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:
Sep. 12, 2017
Filed:
Oct. 31, 2011
Stephen Kitson, Alveston, GB;
Mario Ariosto Matranga, Avon, GB;
Timothy Taphouse, Dursley, GB;
Daniel M. Younger, Norwich, GB;
Christopher Newton, Weston Super Mare, GB;
Stephen Kitson, Alveston, GB;
Mario Ariosto Matranga, Avon, GB;
Timothy Taphouse, Dursley, GB;
Daniel M. Younger, Norwich, GB;
Christopher Newton, Weston Super Mare, GB;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A reflective display device includes a pixel structure () and a liquid crystal () containing a dye. The pixel structure () provides the liquid crystal () with a first tilt state and a second tilt state that are stable absent application of an electric field. In the first tilt state, the liquid crystal () is in an untwisted configuration. In the second tilt state, the liquid crystal () is in a twisted configuration, and the dye has an effective absorption that is higher than an effective absorption of the dye when the liquid crystal () is in the first tilt state.