Subjects stared into a light box containing light-emitting diodes (LEDs) for 60 minutes in each experiment.
Light-emitting diodes--semiconductors that emit light when electricity passes through them--have been around since the 1960s.
Made by Dutch electronics giant Philips, the bulb swaps filaments for light-emitting diodes to provide illumination.
The use of organic light-emitting diodes allows screens to be made thinner and more flexible than before.
Light-emitting chemicals used in the filter help scientists measure how many bacteria are bound onto the antibodies.
It uses rows of light-emitting diodes that cost only 3 cents each to stimulate the fluorescent tags.
The LED stands for "light-emitting diode, " a semiconductor chip, found in VCRs and radios, that glows when electrified.
Plastic circuitry promises as large a market as light-emitting polymers, but the technology is taking longer to commercialise.
Light-emitting diodes have progressed from simple red indicators on electronic products to become torches, streetlights and car headlights.
Previous efforts to create light-emitting plants in the lab have made use of a luciferase gene derived from fireflies.
The light-emitting diode, or LED, of devices like the iPhone are designed to reflect light outwards toward the user.
Using a thin film of polyfluorene, a light-emitting plastic, they have created a laser which reacts with explosive vapour.
Shares of the company, which proposes to finance LED (light-emitting diode) lights for parking garages, recently traded for 25 cents.
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But the laser and the light-emitting diode produced wonderfully disciplined light--meaning, it would go where and how you wanted it to.
If Friend's discovery lives up to its promise, the LCD will someday be tossed aside in favor of the OLED--organic light-emitting display.
Researchers are working on a new generation of white light-emitting diodes (LEDs) that would be much more efficient than existing light bulbs.
This printing process is already used in organic solar cells and organic light-emitting diodes (OLEDs) that form the displays of mobile phones.
But high-power light-emitting diodes (LEDs) promise a brighter future in outdoor illumination.
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The group also plans to produce organic light-emitting diode screens for televisions.
Sales of light-emitting diode (LED) panels for TVs also showed continuous growth.
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Earlier this month, Dr. Bruchas and his colleagues made public their development of light-emitting diodes thousands of times smaller than those currently available commercially.
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Strips of eco-friendly, light-emitting diodes, known as LED lighting, are flexible and can be used to illuminate architectural details in a rainbow of colors.
Goeken's PolyBrite International of Naperville, Ill. looks to leapfrog the little fluorescents with energy-saving bulbs that rely on light-emitting diodes, which are glowing semiconductor chips.
Those claims are probably particularly bothersome to Samsung, which has developed its own premium screen technology it calls Super AMOLED (Active Matrix Organic light-emitting diode).
Executives also said they would show off a 55in OLED (organic light-emitting diode) display that could show two different shows full-screen at the same time.
Light-emitting diode (LED) televisions present another energy-efficient option for larger screens.
Richardson expects that transparent Organic Light-Emitting Diodes (OLEDs) will be embedded in structural glass, so that flat clear panels will provide a plethora of lighting options.
Results from a global trial of light-emitting diode (LED) street lights confirm that the fixtures can deliver electricity savings of up to 85% over incumbent technologies.
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The HP ZR2740w, ZR2440w, ZR2240w and ZR2040w displays come with light-emitting diode (LED) backlights for a slim industrial design, more robust colors and the elimination of mercury.
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As a result devices that use them need fewer LEDs (light-emitting diodes) to provide backlighting, allowing the screen to take up less room and use less power.
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