MicroLED Patch for Melanogenesis

A surface-lighting microLED patch has been developed that inhibits UV-induced melanogenesis. The research team fabricated the skin-attachable surface-lighting microLED (SμLED, 4 × 4 cm2) patch by utilizing a thousand microLED chips and silica-embedded light diffusion layer. The 100 μm-sized LED chips are vertically interconnected for high flexibility and low heat generation, allowing its long-term operation on the human skin.