What is a LCD projector?
An LCD projector (Liquid Crystal Display) 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. An LCD projector connects to a computer (laptop or desktop) VCR’s and DVD Players, allowing the information to be viewed by the entire class.
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Digital projector introduction
As far as critical equipment goes, the projector you choose for your make-or-break presentation is
as important as it gets. You can spend hours memorizing figures, writing witty anecdotes on note
cards, and ironing that power suit. But even if your content is knock-’em dead good, the
effectiveness of your presentation depends on the audience being able to see it clearly. A high
quality digital projector can make the difference between a presentation that sings or falls flat.
The projector industry has exploded as notebook computers and projectors have replaced slide
trays and transparencies in conference rooms everywhere. The size and price of projectors have
shrunk accordingly, as manufacturers scramble to cater to businesses that want projection devices
that are as small and affordable as the laptops their presentations are built on.
Different projection technologies have helped pave the way for the current crop of low-weight
machines. Of course, depending on the type of projector you need, weight may not be a factor at
all. Not that that makes your decision any easier – choosing a model with the correct resolution,
brightness, and other features can still be a difficult task.
Types of Projectors
Projectors fall into three broad categories: Ultralights, conference room projectors, and fixed
installation projectors.
Ultralights (Personal)
If you are a "road warrior" – a sales or business development professional who makes frequent
presentations while on the road – an ultralight projector is probably right for you. Every year,
these lightweights get smaller. The lightest ultralight a year ago was proud to be less than five
pounds. The latest models tip the scales at just under three pounds, spurring some manufacturers
to offer an even smaller "micro portable" category.
Created to serve the mobile business community, ultralights now come close to matching larger
models in brightness and other extra features. If weight is an important issue for you, be sure to
find out the total weight of the projection system (cables, remote, case) and not just the projector.
But try not to get carried away: even on an extended trip, you are not likely to notice a difference
of six ounces and you will pay extra for the very smallest models.
Conference Room
If your projector is more likely to move from room to room rather than across the country, there
is a class of projectors created with less focus on weight and more attention to performance.
Conference room projectors, sometimes called multipurpose projectors, tend to be heavier,
brighter, and more adaptable to a large room than their ultralight counterparts. Depending on
your budget, these projectors come with many extra features such as extra computer or video
