split screen

plural split screens · alternative splitscreen

1. uncountableA display technique that consists of subdividing graphics that appear on a screen into adjacent areas or subwindows.
2. countableAn instance of using this technique on a screen display.

comparative more split screen · superlative most split screen · alternative splitscreen

1. figurativelyDividing one's attention between two events unfolding simultaneously.

   But the split-screen nature of this moment in his presidency was underscored when Mr. Trump devoted the first nine minutes of his speech to the killing of George Floyd in Minneapolis and the subsequent protests and riots unfolding in cities across the country.

   2020 May 30, Peter Baker, “Trump Hopes for His Own Booster Shot From SpaceX Rocket Launch”, in The New York Times, retrieved 30 May 2020