The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2024
Filed:
Apr. 08, 2022
Apple Inc., Cupertino, CA (US);
Xiaowei Wu, San Jose, CA (US);
Hoon Sik Kim, San Jose, CA (US);
Yuxi Zhao, Sunnyvale, CA (US);
Terry C Lam, Mountain View, CA (US);
Yasmin F Afsar, San Jose, CA (US);
Chang-Chia Huang, San Jose, CA (US);
Bhadrinarayana Lalgudi Visweswaran, San Mateo, CA (US);
Supriya Goyal, San Jose, CA (US);
Paul S Drzaic, Morgan Hill, CA (US);
Apple Inc., Cupertino, CA (US);
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.