Industry and academia have been making great ef-forts in improving refresh rates and resolutions of display de-vices to meet the ever increasing needs of consumers for better visual quality.As a result,many modern displays have spatial and temporal resolutions far beyond the discern capability of human visual systems.Thus,leading to the possibility of using those display-eye redundancies for innovative usages.Tempo-ral/spatial psycho-visual modulation(TPVM/SPVM)was pro-posed to exploit those redundancies to generate multiple visual percepts for different viewers or to transmit non-visual data to computing devices without affecting normal viewing.This pa-per reviews the STPVM technology from both conceptual and algorithmic perspectives,with exemplary applications in multi-view display,display with visible light communication,etc.Some possible future research directions are also identified.