Display control apparatus and method for driving a display having a plurality of horizontal pixel lines
US5461424A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1993 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Nov 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display control apparatus includes an X-driver for sequentially obtaining the horizontal picture signals from a video signal, and supplying the obtained signal to each of the horizontal pixel lines of an NTSC liquid crystal display panel, and a Y-driver for sequentially selecting the horizontal pixel lines, in a preset number every time the X-driver supplies a horizontal picture signal to each of the horizontal pixel lines. In particular, the Y-driver includes logic gate circuit for updating the preset number on the basis of a selection pattern in which at least first and second numbers of horizontal picture lines are determined as selection units of lines to be selected at one time, the selection units are combined at a predetermined ratio, and the combination of the selection units is repeated for each predetermined number of the horizontal picture signals, thereby assigning the horizontal pixel lines to almost all the horizontal picture signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.