Proportioning the address and data signals in a r.m.s. responsiv

Details Proportioning the address and data signals in a r.m.s. responsiv Proportioning the address and data signals in a r.m.s. responsiv

1974-04-01

1976-05-04

Curtis, Marshall M.

Communications: electrical

Systems

Portable self-contained

350160LC, G02F 118

Patent

active

039551873

ABSTRACT:
An improved matrix address system is disclosed wherein zero cross-talk and maximum contrast are obtained by utilizing a constant absolute magnitude data signal, and address and data signals in a voltage ratio equal to the square root of n, where n is the number of addressable columns and therefore the number of devices in a given row, so as to yield the maximum ratio, R, of the r.m.s. values of the "on" voltage and the "off" voltage applied to any given device, namely, R = 1 + 1/.sqroot.n.

REFERENCES:
patent: 3794990 (1974-02-01), Kishimoto
Two-Freq., Compensated Threshold Multiplexing of L. C. Displays, Alt et al., IBM Tech. Discl. Bull., Oct. 1973, Vol. 16, No. 5, pp. 1578-1581.

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