US 12,265,672 B2
Touch detection device with touch control integrated circuit and display device including the same
Jung Hak Kim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Aug. 3, 2023, as Appl. No. 18/364,834.
Claims priority of application No. 10-2022-0174834 (KR), filed on Dec. 14, 2022.
Prior Publication US 2024/0201811 A1, Jun. 20, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04164 (2019.05) [G06F 3/0412 (2013.01); G06F 3/04166 (2019.05); G06F 3/0446 (2019.05); G06F 2203/04111 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A touch detection device comprising:
a touch area including a plurality of driving electrodes and a plurality of detecting electrodes crossing the plurality of driving electrodes;
a plurality of touch driving integrated circuits (ICs) electrically connected to the plurality of driving electrodes and configured to supply driving signals to the plurality of driving electrodes;
a plurality of touch detecting ICs electrically connected to the plurality of detecting electrodes and configured to receive touch detection signals from the plurality of detecting electrodes; and
a touch control IC configured to control the plurality of touch driving ICs and the plurality of touch detecting ICs;
a sub-board, on which the plurality of touch driving ICs and the plurality of touch detecting ICs are mounted;
a plurality of flexible circuit boards connected to a touch peripheral area positioned to one side of the touch area, wherein each of a plurality of display driving ICs is mounted on a corresponding flexible circuit board among the plurality of flexible circuit boards;
a circuit board on which the touch control IC is mounted; and
a connection member connecting the sub-board and the circuit board, wherein:
the touch area is divided into a plurality of sub-touch areas,
the plurality of touch driving ICs are provided to correspond to the plurality of sub-touch areas, respectively, and
the plurality of touch detecting ICs are provided to correspond to the plurality of sub-touch areas, respectively.