Driving system for a matrix display panel

Details Driving system for a matrix display panel Driving system for a matrix display panel

1983-08-19

1986-08-05

Brigance, Gerald L.

Communications: electrical

Continuously variable indicating

With meter reading

340784, 358160, G09G 300

Patent

active

046046178

ABSTRACT:
A driving circuit for a matrix display panel synchronizes composite video signals to drive a plurality of data lines and a plurality of scanning lines arranged in a matrix. The driving circuit blocks the data of the composite video signal approximately during the vertical blanking interval of the video signal. Further, during periods when signals are not applied to the data lines, the voltage level is maintained substantially equal on both the scanning and data lines. The RMS potential on the display is thereby reduced and higher contrast is provided. In an alternative embodiment, lines of data are also omitted at regular intervals during the effective display period.

REFERENCES:
patent: 3976362 (1976-08-01), Kawakami
patent: 4156254 (1979-05-01), Marino
patent: 4257045 (1981-03-01), Miles
patent: 4306249 (1981-12-01), Croll
patent: 4385294 (1983-05-01), Miles
patent: 4404555 (1983-09-01), Long et al.
patent: 4462027 (1984-07-01), Lloyd
patent: 4477805 (1984-10-01), Arton et al.
patent: 4511926 (1985-04-01), Crossland et al.
Article entitled, A Pocket-Size Liquid Crystal TV Display, written by E. Kaneko, et al., found in SID, vol. 23/1, 1982, pp. 3-8.

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