Correction schemes for display panel sensing
US10564774B1 · kind B1 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jun 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0686
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for mitigation of sensing error effects in display panels are disclosed. Display panels, such as pixel-based panels, may have circuitry to sense the luminance values, compare measurements with target luminance values, and provide corrections. Sensing errors, such as ones caused by sensor hysteresis and thermal fluctuations, may lead to overcorrections and visible artifacts. Mitigations schemes discussed herein include filtering of sensed signal with low pass filters, partial correction strategies, and feedforward sensing schemes. Circuitry that implements these schemes are also discussed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.