Flexible Display Support with Concave Stress Distribution
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Solution Overview
Problem
Flexible display devices face issues with poor bending resistance and impact resistance, leading to potential denaturation and the formation of 'creases' and 'white lines' due to long-term bending, which affects their durability and functionality.
Innovation Solution
A flexible display device with a flexible support structure attached to its backside, featuring a concave design with strip grooves or through holes that disperse bending stress and enhance impact resistance, utilizing a metal film layer with an adhesive layer for attachment, and varying thicknesses to optimize strength and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the flexible display panel is made thin and light to achieve flexibility, then the flexibility and portability are improved, but the bending resistance and impact resistance deteriorate
Solution Approach 1:
The flexible support body is divided into multiple parts with different thicknesses, creating a segmented structure that provides both flexibility and strength. The varying thickness segments allow the support to bend while maintaining structural integrity and distributing stress during bending and impact.
Solution Approach 2:
Different regions of the flexible support body have different thicknesses tailored to their specific functional requirements. The bendable region has different thickness characteristics compared to the unbendable region, optimizing each area for its specific purpose while maintaining overall flexibility.
2Adaptability or versatility
If the flexible display panel is bent for a long time to achieve foldable functionality, then the adaptability and functionality are improved, but the polymer materials undergo denaturation leading to creases and white lines
Solution Approach 1:
The flexible support body acts as a pre-designed cushioning structure that anticipates and prevents the harmful effects of repeated bending. By incorporating varying thicknesses and specific structural features, it cushions and distributes the stress of long-term bending before it can cause polymer denaturation, creases, or white lines in the display.
Solution Approach 2:
The flexible support body utilizes changes in thickness parameter across different regions to optimize its performance. The varying thickness distribution allows the structure to adapt to repeated bending while maintaining structural integrity and preventing material degradation.
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 significantly improves the bending and impact resistance of flexible display panels, preventing local deformations and maintaining display integrity by distributing stress evenly, thus enhancing the durability and reliability of foldable display devices.
Implementation Method 1
the flexible support body further comprises an adhesive layer, the flexible support body is attached to the flexible display panel through the adhesive layer
Data Source
AI summary
The present disclosure relates a display device, including a flexible display panel with a bendable region and a flexible support attached to a back side of the flexible display panel, the flexible support includes a flexible support body, and a first part of the flexible support body corresponding to the bendable region is provided with a concave structure.