Liquid crystal display with picture displaying function for displaying a picture in an aspect ratio different from the normal aspect ratio
US6362804B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1998 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0485
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display apparatus and method for displaying a picture different in aspect ratio than the liquid crystal panel. Picture data sampling times are controlled for a first signal electrode driver that drives signal electrodes in a region where a picture different in aspect ratio from the liquid crystal panel is to be displayed and a second signal electrode driver for driving signal electrodes in a region where picture data different in aspect ratio from the liquid crystal panel is not to be displayed. In particular, the starting points of the picture data sampling is controlled in accordance with the picture data's aspect ratio. With the disclosed apparatus and method, it is possible to display a picture different in aspect ratio from the liquid crystal display along with a blanking picture without introducing excessive noise, and the circuit configuration of the liquid crystal display is simplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.