Wiktionary
n. As much as fits on a screen.
Usage examples of "screenful".
A moment later, a screenful of subscribers came up with the small lighted bar flashing under the first letter of the line in the middle of the page.
Within seconds, a screenful of information appeared in front of her that had been locked away beneath Boba Fett's own personal security codes before.
I regarded a screenful of confusing graphs, histograms and pie charts hopefully, but was soon put in my miserable place.
There were, of course, screenfuls of patriotic guff about the legendary wisdom and foresight of the Founding Father, George Washington Jefferson the 1st and the sacrificial valour of the Minutemen and Foragers.
The pre-Holocaust maxim, 'knowledge is power', still held good but, since becoming Head of the First Family some fifteen years ago, the P-G's appetite for glowing green phosphor screenfuls of facts had become slightly jaded.
She turned toward a side console, paged through several screenfuls of information, and shook her head.
Golovko had learned to make use of it because he didn't always like to have people doing things for him, and in a minute he had a screenful of data tracked down by the cover name.