Results 21 to 30 of about 4,205,989 (306)
Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings
Energies, 2015 Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season.
Byung-Lip Ahn +5 more
doaj +1 more source
Surface plasmon polariton modification in top-emitting organic light-emitting diodes for enhanced light outcoupling [PDF]
, 2014 We report on the enhanced light outcoupling efficiency of monochrome top-emitting organic light-emitting diodes (OLEDs). These OLEDs incorporate a hole transport layer (HTL) material with a substantially lower refractive index (∼ 1:5) than the emitter ...
Hofmann, S. +14 more
core +1 more source
Nature Communications, 2023 Nanoscale circularly polarized light sources are an important building block for future integrated photonics. Here the authors demonstrate circularly polarized light emission from a thin organic single crystal light-emitting diode.
Jichao Jia +7 more
doaj +1 more source
Nanomaterials, 2023 We have studied high light out-coupling efficiency top-emitting organic light-emitting diodes (TOLEDs) under the guidance of the finite-difference time-domain (FDTD) simulation. TOLED achieves an extraordinarily high light extraction efficiency at 468 nm,
Saihu Pan, Suhao Hu, Bin Wei
doaj +1 more source
Light-emitting diode stimulates radiodermatitis recovery [PDF]
Acta Cirúrgica Brasileira, 2021 Purpose To evaluate the effect of light-emitting diode (LED) in an experimental model of radiodermatitis. Methods Ten male Wistar rats weighing 200–250 g were analyzed.
Cristina Pires Camargo +7 more
doaj +1 more source
Journal of Information Display, 2022 The remarkable progress of virtual reality, augmented reality, quantum dot light-emitting diode, and organic light-emitting diode as next-generation displays has overcome the leadership of the liquid crystal display during the last two years.
Ho Jin Jang +4 more
doaj +1 more source
Energy Reports, 2021 Light-fidelity (Li-Fi) communication systems have gained increased concerns as new and alternative paradigm for wireless communications. Through the increased applications of light emitting diode (LED) lamps for lighting in indoor and outdoor ...
Anwaar M. Damerdash +4 more
doaj +1 more source
Thin-film photonic crystal LEDs with enhanced directionality [PDF]
, 2009 The use of photonic crystals for light extraction from light-emitting diodes (LEDs) gives the possibility to shape the farfield emission pattern. This is of particular interest for étendue-limited LED applications that require a more directional ...
Bergenek, Krister +8 more
core +1 more source
Advances in Mechanical Engineering, 2015 In this study, a compact 100-W input power light-emitting diode array vapor chamber–based plate has been fabricated to investigate the thermal performance.
Ping Zhang +5 more
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Improving Mini-LED Pattern Quality by Using Distributed Bragg Reflector and Digital Twin Technology
Crystals, 2022 Fine-pitch backlight technology is rapidly evolving along with display technology, and chips are increasingly designed for direct integration with modules.
Shu-Hsiu Chang +5 more
doaj +1 more source