基于岛-桥结构的可拉伸发光器件研究进展

Research Progress of Stretchable Light-emitting Devices Based on Island-bridge Structure

基于岛-桥结构的可拉伸发光器件阵列是当前实现可拉伸显示器的重要方案之一,受到广泛关注。本文汇总了过去十几年中关于岛-桥结构可拉伸发光器件阵列的相关研究内容,对各个器件的性能和特点进行综述。围绕器件的拉伸性、机械稳定性和显示质量等核心问题,重点介绍了发光单元之间可拉伸导线(互连桥)的形状设计与材料选择方案,并对已报道的高像素密度集成策略、阵列拉伸应变分布优化策略和阵列像素密度因拉伸度增大而降低问题的解决方案进行了总结。目前,基于岛-桥结构的可拉伸发光显示阵列研究还处于初级阶段,器件的设计、制备和实现高性能还面临许多挑战,本综述旨在通过对当前研究的总结,为推动可拉伸显示器的发展做出一些贡献。

As one of the most important schemes to realize the stretchable displays,the stretchable light-emitting device array based on the island-bridge structure has attracted much attention.In this paper,we introduce the research progress of stretchable light-emitting device array based on island-bridge structure in the past ten years,and summarize the performance and characteristics of each device.Focusing on the key issues such as stretchability,mechanical stability and display quality of the device,the shape design and material selection scheme of the stretchable wires(interconnect bridge)between luminous units are introduced.The common optimization strategy of high-density pixel integration,tensile strain distribution and the solution for decreased pixel density due to the increase of stretchability are summarized.At present,the research of the stretchable luminescent display array based on islandbridge structure is still in its initial stage.The design,fabrication and realization of high-performance devices still face many challenges.This review aims to make some contribution to advancing the development of stretchable displays by summarizing current research.