An active matrix substrate (30) comprises a plurality of functional lines (31) each including a center line (36) exhibiting conductivity at least on the surface, an insulation layer (37) covering the surface of the center line, and a semiconductor layer (38) covering the insulation layer, a structure for fixing the mutual arrangement of the plurality of functional lines, and first and second conductive layers (43, 42) each having a part superposing on the respective semiconductor layers of the plurality of functional lines and a part not superposing on the respective semiconductor layers of the plurality of functional lines. The active matrix substrate (30) further comprises a plurality of transistors (32) included in the respective semiconductor layers as regions (44) defined by the first and second conductive layers, and a plurality of pixel electrodes (33) connected electrically with respective first conductive layers (43).
