Abstract: An aluminized luminescent viewing-screen structure for a cathode-ray tube includes a carbon particle layer in contact with the aluminum layer. The carbon-particle layer is substantially free from metal-ion-containing materials, particularly compounds of alkali and alkaline earth metals.A viewing-screen structure comprising a light-reflective aluminum metal layer having a carbon-particle layer thereon may be made by: (a) depositing on the metal layer a coating of organic, volatilizable, film-forming material, (b) depositing on the coated metal layer an over-coating of carbon particles that is substantially free from substances which, when incinerated, produce metal-ion-containing residues and (c) then baking the screen and support in air at about 400.degree. to 450.degree. C to remove organic and volatile matter.

Abstract: In the method of making a cathode-ray tube comprising a luminescent-viewing-screen structure including an aluminum metal layer in contact with a layer of carbon particles, the steps soon after the faceplate panel is heat sealed to the funnel, of flushing the still-hot assembly with a dry noncontaminating gas, such as nitrogen or air, then cooling the assembly to room temperature and then reflushing the assembly with a dry noncontaminating gas, and then capping the assembly with a temporary closure. The assembly so conditioned can be held or stored for a relatively long term between the heat sealing step and the subsequent manufacturing steps without degradation of the conductivity or reflectivity of the aluminum metal layer.