LUMINESCENT SCREEN MANUFACTURING PROCESS Russian patent published in 1995 - IPC

FIELD: electronic engineering. SUBSTANCE: suspension is prepared by crushing phosphor in polyvinyl alcohol solution, sensitizer is added keeping following proportion of suspension ingredients, mass percent: phosphor 1-10; polyvinyl alcohol 0.3-0.2; sensitizer 0.01-0.05; water - the rest; phosphor is deposited from suspension onto screen substrate, phosphor layer is fixed, suspension solution is removed, and phosphor layer is dried out. After drying, screen is fixed in addition by heating or exposure to light and treated with solvent followed by washing and drying. Line width obtained in screen manufactured by using this method is 60-90 mcm smaller that in screens made by using known technology (120-140 mcm). EFFECT: reduced width and roughness of phosphor layer which improves resolving power of screen. 6 cl