Buffer Chamber Display Panel Impact Resistance
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Solution Overview
Problem
Conventional flexible display devices are prone to deformation and damage under impact forces, significantly shortening their service life and causing property loss to users due to poor impact resistance.
Innovation Solution
A display panel design incorporating a buffer layer with buffer chambers, featuring a substrate and a buffer member made of materials like polyimide, stainless steel, acrylic resin, and a boric acid-modified hydroxy-terminated polysiloxane-silica light impact-hardening polymer composite, which absorbs impact energy and reduces deformation risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional flexible display device is used, then the device is flexible and can be bent, but the device has poor impact resistance and is easily deformed and damaged under impact force
Solution Approach 1:
The patent introduces a buffer layer with buffer chambers between the cover plate and the display panel. These buffer chambers are designed to compress and absorb impact energy before it reaches the screen film layer, providing beforehand cushioning against impact forces. The buffer layer acts as a protective barrier that dissipates kinetic energy through controlled compression, preventing direct transmission of impact forces to the fragile display components.
Solution Approach 2:
The buffer layer is designed with a porous structure containing multiple buffer chambers that can compress and expand. This porous configuration allows the buffer material to deform under impact, creating a gradual compression process that absorbs impact energy. The void spaces within the porous structure collapse in a controlled manner, converting kinetic energy into compression work and reducing the peak impact force transmitted to the display panel.
2Strength
If the buffer layer with buffer chambers is added to improve impact resistance, then the deformation area increases and impact force is distributed, but the device structure becomes more complex
Solution Approach 1:
The buffer layer is segmented into multiple discrete buffer chambers arranged in an array, rather than using a single solid buffer structure. This segmentation allows each chamber to independently compress and absorb impact energy, distributing the impact force across multiple localized deformation zones. The segmented design also facilitates modular manufacturing and assembly, reducing overall structural complexity despite the increased number of components.
Solution Approach 2:
The buffer chambers are nested within the buffer layer substrate, creating a layered structure where the chambers are embedded in the buffer material. This nesting approach integrates the buffer functionality directly into the display panel structure without requiring separate external protective components. The buffer chambers are formed within the thickness of the buffer layer, maintaining a compact overall profile while providing distributed impact absorption.
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 display panel exhibits enhanced impact resistance, prolonging its service life and reducing the risk of damage, as the buffer chambers allow for larger deformation areas and distribute impact forces, thereby protecting the screen film layer and display device.
Implementation Method 1
the buffer member has an elasticity modulus of 30 KPa to 100 KPa
Data Source
AI summary
Provided is a display panel. The display panel includes: a cover plate, a screen film layer, and a buffer layer, wherein the buffer layer is arranged on a side, distal to the cover plate, of the screen film layer, and the buffer layer includes at least one buffer chamber.