公开(公告)号：US20220004282A1

公开(公告)日：2022-01-06

申请号：US17306447

申请日：2021-05-03

Applicant: LG Display Co., Ltd.

Inventor： Yangsik LEE ,  HwiDeuk LEE ,  Sungsu HAN

IPC: G06F3/044 ,  G06F3/041

Abstract: Embodiments of the present disclosure are related to a touch display device, as a portion of a touch routing line is disposed on an area surrounded by a touch electrode line on an active area and is electrically connected to the touch electrode line, the touch routing line can be disposed on the active area while reducing an influence of a noise. Thus, as an additional arrangement of the touch routing line and a free adjustment of a connecting point of the touch routing line become possible without an increase of an area for arranging the touch routing line, a load by the touch routing line and a difference of a sensitivity according to positions of the touch electrode line are reduced and a performance of a touch sensing can be improved.

公开(公告)号：US20180150177A1

公开(公告)日：2018-05-31

申请号：US15798161

申请日：2017-10-30

Applicant: LG Display Co., Ltd

Inventor： JuneYoun HWANG ,  BeomJin KIM ,  HyungUk JANG ,  SangHyuck BAE ,  Sungsu HAN ,  Suyun JU ,  DoYoung JUNG

IPC: G06F3/041 ,  G06F3/044 ,  G09G5/00

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G09G5/003

Abstract: There are provided a touch display device, a touch driving circuit, and a touch sensing method. More specifically, a touch display device includes a touch screen panel including a plurality of touch electrodes and a touch driving circuit configured to output a touch driving signal to at least a portion of the plurality of touch electrodes for sensing a touch. Upon detection of an event in which at least one first area of the touch screen panel is set as a touch sensing area and at least one second area of the touch screen panel is set as a non-touch sensing area, the touch driving circuit is configured to output the touch driving signal to one or more of the plurality of touch electrodes that correspond to the at least one first area of the touch screen panel.

公开(公告)号：US20180088729A1

公开(公告)日：2018-03-29

申请号：US15829671

申请日：2017-12-01

Applicant: LG Display Co., Ltd.

Inventor： Seungkyeom KIM ,  SungChul KIM ,  Sungsu HAN ,  JiYeon PARK

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

Abstract: A driving circuit, a touch display device, and a method of driving the touch display device. A plurality of first electrodes are disposed within a display panel. A second electrode is disposed outside of the display panel. A driving circuit detects at least one of a touch position and a touching force of a touch by sequentially applying a first electrode driving signal to at least one first electrode among the plurality of first electrodes and applying a second electrode driving signal to the second electrode in a touch driving period. When a user touches a screen, not only can a touch position be sensed, but also a touching force with which the user presses the screen can also be efficiently sensed. This provides a range of functions that existing touch position-detecting technologies have failed to provide.

公开(公告)号：US20170192591A1

公开(公告)日：2017-07-06

申请号：US15381410

申请日：2016-12-16

Applicant: LG Display Co., Ltd.

Inventor： Hyunguk JANG ,  Cheolse KIM ,  Sungchul KIM ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU ,  Doyoung JUNG

IPC: G06F3/041 ,  G06F3/038 ,  G06F3/0354

Abstract: A touch sensing system is disclosed. The touch sensing system includes an active stylus pen that generates a first pen driving signal for detecting a touch input in synchronization with a touch driving signal input from a touch screen and a second pen driving signal for detecting an additional input related to an additional function of the active stylus pen in a touch driving period and outputs the first and second pen driving signals to the touch screen; and a touch driving device that applies the touch driving signal to the touch screen, senses the first pen driving signal in a first period of the touch driving period, and senses the second pen driving signal in a second period of the touch driving period.

公开(公告)号：US20160188006A1

公开(公告)日：2016-06-30

申请号：US14961203

申请日：2015-12-07

Applicant: LG DISPLAY CO., LTD.

Inventor： Sungsu HAN ,  SungChul KIM ,  SangHyuck BAE ,  Suyun JU ,  DoYoung JUNG

IPC: G06F3/038 ,  G06F3/041 ,  G06F3/0354

CPC classification number: G06F3/0383 ,  G06F3/03545 ,  G06F3/038 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: Disclosed is a touch screen device for accurately detecting a touch by using a touch pen without having a separate sensor provided in a touch panel. The touch screen device includes a touch screen including a plurality of touch electrodes, a touch driving circuit applying a touch electrode driving signal to the plurality of touch electrodes, and a touch pen receiving the touch electrode driving signal applied to the plurality of touch electrodes and transmitting a pen output signal, synchronized with the received touch electrode driving signal, to the touch screen.

Abstract translation: 公开了一种用于通过使用触摸笔来精确检测触摸的触摸屏设备，而不需要在触摸面板中设置单独的传感器。 触摸屏装置包括具有多个触摸电极的触摸屏，向多个触摸电极施加触摸电极驱动信号的触摸驱动电路，以及接收施加到多个触摸电极的触摸电极驱动信号的触摸笔，以及 将与所接收的触摸电极驱动信号同步的笔输出信号发送到触摸屏。

公开(公告)号：US20150185913A1

公开(公告)日：2015-07-02

申请号：US14478196

申请日：2014-09-05

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAN ,  Seongkyu KANG

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: A touch sensing system includes a plurality of touch sensors, sensing lines connected to the touch sensors, a touch sensing integrated circuit (IC) sensing a touch input using signals received through a plurality of receiving channels, a plurality of differential amplifiers which are formed between the sensing lines and the receiving channels of the touch sensing IC and amplify a difference between touch sensor signals received through adjacent sensing lines, and a multiplexer which connects the adjacent sensing lines to input terminals of each differential amplifier in a forward sensing mode and switches the adjacent sensing lines connected to the input terminals of each differential amplifier in a reverse sensing mode.

Abstract translation: 触摸感测系统包括多个触摸传感器，连接到触摸传感器的感测线，使用通过多个​​接收通道接收的信号来感测触摸输入的触摸感测集成电路（IC）;多个差分放大器， 触摸感测IC的感测线路和接收通道，并且放大通过相邻感测线路接收的触摸传感器信号之间的差异;以及多路复用器，其将相邻感测线路连接到前向感测模式中的每个差分放大器的输入端子，并切换 相邻的感测线以反向感测模式连接到每个差分放大器的输入端。