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:
Jun. 13, 2000
Filed:
Feb. 26, 1996
Manabu Iwasaki, Yokohama, JP;
Kazunori Katakura, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A display apparatus which is not adversely affected by a change in the drive waveform or environmental conditions. The display apparatus include a display device, a temperature detection device for detecting the temperature of the display device, and control means that controls the drive conditions for display device. The control means switches a driving waveform based on data from the temperature detection device. The effective value of a selection pulse is preferable changed simultaneously with the waveform switching. The waveform switching may be performed in during a temperature rise rather then during a temperature fall, and may be forbidden for a prescribed period after a waveform switching. The waveform switching may be also be performed between two types of waveforms including or not including a pause period.