LIQUID CRYSTAL DISPLAY DEVICE

摘要

Provided is a liquid crystal display device having excellent viewing angle characteristics and high contrast in a display mode using both a vertical electric field and a horizontal electric field. This liquid crystal display device is provided with a first substrate and a second substrate disposed facing each other, and a liquid crystal layer held between said first and second substrates. The liquid crystal layer contains liquid crystal molecules having a negative dielectric anisotropy. The first substrate is provided with a flat plate first electrode, a first insulating layer, and a second electrode provided in a layer other than that of the first electrode and provided separated from the first electrode by the first insulating layer. The second electrode has multiple comb-tooth sections and multiple slits, and the second substrate has a flat plate third electrode. Defining V1 as the potential difference between the first electrode and the third electrode, V2 as the potential difference between the first electrode and the second electrode, and V2—B as the potential difference between the first electrode and the second electrode when the lowest gradation is showed, V1, V2 and V2—B satisfy 0<|V2—B|≦|V2|<|V1|.

主权项

1. A liquid crystal display device, comprising:
a first substrate and a second substrate opposing each other; and a liquid crystal layer sandwiched between the first and second substrates, wherein the liquid crystal layer contains liquid crystal molecules having negative dielectric anisotropy, wherein the first substrate includes a uniformly planar first electrode, a first insulating layer, and a second electrode provided in a different layer from the first electrode across the first insulating layer, wherein the second electrode has a plurality of teeth and a plurality of slits separating the teeth, wherein the second substrate includes a uniformly planar third electrode, and wherein the liquid crystal display device is configured such that V1, V2, and V2—B satisfy the following formula (1) for each of gradation levels being displayed, where a potential between the first electrode and the third electrode is V1, a potential between the first electrode and the second electrode is V2, and a potential between the first electrode and the second electrode at a lowest gradation is V2—B:
0<|V2—B|≦|V2|<|V1|  (1).