Projection Television - Projector Technology

An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern analog of the slide projector or overhead projector.

Because there's only so much room in your home, think about how much space you're willing to devote to the video projector set-up before buying. It's wise to invest in a projector that's compact and easy to move. Portability can make all the difference. A compact projector can be easily positioned in a room or completely dismantled. You can try out different arrangements at home and find out the most ideal location for viewing.

Before buying, look for what's known as the ANSI (American National Standards Institute) Lumens rating. This rating indicates the brightness produced by the video projector. If the model has a rating of 1,000 or more, it will work well in your home. Keep in mind that the size of your screen and the distance you'll be sitting from it have an influence on brightness.

Contrast ratio is another important factor to think about before buying. Contrast ratio works in conjunction with brightness to deliver a strong image. With a high contrast ratio, viewers will get images with bright whites and deep blacks. Decent contrast ratios start at 1500:1 and go up. 2,000:1 is ideal for home theater.

Pixel density is also critical to the quality of your projector. Generally speaking, a high pixel density equals a good picture. Viewers of high definition programming should be especially aware of pixel density when shopping for a video projector and find a model with a very high pixel count. A count of about 1024 x 728 is fine for regular DVD viewing. HDTV requires a count of 1280 X 720 or 1920 X 1080, depending on the signal.

The basic technique is to combine a high CRI HID lamp and ballast with a condenser and collector fresnel, an LCD removed from a common computer display and a triplet.

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