Shatterproof Plastic Display Lens with Hard Coating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable communication devices with glass lenses are prone to breakage upon impact, while plastic lenses lack adequate scratch and abrasion resistance, presenting a trade-off between durability and fragility.
Innovation Solution
The implementation of a shatterproof plastic display lens combined with a durable display screen, such as a flexible or plastic OLED screen, along with a replaceable plastic screen protector for enhanced protection against scratches and environmental damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If glass lenses are used, then scratch resistance is improved, but breakage resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining a plastic lens material with a hard coating layer. The plastic substrate provides impact and breakage resistance, while the hard coating layer applied on its surface provides scratch resistance. This composite structure resolves the contradiction by integrating the advantages of both materials - the toughness of plastic and the hardness of coating materials.
2Reliability
If plastic lenses are used, then breakage resistance is improved, but scratch resistance deteriorates
Solution Approach 1:
The patent changes the surface parameters of the plastic lens by applying a hard coating layer. The coating material has higher hardness than the plastic substrate, and this parameter change at the surface level provides scratch resistance without compromising the underlying plastic material's impact resistance and breakage resistance.
3Strength
If glass lenses are used, then hardness is improved, but flexibility deteriorates
Solution Approach 1:
The composite structure of plastic substrate with hard coating allows the lens to maintain flexibility from the plastic base material while the thin coating layer provides the necessary hardness and scratch resistance. The plastic material inherently provides flexibility and adaptability that glass cannot match, while the coating compensates for the hardness deficiency.
Data Source
AI summary
There is described an electronic device comprising a durable display screen, and a shatterproof or plastic display lens adjacent to the durable display screen.