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:
May. 21, 2002
Filed:
Feb. 08, 1995
Sony Corporation, Tokyo, JP;
Abstract
Method of driving a liquid crystal display such as a ferroelectric liquid crystal display by multiplex addressing. The display has a pair of bases. A transparent electrode layer and an orientation film are formed in this order on each base. The two bases are placed opposite to each other with a certain gap between them. A ferroelectric liquid crystal material is inserted in the gap. Let V be the voltage applied when the transmittivity of the liquid crystal material begins to change. Let V be the voltage applied when the transmittivity of the liquid crystal material substantially assumes its maximum value. First and second select pulses of opposite polarities are applied to the liquid crystal material. Let V be the voltage of the first select pulse. Let V be the voltage of the second select voltage. This method is characterized in that V =±(V −&Dgr;V), where &Dgr;V>0, and that V =∓(V +&Dgr;V), where &Dgr;V>0.