Abstract: A sound insulation plate includes a patterned frame and an elastic membrane, wherein the patterned frame includes a central pattern region and multiple peripheral pattern regions arranged around the central pattern region, the multiple peripheral pattern regions being separated from the central pattern region by a separation bar, and wherein the elastic membrane is mounted on the patterned frame to block passage of air and converts airborne sound waves into elastic waves.

Abstract: Disclosed herein is a sound insulation panel which is easy to manufacture and has a light weight. The sound insulation panel includes: a patterned plate comprising an edge plate and a separation plate extending into an inner region of the edge plate and dividing the inner region into a first elastic region and a second elastic region; and an elastic plate protruding from the patterned plate to be stepped with respect to the patterned plate and including a first elastic plate disposed in the first elastic region and a second elastic plate disposed in the second elastic region, the elastic plate blocking an air flow path and converting airborne sound waves into elastic waves, wherein the first elastic plate and the second elastic plate are displaced in opposite directions at a resonant frequency of the sound insulation panel.

Abstract: A sound insulation plate includes a patterned frame and an elastic membrane, wherein the patterned frame includes a central pattern region and multiple peripheral pattern regions arranged around the central pattern region, the multiple peripheral pattern regions being separated from the central pattern region by a separation bar, and wherein the elastic membrane is mounted on the patterned frame to block passage of air and converts airborne sound waves into elastic waves.