Active flat-design video screen
US4974942A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 16, 1988 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An active flat-design video screen is described, having signal line means arranged in lines and columns, these signal line means, at their crossing points, defining picture elements of the video screen, in which case the lines that are arranged in columns are developed as electrodes and the signal line means that are arranged in lines are developed by means of optical waveguides into which, on the input side, a modulated light signal is coupled and which, at each crossing point, have a device for the coupling-out of the respective light signal. In comparison to conventional active flat-design video screens, the video screen according to the invention distinguishes itself particularly by a good picture resolution and a good contrast range, connected with a good regeneration rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.