Transparency viewing device comprising passive matrix LCD
US5835173A · kind A · utility
14Cited by
46References
44Claims
0Family size
Assignee
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Key dates
| Filing date | May 28, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | May 28, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13336
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transparency viewing device including a faceplate adapted for mounting at least one transparency thereon, an LCD array having a given chromaticity underlying the faceplate, a source of backlighting for the LCD array having a variable chromaticity and a controller which controls the chromaticity of the backlighting source based on the chromaticity of the light passing through the film and the LCA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.