| 摘要 |
PURPOSE: To provide a method by which an aluminum oxide film of 1μor more in thickness is simply formed on a cathode-ray tube panel in single applying process. CONSTITUTION: Inside the weirs of a cathode-ray tube panel 1 having the weirs such as skirt portions 3 which can block the outflow of liquid on the periphery, aluminum oxide solution Z which is somewhat more than the necessary amount for film forming is poured, and a panel face 2 is leveled and is left for required time so as to stabilize the viscosity of the aluminum oxide solution Z. The cathode-ray tube panel 1 is tilted by a required angle so as to accumulate the extra aluminum oxide solution Z downward to exhaust from the inside of the weirs by such a method as suction. The panel face 2 is arranged in a level, and the aluminum oxide solution Z on the cathode-ray tube panel 1 is heated, dried, and burnt.
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