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. 10, 2013
Filed:
Jul. 15, 2010
Akihisa Iwamoto, Osaka, JP;
Hideki Morii, Osaka, JP;
Takayuki Mizunaga, Osaka, JP;
Shinya Tanaka, Osaka, JP;
Tetsuo Kikuchi, Osaka, JP;
Takaharu Yamada, Osaka, JP;
Satoshi Horiuchi, Osaka, JP;
Chikao Yamasaki, Osaka, JP;
Kei Ikuta, Yonago, JP;
Akihisa Iwamoto, Osaka, JP;
Hideki Morii, Osaka, JP;
Takayuki Mizunaga, Osaka, JP;
Shinya Tanaka, Osaka, JP;
Tetsuo Kikuchi, Osaka, JP;
Takaharu Yamada, Osaka, JP;
Satoshi Horiuchi, Osaka, JP;
Chikao Yamasaki, Osaka, JP;
Kei Ikuta, Yonago, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An object is shortening a clock fall-rise period while suppressing an increase in a circuit area, an increase in current consumption, and a cost increase, without generating an abnormal operation, in a shift register within a monolithic gate driver. In a shift register () that operates based on four-phase clock signals, including two-phase clock signals (GCK, GCK) that are provided to odd-order stages and two-phase clock signals (GCK, GCK) that are provided to even-order stages, of which phases are shifted by 90 degrees from each other, a potential of a first clock (CKA) appears as a potential of a scanning signal (GOUT), when a potential of a first node is at a high level, in each stage. In this configuration, the potential of the first node included in each stage is set to a high level based on a pulse of a scanning signal outputted from a pre-stage, and is set to a low level based on a pulse of a scanning signal outputted from a third stage after a stage concerned.