Kabushiki Kaisha Toshiba

Masato Shoji

Masato Kemmochi

Nobuko Fukuoka

Hitoshi Hatoh

Akio Murayama

Hoko Hirai

Yasuharu Tanaka

Susumu Kondo

Masahito Ishikawa

Masumi Okamoto

Toshihiro Ninomiya

Norihiro Yoshida

Tsuyoshi Ohyama

An array substrate typically used in a liquid crystal display device includes inter-layer insulating films thick enough to prevent step-off breakage of conductive layers at contact holes while promising a reliability. Thick inter-layer insulating films are made by stacking a film made of an inorganic material, such as silicon nitride or silicon oxide, having a low moisture permeability and thereby promising a reliability of the liquid crystal display device, and a film made of an organic material, such as acrylic resin, that can be readily stacked thick so that the inner wall of the contact hole is gently sloped with respect to the substrate surface to thereby prevent step-off breakage of a conductive layer as thin as 100 nm or less.

Array substrate, liquid crystal display device and their manufacturing method

Array substrate, liquid crystal display device and their manufacturing

In an electooptical liquid crystal device comprising an OCB mode liquid crystal cell and an optically anisotropic element compensating a viewing angle characteristics of the cell, the optically anisotropic element satisfies the elliptical coefficient Z of the index ellipsoid of the optically anisotropic element,

Electrooptical liquid crystal device

In liquid crystal display system 10 which has a matrix arrangement of scanning electrode group 12 and data electrode group 13 and in which each electrode group is driven by a pulse like waveform, this is a liquid crystal display system in which a lower level region than the pulse wave peak value is formed in at least one of the rising or the falling portions of the pulse wave which drives at least one of the electrode groups. A liquid crystal display system with a uniform display with extremely little display non-uniformity can be obtained.

Liquid crystal display system

Growing community of inventors

Fukaya, Japan

Masato Shoji