Drive circuit for display panel having display elements disposed

Details Drive circuit for display panel having display elements disposed Drive circuit for display panel having display elements disposed

1982-09-29

1985-02-12

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340784, 340789, 340811, 350333, G09G 329

Patent

active

044994591

ABSTRACT:
First and second drive circuits for sequentially applying drive signals to data lines of a display panel are provided at opposite sides of the display panel. The first and second drive circuits each have a bidirectional shift register for producing sequential scanning pulses which is switched in its data shifting direction in accordance with a control signal. The first and second drive circuits are set reversely in the drive signal generating sequence at their outputs. According to this configuration, the first and second drive circuits can be constructed of the same circuit arrangement, and the necessity of crossing wires between either one of the first and second drive circuits and the display panel can be obviated.

REFERENCES:
patent: 3975085 (1976-08-01), Yamada et al.
patent: 4231640 (1980-11-01), Funada et al.
patent: 4346378 (1982-08-01), Shanks

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