Interleaved Resin Tape Substrate for Flexible Displays
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Solution Overview
Problem
Existing electro-optical display apparatuses face challenges in achieving a balance between strength and flexibility, with resin substrates being too flimsy and glass substrates being brittle, leading to difficulties in creating lightweight yet tough configurations for large-screen displays.
Innovation Solution
The use of interleaved strip-shaped tape members made of resin, which are tougher than single-panel resin substrates and lighter than glass substrates, forming a substrate that balances strength and flexibility by creating a matrix of exposed regions for pixel formation and driving circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a resin substrate is used to reduce weight, then the apparatus becomes lighter, but the substrate becomes flimsy and sags under its own weight when enlarged
Solution Approach 1:
The substrate is divided into multiple strip-shaped tape members that are interleaved together. Each tape member maintains the lightweight property of resin while the segmented structure provides distributed support, preventing sagging when the display apparatus is enlarged.
Solution Approach 2:
The substrate combines multiple resin tape members in an interleaved configuration, creating a composite structure that achieves both lightweight properties and enhanced mechanical strength. The composite arrangement allows the substrate to resist sagging while maintaining low weight.
2Strength
If a glass substrate is used to increase strength, then the substrate becomes tough, but it becomes brittle and breaks easily
Solution Approach 1:
The substrate material parameters are changed from traditional glass or single-panel resin to interleaved resin tape members. This parameter change maintains the flexibility and impact resistance of resin while the interleaved structure provides the necessary strength, achieving both toughness and reliability.
3Ease of operation
If a single-panel resin substrate is used, then the substrate remains flexible, but it lacks toughness and sags when enlarged
Solution Approach 1:
The single-panel resin substrate is segmented into multiple strip-shaped tape members that are interleaved. This segmentation maintains the inherent flexibility of resin material while the interleaved configuration provides distributed structural support, preventing sagging and enhancing toughness.
Solution Approach 2:
The substrate structure transitions from a two-dimensional single panel to a three-dimensional interleaved arrangement of multiple tape members. This dimensional change creates overlapping layers that provide both flexibility and enhanced mechanical strength throughout the substrate volume.
Data Source
AI summary
An electro-optical apparatus includes a substrate and multiple pixels formed upon the substrate. The substrate is formed by interleaving multiple strip-shaped tape members configured of a resin.