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1.发明申请公开(公告)号：US20170300146A1
公开(公告)日：2017-10-19
申请号：US15480301
申请日：2017-04-05
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , YongChan PARK , SungChul KIM , Jinseong KIM
CPC classification number: G06F3/044 , G06F3/0414 , G06F2203/04105 , G06F2203/04112 , G09G3/20 , G09G3/2092 , G09G2300/0426 , G09G2310/08
Abstract: The present embodiments relate to a driving circuit and a touch display apparatus for sensing a user's touch position and touch force with respect to a display panel, and further relate to a driving method thereof. The touch display apparatus may include a plurality of first electrodes that are configured to be embedded in a display panel, and a second electrode that is configured to be positioned outside the display panel. The touch display apparatus may read a force sensing signal from the second electrode through a signal detecting unit that is electrically connected to the second electrode. Therefore, it is possible to sense a touch force without separating a force sensing signal from a signal received from the first electrode, and to sense a user's touch force through the driving of the second electrode regardless of the driving mode of the first electrode.
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公开(公告)号：US20170293388A1
公开(公告)日：2017-10-12
申请号：US15478613
申请日：2017-04-04
Applicant: LG DISPLAY CO., LTD.
Inventor： Sungsu HAN , CheolSe KIM , SungChul KIM , Suyun JU
IPC: G06F3/041 , G02F1/1333 , G02F1/1343 , G06F3/044
CPC classification number: G06F3/0416 , G02F1/13338 , G02F1/134309 , G06F3/0412 , G06F3/0414 , G06F3/044
Abstract: A driver circuit, a touch display device, and a method of driving the touch display device. Touching force is sensed by driving a plurality of first electrodes disposed in a display panel and a second electrode located outside of the display panel. The first electrodes corresponding to force sensors for sensing the touching force and the second electrode are driven by alternating in-phase driving and antiphase driving. Touching force components are selectively and accurately extracted from sensing data, and the touching force can be accurately sensed.
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公开(公告)号：US20160004371A1
公开(公告)日：2016-01-07
申请号：US14522561
申请日：2014-10-23
Applicant: LG DISPLAY CO., LTD.
Inventor： SungChul KIM , JuHan KIM , YongChan PARK , Sujin KWON
CPC classification number: G06F3/0412 , G06F3/0418 , G06F3/044 , G09G3/2092 , G09G2300/0426
Abstract: The present invention relates to touch screen panel integrated display panel and display device. The touch screen panel integrated display panel comprises: a common electrode to which a common voltage is applied in a display mode and a touch driving signal is applied in a touch mode; a gate line that transfers a scan signal to a pixel row; and a gate driving integrated circuit that is connected to the gate line and outputs the scan signal to the gate line, wherein the gate driving integrated circuit includes a pull-up transistor and a pull-down transistor for outputting the scan signal to the gate line in the display mode, and additionally includes a touch mode transistor for outputting the touch driving signal applied to the common electrode or a signal corresponding to the touch driving signal to the gate line in the touch mode.
Abstract translation: 本发明涉及触摸屏面板集成显示面板和显示装置。 触摸屏面板集成显示面板包括：以显示模式施加公共电压的公共电极，并且以触摸模式施加触摸驱动信号; 将扫描信号传送到像素行的栅极线; 以及栅极驱动集成电路，其连接到栅极线并将扫描信号输出到栅极线，其中栅极驱动集成电路包括上拉晶体管和用于将扫描信号输出到栅极线的下拉晶体管 并且还包括用于在触摸模式中将施加到公共电极的触摸驱动信号或对应于触摸驱动信号的信号输出到栅极线的触摸模式晶体管。
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4.发明申请公开(公告)号：US20130321296A1
公开(公告)日：2013-12-05
申请号：US13714083
申请日：2012-12-13
Applicant: LG DISPLAY CO., LTD.
Inventor： Junghan LEE , SungChul KIM
IPC: G06F3/041
CPC classification number: G06F3/044 , G06F3/041 , G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F2203/04101 , G09G3/36 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G3/3688 , G09G3/3696 , G09G2310/0272 , G09G2310/0278
Abstract: A display device with an integrated touch screen including a display panel including electrodes divided into a plurality of block type groups and a plurality of data lines; a display driver IC configured to apply a common voltage to the electrodes when a driving mode of the panel is a display driving mode, sequentially apply a touch scan signal to each block type group when the driving mode of the panel is a touch driving mode, and apply a data signal to the data lines associated with a corresponding block type group when the touch scan signal is applied to the corresponding block type group; and a touch IC configured to generate the touch scan signal and apply the touch scan signal to the display driver IC.
Abstract translation: 一种具有集成触摸屏的显示装置，包括：显示面板，包括分为多个块类型组和多个数据线的电极; 配置为当面板的驱动模式为显示驱动模式时向电极施加公共电压的显示驱动器IC，当面板的驱动模式为触摸驱动模式时，顺序地向每个块类型组施加触摸扫描信号， 并且当将触摸扫描信号应用于对应的块类型组时，将数据信号应用于与相应块类型组相关联的数据线; 以及配置为产生触摸扫描信号并将触摸扫描信号施加到显示驱动器IC的触摸IC。
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公开(公告)号：US20250156008A1
公开(公告)日：2025-05-15
申请号：US18920689
申请日：2024-10-18
Applicant: LG Display Co., Ltd.
Inventor： HoonBae KIM , NamYong GONG , SungChul KIM , SunYeop KIM , SungYub LEE , Jongsung KIM
Abstract: A touch display device and a touch driving circuit are discussed. An operation period of the touch display device can include a first touch sensing mode period in which a first touch driving signal having a first amplitude is applied to the touch sensor, and a second touch sensing mode period in which a second touch driving signal having a second amplitude different from the first amplitude is applied to the touch sensor. The first touch driving signal can be sequentially applied to each of a plurality of first touch electrodes during the first touch sensing mode period, and, during the second touch sensing mode period.
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Patent Agency Ranking
公开(公告)号：US20250021182A1
公开(公告)日：2025-01-16
申请号：US18740178
申请日：2024-06-11
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM
IPC: G06F3/041
Abstract: A touch display device and a driving method for the touch display device are disclosed. A touch circuit supplies an uplink signal to a touchscreen panel. A first uplink signal which is a first waveform signal is supplied to a first touch electrode. A second uplink signal which is a second waveform signal is supplied to a second touch electrode. The effect of the uplink signal on display driving is prevented.
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公开(公告)号：US20220057685A1
公开(公告)日：2022-02-24
申请号：US17520143
申请日：2021-11-05
Applicant: LG DISPLAY CO., LTD.
Inventor： SeongKyu KANG , SungChul KIM , HoonBae KIM , SunYeop KIM
IPC: G02F1/1362 , G09G3/36
Abstract: A display device includes a plurality of gate lines; a plurality of data lines; a plurality of pixel electrodes electrically connected with the plurality of data lines; a plurality of common electrodes corresponding to two or more pixel electrodes among the plurality of pixel electrodes; a data driving circuit outputting data voltages to the plurality of data lines; and a driving circuit outputting a first driving signal with a first voltage level to at least one common electrode among the plurality of common electrodes during a first driving period and a second driving signal with a second voltage level and a third voltage level to the at least one common electrode during a second driving period, the second driving signal being a pulse signal, wherein the second voltage level and the third voltage level differ from the first voltage level.
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公开(公告)号：US20210232256A1
公开(公告)日：2021-07-29
申请号：US17230838
申请日：2021-04-14
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM , HoonBae KIM , SunYeop KIM , Seongkyu KANG
Abstract: A touch display device, a driving circuit, and a driving method are provided. An image defect which occurs when display driving and touch driving are simultaneously executed can be reduced by performing control such that a voltage level of a touch electrode driving signal (TDS) varies in a section other than a high-level period (Pon) of an ON-clock signal (ON_CLK) and/or a high-level period (Poff) of an OFF-clock signal (OFF_CLK).
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公开(公告)号：US20170242524A1
公开(公告)日：2017-08-24
申请号：US15222876
申请日：2016-07-28
Applicant: LG Display Co., Ltd.
Inventor： Seungkyeom KIM , SungChul KIM , Sungsu HAN , JiYeon PARK
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.
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公开(公告)号：US20200210018A1
公开(公告)日：2020-07-02
申请号：US16710829
申请日：2019-12-11
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM , HoonBae KIM , SunYeop KIM , Seongkyu KANG
Abstract: A touch display device, a driving circuit, and a driving method are provided. An image defect which occurs when display driving and touch driving are simultaneously executed can be reduced by performing control such that a voltage level of a touch electrode driving signal (TDS) varies in a section other than a high-level period (Pon) of an ON-clock signal (ON_CLK) and/or a high-level period (Poff) of an OFF-clock signal (OFF_CLK).
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