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. 17, 2010
Filed:
Jan. 26, 2006
Takashi Nakamura, Kumagaya, JP;
Hirotaka Hayashi, Fukaya, JP;
Hisao Fujiwara, Ageo, JP;
Masao Karube, Fukaya, JP;
Kazuo Nakamura, Kitamoto, JP;
Masakatsu Kitani, Fukaya, JP;
Takashi Nakamura, Kumagaya, JP;
Hirotaka Hayashi, Fukaya, JP;
Hisao Fujiwara, Ageo, JP;
Masao Karube, Fukaya, JP;
Kazuo Nakamura, Kitamoto, JP;
Masakatsu Kitani, Fukaya, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A signal line drive circuit according to the present invention has: a latch circuit which latches digital pixel data; a D/A converter which converts a latch output from the latch circuit into an analog video signal; an AMP which amplifies the analog video signal converted by the D/A converter; and a signal selection circuit which selects a signal line to which the analog video signal amplified by the AMP is supplied. The AMP has: an odd number of inverters which are cascade-connected; capacitor elements which are respectively connected between stages of the inverters and between an input terminal of the inverter on a first stage and an output terminal of the inverter on a last stage; a first power supply line which supplies a power supply voltage to the inverter on the first stage; and a second power supply line which supplies a power supply voltage to inverters other than the inverter on the first stage. The accuracy of the AMP can be improved by separating the power supply line for only the inverter on the first stage.