Display device capable of sensing pulse wave signals and biometric information

A display device, comprising:

• a display panel including a display area, the display area including a plurality of display pixels, a plurality of light sensing pixels, and a plurality of infrared light emitting pixels;
• a display scan driver configured to drive the display pixels to emit light;
• a light sensing scan driver configured to drive the light sensing pixels to sense light;
• a touch sensor disposed on a front surface of the display panel and configured to sense a touch and output a touch sensing signal;
• a touch driving circuit configured to generate touch data and touch coordinate data according to a magnitude change and an output position of the touch sensing signal;
• and
• a main driving circuit configured to detect pulse wave signals and measure biometric information using light sensing signals received through the light sensing pixels,
• wherein the main driving circuit is configured to determine a normal pulse wave signal detection period or an inaccurate pulse wave signal detection period at a biometric information measurement start period, change detection conditions of the pulse wave signals at the inaccurate pulse wave signal detection period and re-detect the pulse wave signals, and re-measure the biometric information during the normal pulse wave signal detection period.

An electronic device, comprising:

• a display panel including a display area, the display area including a plurality of display pixels and a plurality of light sensing pixels;
• a display scan driver configured to drive the display pixels to emit light;
• a light sensing scan driver configured to drive the light sensing pixels to sense light;
• and
• a main driving circuit configured to use the light sensing signals received through the light sensing pixels to detect pulse wave signals and measure biometric information,
• wherein the main driving circuit is configured to determine a normal pulse wave signal detection period or an inaccurate pulse wave signal detection period at a biometric information measurement start period, change detection conditions of the pulse wave signals at the inaccurate pulse wave signal detection period and re-detect the pulse wave signals and re-measure the biometric information during the normal pulse wave signal detection period.