noun
full screen; maximized view
Computing term for displaying content at the largest possible size, typically filling the entire screen or window.
動画を最大表示で見る。
Watch the video in full screen.
ブラウザの最大表示ボタンを押す。
Press the maximize button on the browser.
全画面 is more common for 'full screen' in everyday usage, while 最大表示 is a technical term often seen in software menus.
Compound of 最大 (maximum) and 表示 (display).