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. 30, 2019

Filed:

Dec. 17, 2015
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Chaohao Wang, Cupertino, CA (US);

Paolo Sacchetto, Cupertino, CA (US);

Marc Albrecht, San Francisco, CA (US);

Christopher P. Tann, San Jose, CA (US);

Shih-Chyuan Fan Jiang, Taipei, TW;

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

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

Zhibing Ge, Sunnyvale, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2092 (2013.01); G09G 2320/0204 (2013.01); G09G 2320/0223 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0285 (2013.01); G09G 2320/0693 (2013.01);
Abstract

This application relates to systems, methods, and apparatus for compensating voltage for pixels of a display panel based on the location of the pixels within the display panel. An amount of voltage compensation is assigned to each pixel or a group of pixels within the display panel in accordance with a calibration of the display panel. During operation of the display panel, pixel data is generated for a location of the display panel, and the pixel data is modified according to the amount of voltage compensation corresponding to the location. By modifying the pixel data in this way, spatial variations in voltage across the display panel can be mitigated in order to reduce the occurrence of certain display artifacts at the display panel.


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