Display panel for displaying a bar of light

Details Display panel for displaying a bar of light Display panel for displaying a bar of light

1975-07-31

1977-04-12

Rolinec, Rudolph V.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313196, 315169TV, 313220, 313491, H01J 1704, H05B 3700

Patent

active

040177599

ABSTRACT:
The disclosure is of a display panel, known as a bar graph and used for displaying bars of light of varying length. The panel includes an anode and a series of cathode bars, the cathodes being connected in three phases of groups which are formed by a trifilar winding on an insulating base plate. The anode for the panel may be formed on the face plate which is hermetically sealed to the base plate to form a gas-tight envelope which is filled with an ionizable gas.
The principles of the invention can be used to make other types of panels having electrodes connected in groups.

REFERENCES:
patent: 3766420 (1973-10-01), Ogle et al.
patent: 3821586 (1974-06-01), Ogle
patent: 3866090 (1975-02-01), Vangelder et al.

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