A Novel Theoretical Framework for a Dual-Action Smartphone Protector: Integrating Impact Resistance with Selective Ocular Filtration

This paper presents a conceptual design for a hybrid mobile screen protector that simultaneously addresses device durability and user health. While current market solutions offer independent protection for either impact resistance or blue light filtration, the proposed "Dual-Shield" model integrates both functions into a single multi-layered interface. This innovation utilizes chemically strengthened glass for shock absorption and a specialized nano-coating for selective blue light attenuation (415-455nm), aiming to reduce both hardware repair costs and digital eye strain.