A liquid crystal panel (10) includes an active matrix substrate on which a transistor (12), a pixel electrode (17), signal lines (15, 16) and backup wirings (8a, 8b) for recovering a defect in the signal line are formed; a color filter substrate on which a common electrode (counter electrode) is formed; and a liquid crystal material provided between the active matrix substrate and the color filter substrate. The backup wirings (8a, 8b) are (electrically) connected to the common electrode on the color filter substrate, through (i) a protection circuit (9) for discharging an undesired electric charge that occurs in the backup wirings (8a, 8b) and (ii) a sealing adhesive (6). With this configuration, it becomes possible to reduce problems (for instance, unexpected short-circuiting of the backup wiring and the signal line) caused by the undesired electric charge that occurs in the backup wirings.