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:
Sep. 11, 2007
Filed:
Nov. 05, 2003
Hideto Fukuda, Kasugai, JP;
Shinya Udo, Kasugai, JP;
Masao Kumagai, Kasugai, JP;
Osamu Kudo, Kasugai, JP;
Hideto Fukuda, Kasugai, JP;
Shinya Udo, Kasugai, JP;
Masao Kumagai, Kasugai, JP;
Osamu Kudo, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A drive circuit of a display that decreases the number of gates in a selection circuit to reduce chip area. The drive circuit includes a first voltage dividing circuit for generating a plurality of divisional voltages by dividing a predetermined reference voltage. A selection circuit receives a selection signal and selects one of the divisional voltages. The selection circuit includes a plurality of first switch circuits selectively activated in response to the selection signal to select one of the divisional voltages. Each of the first switch circuits is provided with a logic switch function and has an ON resistance when activated. An activated one of the first switch circuits generates the pixel voltage by further dividing the selected one of the divisional voltages.