Flat panel display screen with programmable gamma functionality

  • US 6,359,389 B1
  • Filed: 06/09/2000
  • Issued: 03/19/2002
  • Est. Priority Date: 06/09/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A monitor comprising:

  • a) a flat panel display comprising;

    a matrix of pixels;

    row drivers coupled to said matrix; and

    column drivers coupled to said matrix, said row and column drivers for converting digital color data into voltages for application to said matrix;

    b) a timing controller circuit operable to produce timing signals for sequencing digital data to said row and column drivers;

    c) a reference voltage circuit for providing a plurality of discrete analog reference voltages;

    d) an adjustment circuit coupled to said reference voltage circuit and operable to produce a plurality of adjusted discrete analog reference voltages supplied to said row and column drivers, said adjustment circuit operable to alter the gamma profile of said flat panel display without degrading its gray scale resolution; and

    e) a controller device for generating control signals, said control signals for controlling said adjustment circuit to selectively implement a desired gamma profile of said flat panel display and wherein said controller device is a software controller device.

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