Hitachi, Ltd.

Yoshihiro Nozaki

Naofumi Aoyama

Isao Yamazaki

Toru Watanabe

Shigeru Matsuoka

Keiji Kamio

Kouichi Saito

Yuzi Suganuma

Yoshihiro Kashiwa

Seizi Nogami

Hidechika Kigoshi

Kiyoshige Kinugawa

Hiroshi Sakurada

A portable wordprocessor has a main body and a display support assembly hinged to the main body. The main body has an information entry keyboard, a function keyboard, a control circuit board and a floppy disk drive. The information entry keyboard and the function keyboard have key tops the heights of which do not exceed the height of the portion of the main body which accommodates the floppy disk drive. The information entry keyboard is disposed along the front edge of the main body, while the function keyboard is disposed between the information entry keyboard and the rear edge of the main body. The floppy disk drive is disposed in lateral alignment with the function keyboard. The display support assembly supports a liquid crystal display device which includes a liquid crystal display portion and a liquid crystal control circuit board which is disposed around the liquid crystal display portion and has a thickness which does not exceed the thickness of the liquid crystal display portion.

Portable information processing apparatus and liquid crystal display

A method is disclosed for driving a liquid crystal display provided, in the same liquid crystal panel, with a dot matrix display part and a fixed pattern or segment display part. The dot matrix display part is driven in a time-multiplexed fashion, while the fixed pattern or segment display part is driven in a static fashion using driving voltage waveforms in common with the dot matrix display part.

Method for driving and liquid crystal display device including dot

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Chiba, Japan

Yoshihiro Nozaki