Power supply circuit of an electro-optical device, driving circuit of an electro-optical device, method of driving an electro-optical device, electro-optical device, and electronic equipment
US6633287B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2000 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Feb 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power supply circuit is provided for supplying a scanning line selection voltage to an electro-optical device. The electro-optical device includes pixels disposed at intersections between a plurality of scanning lines and a plurality of data lines, a voltage generation circuit for generating a selection voltage having a positive polarity (or a negative polarity) with respect to the center voltage of voltages applied to the data lines, a capacitor for storing the selection voltage, and an inverter circuit for inverting the polarity of the voltage stored in the capacitor with respect to the median voltage, and outputting the resultant voltage as a selection voltage having a negative polarity (or a positive polarity if the selection voltage has a negative polarity).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.