Liquid crystal display device

A liquid crystal display device comprising:

• a pair of polarizing plates placed so that their transmission axes are orthogonal to each other;
• and
• a plurality of pixels provided between the pair of polarizing plates,
• wherein each of the plurality of pixels has a first electrode, a second electrode facing the first electrode, a vertical alignment liquid crystal layer placed between the first and second electrodes, and ribs placed in a surface portion of the liquid crystal layer close to the first electrode and/or a surface portion thereof close to the second electrode, and
• the ribs extend in a direction roughly 45° with respect to the transmission axis of one of the pair of polarizing plates, have slope side faces put in contact with the liquid crystal layer, and satisfy the relationships RL/PS≧0.05 (μm−1) and RS/PS≦0.05 where RS is a product (RL·RH) of a total length RL of the side faces in a pixel as viewed from the normal to the liquid crystal layer and a height RH of the ribs, and PS is a pixel area.