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Active matrix display panel having plural stripe-shaped counter electrodes and method of driving the same

  • US 4,973,135 A
  • Filed: 02/21/1989
  • Issued: 11/27/1990
  • Est. Priority Date: 08/22/1984
  • Status: Expired due to Term
First Claim
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1. A display panel comprising:

  • an active matrix base plate comprising a plurality of thin film transistors disposed along a plurality of rows and a plurality of columns so as to form a matrix, each thin film transistor having a first terminal as a source or drain, a second terminal as a gate and a third terminal as the drain or source;

    the first terminals of the transistors disposed along one of the rows being commonly connected to one of a plurality of first signal lines, the second terminals of the transistors disposed along one of the columns being commonly connected to one of a plurality of second signal lines, and the third terminal of each of the transistors being connected to one of a plurality of first electrodes;

    a counter base plate disposed opposite to the active matrix base plate comprising a first plurality of stripe-shaped second electrodes as third signal lines, said first plurality of second electrodes being divided into plural groups each comprising a second plurality of second electrodes, one of said plurality of first electrodes on the matrix being disposed opposite to a group of the second plurality of second electrodes on the counter base plate so as to define a picture element;

    a liquid crystal disposed between the active matrix base plate and the counter base plate; and

    means for applying a first scanning signal to the third signal lines, for applying a second scanning signal to the first signal lines, and for applying a display signal to the second signal lines, wherein the first scanning signal is sequentially applied to the third signal lines in a period designated by application of the second scanning signal to a selected first signal line.

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