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. 27, 1987
Filed:
Jul. 12, 1985
Peter J Ayliffe, Stansted, GB;
STC plc, London, GB;
Abstract
In operating a display device incorporating a matrix addressed smectic cell, a strobing pulse is applied to each row electrode in turn while data pulses are applied in parallel to the column electrodes. The data pulse voltage excursion is less than the minimum voltage V.sub.T required to switch the cell. For the entry of complete rows the strobing voltage excursion is made larger than twice V.sub.T for fast data entry. For entry of rows in successive segments (e.g. for single character entry) the strobing voltage is less than twice V.sub.T so that successive strobing pulses applied to a single line may be of longer duration but cannot give rise to spurious switching of unselected pixels.