公开(公告)号：US11775108B2

公开(公告)日：2023-10-03

申请号：US17246644

申请日：2021-05-02

申请人： FOCALTECH ELECTRONICS, LTD.

发明人： Lianghua Mo ,  Xinxi Jiang ,  Junqiao Liu

IPC分类号： G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G09G3/36 ,  G06F3/044

CPC分类号： G06F3/04166 ,  G02F1/13338 ,  G02F1/13439 ,  G06F3/0412 ,  G09G3/3655 ,  G09G3/3677 ,  G09G3/3688 ,  G06F3/0443 ,  G09G2310/0248 ,  G09G2310/0281 ,  G09G2310/08

摘要： A touch display apparatus, a corresponding driving circuit, and a driving method are provided. The touch display apparatus includes a driving circuit configured to, during the touch sensing stage, provide a first signal to a common electrode for realizing touch detection during the touch sensing stage, a second signal used to control a thin film transistor of the touch display apparatus to be switched off and is used to decrease charge and discharge capacity of a capacitor formed by the common electrode and the gate line, and a third signal used to decrease charge and discharge capacity of a capacitor formed by the common electrode and a data line. The third signal is used to control the data line to enter a floating state during the touch sensing stage.

公开(公告)号：US10073562B2

公开(公告)日：2018-09-11

申请号：US15108213

申请日：2014-02-14

申请人： FOCALTECH ELECTRONICS, LTD.

发明人： Lianghua Mo ,  Xinxi Jiang ,  Junqiao Liu

IPC分类号： G06F3/041 ,  G02F1/1343 ,  G09G3/36 ,  G06F3/044 ,  G02F1/1333

CPC分类号： G06F3/0418 ,  G02F1/13338 ,  G02F1/13439 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3655 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2310/0281 ,  G09G2310/08

摘要： A touch display apparatus, a corresponding driving circuit, and a driving method. The touch display apparatus includes a common electrode between a first substrate and a second substrate, and a driving circuit used as a touch sensing electrode during a touch sensing phase. The driving circuit is used for providing a first signal for touch detection to the common electrode. The driving circuit is also used for providing a second signal to a gate line during the touch sensing phase, said second signal enabling a thin-film transistor to be in off mode and decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a gate line. The driving circuit is also used for providing a third signal during the touch sensing phase, the third signal decreasing the charge-discharge capacity of a capacitor formed by the common electrode and a data line.