Application Advances in Display Technology Field of Long Persistent Phosphor

Long persistent materials are unique optical materials capable of emitting light continuously even after the light source is turned off. Over the past few decades, long afterglow materials with unique delayed luminescence properties have garnered extensive attention across various fields, particularly in the domain of display technology. Depending on the intended purpose and requirements, persistent luminescence (PersL) displays can be categorized into five main types: low-light illumination, landscape decoration, multi-color and multi-mode dynamic display for anticounterfeiting, alternating current light-emitting diodes display applications, and optical high-resolution imaging display technologies for data storage and medical diagnosis. In this review, we focus on recent advancements in display technology that leverage the remarkable delayed luminescence properties of PersL materials to design low-power consumption and multi-color dynamic displays. We delve into various approaches for the design of persistent materials and the construction of display devices, while also analyzing existing challenges, future prospects, and potential development directions for PersL-based display techniques.