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:
Sep. 24, 2019

Filed:

Oct. 02, 2017
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

James Aamold, Campbell, CA (US);

Fenghua Zheng, San Jose, CA (US);

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

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G09G 3/20 (2006.01); G09G 3/3216 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/2007 (2013.01); G09G 3/3216 (2013.01); G09G 2300/0408 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01); G09G 2330/023 (2013.01); G09G 2330/028 (2013.01); G09G 2340/16 (2013.01);
Abstract

This application relates to systems, methods, and apparatus for reducing the power consumption of a display panel. Specifically, the embodiments discussed herein relate to a panel pixel charge scheme that allows the current output of a display driver to be modified based on the content to be displayed at the display panel. The display driver can compare current and upcoming display content in order to determine how the line voltage for one or more output lines will change over time. If, based on the comparison, the voltage for an output line is not going to vary substantially over time, the bias current output from the display driver can be modified in order to save power. The modification to the bias current can depend on the amount of change the line voltage will undergo in subsequent executions of the content data.


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