Electric lamp or space discharge component or device manufacturi – Process – Including cleaning
Patent
1998-12-01
2000-01-04
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
Including cleaning
H01J 900
Patent
active
060103868
ABSTRACT:
A method for manufacturing a cathode ray tube includes the steps of applying a black substance to the inner surface of a glass panel, immersing the skirt inner wall and the sealing surface of the glass panel in a glass dissolving liquid for etching, and removing the black substance adhered to the skirt inner wall and the sealing surface by a removing means while spraying a cleaning liquid on the inner surface of the glass panel, thereby forming the desired black matrix film on the front inner wall of the glass panel. Therefore, the excess black substance coating film adhered to the skirt inner wall and the sealing surface of the skirt portion of the glass panel can be removed effectively, and the occurrence of minute flaws that adversely affect the production and life of the cathode ray tube is prevented.
REFERENCES:
patent: 5135420 (1992-08-01), Sumi et al.
Patent Abstracts of Japan, publication No. 08017350A, published Jan. 19, 1996.
Patent Abstracts of Japan, publication No. 05028916A, published Feb. 5, 1993.
Patent Abstracts of Japan, publication No. 06150822A, published May 31, 1994.
Okamoto Masahisa
Yamaguchi Akihiro
Matsushita Electronics Corporation
Ramsey Kenneth J.
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