Fig. 1: Stretchable light-emitting drawing displays.

a Schematic illustrating the operation of light-emitting drawing displays. b As-prepared devices emitting light in green, blue, and orange, respectively. Scale bars: 0.5 mm. c Exploded view of the device architecture comprising liquid metal interdigitated electrodes, a light-emitting layer, a dielectric encapsulation layer, and an ionically conductive ink electrode. d Mechanical manipulation of a representative device with a smiling face luminous pattern by bending, twisting, and stretching.