A threshold voltage variation cancellation technique for analogue peripheral circuits of a display array using Poly-Si TFTs
2006 (English)In: 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS, 2006, 3305-3308 p.Conference paper (Refereed)
Polysilicon thin-film technology has become of great interest due to the demand for large area electronic devices. Display applications, memories and optical copier are among the fields where polysilicon thin-film transistors (poly-Si TFTs) are most commonly used. However the design of analogue blocks, by using Poly-Si TFTs, with constant specifications is very difficult because of the large variation of the threshold voltage of the poly-Si TFT across the wafer and the kink effect makes. In this paper we propose a new circuit that can sense the voltage difference between two TFTs. This voltage can be used in order to design an improved current mirror with cancellation of threshold voltage variation.
Place, publisher, year, edition, pages
2006. 3305-3308 p.
, IEEE International Symposium on Circuits and Systems, ISSN 0271-4302
Analog circuits, Electronic equipment, Polysilicon, Silicon wafers, Threshold voltage, Kink effect, Peripheral circuits, Polysilicon thin-film transistors (poly-Si TFT), Voltage difference, Thin film transistors
IdentifiersURN: urn:nbn:se:kth:diva-51000DOI: 10.1109/ISCAS.2006.1693332ISI: 000245413503172OAI: oai:DiVA.org:kth-51000DiVA: diva2:463157
IEEE International Symposium on Circuits and Systems. Kos, GREECE. MAY 21-24, 2006
QC 201112092011-12-082011-12-082011-12-09Bibliographically approved