LDI: Brompton debuts Dynamic Calibration
Monday, 25 November 2019
dynacal-uiBrompton’s Dynamic Calibration takes ‘a revolutionary approach’
USA - Brompton Technology’s Dynamic Calibration is a new technology that enables LED panels to achieve a higher brightness and wider colour gamut than is possible with legacy calibration techniques, while maintaining uniformity. Dynamic Calibration is the enabling technology for Brompton HDR, as well as new, performance-enhancing features such as PureTone and ThermaCal.
“Commonly used calibration methods achieve uniformity by sacrificing both brightness and colour gamut, forcing every LED to match the dimmest and palest LEDs in the entire screen. Once calibrated, this is used for all content over the entire life of the panel,” explains Brompton’s CTO Chris Deighton. “However, with ever-increasing demand for better image quality without increased cost, such sacrifices in performance can no longer be justified.”
Brompton’s Dynamic Calibration takes ‘a revolutionary approach to maintaining uniformity, while unlocking the full potential of the LEDs to achieve previously unthinkable levels of brightness and colour saturation’.
To benefit from Dynamic Calibration an LED panel must be fitted with a Brompton Tessera R2 receiver card and needs to be measured using Hydra - an advanced measurement system custom-designed for LED panels and exclusive to Brompton Technology.
“Dynamic Calibration is a flexible approach that uses the immense parallel computing power of the R2’s Dynamic Engine to process incoming video in an entirely new and innovative way,” says Deighton. “Before making any decisions, the Dynamic Engine gathers a vast array of data, including the incoming video pixels, the video signal’s metadata, Dynamic Calibration metadata, the precise capabilities of each individual LED and the user’s preferences for how the image should be displayed.”
All of this extra information is processed in real-time, with no added latency, to intelligently determine the best possible way to drive each LED. Areas of the image where peak brightness is the most important visual aspect will make full use of the LEDs’ peak brightness. Areas requiring extreme saturation will make full use of the LEDs’ maximum colour gamut. But all this is achieved without needlessly sacrificing uniformity across the rest of the image.
“Dynamic Calibration is not just for brand new LED panels,” Deighton concludes. “It also allows existing panels using the Tessera R2 card to be given a new lease of life and it is supported by all Tessera processors as a free software upgrade.”
(Jim Evans)

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