Production characterization of panel aging
US10255881B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Feb 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display calibration system determines compensation factors for each subpixel in an electronic display to compensate for non-uniformity due to aging of the electronic display. The system takes a first measurement of the display at an input setting, instructs the display to operate an input sequence, and takes a second measurement of the display at the same input setting. The system determines one or more compensation factors for each subpixel of the electronic display based on the first measurement, the second measurement, and one or more previous characterizations of a similar subpixel on a similar display. A compensation matrix may be stored in memory on an HMD that houses the electronic display, or it may be stored in the cloud and accessed when the display is operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.