US 12,386,467 B2
Electronic device configured to sense a pen
Hyungbae Kim, Yongin-si (KR); Gayoung Kim, Yongin-si (KR); and Sanghyun Lim, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 30, 2024, as Appl. No. 18/821,771.
Claims priority of application No. 10-2023-0149722 (KR), filed on Nov. 2, 2023.
Prior Publication US 2025/0147628 A1, May 8, 2025
Int. Cl. G06F 3/044 (2006.01)
CPC G06F 3/0442 (2019.05) 11 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a sensor layer including a peripheral region having a first peripheral region and second peripheral region, and a main region between the first peripheral region and the second peripheral region; and
a sensor driver configured to drive the sensor layer,
wherein the sensor layer further comprises:
a plurality of first sensing electrodes arranged along a first direction;
a plurality of first electrodes arranged along the first direction, and overlapping the plurality of first sensing electrodes, respectively;
a plurality of second sensing electrodes arranged along a second direction crossing the first direction; and
a plurality of lines in the peripheral region and comprising:
a first line electrically connected to one of the plurality of second sensing electrodes and in the first peripheral region;
a second line electrically connected to another one of the plurality of second sensing electrodes and in the second peripheral region,
a third line connected to a first end of one of the plurality of first electrodes; and
a fourth line connected to a second end of the one of the plurality of first electrodes,
wherein, in a driving mode to generate a magnetic field for charging a pen, the sensor driver is configured to apply a first signal to the third line and a second signal, different from the first signal, to the fourth line at a first time, and
wherein, in a sensing mode to sense an input of the pen, the sensor driver is configured to apply a first weighting value to a first sensing signal received from the first line and a second weighting value, different from the first weighting value, to a second sensing signal received from the second line.