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Thin film transistor circuit and semiconductor display device using the same

  • US 6,268,842 B1
  • Filed: 04/09/1999
  • Issued: 07/31/2001
  • Est. Priority Date: 04/13/1998
  • Status: Active Grant
First Claim
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1. A semiconductor device comprising at least:

  • a differential circuit including x (x is a natural number not less than

         2) input-side thin film transistors which have a common gate electrode potential and to which a signal is inputted, and x output-side thin film transistors which have a common gate electrode potential and from which a signal is outputted; and

    a current mirror circuit including y (y is a natural number not less than

         2) input-side thin film transistors and y output-side thin film transistors, which have a common gate electrode potential, the gate electrodes of y input-side thin film transistors being connected to sources/drains of y input-side thin film transistors.

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