Differences and similarities to LCD and DLP projectors
Whether for the optimal home cinema experience or for conveying important content during presentations – the beamer is becoming increasingly popular. Its compactness and mobility are particularly impressive. Where there is high demand, there are always new products on the market. Projector technology has also been continuously perfected over the years. From LCD to DLP and finally to LCoS technology. But what do these criteria mean and which projector is best suited to which requirements?
LCD projector – The projector with liquid crystals
LCD projectors, just like LCD displays, use liquid crystals to produce the desired colors. In an LCD projector, the projection light is directed onto the liquid crystals, which are located on three different panels. Each panel produces one of the three primary colors. By overlaying the three panels, the desired color tone and thus the entire image can be created - similar to a slide projector.
The LCD projector impresses with its saturated and natural colors, which are particularly effective when displaying text and diagrams. However, the way the colors are generated can sometimes lead to so-called rainbow effects in moving images.
DLP projector – Mirror, mirror in the projector
In contrast to LCD projectors with liquid crystals, DLP projectors use numerous small mirrors. These are located on a chip and project the incident light onto the screen. With DLP projectors, the colors can either also be composed of the three basic colors or generated by a color wheel.
The image that is then projected onto the screen impresses with its high-contrast colors, which do not blur into one another even in films. This is why a DLP projector is usually the preferred choice for an optimal home cinema experience.
LCoS projector – You get the best of both worlds
The LCoS projector now combines both technologies. LCoS stands for Liquid Crystal on silicon. The LCoS projector uses the liquid crystals of the LCD projector, but applies them to a silicon layer. After the light has fallen on the crystals, they ensure that the light is transmitted and passed on to the mirror surface or not, depending on how the liquid crystal cells change.
After the transmitted light is reflected on the mirrors, it is then projected onto the screen to create an image. With an LCoS projector, the colors are also created by mixing the three primary colors with each other. By using mirrors, however, a high pixel density is created here, which in turn leads to a high resolution without rainbow effects.
The combination of mirrors with liquid crystals is particularly impressive because it combines all the positive properties of LCD and DLP projectors without taking on their negative properties. If you are interested in showing 3D films in your home cinema, this is also an argument for purchasing an LCoS projector.
Depending on whether you are looking for a projector for your home cinema, for the conference room or the school, the requirements can differ greatly. Your decision will also depend on whether you would prefer a fixed or a mobile projector and in which room you plan to use it. If you don't yet have answers to these questions, that's absolutely no problem. Our expert team at ComPeri will be happy to help you with the design, installation and subsequent maintenance of your projector – We look forward to hearing from you contact us.