Creating 3D shapes from a flat surface using LEDs

https://techxplore.com/news/2024-06-3d-flat-surface.html

"generating 3D tactile displays on photo-thermal elastic variable mm-scale smooth 2-layer thin polymer film, using IR LEDs adjusting light intensiy, enabling tactile elements' height/ elasticity/ temperature control for different sections... lower photo-thermal layer, facing LED, absorbs light/ generates heat, upper variable elastic layer is hard at room temperature becoming soft when around 50°C heat causes glass-to-rubber transition... adaptive user interfaces in vehicles, braille displays, vehicle interfaces, metaverse, education"