| CPC A61B 5/6898 (2013.01) [A61B 5/02433 (2013.01); G06F 3/044 (2013.01); G09G 3/3233 (2013.01); G06F 2203/04105 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2354/00 (2013.01); G09G 2360/14 (2013.01); G09G 2380/08 (2013.01)] | 10 Claims |
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1. A display device comprising:
display pixels arranged in a display area of a display panel;
light sensing pixels arranged in the display area;
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 measure a user's biometric information using light sensing signals received from the light sensing pixels,
wherein the main driving circuit displays a preset application program screen during a biometric information measurement period to guide the user's pulse wave signal detection process, and measures the biometric information using pulse wave signals determined to have high accuracy among pulse wave signals detected during the biometric information measurement period,
wherein the main driving circuit displays a touch sensing area touched by the user's body part on the application program screen in the display area,
displays waveforms of the pulse wave signals detected in real time on a display window of the application program screen, and
displays a detection period of the pulse wave signals required to measure the biometric information and a period in which the pulse wave signals are detected,
wherein the main driving circuit generates the pulse wave signals corresponding to magnitudes of the light sensing signals and changes in the magnitudes of the light sensing signals,
calculates an average magnitude value of high pulses and an average magnitude value of low pulses in real time by analyzing changes in magnitudes of the high pulses and magnitudes of the low pulses of the pulse wave signals in real time, and
sets a normal pulse wave signal detection period or an inaccurate pulse wave signal detection period in real time according to a comparison result between the average magnitude value of the high pulses and a preset high threshold and a comparison result between the average magnitude value of the low pulses and a preset low threshold.
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