High Quality Content by WIKIPEDIA articles! The pillarbox effect occurs in widescreen video displays when black bars are placed on the sides of the image. It becomes necessary when film or video that was not originally designed for widescreen is shown on a widescreen display, or a narrower widescreen image is displayed within a wider aspect ratio, such as a 1.85:1 image in a 2.35:1 frame. The original material is shrunk and placed in the middle of the widescreen frame. Some older arcade games that had a tall vertical and short horizontal are displayed in pillar box even on 4:3 televisions. Some early sound films made 1928–1931, such as City Lights, were filmed in an even narrower format to make room for the sound-on-film track on then-standard film stock. These will appear pillarboxed even on 4:3 screens.

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