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Semiconductor device and display apparatus

  • US 8,513,662 B2
  • Filed: 05/11/2009
  • Issued: 08/20/2013
  • Est. Priority Date: 05/12/2008
  • Status: Active Grant
First Claim
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1. A semiconductor device comprising:

  • a semiconductor element including a semiconductor as a component;

    a mechanism for irradiating the semiconductor with light having a wavelength longer than an absorption edge wavelength of the semiconductor; and

    a dimming mechanism included in the semiconductor element, provided in a part of an optical path through which the light passes, for adjusting at least one selected from the intensity, irradiation time and wavelength of the light,wherein a threshold voltage of the semiconductor element is varied by the light adjusted by the dimming mechanism, andwherein the semiconductor is of amorphous In—

    Ga—

    Zn—

    O (IGZO), amorphous In—

    Zn—

    O (IZO) or amorphous Zn—

    Sn—

    O (ZTO).

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