摘要:
A gas discharge panel improved in the efficiency of converting discharge energy into visible light, panel brightness, and color purity. A gaseous medium is filled in the gas discharge panel under a pressure of 800 to 4000 Torr, which is higher than that of the prior art. Instead of the conventional gaseous composition, furthermore, the gaseous medium to be filled is a mixture of rare gases including helium, neon, xenon and argon. Desirably, the content of xenon is not larger than 5% by volume, the content of argon is not larger than 0.5% by volume and the content of helium is smaller than 55% by volume, thus making it possible to improve the light-emitting efficiency and to lower the discharge voltage. When a display electrode and an address electrode are laminated on the surface of either a front cover plate or a back plate via a dielectric layer, the addressing can be effected at a relatively low voltage even when a sealing pressure is high.
摘要:
A plasma display panel having an excellent response of generation of discharge by voltage application thanks to shortening of the discharge time lag and undergoing less variation of the discharge time lag with temperature. A scan electrode (5) and a sustain electrode (6) are provided over a front substrate (4), and a dielectric layer (9) covering the scan electrode (5) and the sustain electrode (6) is formed. A protective layer (10) is formed on the dielectric layer (9). The protective layer (10) contains carbon and silicon. The protective layer (10) comprises magnesium oxide to which silicon is added at a density of 5×1018 to 2×1021 atoms/cm3 and carbon is added at a density of 1×1018 to 2×1021 atoms/cm3.
摘要:
The present invention intends to provide a manufacturing method for a PDP that can continuously apply phosphor ink for a long time and can accurately and evenly produce phosphor layers even when the cell construction is very fine. To do so, phosphor ink is continuously expelled from a nozzle while the nozzle moves relative to channels between partition walls formed on a plate so as to scan and apply phosphor ink to the channels. While doing so the path taken by the nozzle within each channel between a pair of partition walls is adjusted based on position information for the channel. When phosphor particles is successively applied to a plurality of channels, phosphor ink is continuously expelled from the nozzle even when the nozzle is positioned away from the channels. The phosphor ink is composed of: phosphor particles that have an average particle diameter of 0.5 to 5 mu m; a mixed solvent in which materials selected from a group consisting of terpineol, butyl carbitol acetate, butyl carbitol, pentandiol, and limonene are mixed; and a binder that is an ethylene group polymer or ethyl cellulose containing at least 49% of ethoxy group (-OC2H
摘要:
A plasma display panel operated at a high luminous efficiency even with a fine cell structure and its manufacturing method. An AC type PDP1 has a first fluorescent film (31) made of thin-film crystals over the surface of a dielectric protection film (14) in a front panel (10). The first fluorescent film (31) is a film formed by EB vapor deposition, the film thickness of which is set in a range where a sufficient luminous efficiency and a visible light transmittance can be secured when the first fluorescent film (31) is irradiated with ultraviolet rays.
摘要:
An improvement of a phosphor layer in mainly the luminance and chromaticity of plasma displays by using phosphor particles which are platy or have an appropriate particle diameter distribution to thereby increase the percentage of loading with the phosphor particles. In an aluminate phosphor containing barium as a base material and europium as an activator, the amount of europium serving as a luminescence center is controlled by using base materials in an appropriate proportion, and heat resistance is improved by appropriately regulating the amount of europium replacement, and durability is improved by appropriately regulating the amount of strontium replacement.
摘要:
A discharge light-emitting device includes a gas-filled discharge spaces (30) to use electric discharge in the gas. The gas contains at least 0.01 - 1% water vapor by volume. The specified amount of water vapor decreases discharge voltage markedly. Water vapor is introduced between a sealing step and an evacuation step so that the gas-filled discharge spaces can finally contain a desired amount of water vapor.