Understanding projector resolution
Shopping for a projector? Understanding resolution is key.
Resolution refers to the number of lines displayed on the screen. The higher the resolution, the crisper the quality of the picture.
Most projectors come with a fixed resolution that is completely separate from the incoming signal received. If you plan to use the projector with only one computer, it’s important to match the resolution to the computer’s resolution.
Here’s a list of the different resolutions:
SVGA = 800×600. The Super Video Graphics Array (SVGA) is a video-display-standard type developed by the Video Electronics Standards Association (VESA) for IBM PC compatible personal computers (PCs).
XGA = 1024×768. XGA-2 is a display mode with high color and higher-refresh rates than XGA. XGA. Introduced by IBM in 1990, this =standard is used in desktop and laptop computers as well as in projection systems.
WXGA = 1280×768. Wide XGA describes a display screen that is appropriate for business but is also suitable for watching DVDs with 16 million colors. This display was common in widescreen notebook computers.
SXGA+ = 1400×1050. This resolution became the standard for early graphics and monitors with an aspect ratio of 5:4 (1.25:1) for 17″ and 19″ LCD monitors. Allows 24-bit colour in 4 MB of graphics memory, or 4-bit colour in 640 kB.
720p = 1280×720. This was the first available High Definition TV resolution. It is still available but is not as popular as it once was now that the prices have come down on the 1080 TVs. By comparison, a 720p TV has twice the resolution of an analog TV picture.
1080p = 1920×1080. Known as Full High Definiton (FHD), this set has the highest number of pixels –1,920 pixels displayed across the screen horizontally and 1,080 pixels down the screen vertically. The “P” stands for progressive scan and uses the widescreen aspect ratio of 16:9. It’s become the ATSC standard in the USA and now includes all TV broadcasts, Blueray Discs, smartphones, Internet content and most TV, projectors, computer monitors, video game consoles and most digital cameras or camcorders.
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