Patents Represented by Attorney, Agent or Law Firm Martin Underweiser
  • Integrated resistor for measuring touch position in a liquid crystal display device
    Patent number: 6204897
    Abstract: The present invention provides for a liquid crystal display device with a signal layer integrated onto a substrate. Circuitry derives touch position based upon response to signals applied to the signal layer. At least one resistor is integrated onto the substrate. The resistor is coupled between the signal layer and the circuitry. The resistor is formed in conjunction with the signal layer. Preferably, the resistor is part of a resistor network for linearizing resistance of the signal layer in a vertical direction and horizontal direction.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: March 20, 2001
    Assignee: International Business Machines Corporation
    Inventors: Evan George Colgan, James Lewis Levine, Michael Alan Schappert