Casio Computer Co., Ltd.

Kanegafuchi Kagaku Kogyo Kabushiki Kaisha

Ortus Technology Co., Ltd.

Casio Computer Co. Ltd. Jp

Yasushi Nakajima

Tetsushi Yoshida

Masakazu Uekita

Takashi Miyashita

Jiro Takei

Shinichi Shimomaki

Hisashi Aoki

Ryota Mizusako

Makoto Murata

Yoshinaga Miyazawa

Minoru Yamaguchi

Masakatsu Higa

Norishige Iwanami

Masamichi Komaki

Toshihiro Mannouji

Hiroko Awata

A liquid crystal display includes a first substrate and a second substrate, a lower display electrode provided on the first substrate, an insulating layer provided on the lower display electrode, an upper display electrode provided on the insulating layer and having a mesh pattern including opening portions, a common electrode provided on the second substrate, and a polymer-dispersed liquid crystal layer sandwiched between the first substrate and the second substrate in a state in which the upper display electrode and the common electrode face each other.

Liquid crystal display

A liquid crystal display device has an opposing substrate on which an opposing electrode is formed, a TFT substrate on which pixel electrodes arranged in matrix, thin film transistors connected to the pixel electrodes respectively, and gate lines and data lines for the thin film transistors are formed, vertical alignment films formed on the opposing inner surfaces of these substrates, and a liquid crystal layer disposed between the vertical alignment films and having negative dielectric anisotropy. Each pixel electrode has a slit formed for separating each pixel into a plurality of sub-pixels by partially eliminating the pixel electrode with a connecting portion left at which adjoining electrode portions of each pixel electrode is connected with each other. The width Wof the pixel electrode that runs in a direction in which the slit is formed and width Wof the connecting portion have a ratio W/Wof 0.13 or lower.

Vertical alignment liquid crystal display device in which a pixel electrode has slits which divide the pixel electrode into electrode portions

An underlying electrode is formed on nearly the entire surface of an opposing substrate and a color filter is formed on the underlying electrode. An overcoat layer is formed on the color filter. A stripe-shaped overlying electrode connected to the underlying electrode and extending to a part of each pixel area is formed on the overcoat layer, and an alignment film is formed on the overlying electrode. Formed on a TFT substrate are TFT's, pixel electrodes and another alignment film which covers the TFT's and pixel electrodes. A liquid crystal is provided between both substrates. When a drive voltage is applied between the underlying electrode and the pixel electrodes, the drive voltage is applied almost directly to the liquid crystal between the overlying electrode and the pixel electrodes, and a drive voltage dropped by the color filter and overcoat layer is applied to the liquid crystal between the underlying electrode and the pixel electrodes. Therefore, a plurality of areas with different alignment states are formed in each pixel and their optical characteristics are averaged, thus widening the view angle.

Liquid crystal display device having a wide view angle

Method for manufacturing liquid crystal orientation film

A liquid crystal shutter comprising a light source, a liquid crystal element including a pair of substrates and liquid crystal interposed between the substrates, a pair of polarizing plates formed on the outer surfaces of the substrates, and a heater for heating the liquid crystal element. At least one electrode is formed on the inner surface of either substrate, and an aligning orientating layer is formed on the electrode and the inner surface of the substrate. The polarizing axis of at least one of the polarizing plates extends either parallel or at right angles to the direction of the optical axis of a substrate having an optical anisotropy caused by a temperature gradient created over the liquid crystal element in a direction toward a periphery from a center of the liquid crystal element heated by the heater, and crossing at a certain degree with an arrangement direction of liquid crystal molecules oriented by the aligning orienting layer.

Liquid crystal shutter with substrates having an optical anisotropy

Growing community of inventors

Hachioji, Japan

Yasushi Nakajima