Mapping the Broad CMY Subtractive Primary Color Gamut Using a Dual-Active Electrochromic Device

2014 ◽  
Vol 6 (9) ◽  
pp. 6623-6630 ◽  
Author(s):  
Rayford H. Bulloch ◽  
Justin A. Kerszulis ◽  
Aubrey L. Dyer ◽  
John R. Reynolds
Keyword(s):  
Electrochromic Device ◽  
Color Gamut ◽  
Primary Color

25.1: Invited Paper: Development of Wide-Color-Gamut Mobile Displays with Four-Primary-Color LCDs

2006 ◽  
Vol 37 (1) ◽  
pp. 1221 ◽  
Author(s):  
E. Chino ◽  
K. Tajiri ◽  
H. Kawakami ◽  
H. Ohira ◽  
K. Kamijo ◽  
...  
Keyword(s):  
Color Gamut ◽  
Primary Color ◽  
Wide Color Gamut

scholarly journals Design and Simulation of Low Circadian Action Micro-LED Displays with Four Primary Colors

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 383
Author(s):  
Ziqian He ◽  
Guanjun Tan ◽  
Yi-Fen Lan ◽  
Shin-Tson Wu
Keyword(s):  
Circadian Rhythm ◽  
Light Emitting Diode ◽  
Liquid Crystal Displays ◽  
Real Image ◽  
Color Gamut ◽  
Daily Lives ◽  
Light Emitting ◽  
Primary Color ◽  
Long Time ◽  
Circadian Effect

Nowadays, displays are ubiquitous in our daily lives. Long-time exposure to a display’s unnatural light could influence the user’s circadian rhythm, especially at night. Here, we propose a four-color micro-light-emitting diode (LED) display to achieve low circadian action for nighttime uses. Specifically, we evaluate the RGBW-type (red, green, blue, and white) and RYGB-type (red, yellow, green, and blue) micro-LED displays in terms of circadian effect and color gamut coverage. With the addition of an extra white subpixel, it was found that the circadian effect at night can be reduced dramatically, but the color gamut remains unchanged. However, with an additional yellow subpixel, both the circadian effect and color gamut were found to improve. Finally, we simulated the circadian illuminance of real image contents for different displays. In comparison with existing liquid crystal displays, organic LED displays, and RGB (red, green, blue) micro-LED displays, the proposed four-primary-color micro-LED displays can significantly reduce the circadian effect at night.

62.1: Five-Primary-Color 60-Inch LCD with Novel Wide Color Gamut and Wide Viewing Angle

2009 ◽  
Vol 40 (1) ◽  
pp. 927 ◽  
Author(s):  
Shun Ueki ◽  
Kozo Nakamura ◽  
Yuhichi Yoshida ◽  
Tomohiko Mori ◽  
Kazunari Tomizawa ◽  
...  
Keyword(s):  
Viewing Angle ◽  
Color Gamut ◽  
Primary Color ◽  
Wide Viewing Angle ◽  
Wide Color Gamut

Three primary color (cyan/magenta/yellow) switchable electrochromic devices based on PEDOT:PSS and ‘electrobase/electroacid’ theory

2019 ◽  
Vol 43 (22) ◽  
pp. 8410-8413
Author(s):  
Guojian Yang ◽  
Baige Yang ◽  
Huiqi Zhang ◽  
Xiaojun Wang ◽  
Chang Gu ◽  
...  
Keyword(s):  
Electrochromic Device ◽  
Electrochromic Devices ◽  
Primary Color

A multicolor electrochromic device (ECD), which can switch among three primary colors cyan (C), magenta (M) and yellow (Y), was fabricated successfully.

Preparation, Electronic Structure and Optical Properties of the Electrochromic Thin Films

2004 ◽  
Vol 9 (4) ◽  
pp. 363-372 ◽  
Author(s):  
T. Lukaszewicz ◽  
A. Ravinski ◽  
I. Makoed
Keyword(s):  
Electrochromic Device ◽  
Orbital Method ◽  
Optical Parameters ◽  
Full Potential ◽  
Electrochromic Devices ◽  
Energy Bands ◽  
Conducting Film ◽  
Recombination Probability ◽  
Transparent Conducting ◽  
Smoluchowski Equations

A new multilayer electrochromic device has been constructed according to the following pattern: glass1/ITO/WO3/gel electrolyte/BP/ITO/glass2, where ITO is a transparent conducting film made of indium and tin oxide and with the surface resistance equal 8–10 Ω/cm2 . The electrochromic devices obtained in the research are characterized by great (considerable) transmittance variation between coloration and bleaching state (25–40% at applied voltage of 1.5 to 3 V), and also high coloration efficiency (above 100 cm2 /C). Selfconsistent energy bands, dielectric permittivity and optical parameters are calculated using a full-potential linear muffin-tin orbital method. The numerical solution of the Debye-Smoluchowski equations is developed for simulating recombination probability of Li+ ions in amorphous electrolyte.

A testing paradigm for quantifying ICC profilers

2019 ◽  
Vol 2019 (1) ◽  
pp. 80-85
Author(s):  
Pooshpanjan Roy Biswas ◽  
Alessandro Beltrami ◽  
Joan Saez Gomez
Keyword(s):  
Digital Camera ◽  
Visual Assessment ◽  
Just Noticeable Difference ◽  
Color Management ◽  
Color Gamut ◽  
Gamut Mapping ◽  
Digital File ◽  
Mapping Process ◽  
Testing Paradigm

To reproduce colors in one system which differs from another system in terms of the color gamut, it is necessary to use a color gamut mapping process. This color gamut mapping is a method to translate a specific color from a medium (screen, digital camera, scanner, digital file, etc) into another system having a difference in gamut volume. There are different rendering intent options defined by the International Color Consortium [5] to use the different reproduction goals of the user [19]. Any rendering intent used to reproduce colors, includes profile engine decisions to do it, i.e. looking for color accuracy, vivid colors or pleasing reproduction of images. Using the same decisions on different profile engines, the final visual output can look different (more than one Just Noticeable Difference[16]) depending on the profile engine used and the color algorithms that they implement. Profile performance substantially depends on the profiler engine used to create them. Different profilers provide the user with varying levels of liberty to design a profile for their color management needs and preference. The motivation of this study is to rank the performance of various market leading profiler engines on the basis of different metrics designed specifically to report the performance of particular aspects of these profiles. The study helped us take valuable decisions regarding profile performance without any visual assessment to decide on the best profiler engine.

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