A Digital Light Processing, or DLP, projector is a projector that produces images using a Digital Micromirror Device, or DMD, which is a semiconductor chip composed of microscopically small mirrors. The way a DLP projector works is light for each primary color (via either a color wheel or from individually colored LEDs or lasers) is directed onto the DMD chip which then reflects the light through the projector’s lens onto the projection screen. During this process each microscopic mirror (which may number in the millions) located on the DMD chip angles itself to create a version of the respective primary color for the image’s pixels. The same process is then repeated for each successive primary color, which when done at an ultra-fast rate creates the full image that represents a frame from the video.
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