Display device, display module, and electronic device

A display device comprising:

• a first substrate;
• a plurality of first light-emitting elements;
• a plurality of second light-emitting elements;
• a plurality of light-receiving elements;
• a light-blocking layer;
• a first resin layer;
• and
• a second resin layer,
• wherein the plurality of first light-emitting elements and the plurality of light-receiving elements are over the first substrate,
• wherein the first resin layer is over the plurality of first light-emitting elements and the plurality of light-receiving elements,
• wherein the light-blocking layer is over the first resin layer,
• wherein the plurality of second light-emitting elements is over the light-blocking layer,
• wherein the second resin layer is over the plurality of second light-emitting elements,
• wherein each of the plurality of first light-emitting elements is configured to emit visible light toward the second resin layer,
• wherein each of the plurality of second light-emitting elements is configured to emit invisible light toward the second resin layer,
• wherein each of the plurality of light-receiving elements is a photoelectric conversion element having sensitivity to the visible light and the invisible light,
• wherein in a plan view, the light-blocking layer comprises a portion between one of the plurality of first light-emitting elements and one of the plurality of light-receiving elements and a portion between another of the plurality of first light-emitting elements and another of the plurality of light-receiving elements,
• wherein in a cross-sectional view, each of the plurality of second light-emitting elements overlaps with the light-blocking layer, and
• wherein two adjacent second light-emitting elements of the plurality of second light-emitting elements are electrically connected with each other by a conductive layer.