You will find two primary technologies being used by digital projectors. Liquid crystal display (LCD) is the older technology, with separate see-through panels for every single constituent primary color (RGB or red, blue and green.) The image transmission is dependent on the signal acquired from the projector through the laptop or computer, which then redirects the light signals into a screen. LCD projectors look quite much like older slide projectors and are generally built on a straightforward manner. For this reason, they are priced lower compared to their successors which are the DLP projectors.
Digital Light Processing (DLP) is a technology developed by Texas Instruments in 1987. DLP projectors bring in a paradigm difference to image projection. Unlike their predecessors, DLP projectors make use of tiny mirrors or micro mirrors to reflect light images to pass through the digital projector lens and onto a screen. Each mirror can be thought of as representing a pixel. The mirrors reflect primary colors in rapidly rotating succession as actuated by a rotating color filter wheel. The micro mirrors are collectively referred to as DMD or digital micro mirror device.
For better picture resolution, the rotating wheel is furnished with a plain patch which enables ordinary white light to go into. Such type of DMD projectors are often called single chip projectors. The three chip digital projectors are a little bit challenging, though they deliver better resolution. At this point, a prism splits the light within the lamp into primary colors, that will be redirected to DMD, thereafter recombines them ahead of projecting across the lens.
DLP projectors are lighter and give far better pictures. A single chip resolves 16.7 colors while the three chip model does a whopping 35 trillion colors. That's a plethora of colors packed in a set of digital projectors.
The company that owns the patent for DLP technology is Texas Instruments. Fraunhofer Institute of Dresden in Germany engineered an identical technology and promotes it as Spatial Light Modulators. The other market leaders in both LCD and DLP digital projectors are HP and Samsung.
Digital Light Processing (DLP) is a technology developed by Texas Instruments in 1987. DLP projectors bring in a paradigm difference to image projection. Unlike their predecessors, DLP projectors make use of tiny mirrors or micro mirrors to reflect light images to pass through the digital projector lens and onto a screen. Each mirror can be thought of as representing a pixel. The mirrors reflect primary colors in rapidly rotating succession as actuated by a rotating color filter wheel. The micro mirrors are collectively referred to as DMD or digital micro mirror device.
For better picture resolution, the rotating wheel is furnished with a plain patch which enables ordinary white light to go into. Such type of DMD projectors are often called single chip projectors. The three chip digital projectors are a little bit challenging, though they deliver better resolution. At this point, a prism splits the light within the lamp into primary colors, that will be redirected to DMD, thereafter recombines them ahead of projecting across the lens.
DLP projectors are lighter and give far better pictures. A single chip resolves 16.7 colors while the three chip model does a whopping 35 trillion colors. That's a plethora of colors packed in a set of digital projectors.
The company that owns the patent for DLP technology is Texas Instruments. Fraunhofer Institute of Dresden in Germany engineered an identical technology and promotes it as Spatial Light Modulators. The other market leaders in both LCD and DLP digital projectors are HP and Samsung.
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