Method of controlling a field emission device
US5477110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/2014
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital video word (14) that is utilized to specify an image to be displayed by a field emission device is divided into a plurality of digital subwords (16, 17). Each digital subword (16, 17) is utilized to create a control signal (21, 22) that is applied to an input (23, 26, 32, 33) of a drive source (24, 27, 31). The digital subwords (16, 17) divide the control signals (21, 22) into time slots wherein each time slot has a duration that is greater than the duration of time slots represented by the original digital video word (14). In response to the control signals (21, 22) the drive source (24, 27, 31) provides a drive signal (28, 34) that has an output value and duration that is controlled by the duration of the control signals, and by an active and inactive state encoded by the control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.