摘要:
A phosphor in which water adsorption onto the surface of a blue phosphor is inhibited, luminance degradation and chromaticity shift of the phosphor is decreased, or discharge characteristics thereof is improved, and a plasma display device using the phosphor. In phosphor layers used for plasma display, selectively coating at least the vicinity of the sides of planes of mirror symmetry containing Ba atoms in a blue phosphor with an oxide or a fluorine-containing oxide inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromacity shift of a phosphor, or improves discharge characteristics thereof.
摘要:
Phosphor layers (110G, 110B, and 110R) are made of combination of: blue and green phosphors that are positively charged on their surfaces and baked in an oxygen-nitrogen atmosphere to reduce oxygen vacancy, and have a β-alumina crystal structure; and a red phosphor made of an yttrium oxide compound. Uniformly forming such phosphor layers on the wall surfaces of barrier ribs (109) provides equal charge characteristics of the phosphors of respective colors, reduces oxygen vacancy in the phosphors, and inhibits adsorption of various gases in the panel production process. This can stabilize the discharge characteristics and prevent luminance degradation at driving the panel.
摘要:
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.
摘要:
A plasma display panel having an excellent image display quality and high reliability is provided by preventing deterioration of a phosphor due to hydrocarbon gas remaining in the plasma display panel. The plasma display panel includes front panel (50) and rear panel (60) disposed opposing each other, and front panel (50) is provided with a plurality of display electrodes composed of a pair of scan electrodes (6) and sustain electrodes (7), and rear panel (60) has barrier ribs (10) forming discharge cells (11). In the plasma display panel, rear panel (60) includes data electrodes (9) perpendicular to display electrodes composed of a pair of scan electrodes (6) and sustain electrodes (7) on substrate (2), dielectric layer (13) covering data electrodes (9), reflective layer (20) containing an oxidation catalyst and covering at least a part of dielectric layer (13), and phosphor layer (12) covering reflective layer (20).
摘要:
In a phosphor whose host crystal is constituted of an oxide, a method of preparing the phosphor where the oxygen deficiencies in the phosphor are not many, and a plasma display device using the same are provided. After processes of weighing, mixing and filling powders of the phosphor, a process for firing in a reducing atmosphere and a process for firing in an oxidizing atmosphere after the last reducing atmosphere process are provided. In addition, a firing temperature in the oxidizing atmosphere process is not less than 600° C. and not more than 1000° C.
摘要:
The present invention provides a plasma display panel that suppresses discharge sustain voltage, and reduces brightness degradation of a phosphor. In the plasma display panel, as protective film (14) made of magnesium oxide (MgO) formed on dielectric glass layer (13), protective film (14) made of magnesium oxide (MgO) with oxide added with an electronegativity of 1.4 or higher, is formed to suppress impure gas adsorption by protective film (14), stabilizes discharge sustain voltage, and reduces brightness degradation.
摘要:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
摘要:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then performing oxygen ion implantation treatment for implanting oxygen ions and annealing the particles, after the step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.
摘要:
The preresent invention provides a plasma display panel that suppresses discharge sustain voltage, and reduces brightness degradation of a phosphor. In the plasma display panel, as protective film (14) made of magnesium oxide (MgO) formed on dielectric glass layer (13), protective film (14) made of magnesium oxide (MgO) with oxide added with an electronegativity of 1.4 or higher, is formed to suppress impure gas adsorption by protective film (14), stabilizes discharge sustain voltage, and reduces brightness degradation.
摘要:
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an oxygen plasma atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.