10 Facts About Display lag

Display lag is a phenomenon associated with most types of liquid crystal displays like smartphones and computers and nearly all types of high-definition televisions.

Display lag is not to be confused with pixel response time, which is the amount of time it takes for a pixel to change from one brightness value to another.

Older analog cathode ray tube technology, display lag is nearly zero, due to the nature of the technology, which does not have the ability to store image data before display.

Anecdotally, display lag is significantly less when displays operate in native resolutions for a given LCD screen and in a progressive scanning mode.

Display lag can be measured using a test device such as the Video Signal Input Lag Tester.

Related searches

The lag time is measured by taking a photograph of the displays running the stopwatch software, then subtracting the two times on the displays in the photograph.

Several approaches to measure display lag have been restarted in slightly changed ways but still reintroduced old problems, that have already been solved by the former mentioned SMTT.

Display lag is most noticeable in games, with different games affecting the perception of delay.

Rhythm-based games, such as Guitar Hero, require exact timing; display lag will create a noticeable offset between the music and the on-screen prompts.

Many televisions, scalers and other consumer-display devices now offer what is often called a "game mode" in which the extensive preprocessing responsible for additional lag is specifically sacrificed to decrease, but not eliminate, latency.