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Systems and methods for aging compensation in AMOLED displays

  • US 10,417,945 B2
  • Filed: 04/20/2018
  • Issued: 09/17/2019
  • Est. Priority Date: 05/27/2011
  • Status: Active Grant
First Claim
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1. A system for compensating a pixel in a display array, the system comprising:

  • a pixel circuit for being programmed according to programming information, during a programming cycle, and driven to emit light according to the programming information, during an emission cycle, the pixel circuit comprising;

    a light emitting device for emitting light during the emission cycle,a driving transistor for conveying current through the light emitting device during the emission cycle,a storage capacitor for being charged with a voltage based at least in part on the programming information, during the programming cycle, andan emission control transistor coupled between a first terminal of the storage capacitor and at least one of the light emitting device and the driving transistor, and for disconnecting said first terminal from said at least one of the driving transistor and the light emitting device during the programming cycle,a driver for programming the pixel circuit via a data line by charging the storage capacitor according to the programming information; and

    a controller for operating the driver and configured to;

    receive a data input indicative of an amount of luminance to be emitted from the light emitting device; and

    provide the programming information to the driver to program the pixel circuit, wherein the programming information is based at least in part on the received data input.

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