Smartphone utilizes 3D information encryption with dual-light-emitting materials

https://phys.org/news/2023-09-smartphone-3d-encryption-dual-light-emitting-materials.html

"3D volumetric optical encryption, moldable and printable dual-light-emitting fluorescent–phosphorescence... viewing-angle-dependent encryption cube-type skeleton polymer composite filaments, employing standard smartphone camera and software... room-temperature multi-light-emitting multidimensional information encryption, enhanced capacity and security... wearable, patchable, and stretchable sensors and displays... high-security information encryption personal biodata protection"