Glass panel for a cathode ray tube

Details Glass panel for a cathode ray tube Glass panel for a cathode ray tube

1998-01-26

1999-10-12

Moy, Joseph M.

Receptacles

Envelope for electric lamp or similar device

Tv tube

313477R, H01J 2986

Patent

active

059643641

ABSTRACT:
A glass panel for a cathode ray tube including a substantially rectangular face portion and a skirt portion. Further constituting a side wall of the face portion, a compressive stress layer having a thickness of at least 1/10 of the thickness of the face portion, is formed on each of the inner and outer surfaces of a useful screen area of the face portion, so as to satisfy 0.4.ltoreq..sigma..sub.di /.sigma..sub.ci .ltoreq.1.0, where .sigma..sub.ci is the compressive stress on the inner surface at the center of the useful screen area, and .sigma..sub.di is the compressive stress on the inner surface in the vicinity of ends of diagonal axial lines of the useful screen area.

REFERENCES:
patent: 5445285 (1995-08-01), Sugawara et al.
patent: 5536995 (1996-07-01), Sugawara et al.

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