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:
Apr. 24, 2001
Filed:
Jul. 21, 1998
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid crystal device having a matrix of pixels formed at intersections of scanning electrodes and data electrodes with e.g., a chiral smectic liquid crystal having at least two stable states, is driven at a high speed by simultaneously selecting M scanning electrodes (M being an integer of at least 2), and applying scanning signals to the simultaneously selected scanning electrodes and data signal to the data electrodes so as to apply writing pulses for determining states of pixels to pixels at the intersections of the selected scanning electrodes and the data electrodes and so that each pixel on the selected scanning electrodes is supplied with writing pulse(s) of a writing polarity having a time-integrated voltage value which is larger than that of writing pulse(s) of an anti-writing polarity, if any.