US 12,340,038 B2
Touch display device
Jinbong Kim, Suwon-si (KR); Byunghwee Park, Suwon-si (KR); Yeonwoo Ku, Suwon-si (KR); Minsung Kim, Suwon-si (KR); Heejin Lee, Suwon-si (KR); and Yunrae Jo, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 27, 2023, as Appl. No. 18/227,048.
Claims priority of application No. 10-2022-0176214 (KR), filed on Dec. 15, 2022.
Prior Publication US 2024/0201808 A1, Jun. 20, 2024
Int. Cl. G09G 3/3233 (2016.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/20 (2006.01)
CPC G06F 3/0412 (2013.01) [G06F 3/04164 (2019.05); G06F 3/0443 (2019.05); G06F 3/0446 (2019.05); G09G 3/2007 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A touch display device comprising:
a display panel comprising:
a plurality of source lines configured to provide a plurality of source signals to a plurality of pixels, and
a common electrode coupled to the plurality of source lines;
a plurality of touch electrodes coupled to the common electrode, and configured to provide a plurality of touch signals according to a plurality of touch driving signals received from the common electrode; and
a touch driving circuit configured to generate a plurality of pieces of touch information based on a difference between the plurality of touch signals and each of the plurality of touch driving signals, according to gray information displayed by the plurality of pixels.