DLP Screens: Mini Mirror

2007-03-08 10:33:40

( Technology )



DLP AND LCD

DLP screens are different from LCD monitors. While both are modern, sophisticated imaging technologies, both have marked differences, with each one being better in some aspects than others. DLP screens make use of a very different technology from LCD’s or liquid crystal display.

In a liquid crystal display, three layers of LCD glass panels, each corresponding to one primary color are arranged one on top of the other. As light signal pass through the layers, the discrete pixels open and close to allow light to pass through or block it altogether. The opening and closing of the individual pixels create the image that we see on our screens.

For DLP screens, the main element is a reflective chip which is actually made up of thousands of microscopic mirrors, each corresponding to a discrete pixel. The mirrors move back and forth when a signal is passed through it, reflecting the light towards the lens or away from it.

FOR OFFICE AND HOME THEATER SYSTEMS

DLP screens are ideal for a front projector screen. Because the main component of a DLP front projection screen is a mirror-like chip, DLP projectors can be very compact and portable. You cannot make small projectors with an LCD because of the glass panels that it requires. A DLP projector screen also produces greater contrast and deeper blacks, something which makes DLP screens ideal for entertainment set-ups as well.

In so far as home theater is concerned, DLP screens are also ahead of LCD’s where picture color, contrast, and vividness are concerned. These qualities have made DLP screens the preferred choice for consumers when buying a home theater system.

Still, this is not to say that LCD’s have been left behind. Both technologies show a lot of potential for many types of application. Just because one is ahead does not necessarily mean that it is better. For sure as these two continue to improve, the consumers will surely benefit.


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