US 12,029,542 B2
Display device
Seungwook Chun, Daegu (KR); Yuna Kim, Seoul (KR); Yun-Ho Kim, Hwaseong-si (KR); Chul Kim, Hwaseong-si (KR); Soojung Lee, Suwon-si (KR); and Boram Choi, Asan-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 24, 2021, as Appl. No. 17/357,949.
Claims priority of application No. 10-2020-0124274 (KR), filed on Sep. 24, 2020.
Prior Publication US 2022/0087566 A1, Mar. 24, 2022
Int. Cl. G06F 3/041 (2006.01); A61B 5/0537 (2021.01)
CPC A61B 5/0537 (2013.01) [G06F 3/04164 (2019.05); G06F 3/04166 (2019.05); G06F 2203/04112 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel configured to display an image;
an input sensor disposed on the display panel, the input sensor comprising transmission electrodes and reception electrodes electrically insulated from the transmission electrodes; and
a readout circuit connected to the input sensor,
wherein:
the readout circuit comprises:
a first transmission/reception circuit electrically connected to the reception electrodes;
a second transmission/reception circuit electrically connected to the transmission electrodes; and
a control circuit that, in a body composition measurement mode for measuring a skin moisture level of a user, is configured to:
transmit a transmission signal to selected ones of the transmission electrodes through the second transmission/reception circuit; and
receive a reception signal from selected ones of the reception electrodes through the first transmission/reception circuit; and
the selected ones of the transmission electrodes and the selected ones of the reception electrodes are less than all of the transmission and reception electrodes, and are pre-selected to minimize a noise component included in the measurement of the skin moisture level of the user.