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A-20 Elo Entuitive Touchmonitor User Guide
For example, a SVGA resolution LCD panel displays 800 pixels horizontally
and 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 correspondence of mapping
of input video pixels to LCD pixels. For example, the pixel in 45 column and 26
row of the input video is in 45 column and 26 row of the LCD. When the input
video is set at a lower 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 in the 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 display, such as
characters of varying width.