Image display devices

Details Image display devices Image display devices

1977-08-09

1979-03-20

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

3151693, 340166EL, 358241, 340798, H01J 1748

Patent

active

041456858

ABSTRACT:
An image display device comprising a plurality of elements which can be made luminous is described. The elements are arranged in a matrix formed by rows and columns, and each column of the matrix is piloted by as many outputs of a delay line of the charge displacement type, fed by a video signal representative, for lines, of the image to be reproduced and by a clock signal. The main feature of the device is that the delay of the line is substantially equal to the effective duration of information in one line of the video signal, and that there are provided means for interrupting the passage of the clock signal to the delay line during a substantial period of time within the line blanking interval of the video signal, so that during the said period the status of the charges in the delay line remains unchanged, and said status is utilized to render luminous a row of the elements.

REFERENCES:
patent: 3096516 (1963-07-01), Pendelton et al.
patent: 3263028 (1966-07-01), Shanafelt et al.
patent: 3513258 (1970-05-01), Rackman
patent: 3674928 (1972-07-01), Yoshiyama et al.
patent: 3696393 (1972-10-01), McDonald
patent: 3716658 (1973-02-01), Rackman
patent: 3765011 (1973-10-01), Sawyer et al.
patent: 3866209 (1975-02-01), Weimer

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