Abstract: Shadow mask in a color CRT including an electron reflective film formed, starting from a surface of the shadow mask, down to an inside surface of each of holes, or an electron reflective film formed on a surface of the shadow mask facing an electron gun, or on the surface of the shadow mask and an inside tapered surfaces of holes of the shadow mask and another electron reflective film formed on a surface of the electron reflective film formed on the shadow mask facing an electron gun, thereby reducing thermal deformation of the shadow mask, with a consequential reduction of doming, that prevents mislanding of the electron beams, color dispersion of the color CRT, to improve a color purity.

Abstract: A cleaning material of a color cathode ray tube panel is disclosed, which comprises an acidic water-soluble solution and a surfactant, and a cleaning method conducted by using the same and by way of at least one selected from spray manner, supersonic application or dipping method.

Abstract: Shadow mask in a color CRT including an electron reflective film formed, starting from a surface of the shadow mask, down to an inside surface of each of holes, or an electron reflective film formed on a surface of the shadow mask facing an electron gun, or on the surface of the shadow mask and an inside tapered surfaces of holes of the shadow mask and another electron reflective film formed on a surface of the electron reflective film formed on the shadow mask facing an electron gun, thereby reducing thermal deformation of the shadow mask, with a consequential reduction of doming, that prevents mislanding of the electron beams, color dispersion of the color CRT, to improve a color purity.

Abstract: In the method of fabricating a CRT including a sputtering method for forming an anti-static layer and a spin-coating or spray-coating method for forming an anti-reflection layer on a CRT panel, a method of fabricating a low-resistance, anti-reflection CRT is characterized by applying a silicon oxide (SiO2) coating between the anti-static layer and the anti-reflection layer by a sputtering method. As a result, the CRT has enhanced strength of layers and a low surface resistance. Also, the screen is provided with a charge protection function in the surface, with reflectivity of an external light being mitigated. As a result, it is possible to enhance the contrast characteristics of the screen, to avoid leaving fingerprints on the screen, and also to eliminate unpleasant feeling of static electricity.

Abstract: An impregnation type cathode for a cathode ray tube includes a porous cathode piece having electron emission material impregnated therein. The porous cathode piece has a layer of W--Sc (or a layer of W--Sc.sub.2 O.sub.3) on its surface and a layer of alloy formed of at least two elements of a group of elements consisting of Ir, Os, Ru, and Re on the layer of W--Sc (or the layer of W--SC.sub.2 O.sub.