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Display device with imaging function and method for driving the same

  • US 9,370,074 B2
  • Filed: 11/03/2011
  • Issued: 06/14/2016
  • Est. Priority Date: 11/05/2010
  • Status: Active Grant
First Claim
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1. A display device with an imaging function, comprising:

  • a plurality of display elements arranged in matrix each comprising;

    a first light-emitting element; and

    a first color filter;

    a plurality of imaging elements arranged in matrix each comprising;

    a second light-emitting element;

    a second color filter;

    a third color filter;

    a photodiode;

    a first transistor, one of a source and a drain of the first transistor being electrically connected to the photodiode;

    a second transistor, a gate of the second transistor being electrically connected to the other of the source and the drain of the first transistor;

    a third transistor, one of a source and a drain of the third transistor being electrically connected to the second light-emitting element; and

    a fourth transistor, one of a source and a drain of the fourth transistor being electrically connected to a gate of the third transistor; and

    an imaging light source driver circuit,wherein a gate of the fourth transistor in all of the plurality of imaging elements is electrically connected to the imaging light source driver circuit thorough a first common wiring,wherein the other of the source and the drain of the fourth transistor in all of the plurality of imaging elements is electrically connected to the imaging light source driver circuit through a second common wiring,wherein the first light-emitting element and the second light-emitting element are capable of emitting white light,wherein the second color filter and the third color filter overlap each other,wherein the first color filter is provided directly above the first light-emitting element,wherein the second color filter and the third color filter are provided directly above the second light-emitting element,wherein each of the first color filter, the second color filter and the third color filter has a property of transmitting visible light, andwherein each of the second color filter and the third color filter has a property of transmitting invisible light.

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