Abstract: The objective of the present invention is to provide a corrosion resistance evaluation method and evaluation device that make it possible to estimate crevice corrosion depth and pitting depth in a short period of time. A corrosion resistance evaluation method according to the present invention is characterized in that the surface potential of a metal under evaluation is measured in a state in which the metal is immersed in a usage-environment liquid, the surface potential distribution of the metal is determined, the surface potential differences in the microstructure of the metal are calculated on the basis of the surface potential distribution, and the corrosion rate of crevice corrosion and corrosion rate of pitting are predicted using the maximum surface potential difference from among the calculated surface potential differences as an evaluation index for corrosion evaluation.

Abstract: The objective of the present invention is to provide a corrosion resistance evaluation method and evaluation device that make it possible to estimate crevice corrosion depth and pitting depth in a short period of time. A corrosion resistance evaluation method according to the present invention is characterized in that the surface potential of a metal under evaluation is measured in a state in which the metal is immersed in a usage-environment liquid, the surface potential distribution of the metal is determined, the surface potential differences in the microstructure of the metal are calculated on the basis of the surface potential distribution, and the corrosion rate of crevice corrosion and corrosion rate of pitting are predicted using the maximum surface potential difference from among the calculated surface potential differences as an evaluation index for corrosion evaluation.

Abstract: A protective layer has, on its back side, an electron emissive layer formed of magnesium oxide crystals. Based on a front view of discharge cells C, there are defined intersection regions (first regions) where display electrode pairs (each including a sustain electrode X and a scan electrode Y) and address electrodes Z intersect and a remaining region (a second region) E1 excluding the intersection regions. The surface density of the magnesium oxide crystals forming the electron emissive layer over the intersection regions (the first regions) is equal to or lower than half the surface density of the magnesium oxide crystals forming the electron emissive layer over the remaining region (the second region) E1 excluding the intersection regions.

Abstract: In order to reduce the discharge delay time and increase the image quality in a display device such as a PDP using ultraviolet light emission produced by discharge, there is provided a display device including: a front panel and a rear panel disposed opposite to each other with discharge spaces formed therebetween, and a discharge gas being injected into the discharge spaces; at least a pair of electrodes for performing a display discharge; and phosphor layers emitting visible light by using ultraviolet light emission produced by discharge of the discharge gas. At least one of the compounds represented by the composition formulas Cs(1?x)M1xAl02 (where M1 is the I group element, 0?5x<1) and Cs(1?x)M2xAl(1+x)O(2+2x) (where M2 is the II group element, 0?x<1) is present in any of the components constituting the discharge spaces of the display device.

Abstract: An MIM electron source is comprised of a lower electrode, an insulation film and an upper electrode. By depositing a coat film on the upper electrode through a sputter process using a sputter target of alkaline glass having a modifier component of an alkaline metal oxide or alkaline earth metal oxide, the work function of the upper electrode can be lowered. As a result, the electron emission efficiency can be increased stably.

Abstract: Hillock is prevented when aluminum wiring is used in order to reduce line resistance in a display unit. The aluminum wiring is formed into multi-layer structure and each layer contains an element which is not solidly solubilized with aluminum. The element are preferably rare earth metal such as Nd, high-melting point transition metals such as Ta and noble metals such as Pd. Intermetallic compounds of aluminum and the element are educed at an interface of the multi-layer wiring and it is prevented that grains of aluminum are enlarged to form hillock.

Abstract: The present invention aims to form an electron emission film containing an alkali metal compound or the like without causing alkali attack on the metal wiring. An FED display device comprises: an electron source including an electron emission film 13 on the surface thereof; and metal wirings 17, 18 and the like for supplying a signal or the like to the electron source. After forming on the surface of the metal wiring 18 an corrosion resistant film 21 comprising a reactive film or adsorption film with phosphorus, an alkali metal or the like is coated onto or added into the electron emission film 13. The addition of phosphorus is made fewer than the chemical equivalent of the alkali metal salt. Such configuration can improve the electron emission efficiency of the electron source without the metal wiring being corroded by alkali metal or the like.

Abstract: A simple method was needed for dividing up the electron emitter electrodes into individual supply electrodes. An insulator partition wall was formed on the same layer and parallel to the supply electrode for supplying power to the electron emitter electrode, an electron emitter electrodes formed across the entire surface of the image display area, a side surface of the partition wall was sliced, condensation and solubility diffusion performed by heat treatment, ablation performed by irradiating the upper surface of the silicon partition wall with a laser, Joule thermal sealing/cutting performed by conducting electricity across the scanning lines enclosing the silicon partition wall in order to slice the electron emitter electrode.

Abstract: A circular track (11) constructed to open and close supports a truck (4) riding on the track (11). A packaging material feeder (7) is mounted on the truck (4) to feed packaging material (6) from a packaging material coil (5). Part of the item for packaging (8) is placed in the closed circular track (11) and is supported by means of a support (9). A drive mechanism for moving the truck (12) is set along the circular track (11) and is engaged with the truck (4) . The drive mechanism is operated with a motor stationarily mounted to the track to move the truck along the circular track (11). There is no need to mount the motor to the truck. Accordingly, it is possible to make the truck compact and decrease the curvature radius of each corner of the circular track. This results in the possibility of wrapping a relatively large item for packaging and at the same time make a packaging device simple and compact in its entirety.

Abstract: A circular track (11) constructed to open and close supports a truck (4) riding on the track (11). A packaging material feeder (7) is mounted on the truck (4) to feed packaging material (6) from a packaging material coil (5). Part of the item for packaging (8) is placed in the closed circular track (11) and is supported by means of a support (9). A drive mechanism for moving the truck (12) is set along the circular track (11) and is engaged with the truck (4). The drive mechanism is operated with a motor stationarily mounted to the track to move the truck along the circular track (11). There is no need to mount the motor to the truck. Accordingly, it is possible to make the truck compact and decrease the curvature radius of each corner of the circular track. This results in the possibility of wrapping a relatively large item for packaging and at the same time make a packaging device simple and compact in its entirety.