Patent ID: 11935461
Assignee: LUMILEDS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A control system comprising:
a plurality of pixels, each pixel of the pixel including a pixel driver and a corresponding light emitting diode (LED);
a memory including voltage data stored thereon, the voltage data including one or more of a 3-sigma value that is three times a standard deviation of forward voltages of the pixels, a driver headroom value that indicates how much higher than a forward voltage a driver voltage needs to be for the driver to operate the LED, a resistance value that is an estimate of an equivalent resistance used to determine I*R losses from the control system, or a k-factor value that indicates how much to increase VLED if there is a change in content to be provided by the LED;
a controller coupled to the memory and the pixels, the controller configured to:
sample an anode voltage of each LED of the pixels resulting in sampled voltages;
determine an average voltage based on the sample voltages; and
determine a total voltage to provide to the pixels based on the average voltage and the voltage data.