In the event you’ve been thinking about shopping for a home theater projector, perhaps to connect with an HDTV tuner, and have read evaluations or performed a little bit of research, you will be aware that there are applied sciences competing for the contents of your wallet.
Each LCD and DLP are used in projectors suitable for dwelling theaters, but they work in fairly different ways and produce slightly totally different results. If you happen to ask around ‘ notably in electronics stores, you’re prone to be provided with a mass of data that’s confusing and infrequently just plain wrong. So 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 elements of the image being processed by the mini projector. As light passess by the LCD panels, particular person pixels (or picture parts) could be either opened or closed to both permit light to pass through or be filtered out. In this means the light is modulated and an image projected on to the screen.
LCD projectors have historically had three important advantages over DLP. They produce more accurate colors (as a result of three separate LCD panels), they produce a slightly sharper image (although this is as good as undetectable when watching movies) and they’re more light-efficient, which means they produce brighter images utilizing less power.
Nonetheless, LCD projectors even have some disadvantages, though because the technology improves these have gotten less and less relevant. The first of those is pixelation, or what’s generally known as the screen door effect. This implies that typically you can see the person pixels and it looks as if you are viewing the image by means of a ‘screendoor.’ The second historic disadvantage of LCD v DLP is that LCD doesn’t produce absolute black, which means that contrast is less than you’ll get with DLP.
Nonetheless, the advent of higher resoltion LCD projectors (particularly ‘HD-ready’ projectors which have a horizontal resolution of 768 pixels or better) signifies that pixelation is less of an issue than it used to be. And the improved means of LCDs to provide high-distinction images can be permitting them to be taken more critically by residence theater enthusiasts.
Digital Light Processing (DLP) is a know-how 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. Every mirror represents a single pixel and directs the light projected onto it either into the lens path to show the pixel on or away from it to turn it off. Most DLP projectors have only one chip, so in order to reproduce coloration, a coloration wheel consisting of red, green, blue and sometimes, white filters is used. The wheel spins between the lamp and the chip and changes the colour 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 relying on how much of a specific color light is required for that pixel at any given instant.