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SXGA
1280 x 1024 -- 60 Hz
1280 x 1024 -- 70 Hz
1280 x 1024 -- 75 Hz
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 correspondence 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 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.
