Device for displaying alphanumerical characters

Details Device for displaying alphanumerical characters Device for displaying alphanumerical characters

1979-06-25

1981-05-12

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313512, H05B 3302, H05B 3320, H05B 3322

Patent

active

042674867

ABSTRACT:
Display device for alphanumeric characters manufactured from a block having cavities at the bottom of which electroluminescent diodes are provided. The block is obtained from a plastic material and the cavities are filled with a transparent resin, said plastic material and said resin belonging to groups of materials which cannot adhere together.

REFERENCES:
patent: 3256236 (1966-06-01), Herman et al.
patent: 3609475 (1971-09-01), Kaposhilin
patent: 3711733 (1973-01-01), Skutt
patent: 3772249 (1973-11-01), Morgans
patent: 3780357 (1973-12-01), Haitz
patent: 3840769 (1974-10-01), Yamamoto et al.
patent: 4013916 (1977-03-01), Brown
patent: 4058750 (1977-11-01), Schoberl

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