LCD Projector

Liquid crystal display projectors, commonly referred to as LCD projectors, have virtually overtaken old-fashioned slide projectors and overhead projectors as the equipment of choice when conveying visual information such as video, images or computer data, to large groups of people. From school children viewing images from Europe in geography class to groups of executives discussing the annual report in the board room, LCD projectors offer a visually clear and sharp way to present information.

While the end result of the use of an LCD projector is essentially the same as that of a slide projector – a light bulb shines through a colored panel and into a lens – the difference lies in the fact that the transparent LCD takes the place of the colored panel. The projector operates by sending polarized light through the panel, allowing individual pixels to open and allow light to pass or close and block light. These processes allow for a wide range of colors and shades in the projected image. LCD projector critics often point out that this process sometimes hampers the display of true black or even, in some cases, dark gray.

If you plan to put a lot of mileage on your LCD projector, be sure to note that the lamps last approximately from 1,000 to 4,000 hours and will cost anywhere from $300 to over $600 USD to replace, though the user can generally install the replacement, meaning that you will not spend extra on service costs. The same is not true for larger scale projectors, such as those used to screen films to large audiences. Those replacement lamps will cost quite a bit more and require a service person to make the change. When comparing prices, search for LCD projectors that offer “eco-mode” with their lamps. This environmentally friendly option can extend lamp life and save you money.

It is quite possible to use LCD projectors in home theatre systems, and some do it yourselfers even build their own home theatre systems using old LCD screens and obsolete slide projectors. Using LCD projectors, home theatre owners can view larger images than are currently available on existing televisions, but as a rule of thumb, the quality of the LCD projectors image will decrease as the size of the image projected increases.

When choosing an LCD projector to purchase, two of the most important factors to consider are brightness and weight. If you plan to project information to large groups of people are within auditoriums, an extremely bright projector will ensure that everyone can see the display. But because very bright projectors tend to cost significantly more than dimmer projectors, if you do not plan to display in large spaces, you may want to forego brightness in favor of low cost.

Weight is an important factor when considering portability and placement. As a rule of thumb, the lighter the LCD projector the more expensive it will be. The smallest portable projectors are three pounds or less, and projectors as large as seven pounds can still be used for presentations on the go.

With today’s technology, LCD projectors can easily be hooked up to laptops, PCs and other sources for ease of use. This makes portable presentations easier, more cost-effective and more efficient than ever, especially when combined with a light, highly portable LCD projector model. You will want to consider your need for portability as compared to weight when deciding on a price point at which to purchase your LCD projector.

Finally, when you have chosen your LCD projector, note that the best surface on which to project the image you wish to display is a blank white or gray surface. Many people choose to purchase dedicated screens for best display quality.

This LCD Projector Review is Written/Updated on Mar 19th, 2009 and filed under Computer Hardware. Both comments and pings are currently closed.

Comments are closed