Some lower-output projectors (and all of the new so-called 'nano' projectors) use LED's for their light source. Most higher-output projectors use incandescent halogen or HID lamps for the light source.
Basically ,LED stands for Light Emitting Diode and LCD stands for Liquid Crystal Display. LCD TV use fluorescent lights while LED TV use those light emitting diodes. The fluorescent lights in an LCD TV are always behind the screen. On an LED TV, the light emitting diodes can be placed either behind the screen or around its edges. In my opinion, LED TV is more efficient than LCD TV
Yes, LCD projectors come with a variety of inputs. Depending on the age or manufacturer's intended use, you'll be able to find LCD projectors available with inputs ranging from VGA and coaxial all the way to Component, DVI and HDMI.
LED TV's are actually LCD screens, but instead of having a fluorescent tube backlight, LED TV's use LED lights as their backlight.
LED projectors are very different than your typical DLP and LCD projectors as they do not require a typical projector lamp like their predecessors. Led projectors require less maintenance than their counterparts and have much longer "lamp life" which is typically around 20,000 hours for an LED light source versus 2,000-4,000 for a conventional projector lamp. LED projectors use the light harnessed by individual laser diodes to create the light that is usually created through a standard type of bulb or lamp.
LCD projectors are used to project video or images onto a flat screen. The technology has almost replaced the older slide projectors or over head projectors. The picture is much clearer than on old technology. A common use of LCD projectors is to project song lyrics onto a screen during church services or to display powerpoint slides during a college lecture.
When they say LED they are talking about the backlight. A led monitor is a type of LCD screen. I think what you mean is "Which is better LED monitors or CCFL monitors." The answer to that is LED because they are brighter and they use less power. They can also be clearer.
Basically ,LED stands for Light Emitting Diode and LCD stands for Liquid Crystal Display. LCD TV use fluorescent lights while LED TV use those light emitting diodes. The fluorescent lights in an LCD TV are always behind the screen. On an LED TV, the light emitting diodes can be placed either behind the screen or around its edges. In my opinion ,LED TV is more efficient than LCD TV
No, projectors are not difficult to use. Just plug them in, hook up the audio/video cables to you cable box or computer, and press the power button on the projector to start it up.
the use less electricity
First of all, an LED and an LCD are the same thing. An LED is just an LCD with a LED backlight. LEDs use less power and have a higher contrast ratio. I say if you can afford it, go with the LED, you won't be disappointed!
Yes!LED TV is more Expensive than LCD.
Examples of these devices are CRT monitors LCD monitors Data Projectors.