Hitachi, Ltd.

Other

Hitachi Consumer Electronics Co., Ltd.

Hitachi, Ltd., and Hitachi Video and Information Systems, Inc.

Seiichi Sekiguchi

Atsushi Ishibashi

Shigehisa Hagura

Masahiko Yatsu

Nobuyuki Kaku

Yasuo Otsuka

Takeshi Hoshino

Takesuke Maruyama

Tomohiro Miyoshi

Kenji Fuse

Futoshi Yamasaki

Naohiro Ozawa

Masaharu Deguchi

Takashi Kakuda

Satoshi Ohuchi

Yutaka Matsuda

Makoto Fukatsu

Takuya Shiaki

Mikiharu Kuwata

Koichi Umezawa

Hidetomo Yoshimura

Nobuhiko Konuma

Yutaka Yamada

Kohei Miyoshi

Shinji Matsumoto

Yoshiharu Yamashita

Teppei Tanaka

Yasuhiro Tomita

Yasushi Naito

Yuichi Sugawara

Minoru Ikeda

Yoshihiro Iwama

Takashi Yamamoto

Masahiro Yamamoto

Nobuyuki Isoshima

Yuta Kawaguchi

Machiko Shimizu

Shigetaka Kimura

Mika Ri

To provide a reliable high brightness and definition image display by inhibiting a possible increase in fan noise and promoting cooling of an upper, hot portion of a display panel module, various boards, and image processing electronic components, an image display includes a flat display panel module, a display surface side cover on a display surface side of the display panel module, a non display surface side cover on a non display surface side of the display panel module, a display driving board, a power supply board, and a cooling fan, wherein a case of the cooling fan is larger than a distance between the display panel module and the non display surface side cover in an area where the cooling fan is installed, and a first end of the case of the cooling fan closer to the non display surface-side cover is positioned above a second end of the case closer to the display panel module.

Image display

Projector

A flat panel display apparatus includes a plasma display panel, a power supply substrate, a signal processing substrate, a Y sustaining substrate, and an X sustaining substrate. The power supply substrate, the signal processing substrate, the Y sustaining substrate and the X sustaining substrate are arranged at a back of the plasma display panel. When viewing the plasma display panel from the back, the power supply substrate is arranged at a center portion of the plasma display panel, the Y sustaining substrate is arranged at one of a left and right side of the plasma display panel, the X sustaining substrate is arranged at the other of the left and right side, and the signal processing substrate is arranged under the X sustaining substrate. A circuit substrate other than the power supply substrate, the Y sustaining substrate, and the X sustaining substrate is arranged under the power supply substrate.

Flat panel display

Space is decreased in the direction of thickness on a side of a substrates mounted on a back of a flat panel display to adapt requirement for increasing and thinning its size, and most flat panel displays forcibly radiate heat with a fan provided thereon. The present invention provides a flat panel display having fewer heat radiating fans to secure a channel for causing a heat radiating air to flow. Portions where electronic circuit device on a back of a display panel are mounted are divided into three: left; center; and right portions; with a main frame as a border, the electronic circuit device are constructed of four module substrates, the substrate which is the greatest in heating value in the four module substrates (hereinafter referred to as a substrate) is arranged in the center portion and the substrates which are the smallest and the second smallest in heating value therein are arranged in the same portion.

Television receiver

A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.

Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same

Liquid crystal video projector

Growing community of inventors

Fujisawa, Japan

Seiichi Sekiguchi