Foldable Display Impact Absorption Layer Design
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Solution Overview
Problem
Foldable and flexible display devices are prone to internal component damage due to their thin thickness, making them vulnerable to external impacts.
Innovation Solution
A foldable display device design incorporating a flexible display panel, a rigid support member, and a first impact absorption member with a modulus of 0.01 Mpa to 500 Mpa, housed within a structure that includes a second impact absorption member and adhesion members to enhance durability against external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a thin thickness design is used for portability, then flexibility and portability are improved, but durability against external impacts deteriorates
Solution Approach 1:
The patent applies beforehand cushioning by placing impact absorption members between the flexible display panel and the support member, and between the support member and the housing. These members are positioned in advance to cushion against external impacts before they reach the fragile display components, resolving the contradiction between thin design for flexibility and protection for durability.
Solution Approach 2:
The patent uses composite materials by combining the flexible display panel with impact absorption members having different physical properties (modulus of 0.01 Mpa to 500 Mpa). This composite structure allows the thin flexible display to be protected by materials with appropriate cushioning properties, achieving both flexibility and impact resistance.
2Object-affected harmful factors
If impact absorption members with low modulus are used, then cushioning effect is improved, but structural support capability deteriorates
Solution Approach 1:
The patent segments the protection system into two distinct parts: impact absorption members with low modulus (0.01-500 Mpa) for cushioning, and a rigid support member for structural support. This segmentation allows each component to specialize in its function - the soft layers absorb impacts while the rigid support maintains structural integrity, resolving the contradiction between cushioning effect and structural support capability.
Solution Approach 2:
The patent applies local quality by giving different physical properties to different parts of the structure. The impact absorption members have low modulus for cushioning where impacts occur, while the support member has high rigidity for structural support. This localized differentiation of material properties resolves the contradiction between needing soft cushioning and hard support in the same device.
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 design significantly improves the display device's durability against external impacts by effectively distributing and absorbing stress, reducing the likelihood of damage to internal components while maintaining flexibility.
Implementation Method 1
The first impact absorption member may include a porous material
Implementation Method 2
a first impact absorption member, and a housing. The support member may be below the flexible display panel and have a rigid property. The first impact absorption member may be below the support member and have a modulus of 0.01 Mpa to 500 Mpa
Data Source
AI summary
A display device includes: a flexible display panel; a support member below the flexible display panel and having a rigid property; a first impact absorption member below the support member and having a modulus of 0.01 Mpa to 500 Mpa; and a housing having at least a portion below the first impact absorption member and configured to accommodate the flexible display panel, the support member, and the first impact absorption member.