| Presentation | 1999/1/22 An Offset Cancel Circuit for Integrated Data-Driver composed of Low-temperature poly-Si TFTs Ryuichi Hashido, Akihiro Suzuki, Akihiko Iwata, Mitsuo Inoue, Hitoshi Nagata, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a data driver composed of poly-Si TFTs fabricated at low temperature, for a large LCD panel. This technique of making poly-Si TFTs on glass at low temperature makes it possible to build a data driver within a LCD panel, however, the performance made of such poly-Si TFT is of very uneven quality. Therefore, operational amplifier(Op-Amp)made from this TFT has large offset voltage causes vertical cross-talk. In this report, we present, first, the problems arising due to using conventional offset-cancel-technique and then propose a new offset-cancel-technique which consists of two new offset-cancel-circuit, one prevents an oscillation and other one compensates transfer, and a new sequential wave-form which cancels offset voltage caused by uneveness of DC gain of Op-Amps. The proposed technique has been successfully checked experimentally and experimental results agree well with the theoritical results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | low temperature / poly-Si / TFT-LCD / data-driver / operational amplifier / offset / DC gain |
| Paper # | EID98-125 |
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| Conference Information | |
| Committee | EID |
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| Conference Date | 1999/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electronic Information Displays (EID) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Offset Cancel Circuit for Integrated Data-Driver composed of Low-temperature poly-Si TFTs |
| Sub Title (in English) | |
| Keyword(1) | low temperature |
| Keyword(2) | poly-Si |
| Keyword(3) | TFT-LCD |
| Keyword(4) | data-driver |
| Keyword(5) | operational amplifier |
| Keyword(6) | offset |
| Keyword(7) | DC gain |
| 1st Author's Name | Ryuichi Hashido |
| 1st Author's Affiliation | () |
| 2nd Author's Name | Akihiro Suzuki |
| 2nd Author's Affiliation | |
| 3rd Author's Name | Akihiko Iwata |
| 3rd Author's Affiliation | |
| 4th Author's Name | Mitsuo Inoue |
| 4th Author's Affiliation | |
| 5th Author's Name | Hitoshi Nagata |
| 5th Author's Affiliation | |
| Date | 1999/1/22 |
| Paper # | EID98-125 |
| Volume (vol) | vol.98 |
| Number (no) | 550 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |