Patent · US Active

Pixel signal compensation for a display panel

US10276085B2 · kind B2 · utility

1Cited by

3References

19Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Chaohao Wang · Sunnyvale, US
Paolo Sacchetto · Cupertino, US
Marc Albrecht · Hamburg, DE
Christopher P. Tann · San Jose, US
Shih-Chyuan Fan Jiang · Baoshan, TW
Howard H. Tang · San Jose, US
James E. Brown · Lindon, US
Zhibing Ge · Los Altos, US

Key dates

Filing date	Dec 17, 2015
Grant date	Apr 30, 2019
Priority date	—
Expiry date	Jan 11, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG09G2320/0693
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.