Glass panel and a cathode ray tube including the same
A glass panel for use in a cathode ray tube includes a face portion for displaying images; a skirt portion extending from a periphery of the face portion backwards; and a blend radius portion for connecting the face portion and the skirt portion. The face portion is provided with an effective screen...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A glass panel for use in a cathode ray tube includes a face portion for displaying images; a skirt portion extending from a periphery of the face portion backwards; and a blend radius portion for connecting the face portion and the skirt portion. The face portion is provided with an effective screen and a wedge portion positioned near a periphery portion of the effective screen. Compressive stress layers are formed on any regions of an inside and an outside surface of the face portion and the skirt portion, and a maximum compressive stress value sigmaFmax of the face portion and a minimum compressive stress value sigmaSmin of the skirt portion satisfy a relationship of sigmaSmin/sigmaFmax |
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