If you?ve been thinking about buying a home theater projector and read reviews or even done a little bit of research, you?ll be aware that there are both technologies competing for the contents of your wallet.
Both LCD and DLP are wore in projectors suitable for home theaters, however they act in quite different ways and develop slightly different results. If you ask around ? particularly in electronics stores, you?re likely to be provided with a mass of information that?south confusing and typically just plain wrong. So just here, in an effort to clear the fog surrounding projectors, is our guide to LCD v DLP.
LCD
LCD projectors have 3 separate LCD panels, 1 for red, 1 for green, and 1 for blue components of the image being filtered per projector. As light passess through the LCD panels, individual pixels (or picture elements) can be either opened or even closed to either allow light to pass through or even be processed out. In this way the light is modulated and an image projected on to the screen.
LCD projectors have historically had 3 main benefits above DLP. They make even more accurate colors (due to the 3 separate LCD panels), they make a slightly sharper image (although this is as wonderful as undetectable when watching movies) and it is even more light-efficient, which means they create brighter images applying less power.
All the same, LCD projectors also have a few disadvantages, although as the technology improves it is becoming less and less relevant. The 1st of these is pixelation, or even what?south known as the screen door effect. This means that another time you are able to see the individual pixels and it looks as though you are viewing the image through a ?screendoor.? The 2nd historic disadvantage of LCD v DLP is that LCD doesn?t develop absolute black, which means that contrast is less than you would get with DLP.
Nonetheless, the advent of higher resoltion LCD projectors (particularly ?HD-ready? projectors which have a horizontal resolution of 768 pixels or even greater) means that pixelation is less of a problem than it utilized to be. And the improved ability of LCDs to create high-contrast images is also letting them to be taken even more seriously by home theater enthusiasts.
DLP
Digital Light Processing (DLP) is a technology developed by Texas Instruments and it works by projecting light from the projector?south lamp onto a DLP chip, mass-produced higher of thousands of tiny mirrors. Every mirror represents one pixel and directs the light projected onto it either into the lens path to turn the pixel on or even away from it to turn it off. Virtually all DLP projectors have only 1 chip, so consecutively to reproduce color, a color wheel consisting of red, green, blue and periodically, white filters is wore. The wheel spins between the lamp and the chip and changes the color of the light hitting the chip from red, to green, blue. Every mirror on the DLP chip tilts towards or even away from the lens path depending on how much of a particular colour light is compulsory for that pixel at any given instant.
The key benefits DLP has in the LCD v DLP debate is that DLP projectors tend to be smaller and lighter, have better contrast, and don?t suffer the equivalent pixelation problems as LCD projectors. There exists 1 problem that a select few users report with DLP projectors, but it appears to only effect a incredibly microscopic number of people. Because of the way DLP works, at any given instant, the image on screen is either red, green, or even blue. Nonetheless, the images change so quickly, that the person eye doesn?t detect this and your brain puts the red, green and blue images together to produce a complete frame of videos. Unfortunately, a few people can see the individual colours, and others can detect them enough to cause eye-strain and headaches. In any case, technology has improved significantly with the introduction of six-color wheels and faster rotation speeds. The rainbow effect should be a problem for even fewer people. The best way to find out if you?re affected is to check out a DLP projector, perhaps by hiring 1, prior to you purchase.
Technology in both LCD and DLP projectors is improving constantly. Nonetheless, at the time of writing DLP however has a slight edge in the home theater market.
Kenny Hemphill is the editor and publisher of The HDTV Tuner, a site which aims to cut through the confusion surrounding HDTV and provide surfers with new, accurate and simple to read information on HDTV.
Article source: http://www.topiccenter.com/Arts-and-Entertainment/