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:
Feb. 27, 2001
Filed:
Nov. 03, 1995
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid crystal apparatus is constituted from a liquid crystal device including a first substrate having thereon a plurality of scanning lines, a plurality of data lines intersecting the scanning lines, an active element disposed at each intersection of the scanning lines and data lines, a plurality of pixel electrodes each connected to the scanning line and the data line via the active element and defining a pixel, a second substrate having a counter electrode thereon, and a ferroelectric liquid crystal disposed between the first and second substrates and capable of assuming an anti-ferroelectric state under application of no voltage and a first ferroelectric state and a second ferroelectric state under application of voltages corresponding to polarities of the applied voltages. The liquid crystal device is driven by applying voltages to the pixels so that each pixel is supplied with a voltage having a polarity which is inverted for each prescribed period, and a pixel having the ferroelectric liquid crystal in the first ferroelectric state and a pixel having the ferroelectric liquid crystal in the second state are co-present in each prescribed period. As a result, a difference in display performance when viewed in a oblique direction is alleviated.