US 12,450,939 B2
Display device capable of sensing pulse wave signals and biometric information
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 Apr. 22, 2024, as Appl. No. 18/642,693.
Claims priority of application No. 10-2023-0117820 (KR), filed on Sep. 5, 2023.
Prior Publication US 2025/0078561 A1, Mar. 6, 2025
Int. Cl. A61B 5/0205 (2006.01); A61B 5/00 (2006.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01); G06V 40/13 (2022.01); G06V 40/60 (2022.01); H10K 59/40 (2023.01)
CPC G06V 40/1318 (2022.01) [A61B 5/742 (2013.01); G06F 3/0416 (2013.01); G06V 40/63 (2022.01); H10K 59/40 (2023.02); A61B 5/681 (2013.01); A61B 5/6898 (2013.01); A61B 5/7221 (2013.01)] 20 Claims
OG exemplary drawing
 
20. 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.