In an active matrix substrate for allowing a point defect of a defect
pixel portion, among a plurality of pixel portions arranged
two-dimensionally, to be repaired by radiation of energy, the active
matrix substrate includes one of a first protection member for absorbing
excessive energy power and preventing pieces of a conductive material
from being scattered; and a second protection member for preventing
pieces of a conductive material from being scattered and for preventing a
conductive layer from bulging. One of the first protection member and the
second protection member is provided above at least one energy radiation
portion.