Persistence Of Vision Display- A Review

Persistence of vision technology has gained immense popularity in the field of electronics due to its wide range of applications and ease of usage. Persistence of vision (POV) refers to the phenomenon of the human eye in which an afterimage exists for a brief time. A POV display exploits this phenomenon by spinning a one dimensional row of LED's through a two dimensional space at such a high frequency that a three dimensional display is visible. The LED matrix is connected to the Raspberry Pi, which is fast & programmable credit card sized computer. The display is user-friendly when interfaced with a touch pad compatible with the Raspberry Pi. The touch pad ensures that no programming has to be done at a user level and so the device gives rise to a very new, hassle-free type of display devices.