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. 10, 2016
Filed:
Dec. 22, 2011
Takahiro Ochiai, Chiba, JP;
Mitsuru Goto, Chiba, JP;
Hiroyuki Higashijima, Konosu, JP;
Yoshihiro Kotani, Chiba, JP;
Shuuichirou Matsumoto, Mobara, JP;
Takahiro Ochiai, Chiba, JP;
Mitsuru Goto, Chiba, JP;
Hiroyuki Higashijima, Konosu, JP;
Yoshihiro Kotani, Chiba, JP;
Shuuichirou Matsumoto, Mobara, JP;
Japan Display Inc., Tokyo, JP;
Abstract
A bidirectional shift register capable of performing a stable shift operation in both directions and an image display device using the same are provided. In forward shift operation, when reference point Nis at H level, (n+4)-th unit register circuit as a rear stage of the bidirectional shift register outputs pulse G(n+4) in synchronization with clock pulse V (n+4) inputted to (n+4)-th unit register circuit. A backward direction trigger signal VSTB is generated not only at the time of start of backward shift, but also, for example, in period (time tto t) of one-phase clock immediately after G(n+4) is outputted in vertical blanking interval of the forward shift. The backward direction trigger signal VSTB is inputted to gate of a transistor provided to set reference point Nof (n+4)-th unit register circuit to H level at the time of start of the backward shift.