Liquid crystal display using opaque flaps for reflection
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United States of America Patent
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Feb 9, 1988
Grant Date -
N/A
app pub date -
May 29, 1986
filing date -
Jun 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid crystal display device is provided comprising a liquid crystal wafer operating by transmission which is disposed in front of a sheet of transparent material having a multitude of parallel opaque flaps substantially perpendicular to the wafer. In daytime use, light rays substantially perpendicular to the wafer pass through the sheet towards the rear of the wafer. For nightime use, the sheet reflects rearwardly of the wafer a part of the light rays coming from a lamp and the flaps stop the other part of these light rays.
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