Results 21 to 30 of about 504,167 (178)
Micro-LED Based Double-Sided Emission Display and Cross-Medium Communication
IEEE Photonics Journal, 2022 GaN micro-LEDs have been spotlighted as promising candidates for high-speed optical communication, which may become important components in 6G communication blueprint.
Shijie Zhu +7 more
doaj +1 more source
A contact lens with built-in display: science fiction or not? [PDF]
, 2013 Recent progress in microsystems integration technology such as ultra-thin chip packaging, stretchable interconnections, thin-film batteries and organic photovoltaics makes it feasible to incorporate various electronic components and transducers in ...
Cuypers, Dieter +4 more
core +1 more source
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
Angular color shift of micro-LED displays
Optics Express, 2019 Sidewall emission of a micro-scale light emitting diode (micro-LED) improves the light extraction efficiency, but it causes mismatched angular distributions between AlGaInP-based red micro-LED and InGaN-based blue/green counterparts due to material difference. As a result, color shift of RGB micro-LED displays may become visually noticeable. To address
Fangwang Gou +6 more
openaire +2 more sources
Investigation of Electrical Properties and Reliability of GaN-Based Micro-LEDs
Nanomaterials, 2020 In this paper, we report high-performance Micro-LEDs on sapphire substrates, with pixel size scaling to 20 µm and an ultra-high current density of 9902 A/cm2.
Ke Zhang +3 more
doaj +1 more source
Multi-contrast imaging and digital refocusing on a mobile microscope with a domed LED array [PDF]
, 2015 We demonstrate the design and application of an add-on device for improving the diagnostic and research capabilities of CellScope--a low-cost, smartphone-based point-of-care microscope.
D'Ambrosio, Michael V. +9 more
core +2 more sources
Light: Science & Applications, 2023 A prototype of full-color active-matrix micro-light-emitting diode (micro-LED) micro-display with a pixel density of 391 pixel per inch (ppi) using InGaN/AlGaInP heterogeneous integration is demonstrated.
Longheng Qi +4 more
doaj +1 more source
Red and Green Quantum Dot Color Filter for Full-Color Micro-LED Arrays
Micromachines, 2022 This work demonstrated color-conversion layers of red and green quantum dots color filter for full-color display arrays. Ligands exchange using (3-glycidyloxypropyl) trimethoxysilane with epoxy functional groups to treat QDs in the liquid phase was ...
Bingxin Zhao +7 more
doaj +1 more source
Ambient contrast ratio of quantum-dot color-converted micro-LED displays
Results in Physics, 2023 Pixelated quantum dot color conversion layer (PQDCCL) is the most promising approach to realize a full-color micro-LED display. However, the QD excitation by ambient light has non-negligible impact on the ambient contrast ratio (ACR) and the display ...
Liwen Deng +10 more
doaj +1 more source
Development of a 3D printer using scanning projection stereolithography [PDF]
, 2015 We have developed a system for the rapid fabrication of low cost 3D devices and systems in the laboratory with micro-scale features yet cm-scale objects.
Cooper, Geoffrey J.T. +5 more
core +1 more source