light-emitting diode

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light-emitting diode (LED),

n a semiconductor device that produces light when activated with an electrical current.
References in periodicals archive ?
The modulation speed of either a light-emitting diode or a light-emitting transistor is limited by the rate at which electrons and holes (the minus and plus charges - the carriers of current) recombine.
have now devised a way to enhance the electronic and optical properties of a polymer that is widely used for making organic light-emitting diodes.
The entry barriers of the light-emitting diode industry from the upstream to the downstream are cut down gradually.
The apparatus consists of light-emitting diodes in a specific array that emit a non-thermal, low energy light at a pulsating frequency.
Its mission is to accelerate the adoption and evolution of light-emitting diodes (LEDs) into high-volume general lighting applications so that consumers can realize lower energy and maintenance costs.
Zhou's nanomaterials may make flat-screens that last twice as long as today's plasma TVs, cost half as much, and, with organic light-emitting diodes (OLEDs), have none of the trace metals that can deteriorate picture quality over time.
Among the topics are organic light-emitting devices and their applications for flat-panel displays, organic small-molecule materials for organic light-emitting diodes, polarized light emission from light-emitting diodes, vapor-deposited organic light-emitting devices, and microstructural characterization and performance measurements.
Contract notice: Light-emitting Diodes (LED) Lighting.
SSL is a type of energy-efficient lighting, using semiconductor light-emitting diodes (LEDs), organic light-emitting diodes (OLED), or polymerlight-emitting diodes (PLED) as sources of illumination.
In an effort to conserve energy citywide, Los Angeles Mayor Antonio Villaraigosa will announce today that traffic signals will be powered by light-emitting diodes.
The idea was to replace old, incandescent lights with energy-efficient light-emitting diodes.