How to Increase the Lumens of a Projector?

Home Video projection LCD, DLP or LCoS: Which system brings better experience?

Home theater fans are in luck. The range of options that we have at our disposal today is overwhelming. And I do not speak only of brands, which are numerous, and generally offer good quality products, but also models. The main manufacturers tend to have a wide range; in fact, the competition is so fierce that, nowadays, we can buy a Full HD projector of enough quality for between 600 and 800 euros.

However, the most interesting thing is that we can not only choose between a wide range of brands, models and prices, but also between several technologies with important differences between them: LCD, DLP, D-ILA and SXRD (the last two are really the Implementations of the LCoS technology carried out by JVC and Sony respectively.

No technology is perfect

The maturity of the projection technologies is indisputable. The differences that separate the projectors that resort to each of them today are much less evident than they were in the middle of the last decade. But they exist, of course. In fact, these variations in the parameters that determine the quality of the images have caused that there are unconditional and detractors of all the technologies.


My intention is not to go into cumbersome technical details, but it is clear that if we look at all the video projection technologies with sufficient detail, we will conclude that there are significant differences between them. LCD, for example, stands out for the naturalness of colors, and also the latest models offer a very good luminosity with color images, which are always more demanding than when we measure the brightness level of the target. However, they do not usually offer blacks as deep and white as bright as those of the best DLP designs.

DLP technology, for its part, loves many fans for its contrast level, global luminosity and sharpness. However, reasonable price models incorporate a single DMD chip, which makes it necessary to introduce a color wheel to generate the entire tone palette. This wheel usually causes some noise when turning, and in some projectors the colors are slightly less reliable than on the LCD. The wheel can be eliminated, but to achieve this it is necessary to install three DMD chips, which makes the projectors that use this solution much more expensive.


And finally, JVC’s Sony and D-ILA SXRD projectors use LCoS technology, which roughly tries to combine the advantages of LCD and DLP technologies. In fact, they usually offer a very good contrast, deep blacks, a good level of detail in the dark areas, and, something that many moviegoers especially appreciate: the pixel matrix is barely visible. Its main drawback is its price. And they are usually more expensive than the equivalent models that use the LCD and DLP technologies.

In any case, as I advanced to the beginning of the post, the maturity of these technologies has caused that a good design of any of them excel in almost all the important parameters. For this reason, it is not uncommon to find, for example, an LCD projector with a superb contrast or a silent DLP with a very convincing color. What is your opinion on that? What technology do you prefer? We discuss among all which is the most attractive at present.

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