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Electro-optical glare-protection filter with a liquid crystal cell being a fringe-field switching cell for a welder protection device
专利权人:
发明人:
Leo Keller,Martin Esposito
申请号:
US15538304
公开号:
US10098788B2
申请日:
2015.12.21
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The electro-optical glare protection filter includes a liquid crystal cell, which is a laterally extended liquid crystal cell defining a volume between two laterally extended sides. The volume containing liquid crystals and having, in a vertical direction perpendicular to lateral directions, a thickness being smaller than an extension of the volume in any lateral direction. The FFS cell includes a first electrode structure and a second electrode structure, which are arranged to change an orientation of the liquid crystals in the volume when a voltage is applied between them. Both the first and the second electrode structure are present at the same laterally extended side of the volume. The first electrode structure may include a plurality of electrically separate electrodes, and the second electrode structure may include a plurality of electrode lines.
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