43.4: A Novel Integrated DC-DC Converter Using LTPS TFT
A novel DC‐DC converter has been integrated on a 2.2″ QVGA panel using poly‐silicon thin film transistors. We have adopted a multi‐phase DC‐DC converter structure to supply the positive and negative voltage source for the panel, and decreased the operational frequency of the charge pump. Therefore,...
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| Veröffentlicht in: | SID International Symposium Digest of technical papers 2005-05, Vol.36 (1), p.1442-1445 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A novel DC‐DC converter has been integrated on a 2.2″ QVGA panel using poly‐silicon thin film transistors. We have adopted a multi‐phase DC‐DC converter structure to supply the positive and negative voltage source for the panel, and decreased the operational frequency of the charge pump. Therefore, the frequency of panel controlling signal is lower than 20 KHz, and no external clock signals and capacitors are needed. |
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| ISSN: | 0097-966X 2168-0159 |
| DOI: | 10.1889/1.2036279 |