In 2013, Egwin Avau and Maarten Baeten, from the Learning in Community UI Bikes class, created digital signs encouraging bicycle registration across campus.

The dimensions are as follows:

Housing: JPEG 1921 pixels wide x 827 pixels high

Examples and more info: http://www.housing.illinois.edu/Policies/Electronic%20Signage.aspx

Campus Rec:  JPEG 1185 pixels wide x 885 pixels high

More info:  http://www.campusrec.illinois.edu/sponsors/

MTD has 2 sizes: JPEG 1080 pixels wide x 480 pixels tall,  and 540 pixels wide x 950 pixels tall
*Most screens are vertically oriented (ad at the bottom) but two are horizontally oriented (ad on the right).

More info: http://www.cumtd.com/advertise/displays

This is what they look like (see the little “be alert” yellow ad toward the bottom): http://www.cumtd.com/the-inside-lane/new-design-implemented-on-stopwatch-kiosks/