System for printing with programmable spatial light modulator and method
US6456421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Aug 31, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides in one aspect, a method of controlling a SLM comprising the following steps: providing a sequential color SLM controller, and a SLM; providing a means whereby said sequential color SLM controller loads optimum values for a single color into control registers of said SLM, during all the field time slots of each video frame; also causing said SLM to modulate light of said single color, during said field time slots of each video frame, whereby the duty cycle for display of said color is increased relative to operation in a normal sequential color mode. Another aspect of the present invention is an apparatus for controlling a SLM comprising a single color SLM controller, a SLM, and a means for causing said single color SLM controller to load optimum values for a single color into control registers of said SLM during all the field time slots of each video frame; wherein said SLM is caused to modulate light of said single color, during said field time slots of each video frame, whereby the duty cycle for display of said color is increased relative to operation with a sequential color SLM controller in a sequential color mode. Another aspect of the current i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.