Gamma reference voltage generator

  • US 7,233,305 B1
  • Filed: 12/23/2003
  • Issued: 06/19/2007
  • Est. Priority Date: 06/11/2003
  • Status: Active Grant
First Claim
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1. An integrated circuit for producing voltage signals on a plurality of outputs comprising:

  • a plurality of non-volatile storage cells;

    circuits for programming coupled to a multiplexer for addressing and programming said storage cells, wherein the addressing is based on a plurality of inputs;

    drivers connected to said storage cells and to the plurality of outputs; and

    the plurality of inputs connected to said multiplexer for addressing said storage cells,wherein said voltage signals are gamma reference voltage signals for determining actual driving voltages of columns of a display, wherein said non-volatile storage cells are organized into two or more banks of cells wherein each bank contains a predetermined gamma reference voltage signal display condition; and

    means to switch between the banks based on one or more external signals is provided on said integrated circuit.

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