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Visualizing Color Volume with Gamut Rings and Modeling the HDR Display

Jeff Yurek, Vice President of Marketing · Nanosys, and Dale Stolitzka, Sr. Principal Engineer · Samsung Display America Lab

Presentation Abstract

Visualizing Color Volume with Gamut Rings

Color volume has emerged as a critical metric for evaluating the real-world performance of modern displays, especially as HDR content and wide color gamuts become standard. Traditional gamut measurements—based on 2D chromaticity diagrams—fall short of capturing the full visual experience of color across varying luminance levels. In this talk, we’ll explore a new approach to measuring color volume using Gamut Rings, a methodology recently adopted by RTINGS.com in their Test Bench 2.0 framework. Gamut Rings provide a more intuitive and visually meaningful representation of a display’s color capabilities in SDR and, potentially, HDR environments. We’ll examine how this method delivers new insights into display performance and helps illuminate the advantages of Quantum Dot (QD) technologies. We’ll also discuss how Gamut Rings may help bridge the gap between engineering metrics and consumer-visible performance with demonstrations.

Spatial computing systems aim to seamlessly connect people in hybrid physical-digital spaces, offering experiences beyond the limits of our physical world. To this end, wearable displays are required to present perceptually realistic imagery indistinguishable from reality within visually and socially comfortable form factor. Holographic displays have the potential to achieve these goals elegantly by addressing practical challenges, including true 3D capabilities, vision correction, retinal resolution, small device form factors, low power consumption, as well as high brightness and color gamut. However, for decades, holographic displays has always been relegated to the status of future technology, due to several major challenges, including the lack of appropriate hardware architecture, poor image quality that never met the computer graphics standard, the fundamental tradeoff between algorithm runtime and achieved image quality, and the limited degrees of freedom to accurately depict 3D scenes. In this talk, I will talk about how artificial intelligence (AI) can drive a paradigm shift in holographic display design by overcoming existing obstacles. First, I will give a gentle introduction to holographic displays and then present an algorithmic framework for these displays that approximates real-world scenes using partially coherent engines, along with a real-time rendering method. I will then introduce an AI-driven algorithmic approach focused on modeling and learning light transport in arbitrary optical systems with differentiable wave optics, effectively bridging the gap between simulated and physical models. Following this, I will discuss validation methods for holographic display rendering algorithms to ensure they provide perceptually realistic experiences. I will show some practical holographic display architectures designed for augmented and virtual reality (AR/VR) applications, achieving unprecedented form factors.

Jeff Yurek – Vice President of Marketing · Nanosys

Jeff Yurek is Vice President of Marketing at Nanosys, the quantum dot materials company widely credited with bringing QD technology to millions of consumer displays. In this role, he has helped establish partnerships with major manufacturers including Samsung, Vizio, and Hisense.

A recognized authority on quantum dots and display technology trends, Jeff is a frequent speaker and writer on the future of displays. He also serves on several key industry committees, including the Society for Information Display (SID) and the International Committee for Display Metrology (ICDM).

Before shifting his focus to marketing, Jeff worked as a creative professional. Today, he continues to blend storytelling with technical insight to shape the narrative around cutting-edge display innovation.

Presentation Abstract

Modeling the HDR Display

As reported recently in the July/August issue of Information Display, “The Helmholtz-Kohlrausch is a perceptual phenomenon in which the perceived brightness of a color is influenced not only by its luminance—the amount of light it emits—but also by its saturation, or purity of color. In simpler terms, highly saturated colors tend to appear brighter to the human eye than less saturated ones, even if they have the exact same objective luminance measurement.” While metrology experiments report physical capabilities, the designers who will optimize HDR performance and user experience must understand the implications of this phenomenon that eludes our equipment. The H–K effect highlights the gap between objective light measurements and subjective human perception. Relying only on wattage that may increase luminous intensity; however, it is neither subtle nor cost effective as a means to increase brightness – a perceived quantity. Owing to the H–K phenomenon, modern display technologies, especially those with wider color gamuts, such as OLED and QD-OLED displays, enhance the perception of brightness and vividness without increasing the display’s overall luminance. We conclude by showing methods that quantify visual perception through color appearance models in 2D and 3D analyses. These tools quantify the H-Keffect and describe HDR display using volumetric uniform color space representations.
Spatial computing systems aim to seamlessly connect people in hybrid physical-digital spaces, offering experiences beyond the limits of our physical world. To this end, wearable displays are required to present perceptually realistic imagery indistinguishable from reality within visually and socially comfortable form factor. Holographic displays have the potential to achieve these goals elegantly by addressing practical challenges, including true 3D capabilities, vision correction, retinal resolution, small device form factors, low power consumption, as well as high brightness and color gamut. However, for decades, holographic displays has always been relegated to the status of future technology, due to several major challenges, including the lack of appropriate hardware architecture, poor image quality that never met the computer graphics standard, the fundamental tradeoff between algorithm runtime and achieved image quality, and the limited degrees of freedom to accurately depict 3D scenes. In this talk, I will talk about how artificial intelligence (AI) can drive a paradigm shift in holographic display design by overcoming existing obstacles. First, I will give a gentle introduction to holographic displays and then present an algorithmic framework for these displays that approximates real-world scenes using partially coherent engines, along with a real-time rendering method. I will then introduce an AI-driven algorithmic approach focused on modeling and learning light transport in arbitrary optical systems with differentiable wave optics, effectively bridging the gap between simulated and physical models. Following this, I will discuss validation methods for holographic display rendering algorithms to ensure they provide perceptually realistic experiences. I will show some practical holographic display architectures designed for augmented and virtual reality (AR/VR) applications, achieving unprecedented form factors.

Dale Stolitzka – Affiliation: Samsung Display America Lab, San Jose, CA

Dale Stolitzka is the Sr.Principal Engineer at the Samsung Display America Lab in San Jose, CA, who leads display standardization and oversees a Color Laboratory. Stolitzka advances the study and standardization of HDR, visual quality and high-speed video pipelines in mobile devices for OLED panels. He promotes advances of the display ecosystem through CIE, ISO/IEC, the MIPI Alliance (Display Working Group Chair), SID ICDM, and VESA. Before joining Samsung, he developed mixed-signal system designs at Analog Devices, National Semiconductor, Maxtor and Raytheon. He holds a bachelor’s degree in applied physics and a master’s degree in materials science both from Cornell University.