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. 25, 2007
Filed:
May. 28, 2003
Hajime Washio, Sakurai, JP;
Shunsuke Hayashi, Onomichi, JP;
Hajime Washio, Sakurai, JP;
Shunsuke Hayashi, Onomichi, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A driver circuit for a display device includes a plurality of set-reset flip-flops and switch circuits, and is arranged so that a timing pulse for sampling outputted from the flip-flop is supplied to the switch circuit, so as to cause the switch circuit to receive a clock signal. The clock signal operates as a set signal of the next stage flip-flop and outputted as a control signal for carrying out pre-charging of a data signal line and a selected pixel connected to the data signal line, with a switch. Thus, in case of performing pre-charging of a signal supplying line with an internal pre-charging circuit by using a pre-charging power source having small driving ability, this arrangement can provide a driver circuit for a display device capable of preventing fluctuation of a signal supplied to a different signal supplying line, while keeping the circuit scale of the shift register small.