True White Point for Television Screens Across Different Viewing Conditions

Choi, Kee‐Hyun; Kim, Taesu; Chang, Jeonghwan; Suk, Hyeon‐Jeong

doi:10.1109/tce.2018.2867828

Cited by 9 publications

(7 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For televisions (5), it was found that the most preferred white point is around 7346K. Often in these experiments, it was found that the preferred white point color temperature and the ambient illuminant color temperature were not similar or close indicating partial adaptation to either display white or ambient illumination.…”

Section: Introductionmentioning

confidence: 79%

“…Due to this varied range of ambient colour temperatures the colour appearance of the stimulus on the HMI changes and this change is most evident in the case of the white point. There is enough reference to literature where the preferred white points for various display technologies have been studied (5,17). Generally, it was found out that D65 is not the preferred white point for the entire range of ambient illumination correlated colour temperatures possible.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

26‐4: Late‐News Paper: Preferred White Point for a System of Mixed Technology Displays Cockpit

Biswas,

Dumortier,

Jost

et al. 2023

Symp Digest of Tech Papers

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 79%

Section: Methodsmentioning

confidence: 99%

26‐4: Late‐News Paper: Preferred White Point for a System of Mixed Technology Displays Cockpit

Biswas,

Dumortier,

Jost

et al. 2023

Symp Digest of Tech Papers

View full text Add to dashboard Cite

“…This white backlight spectrum, plotted in Figure 5b, was tuned to produce 1931 CIE coordinates at (0.3146, 0.3218) with a correlated color temperature of 6452 K, which closely matches the white point of a D65 standard illuminant used to analyze modern televisions. 54 Similar to the color rendering index for general illumination, the color rendering capabilities of a display backlight can be quantified using the television lighting consistency index (TLCI-2012) where a score of 100 indicates perfect color rendering. The TLCI-2012 score of the model backlight when compared against a standard D65 standard illuminant is 53 and is similar to the Apple iPad© which has a score of 60, indicating that our violet-LED driven device has comparable color rendering capabilities to a commercial display.…”

Section: Narrowing the Emission Peak: Site Selective Excitation And P...mentioning

confidence: 99%

Enabling Wide-Gamut Human-Centric Display Lighting

Hariyani

Xing

Amachraa

et al. 2022

Preprint

View full text Add to dashboard Cite

Monitors, televisions, and smartphones have been revolutionized by the invention of InGaN-based LED backlighting. Yet, regular exposure to the bright blue light emitted by these screens can lead to mood disorders and insomnia. Switching to a "human-centric" display that uses a violet-emitting LED chip and a trichromatic phosphor blend is one materials chemistry solution for this problem. The challenge is finding a blue-emitting phosphor with a sufficiently small Stokes’ shift to down-convert the violet LED light. This study reports a new oxynitride phosphor that meets this need. K3AlP3O9N:Eu2+ exhibits a narrow (45 nm, 2206 cm-1), thermally robust, and efficient blue photoluminescence upon violet excitation. Computational modeling and photoluminescence spectroscopy revealed that a rare combination of preferential excitation and site-selective quenching produce the desired optical properties. Combining K3AlP3O9N:Eu2+ with red- and green-emitting phosphors and a violet LED covers 10% more of the color gamut than a commercial tablet while simultaneously mitigating blue light exposure en route to next-generation, human-centric displays.

show abstract

“…They found that the current white point settings of television are too bluish. In addition, the perception of the white point was significantly affected by the image content and ambient lighting conditions [3]. Wei adopted a self-luminous display under different adapting conditions with the variance of adapting luminance and CCT to evaluate its whiteness.…”

Section: Introductionmentioning

confidence: 99%

White Appearance for Optimal Text-Background Lightness Combination Document Layout on a Tablet Display under Normal Light Levels

Hsin-Pou¹,

Li²,

Wei³

et al. 2021

cic

View full text Add to dashboard Cite

In the study, two psychophysical experiments are carried out to understand the visual comfort and white appearance of a tablet display. Twenty-four observers assess the visual comfort of document layouts, and eleven observers rate the whiteness percentage of the stimulus under normal light levels with a CCT of 6500 K. The result of the experiment for visual comfort indicates that a combination of black text with a light grey background presents the better visual comfort. On the other hand, the finding of the white appearance experiment shows that the observers rate the stimulus with CCT of 6515 K and a Duv of 0 as the whitest.

show abstract

True White Point for Television Screens Across Different Viewing Conditions

Cited by 9 publications

References 23 publications

26‐4: Late‐News Paper: Preferred White Point for a System of Mixed Technology Displays Cockpit

26‐4: Late‐News Paper: Preferred White Point for a System of Mixed Technology Displays Cockpit

Enabling Wide-Gamut Human-Centric Display Lighting

White Appearance for Optimal Text-Background Lightness Combination Document Layout on a Tablet Display under Normal Light Levels

Contact Info

Product

Resources

About