Color picture tube faceplate panel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 4, 2000
Grant Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Apr 25, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved color picture tube includes a glass envelope comprising a faceplate panel, a funnel and a neck. The faceplate panel has four sides and four corners and includes a transparent rectangular faceplate, having a cathodoluminescent screen on an interior surface thereof, and a sidewall peripherally extending from the faceplate. The end of the sidewall facing the funnel has a seal land that is sealed to the funnel. The improvement comprises the sidewall seal land having a varied width around the periphery of the panel, wherein the widest portions of the sidewall seal land are located along the panel sides and the narrowest portions of the sidewall seal land are located at the corners of the panel. The width of the sidewall seal land is from 5% to 17% less in the corners of the panel than at the centers of the sides of the panel.
First Claim
Family
International Classification(s)
Cited Art Landscape
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