US Patent 10323819 LED display screen covers and LED displays

A screen cover includes a screen cover body including an array of cover units arranged in multiple rows and multiple columns, each cover unit configured to be positioned over a respective LED lamp of an array of LED pixel units. Each cover unit has a shaped outer surface with edges, including an edge in common with an adjacent cover unit in a same row and an edge in common with an adjacent cover unit in a same column, such that the outer surfaces of the cover units along the columns and rows together form a continuous outer cover surface.