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Is it possible to provide light using LCDs so that the power consumption is minimal? |
There was an article in the Reader's Digest describing how a Swiss couple provided light in a remote village in the Himalayas by gifting them LCD lights, a 12 volt battery and a bicycle generator You're probably thinking of LED (?). LEDs consume very little power, generally at low voltages. Originally LEDs were expensive, dull, and came in limited colors. Huge changes are underway. Intensity is growing by leaps and bounds, numerouse colors and IR are available, and they're cheap! Current uses include vehicle marker and brake lights, flashlights and annunciator lights for nearly everything. The next big step, already under way, will be the near elimination of incandescents, including vehicle headlights, with LEDs. It appears that LEDs will take over almost all lighting in the not-to-distant future, until another source comes along. (Vapor lights might be an exception.) Source(s): SAE journals there are people who are making lightbulbs that are used like the regular ones here and they say that it does save on energy. LCD's are the way to go. We have changed half the lightbulbs in our house to LCDs and ALL of the lights on our sailboat, where electricity preservation is an important goal. These lights do not get hot, which is another benefit. The energy savings is huge. Miliwatts instead of watts - that's a factor on the order of 1000, but I do not know the exact numbers. We bought ours from superbrightleds.com, but have not been delighted with them. Several of the clusters have died. I am not sure if this is an industry-wide problem, or just this one company. It's fairly new technology. If other answerers have advice on good sources, that would save me the 5 points of asking the question myself (that's a joke haha) I don't think there's such a thing as an "LCD light". An LCD - a Liquid Crystal Display - is not a source of light, it only controls the passage or reflection of light (there are two kinds... maybe more now). Typical LCD displays use either LED or EL (electroluminescent) light sources placed behind the LCD panel. Maybe you're referring to either LED lights, or EL panels (now often used for exit signs, or other similar flat displays). |
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