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公开(公告)号：US20170192534A1
公开(公告)日：2017-07-06
申请号：US15384766
申请日：2016-12-20
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , Hyunguk JANG , Sungchul KIM , Sanghyuck BAE , Suyun JU , Doyoung JUNG
IPC: G06F3/038 , G06F3/041 , G06F3/0354 , G06F3/044
CPC classification number: G06F3/0383 , G06F3/03545 , G06F3/0416 , G06F3/044
Abstract: An active stylus pen according to the present invention includes a first signal processor configured to generate a touch frame recognition signal for discriminating touch frames on the basis of sub-pulses corresponding to part of each touchscreen driving signal received from a touchscreen and a second signal processor configured to generate a pen driving signal synchronized with main pulses of each touchscreen driving signal other than the sub-pulses and to vary the pen driving signal in units of a touch frame according to the touch frame recognition signal such that additional pen information is reflected in the pen driving signal.
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12.发明申请公开(公告)号：US20170031465A1
公开(公告)日：2017-02-02
申请号：US15215769
申请日：2016-07-21
Applicant: LG Display Co., Ltd.
Inventor： Doyoung JUNG , Hyunguk JANG , Sungchul KIM , Sanghyuck BAE , Sungsu HAN , Suyun JU
IPC: G06F3/038 , G06F3/041 , G06F3/0354 , G06F3/044
CPC classification number: G06F3/0383 , G06F3/03545 , G06F3/044 , G06F2203/04108
Abstract: A touch sensing system comprises a touchscreen with a plurality of touch electrodes, to which a touchscreen driving signal is applied, and a stylus pen that generates a pen driving signal based on the touchscreen driving signal and sends the same to the touchscreen. The stylus pen comprises: an amplifier that amplifies the touchscreen driving signal to generate an amplified signal; a comparator that compares the amplified signal with a preset reference voltage to generate a comparator output signal; and a signal processor that measures the pulse width of the comparator output signal, adjusts an amount of delay based on a measurement, and determines an output timing of the pen driving signal based on an adjusted amount of delay to synchronize the pen driving signal with the touchscreen driving signal.
Abstract translation: 触摸感测系统包括具有多个触摸电极的触摸屏，其上施加有触摸屏驱动信号，以及触控笔，其基于触摸屏驱动信号产生笔驱动信号并将其发送到触摸屏。 触控笔包括：放大器，其放大触摸屏驱动信号以产生放大信号; 比较器，其将放大的信号与预置的参考电压进行比较，以产生比较器输出信号; 以及测量比较器输出信号的脉冲宽度的信号处理器，基于测量来调整延迟量，并且基于调整的延迟量来确定笔驱动信号的输出定时，以将笔驱动信号与 触摸屏驱动信号。
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公开(公告)号：US20210382572A1
公开(公告)日：2021-12-09
申请号：US17306427
申请日：2021-05-03
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Sungsu HAN
Abstract: Embodiments of the present disclosure are related to a touch display device, by implementing a touch routing line using a part of a display electrode metal disposed in a non-active area of a display panel, the non-active area is reduced, and the touch routing line can be disposed while preventing an increase of a load of the touch routing line. Furthermore, by connecting the touch routing line implemented with the display electrode metal under an encapsulation layer to a touch electrode on the encapsulation layer through a connecting metal located under a dam, the touch routing line can be disposed under the encapsulation layer without dropping a function of the encapsulation layer for reducing moisture permeation.
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公开(公告)号：US20210026477A1
公开(公告)日：2021-01-28
申请号：US16922390
申请日：2020-07-07
Applicant: LG DISPLAY CO., LTD.
Inventor： HwiDeuk LEE , Yangsik LEE , YongChan PARK , Sungsu HAN
Abstract: Embodiments of the present disclosure relate to a touch display device, and more particularly, to a touch display device which can have a small bezel size even when touch routing lines connecting a touch sensor to a touch sensing circuit are disposed in a non-display area and which can improve touch sensitivity by preventing or minimizing the formation of parasitic capacitance that can be caused by the touch routing lines.
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公开(公告)号：US20200210021A1
公开(公告)日：2020-07-02
申请号：US16726530
申请日：2019-12-24
Applicant: LG Display Co., Ltd.
Inventor： Suyun JU , HyungUk JANG , Sungsu HAN , DoYoung JUNG , SangHyuck BAE , Jongsung KIM
IPC: G06F3/044
Abstract: A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.
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Patent Agency Ranking
16.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：US20150185914A1
公开(公告)日：2015-07-02
申请号：US14482127
申请日：2014-09-10
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , Seongkyu KANG
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G06F2203/04111
Abstract: A touch sensing system includes a touch screen including touch sensors and sensing lines, the touch sensors and the sensing lines being divided into first and second sensing areas, a first touch sensing integrated circuit (IC) sensing a touch input of the first sensing area using a signal received through receiving channels, a second touch sensing IC sensing a touch input of the second sensing area using a signal received through receiving channels separated from the receiving channels of the first touch sensing IC, differential amplifiers between the sensing lines and the receiving channels of the first and second touch sensing ICs, and a switch connecting a sensing line, which is closest to the first sensing area among the sensing lines of the second sensing area, to an Nth differential amplifier connected to a last receiving channel of the first touch sensing IC.
Abstract translation: 触摸感测系统包括触摸屏，包括触摸传感器和感测线，触摸传感器和感测线被分为第一和第二感测区域，第一触摸感测集成电路（IC），感测第一感测区域的触摸输入，使用 通过接收通道接收的信号，使用从第一触摸感测IC的接收通道分离的接收通道接收的信号感测第二感测区域的触摸输入的第二触摸感测IC，感测线路和接收通道之间的差分放大器 的第一和第二触摸感测IC，以及连接到第二感测区域的感测线中最靠近第一感测区域的感测线路的连接到连接到第一触摸的最后接收频道的第N差分放大器的开关 感测IC。
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公开(公告)号：US20230214047A1
公开(公告)日：2023-07-06
申请号：US17963869
申请日：2022-10-11
Applicant: LG Display Co., Ltd.
Inventor： Sungsu HAN , HwiDeuk LEE , Yangsik LEE , JuHong KIM
CPC classification number: G06F3/04164 , H01L27/323 , H01L27/3258 , G06F3/0443 , G06F3/0412 , G06F2203/04111
Abstract: A display device can include a substrate in which a plurality of pixels each including an emissive area and a transmissive area is disposed. The display device can further include a touch electrode in the transmissive area, and a plurality of first touch connection lines extended in a first direction and electrically connecting the touch electrodes respectively disposed in the pixels adjacent to each other. Further, the display device can include a reference line on the substrate in the emissive area and extended in a second direction different from the first direction, and a plurality of touch lines extended in the second direction in the emissive area and disposed on a plurality of insulating layers covering the reference line. Furthermore, the display device can include a planarization layer covering the plurality of touch lines, and a plurality of light emitting diodes on the planarization layer in the emissive area.
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公开(公告)号：US20230031502A1
公开(公告)日：2023-02-02
申请号：US17964228
申请日：2022-10-12
Applicant: LG Display Co., Ltd.
Inventor： Yangsik LEE , HwiDeuk LEE , Sungsu HAN
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.
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