Results 21 to 30 of about 232,970 (294)

ColorLab: Visualizing Color from Absorbance Spectra

open access: yes, 2022
We present here the first public release of ColorLab, a Python-based program that can convert absorbance spectra into color images. It was designed for use with organic photovoltaic (OPV) materials and blends, which represent a myriad of colors based on ...
Bryon W., Larson   +4 more
core   +1 more source

Full-Color Realization of Micro-LED Displays

open access: yesNanomaterials, 2020
Emerging technologies, such as smart wearable devices, augmented reality (AR)/virtual reality (VR) displays, and naked-eye 3D projection, have gradually entered our lives, accompanied by an urgent market demand for high-end display technologies.
Yifan Wu   +4 more
doaj   +1 more source

Use of Recycling-Reflection Color-Purity Enhancement Film to Improve Color Purity of Full-Color Micro-LEDs

open access: yesNanoscale Research Letters, 2022
A common full-color method involves combining micro-light-emitting diodes (LEDs) chips with color conversion materials such as quantum dots (QDs) to achieve full color.
Zhi Ting Ye, Jun-Yi Wu
doaj   +1 more source

Structural Optimization of Vertically-Stacked White LEDs with a Yellow Phosphor Plate and a Red Quantum-Dot Film

open access: yesNanomaterials, 2022
A remote-type white light-emitting diode (LED) consisting of a red quantum-dot (QD) film and a yellow phosphor plate was studied by both experiment and optical simulation.
Seung Chan Hong, Jae-Hyeon Ko
doaj   +1 more source

An FPGA-Based Simple RGB-HSI Space Conversion Algorithm for Hardware Image Processing

open access: yesIEEE Access, 2020
In this paper, a new, low-complexity, easy-to-implement hardware method for color space conversion between the red-green-blue (RGB) and the hue-saturation-intensity (HSI) color spaces called the simple RGB-HSI space conversion (S-SC) algorithm is ...
Shuaiqing Zhi   +3 more
doaj   +1 more source

Design and Realization of Animation Composition and Tone Space Conversion Algorithm

open access: yesComplexity, 2021
In recent years, with the development of society and the rapid development of the animation industry, people are paying more and more attention to and requirements for animation production.
Liang Jing
doaj   +1 more source

Illumination Estimation Based Color to Grayscale Conversion Algorithms [PDF]

open access: yes, 2014
In this paper, a new adaptive approach, namelythe illumination estimation approach is introduced into the colorto grayscale conversion technique. In this approach, someassumptions will be made to calculate the weight contribution ofred, green, and blue ...
Lim, W. H. (Wei), Isa, N. A. (Nor)
core   +3 more sources

Intense up-conversion luminescence from Dy3+-doped multi-component telluroborate glass matrix: Role of CuO nanoparticles embedment

open access: yesHeliyon, 2023
This paper reports an intense up-conversion luminescence from Dy3+-doped strontium-telluro-alumino-magnesium-borate glasses for the first time. The samples were made via the melt-quenching method and characterized to determine the influence of various ...
I. Abdullahi   +3 more
doaj   +1 more source

NEW PHENOMENON OF COLOR CONVERSION. [PDF]

open access: yesJournal of the American Medical Association, 1906
It is several years since I first observed and instituted some experiments with an interesting color conversion phenomenon which, so far as I could learn, had previously been unobserved. After some thought and examination regarding the phenomenon I communicated it to Dr. George T.
openaire   +2 more sources

Tripling the Optical Efficiency of Color-Converted Micro-LED Displays with Funnel-Tube Array

open access: yesCrystals, 2019
Color-converted micro-LED displays consist of a mono-color micro-LED array and color conversion materials to achieve full color, while relieving the burden of epitaxial growth of three-color micro-LEDs. However, it usually suffers from low efficiency and
Fangwang Gou   +5 more
doaj   +1 more source

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