Design of Primaries for a Wide-Gamut Television Colorimetry

Masaoka, Kenichiro; Sugawara, Masayuki; Nakasu, Eisuke

doi:10.1109/tbc.2010.2074450

Cited by 88 publications

(53 citation statements)

References 10 publications

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“…This system covers 92% of DCI‐P3 standard and 67% of Rec. 2020 standard . Alternative color converters such as CdSe red/green QDs with FWHM approximately 25‐30 nm can also be used to obtain wider color gamut .…”

Section: Simulated Results and Discussionmentioning

confidence: 99%

High performance color‐converted micro‐LED displays

et al. 2019

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A full‐color micro‐LED display can be achieved by red, green, and blue (RGB) chips or by a blue/ultraviolet (UV) micro‐LED array to pump downconverters. The latter helps relieve the burden of epitaxial growth of tri‐color micro‐LED chips. However, such a color‐converted micro‐LED system usually suffers from color crosstalk and low efficiency due to limited optical density of color converters. With funnel‐tube array and reflective coating on its inner surface, the crosstalk is eliminated, and the optical efficiency can be improved by more than two times. In addition, the ambient contrast ratio is also improved because of higher light intensity. The color gamut of this device is approximately 92% of DCI‐P3 standard.

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Section: Simulated Results and Discussionmentioning

confidence: 99%

High performance color‐converted micro‐LED displays

et al. 2019

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“…2020 blue primary was designed to have the same CIELAB metric hue as the Rec. 709 blue primary . Figure shows the Rec.…”

Section: Methodsmentioning

confidence: 98%

Heuristic approach to selecting a color appearance model for hue‐preserved wide‐color gamut mapping

Masaoka¹,

Yamashita²,

Sugawara³

2015

J Soc Info Display

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With the advent of wide‐gamut system colorimetry for ultra‐high definition television, the development of a gamut mapping algorithm for wide to standard gamuts is greatly needed. Most gamut mapping techniques have been developed to retain the perceived hues of the source as predicted by a color appearance model. However, some color appearance models erroneously predict the saturated colors, generating a serious hue discontinuity in wide‐color gamut mapping onto the Rec. 709 gamut boundary. This paper presents a heuristic approach to determining whether a color appearance model may create such artifacts when used in hue‐preserved gamut mapping algorithms.

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“…It is true that the wider the color gamut, the better the color reproduction performance of display. Therefore, in comparative studies of color gamut in the literature, percentage of the coverage of real objects' gamut in the chromaticity diagram is often used as an index of display system performance . However, perceived naturalness and/or observers' preference of color images in display are not necessarily the same as the color reproduction performance of the display.…”

Section: Introductionmentioning

confidence: 99%

KANSEI evaluation of color images presented in color gamuts with different blue primaries

Ayama

Fuseda

Hamano

et al. 2016

Jnl Soc Info Display

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-The effect of blue primary color on image quality was studied. We used the KANSEI evaluation method, and for experiments, we used Semantic Differential method. First, four different blue primaries of 430, 450, 470, and 480 nm with full brightness of L max equal 60 cd/m 2 were tested.The same experiment was performed for 450, 470, and 480 nm at L max of 170 cd/m 2 . The results for the four primaries show that 450-and 470-nm blue primaries are the best. Then 430 nm was next, and 480-nm blue primary shows the worst performance. In the tests of three primaries, the 470 nm shows the highest scores for bluish test images. Results are compared with color naming data in the entire chromaticity diagram.

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Design of Primaries for a Wide-Gamut Television Colorimetry

Cited by 88 publications

References 10 publications

High performance color‐converted micro‐LED displays

High performance color‐converted micro‐LED displays

Heuristic approach to selecting a color appearance model for hue‐preserved wide‐color gamut mapping

KANSEI evaluation of color images presented in color gamuts with different blue primaries

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