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Electronic device display with monitoring circuitry

  • US 10,643,511 B2
  • Filed: 09/23/2016
  • Issued: 05/05/2020
  • Est. Priority Date: 08/19/2016
  • Status: Active Grant
First Claim
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1. A display system, comprising:

  • a flexible display having an array of pixels;

    a display driver integrated circuit that supplies data to columns of the pixels over data lines;

    gate driver circuitry that supplies control signals to rows of the pixels over gate lines, wherein the gate driver circuitry includes a plurality of switches;

    a crack detection resistor that runs along a peripheral edge of the flexible display, wherein the crack detection resistor has first and second parallel lines that are coupled to form a loop and wherein each of the switches couples the first parallel line to the second parallel line at a different respective location along the first and second parallel lines;

    resistance measurement circuitry in the display driver integrated circuit that is configured to make resistance measurements on the crack detection resistor, wherein the resistance measurement circuitry is configured to process the resistance measurements to determine whether there are cracks in the crack detection line; and

    a flexible printed circuit that is coupled to the flexible display, wherein the display driver integrated circuit is mounted to the flexible printed circuit.

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