Abstract: A lead frame 10 includes first and second frames 13, 14 and a fixed contact piece 15. The fixed contact piece 15 is integrally formed with the first frame via a conductive connection part 16. The first frame and the fixed contact piece 15 and the second frame have installation parts 13a, 14a, 14b, 15b to which resistance elements are able to install. The first frame 13 and the fixed contact piece have installation parts 13b, 15a to which resistance elements are able to install. Electrical circuits of different types are formed through combinations of whether the resistance elements are installed to the respective installation parts and whether the conductive connection part 16 is cut off.

Abstract: A switch device may include a pressing member, an urging member, fixed contacts, at least one movable contact swingable in a direction intersecting with a movement direction of the pressing member and connecting and disconnecting between the fixed contacts. The pressing member may include a slider portion extending in a direction oblique to the movement direction and slidable along the movable contact. The movable contact may be pressed by the slider portion in the pressing member sliding to swing and come in contact with and separate from at least one of the fixed contacts in response to the pressing member moving from a reference position to a pressed position.

Abstract: A plasma display panel is provided with a front substrate (22); a rear substrate (23) arranged to face the front substrate; and an exhaust tube (21). A discharge space is formed by sealing the circumference of the front substrate with the circumference of the rear substrate. The exhaust tube is connected to the rear substrate for exhausting the discharge space and filling the discharge space with a discharge gas. The exhaust tube is formed of a lead-free glass, and the ratio of its thickness to its outer diameter is 0.2 or more.

Abstract: A method of manufacturing display panels includes forming a material layer on a substrate, and baking the material layer formed on substrate which is placed on a supporting bed. The supporting bed is formed of a first supporting bed and a second supporting bed placed on the first supporting bed. A difference in thermal expansion coefficient between the second supporting bed and the substrate is smaller than a difference in thermal expansion coefficient between the first supporting bed and the substrate, and the substrate is placed on the second supporting bed such that the substrate is positioned entirely within the perimeter of the second supporting bed during the baking and heating. This structure allows reduction of scratches on a surface of the substrate.

Abstract: An object of the present invention is to provide a technique for relatively easily suppressing the yellowing of a Plasma Display Panel in which electrodes comprising silver are disposed on the substrates, and thus render image displays with high luminance and high quality. In order to achieve the object, an arrangement is made in which the electrodes comprising silver further include an element whose standard electrode potential is lower than that of silver, such as Cr, Al, In, B, and Ti, or a compound of such an element, as a silver ionization inhibiting substance.

Abstract: A PDP has first and second substrates which face each other with a space in between. A display electrode pair and a dielectric layer are formed on the first substrate, and a plurality of discharge cells are formed between the first and second substrates along the display electrode pair. In this construction, two or more depressions are provided in the dielectric layer in an area corresponding to each discharge cell. This improves luminous intensity and illumination efficiency. Also, to form the dielectric layer on the first substrate, first a transfer film is made by providing a dielectric precursor layer on a support film, then depressions are formed in the dielectric precursor layer of the transfer film, and lastly the dielectric precursor layer of the transfer film is transferred onto the first substrate. This decreases the number of manufacturing steps and increases the yield, thereby reducing manufacturing costs.

Abstract: A plasma display panel is disclosed. It can display quality videos and its manufacturing steps can be reduced. A pair of substrates (3), (11) confront each other to form dischargeable space (16) in between. At least front one (3) of the substrates is transparent, and includes display electrodes (6) formed of scan electrodes (4) and sustain electrodes (5), as well as light-blocking sections (7) corresponding to non-dischargeable sections (18) disposed between the display electrodes (6). The other substrate (11) facing to rear includes phosphor layers (15R), (15G), (15B) which emit light by discharging. Each one of display electrodes (6) is formed of transparent electrodes (4a), (5a) and bus electrodes (4b), (5b) which are formed of a plurality of electrode-layers. At least one of the electrode-layers is made of black layer (19) having a specific volume resistance ranging from 1×105 ?cm to 1×109 ?cm, and light-blocking sections (7) are made of identical material of black layer (19).

Abstract: The plasma display panel disclosed has a front substrate and a rear substrate positioned to face each other. The front substrate includes display electrodes provided with scan electrodes and sustain electrodes, and a light-shield provided on a non-discharge area between display electrodes. A rear substrate includes phosphor layers to emit light by discharge. The display electrodes are composed of transparent electrodes, and bus electrodes. The bus electrodes are composed of a plurality of electrode layers and at least one of the electrodes is composed of a black layer having a product of the resistivity and layer thickness of not larger than 2 ?cm2. A light-shield is composed of a black layer with the resistivity of not smaller than 1×106 ?cm.

Abstract: A method of manufacturing display panels includes the steps of forming a material layer on a substrate (23), and baking the material layer formed on substrate (23) which is placed on a supporting bed (20). The supporting bed (20) is formed of a first supporting bed (21) and a second supporting bed (22) placed on the first one (21). A difference in thermal expansion coefficient between the second supporting bed (22) and the substrate (23) is set smaller than a difference in thermal expansion coefficient between the first supporting bed (21) and the substrate (23), and the substrate (23) is placed on the second supporting bed (22) such that the second supporting bed (22) exists around the substrate (23) during the baking step for being heated and baked. This structure allows suppressing the production of scratches on a surface of the substrate (23).

Abstract: 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.

Abstract: The plasma display panel disclosed has a front substrate and a rear substrate positioned to face each other. The front substrate includes display electrodes provided with scan electrodes and sustain electrodes, and a light-shield provided on a non-discharge area between display electrodes. A rear substrate includes phosphor layers to emit light by discharge. The display electrodes are composed of transparent electrodes, and bus electrodes. The bus electrodes are composed of a plurality of electrode layers and at least one of the electrodes is composed of a black layer having a product of the resistivity and layer thickness of not larger than 2 ?cm2. A light-shield is composed of a black layer with the resistivity of not smaller than 1×106 ?cm.

Abstract: A plasma display panel is disclosed. It can display quality videos and its manufacturing steps can be reduced. A pair of substrates (3), (11) confront each other to form dischargeable space (16) in between. At least front one (3) of the substrates is transparent, and includes display electrodes (6) formed of scan electrodes (4) and sustain electrodes (5), as well as light-blocking sections (7) corresponding to non-dischargeable sections (18) disposed between the display electrodes (6). The other substrate (11) facing to rear includes phosphor layers (15R), (15G), (15B) which emit light by discharging. Each one of display electrodes (6) is formed of transparent electrodes (4a), (5a) and bus electrodes (4b), (5b) which are formed of a plurality of electrode-layers. At least one of the electrode-layers is made of black layer (19) having a specific volume resistance ranging from 1×105 ?cm to 1×109 ?cm, and light-blocking sections (7) are made of identical material of black layer (19).

Abstract: A manufacturing method for a gas discharge display panel includes a disposing step of disposing on a substrate, material of one of an electrode, a dielectric layer, a barrier rib, and a phosphor layer; and a baking step of baking the substrate on which the material has been disposed, while the substrate is carried on a support platform. The support platform has at least one channel in a surface thereof on which the substrate is placed, extending from a covered area covered by the substrate through to an exposed area not covered by the substrate.

Abstract: A plasma display panel capable of restricting the yellowing of a dielectric layer and the occurrence of dielectric breakdown, wherein glass constituting a dielectric layer uses glass containing a metal oxide MO2 capable of a trivalent or tetravalent-ion formation in glass. Accordingly, even when Ag is ionized from an electrode consisting essentially of Ag to diffuse to a dielectric layer, Ag does not aggregate to be formed into a colloid with an ionized state kept. Therefore, yellowing and dielectric breakdown caused by Ag turning to colloid can be restricted.

Abstract: It is aimed to provide a technique for easily suppressing swellings produced in end parts of partitions, thereby achieving a PDP capable of displaying a high-quality image. A PDP therefore has a plurality of partitions that include: (a) a plurality of main parts; and (b) a plurality of sub parts that each extend from an end part of one of the plurality of main parts parallel to a direction perpendicular to a direction in which the main parts extend. This allows each partition to have an end that is wider than a center part of the partition. In the process of forming PDP partitions, end parts of the partitions are partially heated, after they are baked, to a temperature higher than a softening point of a partition material. As a specific partial heating method, a method with which a laser beam is projected onto an end part is suitable.

Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having 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.

Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having 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.

Abstract: A plasma display panel includes a first panel member in which a plurality of pairs of display electrodes are arranged so as to be adjacent to each other in a column direction and a second panel member in which a plurality of address electrodes are arranged so as to be adjacent to each other in a row direction, and the first panel member and the second panel member are opposed to each other so that a plurality of cells are formed in a matrix in areas where the plurality of pairs of display electrodes intersect with the plurality of address electrodes. The plasma display panel is characterized in that at least one of an average cell area, an average cell opening ratio and an average visible light transmittance efficiency is greater in a panel central region than in a panel peripheral region.

Abstract: 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.

Abstract: A plasma display panel capable of restricting the yellowing of a dielectric layer and the occurrence of dielectric breakdown, wherein glass constituting a dielectric layer uses glass containing a metal oxide MO2 capable of a trivalent or tetravalent-ion formation in glass. Accordingly, even when Ag is ionized from an electrode consisting essentially of Ag to diffuse to a dielectric layer, Ag does not aggregate to be formed into a colloid with an ionized state kept. Therefore, yellowing and dielectric breakdown caused by Ag turning to colloid can be restricted.