Color cathode-ray tube
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United States of America Patent
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Jun 5, 2007
Grant Date -
Mar 23, 2006
app pub date -
Sep 21, 2005
filing date -
Sep 21, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Optical filter layers that transmit only light with a desired wavelength are provided in a non-formation region of an optical absorbing layer formed on an inner surface of a glass panel, and phosphor layers that emit either one of red, green, and blue light are provided on the optical filter layers. The optical filter layers transmit blue light. Assuming that the thickness of the optical filter layer underlying the phosphor layer that emits blue light is t1, and the thickness of the optical filter layers underlying the phosphor layers that emit red and green light is t2, a relationship: t1>t2 is satisfied. Because of the above configuration, a color cathode-ray tube is provided, which can be produced at low cost with satisfactory yield with less peeling of a phosphor layer.
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