18653598. Adhesive Structures for Electronic Devices simplified abstract (Apple Inc.)

Adhesive Structures for Electronic Devices

Organization Name

Apple Inc.

Inventor(s)

Xiaowei Wu of San Jose CA (US)

Farzad Khademolhosseini of Santa Clara CA (US)

Digvijay Raorane of Fremont CA (US)

Chyi-Huey J Yeh of Cupertino CA (US)

Yuxi Zhao of Sunnyvale CA (US)

Terry C Lam of Mountain View CA (US)

Bhadrinarayana Lalgudi Visweswaran of Santa Clara CA (US)

Supriya Goyal of San Jose CA (US)

Yasmin F Afsar of San Jose CA (US)

Paul S Drzaic of Morgan Hill CA (US)

Wei Lv of San Jose CA (US)

Wenyong Zhu of Saratoga CA (US)

Sijun Niu of Santa Clara CA (US)

Masoud Ghorbani Moghaddam of Santa Clara CA (US)

Adhesive Structures for Electronic Devices - A simplified explanation of the abstract

This abstract first appeared for US patent application 18653598 titled 'Adhesive Structures for Electronic Devices

In devices with flexible displays, multilayer adhesive stacks may be included to attach a flexible display panel to the display cover layer in an electronic device. Including multiple layers of adhesive in the adhesive stack provides more degrees of freedom for tuning and optimizing the properties of the adhesive stack, resulting in better performance compared to using a single layer of adhesive. The multilayer adhesive stack may consist of soft adhesive, hard adhesive, hard elastomer, hard polymer, and/or glass layers to optimize mechanical and optical performance.

• Multilayer adhesive stacks provide more degrees of freedom for tuning and optimizing properties.
• Better performance compared to using a single layer of adhesive.
• Soft adhesive layers optimize lateral decoupling during folding and unfolding.
• Harder layers provide rigidity and prevent denting during impact events.
• Layers may include hard elastomer, hard polymer, and glass for mechanical and optical performance.

Potential Applications: - Mobile devices - Wearable technology - Foldable displays

Problems Solved: - Enhanced performance of flexible displays - Improved durability during impact events

Benefits: - Increased flexibility and durability - Optimal mechanical and optical performance

Commercial Applications: Title: Enhanced Adhesive Stacks for Flexible Displays This technology can be utilized in the manufacturing of smartphones, smartwatches, and other electronic devices with flexible displays, enhancing their performance and durability in various applications.

Questions about Multilayer Adhesive Stacks: 1. How do multilayer adhesive stacks improve the performance of flexible displays?

  Multilayer adhesive stacks provide more degrees of freedom for tuning and optimizing properties, resulting in better overall performance compared to single-layer adhesives.

2. What are the key components of a multilayer adhesive stack?

  A multilayer adhesive stack may include soft adhesive, hard adhesive, hard elastomer, hard polymer, and glass layers to optimize mechanical and optical performance.

Original Abstract Submitted

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.