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. 12, 2017

Filed:

Mar. 06, 2015
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Fenghua Zheng, San Jose, CA (US);

Howard H. Tang, San Diego, CA (US);

James C. Aamold, Campbell, CA (US);

Sandro H. Pintz, Cupertino, CA (US);

Chaohao Wang, Sunnyvale, CA (US);

Paolo Sacchetto, Cupertino, CA (US);

Assignee:

APPLE INC., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3614 (2013.01); G09G 3/3655 (2013.01); G09G 2320/029 (2013.01); G09G 2320/0223 (2013.01); G09G 2340/16 (2013.01);
Abstract

Methods and systems for compensating for VCOM variations include determining a voltage change in pixels between frames to be displayed on an electronic display. Based on the determined voltage change, VCOM variation is calculated based on coupling the VCOM to one or more data lines of the electronic display. VCOM compensation is determined and applied to offset for the VCOM variation. Using the VCOM offset, subsequent pixel content for the one or more pixels is written using the compensated VCOM.


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