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DEFECTIVE PIXEL SPECIFYING METHOD, DEFECTIVE PIXEL SPECIFYING SYSTEM, IMAGE CORRECTING METHOD, AND IMAGE CORRECTING SYSTEM

  • US 20110058074A1
  • Filed: 11/12/2010
  • Published: 03/10/2011
  • Est. Priority Date: 03/01/2001
  • Status: Active Grant
First Claim
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1. A driving method of a device comprising a pixel comprising a transistor and a photoelectric conversion element, the driving method comprising:

  • resetting the photoelectric conversion element by applying a first potential to an n-channel terminal of the photoelectric conversion element;

    flowing a first current corresponding to the first potential in the transistor;

    resetting the photoelectric conversion element by applying the first potential to the n-channel terminal of the photoelectric conversion element;

    flowing a second current corresponding to a second potential in the transistor when the n-channel terminal of the photoelectric conversion element has the second potential after an accumulation time T of the photoelectric conversion element;

    wherein the accumulation time T satisfies an expression T>

    (C×

    Vp)/Id, where C is a capacitance of the photoelectric conversion element, Vp is a voltage applied to both terminals of the photoelectric conversion element when the photoelectric conversion element is reset, and Id is a dark current flowing in the photoelectric conversion element, andwherein the first potential is almost the same as a potential obtained by reading a black calibration sheet, and the second potential is almost the same as a potential obtained by reading a white calibration sheet.

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