Tyco Electronics 1928L - Manual (Page 36)

As an example, a SVGA resolution LCD panel has 800 pixels horizontally by 600 pixels
vertically. Input video is also represented by the same terms. XGA input video has a format
of 1280 pixels horizontally by 1024 pixels vertically. When the input pixels contained in
the video input format match the native resolution of the panel, there is a one to one corre-
spondence of mapping of input video pixels to LCD pixels. As an example, the pixel in
column 45 and row 26 of the input video is in column 45 and row 26 of the LCD. For the
case when the input video is at a lower or higher resolution than the native resolution of the
LCD, the direct correspondence between the video pixels and the LCD pixels is lost. The
LCD controller can compute the correspondence between video pixels and LCD pixels
using algorithms contained on its controller. The accuracy of the algorithms determines the
fidelity of conversion of video pixels to LCD pixels. Poor fidelity conversion can result in
artifacts in the LCD displayed image such as varying width characters.
A-22 Elo Touchmonitor User Guide