US 11,816,297 B2
Electronic device having increased input sensing sensitivity
Changbum Kim, Gyeonggi-do (KR); Jina Kang, Hwaseong-si (KR); Jinwoo Kim, Hwaseong-si (KR); and Byeongkyu Jeon, Busan (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jul. 13, 2022, as Appl. No. 17/812,251.
Claims priority of application No. 10-2021-0146783 (KR), filed on Oct. 29, 2021.
Prior Publication US 2023/0138868 A1, May 4, 2023
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0442 (2019.05) [G06F 3/0446 (2019.05); G06F 3/04162 (2019.05)] 16 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a display panel;
an input sensor disposed on the display panel and comprising a plurality of first sensing electrodes extending in a first direction and a plurality of second sensing electrodes extending in a second direction crossing the first direction; and
a sensor controller connected to the input sensor,
wherein a first area and a second area are defined in the input sensor based on an input position to which an input generated by an input device is applied,
the input position is located in the first area and is not located in the second area, and the sensor controller applies a first signal to at least one first sensing electrode disposed in the first area among the first sensing electrodes and to at least one second sensing electrode disposed in the first area among the second sensing electrodes, and applies a second signal having an opposite phase to a phase of the first signal to at least one first sensing electrode disposed in the second area among the first sensing electrodes and to at least one second sensing electrode disposed in the second area among the second sensing electrodes,
wherein the input sensor further comprises:
a first sensor part comprising the at least one first sensing electrode disposed in the first area among the first sensing electrodes; and
a second sensor part comprising the at least one second sensing electrode disposed in the first area among the second sensing electrodes,
wherein the first sensor part crosses the second sensor part with respect to the input position,
the input sensor is operated in a first mode in which the input generated by the input device is sensed and in a second mode in which an input generated by a user's touch is sensed,
the input sensor comprises an active area comprising the first area and the second area, and
the sensor controller determines a width in the second direction of the first sensor part to correspond to about 20 percent to about 40 percent of a width in the second direction of the active area in the first mode, and determines a width in the first direction of the second sensor part to correspond to about 20 percent to about 40 percent of a width in the first direction of the active area.