LCD Projectors

June 21st, 2008

LCD projectors are the modern equivalent of the slide and overhead projector. LCD projectors use a small and usually colored LCD panel placed before a bright lamp, with the images on the screen provided by sources such as a DVD, VCR or a computer. LCD projectors are generally smaller in size and more easily transportable than former systems. Armed with a lens capable of projecting the images on any surface with a flat plane and not requiring supporting furniture like a big-sized television would, LCD projectors are getting increasingly viable with each passing day.

There are certain things to take into account when purchasing an LCD projector. The projector’s resolution generally determines the price; the higher the resolution, the greater the price. If the need is for minute details to be precisely displayed, then higher resolution projectors are the way to go. The LCD projector’s light output depends on the lumens rating, i.e. the higher the lumens rating the brighter the light output. For classrooms, projectors of 1000-2000 lumens suffice; for big conference rooms, the ideal projectors would be those between 2000-3000 lumens.

The ratio between the brightest and darkest spots of an image is called the projector contrast. When purchasing LCD projectors, it is feasible to go for contrasts of 400:1 or higher. This way the best and the clearest pictures are achieved.

If the projector is to be carried around to different locations, then it is best to purchase a light projector. Many LCD projectors today weigh below five pounds. The lighter projectors generally cost more though. Also, it is viable to get an LCD projector with multiple ports, in the event that you want to connect multiple video or computer sources to the projector simultaneously. Another factor that should be considered is the durability of the lamp. Replacements can be an exorbitant deal. A lamp life of 2000 hours is just about ideal.

LCD provides detailed information on LCD, LCD Projectors, LCD Monitors, LCD Tvs and more. LCD is affiliated with LED Displays.

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LCD Vs Plasma

June 20th, 2008

LCD TVs have a florescent backlight that sends light through a polarizing substrate and liquid crystal molecules. LCD TVs work with green, red and blue pixels. When electric current is applied to the pixels, they darken and stop the backlight from coming through. LCD displays can serve as computer displays with a conventional analog VGA input; it is a good way to save budget and space. LCD displays are thin and lightweight and have excellent longevity.

Plasma screens are a network of green, red and blue phosphors placed between two slender layers of glass. Natural gases neon, xenon and argon are used to produce the information, light and color. These gases fade over time. Unlike LCDs, Plasma screens have no backlight or projection; the phosphors give a bright, rich-in-color display along with a broad viewing angle. When plasma screens first entered the market, they gained instant attention for their large screen sizes and flat presentation. Presently, there are some screens over 80″, and big plasma televisions generally gives a sharp picture. The drawback is that plasma displays are power hungry, and, its fragile makes means that it needs to be professionally installed, especially when it has to be mounted on a wall. Though thin, Plasma displays are quite heavy.

LCD screens are starting to catch up with plasma technology in the market, with companies coming up with bigger (55″ and more) and cheaper models. LCDs are usually inferior to plasma technology when it comes to viewing angles (particularly older versions which have narrow angles) and contrast ratios, though they have worked on the “blur” effect, or the slow refreshing of pictures in the latest models. However, LCDs are developing at a distinctly quicker pace compared to their competition.

Plasma technology could be completely overtaken by LCDs in the near future. It would take a massive effort for plasma displays to keep up with the ever-improving LCDs in terms of longevity, contrast ratio, brightness, etc.

LCD provides detailed information on LCD, LCD Projectors, LCD Monitors, LCD Tvs and more. LCD is affiliated with LED Displays.

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Top 3 Tips for Buying an LCD TV

June 11th, 2008

I want a larger screen and so do you. There is absolutely no reason for this wanting except for the feeling of power that a large screen gives you. I have no idea why it is, but we all seem to want a larger screen for our TVs these days. The question is, how to get a good deal on an LCD TV without paying a fortune. Let’s give you our top 3 tips on buying an LCD TV.

1) Don’t buy a used one if you don’t have to. The funny thing about these TVs is that their prices drop significantly every month and that if you just wait a little longer, the price you’ll pay for a new TV is probably not going to be too far off from the price that you are going to pay for a used one. A little patience might actually save you some dollars here.

2) Compare features, not just prices. One of our favorite places to go to compare prices on LCD Tvs is ConsumerReports.org. Consumer Reports was rating different items way before the internet even become popular. Remember buying your first real car? I do. And I went straight to Consumer Reports to find out that the Honda Accord was the car to buy (and still is according to CR). Shopping for a high end LCD Tv shouldn’t be any different than shopping for a new car. All the resources are at your disposal, so give it a try. I’m sure you can find some gems of information at CR regarding your LCD Tv purchase.

3) HD is coming, don’t miss out. High definition television has allegedly been “right around the corner” for years. Well, that time may finally have arrived. Some LCD Tvs come HD ready and some do not. Make sure your new LCD TV supports HD so that when it is finally popularized, you can watch the programs utilizing this latest technology.

And by the way, why would someone want to buy an LCD TV over a “Plasma”. And what is a plasma? Are they different than LCDs? Basically yes. The big difference is that they use different technologies to deliver a picture. Both have pros and cons. However, both deliver a large screen experience to the user.

Amy Metz is a contributing author for lcdtvme.com. We have all sort of articles on lcd tvs.

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