Foldable Display Window With Polysiloxane Bonding Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a simplified window structure for foldable display devices that maintains durability without the use of a separate protection film, which would otherwise increase thickness and manufacturing costs.
Innovation Solution
A window structure comprising a base layer, a hard coating layer, and a bonding layer with polysiloxane, where the bonding layer is disposed between the base layer and the hard coating layer, and includes a fluorine-based compound and 2-hydroxyethyl ester, providing a durable and optically clear interface without additional protection films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate protection film is applied to the window, then the durability of the display surface is improved, but the thickness of the display device increases
Solution Approach 1:
The patent merges the protection film function with the window structure by forming a hard coating layer directly on the window through bonding layer integration. This eliminates the need for a separate protection film while maintaining protective functionality, thus reducing thickness while preserving durability.
Solution Approach 2:
The patent uses composite materials consisting of a bonding layer containing polysiloxane and a hard coating layer containing fluorine-based compound. This composite structure provides both adhesion to the window and protective/durable surface properties, achieving durability without requiring an additional separate protection film.
2Reliability
If a separate protection film is applied to the window, then the durability of the display surface is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines multiple functions (adhesion, protection, durability) into a single integrated window structure with hard coating layer, eliminating the need for separate protection film application processes. This reduces manufacturing steps and associated costs while maintaining durability.
Solution Approach 2:
The composite structure of bonding layer with polysiloxane and hard coating layer with fluorine-based compound provides durable protection as an integrated unit, simplifying manufacturing by eliminating separate protection film materials and application processes, thereby reducing manufacturing costs.
3Device complexity
If the window structure is simplified by removing the protection film, then the thickness and manufacturing complexity are reduced, but the durability may be compromised
Solution Approach 1:
The patent employs composite materials (bonding layer with polysiloxane + hard coating layer with fluorine-based compound) that provide both structural integration and protective durability. This composite approach maintains durability while achieving structural simplification by combining functions into one integrated window assembly.
Solution Approach 2:
The patent changes the material parameters and composition of the bonding layer and hard coating layer to achieve optimal balance between adhesion, durability, and structural simplicity. By adjusting material properties such as polysiloxane content and fluorine-based compound composition, the window achieves simplified structure without compromising durability.
Data Source
AI summary
Provided is a window including a base layer, a hard coating layer disposed above the base layer, and a bonding layer disposed between the base layer and the hard coating layer. The bonding layer includes polysiloxane.