Recent Progress on the Development of Intrinsically Stretchable Electroluminescent Devices

Intrinsically stretchable electroluminescent (is-EL) devices, whose components are made of mechanically soft and stretchable materials, are gaining significant attention as promising solutions for intrinsically stretchable displays. Compared to conventional stretchable devices with strain-distributing geometries, such as island-bridge or buckling structures, is-EL devices offer simpler device designs, enhanced mechanical reliability, and improved pixel density. This review highlights recent advancements in the development of is-EL devices, classifying them into two categories: alternating-current-driven electroluminescence devices (ACELs) and light-emitting diodes (LEDs). This work begins by exploring key materials for each component of is-EL devices, including electrodes, light-emitting layers, charge transport layers, and interconnections. This work also studies various device fabricat…