摘要:
A layer of an aqueous solution containing polyvinyl alcohol and a zirconyl compound is applied to a clean glass surface and dried to produce a precoating thereon. A subsequently-applied phosphor-photobinder coating thereon is exposed to a light image and then developed with a turbulent aqueous liquid. The phosphor-photobinder coating exhibits improved adherence to the surface during the developing step due to the presence of the precoating.
摘要:
Luminescent materials are adhered to TV color picture screens or image display device screens by coating the inner surface of a glass screen substrate with a conductive or non-conductive C.sub.1 to C.sub.4 alcoholic or carboxylic solution containing oxygen-rich organic materials selected from the group consisting of silicon salts of relative low molecular weight carboxylic acids, tin salts of relatively low molecular weight carboxylic acids (which can be optionally doped to render them conductive, if desired) or mixtures thereof or a doped tin compound, at least partially drying such coating, as at a temperature of about 150.degree. C., applying a select pattern of luminescent materials onto such partially dried coating and curing or tempering the resultant structure, as at a temperature of about 500.degree. C. so that the luminescent material is firmly embedded within the conductive/non-conductive coating.
摘要:
The disposition of an array of color phosphor dots on a color cathode ray tube faceplate by conventional photo deposition techniques is facilitated by first coating the individual phosphor particles with polyvinyl alcohol modified with an amino acid such as glutamic or aspartic acid.
摘要:
In a process for producing a color television picture tube which comprises at least the step of coating phosphor slurries onto the inner surface of a panel to form a phosphor layer, the step of forming two layers each consisting of an aqueous filming emulsion containing an acrylic resin, the step of forming a metal film on the second layer, and the step of baking out the organic substances, a color television picture tube having a metal film which contains a few pores and cracks and no blister can be produced by using said phosphor slurries containing an acrylic resin and using the first aqueous filming emulsion containing an acrylic resin having an elongation of 10% or more and using the second aqueous filming emulsion containing an acrylic resin having an elongation of less than 10%.
摘要:
An improved photo-chemically active part of the fluorescent suspension for color TV picture tubes is provided. By adding polyether alcohol of the general formula HOCH.sub.2 [CH.sub.2 OCH.sub.2 ].sub.n CH.sub.2 OH, three production factors are improved: adherence of the luminescent material to the glass, exposure time and reduced cross contamination.
摘要:
Phosphor particles coated with a mixture of GeO2 and SiO2 or a mixture of WO3 and SiO2 are dispersed in an aqueous solution of a photosensitive resin together with a protective dispersing agent for the particles in the solution to form a slurry. Y2O3 :Eu phosphor particles with the coating are chemically stable and do not hydrolize in the slurry. The slurry is then applied to the inner surface of a glass tube. The resulting phosphor film is dried, printed and developed by the photographic technique to form a desired pattern of the phosphor material. By the invention manufacturing a bright color picture tube employing Y2O3:Eu phosphor becomes possible in commercial success.
摘要翻译:将涂覆有GeO 2和SiO 2或WO 3和SiO 2的混合物的荧光体颗粒与用于溶液中的颗粒的保护性分散剂一起分散在感光性树脂的水溶液中以形成浆料。 具有涂层的Y 2 O 3:Eu荧光体颗粒是化学稳定的,并且在浆液中不水解。 然后将浆料施加到玻璃管的内表面。 通过照相技术将所得的荧光膜干燥,印刷和显影,以形成所需的荧光体材料图案。 通过本发明,制造使用Y 2 O 3:Eu荧光粉的明亮彩色显像管成为商业上成功的可能。
摘要:
A method of forming a fluorescent screen on the surface of a substrate, comprising the steps of: applying a layer of a fluorescent substance and a resin binder onto one side of a film sheet which is soluble in a first solvent but insoluble in a second solvent in which said binder is soluble so as to form a fluorescent film assembly, coating a resin binder onto the substrate surface and contacting said one side of said fluorescent film assembly thereto to cause it to adhere to the substrate and bonding said one side of said film sheet to said substrate surface by means of said resin binder which is soluble also in said second solvent so that said layer of fluorescent substance on said fluorescent film assembly adheres to said substrate surface, and, then, removing said film sheet by dissolving it in said first solvent.
摘要:
The present invention relates to an electron emission device including a light-emitting area having a high level of brightness and conductance and a method of manufacturing the same. An electron emission device according to one embodiment of the present invention comprises a light-emitting region which comprises at least one phosphor layer formed on the second substrate; a surface treatment layer which is formed on the surface of the phosphor layer and comprises a functional material which remains after a firing process for making the phosphor layer; and at least one anode covering the surface treatment layer.