They systematically designed and optimized the epitaxial structure, device dimensions, sidewall profile, and geometric shape of the DUV micro-LED ... and multifunctional 3D optoelectronic ...

Conventional LED masks, with their rigid design, fail to conform closely to the skin's contours. This limitation causes substantial light reflection, with up to 90% reflected over a distance of 2 cm, ...

A research team has developed a deep skin-stimulating LED mask which has been verified in clinical trials to improve dermis elasticity by 340%.