This is the 17071st most frequent Polish word.
wyświetlał
"Wyświetlał" means "he/she/it was displaying" or "was showing."
In this sentence, 'wyświetlał' is used in the context of a computer screen showing information.
Komputer wyświetlał wyniki testu na ekranie.
The computer displayed the test results on the screen.
Here, 'wyświetlał' refers to the projector presenting an image or a motion picture.
Film był ciekawy, podczas gdy projektor wyświetlał obraz bardzo wyraźnie.
The movie was interesting, while the projector displayed the image very clearly.
In this sentence, 'wyświetlał' is used to describe showing visual aids for explanation in an academic setting.