Shadow mask for cathode ray tube and manufacturing method thereof
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United States of America Patent
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N/A
Issued Date -
Feb 17, 2005
app pub date -
Jul 30, 2004
filing date -
Aug 14, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a cathode ray tube comprising a panel of which inner surface is coated with a fluorescent screen, a funnel connected to the panel, an electron gun housed in the funnel, emitting electron beams, a deflection yoke for deflecting the electron beams, and a shadow mask for discriminating the electron beams in colors, wherein the shadow mask is made of AK (Aluminum Killed) steel, a Fe--Ni alloy layer is deposited on at least one surface of the shadow mask, and an electron reflecting film is formed on the shadow mask opposed to the electron gun.
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