Display device for providing biometric information using infrared light

A display device comprising:

• display pixels arranged in a display area of a display panel;
• infrared light emitting pixels arranged in the display area to alternate with the display pixels;
• light sensing pixels arranged in the display area to alternate with the infrared light emitting pixels, wherein the light sensing pixels detect light sensing signals based on reflected light reflected from an object;
• a display scan driver supplying display scan signals to the display pixels and the infrared light emitting pixels;
• a light sensing driver sequentially supplying sensing scan signals to the light sensing pixels;
• a component detection circuit for generating biomarker information using the light sensing signals received from the light sensing pixels;
• a touch sensing circuit for detecting coordinate data of a touch position of a user through touch electrodes of a touch sensor;
• and
• a main driving circuit controlling driving timings of the display pixels, the light emitting pixels, the light sensing driver, and the display scan driver,
• wherein the display area comprises:
• an image display area in which only the display pixels are disposed without the infrared light emitting pixels and the light sensing pixels;
• and
• a first reflected light sensing area in which the infrared light emitting pixels are arranged to alternate with the display pixels along a first diagonal row extending diagonally relative to a first direction of the display panel, and the light sensing pixels are arranged to alternate with the display pixels along a second diagonal row adjacent to the first diagonal row,
• where the image display area completely surrounds the reflected light sensing area.

An electronic device including a display device, the display device comprising:

• display pixels arranged in a display area of a display panel;
• infrared light emitting pixels arranged in the display area to alternate with the display pixels along a diagonal direction relative to intersecting first and second directions;
• light sensing pixels arranged in the display area to alternate with the infrared light emitting pixels along the first direction and the second direction, wherein the light sensing pixels detect light sensing signals based on reflected light reflected from an object;
• a display scan driver supplying display scan signals to the display pixels and the infrared light emitting pixels;
• a light sensing driver sequentially supplying sensing scan signals to the light sensing pixels;
• and
• a component detection circuit for generating biomarker information using the light sensing signals received from the light sensing pixels.