Patent ID: 7242442

Claim:
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, wherein 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, wherein: one of the first protection member and the second protection member is provided above at least one energy radiation portion, each of the plurality of pixel portions includes a switching device and a pixel electrode, and the switching device includes a first driving region connected to a signal line and a second driving region connected to the pixel electrode, the energy radiation portion is a portion to be melted; and in the energy radiation portion, a first layer and a second layer partially overlap each other with an insulating layer interposed therebetween, the first layer being formed of a semiconductor layer including the second driving region of the switching device or a conductive layer connected to the semiconductor layer, and a second layer being formed of a conductive or semiconductor layer connected to the signal line.