Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1996-03-19
1997-12-16
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313402, 313404, H01J 2980
Patent
active
056989385
ABSTRACT:
A frame structure which can reduce the howling phenomena generated by the vibration of computer monitors or television sets. The frame structure is mounted within a cathode-ray tube and has a hollow rectangular shape within which a shadow mask can be inserted and fixed. Each corner of the frame is formed with a recessed step to increase the stiffness of the frame.
REFERENCES:
patent: 4362963 (1982-12-01), Puhak
patent: 4461971 (1984-07-01), Puhak
patent: 5072150 (1991-12-01), Lee
Jeong Bong Kyo
Kim Seog Gwan
Kim Sung Dae
Seo Jang Weon
Haynes Mach
LG Electronics Inc.
O'Shea Sandra L.
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