Resolution is a term that refers to the number of horizontal and verticle pixels of the projected image. The higher the number of pixels, the higher the resolution, and the sharper the image.
Common resolutions found on education projectors:
* SVGA and WVGA are essentially “legacy” resolutions.
While there are still some very low cost projectors sold with SVGA an WVGA resolutions (including some “toy” priced dim LED pico projectors for home), but they are no longer normally bought by schools. There are still large numbers of them in K-12 schools. Most are long overdue for replacement. Their bulbs last only a fraction of the life of new projectors (nevermind laser projectors), so the cost of supporting those old projectors is high.
XGA models are typically used to replace the SVGA (and if any are still around – VGA) projectors. SVGA projectors are typically replaced by WXGA, WUXGA or 1080p projectors.
Click the links below to read the full definition of each projector term.
HD vs Pixel Shifting vs Native 4K
Equivalent Visibility Rule