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:
Apr. 23, 1996
Filed:
Aug. 31, 1994
Masahiro Ise, Kashihara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive voltage generating device for a liquid crystal display device includes a terminal voltage supply source for generating an output voltage of V.sub.S, an actuating voltage supply source for generating an output voltage of V.sub.E, and a plurality of circuit sections. Each circuit section is composed of a first capacitor for storing therein a charge supplied from the terminal voltage supply source, a second capacitor for storing therein a charge transferred from the first capacitor an output terminal section for receiving a voltage V.sub.S from the second capacitor and a switch for switching respective connections between the terminal voltage supply source and the first capacitor, and between the first and second capacitors. The switch is provided for switching between an operation for supplying a charge from the terminal voltage supply source to the first capacitor and an operation for transferring a charge stored in the first capacitor to the second capacitor.