Liquid crystal display device
US7167141B2 · kind B2 · utility
14Cited by
4References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device used in a miniaturized portable equipment is capable of driving two display panels, consisting of main and sub-display panels. The display device includes a main display panel, a sub-display panel and a drive circuit. The drive circuit can simultaneously drive the main display panel and the sub-display panel. Output terminals are provided to the main display panel, and signals are transmitted to the sub-display panel from the output terminals. Further, the drive circuit includes a power source circuit which is capable of outputting proper common voltages to the main display panel and the sub-display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.