公开(公告)号：US20240028160A1

公开(公告)日：2024-01-25

申请号：US18355942

申请日：2023-07-20

申请人： LX SEMICON CO., LTD.

发明人： Moon Ho JANG

IPC分类号： G06F3/041 ,  G06F3/0354

CPC分类号： G06F3/04184 ,  G06F3/03545

摘要： An embodiment relates to a touch sensing device for sensing a touch by using touch electrodes disposed on a display panel. The touch sensing device can generate a touch synchronization signal based on a starting time point of a touch frame and output a touch driving signal for sensing a touch to a panel based on the generated touch synchronization signal.

公开(公告)号：US20230080254A1

公开(公告)日：2023-03-16

申请号：US17940520

申请日：2022-09-08

申请人： LX Semicon Co., Ltd.

发明人： Seong Sik YOON ,  Moon Ho JANG ,  Dal Eun LEE

IPC分类号： G06F1/3218 ,  G06F1/16

摘要： A power management circuit includes a control signal reception circuit configured to receive a power control signal for controlling an operation of the power management circuit in correspondence to a driving mode of a panel, from a microcontroller which receives information on the driving mode of the panel; an output signal change circuit configured to change an output signal of the power management circuit in response to the power control signal; a control target selection circuit configured to select a control target circuit to which the output signal is to be transferred; and an output signal transmission circuit configured to transfer the output signal to the control target circuit.

公开(公告)号：US20230039061A1

公开(公告)日：2023-02-09

申请号：US17817506

申请日：2022-08-04

申请人： LX Semicon Co., Ltd.

发明人： Sik DONGBANG ,  Moon Ho JANG

IPC分类号： G06F3/041

摘要： An embodiment provides a touch circuit including a touch driving circuit supplying touch driving signals to touch electrodes, a touch sensing circuit sensing capacitance changes of the touch electrodes through touch sensing lines, and multiplexers, connected with the touch sensing lines, each transferring a capacitance change of a touch electrode to the touch sensing circuit. Some of the touch electrodes of the touch circuit are selectively short-circuited depending on a driving mode of the touch circuit and the touch electrodes are electrically connected with each other through the connection of nodes of the touch electrodes.