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Dolby Laboratories has had a long history of developing technologies that deliver more compelling audio experiences for consumers. In the early 2000s, Dolby made a business decision to explore how to improve consumer entertainment experiences in the imaging domain. It was also around this time that researchers had been looking at high dynamic range (HDR) for image capture and manipulation. Dolby created a 20,000 Nits DCI projector and used it as a backlight in front of a 24 inch LCD panel resulting in a 20k nits display. This was used to conduct visual experiments with reference imagery with shadow details and specular highlights. Users were brought in and they could control where they wanted the specular and shadow details to lie. The company also designed the Perceptual Quantizer—electro optical transfer function (PQ–EOTF). Some advancements in these technologies included HDR10, HDR10þ, and Hybrid Log–Gamma (HLG)
