

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