Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1993-11-18
1995-10-31
Yusko, Donald J.
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
313293, 313303, 313493, H01J 162
Patent
active
054632765
ABSTRACT:
A double-faced vacuum fluorescent display of the invention is formed of an outer casing, and first and second display portions. The outer casing includes a base plate, a transparent front plate situated in front of the base plate, and a side member situated between the base plate and the front plate to form a space therebetween. The first display portion is mounted on the base plate, and includes a wiring pattern, an insulating layer with light shielding property, a first anode conductor and a first fluorescent layer. A display on the first display portion can be observed only from the front plate side. The second display portion is mounted on the transparent front plate, and includes a second anode conductor with transparency and a second fluorescent layer. The second display portion has a light transmitting portion for observing the first display portion therethrough. Light by the first fluorescent layer is observed from the light transmitting portion through the transparent front plate, and light by the second fluorescent layer is seen through the transparent front plate and the second anode conductor.
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Iwasa Tadashi
Kawasaki Hiroaki
Narushima Shinichi
Sakurada Hiroshi
Yamaguchi Hiroshi
Day Michael H.
Futaba Corporation
Yusko Donald J.
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