Flexible display driver chips

Abstract

Rapid advancements in the field of flexible display have lifted expectations of the availability of full-flexible display products in near future. A full-flexible, paperlike display requires ultra-thin driver chips embedded in the same flexible substrate. This reduces external connections and cost of product, and it increases system reliability. Organic materials, hydrogenated amorphous silicon (a-Si:H), polysilicon and single-crystal silicon are potential candidates for ultra-thin chips, each with its pros and cons. High mobility transistors are indispensible for video streamings. Threshold instability and self-heating issues demand proper addressing. Different placement schemes of driver chips around TFT matrix and various driving waveforms can be employed to drive heavy loads, especially in case of large-size displays. Technical obstacles must be eliminated in order to realise mass productions of full-flexible display systems. © 2011 Springer Science+Business Media, LLC.