Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hiroyosi Tanaka

Yoshiki Sasaki

Junichi Hibino

Masafumi Ookawa

Ryuichi Murai

Akira Shiokawa

Yuusuke Takada

Hideaki Yasui

Nobuaki Nagao

Hiroyuki Yonehara

Katuyoshi Yamashita

Nobuyuki Kirihara

Kazuo Ootani

Choujurou Yamamitsu

Hidetaka Hiagshino

Kazuhiko Sugimoto

Keisuke Sumida

Shinya Fujiwara

Yoshinao Ooe

Koichi Kotera

Hideki Marunaka

Hideki Asida

Hiroki Kono

Tadashi Nakagawa

Masaki Aoki

Hiroyuki Kado

Masatoshi Kudoh

Disclosed are an electron emission thin-film with improved secondary electron emission characteristics compared with conventional ones, a plasma display panel including the electron emission thin-film, and their manufacturing methods. Using a vacuum deposition system, a protective layer that is an MgO thin-film is formed on a dielectric layer formed on a front glass substrate. At the time of deposition, angles that lines linking the central point of a target material for the protective layer respectively with the central point and both ends points of the front glass substrate form with the front glass substrate are exclusively in a range of 30 to 80&#xb0;. This enables at least some of MgO columnar crystals constituting the protective layer to have flat planes that are inclined with respect to the surface of the thin-film.

Electron emission thin-film, plasma display panel and methods for manufacturing

An electron emission thin-film with improved secondary electron emission characteristics compared with conventional ones, a plasma display panel including the electron emission thin-film, and their manufacturing methods. Using a vacuum deposition system, a protective layer that is an MgO thin-film is formed on a dielectric layer formed on a front glass substrate. At the time of deposition, angles that lines linking the central point of a target material for the protective layer respectively with the central point and both ends points of the front glass substrate form with the front glass substrate are exclusively in a range of 30 to 80 &#xb0;. This enables at least some of MgO columnar crystals constituting the protective layer to have flat planes that are inclined with respect to the surface of the thinfilm.

Electron emission thin-film, plasma display panel comprising it and method of manufacturing them

A manufacturing apparatus for a PDP includes a unit for forming a protective layer protecting a dielectric layer on a first plate, a unit for baking a phosphor layer applied on a second plate, a unit for sealing the first and second plates arranged so that the protective layer faces the phosphor layer, and a unit for baking the first and second plates while exhausting a space between them. The four units are placed in one or more closed chamber. When the apparatus is driven, spaces in and between the closed chambers each contain a gas atmosphere with vapor partial pressure of 10 mPa or lower, or with a pressure of 1 Pa or lower, where the protective layer and the phosphor layer exhibit less water-absorbing property, preventing degradation of the PDP performances. The protective layer does not contact with atmospheric carbonic acid gas, preventing alteration thereof.

Production method for plasma display panel

A gas discharge panel to increase the illuminance efficiency and a method of manufacturing includes providing a plurality of cells arranged in a matrix between a pair of substrates. Pairs of display electrodes are arranged on an inner surface of one of the substrates and include two bus lines lying parallel to each other with one or more inner protrusions arranged within each cell relative to the bus lines. This arrangement provides a relatively short discharge gap between the pair of display electrodes.

Gas discharge panel with electrodes comprising protrusions, gas discharge device, and related methods of manufacture

A manufacturing method for a metal electrode used for a bus electrode, a data electrode, and the like which make up a display panel including a PDP (Plasma Display Panel) by which, when these electrodes are patterned according to a photolithographic method, the edge curl phenomenon can be substantially controlled to the extent that the phenomenon is negligible. The manufacturing method of the invention therefore includes a dry step for drying the layers making up the metal electrode so that flows (F, F, and F) of the solvent occur from a region having a high absorbency of the solvent to a region having a lower absorbency of the solvent.

Multi-layered shaped electrode

Barrier ribsformed on a back substrate PAare brought into contact with a bonding paste layerhaving an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs. Furthermore, a gas discharge panel having a structure in which discharge mainly occurs at locations distanced from parts of the panel connected using the bonding agent Bd is realized.

Display panel and manufacturing method for the same including improved bonding agent application method

A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.

Manufacturing method and manufacturing apparatus for a gas discharge panel

Method of manufacturing metal electrode

Display panel and manufacturing method for the same including bonding agent application method

The object of the present invention is to provide a gas discharge panel, where the conversion efficiency of discharge energy into visible rays and the panel brightness are improved, with the color purity being improved as far as possible. To achieve this object, in a gas discharge panel, the pressure of discharge gas is set in a range of 800-4000 Torr, that is higher than a conventional gas pressure. Also, a rare gas mixture including helium, neon, xenon, and argon is used as discharge gas charged into discharge spaces, instead of conventional discharge gas. Here, it is preferable that the proportion of Xe is set to 5% by volume or less, that of Ar 0.5% by volume or less, and that of He under 55% by volume. With this rare gas mixture, the light-emission efficiency is improved, with the firing voltage being suppressed. Furthermore, display electrodes and address electrodes are arranged on the surface of either of a front cover plate and a back plate, with a dielectric layer existing between the display electrodes and the address electrodes. With this construction, addressing is performed with a relatively low voltage even if the gas pressure is high.

Gas discharge panel and gas light-emitting device

Growing community of inventors

Kyoto, Japan

Hiroyosi Tanaka