Hitachi, Ltd.

Hiroshi Ohkawara

Takeshi Tanaka

Tetsuya Kawamura

Takanori Nakayama

Tatsuo Kamei

Masataka Natori

Hikaru Itoh

Hidetaka Hakoda

A liquid crystal display device includes first and second gate signal line formed on a first insulating substrate and arranged adjacent to one another, a terminal electrically connected to the first gate signal line, first and second thin-film transistors, a first pixel electrode electrically connected to an electrode of the first thin-film transistor, a second pixel electrode electrically connected to an electrode of the second thin-film transistor, a first and second video signal lines, a second insulating substrate which is transparent and superposed on the first insulating substrate, a transparent common electrode, and liquid crystals provided between the common electrode and the first and second pixel electrodes. A first light-shielding film is formed on the second insulating substrate and covers peripheries of the first and second pixel electrodes, and second light-shielding films are formed on the first insulating substrate.

LIQUID CRYSTAL DISPLAY DEVICE HAVING A PATTERN VARYING THE OVERLAP OF A LIGHT-SHIELD FILM CONNECTED TO THE NEIGHBORING GATE LINE AND THE PIXEL ELECTRODE TO IMPROVE VOLTAGE DIFFERENCE BETWEEN DIFFERENT PIXEL ELECTRODES

A liquid crystal display device has gate signal lines extending in the x-direction and arranged in the y-direction, and drain signal lines extending in the y-direction and arranged in the x-direction on the surface of the liquid crystal side of the one transparent substrate between a pair of transparent substrates opposed to each other via liquid crystals. A thin-film transistor is fumed on by a scanning signal from a gate signal line, and a pixel electrode will be supplied with a video signal from the drain signal line via the thin-film transistor that is fumed on in each of the regions surrounded by the signal lines. The thin-film transistor is of the MIS type, and the capacity between the gate electrode and the source electrode thereof is small on the input terminal side of the gate signal line and increases in a direction toward the end of the gate signal line, thereby to suppress the occurrence of flickering.

Having a pattern for improving voltage difference between different pixel electrodes in which semiconductive or signal line portion is larger for a more remote pixel

Growing community of inventors

Mobara, Japan

Hiroshi Ohkawara