WHY ARE THERE 3 DIFFERENT SXGA MODES (SXGA, SXGA- and SXGA+)?
SXGA is a “strange” computer signal standard. While the common computer resolutions VGA (640×480 pixel), SVGA (800×600), XGA (1024×768) and UXGA (1600×1400) all have an aspect ratio of 4:3, SXGA is different. SXGA has 1280×1024 pixels and an aspect ratio of 5:4. However most computer monitors, projectors or CCDs do not support the “original” SXGA standard, because the aspect ratio of 5:4 does not fit to all other resolutions apart from SXGA. For example an SXGA computer monitor would look a bit strange because of the 5:4 image ratio. Especially in times when widescreen monitors are considered as “very modern”. Therefore the most common variation of the SXGA resolution is SXGA- with 1280×960 pixels. This is an aspect ratio of exactly 4:3 and it fits to all other resolutions. SXGA- is also the native resolution of the new VZ-9plus. Another variation of SXGA is SXGA+. This has 1360×1024 pixels and also an aspect ratio of 4:3. There are also a couple of display units on the market which of
