Liquid crystal display device
AssigneeHitachi, Ltd.
InventorsKikuo Ono, Ryutaro Oke, Takahiro Ochiai, Hirotaka Imayama
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Abstract
Below a transparent pixel electrode, an opaque pixel electrode is arranged while sandwiching an insulation film between the transparent pixel electrode and the opaque pixel electrode. A common electrode is arranged below the opaque pixel electrode thus forming a holding capacitance between the common electrode and an opaque metal electrode. In case when the pixel is divided into four or more portions, an interval between the pixel electrode and the common electrode is set to an unequal pitch size or an unequal electrode width within one pixel.
Claims14
An active matrix type liquid crystal display device including a liquid crystal layer sandwiched between a transparent first substrate and a transparent second substrate, wherein a plurality of gate lines and a plurality of drain lines which intersect the plurality of gate lines in a matrix array are formed over the first substrate, pixels are formed in respective regions surrounded by the plurality of gate lines and the plurality of drain lines, and each pixel includes a common electrode line, a common electrode, at least one TFT element and a pixel electrode to which a signal from the drain line which is selected in response to a signal from the gate line by the TFT element is electrically supplied,
- wherein the common electrode is formed over the drain line by way of an insulation film, the pixel electrode has a comb-teeth shape and is formed on the same layer as the common electrode, at least one of comb-teeth shaped portions of the pixel electrode has a multi-layered structure, and a holding capacitance is formed by a pixel electrode which constitutes a lower layer of the multi-layered pixel electrodes and the common electrode line layer.
An active matrix type liquid crystal display device including a liquid crystal layer sandwiched between a transparent first substrate and a transparent second substrate, wherein a plurality of gate lines and a plurality of drain lines which intersect the plurality of gate lines in a matrix array are formed over the first substrate, pixels are formed in respective regions surrounded by the plurality of gate lines and the plurality of drain lines, and each pixel includes a common electrode, at least one TFT element and a pixel electrode to which a signal from the drain line which is selected in response to a signal from the gate line by the TFT element is electrically supplied,
- wherein the common electrode and the pixel electrode are formed over the same insulation film, and the pixel further includes a metal electrode which has a portion thereof superposed in a planar manner to a gap formed between the common electrode and the pixel electrode by way of an insulation film, and a potential equal to a potential applied to the common electrode or the pixel electrode is applied to the metal electrode.
Dependencies are inferred from the claim text.