XGA projectors work with a standard resolution of 1,207 by 768 pixels, just as many computer monitors do. These units can shine a data display onto a large surface for presentation to an audience.
Resolution
The resolution of a projector describes the number of horizontal and vertical pixels it uses in creating an image. According to Projector Point, an XGA resolution makes up a grid of 1,027 horizontal pixels by 768 vertical pixels. Most XGA projectors can rescale images of higher or lower resolution to fit their pixel grids, though the quality may differ from a natively XGA image.
Technologies
XGA projectors typically use LCD, DLP or LCoS technologies to create an image, according to Wedgwood AV. LCD projectors activate liquid crystals that turn pixels on or off, forming a full-color image, while DLP projectors use thousands of tiny mirrors working in conjunction with a spinning color wheel. LCoS projectors combine both techniques.
Function
An XGA projector receives a data signal from a computer, video player or other attached device, then processes the data as an XGA image. A lamp shining through the image projects it onto a screen or wall.
Tags: vertical pixels
