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:
Oct. 07, 2003
Filed:
Sep. 08, 1998
Paul William Herbert Surguy, Middlesex, GB;
Central Research Laboratories Limited, Middlesex, GB;
Abstract
An optical modulator comprises a layer of a ferroelectric liquid crystal material being provided between an integrated circuit and a light transmissive sheet. The light transmissive sheet and the integrated circuit carry respective electrodes which define selected areas of said layer. In use, the selected areas are addressed with data according to an addressing sequence which is repeated in successive time periods. The optical modulator includes means for providing a plurality of voltage pulses to the one or more electrodes being carried by the light transmissive sheet in a given time period, thus enabling a time dithered greyscale driving scheme to be used.