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Semiconductor device and method of driving the same

  • US 9,916,793 B2
  • Filed: 05/16/2013
  • Issued: 03/13/2018
  • Est. Priority Date: 06/01/2012
  • Status: Active Grant
First Claim
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1. A semiconductor device comprising:

  • a display pixel comprising;

    a first transistor;

    a second transistor;

    a light-emitting element;

    a first display pixel control signal line; and

    a second display pixel control signal line, anda sensor pixel comprising;

    a third transistor;

    a fourth transistor;

    a light-receiving element;

    a capacitor;

    a first image-capture pixel control signal line; and

    a second image-capture pixel control signal line,wherein a gate terminal of the first transistor and the first display pixel control signal line are electrically connected to each other,wherein a gate terminal of the second transistor and the second display pixel control signal line are electrically connected to each other,wherein a gate terminal of the third transistor and the first image-capture pixel control signal line are electrically connected to each other,wherein a gate terminal of the fourth transistor and the second image-capture pixel control signal line are electrically connected to each other,wherein one of a source terminal and a drain terminal of the first transistor and the light-emitting element are electrically connected to each other at a first node,wherein one of a source terminal and a drain terminal of the second transistor and the light-emitting element are electrically connected to each other at the first node,wherein one of a source terminal and a drain terminal of the third transistor and the light-receiving element are electrically connected to each other,wherein one of a source terminal and a drain terminal of the fourth transistor and another of the source terminal and the drain terminal of the third transistor are directly connected to each other,wherein a first electrode of the capacitor is directly connected to the one of the source terminal and the drain terminal of the fourth transistor, andwherein a second electrode of the capacitor is directly connected to another of the source terminal and the drain terminal of the fourth transistor.

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