Process Technology for High-Resolution AM-PLED Displays on Flexible Metal-Foil Substrates

摘要

The first successful integration of a polysilicon thin-film transistor (TFT) backplane with polymer light-emitting diodes (PLEDs) onto a flexible stainless steel foil is described, and a high-resolution (230 dots/in.) monochrome active-matrix polymer light-emitting diode (AM-PLED) display is demonstrated. The process technology required to implement this high-resolution AM-PLED display onto a flexible metal-foil substrate is discussed. This technology primarily consists of the preparation of flexible metal foil, fabrication of the active matrix polysilicon TFT backplane, and integration with top-emitting PLEDs.