Should you’ve been thinking about shopping for a home theater projector, maybe to hook up with an HDTV tuner, and have read critiques or done a bit little bit of analysis, you will be aware that there are technologies competing for the contents of your wallet.
Both LCD and DLP are utilized in projectors suitable for residence theaters, but they work in fairly different ways and produce slightly completely different results. Should you ask round ‘ significantly in electronics stores, you’re likely to be provided with a mass of knowledge that is complicated and often just plain wrong. So right here, in an effort to clear the fog surrounding projectors, is our guide to LCD v DLP.
LCD projectors have three separate LCD panels, one for red, one for green, and one for blue parts of the image being processed by the valuable projector. As light passess via the LCD panels, individual pixels (or image components) will be both opened or closed to both permit light to pass via or be filtered out. In this approach the light is modulated and an image projected on to the screen.
LCD projectors have historically had three principal advantages over DLP. They produce more accurate colors (because of the three separate LCD panels), they produce a slightly sharper image (although this is nearly as good as undetectable when watching movies) and they’re more light-environment friendly, which means they produce brighter images utilizing less power.
Nonetheless, LCD projectors also have some disadvantages, though because the expertise improves these have gotten less and less relevant. The first of those is pixelation, or what’s often known as the screen door effect. This means that typically you’ll be able to see the person pixels and it appears to be like as if you might be viewing the image via a ‘screendoor.’ The second historic disadvantage of LCD v DLP is that LCD would not produce absolute black, which signifies that contrast is less than you’ll get with DLP.
However, the advent of higher resoltion LCD projectors (significantly ‘HD-ready’ projectors which have a horizontal decision of 768 pixels or larger) means that pixelation is less of an issue than it used to be. And the improved potential of LCDs to produce high-contrast images is also allowing them to be taken more critically by house theater enthusiasts.
Digital Light Processing (DLP) is a technology developed by Texas Instruments and it really works by projecting light from the projector’s lamp onto a DLP chip, made up of 1000’s of tiny mirrors. Each mirror represents a single pixel and directs the light projected onto it both into the lens path to show the pixel on or away from it to show it off. Most DLP projectors have only one chip, so with the intention to reproduce shade, a color wheel consisting of red, green, blue and generally, white filters is used. The wheel spins between the lamp and the chip and adjustments the color of the light hitting the chip from red, to green, blue. Each mirror on the DLP chip tilts towards or away from the lens path depending on how much of a specific color light is required for that pixel at any given instant.