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:
Mar. 28, 1995
Filed:
Aug. 21, 1992
Hisao Okada, Ikoma, JP;
Yuji Yamamoto, Kobe, JP;
Tadatsugu Nishitani, Kuze, JP;
Toshihiro Yanagi, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive circuit for a display apparatus includes an input section for receiving a digital video signal, a voltage supply section for generating a common electrode voltage and a plurality of gradation voltages, a driving section for selecting one of the plurality of gradation voltages according to the input digital video signal and applying the selected gradation voltage to one of the pixel electrodes, and for applying the common electrode voltage to the common electrode, the common electrode voltage being shifted based on a certain relationship so that a central value of the common electrode voltage is different from central values of the gradation voltages.