Display lag is the delay between a console producing output and a television displaying said output. In most cases, it is caused by high-resolution televisions imposing additional processing on the visual data it receives in order to make it look better. While this feature is useful for non-interactive applications, such as video playback and technical demos, it goes against the real-time nature a majority of games require, thus resulting in the illusion that there is an in-game delay between input and action.