Wearable electronic devices are being developed because of their wide potential applications and user convenience. Among them, wearable organic light emitting diodes (OLEDs) play an important role in visualizing the data signal processed in wearable electronics to humans. In this study, textile-based OLEDs were fabricated and their practical utility was demonstrated. The textile-based OLEDs exhibited a stable operating lifetime under ambient conditions, enough mechanical durability to endure the deformation by the movement of humans, and washability for maintaining its optoelectronic properties even in water condition such as rain, sweat, or washing. In this study, the main technology used to realize this textile-based OLED was multi-functional near-room-temperature encapsulation. The outstanding impermeability of TiO₂ film deposited at near-room-temperature was demonstrated. The internal residual stress in the encapsulation layer was controlled, and the device was capped by highly cross-linked hydrophobic polymer film, providing a highly impermeable, mechanically flexible, and waterproof encapsulation.

可穿戴电子设备因其广泛的潜在应用和用户便利性而得到开发。其中，可穿戴有机发光二极管 (OLED) 在将可穿戴电子设备中处理的数据信号可视化给人类方面发挥着重要作用。在这项研究中，制造了基于纺织品的 OLED 并证明了它们的实际效用。基于纺织品的 OLED 在环境条件下表现出稳定的工作寿命，足够的机械耐久性来承受人类运动引起的变形，并且即使在雨水、汗水或洗涤等水条件下也能保持其光电特性的耐洗性。在这项研究中，用于实现这种基于纺织品的 OLED 的主要技术是多功能近室温封装。TiO ₂杰出的抗渗性证明了在接近室温下沉积的薄膜。封装层中的内部残余应力得到控制，器件由高度交联的疏水聚合物薄膜覆盖，提供高度不渗透、机械柔韧和防水的封装。