Patent ID: 6592420
Filing Date: 2003-07-15
Classification: H01J

Abstract:
A method for manufacturing a glass substrate on one surface of which a phosphor layer has been formed, the glass substrate being used for a front panel of a color cathode ray tube, and the manufacturing method comprising:an application process for applying, onto an inner surface of a glass substrate on which a phosphor pattern in at least one color has already been formed, a phosphor slurry of another color; a spreading process for rotating the glass substrate about an axis located at the approximate center of the inner surface to make the phosphor slurry spread out over the inner surface of the glass substrate; a draining process for tilting the glass substrate to a first tilt angle of more than 90Â° to drain excess slurry off the inner surface of the glass substrate, a tilt angle being formed between a vertical axis and an axis orthogonal to an outer surface of the glass substrate; and a spinning process for returning the glass substrate to a second tilt angle smaller than the first tilt angle, and rotating the glass substrate.