Comparison between the DLP vs. LCD technology

The LCD technology today is very different from the LCD of the past. Virtually all current computer monitors are LCD. They are easily melts the lamp and these costs are cheap; almost as much of what it costs to the projector.Another important point is the actual brightness. In most DLP projectors, brightness they say have measured on the basis of the color white. For intensity, equipments are configured saturating the white color, which makes the other colors are very poor. Some allow you to modify this configuration, either by a factor of white (as in Infocus) or changing the type of video signal. This is accomplished by enhancing the colors, but the brightness of the projector as a general decline in 30 to 40%.


DLP technology on a single chip (virtually every DLP) wasted almost 50% of the light from the lamp, so this has to be higher watt vs. an LCD projector in the same light output. This causes the DLP projectors will warm much more than the LCD. The operation of this equipment at high temperatures makes it easy to shut down after the use of 2 to 3 hours, that most if we are in cities that are not from coast to more than 1400 meters above sea level.DLP technology as such is good. Within chip from Texas Instruments may take many thousands of hours, in fact projectors to recommend continued use that are DLP. These kinds of projectors are very different from the DLP economic issues, which were constructed with another level of components: lighting, color rotor high time to 7 segments, cooling system based on circuit gas. In fact, the three-chip DLP technology is the most managed to theaters with digital technology.The problem is that DLP projectors tend to have economic problems from the 400 hrs. Whether they are based on lamp, overheat and shut down, or they fail the source or the color wheel. Typically, repair costs almost as much or more than a new projector.Another point is that often sellers of DLP projectors bring up is the high contrast of DLP projectors (2000:1) criticized the "low" contrast of the majority of LCD projectors that are of 400:1. The reality is that when the spotlight are used under normal conditions inside a board room, classroom, and so on., ambient light that has never makes us see colors such as dark, we see this is gray, so even if the projector us of contrasts greater than 400:1 these are not appreciate these low light conditions.Contrast is relevant when you want to see in total darkness, typically for home theater, for this use exists designed for this purpose, where the contrast is really high at ranges of 6000:1 onwards. Overall, the lifetime of a DLP video projector is much smaller than that of an LCD video projector.Another important point is who actually manufactures the video. Today, there are brands like Dell, Viewsonic, 3m, Boxlight, which do not manufacture the equipment sold under its brand, but are trademarks of brands are mostly unknown to Taiwanese or Chinese origin. So look for brands if the equipment of that they sell.One important factor is the performance of the lamps, as virtually all manufacturers of projectors, they buy the lamps to third, where the sale of spare parts is very lucrative, because it makes the lamps end up merging or lowering its brightness over time. Such as for Panasonic, the lamps are an important part of a video projector. They have their own patent for lamps manufactured within the same group of companies of Matsushita Electronics. Lamps that the vast majority of lamps exceed the 2000 hours of use with a light intensity of 95%.High quality screen contrast is between 700:1 and 2000:1 for conventional projectors and contrasts between 1,000:1 and 10,000:1 for projectors for home theater. Low quality screen contrast is between 400:1 and 500:1 for conventional projectors & contrasts between 1000:1 and 60,000:1 for projectors for home theater.For projectors presentations with ambient light conditions in an office, a ratio of 500:1 is sufficient; while for a projector for home theater that is recommended is 1500:1 onwards. This is with something of light there is no difference between a contrast of 500:1 and one of 5000:1.

DLP:

It means "Digital Light Processing which is a patent for Texas Instrument. This system consists of a "Chip" featuring an array of micro mirrors, which are digitally polarized many times per second, thus depending on the number of times that these will be further polarized light reflected by each of these micro mirrors. By using a single "Chip" light that is reflected passed through a color wheel that rotates forming images with different colors.The advantages of this technology is the mechanism that takes up less space than an LCD, and the grid between pixels is not visible to the naked eye Which gives an image smooth, with good contrasts.The disadvantages of this technology, which is to have a single element, must share the light to project each color, so dark colors are poor and white is very intense. The lamp has a higher watt so tend to heat up quickly. Their lamps tend to melt more easily than the LCD.DLP Cinema Technology which is based on three "chips" to act as the 3 LCD panels thereby achieves a Very Good Quality. Panasonic and other brands now have computers with this technology, which is very expensive.

LCD:

It means "Liquid Crystal Display", liquid crystal display. This technology is mainly used in screens for laptops. As for many projectors use 3 panels with a prism to generate the image. This technology in projectors is rich in color and a lamp requires less power than in the DLP technology. Their lamps tend to melt down from the DLP projectors.Its main drawback is that there is a grid between pixels, which in resolutions lower as SVGA, is visible at a distance close to the screen, and to move away, it gives a shadow effect. The newer model with this technology have the lowest grid, and with resolutions higher than SVGA and is almost imperceptible. Such as in projectors for home theater there is a new technology called "Smooth Screen" from Panasonic, which reduces the grid through a lens of diffraction.