Color image display device, method of driving the same, and electronic equipment
US6702407B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D30/6739
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gray-scale power supply line supplied to a source signal line driving circuit is made only one system, and each of D/A conversion circuits drives source signal lines in which three source signal lines corresponding to RGB are made a unit and the number of which is a multiple of 3. The periods in which respective source line selecting circuits select source signal lines corresponding to respective colors of the RGB are made synchronous with each other, and the power supply voltage applied to the gray-scale power supply line is changed in one horizontal writing period, so that power supply voltages corresponding to R, G and B are respectively applied to the gray-scale power supply line in periods while the source signal lines of R, G and B are respectively selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.