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:
May. 08, 2001
Filed:
Feb. 11, 1999
Hiroshi Ushiki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
There is provided a low power consumption liquid crystal driving circuit which is able to achieve reduction in the power consumption. In this liquid crystal driving circuit, first charges are supplied to a charge pump capacitor,by connecting one end of the capacitor,to an output of a first regulator and other end of the capacitor,to an output of the second regulator. Then, the capacitor,can be connected in parallel with any one of charge storage capacitors,to,by controlling ON/OFF of analogue switches,to,based on the time division signals &phgr; A to &phgr; E. Then, charges in the capacitor,are supplied to the selected charge storage capacitor to generate a liquid crystal driving intermediate potential.