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.

Date of Patent:
Apr. 17, 2018

Filed:

Aug. 25, 2015
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

James E. C. Brown, San Jose, CA (US);

Fenghua Zheng, Cupertino, CA (US);

Sandro H. Pintz, Menlo Park, CA (US);

Assignee:

APPLE INC., Cupertino, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G02F 1/133 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13306 (2013.01); G09G 3/3677 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0289 (2013.01);
Abstract

A method for operating a gate driver that is driving pixel transistors of a display panel, is described. An internal start pulse is produced in response to an external start pulse and in accordance with a system clock, wherein the internal start pulse is input to a first cell of a gate driver shift register whose outputs are coupled to level shifting output stages that are driving the rows of pixel transistors of the display panel. The produced internal start pulse was qualified by an output of a last cell of the gate driver shift register. Other embodiments are also described and claimed.


Find Patent Forward Citations

Loading…