Japan Display Inc.

Panasonic Liquid Crystal Display Co., Ltd.

Hitachi Displays, Ltd.

Saori Sugiyama

Masateru Morimoto

Takao Sato

Yuji Maede

Motoharu Miyamoto

Hiroaki Komatsu

Takanori Nakayama

Yuki Kuramoto

Hiroyuki Abe

Jin Hirosawa

Arihiro Takeda

Yasuyuki Yamada

Tomokazu Ishikawa

Hiroaki Asuma

Atsuko Oono

Susumu Edo

Satoru Kawasaki

Yasuko Gotoh

Jiro Taniguchi

Eiichirou Itou

The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.

Liquid crystal display device

Red pixels (R), blue pixels (B) and green pixels (G) are formed in parallel. First columnar spacersand second columnar spacersare formed on a first substrate. The distance between the first substrate and a second substrate in a normal state is determined by the first columnar spacers. The diameter of a light blocking film corresponding to each first columnar spaceris greater than the diameter of a light blocking film corresponding to each second columnar spacer. The first columnar spaceris not formed at a boundary between a green pixel (G) and a red pixel (R) or a boundary between a green pixel (G) and a blue pixel (B). The second columnar spaceris formed at a boundary between pixels irrespective of the pixel color. Thus, appropriate color balance can be attained with ease without having a drop in the luminance.

A liquid crystal display device in which smear error is suppressed and transmittance is uniform is provided. In a liquid crystal display device which includes a plurality of pixels and uses comb-teeth-shaped transparent conductive filmsas common wirings, the common wirings include mesh-shaped common metal wiringsandextending in a vertical direction and a horizontal direction and the comb-teeth-shaped transparent conductive filmsare connected between adjacent pixels.

To provide a liquid crystal display device capable of controlling deterioration of contrast even in the case where an opening is formed in an organic flattened film and the film has unevenness. In the liquid crystal display device that includes a TFT substrate, a CF substrate, and liquid crystal sandwiched between the TFT substrate and the CF substrate and that drives the liquid crystal with a lateral electric field, the TFT substrate has the organic flattened film in which a through hole for contacting a source electrode of the TFT and a pixel electrode and a sectional shape of the through hole is asymmetrical between a side on which the pixel electrode extends and the other side.

A liquid crystal display device having 2-pixel multi-domain type pixels, in which columnar spacers are disposed in optimal positions. Each of plural video lines has a first portion in which an acute-angled crossing angle of two crossing angles crossing each of scanning lines becomes a positive angle in a clockwise direction from each of the scanning lines, and a second portion in which an acute-angled crossing angle of the two crossing angles crossing each of scanning lines becomes a negative angle in the clockwise direction from each of the scanning lines. The first and second portions are alternately disposed so as to hold the scanning line between them.

A liquid crystal display device includes: a TFT substrate including a TFT, an organic passivation film formed to cover the TFT, and an alignment film; and a counter substrate including a spacer and an alignment film. The TFT substrate and the counter substrate are bonded with a sealing material in a seal portion, with a liquid crystal interposed between the two substrates. A wall-like structure is formed in the seal portion of the counter substrate, in a direction parallel to a side of the counter substrate. A concave portion of the organic passivation film is formed at a position corresponding to the wall-like structure of the TFT substrate, in a direction parallel to the side of the TFT substrate. With this structure, a gap between the wall-like structure and the TFT substrate is increased to facilitate the movement of the sealing material before curing, to form the sealing material uniformly.

A display device substrate includes a transparent substrate arranged in parallel with a face on which an image is displayed and a light-shielding film partially formed on the transparent substrate for shielding light. The light-shielding film has, at a portion of the transparent substrate along an edge thereof on at least one side, a low light-shielding portion having a lower light-shielding capability. The low light-shielding portion is formed with a smaller thickness than that of the other portion in the light-shielding film. With this configuration, even when, in a gang printing display panel in which a plurality of display panels each having the display device substrate are arranged, the light-shielding films of the display panels adjacent to each other are formed continuously, cutting can be performed more easily at a position to be cut.

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Tokyo, Japan

Saori Sugiyama