Plastic transistors in active-matrix displays
2001
The handling of grey levels by these large displays paves the way for electronic paper. The main advantages of using soluble semiconductive polymers in microelectronic devices are ease of processing1,2,3 and mechanical flexibility4. Here we describe an active-matrix display with 64 × 64 pixels, each driven by a thin-film transistor with a solution-processed polymer semiconductor. In a significant step towards low-cost flexible displays, this polymer-dispersed liquid-crystal arrangement gives a reflective, low-power display with paper-like contrast, which can handle 256 grey levels while being refreshed at video speed.
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