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APPARATUS FOR DISPLAY DURATION MODULATION

  • US 3,576,394 A
  • Filed: 07/03/1968
  • Issued: 04/27/1971
  • Est. Priority Date: 07/03/1968
  • Status: Expired due to Term
First Claim
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1. A display system comprising in combination:

  • a. a panel of selectively positioned light valves having Variable light transmitting characteristics;

    b. a light source impinging upon one surface of said light valve panel;

    c. a video signal source;

    d. an address scanner responsive to said video signal source for scanning said light valve panel along its X and Y axis and for intensity modulating said light valve panel along its Z axis;

    e. a plurality of storage members respectively connected in parallel to said light valves;

    f. a plurality of first circuit means respectively connected between said address scanner and said storage members for selectively charging said storage members during a first preselected time period; and

    g. a plurality of second circuit means respectively connected in parallel to said storage members for effectively maintaining the charge on said storage members during a second preselected time period;

    wherein h. said address scanner selectively connects each of said first an second circuit means to its respective storage member respectively during said first and second preselected time periods;

    whereby i. during said first preselected time period each of said storage members selectively pass light to the other side of said panel; and

    whereby j. during said second preselected time period of said storage members are selectively maintained in their light passing condition.

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