75‐1: <i>Student Paper:</i> Brightness and Vividness of High Dynamic Range Displayed Imagery

Hellwig, Luke; Stolitzka, Dale; Yi, Yuan Fu; Fairchild, Mark D.

doi:10.1002/sdtp.15668

Cited by 5 publications

(7 citation statements)

References 19 publications

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“…In fact, program content could be improved if some colors exceeded DCI-P3 6 . Vividness in QMh space is a function of brightness (Q) and colorfulness (M) after applying the H-K effect extension 9 .…”

Section: Discussionmentioning

confidence: 99%

Brightness and vividness lead to better viewing for UHD, HDR programming

Stolitzka

2023

Ultra-High-Definition Imaging Systems VI

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Modern display appliances have increased picture quality by taking advantage of high-pixel resolution and High Dynamic Range (HDR) in new-age OLED-based products. This trend will become pervasive with the continued proliferation of underlying technologies. This paper helps point researchers to modeling those accounts for the increase in picture quality. The TV market has a growing number of HDR products, as listed by the popular consumer review website, RTINGS.com. They include many ultra-high definition (UHD), HDR televisions that exceed 1000 candela-per-meter-squared (cd/m2) peak luminance as reported by Babcock (2023). Also, the monitor and notebook HDR market is growing evident by the number of HDR display products certified by the VESA (Video Electronics Standards Association) DisplayHDR logo compliance program. Relying only on wattage to increase luminous intensity, however, is neither subtle nor cost effective. Sheer brightness in a typical ‘UHD/HDR’ television may be desirable but isn’t the only tool available to display makers. This talk reviews models that assess ‘UHD/HDR' displays for their clarity, brightness and most importantly their vividness. Quantum dot pixel-rendering technology has driven image vividness to new levels when matched with an OLED-emissive pixel (QD-OLED) according to supporting researched cited herein. Quantum dot advances that are in fact necessary for advancing the state-of-the-art in UHD imaging for televisions and computer monitors. This presentation will emphasize the importance of an augmented color appearance model for HDR technology that can reach beyond the DCI-P3 color space.

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Section: Discussionmentioning

confidence: 99%

Brightness and vividness lead to better viewing for UHD, HDR programming

Stolitzka

2023

Ultra-High-Definition Imaging Systems VI

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“…Berns's vividness dimension also better aligns with the change in color that real‐world objects experience, for instance, as one increases the concentration of colorant in a dye or increases the brightness on a display. Recent research confirms that the brightness of high dynamic range (HDR) displayed imagery perceived by observers is better predicted by a vividness metric than a traditional achromatic measure of display brightness 9 …”

Section: Brightness and Vividnessmentioning

confidence: 91%

“…Recent research confirms that the brightness of high dynamic range (HDR) displayed imagery perceived by observers is better predicted by a vividness metric than a traditional achromatic measure of display brightness. 9…”

Section: Figmentioning

confidence: 99%

“…Research shows that images appear brighter on QD OLED displays than white-boosted displays, in agreement with the predictions of XCR. 9 Thus, models of the Helmholtz-Kohlrausch effect represent a highly important tool for quantifying the perceptual performance of displays and informing consumers about the benefit of QDs and wide color gamuts. ID Fig.…”

Section: Experienced Color Rangementioning

confidence: 99%

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An Advanced Color Model for Evaluating New Display Technologies

Hellwig¹,

Stolitzka²

2023

Information Display

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“…This property is known as the Helmholtz-Kohlrausch effect and has been discussed previously for quantum dots. A revised color appearance model taking this effect into account was recently proposed by Hellwig et al [2]. This model uses vividness as a metric combining both colorfulness and brightness.…”

Section: Enhanced Brightness With Narrow Fwhmmentioning

confidence: 99%

55.2: High performance perovskite nanocrystals and photoresists for in‐pixel colour conversion

Angioni¹,

Baker²,

Hopkin³

et al. 2023

Symp Digest of Tech Papers

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In addition to brightness, high resolution and color quality, high‐end displays should also be energy efficient. This challenging combination can be achieved using in‐pixel color conversion schemes, where blue light from an inorganic LED is directly converted into red or green at the pixel level. Perovskite nanocrystals are ideal candidates for such architectures due to their excellent light absorption and emission properties. In this contribution, we show that the very narrow emission spectra of perovskites not only lead to extremely wide color gamut, but can also generate a substantial boost in brightness, and thus energy efficiency. We then present recent developments of green and red photoresists based on Helio's core materials, that are compatible with standard industrial processing conditions. These materials are suitable for most established and emergent display architectures, including µLED and QD‐OLED.

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75‐1: Student Paper: Brightness and Vividness of High Dynamic Range Displayed Imagery

Cited by 5 publications

References 19 publications

Brightness and vividness lead to better viewing for UHD, HDR programming

Brightness and vividness lead to better viewing for UHD, HDR programming

An Advanced Color Model for Evaluating New Display Technologies

55.2: High performance perovskite nanocrystals and photoresists for in‐pixel colour conversion

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