Display device
US7091946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Apr 26, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mask circuit is provided in a display device having a plurality of pixels. The mask circuit supplies a video signal to each of the pixels in a partial display area selected based on a display area selection signal, and prevents the supply of the video signal to each of the pixels in a background display area. Accordingly, this display device displays an arbitrary pattern at an arbitrary position of the display panel of the display device. In addition, an inverting controlling circuit is provided for inverting the background display signal supplied to each of the pixels in the background display area for each frame. The power consumption of the display device can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.