US 11,995,265 B2
Display device having a sensing controller for controlling the driving of an input sensing layer
Jiyeong Lee, Seoul (KR); Hyun-Wook Cho, Yongin-si (KR); Sangkook Kim, Cheonan-si (KR); Taejoon Kim, Seongnam-si (KR); Hyungbae Kim, Hwaseong-si (KR); and Jaehyun Park, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Sep. 29, 2022, as Appl. No. 17/955,794.
Claims priority of application No. 10-2021-0176610 (KR), filed on Dec. 10, 2021.
Prior Publication US 2023/0185402 A1, Jun. 15, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/12 (2023.01)
CPC G06F 3/04166 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05); H10K 59/12 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel that displays an image;
an input sensor disposed on the display panel, the input sensor sensing an external input; and
a controller that controls driving of the input sensor, wherein
the input sensor includes:
a plurality of scanning electrodes arranged in a first direction and extended in a second direction crossing the first direction; and
a plurality of sensing electrodes arranged in the second direction and extended in the first direction, wherein the plurality of sensing electrodes are electrically insulated from and cross the plurality of scanning electrodes,
the controller simultaneously transmits input scanning signals to at least two scanning electrodes of the plurality of scanning electrodes during a group scanning period,
the group scanning period includes a plurality of scanning periods, and
the controller transmits a compensating signal to at least one sensing electrode of the plurality of sensing electrodes during at least one scanning period of the plurality of scanning periods, and
the compensating signal has a phase different from a phase of at least one of the input scanning signals applied to at least one of the scanning electrodes.