Glassy chiral-nematic liquid crystals and optical devices...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...

Reexamination Certificate

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C428S001300, C252S299010, C252S299620, C252S299630, C252S299640, C252S299650, C252S299660, C252S299670, C252S299700

Reexamination Certificate

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07001648

ABSTRACT:
A glassy chiral-nematic liquid crystal composition includes a compound having the structural formulawherein each N represents a nematic group connected to the 1, 3, 5-benzenetricarbonyl central moiety by a carboxylic ester linkage and Ch represents a chiral group connected to the central moiety by a carboxylic ester linkage. An optical device is formed from at least one of the glassy chiral-nematic liquid crystal compositions.

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