Hitachi, Ltd.

Masahito Oh-e

Katsumi Kondo

Masuyuki Ota

Sukekazu Aratani

Shigeru Matsuyama

Tohru Sasaki

Genshiro Kawachi

Makoto Tsumura

Masaaki Kitajima

Kiyoshige Kinugawa

Hiroaki Asuma

Hisao Yokokura

Hiroyuki Kagawa

Yoshiyuki Umeda

An active matrix type liquid crystal display apparatus including a driver having an active element, an electrode structure mainly applying an electric field which is substantially parallel to a substrate surface to a liquid crystal layer, and at least a part of a portion of a signal wiring which opposes the liquid crystal layer transmits a video signal to the active element and is covered by a conductive material via an insulator. The conductive material is electrically connected with a common electrode as one of electrodes of the electrode structure.

Active matrix type liquid crystal system

A liquid crystal display device and system having a liquid crystal composition being interposed between a first and second substrates, a plurality of pixel parts being constructed with a plurality of scanning electrodes and a plurality of signal electrodes arranged in a matrix on one of said first and second substrates, a switching element being provided in each of the pixel parts, wherein the switching element is connected to a pixel electrode, the pixel electrode and a common electrode being so constructed on the one of said first and second substrates as to be operable in keeping the major axes of the liquid crystal molecules parallel to the surface of the substrates. In the pixel part, the signal electrode and the pixel electrode is formed and a shield electrode is formed between the signal electrode and the pixel electrode.

An active matrix type liquid crystal display apparatus, including a pair of substrates and a liquid crystal layer interposed between said pair of substrates. One of the pair of substrates has plural scanning electrodes and plural signal electrodes arranged to cross the plural scanning electrodes. Pixels are formed at regions surrounded by the scanning electrodes and the signal electrodes. Respective ones of the pixels include an active element arranged at a vicinity of the crossing point of the scanning electrode and the signal electrode, a pixel electrode connected to the active element and a common electrode arranged in correspondence to the pixel electrode. Further, there is provided a colored filter and a shielding layer having a specific resistivity of less than 10 &OHgr;.cm.

Active matrix type liquid crystal display apparatus

A liquid crystal display apparatus and a method of manufacturing wherein the liquid crystal display apparatus includes a pair of substrates, a liquid crystal layer interposed between the pair of substrates, plural electrodes formed on at least one of the pair of substrates, a passivation layer formed on the plural electrodes and having concave portions, a thin film having low wettability formed on the passivation layer, and an insulating layer formed on the thin film having low wettability. The method includes the steps of irradiating light onto the thin film through a mask, and applying a solution containing organic high polymers so as to form the insulating layer at the concave portions of the passivation layer.

Liquid crystal display apparatus and a method for manufacturing the same

A liquid crystal display having a wide viewing angle, a large contrast ratio, and little nonuniformity of display, is formed by a pair of substrates, and a liquid crystal layer interposed between the pair of substrates, wherein at least one of the pair of substrates has plural electrodes, a passivation layer formed on the plural electrodes, and an insulating layer formed at concave portions of the passivation layer for making the thickness of the liquid crystal layer uniform.

An active matrix type liquid crystal display system having a plurality of switching elements, the active matrix type liquid crystal display system including a pair of substrates, signal electrode lines and scanning electrode lines formed on one of the pair of the substrates and crossing each other in a matrix form. A plurality of pixels are delimited by the signal electrode lines and the scanning electrode lines and a liquid crystal layer is interposed between the pair of the substrates. Each pixel of the pixels includes an electrode structure for generating an electric field having a component substantially in parallel with one of the substrates upon application of at least one predetermined voltage thereto, and an optical structure for obtaining a voltage vs. brightness characteristic where the voltage to obtain a minimum brightness is greater than zero.

Active matrix type liquid crystal display system and driving method therefor

In an active matrix type liquid crystal display apparatus, respective ones of the electrodes on a substrate are provided so that an electric field substantially parallel to the substrate can be supplied to a liquid crystal layer. Polarizers for changing the optical characteristics based on the alignment of the liquid crystal layer are provided, as well as a shielding layer formed in parallel to the image signal electrodes on the substrate. The specific resistivity of the shielding layer is less than 10.sup.8 .OMEGA..multidot.cm.

Active matrix type liquid crystal display apparatus with a shielding

An active matrix type liquid crystal display system having a liquid crystal composition being interposed between a first and a second substrates, a plurality of pixel parts being constructed with a plurality of scanning electrodes and a plurality of signal electrodes arranged in a matrix, a switching element being provided in each of the pixel parts, wherein the switching element is connected to a pixel electrode, the pixel electrode and a common electrode being so constructed as operable in keeping the major axes of the liquid crystal molecules parallel to the surface of the substrate. In the pixel part, the signal electrode and the pixel electrode is formed and a shield electrode is formed between the signal electrode and the pixel electrode. The system requires no transparent electrode, being excellent in visual angle characteristic, being high in contrast, being small in cross-talk producing probability.

Active matrix type LCD with two shield electrodes

A thin film transistor type liquid crystal display system which is low in power dissipation in brightness, high in image quality without cross-talk. A thin film transistor type liquid crystal display system comprises electrodes for applying electric field nearly in parallel to the surface of a substrate, a liquid crystal composition, element structure for obtaining light state and dark state through polarization means, driving means for output a scanning signal having at least two kinds of non-selective voltage values to scanning electrodes.

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Hitachi, Japan

Masahito Oh-e