Nematic liquid crystal bistable display device with grey level
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United States of America Patent
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May 29, 2007
Grant Date -
Jul 1, 2004
app pub date -
May 2, 2002
filing date -
May 4, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a nematic bistable display device, characterized in that it comprises control means (40) for producing, after the anchoring is broken, hybrid textures in which two bistable textures coexist in a controlled proportion within the same pixel, these being separated by 180.degree. volume disclination lines or by 180.degree. reorientation walls on one of the surfaces, and means (40) for the long-term stabilization of the hybrid textures by transformation of the volume lines into surface walls and the immobilization of these walls on the surface.
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Cited Art Landscape
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