Liquid crystal display device and driving method thereof

摘要

Provided is a liquid crystal display device, including a first and second substrates, the second substrate including data signal lines, gate signal lines, pixel electrodes, a plurality of common electrodes that extend in one of a column direction and a row direction, and a plurality of shield electrodes overlapping at least one of the data signal lines or the gate signal lines, the plurality of common electrodes including a first common electrode to which a first voltage is supplied and a second common electrode to which a second voltage is supplied, the first common electrode and the second common electrode being alternately arranged in one of the row direction and the column direction, in which, in plan view, each of the plurality of shield electrodes is formed to overlap at least a gap formed between the first common electrode and the second common electrode that are adjacent to each other.

主权项

1. A liquid crystal display device, comprising a first substrate on a display surface side and a second substrate on a rear surface side, which are arranged so as to be opposed to each other via liquid crystal,
the second substrate comprising a plurality of data signal lines, a plurality of gate signal lines, a plurality of pixels arrayed in a row direction and a column direction, a plurality of pixel electrodes formed individually so as to correspond to the plurality of pixels, respectively, a plurality of common electrodes, formed in a layer that is between a layer in which the liquid crystal is present and respective layers in which the data signal lines and the gate signal lines are present, that extend in one of the column direction and the row direction and are arranged so as to be opposed to the plurality of pixel electrodes, and a plurality of shield electrodes, each of the shield electrodes overlapping, through intermediation of an insulating film, at least one of a respective one of the plurality of data signal lines and a respective one of the plurality of gate signal lines, the shield electrodes being formed in a layer between the layer in which the common electrodes are present and the layer in which the liquid crystal is present, the plurality of common electrodes comprising a first common electrode to which a first voltage is supplied and a second common electrode to which a second voltage different from the first voltage is supplied, the first common electrode and the second common electrode being alternately arranged in one of the row direction and the column direction, wherein, in plan view, each of the plurality of shield electrodes is formed to overlap at least a gap formed between a respective pair of the first common electrode and the second common electrode that are adjacent to each other in the same layer without an intervening electrode between the first and second common electrodes of the pair, when the plurality of shield electrodes overlap the plurality of data signal lines, the plurality of the shield electrodes are disposed between the liquid crystal and the plurality of data signal lines in plan view, when the plurality of shield electrodes overlap the plurality of gate signal lines, the plurality of the shield electrodes are disposed between the liquid crystal and the plurality of gate signal lines in plan view, and wherein the second substrate comprises the plurality of gate signal lines, a gate insulating film, the plurality of data signal lines, an organic insulating film, an interlayer insulating film, the plurality of common electrodes, an interlayer insulating film, and the plurality of pixel electrodes and the plurality of shield electrodes formed in the same layer, which are laminated in the stated order from a glass substrate side.