High retention-time nonvolatile amorphous silicon TFT memory for static active matrix OLED display without pixel refresh

Yifei Huang, Bahman Hekmatshoar, Sigurd Wagner, James C. Sturm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Existing a-Si floating gate TFT (FG-TFT) nonvolatile memory suffers from two drawbacks: (i) short retention time and (ii) strong dependence of drain saturation current (ID,SAT) on drain voltage. In this study, we present (i) a new device structure that eliminates ID,SAT dependence on drain voltage; (ii) room-temperature retention time of >10 years; and (iii) the integration of this new TFT memory into AMOLED pixels, enabling displays without refresh and providing displays with the ability to store images without power.

Original languageEnglish (US)
Title of host publicationThin Film Transistors 10, TFT 10
PublisherElectrochemical Society Inc.
Pages365-373
Number of pages9
Edition5
ISBN (Electronic)9781607681748
ISBN (Print)9781566778244
DOIs
StatePublished - 2010

Publication series

NameECS Transactions
Number5
Volume33
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

All Science Journal Classification (ASJC) codes

  • General Engineering

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