Video Processors - signals your processor will come across
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There are many signal types and resolutions used in video transmission today. For a rundown on the various qualities see the video signals section of our online faq. What is more relevant for the video processor in your system, is the type of resolution and material these signals are carrying, and what should be done to achieve the best performance from your display. These could be regular, interlaced signals, PAL TV, Progressive scan DVD, or even a PC image. They could be high resolution/definition, meaning they are made up of many lines of information. Or of a lower definition - meaning they contain comparatively less lines of detail for a single image. They maybe interlaced in format, or progressive scan (denoted by an “i” or “p” in the name). A more complex entertainment system may contain the following sources:
These signals need to be converted to the best resolution and refresh rate that suits the display's “native resolution” i.e. the exact number of pixels the display is made up of. Examples include: Standard Definition 42” Plasma 852 x 480 High Definition 42” Plasma 1024 x 768 Standard Definition LCD TV 940 x 540 High Definition 32” LCD TV 1366 x 768 Standard Definition LCD/DLP Projector 848 x 480 / 1024 x 576 High Definition LCD/DLP Projector 1280 x 720 / 1920 x 1080 High Definition LCOS Projector 1800 x 1400 / 1920 x 1080 CRT Front Projection Variable from 480p upwards n.b. CRT systems use electron guns scanning in horizontal lines to display an image, they are not made up of a fixed number of pixels such as plasma/LCD screens and LCD/DLP projectors are. In this case the processors task is to feed the highest resolution and refresh rate which the CRT device can display without issue
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