公开(公告)号：US20250028364A1

公开(公告)日：2025-01-23

申请号：US18762440

申请日：2024-07-02

Applicant: Apple Inc.

Inventor： Wenyong Zhu ,  ByoungSuk Kim ,  Hao Chen ,  Sijun Niu ,  Wei Lv ,  Han-Chieh Chang ,  Zhen Zhang

IPC: G06F1/16 ,  G01L1/22

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. The device may have a stainless steel and/or carbon fiber reinforced polymer layer with slots. The slots may overlap the bend axis. The slots may have at least one property that varies in a non-linear manner as a function of position on the layer. The device may include an adhesive layer with a cutout that overlaps the slots. An interface that defines the cutout may have a plurality of recesses with varying depths. A flexible printed circuit may be attached to an edge of the display panel. The display cover layer may overlap a bonding region between the flexible printed circuit and the edge of the display panel. A UV-curable gap filler may be interposed between the flexible printed circuit and the display cover layer.

公开(公告)号：US20250028365A1

公开(公告)日：2025-01-23

申请号：US18762491

申请日：2024-07-02

Applicant: Apple Inc.

Inventor： Wenyong Zhu ,  Sijun Niu ,  Wei Lv ,  Hao Chen ,  Ken Hsuan Liao ,  Tyler R Kakuda ,  Ying-Chih Wang

IPC: G06F1/16

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. The device may have a stainless steel and/or carbon fiber reinforced polymer layer with slots. The slots may overlap the bend axis. The slots may have at least one property that varies in a non-linear manner as a function of position on the layer. The device may include an adhesive layer with a cutout that overlaps the slots. An interface that defines the cutout may have a plurality of recesses with varying depths. A flexible printed circuit may be attached to an edge of the display panel. The display cover layer may overlap a bonding region between the flexible printed circuit and the edge of the display panel. A UV-curable gap filler may be interposed between the flexible printed circuit and the display cover layer.

公开(公告)号：US20240278533A1

公开(公告)日：2024-08-22

申请号：US18653598

申请日：2024-05-02

Applicant: Apple Inc.

Inventor： Xiaowei Wu ,  Farzad Khademolhosseini ,  Digvijay Raorane ,  Chyi-Huey J Yeh ,  Yuxi Zhao ,  Terry C Lam ,  Bhadrinarayana Lalgudi Visweswaran ,  Supriya Goyal ,  Yasmin F Afsar ,  Paul S Drzaic ,  Wei Lv ,  Wenyong Zhu ,  Sijun Niu ,  Masoud Ghorbani Moghaddam

IPC: B32B7/025 ,  B32B3/26 ,  B32B5/02 ,  B32B7/023 ,  B32B7/12 ,  B32B9/00 ,  B32B9/04 ,  B32B27/08 ,  B32B27/36 ,  C09J7/25 ,  C09J9/00 ,  H01L25/075 ,  H10K59/80

CPC classification number: B32B7/025 ,  B32B3/263 ,  B32B5/028 ,  B32B7/023 ,  B32B7/12 ,  B32B9/005 ,  B32B9/047 ,  B32B27/08 ,  B32B27/36 ,  C09J7/255 ,  C09J9/00 ,  B32B2255/10 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2307/204 ,  B32B2307/4026 ,  B32B2307/418 ,  B32B2307/7376 ,  B32B2457/20 ,  C09J2301/208 ,  C09J2301/21 ,  C09J2301/312 ,  C09J2467/006 ,  H01L25/0753 ,  H10K59/871

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.