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Light sensitive display

  • US 20030156087A1
  • Filed: 11/27/2002
  • Published: 08/21/2003
  • Est. Priority Date: 02/20/2002
  • Status: Active Grant
First Claim
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1. A liquid crystal device comprising:

  • (a) a front electrode layer;

    (b) a rear electrode layer;

    (c) a liquid crystal material located between said front electrode layer and said rear electrode layer;

    (d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;

    (e) said rear electrode layer comprising a plurality of select electrodes and a plurality of data electrodes such that one of said select electrodes in combination with a plurality of said data electrodes selectively change said electrical potential for a plurality of different portion of said liquid crystal material;

    (f) a first transistor comprising;

    (i) a first terminal;

    (ii) a second terminal;

    (iii) a third terminal;

    (g) a second transistor comprising;

    (i) a first terminal;

    (ii) a second terminal;

    (iii) a third terminal;

    (h) said first terminal of said first transistor electrically interconnected to a conductive electrode;

    (i) said second terminal of said first transistor electrically interconnected to said conductive electrode;

    (j) said first terminal of said first transistor and said second terminal of said first transistor electrically interconnected to one another;

    (k) said second terminal of said first transistor is a gate of said first transistor;

    (l) said third terminal of said first transistor electrically interconnected to said first terminal of said second transistor;

    (m) said second terminal of said second transistor electrically connected to one of said select electrodes;

    (n) said second terminal of said second transistor is a gate of said second transistor;

    (o) said third terminal of said second transistor is electrically interconnected to a readout system;

    (p) said second transistor substantially inhibited from receiving ambient light thereon relative said first transistor receiving ambient light thereon; and

    (q) said first transistor and said second transistor being together with said rear electrode layer.

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