A fullscreen may refer to any of the following:
1. A full screen is any object or window that occupies the whole computer screen, covering up anything in the background. When a window is not fullscreen, it is known as a window. If the program and operating system support the ability for a window to be full screen, click the maximize button to make the window occupy the entire screen.
What is window fullscreen?
More commonly referred to as maximized, window fullscreen is any window or program that is using the entire screen but is still a window. With computer games, it is not uncommon for the game to have both a fullscreen (borderless fullscreen) and window fullscreen mode. When running a game in window fullscreen mode, you may notice a performance increase and be able to switch between other programs quicker.
Should I use "fullscreen," "full screen," or "full-screen" in my writing?
When describing a mode or setting "fullscreen" or "full-screen" should be used. When describing anything that is occupying the entire display or screen "full screen" should be used.
How to exit out of fullscreen
2. The fullscreen format is a display format that modifies the original movie to fit the aspect ratio of your TV or other display. When a movie is displayed in the full screen format, a notice is shown before the movie starts indicating that the movie has been formatted to fit your screen or TV. During this formatting process, the edges of the movie are cut off allowing the movie to fit on your screen and are not displayed how the director originally intended it to be viewed.
3. Fullscreen, Inc., a media company founded in January 2011 by George Strompolos that helps YouTube creators with tools, optimization services, and consultation in finding an audience. On September 22, 2014, Fullscreen, Inc. became a subsidiary of Otter Media.
4. On Google Chromebook keyboards, there is a fullscreen key. Its identifying icon is a box with an arrow in the top left and bottom right corners, similar to the image at right. Pressing this key makes the browser, usually Google Chrome, toggle its full screen mode.
Tip: On non-Chromebook computers, the fullscreen key is typically the F11 function key to get into and out of fullscreen mode.