ASK-based spatial multiplexing RGB scheme using symbol-dependent self-interference for detection [PDF]
, 2017 We propose a vsible light communication scheme utilizing red, green and blue lightemitting diodes (LEDs) and three color-Tuned photodiodes. Amplitude shift keying modulation is considered, and its effect on light emission in terms of flickering, dimming,
Biagi, Mauro +5 more
core +1 more source
InGaN nano-ring structures for high-efficiency light emitting diodes [PDF]
, 2004 A technique based on the Fresnel diffraction effect for the fabrication of nano-scale site-controlled ring structures in InGaN/GaN multi-quantum well structures has been demonstrated.
Choi, H. W. +8 more
core +1 more source
Automated alignment in mask‐free photolithography enabled by micro‐LED arrays
Electronics Letters, 2021 We present an automated control system for micro scale positioning, based on single pixel imaging and fluorescence. By projecting a chequerboard array of CMOS controllable μ‐LEDs at a suitable wavelength, we are able to spatially locate, track and ...
M. Stonehouse +7 more
doaj +1 more source
High Precision Control System for Micro-LED Displays
Applied Sciences, 2023 This paper proposes a Field Programmable Gate Array (FPGA)-based control system to implement micro-light-emitting diode (micro-LED) real-time display.
Yufeng Chen +9 more
doaj +1 more source
Gb/s visible light communications with colloidal quantum dot color converters [PDF]
, 2017 This paper reports the utilization of colloidal semiconductor quantum dots as color converters for Gb/s visible light communications. We briefly review the design and properties of colloidal quantum dots and discuss them in the context of fast color ...
Dawson, Martin D. +8 more
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Optical boundaries for LED-based indoor positioning system [PDF]
, 2019 Overlap of footprints of light emitting diodes (LEDs) increases the positioning accuracy of wearable LED indoor positioning systems (IPS) but such an approach assumes that the footprint boundaries are defined.
Popoola, Olaoluwa Rotimi +3 more
core +4 more sources
Micro-LED Technology for Display Applications
, 2021 Light-emitting diodes (LEDs), which emit efficient and bright light ranging from infrared to ultraviolet, have been adopted in various fields to improve quality of life. In particular, micro-LEDs, which are III–V inorganic-based micro-miniaturized light sources, which can form clear and vivid displays for smart portable devices and can be used with ...
Dong-Seon Lee, Jang-Hwan Han
openaire +1 more source
AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]
, 2016 AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420 nm∼420 nm for visible free-space, underwater, and plastic optical fiber communication.
Czernecki, Robert +12 more
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Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes
Crystals, 2020 Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under
En-Lin Hsiang +5 more
doaj +1 more source
Microlens array on flip-chip LED patterned with an ultraviolet micro-pixelated emitter [PDF]
, 2011 A direct-write lithographic technique for the fabrication of micro-lens arrays with an ultraviolet (UV) micro-light-emitting diode (LED) array serving as an exposure source is reported.
Choi, HW, Lai, PT, Zhu, L
core +1 more source