Lcd and Digital Projector

October 6th, 2010 by admin Leave a reply »

Lcd and Digital ProjectorVideo projector video projector used for presentations at the conference. Digital projectors receive video signals from the rule, showing a desktop computer and the image on a large screen that can be easily understood by everyone in the meeting.

Two Types of Digital Projector
First, there are two technologies that are used in digital projectors, the older the LCD screen, LCD with an independent transparent LCD panel for each component color video transmission depends on the received signal (red, blue and green.) With the projector of PCs, which directs the light through the LCD display and the lens to the screen. LCD projector looks very much like the old slide projectors and simple in construction and thus less cost than their successors DLP projector. LCD can display a slide show on the focal length of the lens makes it be considered to be related completely. Clarity of the image on the LCD projector according to the number of pixels is set. (Pixels are the smallest areas of the data or the holder of the image)

DLP Projectors: The latest news from Digital Projector
Digital Light Processing or DLP is a technology from Texas Instruments in 1987 developed. DLP projector brings the differences in the technological paradigm shift in the projection image to the board room. Unlike their predecessors, DLP projectors use tiny mirrors or micro mirrors to reflect images of light through the lens of the projector and onto a screen. Each mirror can be thought of as the representative of a pixel. The mirror reflects driven the base color with a rapidly rotating succession as by the rotating color filter. Figure quickly change the color “Construction” drawings for the perception of the human eye. Micro-mirrors are collectively referred to as “Digital Micromirror Device, or DMD.

To improve the clarity of the image, rotating wheel with a regular patch, the simple white light allows safe. DMD projector type single-chip projector is also known. Three-chip projectors are a little complicated, but provide better clarity. This prism splits light into primary colors of light to the DMD, which is addressed before it recombines with a protruding lens.

Where are the differences
DLP projectors are lighter and offer a much better picture. 7:16, when filling a single-chip color three-chip models do hold your breath, 35 trillion colors.

Commercial Models
Texas Instruments is the pioneer who has the patent for DLP technology. Fraunhofer Institute in Dresden, Germany to develop the same technology as the market and at the same spatial light modulator. HP, Samsung, another market leader in LCD and DLP technology.

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