Biodegradable Touch Screen Protector Layering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional touch screen protectors are often non-biodegradable and contribute to environmental pollution, as they are frequently replaced due to scratches and degradation, and may harbor bacteria unless regularly treated, leading to landfills and environmental impact.
Innovation Solution
A biodegradable touch screen protector comprising layers such as a protective film, an antimicrobial layer, a core layer made from biodegradable materials like polylactic acid or recycled PET, an adhesive layer, and a bottom release layer, which can be applied without special tools and includes features like a blue light filter and polyurethane coating for durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional non-biodegradable materials are used in touch screen protectors, then durability and scratch resistance are improved, but environmental pollution and landfill accumulation worsen
Solution Approach 1:
The patent employs composite materials consisting of multiple layers including a biodegradable core layer (polylactic acid or recycled PET), antimicrobial layer, adhesive layer, and protective film. This composite structure enables the protector to maintain durability and scratch resistance through the protective film and adhesive bonding while the core layer provides biodegradability, resolving the contradiction between strength and environmental harm.
Solution Approach 2:
The patent changes the material parameter from conventional non-biodegradable plastics to biodegradable polymers such as polylactic acid and recycled PET. This parameter change maintains the functional requirements for durability and protection while fundamentally altering the environmental fate of the material, allowing it to decompose naturally after use and reducing landfill accumulation.
2Object-generated harmful factors
If biodegradable materials are used in touch screen protectors, then environmental impact is reduced, but durability and resistance to degradation worsen
Solution Approach 1:
The patent segments the protector into distinct functional layers: a biodegradable core layer for environmental sustainability, an antimicrobial layer for hygiene, an adhesive layer for bonding, and a protective film for scratch resistance. This segmentation allows each layer to perform its specific function optimally, with the protective film providing durability while the core layer ensures biodegradability, thus maintaining service life despite using biodegradable materials.
Solution Approach 2:
The composite structure combines biodegradable materials with protective coatings and adhesive layers to create a multi-functional protector. The protective film and adhesive layer compensate for the reduced durability of biodegradable materials, extending the service life while maintaining environmental benefits. The composite approach allows the biodegradable core to provide eco-sustainability without compromising the protective function.
3Reliability
If multiple layers are added to improve functionality (antimicrobial, protective film), then performance is improved, but device complexity worsens
Solution Approach 1:
The patent integrates multiple functions into a single multi-layer structure where each layer serves dual purposes: the protective film provides scratch resistance and optical clarity, the antimicrobial layer prevents bacterial growth and maintains hygiene, the adhesive layer ensures bonding, and the biodegradable core provides structural support and environmental sustainability. This multi-functionality approach justifies the increased layer complexity by delivering comprehensive protection and performance benefits.
Data Source
AI summary
A biodegradable display protector comprises a top layer; an antimicrobial (AF) layer beneath the top layer; a core layer formed of biodegradable material beneath the AF layer; an adhesive layer beneath the core layer; and a bottom release layer beneath the adhesive layer. The bottom release layer may be peeled off to allow the screen protector to be adhered to a display screen. In the embodiments, biodegradable polyethylene terephthalate (PET) or biodegradable polylactic acid (PLA) may be used for an inflexible protector whereas biodegradable thermoplastic urethane (TPU) may be used for a flexible protector. A thickness of the screen protector may be between about 0.08 mm to about 0.23 mm.