Light-emitting diode (LED) brightness non-uniformity correction for LED display driver circuit
US11423828B2 · kind B2 · utility
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1References
19Claims
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Key dates
| Filing date | Dec 28, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Dec 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light-emitting diode (LED) display driver circuit includes: a set of channels, each channel of the set of channels having a respective current control circuit; and control circuitry coupled to each respective current control circuit and configured to adjust a respective control signal to each respective current control circuit responsive to an LED brightness estimate for each channel of the set of channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.