Results 41 to 50 of about 323,922 (291)
GaN micro-light-emitting diode arrays with monolithically integrated sapphire microlenses [PDF]
, 2004 A microdisk light emitting diode (micro-LED) with a monolithically integrated microlens array was demonstrated. The capability of the lenses in concentrating light emitted from microdisk LEDs was also demonstrated.
Choi, HW +6 more
core +1 more source
Effect of selected luminescent layers on CCT, CRI, and response times [PDF]
, 2019 Phosphors have been used as wavelength converters in illumination for many years. When it is excited with blue light, the frequently used yttrium aluminium garnet doped with cerium (YAG:Ce) phosphor converts a part of blue light to a wideband yellow ...
Jargus, Jan +4 more
core +1 more source
A wearable phototherapy device utilizing micro-LEDs [PDF]
2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2019 A conformable device for wearable phototherapy applications is presented. The device consists of a 1 mm thick elastomeric membrane edge-lit by specially fabricated micro-sized LEDs. Nanoparticle based scattering films are utilized to extract light and a uniform emission of 15 μW/cm2 is reported over an area of 2 cm2.
Farrell, Francesca +6 more
openaire +3 more sources
Active-matrix GaN micro light-emitting diode display with unprecedented brightness [PDF]
, 2015 Displays based on microsized gallium nitride light-emitting diodes possess extraordinary brightness. It is demonstrated here both theoretically and experimentally that the layout of the n-contact in these devices is important for the best device ...
Dawson, Martin D. +12 more
core +1 more source
Color Quality Improvement of Micro LED Display Image by TMP LED Design
IEEE Access, 2018 In recent years, Micro LED technology has been popularly developed. How to improve the issue of color stability in Micro LED technology is an important and also a difficult research topic.
Hsiao-Wen Lee +2 more
doaj +1 more source
Fabrication, characterization and applications of flexible vertical InGaN micro-light emitting diode arrays [PDF]
, 2016 Flexible vertical InGaN micro-light emitting diode (micro-LED) arrays have been fabricated and characterized for potential applications in flexible micro-displays and visible light communication.
Chen, Zhizhong +7 more
core +1 more source
Discover Nano, 2023 In this study, we have demonstrated the potential of InGaN-based red micro-LEDs with single quantum well (SQW) structure for visible light communication applications.
Fu-He Hsiao +14 more
doaj +1 more source
Strain-Reduced Micro-LEDs Grown Directly Using Partitioned Growth [PDF]
Frontiers in Chemistry, 2021 Strain-reduced micro-LEDs in 50 μm × 50 μm, 100 μm × 100 μm, 200 μm × 200 μm, 500 μm × 500 μm, and 1,000 μm × 1,000 μm sizes were grown on a patterned c-plane sapphire substrate using partitioned growth with the metal-organic chemical-vapor deposition (MOCVD) technique.
Shunpeng Lu +10 more
openaire +6 more sources
Phosphorous Diffuser Diverged Blue Laser Diode for Indoor Lighting and Communication. [PDF]
, 2015 An advanced light-fidelity (Li-Fi) system based on the blue Gallium nitride (GaN) laser diode (LD) with a compact white-light phosphorous diffuser is demonstrated for fusing the indoor white-lighting and visible light communication (VLC). The phosphorous
Chen, Hsiang-Yu +10 more
core +1 more source
Optical excitation and detection of neuronal activity [PDF]
, 2017 Optogenetics has emerged as an exciting tool for manipulating neural activity, which in turn, can modulate behavior in live organisms. However, detecting the response to the optical stimulation requires electrophysiology with physical contact or ...
Gillette, Martha +8 more
core +2 more sources