Flat cathode ray tube
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 27, 2005
app pub date -
Mar 10, 2005
filing date -
Mar 11, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A flat cathode ray tube comprising a panel having a substantially-flat outer surface and an inner surface having a certain curvature, a funnel coupled to a rear end of the panel to form a hollow vacuum body, an electron gun fitted in a neck portion of the funnel to emit electron beams, and a shadow mask arranged at the inner surface of the panel in a state of being spaced apart by a certain distance from the inner surface of the panel, and formed with a plurality of electron beam slots, wherein the shadow mask has a curvature satisfying, at an optional point on the shadow mask, the condition 'Rh.gtoreq.Rv', where 'Rh' represents a shorter-axis radius of the curvature, and 'Rv' represents a longer-axis radius of the curvature. Using this structure, it is possible to prevent a degradation in the structural strength of the shadow mask.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully