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LCD /LED Projectors

An LCD/LED projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector. To display images, LCD/LED (liquid-crystal display)/(Light Emitting Diode) projectors typically send light from a metal-halide lamp through a prism or series of dichroic filters that separates light to three polysilicon panels – one each for the red, green and blue components of the video signal. As polarized light passes through the panels (combination of polarizer, LCD/LED panel and analyzer), individual pixels can be opened to allow light to pass or closed to block the light.

The combination of open and closed pixels can produce a wide range of colors and shades in the projected image. Metal-halide lamps are used because they output an ideal color temperature and a broad spectrum of color.

LED and LCD Projectors Dealers India

These lamps also have the ability to produce an extremely large amount of light within a small area; current projectors average about 2,000 to 15,000 American National Standards Institute (ANSI) lumens.Other technologies, such as Digital Light Processing (DLP) and liquid crystal on silicon(LCOS) are also becoming more popular in modestly priced video projection.

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