US 11,681,391 B2
Display device and method of driving the same
Il Ho Lee, Hwaseong-si (KR); Sanghun Park, Cheonan-si (KR); Jihoon Kim, Suwon-si (KR); and Yongsub So, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 13, 2021, as Appl. No. 17/401,695.
Claims priority of application No. 10-2020-0157971 (KR), filed on Nov. 23, 2020.
Prior Publication US 2022/0164083 A1, May 26, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04164 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05)] 18 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 and configured to sense an input, wherein the input sensor comprises a first area and a second area; and
a sensor controller connected to the input sensor, wherein the input sensor further comprises:
first sensing electrodes disposed in the first area;
second sensing electrodes disposed in the second area; and
a boundary sensing electrode overlapping a boundary between the first and second areas, wherein the boundary sensing electrode forms a mutual capacitor with one or more of the first sensing electrodes that are adjacent to the boundary sensing electrode, and forms a mutual capacitor with one or more of the second sensing electrodes that are adjacent to the boundary sensing electrode, wherein the sensor controller comprises a first sensor control circuit electrically connected to the first sensing electrodes and a second sensor control circuit electrically connected to the second sensing electrodes, and wherein the first sensor control circuit drives the first sensing electrodes to sense the input using self-capacitance in a first mode, and the second sensor control circuit drives the second sensing electrodes to sense the input using the self-capacitance in the first mode, and wherein one of the first and second sensor control circuits drives the one or more of the first sensing electrodes and one or more of the second sensing electrodes using mutual capacitance with the boundary sensing electrode in a second mode.