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:
Oct. 27, 1987
Filed:
Oct. 09, 1985
Shyusuke Endo, Mobara, JP;
Naofumi Aoyama, Mobara, JP;
Toshihiko Yabuuchi, Mobara, JP;
Toshiyuki Sakuma, Ouhara, JP;
Kiyoshige Kinugawa, Mutsusawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device comprising a liquid crystal module including liquid crystal display panel having a plurality of liquid crystal picture elements arranged in a matrix form, and driving circuits for applying driving signals to signal electrodes and to scanning electrodes of the liquid crystal display panel, respectively; a control circuit for controlling the operation of the liquid crystal module; a first circuit for dividing frequency of a timing signal given by the control circuit and producing a first signal of lower frequency; and a second circuit for inverting the first signal of lower frequency once per frame period and generating a second signal to reverse the polarity of voltages applied to liquid crystal display elements with its period .tau..sub.M' satisfying the inequality
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile