Canon Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Masaru Kamio

Nobuyuki Sekimura

Hideaki Takao

Tatsuo Murata

Yasue Sato

Miki Tamura

Hiroyuki Tokunaga

Haruo Tomono

Yuji Matsuo

Hisanori Tsuda

Kazuyuki Seino

Hiromasa Mitani

Junichiro Kanbe

Toshiyuki Komatsu

Ihachiro Gofuku

Masaki Fukaya

Tatsumi Shoji

Yoshiki Kikuchi

Taiko Motoi

Takashi Nishimura

Yoshiyuki Shimada

Shigetoshi Sugawa

Koichi Sato

Akira Tsuboyama

Mamoru Miyawaki

Toshihiko Takeda

Keisuke Yamamoto

Masataka Yamashita

Eiji Sakamoto

Hidetoshi Tsuzuki

Hitoshi Oda

Hideshi Kawasaki

Kazuhiro Jindai

Teruhiko Furushima

Moriyuki Okamura

Yutaka Genchi

Shinjiro Okada

Katsumi Nakagawa

Yutaka Inaba

Shunsuke Inoue

Kazunori Katakura

Akio Yoshida

Osamu Hamamoto

Masaki Kuribayashi

Satoshi Yoshihara

Junichi Hoshi

Yukitoshi Ohkubo

Hirofumi Iwamoto

Yoshihiko Fukumoto

Shigeharu Iijima

Yuko Yokoyama

Shinichi Seitoh

Koujiro Yokono

Tomoko Narusawa

Yasutsugu Ogura

An image display device includes a sealed container having an interior which is maintained at a lower pressure than an atmospheric pressure, a phosphor disposed in the interior of the sealed container, an electron-emitting device disposed in the interior of the sealed container, to emit an electron to the phosphor, and a getter disposed in the interior of the sealed container. In addition, an exhaust pipe is in communication with the interior of the sealed container, and bellows connects the exhaust pipe to the sealed container. The exhaust pipe has, inside thereof, a breakable vacuum isolating member formed from glass film.

Image display device having a sealed container with an exhaust pipe

An image display apparatus is provided with a vacuum chamber consisting of an electron source substrate and an image display substrate, and an ion pump which is attached to an electron-emitting substrate or the image display substrate and exhausts air from the vacuum chamber by the action of a magnet, wherein the magnet is attached and fixed to the substrate to which the ion pump has been attached. Thereby, the image display apparatus prevents the magnet from applying an excessive force to the ion pump by its weight, and acquires a stable structure without causing a vacuum leak.

Image display device having an ion pump with reduced leakage

In an image display apparatus composed of a vacuum container having an electron source composed of multiple electron-emitting devices and a phosphor film that is irradiated with an electron from the electron source to emit light for display, an ion pump for exhausting the vacuum container through a communicating path by virtue of an action of a magnetism forming portion is arranged. A magnetic shielding member is arranged in a space where the ion pump and the electron-emitting devices are in communication with each other, whereby an influence of a magnetic field generated by the magnetism forming portion on the trajectory of an electron emitted from any one of the electron-emitting devices and display luminance unevenness incidental to the influence are removed.

Image display apparatus having ion pump and electron-emitting devices in communication via mesh or stripe shaped member

An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.

Image display apparatus with particular ion pump location

It is an object of the present invention to provide an image display apparatus in which the change over time of its electron source characteristics is small, and in which uneven brightness and color shift of an image is almost unnoticeable. To achieve this object, the present invention is directed to an image display apparatus containing an electron source substrate having a plurality of electron-emitting devices arrayed thereon, an image forming substrate arranged so as to face the electron source substrate and having a phosphor film and an anode electrode film, and magnetic field generating means, wherein a component parallel to the electron source substrate of a magnetic flux density of a magnetic field generated by the magnetic field generating means is not greater than 0.01 Tesla at any location of the electron-emitting devices.

Image display apparatus having ION pump including permanent magnet

A gas measuring method performs a gas measurement inside a sealed container provided with a pair of plates and an exhaust pipe having a breakable vacuum isolating member on at least one of the plates. The method includes the steps of connecting the sealed container to a gas measuring apparatus through the exhaust pipe, and breaking the breakable vacuum isolating member.

Gas measuring method inside a sealed container

Provided is an image display apparatus, including: a vacuum container which includes an electron source and an anode electrode opposed to the electron source; and an ion pump arranged so as to communicate through the vacuum container, in which: an ion pump container is composed of a non-electroconductive material; and an electroconductive film is formed on an external surface of the vacuum container on a side on which the ion pump container is mounted or on an internal surface of the ion pump container. The image display apparatus achieves: a reduction in weight of the ion pump; an improvement in compatibility to the vacuum container; and the prevention of an adverse effect of discharge inside the ion pump on image display.

Image display apparatus provided with an ion pump assembly arranged within an external container

Provided is an image display apparatus including: a vacuum container having an electron source enclosed therein for displaying an image; an ion pump communicating with the vacuum container for discharging air therefrom and decreasing pressure therein; and a resistor connected in series with the ion pump with respect to a power supply for driving the ion pump. Even if internal resistance of the ion pump undergoes order-of-magnitude changes according to its operating state, current consumption can be suppressed and the ion pump can be driven efficiently.

Image display apparatus

This invention provides an electron source manufacturing apparatus which can be easily downsized and operated. The electron source manufacturing apparatus includes a support member for supporting a substrate () having a conductor (), a vessel () which has a gas inlet port () and a gas exhaust port () and covers a partial region of the surface of the substrate (); a gas inlet unit () connected to the gas inlet port () to introduce gas into the vessel, an exhaust unit () connected to the gas exhaust port to evacuate the interior of the vessel, and a voltage application unit () for applying a voltage to the conductor.

Manufacturing method of an image forming apparatus

In order to be capable of high-precision gas measurement and evaluating influences of a gas on an electron source, and to predict a life of an image display device with high precision for a short period of time, there is provided a sealed container which is capable of maintaining an inside thereof to a lower pressure than an atmospheric pressure, and is used for an image display device including in the inside: a phosphor; an electron-emitting device for causing the phosphor to emit light; and a getter, the sealed container including an exhaust pipe having a breakable vacuum isolating member on at least one side of the image display device. Accordingly, after the exhaust pipe is connected to a gas measuring apparatus, by vacuum-exhausting the gas measuring apparatus and breaking the breakable vacuum isolating member, it is possible to perform a gas measurement on the image display device by using a measuring chamber having an orifice having a known conductance and installed in part of an exhaust channel of the gas measuring apparatus for vacuum-exhausting the image display device.

Sealed container, manufacturing method therefor, gas measuring method, and gas measuring apparatus

This invention provides an electron source manufacturing apparatus which can be easily downsized and operated. The electron source manufacturing apparatus includes a support member for supporting a substrate ( ) having a conductor ( ), a vessel ( ) which has a gas inlet port ( ) and a gas exhaust port ( ) and covers a partial region of the surface of the substrate ( ); a gas inlet unit ( ) connected to the gas inlet port ( ) to introduce gas into the vessel, an exhaust unit ( ) connected to the gas exhaust port to evacuate the interior of the vessel, and a voltage application unit ( ) for applying a voltage to the conductor.

Apparatus for producing electron source

An electrode plate is constituted by a substrate, a plurality of metal electrodes formed with gaps therebetween in a prescribed pattern on the substrate, and a resin filling the gaps. The substrate is provided with an elongated projection disposed in a peripheral region thereof. The elongated projection formed on the substrate is effective in preventing the resin from flowing out from the sides of the substrate, thus suppressing an insufficient filling portion in the gaps between the metal electrode to provide a uniform and smooth surface of the resin and the metal electrode in combination.

Electrode plate, process for producing the plate, liquid crystal device including same and process for producing the device

A liquid crystal device is constituted by a pair of electrode plates and a liquid crystal composition disposed between the electrode plates. At least one of the electrode plates comprises a light-transmissive substrate, a plurality of electrodes including principal electrodes and auxiliary electrodes supported on the light-transmissive substrate, and an insulating layer. Each auxiliary electrode is disposed between an associated principal electrode and the light-transmissive substrate so as to be electrically connected with at least a part of the associated principal electrode, and the auxiliary electrodes being disposed with spacings therebetween which are filled with the insulating layer. The liquid crystal composition comprises at least one species of a fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, and having smectic mesophase or latent smectic mesophase. The combination of the above specific cell structure and the specific liquid crystal composition is effective in improving display quality (e.g., contrast) while minimizing a voltage waveform deformation.

Liquid crystal device and liquid crystal apparatus

A liquid crystal device is constituted by a pair of electrode plates and a liquid crystal composition disposed between the electrode plates. One of the electrode plates comprises a light-transmissive substrate, a plurality of electrodes including principal electrodes and auxiliary electrodes supported on the light-transmissive substrate, a plurality of color filters disposed on the light-transmissive substrate and an insulating layer disposed on the color filters. Each auxiliary electrode is disposed between an associated principal electrode and the light-transmissive substrate so as to be electrically connected with at least a part of the associated principal electrode, and the auxiliary electrodes are disposed with spacings therebetween which are filled with the color filters and the insulating layer. The liquid crystal composition comprises at least one species of a fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, and having smectic mesophase or latent smectic mesophase. The combination of the above specific cell structure and the specific liquid crystal composition is effective in improving display qualities (e.g., brightness and contrast) while minimizing a voltage waveform deformation.

Liquid crystal device and production process thereof

An electrode plate for a liquid crystal device is constituted by a light-transmissive substrate, a plurality of metal electrodes disposed on the light-transmissive substrate with a spacing therebetween, an insulating layer disposed at the spacing, and a plurality of transparent electrodes disposed on the insulating layer and each electrically connected with an associated metal electrode at a first end portion thereof. The first end portion of the transparent electrode is located closer to the light-transmissive substrate than an adjacent end portion of an adjacent transparent electrode. The electrode plate is effective in providing a liquid crystal device with a wider optical modulation region while improving image qualities.

Electrode plate, process for producing the plate, liquid crystal device

Growing community of inventors

Kanagawa, Japan

Masaru Kamio