Abstract: An organic EL display panel including: a pair of first banks, second banks, and functional layers. The first banks have a greater length in a first direction than in a second direction orthogonal to the first direction and have a gap therebetween. The second banks span the gap and are disposed at intervals along the first direction. The functional layers are disposed within respective ones of recesses defined by the first banks and the second banks and each correspond to at least a portion of an organic EL element. Each of the second banks has a groove at an upper surface thereof. The groove connects recesses adjacent to each other with the second bank therebetween and has a width, along the second direction, smaller than a width of the adjacent recesses along the second direction and within an inclusive range from 2 ?m to 6 ?m.

Abstract: A plasma display panel has a front substrate, a rear substrate, and a phosphor layer. The front substrate has a dielectric layer formed so as to cover a plurality of display electrodes disposed on a substrate, and a protective layer formed on the dielectric layer. The rear substrate is faced to the front substrate so as to form discharge space, has data electrodes in the direction intersecting with the display electrodes, and has barrier ribs for partitioning the discharge space. The phosphor layer is formed by applying phosphor ink that is made of a phosphor material and dispersant between the barrier ribs of the rear substrate. Nano-particles with a diameter of a range of 1 nm to 100 nm inclusive, or a solvent having an affinity for the dispersant of the phosphor ink is applied to the surfaces of the barrier ribs, and then the phosphor ink is applied to them, thereby forming the phosphor layer.

Abstract: A plasma display panel has a front substrate, a rear substrate, and a phosphor layer. The front substrate has a dielectric layer formed so as to cover a plurality of display electrodes disposed on a substrate, and a protective layer formed on the dielectric layer. The rear substrate is faced to the front substrate so as to form discharge space, has data electrodes in the direction intersecting with the display electrodes, and has barrier ribs for partitioning the discharge space. The phosphor layer is formed by applying phosphor ink that is made of a phosphor material and dispersant between the barrier ribs of the rear substrate. Nano-particles with a diameter of a range of 1 nm to 100 nm inclusive, or a solvent having an affinity for the dispersant of the phosphor ink is applied to the surfaces of the barrier ribs, and then the phosphor ink is applied to them, thereby forming the phosphor layer.

Abstract: The present invention provides a method for producing a plasma display panel, including a step of providing a back substrate with a barrier rib to form a plurality of recesses separated each other by the barrier rib, and a step of applying a phosphor ink to the recesses using an inkjet device, wherein the phosphor ink contains a phosphor and a dispersant, and any one of (a) to (c) is satisfied: (a) the phosphor is a red phosphor, and the amount of the dispersant added is not less than 0.0001 g and not more than 0.02 g per 1 m2 of the surface area of the red phosphor; (b) the phosphor is a blue phosphor, and the amount of the dispersant added is not less than 0.0007 g and not more than 0.04 g per 1 m2 of the surface area of the blue phosphor; and (c) the phosphor is a green phosphor, and the amount of the dispersant added is not less than 0.0001 g and not more than 0.02 g per 1 m2 of the surface area of the green phosphor.

Abstract: The present invention provides a method for producing a plasma display panel, including a step of providing a back substrate with a barrier rib to form a plurality of recesses separated each other by the barrier rib, and a step of applying a phosphor ink to the recesses using an inkjet device, wherein the phosphor ink contains a phosphor having a median particle diameter of not less than 1.0 ?m, and a solvent, and an initial speed of the phosphor ink ejected from a nozzle hole of the inkjet device is not less than 4 m/s and not more than 10 m/s.

Abstract: The present invention provides a method for producing a plasma display panel, including a step of providing a back substrate with a barrier rib to form a plurality of recesses separated each other by the barrier rib, and a step of applying a phosphor ink to the recesses using an inkjet device, wherein the phosphor ink contains a phosphor having an average particle diameter of not less than 1.0 ?m, a solvent and a dispersant, and the content of the phosphor in the phosphor ink is not less than 30 wt % and not more than 70 wt %.

Abstract: In a magnetic head, a multilayer film is disposed, the multilayer film including metal magnetic films and non-magnetic films that are alternately laminated, and a boundary between the multilayer film and a magnetic oxide substrate or a non-magnetic substrate on which the multilayer film is to be formed is parallel with a gap section at a surface of the magnetic head for sliding with respect to a magnetic recording medium. The metal magnetic films constituting the multilayer film have two or more types of thickness, or the metal magnetic films constituting the multilayer film have a uniform thickness, and the uniform thickness t satisfies t<v×cos?/fmax, where v denotes a relative speed of the head to the recording medium, fmax denotes an upper limit of frequencies to be used and ? denotes an azimuth angle. With this configuration, a magnetic head having a suppressed pseudo signal and reduced noise can be provided, and a magnetic recording/reproducing device incorporating this magnetic head can be provided.

Abstract: In a magnetic head, a multilayer film is disposed, the multilayer film including metal magnetic films and non-magnetic films that are alternately laminated, and a boundary between the multilayer film and a magnetic oxide substrate or a non-magnetic substrate on which the multilayer film is to be formed is parallel with a gap section at a surface of the magnetic head for sliding with respect to a magnetic recording medium. The metal magnetic films constituting the multilayer film have two or more types of thickness, or the metal magnetic films constituting the multilayer film have a uniform thickness, and the uniform thickness t satisfies t<v×cos ?/fmax, where v denotes a relative speed of the head to the recording medium, fmax denotes an upper limit of frequencies to be used and ? denotes an azimuth angle. With this configuration, a magnetic head having a suppressed pseudo signal and reduced noise can be provided, and a magnetic recording/reproducing device incorporating this magnetic head can be provided.