Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1990-10-11
1992-09-22
Yusko, Donald J.
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
313493, 313497, H01J 3115, H01J 6302
Patent
active
051500051
ABSTRACT:
In a thin film transistor controlled vacuum fluorescent display panel, alkali-free glass is used for an anode substrate. The alkali-free glass plate is provided with thin film transistors and anode-phosphor layers formed thereon. An intermediate glass plate is interposed between the alkali-free glass plate and a vacuum envelope. The value of the coefficient of linear expansion of the intermediate glass plate is selected to be between the value of the coefficient of linear expansion of glass constituting the vacuum envelope and the value of the coefficient of linear expansion of the alkali-free glass plate so as to control the influence of the distortion due to thermal stress of the panel to the anode substrate at the time of manufacture of the panel.
REFERENCES:
patent: 4100965 (1978-07-01), Kobayakawa et al.
patent: 4112329 (1978-09-01), Veith
patent: 4164683 (1979-08-01), Nakamura et al.
patent: 4613399 (1986-09-01), Kobale et al.
patent: 4841194 (1989-06-01), Kishino et al.
"Improvement of Electrical Performance of CdSe TFTs for Application to VFDs" T. Shimojo, S. Okada, H. Kamogawa, and M. Kobayashi; Proceedings of the SID, vol. 29/1, 1988.
NEC Corporation
Yusko Donald J.
Zimmerman Brian
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