摘要:
A display screen, in particular a flat display screen, having a glass face plate with a transparent electrode layer of a metal oxide, for example indium-doped tin oxide (ITO), a phosphor layer and an adhesive intermediate layer of an alkali silicate between the electrode layer and the phosphor layer.
摘要:
The invention relates to a process for the incorporation of nanophosphors (phosphors) into micro-optical structures, and to corresponding illuminants. In this impregnation process, a micro-optical system comprising inverse opal powders is filled with a dispersion of a nanophosphor.
摘要:
A plasma picture screen is disclosed. In one embodiment, an AC plasma picture screen with a coplanar arrangement which has an enhanced luminance is provided. A layer, which has a high reflection in the wavelength range of the plasma emission (145 to 200 nm) and a high transmission in the visible wavelength range, is provided on the front plate. The front plate includes a glass plate on which a dielectric layer, a protective layer, a reflective layer are provided. The reflective layer reflects UV light emitted in the direction of the front plate back towards phosphors. The optical properties of the UV light reflecting layer are realized with inorganic particles with a particle diameter of between 200 nm and 500 nm and a layer thickness from 0.5 &mgr;m to 5 &mgr;m, or with agglomerates of inorganic particles with a particle diameter of between 10 nm and 200 nm and a layer thickness of 0.2 &mgr;m to 10 &mgr;m.
摘要:
The invention relates to photonic materials having regularly arranged cavities containing at least one colorant, where the wall material of the photonic material has dielectric properties and as such is essentially non-absorbent for the wavelength of an absorption band of the respective colorant and is essentially transparent for the wavelength of a colorant emission which can be stimulated by the absorption wavelength, and the cavities are shaped in such a way that radiation having the wavelength of the weak absorption band of the colorant is stored in the photonic material, to the use thereof as phosphor system in an illuminant, to corresponding illuminants and production processes.
摘要:
The present invention relates to a LED comprising a substrate, a first electrode layer and a thin colloidal layer located between the substrate and the first electrode layer, whereby the LED furthermore comprises a smoothening means located within or on the colloidal layer so that the roughness of the outer surface of the colloidal layer which is facing towards the first electrode layer is Ra≦30 nm and Ra≧1 nm.
摘要翻译:本发明涉及一种LED,其包括位于基板和第一电极层之间的基板,第一电极层和薄胶体层,由此LED还包括位于胶体层内或胶体层上的平滑化装置, 面向第一电极层的胶体层的外表面是R sub = 30nm,而R a a = 1nm。
摘要:
The luminescent phosphor degradation in a cathode ray display tube, caused by aging, is decreased. This decrease is achieved by introducing before and/or during evacuation a hydrolyzable gas into the tube's inner space for a limited time interval, using a partial pressure which is essentially larger than the eventual final vacuum pressure of the cathode ray tube, and then allowing the final vacuum pressure to be achieved without any further supply of gas. Thereafter, the cathode ray tube is sealed in a gastight manner.
摘要:
An LED includes a substrate, a first electrode layer and a thin colloidal layer located between the substrate and the first electrode layer. A smoothening layer or particles located within or on the colloidal layer is provided so that the roughness of the outer surface of the colloidal layer which is facing towards the first electrode layer is Ra≦30 nm and Ra≧1 nm.
摘要:
The invention relates to a display screen comprising a phosphor composition of a sulphide and/or selenide-containing phosphor which is provided with a coating which comprises molybdenum (VI)-trioxide. In such display screens, the advantages of the efficient sulphide or selenide-containing phosphors can be used and said display screens remain bright and rich in contrast for a long period of time because the coating, which comprises molybdenum (VI)-trioxide, surprisingly acts as a stabilizing protective coating which limits the corrosion processes in sulphide and/or selenide-containing phosphors induced by low-energy radiation.
摘要:
The invention relates to a display screen comprising a phosphor composition of a sulphide and/or selenide-containing phosphor which is provided with a coating which comprises one or more catena-polyphosphates of one or more alkaline earth metals, zinc, cadmium and/or manganese. In such a display screen, in particular a low-energy cathode ray display screen, the advantages of the efficient sulphide or selenide-containing phosphors can be used and said display screen remains bright and rich in contrast for a long period of time because the coating acts as a stabilizing protective coating which limits the corrosion processes in sulphide and/or selenide-containing phosphors induced by low-energy radiation.
摘要:
The invention relates to a display screen comprising a phosphor composition of a sulphide and/or selenide-containing phosphor which is provided with a coating which is composed of germanium disulphide and/or germanium diselenide. In such a display screen, in particular a low-energy cathode ray display screen, the advantages of the efficient sulphide or selenide-containing phosphors can be used and said display screen remains bright and rich in contrast for a long period of time because the coating, which is composed of germanium disulphide and/or germanium diselenide, surprisingly acts as a stabilizing protective coating which limits the corrosion processes in sulphide and/or selenide-containing phosphors induced by low-energy radiation.