Liquid crystal display device having diffusely reflective picture electrode and pleochroic dye
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United States of America Patent
Stats
-
Mar 10, 1987
Grant Date -
N/A
app pub date -
Dec 19, 1980
filing date -
Dec 27, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid crystal display device wherein display elements are arranged in a matrix display on a substrate and the display is driven in response to external display signals is provided. The display device includes a thin film layer having a rugged diffusing surface and an opposed transparent electrode plate spaced apart from the thin film layer. A guest-host liquid crystal material including a pleochroic dye is utilized. The thin film layer may be a metal film such as, aluminum, an aluminum alloy, silver or a silver alloy having a rugged surface for providing a diffused white surface formed by vaccum evaporation, sputtering, heat-treatment, recrystallization or etching.
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