US 12,277,296 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 Sep. 26, 2023, as Appl. No. 18/474,504.
Application 18/474,504 is a division of application No. 17/812,251, filed on Jul. 13, 2022, granted, now 11,816,297.
Claims priority of application No. 10-2021-0146783 (KR), filed on Oct. 29, 2021.
Prior Publication US 2024/0028166 A1, Jan. 25, 2024
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/0442 (2019.05) [G06F 3/04162 (2019.05); G06F 3/0446 (2019.05)] 12 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a display panel;
an input sensor disposed on the display panel,
wherein the input sensor operates in a first mode in which an input generated by an input device is sensed and a second mode in which an input generated by a user's touch is sensed,
wherein the input sensor comprises a first area in which an input position is located and a second area in which the input position is not located,
wherein the first and second areas are defined based on the input position to which the input generated by the input device is applied; and
a sensor controller connected to the input sensor,
wherein the input sensor further comprises a first sensor part extending in a first direction in the first area, a second sensor part extending in a second direction crossing the first direction in the first area, and a compensation part disposed in the second area,
wherein the sensor controller applies a first signal to the first sensor part and the second sensor part and applies a second signal having a phase opposite to a phase of the first signal to the compensation part in the first mode,
wherein the sensor controller alternately applies a first uplink signal and a second uplink signal, which have opposite phases to each other, to first sensing electrodes extending in the first direction and second sensing electrodes extending in the second direction in the second mode, and operates in the first mode when an approach of the input device is sensed via the first sensing electrodes and the second sensing electrodes,
wherein the first sensor part comprises at least one first sensing electrode among the first sensing electrodes, and the second sensor part comprises at least one second sensing electrode among the second sensing electrodes.