Method of manufacturing a phosphor screen
AssigneeVideocolor
InventorsHimanshu M. Patel, Antimo Pezzulo
Life of this patent
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Abstract
A method of manufacturing a phosphor screen (22) on an interior surface (23) of a faceplate panel (12) is characterized by the steps of: forming a light-absorbing matrix (24) on an interior surface (23) of the faceplate panel (12); applying an aqueous surfactant solution thereto to solubilize oily contaminants and emulsify undissolved oily contaminants of the matrix (24); and serially applying three light-emitting phosphors (G, B, R) to the interior surface (23) of the faceplate panel (12) to form the phosphor screen (22).
Claims4
A method of manufacturing a phosphor screen on an interior surface of a faceplate panel comprising the steps of:
- forming a light-absorbing matrix on an interior surface of said faceplate panel;
- applying an aqueous surfactant solution, containing at least two surfactants, thereto, wherein one of said surfactants has a hydrophile liophile balance (HLB) number greater than 16 to solubilize oily contaminants and the other surfactant has an HLB number less than 11 to emulsify undissolved oily contaminants of said matrix, in combination, said two surfactants also reduce erosion of said matrix;
- and
- serially applying three light-emitting phosphors (G, B, R) to said interior surface of said faceplate panel to form said phosphor screen.
Dependencies are inferred from the claim text.