Display with a light modulator and a light source
US6111560A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display comprises a light modulator defining an array of pixels arranged in rows (2) and columns (3) and addressable to select between at least an opaque state for each pixel and a transparent state for each pixel. The display includes a light emitting device arranged adjacent the light modulator to act as a light source for the display. The light modulator is a passive matrix liquid crystal display device and the light source is an electromumninescent LED. The light source is addressable to emit light from selected regions LER, each region overlapping at least a plurality of rows (2) of the light modulator. In this way, the problem of electrical cross-talk in the display is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.