By setting the resolution to 1768 x 992 instead of the standard 1920 x 1080 (1080p), the image is effectively "shrunk" so that the entire desktop fits within the visible area of a TV screen that has unchangeable overscan settings .
1768 mm (approx. 69.6 inches) is a standard horizontal viewing width for 75-inch interactive displays and portable projector screens Mobile Devices: Some rugged mobile devices, like the K Mobile Gen 7
If you are trying to use a 1768 controller as "dumb I/O," some experts suggest replacing the L45 processor with a 1769-AENTR Go to product viewer dialog for this item.