US 12,354,526 B2
Display device to measure blood pressure
Chul Kim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Feb. 17, 2023, as Appl. No. 18/170,647.
Claims priority of application No. 10-2022-0079719 (KR), filed on Jun. 29, 2022.
Prior Publication US 2024/0000389 A1, Jan. 4, 2024
Int. Cl. G09G 3/32 (2016.01); G06F 3/041 (2006.01); G06F 3/0481 (2022.01); G06F 3/04883 (2022.01); G06V 40/13 (2022.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/32 (2013.01) [G06F 3/0412 (2013.01); G06F 3/0414 (2013.01); G06F 3/0416 (2013.01); G06F 3/0481 (2013.01); G06F 3/04883 (2013.01); G06V 40/1318 (2022.01); G09G 3/2096 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2354/00 (2013.01); G09G 2380/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
display pixels comprising light emitting elements arranged in a display area of a display panel and pixel drivers connected to the light emitting elements;
light sensing pixels comprising light sensing elements arranged in the display area and sensing drivers connected to the light sensing elements;
a display scan driver configured to sequentially supply display scan signals to the pixel drivers;
a light sensing driver configured to sequentially supply sensing scan signals to the sensing drivers;
a pressure sensing unit disposed on the display panel to sense pressure applied at a randomly set position of a touch area of the display panel by a body part of a user to generate a pressure sensing signal;
a blood pressure detection circuit configured to measure a blood pressure of a user using light sensing signals received from the sensing drivers; and
a display driving circuit configured to supply control signals to the display scan driver and the light sensing driver to control a light sensing signal detection timing of the light sensing pixels and randomly set the position of the touch area when a mode of the display device is switched to a blood pressure measurement mode, and
wherein the display driving circuit controls a data driver and the display scan driver such that a preset pressurization information display image is displayed on the display area, and a pressure change according to pressure data based on the pressure sensing signal is displayed as the pressurization information display image in real time.