Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2007-12-25
2007-12-25
Dye, Rena (Department: 1772)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C428S001100, C349S129000, C345S107000
Reexamination Certificate
active
10922512
ABSTRACT:
A phoretic display having a liquid crystal suspension medium and a relief structure alignment layer comprising a relief structure surface incorporating a plurality of indentations. The relief structure alignment layer is adapted to generate a preferred alignment of the liquid crystal suspension medium within the display by creating defects within the alignment of the liquid crystal director at the base of each indentation. The relief structure alignment layer provides a substantially planar liquid crystal director alignment in the vicinity of the internal surface of each indentation and a substantially homeotropic liquid crystal director alignment in the vicinity of the relief structure surface and in the bulk of the liquid crystal material.
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Hui Victor Chaklam
Miller Richard Jonathan
Dye Rena
Hon Sow-Fun
McDonnell Boehnen & Hulbert & Berghoff LLP
Qinetiq Limited
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