Multilayer Protective Film for Electronic Device Scratch Resistance
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Solution Overview
Problem
Portable electronic devices are prone to damage from external impacts and scratches, and existing accessory protection covers are not durable enough to withstand daily use, leading to performance deterioration and aesthetic issues.
Innovation Solution
A detachable accessory device with a multilayered film structure comprising a transparent or translucent first layer, a polymeric second layer, and an anti-wear third layer, mounted on the electronic device to provide scratch resistance and protect the display while allowing light transmission and reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple single-layer protective cover is used, then the device is easy to manufacture and install, but the cover is prone to scratches and performance deterioration during daily use
Solution Approach 1:
The protective cover employs a multilayer film structure comprising a first layer (transparent/translucent), a second layer (polymeric material), and a third layer (anti-wear coating). This composite structure combines the advantages of each material to achieve both aesthetic transparency and enhanced scratch resistance, resolving the contradiction between ease of manufacture and reliability.
Solution Approach 2:
The patent applies different materials and properties to different layers of the protective cover. The first layer provides transparency for aesthetic purposes, the second layer provides polymeric protection, and the third layer provides anti-wear properties. This local differentiation of material qualities allows the cover to simultaneously meet aesthetic requirements and durability requirements.
2Illumination intensity
If a transparent or translucent film is used to maintain aesthetic appearance, then light transmission is preserved, but the film lacks sufficient durability and scratch resistance
Solution Approach 1:
The multilayer film structure combines a transparent first layer that maintains light transmission and aesthetic appearance with a third anti-wear layer that provides durability and scratch resistance. The composite structure allows both optical properties and mechanical strength to be achieved simultaneously.
Solution Approach 2:
The first layer of the film is designed to be transparent or translucent to maintain aesthetic appearance and light transmission, while the third layer is designed with anti-wear properties for durability. This local differentiation of material properties resolves the contradiction between appearance and durability.
3Illumination intensity
If a reflective layer is added to reduce ambient light interference, then display visibility is improved, but the device complexity increases
Solution Approach 1:
The reflective first layer is integrated into a three-layer composite film structure, where it works synergistically with the polymeric second layer and anti-wear third layer. This integration allows the reflective property to be achieved without requiring a separate, complex system, thus improving display visibility while maintaining reasonable device complexity.
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 accessory device effectively prevents scratches and damage to the electronic device, maintaining aesthetic appeal and performance by using a durable, detachable design that enhances protection without compromising visibility or functionality.
Implementation Method 1
a transparent or translucent first layer that is formed on the base of the first plastic substrate to reflect at least a portion of incoming light
Implementation Method 2
a third layer having a predetermined hardness... The accessory device effectively prevents scratches and damage to the electronic device
Data Source
AI summary
An accessory device comprising: a first cover arranged to be opened and closed when the first cover is mounted on an electronic device, the first cover comprising a first plate, at least one first side wall protruding from the first plate in a first direction, and a first film disposed in a space defined by the sidewall and the plate, wherein the first film and the first side wall are at least partially transparent, and wherein the first film comprises a first layer disposed on the first plate, the first layer being at least partially reflective, a second layer disposed on the first layer, the second layer being at least partially formed of a polymeric material, and a third layer that is disposed on the second layer, the third layer being an anti-wear layer.