"Fixed" Resolution

Portable home-theater LCD and DLP projectors both come in different "fixed" resolutions. That is, not every projector has the same resolution as every other. And a projector's fixed resolution rarely matches the exact resolution of the incoming signal. Therefore, the projector must first resize the signal's image internally, through shrinking or stretching, to map it onto its own fixed-resolution LCD or DLP panel.
Varieties of Fixed-Resolution Projector Panels

• VGA (obsolete)
• SVGA = 800 x 600 pixels
• XGA = 1024 x 768 pixels
• SXGA = 1280 x 1024 pixels (uncommon)

These terms represent the various fixed resolutions of a projector's internal panel, onto which an incoming signal must first be mapped before it can then be projected. SVGA and XGA are currently the most common resolutions in the marketplace.