Patent ID: 8134669

Claim:
A liquid crystal display device comprising: a first substrate on which a picture element electrode is provided for each picture element; a second substrate placed to face the first substrate, the second substrate having a common electrode provided thereon; alignment control films respectively covering surfaces of the picture element electrode and the common electrode; and alignment control structures for controlling directions of alignment of liquid crystal molecules, the alignment control structures being provided on at least one of the first and second substrates, wherein the alignment control structures are first slits provided in the picture element electrode and protrusions provided on the common electrode, a distance between at least one first slit and at least one protrusion being 10 to 25 μm, the first substrate is subjected to alignment treatment in only regions substantially directly facing the protrusions, and when a voltage applied to the picture element electrode changes from a first voltage to a second voltage, transmittance increases to maximum transmittance with a change in a state of alignment of liquid crystal molecules and then decreases to transmittance in a stable state corresponding to the second voltage.