how to repair half screen Toshiba T2130cs Laptop
open laptop monitor
unscreew 2 screws on front ( below ) , their hidden under a plastic just where the monitor is connect to laptop
from bottom remove the plastic case of monitor
unscrew the lcd ( 4 screws )
on the back of the lcd there's 2 connectors, one for each part of lcd ( top/bellow) , press the connectors firmly
that's it.. probably your laptop just dropped and the connector disconnected.
if lcd bellow is working that solution is this one, have fun