37results about "Gas mixture absorption" patented technology

The present invention relates to a plasma display panel (PDP) that includes a first substrate, an address electrode formed on the first substrate, a dielectric layer formed on the first substrate and covering the address electrode, a barrier rib formed on the dielectric layer, a second substrate, a display electrode formed on the second substrate, a dielectric layer formed on the second substrate and covering the display electrode, and a protection layer formed on the dielectric layer of the second substrate. Discharge cells are defined by barrier ribs, and a phosphor layer is formed in the discharge cells. Barrier ribs contains inorganic adsorbent. When a PDP is operated for a long time, residual carbon or water is generated inside discharge cells, and thereby contaminates a discharge gas contained in the discharge cells. The inorganic adsorbent included in the barrier ribs absorb the residual carbon or water improving efficiency and lifespan of the PDP.

A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 μs or less.

A method of manufacturing a plasma display panel is disclosed. The method includes forming at least one of a dielectric layer on a principal face of a substrate, barrier ribs which partition a discharging space on the dielectric layer, and a phosphor layer disposed between the barrier ribs using an inorganic material into which solution including a degassing material is impregnated.

Provided is a manufacturing method that allows even a PDP having high-definition cells to exhibit excellent image display performance with reduced power consumption by effectively preventing impurities from adhering to the protective layer. Specifically, in a pre-baking step, a back substrate 9 is baked at a pre-baking temperature. Here, a highest pre-baking temperature is set to be lower than a softening point of a sealing material. The back substrate 9 is superposed on a front substrate 2. Then, a sealing step is performed in a sealing atmosphere prepared by mixing a predetermined amount of a reducing gas with a non-oxidizing gas. The above enables the impurities attributed to organic components due to a sealing material paste to remain as low molecular components, whereby the impurities are evacuated and removed in an evacuating step performed after the sealing step. This prevents adherence of the impurities to the protective layer 8.

A manufacturing process for the production of plasma display panels (80) is described which allows to obtain in a simple way displays wherein, in contact with the atmosphere present in channels (C) or cells of the display, getter materials deposits (81, 81', ...) are present.

A composite getter for maintaining medium and low vacuum environment comprises an elemental metal powder getter (3), an alloy powder getter (2), a drying agent powder (1) and a plastic film (4), wherein the elemental metal powder getter (3) and the alloy powder getter (2) are present respectively as one layer and stacked in the center position of the drying agent powder (1) to form a core-clad structure, which is packed in the plastic film (4). The elemental metal powder getter (3) is one or a combination of at least two selected from the group consisting of reduced iron powder, nickel powder and copper powder with a grain size range from 10 to 200 µm. The alloy powder getter (2) is one or a combination of at least two selected from the group consisting of strontium-lithium alloy powder, barium-lithium alloy powder and barium-magnesium alloy powder with a grain size range from 50 to 500 µm. The drying agent powder (1) is one or a combination of at least two selected from the group consisting of calcium oxide powder, strontium oxide powder and barium oxide powder with a grain size range from 20 to 200 µm. The plastic film (4) is breakable automatically under a pressure difference of one atmosphere. The performance properties of this composite getter is not affected when exposed to air for a short period of time. The method for producing the composite getter is also disclosed.

A vacuum exhaust method is for decreasing a pressure in a processing chamber in which a mounting table configured to mount thereon a substrate is provided by using a gas exhaust unit. The vacuum exhaust method includes mounting a non-evaporated getter (NEG) on the mounting table, and adsorbing an active gas in the processing chamber on the NEG mounted on the mounting table. In the adsorbing the active gas, the NEG is maintained at a predetermined temperature.

The invention provides a getter assembly and a manufacturing method thereof, and a display device including the getter assembly. The getter assembly is mounted in a getter chamber. The getter assembly comprises a plurality of getters, support units to support the plurality of getters. When the getter assembly is mounted the getter chamber, the support unit is elastically deformed to create a pressing force against the plurality of spacer, thereby the getter assembly maintain fixedly in the getter chamber.