A wall electrode IPS mode LCD has stabilized domain boundary. Signal and scanning lines extend in first and second directions, respectively, surrounding a pixel. A first wall structure has a first portion intersecting the first direction at a first angle, a second portion in the first direction, and a third portion intersecting the first direction at a second angle. The second portion has a first projection in the second direction. The second wall structure has a fourth portion intersecting the first direction at the first angle, a fifth portion in the first direction, and a sixth portion intersecting the first direction at the second angle. The fifth portion has a second projection in the second direction. A distance between the first projection and the fifth portion is shorter than a distance between the first wall structure except the first projection and the second wall structure.