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:
Sep. 25, 2001
Filed:
Jun. 05, 1997
Tadashi Aoki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A display apparatus, such as a liquid crystal display apparatus, is constituted by: a display unit including electrodes arranged in a matrix form, a circuit for generating a signal waveform applied to the electrodes of the display unit, and a low-pass filter for removing a frequency component exceeding a prescribed frequency from the signal waveform to inlet ends of the electrodes in the display unit. As a result, the occurrence of a large transient current liable to flow at pixels close to inlet ends of the display unit can be suppressed. The removal of such a high-frequency component may also be performed by superposing split pulses with a resin and a falling portion of a drive signal waveform and by integrating the superposed drive signal waveform.