Flexible Display Panel Bend Region Circuit Wiring via Redox Reaction
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Solution Overview
Problem
Flexible display panels face issues with film layer separation and metal wire breakage in the bend region due to the film structure and bending process, leading to low reliability of the display screen.
Innovation Solution
A flexible display panel design that includes a substrate, a base material reacting layer in the bend region, and circuit wiring formed by reacting a part of the base material reacting layer through an oxidation reduction reaction, with connections via Vander Waals force to enhance adhesion and reduce stress during bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a film structure is used in the bend region, then the flexible display panel can achieve bending capability, but the films may be easily separated and metal wires may break during bending
Solution Approach 1:
The patent changes the physical and chemical parameters of the base material reacting layer through oxidation reduction reactions. The base material layer is transformed into a circuit wiring structure with different electrical and mechanical properties, enhancing both conductivity and structural integrity in the bend region while maintaining flexibility
Solution Approach 2:
The patent employs a composite structure consisting of the substrate, base material reacting layer, and circuit wiring formed through oxidation reduction reactions. This multi-layer composite structure provides enhanced mechanical strength, electrical conductivity, and adhesion, resolving the contradiction between bending capability and reliability
2Quantity of substance
If metal wires are used in the bend region, then electrical connectivity is achieved, but the metal wires may break during the bending process
Solution Approach 1:
The patent transforms the base material layer into a circuit wiring structure through oxidation reduction reactions, changing its electrical and mechanical parameters. This creates a conductive structure that maintains both electrical connectivity and mechanical flexibility, preventing wire breakage during bending while ensuring proper electrical function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reinforces adhesion between the circuit wiring and the base material reacting layer, reducing the risk of separation and breakage, while also counteracting stress during bending, thereby enhancing the reliability of the flexible display panel.
Implementation Method 1
a circuit wiring, which is located in the base material reacting layer and obtained by at least a predetermined part of the base material reacting layer reacted by an oxidation reduction reaction
Implementation Method 2
The circuit wiring and the base material reacting layer are connected through Vander Waals force
Data Source
AI summary
A flexible display panel and a curved display screen are provided. The flexible display panel includes a display region and a border region adjacent to each other and arranged along a first direction, the border region includes a chip region and a bend region, the bend region is located between the display region and the chip region, and the flexible display panel includes: a substrate; a base material reacting layer located on the substrate in the bend region; and a circuit wiring, located in the base material reacting layer, and obtained by at least a predetermined part of the base material reacting layer reacted by an oxidation reduction reaction.