Back to Search
Start Over
Widely color-temperature low-luminosity-loss electrochromic-tuned white light-emitting diodes
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- Light-emitting diodes (LEDs) are efficient light sources extensively applied in people’s daily life nowadays, with profound effect on their psychological and physiological state subtly and deeply. The correlated color temperature (CCT) the eyes perceive is a key parameter, but the CCT tuning technology of LEDs remains in the development stage. In this study, an electrochromic (EC) material is employed in the tuning device, exhibiting a wide CCT tuning range from 3200 K to 6900 K, varying almost along the black-body locus. The driving voltage is lower than 2.4 V, with luminosity loss less than 16 %. Using the EC materials, the performance of CCT tuning technology is able to be further enhanced.
- Subjects :
- Materials science
FOS: Physical sciences
02 engineering and technology
Applied Physics (physics.app-ph)
Color temperature
01 natural sciences
Luminosity
law.invention
010309 optics
law
0103 physical sciences
White light
Electrical and Electronic Engineering
Diode
business.industry
Physics - Applied Physics
021001 nanoscience & nanotechnology
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Electrochromism
Optoelectronics
0210 nano-technology
business
Voltage
Light-emitting diode
Physics - Optics
Optics (physics.optics)
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....19724702cc24f38e9e07fa6bc8a9b7a5
- Full Text :
- https://doi.org/10.48550/arxiv.1908.07043