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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Hybrid inorganic/organic luminescent devices

[{u'author_order': 1, u'affiliation': u'Nanoelectron. Lab., Cincinnati Univ., OH, USA', u'authorUrl': u'https://ieeexplore.ieee.org/author/37270185000', u'full_name': u'A.J. Steckl', u'id': 37270185000}, {u'author_order': 2, u'affiliation': u'Nanoelectron. Lab., Cincinnati Univ., OH, USA', u'authorUrl': u'https://ieeexplore.ieee.org/author/37687104700', u'full_name': u'S. Allen', u'id': 37687104700}, {u'author_order': 3, u'authorUrl': u'https://ieeexplore.ieee.org/author/37270183600', u'full_name': u'J. Heikenfeld', u'id': 37270183600}] International Semiconductor Device Research Symposium, 2003, 2003

In this paper, we review the field of hybrid I/O luminescent devices (organic LEDs, inorganic LEDs and insulator-based ELDs) that combine inorganic and organic materials. Organic "color changing materials" (CCM) are efficient down-conversion light emitters. Multi-color emission from blue converted into InGaN LED array to green, white, yellow and red emission. Emission spectra from blue, green, and red CCM pumped ...


Session 6 overview: displays & biomedical devices

[{u'author_order': 1, u'affiliation': u'Analog Devices, Wilmington, MA, USA', u'full_name': u'Iliana Fujimori-Chen'}, {u'author_order': 2, u'affiliation': u'TU Berlin, Germany', u'full_name': u'Roland Thewes'}] 2010 IEEE International Solid-State Circuits Conference - (ISSCC), 2010

Advances in capacitive touch-sensor technology, LED dimming controllers for LCD backlight applications and an electronic compensation method to minimize OLED degradation are highlighted in the first 3 papers of this session.


A simple and flexible driver for OLED

[{u'author_order': 1, u'affiliation': u'Inst. of Photoelectron., Nankai Univ., Tianjin, China', u'full_name': u'Shaozhen Xiong'}, {u'author_order': 2, u'full_name': u'Weiliang Xie'}, {u'author_order': 3, u'full_name': u'Ying Zhao'}, {u'author_order': 4, u'full_name': u'Junsong Wang'}, {u'author_order': 5, u'full_name': u'Enfeng Liu'}, {u'author_order': 6, u'full_name': u'Chunya Wu'}] Proceedings of 5th Asian Symposium on Information Display. ASID '99 (IEEE Cat. No.99EX291), 1999

A microcontroller-based driver was designed and developed for dot-matrix displays made with organic light emitting diodes (OLEDs). It was made by modifying driver designed for dot matrix LEDs made with inorganic semiconductors. The driver was designed with adjustable driving frequency, pulse-width, polarity and pulse-amplitude. It is a generalized driver suitable for operating OLED dot matrices made with different electroluminescent organic ...


All-organic integrated emissive pixels

[{u'author_order': 1, u'affiliation': u'Center for Thin Film Devices, Pennsylvania State Univ., University Park, PA, USA', u'authorUrl': u'https://ieeexplore.ieee.org/author/37268949300', u'full_name': u'H. Klauk', u'id': 37268949300}, {u'author_order': 2, u'authorUrl': u'https://ieeexplore.ieee.org/author/37443279100', u'full_name': u"B. D'Andrade", u'id': 37443279100}, {u'author_order': 3, u'authorUrl': u'https://ieeexplore.ieee.org/author/37271125200', u'full_name': u'T.N. Jackson', u'id': 37271125200}] 1999 57th Annual Device Research Conference Digest (Cat. No.99TH8393), 1999

We have fabricated fully-integrated all-organic active matrix emissive pixels in which an organic light emitting diode (LED) is directly integrated into the channel region of an organic thin film transistor (TFT). Charge carriers enter the organic emissive layer directly from the TFT channel, thus eliminating the need for TFT drain and LED anode contacts.


High efficient self-assembly CdSe/ZnS quantum dots light-emitting devices in organic matrix

[{u'author_order': 1, u'affiliation': u'School of Photovoltaic and Renewable Energy Engineering, The University of New South Wales, Sydney, Australia', u'authorUrl': u'https://ieeexplore.ieee.org/author/37407886600', u'full_name': u'A. Uddin', u'id': 37407886600}, {u'author_order': 2, u'affiliation': u'School of Materials Science and Engineering, Nanyang Technological University; Singapore 639798', u'authorUrl': u'https://ieeexplore.ieee.org/author/37399502400', u'full_name': u'C.C. Teo', u'id': 37399502400}] 2010 3rd International Nanoelectronics Conference (INEC), 2010

We have fabricated and investigated the effect of CdSe/ZnS quantum dot (QD) concentrations on self-assembly hybrid organic/inorganic light emitting diodes (QD-OLEDs). The uniform distribution of QDs with controllable density was achieved using the conventional spin-coating method. There was a QD threshold concentration below which there was no emission from the QDs. The estimated QD concentration was around 9 × 10<sup>11</sup> ...


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Educational Resources on Light emitting diodes

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eLearning

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IEEE.tv Videos

ITRI: Technology Advances in Flexible Displays and Substrates
Ching W. Tang, Stephen R. Forrest and Mark E. Thompson receive the IEEE Jun-Ichi Nishizawa Medal - Honors Ceremony 2017
Neuromorphic computing with integrated photonics and superconductors - Jeffrey Shainline: 2016 International Conference on Rebooting Computing
Nanotechnology For Electrical Engineers
M. George Craford accepts the IEEE Edison Medal - Honors Ceremony 2017
GaN HEMTs and Schottky Diodes
Array Transversing
Maker Faire 2008: Light-Seeking Mouse Robots
Inspiring Brilliance: James Clerk Maxwells vision and his influence on wireless communications
Inspiring Brilliance: Maxwell, field theory and the road to relativity and quantum theory
GHTC 2012 - Robert Freling Keynote
IEEE @ SXSW 2015 - IEEE Future of Identity Official SXSW Party
Scientific Discovery & Deep Brain Stimulation: Jerrold Vitek, MD, PhD
LiFi: Misconceptions, Conceptions and Opportunities - Harald Haas Plenary from the 2016 IEEE Photonics Conference
IMS 2015: Jonas Zmuidzinas - John Tucker Special Tribute - The High-Frequency Limits of SIS Receivers
Light Our Future - IEEE Photonics Society
A 200um x 200um x 100um, 63nW, 2.4GHz Injectable Fully-Monolithic Wireless BioSensing System: RFIC Industry Showcase 2017
Computing Paradigms: The Largest Cognitive Systems Will Be Optoelectronic - Jeff Shainline - ICRC 2018
Robot Stingrays Powered by Rat Muscle Cells - IEEE Spectrum Report
APEC Exhibitor Showcase - Texas Instruments Power Management

IEEE-USA E-Books

  • Practical Design of An Automotive Tail Light

    An inexpensive automotive tail light is made from 5mm red light emitting diodes (LEDs). This chapter looks at 5mm red LEDs in surface mount, limiting the search to those with ratings of at least 8000 mcd. That will require about 20 devices. The chapter argues that the design issues with temperature compensation that are complex enough that one can just do the design with 15 LEDs. After the issues and costs are explained, the customer agrees to this, since that's what they wanted anyway. The chapter documents the desired size of the tail light, as well as the desired mean time to failure (MTTF). It also mentions load dump. There are two ways of surviving load dump. The common way for most automotive electronics is to clamp the voltage coming out of the surge protection. The other way of handling load dump is what one is doing with the circuitry.

  • Multicolor Modulation

    This chapter discusses multicolor modulation schemes to satisfy both communication and illumination requirements, introducing color shift keying (CSK), which has been adopted in the IEEE802.15.7 standard. The visible light spectrum is de?ned from 380 nm to 780 nm in wavelength, which is divided into seven frequency bands in the IEEE 802.15.7 standard. The implementation of CSK can use the color band based on the center wavelength of the actual optical source. At the receiver, color calibration should be conducted to compensate the color coordinate errors and cancel the interference among di?erent colors. Besides, other light devices and ambient light may cause multicolor imbalance and multicolor interference as well, which can be compensated by a color calibration at the same time. The quadrilateral can be divided into four smaller triangles each illuminated by the optical sources corresponding to its three vertices. The interleaved bits are used for CSK mapping to modulate the optical sources. At the receiver, a joint MAP‐based soft detection is used to generate the soft information as the input for channel decoder, which exchanges extrinsic information with the channel decoder, and hard decision is only performed when the channel decoder reaches its maximum number of iterations.

  • Single Carrier/Carrierless Modulation and Coding

    This chapter presents a review of carrier‐less and single carrier modulation schemes for visible light communication (VLC). The chapter also offers a brief introduction of modulation and coding techniques recently developed for dimming control and flicker mitigation to meet the illumination requirements. Dimming control can be achieved and the simplicity and robustness inherited from pulse position modulation (PPM) can be maintained. CAP is a bandwidth‐efficient two‐dimensional (2‐D) passband transmission scheme. The basic principle of CAP is to choose two orthogonal ?lters to modulate two different data streams, which are combined for simultaneous transmission. Alternatively, the CAP transceiver can be regarded as a trans‐multiplexer. The shaping filter at the transmitter is implemented by an up‐sampled finite impulse response (FIR) window from the original continuous‐time non‐causal signal, while the equalizer at the receiver is down sampled to match the original symbol rate.

  • Practical Design of An LED Light Bulb

    To make the light bulb brighter, the light emitting diodes (LEDs) are also going to have to run hotter. And hotter LEDs means the mean time to failure (MTTF) is going to be less. There are going to be two sources of heat in the LED light bulb design, the ballast and the LEDs. This chapter draws a specification, for marketing sign‐off before the design begins. There are a number of issues that are indirectly addressed in this specification. The chapter talks about total harmonic distortion (THD). While THD has long been familiar to those interested in audio, it is relatively new in the world of power conversion. The chapter provides a summary in words of how the two measures, Flicker Index (FI) and Percent Flicker (%F), are calculated. FI first finds the average light output. The chapter then finds how much of the total light is emitted above that average. % F measures the difference between the brightest light emitted and the dimmest light.

  • Visible Light‐Based Communication and Localization

    Light‐emitting diodes (LEDs) are rapidly being embedded in different commonly used devices. Because LED‐based light sources are widely available, there are several options for visible light communication and positioning systems. This chapter provides an overview of the technologies that have paved the way for visible light communication and positioning systems. It focus on visible light positioning (VLP) systems using information arriving at light detectors from specific light sources and also on how the arrangements of different light detectors can improve VLP system accuracy and usability. VLP systems may use the identity of light anchors, fingerprinting methods, ranging for trilateration, and other methods based on image sensors and computer vision to provide a position fix. The chapter discusses some of the pros and cons of these techniques for VLP. It presents a geometrical analysis only for the image‐sensor based VLP systems.

  • 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.

  • 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.

  • Practical DC Drive Circuitry For LEDs

    LEDs need to be electrically driven in order to emit light. This chapter discusses how to design DC drive circuitry for LEDs. The fundamental determinant of what type of converter to use for a DC drive is set by the relative values of the supply voltage and the LED voltage. The chapter provides some basic information of batteries and also examines the performance of the batteries. The most basic piece of electrical information about a cell or battery is that it is a voltage source. Cells are actually complicated electrochemical systems. A buck converter can convert an input voltage to a lower output voltage. Switch‐mode power supplies (SMPS) are used almost universally to convert a source of power into a form suitable for a load. The chapter covers some of the basics of the topologies that will be suitable for driving LEDs from DC sources.

  • Practical Characteristics of LEDs

    The first thing to know about light emitting diodes (LEDs), and all diodes, is that they are current devices, not voltage devices. Power supplies for LEDs are typically designed to drive them with a constant current. For easy estimates, the forward voltage of a diode is a constant. Forward voltage depends on the temperature of the die, and this depends on how big the package is. The same diode in a bigger package will stay cooler, and thus have a higher forward voltage. Rectifier diodes and LEDs fall into the unintentional category. If they conduct in the reverse direction, there is an excellent chance that they have broken. Now with rectifier diodes, there is an easy solution. This chapter talks about quite a number of parameters for LEDs, as well as their temperature variations. Realizing how much the variation in some of these parameters influences performance, manufacturers offer binning.

  • Practical AC Drive Circuitry For LEDs

    This chapter addresses AC drive circuitry for LEDs. When LED light needs to run off the electrical grid, AC drive circuitry is used. AC power conversion is considerably more complicated than DC. The chapter discusses one of the important safety techniques to be used in the lab: isolating the system from AC line with an isolation transformer. Isolation is also very useful for products for the same reason, although it's not done the same way. The chapter discusses how to select the values of the components. One of the things that make design of AC ballasts much harder than DC is electromagnetic interference (EMI). Governments require that devices that attach to the AC line not produce more than a specific amount of electrical noise. And switch‐mode power supplies, since they switch at high frequency, generate a lot of noise. The chapter describes how to get AC converter to pass EMI.



Standards related to Light emitting diodes

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Jobs related to Light emitting diodes

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