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:
Oct. 31, 2017
Filed:
Aug. 21, 2015
Apple Inc., Cupertino, CA (US);
James E. C. Brown, San Jose, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
A gate line driver circuit for a display panel includes a pull up circuit to drive a gate line of a display panel to a positive voltage that causes display panel switch elements that are coupled to the gate line to transition into an on state, a first pull down transistor to drive the gate line to a first negative voltage that causes the coupled display panel switch elements to transition into an off state, and a second pull down transistor to maintain the gate line at a second negative voltage that is less negative than the first negative voltage so as to maintain the coupled display panel switch elements in the off state. Other embodiments are also described and claimed.