Matsushita Electric Industrial Co., Ltd.

Matsushita Electrical Industrial Co., Ltd.

Nobuyuki Kirihara

Junichi Hibino

Keisuke Sumida

Hiroyuki Kawamura

Shigeo Suzuki

Yoshiki Sasaki

Hiroyuki Yonehara

Masafumi Ookawa

Katuyoshi Yamashita

Kazuo Ootani

Nobuaki Nagao

Ryuichi Murai

Yuusuke Takada

Hideaki Yasui

Hiroyosi Tanaka

Choujurou Yamamitsu

Hidetaka Hiagshino

Masaki Aoki

Hiroyuki Kado

Mitsuhiro Ohtani

Kanako Miyashita

Kinzou Nonomura

The present invention intends to provide a manufacturing method for a PDP that can continuously apply phosphor ink for a long time and can accurately and evenly produce phosphor layers even when the cell construction is very fine. To do so, phosphor ink is continuously expelled from a nozzle while the nozzle moves relative to channels between partition walls formed on a plate so as to scan and apply phosphor ink to the channels. While doing so the path taken by the nozzle within each channel between a pair of partition walls is adjusted based on position information for the channel. When phosphor particles is successively applied to a plurality of channels, phosphor ink is continuously expelled from the nozzle even when the nozzle is positioned away from the channels. The phosphor ink is composed of: phosphor particles that have an average particle diameter of 0.5 to 5 &#x3bc;m; a mixed solvent in which materials selected from a group consisting of terpineol, butyl carbitol acetate, butyl carbitol, pentandiol, and limonene are mixed; and a binder that is an ethylene group polymer or ethyl cellulose containing at least 49% of ethoxy group (&#x2014;OCH) cellulose molecules. After dispersion a charge-removing material is added to the phosphor ink.

Plasma display panel manufacturing method for manufacturing a plasma display panel with superior picture quality, a manufacturing apparatus, and a phosphor ink

A method of producing a gas discharge panel includes forming a surrounding unit by positioning a first panel and a second panel together with barrier ribs to partition the space between the panels into cells for light emission when charged with a plasma gas and appropriately addressed. An anti-sealing material inflow rib surrounds the barrier ribs. Sealing material is positioned outside the anti-sealing material inflow rib. The pressure inside the surrounding unit is adjusted to be lower than pressure outside the surrounding unit while applying heat to fuse the sealing material between the first panel and the second panel whereby sealing material is prevented from inflowing into the cells between the barrier ribs during production.

Sealing method and apparatus for manufacturing high-performance gas discharge panel

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 plasma display panel applies phosphorous ink from a nozzle to channels between partition walls as the nozzle moves relative to the channels. The phosphorous ink is redispersed with a dispenser before being expelled from the nozzle. Subsequently, a second plate is placed on the partition walls and the first and second plates are sealed together with a gas medium between the two.

A method is provided to steadily produce a gas discharge panel, such as a PDP, in which a panel and the top of the barrier ribs are in intimate contact in entirety. First a surrounding unit for the gas discharge panel is formed, then a process for sealing the surrounding unit with a sealing material inserted between two panels at the rim is performed while pressure is adjusted so that pressure inside the surrounding unit is lower than pressure outside. With this construction, the panels constituting the surrounding unit are bonded together while they are pressurized from outside. As a result, a panel and the top of the barrier ribs on the other panel are bonded together while they are in intimate contact in entirety. To fully acquire these effects, it is preferable that the adjustment of pressure starts before the sealing material hardens. During, before, or after the sealing step, an energy such as laser beams or ultrasonic waves may be radiated onto the top of the barrier ribs to bond a panel and the top of the barrier ribs in entirety almost without a gap between them.

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

Manufacturing method for a plasma display panel, a plasma display panel, and a phosphor ink applying device

Phosphor ink coating device, plasma display panel, and method of manufacturing the plasma display panel

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Hirakata, Japan

Nobuyuki Kirihara