The length of time a phosphor dot glows on a CRT before disappearing.

(n.) A quality of light, as in a CRT, that influences the way an image is displayed on the screen. If persistence is too long, the image looks smudged; if it is too short, the image flickers.

In video, persistence is the staying power of a lighted phosphor, since a phosphor begins to dim after being excited by the electron beam. A long-persistence phosphor allows the screen to dim more slowly. Long-persistence phosphors are commonly used for CRT projection in 3D applications.

Phosphor characteristic consisting of the ability to emit light after the excitation current of an electron beam is removed.

The time it takes for the visible glow of a CRT's phosphor to darken after the scanning electron beam is removed. A long persistence means less flicker, but may create smearing when images are in motion.