Patent ID: 7703251

Claim:
A 3-dimensional decorative panel made of a polystyrene foam ( 20 ) having light weight and good workability, the 3-dimensional decorative panel comprising: a drain groove ( 22 ) formed on a side of the polystyrene foam ( 20 ) for draining a rainwater; and a metal plate ( 10 ) coupled to a rear surface of the polystyrene foam ( 20 ), the metal plate having a plurality of bent portions ( 11 ), and a reinforcing core ( 12 ) being attached to the metal plate ( 10 ); in which a polygarde ( 30 ), silicon ( 31 ), a polygarde ( 30 ), a primer ( 32 ), and a colored layer ( 33 ) are sequentially layered on a surface of the polystyrene foam ( 20 ) in order to enhance a durability of the polystyrene foam ( 20 ), wherein the reinforcing core ( 12 ) is provided with a plurality of locking holes ( 14 ) in an axial direction, and a locking head of a resilient sleeve ( 15 ) is fixed to the locking hole ( 14 ) to install the panel to a wall, in which the locking head is divided into two parts.