Organic thin-film transistors for organic light-emitting flat-panel display backplanes
The performance of organic thin-film transistors (OTFTs) has improved significantly in the last several years and it now appears likely that they will find application in low-cost large-area electronic applications. Active-matrix displays are of special interest and integration of OTFTs with organic...
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Veröffentlicht in: | IEEE journal of selected topics in quantum electronics 1998-01, Vol.4 (1), p.100-104 |
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Sprache: | eng |
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Zusammenfassung: | The performance of organic thin-film transistors (OTFTs) has improved significantly in the last several years and it now appears likely that they will find application in low-cost large-area electronic applications. Active-matrix displays are of special interest and integration of OTFTs with organic light-emitting devices (OLEDs) in all-organic displays is particularly attractive. The device requirements for active-matrix OLED displays are very similar to those of active-matrix liquid crystal displays (AMLCDs) and can be satisfied with OTFTs fabricated using stacked pentacene active layers. Such devices have demonstrated field-effect mobility near 1.5 cm/sup 2//V/spl middot/s, on/off current ratio near 10/sup 8/, near-zero threshold voltage, and subthreshold slope less than 1.6 V/decade. These characteristics are similar to those obtained with hydrogenated amorphous silicon (a-Si:H) devices and such devices would allow the use of polymeric substrates with advantages in weight, ruggedness, and cost compared to glass substrates currently used with a-Si:H devices in AMLCDs. |
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ISSN: | 1077-260X 1558-4542 |
DOI: | 10.1109/2944.669475 |