Reduced connection for 22 character gas panel

Details Reduced connection for 22 character gas panel Reduced connection for 22 character gas panel

1977-05-26

1979-04-17

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340166EL, 340752, 340789, G06F 314

Patent

active

041503635

ABSTRACT:
In driving gas panel or plasma display devices, characters are generated on the panel display as a sequence of dots by applying appropriate drive signals to selected orthogonal conductors, each conductor requiring an associated driver. In a low character count small plasma display such as a single row display utilizing a 5.times.7 dot character matrix, a significant load is presented to the horizontal drivers, while a substantial number of drivers are required to drive the vertical axis. To improve the load distribution and increase the drive efficiency of such a system, the horizontal conductors are divided into four distinct groups, with associated drivers, while a single set of vertical conductors is used to drive the vertical conductors, which are positioned to intersect each of the groups of horizontal conductors. The individual load requirements as well as the number of vertical drivers are reduced by a factor of four at a nominal increase in the number of horizontal drivers, thereby providing a significant cost reduction. The specific wiring pattern used to achieve this result on a plasma display device is disclosed herein.

REFERENCES:
patent: 3760403 (1973-09-01), Kippenhan
patent: 3878430 (1975-04-01), Hirose
patent: 3898642 (1975-08-01), Dorey et al.
patent: 3934241 (1976-01-01), Weigert
patent: 3987617 (1976-10-01), Slob

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