Switched-capacitor circuits using polysilicon on quartz thin-film technology
- 2 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
It is shown that switched capacitor amplifiers and digital-to-analog converters can be built with adequate speed, voltage swing, and precision for AMLCDs (active-matrix liquid crystal displays) and other large-area electronic applications. Fully integrated polysilicon TFT (thin-film transistor) analog switched-capacitor circuits offer an alternative approach to data driver design. Switched capacitor circuits built entirely using polysilicon thin-film devices on quartz substrates has been demonstrated. Charge redistribution amplifiers and digital-to-analog converters are shown to operate at clock rates above 50 kHz, despite the relatively poor performance of polysilicon TFTs in comparison to conventional MOSFETs. Better than 8 b DAC accuracy is demonstrated. These results offer the possibility of greatly increased functionality on large-area devices such as flat-panel displays, page-width scan arrays, or page-width print heads.> Author(s) Lewis, A.G. Xerox Palo Alto Res. Center, CA, USA Bruce, R.H.Keywords
This publication has 2 references indexed in Scilit:
- Avalanche-induced effects in polysilicon thin-film transistorsIEEE Electron Device Letters, 1991
- Circuit design and performance for large area electronicsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1990