Stuck/dead pixels are usually individual pixels or in small clusters, and it has to do with faulty film in the LCD panel preventing electrical charge to polarize (twist, or whatever the technology might be used in the display in question) layers that let the light trough.
If it's going edge to edge you most likely have a problem with connection between your panel and underlying electronics. It can mostly be repaired by reflowing the flat cable connecting the panel with monitor interface. It will probably surface again within few weeks or months, so it's just a temporary fix unless it's done by hardcore professionals, but it would end up costing more than a new monitor.