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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication date
Application filed by Mitsubishi Electric CorpfiledCriticalMitsubishi Electric Corp
Priority to JP2709579ApriorityCriticalpatent/JPS55119332A/en
Publication of JPS55119332ApublicationCriticalpatent/JPS55119332A/en
PURPOSE: To reduce the deterioration of the picture tube characteristics due to vibration, by supporting a shadow mask with a predetermined number of pins and springs, forming a fluorescent screen, and then increasing the number of pins and springs supporting the shadow mask.
CONSTITUTION: There are a right hand side, an upper side, and a left hand side pins 6 at AWC, and there is no pin at D, and the pins 6 at AWC and a spring 7 are used to support a shadow mask 4 during the application of a fluorescent screen 3. In the next step, thus completed panel and the funnel portion 8 are sealed together at their sealing face with first glass etc. When the funnel is sealed, a pin, same as the pins 6 at AWC, is bonded in a pin hole of the spring 7 at D under a predetermined spring pressure with frit glass etc. In this case, the frit glass is in a melted state at near the maximum temperature, and it gives almost no influence upon the relation between the pin 6 at AWC and the spring when it is cooled to fasten the pins. Thus, the vibration resisting property can be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP2709579A1979-03-071979-03-07Method for manufacturing color picture tube
PendingJPS55119332A
(en)
Cathode ray tube with a luminescent screen, process for manufacturing a screen for such a tube and television picture projection tube with such a screen