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.:

US 7173598 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 06, 2007

Filed:

Feb. 22, 2005
Applicants:

Yasushi Kubota, Sakurai, JP;

Hajime Washio, Tenri, JP;

Shigeto Yoshida, Nabari, JP;

Kazuhiro Maeda, Tenri, JP;

Hiroshi Yoneda, Ikoma, JP;

Inventors:

Yasushi Kubota, Sakurai, JP;

Hajime Washio, Tenri, JP;

Shigeto Yoshida, Nabari, JP;

Kazuhiro Maeda, Tenri, JP;

Hiroshi Yoneda, Ikoma, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A shift register circuit includes a plurality of latch circuits connected in series to sequentially transfer a pulse signal ST from one to another, a clock signal line transmitting a clock signal CLK, and a plurality of switching circuits performing electrical connection and disconnection between the clock signal line and the plurality of latch circuits. Upon turning on the shift register, at least one of the switching circuits electrically disconnects at least one of the latch circuits from the clock signal line. During an initialization period immediately after power has been turned on, the frequency of the clock signal CLK is lower than in a normal operation period and gradually increases toward the frequency used in the normal operation period.


Find Patent Forward Citations

Kubota, Yasushi. (2007). Shift register circuit, image display apparatus having the circuit, and driving method for lcd devices (U.S. Patent No. 7173598). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7173598

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