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:
Aug. 22, 2017
Filed:
Apr. 29, 2014
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Xiaojiang Yu, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD, Shenzhen, CN;
Abstract
A driving circuit of a display panel includes a switching unit, a clamping unit that prevents reverse current leakage, a reference signal line coupled to a low level signal, a pull-up unit, and a pull-up control unit that drives the pull-up unit. An input end of the pull-up unit receives a second clock signal, and an output end of the pull-up unit is coupled to a current scan line, where the current scan line is coupled to a pull-down maintain unit, and the pull-down maintain unit includes a first switching unit and a second switching unit. The first switching unit and the second switching unit are connected between the current scan line and the reference signal line in parallel, where a control end of the first switching unit and a control end of the second switching unit are coupled to an output end of the switching unit, a control end of the switching unit receives a first clock signal, and an input end of the switching unit receives the second clock signal through the clamping unit.