Flat Display Mounting Interface

The Flat Display Mounting Interface (FDMI), also known as VESA Mounting Interface Standard (MIS) or colloquially as VESA mount, is a family of standards defined by the Video Electronics Standards Association for mounting flat panel monitors, TVs, and other displays to stands or wall mounts.[1] It is implemented on most modern flat-panel monitors and TVs.

http://en.wikipedia.org/wiki/Flat_Display_Mounting_Interface