World’s first dynamic shape-morphing smartphone-type screen with built-in speaker, all while maintaining ultra-thin flexibility

https://www.eurekalert.org/news-releases/1078053

"smaller, less complex, bendable, foldable, rollable, stretchable... no hinges, sliders, motorized arms... ultra-thin piezoelectric polymer actuator enables curves: concave/ convex, S-shaped, inversed S-Shaped, wave-like... deformation achieved through electrical signals... display surface emits sound... morphing mobile displays, immersive automotive dashboards, audiovisual wearables, interactive soft robots with expressive surfaces"