The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2007
Filed:
Aug. 20, 2004
Richard Jonathan Miller, Malvern, GB;
Victor Chaklam Hui, Malvern, GB;
Richard Jonathan Miller, Malvern, GB;
Victor Chaklam Hui, Malvern, GB;
Qinetiq Limited, , GB;
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.