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. 01, 2007
Filed:
Mar. 12, 2004
Hajime Washio, Tenri, JP;
Yasushi Kubota, Sakurai, JP;
Kazuhiro Maeda, Tenri, JP;
Yasuyoshi Kaise, Tenri, JP;
Michael James Brownlow, Oxford, GB;
Graham Andrew Cairns, Oxford, GB;
Hajime Washio, Tenri, JP;
Yasushi Kubota, Sakurai, JP;
Kazuhiro Maeda, Tenri, JP;
Yasuyoshi Kaise, Tenri, JP;
Michael James Brownlow, Oxford, GB;
Graham Andrew Cairns, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a shift register provided with flip-flops that operate in synchronism with a clock signal, and a switching means, which is opened and closed in response to an output of the preceding stage of each of the flip-flops, is installed. The clock signal is selectively inputted by the switching means, and the selected clock signal is inverted and used as a shift register output from each of the stages. Moreover, two kinds of clock signals, each of which has a duty ratio of not more than 50% and which have no overlapped portions in their low-level periods, are used so as to prevent the outputs of the shift-register from overlapping each other. Thus, it is possible to provide a shift register which is preferably used for a driving circuit of an image display device, can miniaturize the driving circuit, and can desirably change the pulse width of the output signal, and also to provide an image display device using such a shift register.