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:
Aug. 06, 1996
Filed:
Jun. 08, 1994
Yuji Kimura, Yokohama, JP;
Eiichi Ohta, Kawasaki, JP;
Hitoshi Kondo, Machida, JP;
Masaetsu Takahashi, Yokohama, JP;
Kenji Kameyama, Sagamihara, JP;
Katsuyuki Yamada, Mishima, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The present invention discloses a method of operating an active matrix liquid crystal display device having a liquid crystal layer between a pair of substrates and at least one active device to each of picture element electrodes on at least one of the substrates, so that a driving signal applied to a picture element electrode during one frame cycle is always on a side of a voltage having an identical polarity, which is substantially free from scattering in the display, can be operated at a low driving voltage and obtain high contrast.