Conferences related to Light emitting diodes

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2019 IEEE 69th Electronic Components and Technology Conference (ECTC)

premier components, packaging and technology conference


2013 IEEE 10th International Conference on Power Electronics and Drive Systems (PEDS 2013)

Power conversion and motor drives in the green energy era.


AFRICON 2013

IEEE AFRICON, the top-event of IEEE in Africa, is a forum for professionals, academia and industry to exchange ideas, present their newest research findings and to network.

  • AFRICON 2011

    IEEE AFRICON, the top-event of IEEE in Africa, is a forum for professionals, academia and industry to exchange ideas, present their newest research findings and to network. IEEE AFRICON presents a forum for mainly Electrical, Electronic & IT research with related Mechanical and Civil activities in Africa.

  • AFRICON 2009

    After the recent successful AFRICON Conferences in Botswana and Namibia, the 9th IEEE AFRICON returns in 2009 to where it was first held, back in 1983: Nairobi, Kenya. AFRICON is a forum for professionals, academia and industry to exchange ideas, present their newest research findings and to network.


ESSDERC 2013 - 43rd European Solid State Device Research Conference

The ESSDERC conference provides an annual European forum for the presentation and discussion of recent advances in solid-state devices and process technology. The conference is organized jointly with ESSCIRC (18606), which covers advances in circuit technology.


IEEE SOUTHEASTCON 2013

Region 3 Meeting, Technical papers, student competitions.

  • SOUTHEASTCON 2012

    The annual IEEE SoutheastCon conferences promote all aspects of the theories and applications of the engineering disciplines. Sponsored by the IEEE Region 03, this event attracts researchers, professionals, and students from the Southeast region of the U.S and beyond. SoutheastCon 2012 will be held in Orlando, Florida.

  • SOUTHEASTCON 2011

    IEEE SoutheastCon2011 is the annual IEEE Region 3 technical, professional, and student conference, invites conference refereed and non-refereed technical paper presentations and tutorials that advance the work and careers of conference attendees in the areas of interest for the conference.

  • SOUTHEASTCON 2010

    SoutheastCon 2010 is the Region 3 event which includes a student conference, a technical conference, and the Region 3 business meeting.

  • SOUTHEASTCON 2009

    It is the annual IEEE Region 3 Technical, Professional, and Student Conference. As the premier conference for the IEEE Region 3, it brings together electrical, computer and other engineering and science professionals, faculty and students to share the latest information through technical sessions, tutorials and exhibits. The conference schedule includes: a technical program with seminars, tutorials, and workshops; exhibits; a student program with student competitions; and IEEE regional meetings.

  • SOUTHEASTCON 2008

    SoutheastCon is the Southeastern USA Region of the IEEE's premier conference. It contains three main sections: a technical program, student competitions and regional meetings. SouthEastCon features technical papers, tutorials and exhibits.

  • SOUTHEASTCON 2007

  • SOUTHEASTCON 2006

  • SOUTHEASTCON 2005


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Periodicals related to Light emitting diodes

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Circuits and Systems II: Express Briefs, IEEE Transactions on

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.


Communications Letters, IEEE

Covers topics in the scope of IEEE Transactions on Communications but in the form of very brief publication (maximum of 6column lengths, including all diagrams and tables.)


Communications Surveys & Tutorials, IEEE

Each tutorial reviews currents communications topics in network management and computer and wireless communications. Available tutorials, which are 2.5 to 5 hours in length contains the original visuals and voice-over by the presenter. IEEE Communications Surveys & Tutorials features two distinct types of articles: original articles and reprints. The original articles are exclusively written for IEEE Communications Surveys & Tutorials ...


Communications, IEEE Transactions on

Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


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Most published Xplore authors for Light emitting diodes

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Xplore Articles related to Light emitting diodes

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Enhancement of Luminous Efficiency and Uniformity of CCT for Quantum Dot-Converted LEDs by Incorporating With ZnO Nanoparticles

[{u'author_order': 1, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Yong Tang'}, {u'author_order': 2, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Zhi Li'}, {u'author_order': 3, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Zong-Tao Li'}, {u'author_order': 4, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Jia-Sheng Li'}, {u'author_order': 5, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Shu-Dong Yu'}, {u'author_order': 6, u'affiliation': u'Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangzhou, China', u'full_name': u'Long-Shi Rao'}] IEEE Transactions on Electron Devices, 2018

ZnO nanoparticles were incorporated into quantum dot (QD)-silicone encapsulation materials of the light-emitting diodes (LEDs) to exploit their strong scattering effect, which were proved by the ZnO-only film experiment. The novel packaging scheme led to a decrease in the radiation flux because of the conversion-energy loss of QDs and backscattering of ZnO nanoparticles. Under the similar color coordinate, the luminous ...


Model of intra and extracavity photodetection for planar resonant cavity light emitting diodes

[{u'author_order': 1, u'affiliation': u'Inst. of Technol., Wright-Patterson AFB, OH, USA', u'full_name': u'J. A. Lott'}, {u'author_order': 2, u'full_name': u'J. Noble'}] Compound Semiconductors 1997. Proceedings of the IEEE Twenty-Fourth International Symposium on Compound Semiconductors, None

A classical model of spontaneous emission in resonant cavity light emitting diodes is developed. The model is based on a plane wave expansion of a randomly distributed ensemble of noninteracting optical dipole emitter pairs placed within a planar microcavity. The model accounts for losses due to leaky guided modes and intracavity absorption. Given an arbitrary device structure, the model predicts ...


Design and Radiation Hardness of Next Generation Solar UV Radiometers

[{u'author_order': 1, u'affiliation': u'R. Obs. of Belgium (ROB), Brussels, Belgium', u'full_name': u'Samuel Gissot'}, {u'author_order': 2, u'affiliation': u'R. Obs. of Belgium (ROB), Brussels, Belgium', u'full_name': u'Ali BenMoussa'}, {u'author_order': 3, u'affiliation': u'R. Obs. of Belgium (ROB), Brussels, Belgium', u'full_name': u'Boris Giordanengo'}, {u'author_order': 4, u'affiliation': u"Inst. d'Electron., de Microelectron. et de Nanotechnol. (IEMN), Villeneuve d'Ascq, France", u'full_name': u'Ali Soltani'}, {u'author_order': 5, u'affiliation': u'Dept. of Environ. & Energy, Tohoku Inst. of Technol., Sendai, Japan', u'full_name': u'Terubumi Saito'}, {u'author_order': 6, u'affiliation': u'Max Planck Inst. for Solar Syst. Res., Gottingen, Germany', u'full_name': u'Udo Schuhle'}, {u'author_order': 7, u'affiliation': u'Phys.-Tech. Bundesanstalt (PTB), Berlin, Germany', u'full_name': u'Udo Kroth'}, {u'author_order': 8, u'affiliation': u'Phys.-Tech. Bundesanstalt (PTB), Berlin, Germany', u'full_name': u'Alexander Gottwald'}] 2014 IEEE Radiation Effects Data Workshop (REDW), None

For next space-based ultraviolet (UV) solar radiometers, we propose a design based on subsystem components that are selected according to lessons learned from previous flying missions and ground irradiation campaigns. UV interference filters inherited from space-based solar missions show strong degradation caused by structural changes that lead to an important decrease of visible light rejection. Wide bandgap semiconductors (WBGS) are ...


Junction-current-confinement planar light-emitting diodes and optical coupling into large-core diameter fibers using lenses

[{u'author_order': 1, u'affiliation': u'Motorola, Inc., Phoenix, AZ, USA', u'full_name': u'J. S. Escher'}, {u'author_order': 2, u'full_name': u'H. M. Berg'}, {u'author_order': 3, u'full_name': u'G. L. Lewis'}, {u'author_order': 4, u'full_name': u'C. D. Moyer'}, {u'author_order': 5, u'full_name': u'T. U. Robertson'}, {u'author_order': 6, u'full_name': u'H. A. Wey'}] IEEE Transactions on Electron Devices, 1982

High-radiance AlGaAs-GaAs double-heterostructure light-emitting diodes utilizing junction current confinement are described. Diode resistance and junction ideality factor are investigated as a function of emission diameters from 10 to 75 µm. Near-field intensity profiles indicate tight current confinement over the full range of emission diameters. Rise-time measurements are consistent with a simple carrier lifetime model for >25-µm emission diameters. An effective ...


Flexible Displays

[{u'author_order': 1, u'affiliation': u'School of EECS, Seoul National University, Seoul 151-744, Korea', u'full_name': u'Yongtaek Hong'}] LEOS 2006 - 19th Annual Meeting of the IEEE Lasers and Electro-Optics Society, None

In this paper, key technology options for flexible active-matrix (AM) displays are reviewed by addressing advantages and challenges for each technology. Before flexible or rollable displays appear in the market, it is expected that ultra-thin, very light, unbreakable, high quality, full-color flat panel displays will be available in the market in the near future by utilizing the technologies that have ...


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Educational Resources on Light emitting diodes

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eLearning

No eLearning Articles are currently tagged "Light emitting diodes"

IEEE-USA E-Books

  • OLED Materials

    OLED performance is largely dependent upon OLED materials. This chapter describes the classification of OLED materials and typical OLED materials.OLED materials are divided into two types ¿¿¿ vacuum evaporation type and solution type ¿¿¿ from a process point of view. Vacuum evaporation materials are usually small molecular materials, while solution type materials contain polymers, dendrimers, and small molecular materials. In addition, materials are also divided into fluorescent materials, phosphorescent materials, and thermally activated delayed fluorescent (TADF) materials in terms of emission mechanisms. From the function point of view, OLED materials can be classified as hole injection material, hole transport material, emission material, host material in emissive layer, electron transport material, electron injection material, charge blocking material, etc.Anode and cathode materials are also important, so this chapter also describes anode and cathode materials.In addition, this chapter describes molecular orientations of organic materials because this also influences OLED characteristics.

  • Digital Design Building Blocks and More Advanced Combinational Circuits

    This chapter contains sections titled: * Combinational Circuits with More than One Output * Decoders and Encoders * Multiplexers and Demultiplexers (MUXes and DEMUXes) * Signed and Unsigned Binary Numbers * Arithmetic Circuits: Half-Adders (HA) and Full-Adders (FA) * Carry Look Ahead (CLA) or Fast Carry Generation * Some Short-Hand Notation for Large Logic Blocks * Summary * Further Reading * Problems 548

  • OLED Devices

    While the fundamental device structure of OLEDs is simple in a sense, there are various types of OLED devices, which can be classified into various categories. From the point of view of emitting directions, OLED devices are classified as bottom emission, top emission, and both¿¿¿side emission (transparent). OLED devices are also classified into normal and inverted structures from the point of view of the stacking order of the electrodes.In addition, this chapter describes some useful technologies for practical OLED displays and lighting: white OLEDs, full¿¿¿color technologies, micro¿¿¿cavity structures, multi¿¿¿photon structures, and encapsulating technologies.

  • History of OLEDs

    Active research and development of OLEDs (organic light emitting diodes) started in 1987, when Tang and VanSlyke of Eastman Kodak showed that a bright luminance was obtained in an OLED device with two thin organic layers sandwiched between anode and cathode. Since their report, OLEDs have been an attractive field from scientific and practical points of view because OLEDs have great potentials in practical applications such as displays and lighting.This chapter describes the history of the OLED.

  • Signal Processing and Optimization

    This chapter addresses several signal processing and optimization issues for visible light communications (VLCs). An electrical and optical power allocation scheme is introduced to maximize the multiuser sum‐rate in consideration of the luminance, chromaticity, amplitude, and bit error rate constraints for multi‐chip‐based multi‐input single‐output VLC systems. Compared to the phosphor‐converted LEDs, multichip LEDs have higher modulation bandwidth. Since each chip of the multi‐chip LEDs can be modulated independently, parallel communication channels are viable for information transmission. Since the light intensity perceived by human eyes is determined by the average luminous flux, the average luminous flux instead of instantaneous luminous flux is optimized to improve the system performance. Besides, the optimization of the instantaneous luminous flux requires the knowledge of the DC bias for each signal at the receiver, which is impractical for implementation.

  • Visible Light Communications: Channel and Capacity

    This chapter introduces the channel and capacity of visible light communication (VLC), describing the characteristics of light emitting diode (LED). The basic structure of OLEDs is thin‐film organic semi‐conductors sandwiched between the anode and the cathode. The luminescence mechanism for OLEDs is di?erent from inorganic LEDs. In the recombination of electron‐hole pair, a high‐energy molecular state called singlet or triplet exciton is formed. The exciton would emit the light and its wavelength is related to the emitting layer material rather than the band gap. Since an LED's capacitance and conductance are frequency‐dependent, the polynomial model is not capable of describing the dynamics and memory effects of the LEDs accurately. LED lighting constraints are crucial to modulation and signal processing for VLC systems, which include dimming control, chromaticity control, and ?icker‐free communication. The driver circuit has a set of transistors that combine the dimming signal with the biased modulating signal and switch the LEDs.

  • Sequential Logic and State Machines

    This chapter contains sections titled: * Introduction * Latches and Flip-Flops (FF) * Timing Characteristics of Sequential Elements * Simple State Machines * Synchronous State Machines General Considerations * Summary * Further Reading * Problems

  • OLED Fabrication Process

    This chapter describes the fabrication processes of OLED devices. In general, OLEDs are fabricated by either a dry process or a wet process. The commonly used dry process is vacuum evaporation. Three types of vacuum evaporation techniques are reviewed. In wet processes, there are processes for coating without fine patterning and processes for making fine patterns.In addition to deposition techniques of each organic layer, RGB patterning technologies are important. These RGB patterning technologies are vacuum deposition using fine metal masks, wet processes such as ink¿¿¿jet, nozzle printing, relief printing, etc., and laser patterning process.

  • Practical Design of An LED Flashlight

    This chapter discusses design of a battery¿¿¿powered light¿¿¿emitting diode (LED) flashlight and begins the actual design by making a first pass at the number and type of LEDs required, and estimating the power they require. Then it chooses a control IC and also real components from a distributor's website, to make the design manufacturable. After estimating the power needed for the LED, the next task is to design its power supply and estimate its power dissipation to calculate the LED temperature. To do this, it is need to create a thermal model for the flashlight. The first link in the path from the LED to the ambient is from the LED junction to the solder point. The next link in the thermal path is the way the LED is mounted. For this design, metal core printed circuit board (MCPCB) is used.

  • Fundamentals of OLEDs

    This chapter describes fundamentals of OLEDs, including the principles, the fundamental device structures and some features of OLEDs.OLED is a carrier injection type electroluminescent device, having a similar emission mechanism to the inorganic light emitting diode (LED). The fundamental device structure of OLEDs is very simple, consisting of an anode, some organic layers and a cathode. The OLED has several attractive features such as low driving voltage, high efficiency, wide color variation, and fast response speed.



Standards related to Light emitting diodes

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Jobs related to Light emitting diodes

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