公开(公告)号：US20180164909A1

公开(公告)日：2018-06-14

申请号：US15837459

申请日：2017-12-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyuck BAE ,  Cheolse KIM

IPC: G06F3/0354 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/03545 ,  G06F3/0383 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/0488

Abstract: An electronic device having a touch sensor and a method of driving the same are disclosed. The electronic device includes a display panel having a touch screen, a touch driver configured to drive the touch screen, a timing controller configured to control the display panel and the touch driver, and a stylus pen configured to provide a signal to the touch screen. The timing controller, in order to synchronize with the stylus pen, generates and outputs a control signal having an extended vertical blanking period in which a vertical blanking period is extended, and a display driving period and a touch sensor driving period which alternate in two or more times for one frame.

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：US20170285771A1

公开(公告)日：2017-10-05

申请号：US15392783

申请日：2016-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Doyoung JUNG ,  Cheolse KIM ,  Buyeol LEE ,  Hyunguk JANG ,  Sanghyuck BAE

IPC: G06F3/038 ,  G06F3/044 ,  G06F3/041 ,  G06F3/0354

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

Abstract: An active stylus pen is insensitive to external noise and has enhanced sensing performance with respect to an uplink signal input from a touch screen. The active stylus pen includes a housing connected to a ground, a conductive tip protruding outwardly from one side of the housing and brought into contact with a touch screen, a conductor layer surrounding an outer surface of the housing with an insulator interposed therebetween, a pen driving circuit connected to the conductor layer, and a switch connecting the conductor layer and the pen driving circuit. The pen driving circuit is cased by the housing, receives an uplink signal and a touch sensor driving signal from the touch screen, generates a pen driving signal synchronized with the touch sensor driving signal and outputs the generated pen driving signal to the touch screen through the conductive tip.

公开(公告)号：US20170060337A1

公开(公告)日：2017-03-02

申请号：US14984740

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Sungchul KIM ,  Hyunguk JANG ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU ,  Doyoung JUNG ,  Kyungjin JANG ,  Yoonion HWANG

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/044

Abstract: A touch sensitive display device, a method for driving the same, and a driving circuit of the display device are disclosed. The touch sensitive display device comprises a display panel comprising a plurality of pixels and a plurality of touch sensors. Each touch sensor is connected to at least one respective pixel of the pixels, the display panel driven in a plurality of successive display frame periods and during each display frame period a respective frame of image data is driven to the pixels. A touch driving circuit drives touch driving signals to the touch sensors during a touch frame that begins in a first display frame period of the display frame periods and ends in a second display frame period of the display frame periods that immediately follows the first display frame period.

Abstract translation: 公开了一种触敏显示装置，其驱动方法和显示装置的驱动电路。 触敏显示装置包括包括多个像素和多个触摸传感器的显示面板。 每个触摸传感器连接到像素的至少一个相应像素，显示面板以多个连续的显示帧周期驱动，并且在每个显示帧周期期间，图像数据的相应帧被驱动到像素。 触摸驱动电路在从显示帧周期的第一显示帧周期开始的触摸帧期间将触摸驱动信号驱动到触摸传感器，并且在紧接着第一显示帧周期的显示帧周期的第二显示帧周期结束 。

公开(公告)号：US20170060278A1

公开(公告)日：2017-03-02

申请号：US15249113

申请日：2016-08-26

Applicant: LG Display Co., Ltd.

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

IPC: G06F3/0354 ,  G06F3/0487 ,  G06F3/041

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

Abstract: An active stylus pen generates a pen driving signal synchronized with a touchscreen driving signal received from a touchscreen and outputs the pen driving signal to the touchscreen. The active stylus pen includes a pressure sensing unit for sensing pressure when touching the touchscreen to generate writing pressure information and a signal processor for modulating the pen driving signal in response to the signal level of the writing pressure information and outputs the modulated signal as a pen driving signal in which the writing pressure information has been reflected.

Abstract translation: 有源触控笔产生与从触摸屏接收的触摸屏驱动信号同步的笔驱动信号，并将笔驱动信号输出到触摸屏。 有源触笔包括用于在触摸触摸屏时感测压力以产生书写压力信息的压力感测单元和用于响应于写入压力信息的信号电平来调制笔驱动信号的信号处理器，并输出调制信号作为笔 写入压力信息已被反映的驱动信号。

公开(公告)号：US20180181241A1

公开(公告)日：2018-06-28

申请号：US15824928

申请日：2017-11-28

Applicant: LG Display Co., Ltd.

Inventor： Doyoung JUNG ,  Hyunwoo JANG ,  Hyunguk JANG ,  Sanghyuck BAE ,  Suyun JU

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/0412 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/0488

Abstract: A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.

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.

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。

公开(公告)号：US20150138173A1

公开(公告)日：2015-05-21

申请号：US14457999

申请日：2014-08-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyuck BAE ,  Juhan KIM ,  Jinseong KIM ,  Seongkyu KANG

IPC: G09G5/18 ,  G09G3/36 ,  G09G3/32 ,  G06F3/01

CPC classification number: G09G5/18 ,  G02F2001/13312 ,  G06F3/017 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3275 ,  G09G3/3685 ,  G09G3/3688

Abstract: A display device and a method for driving the same are discussed. The display device includes a display panel including a common electrode commonly connected to pixels, a display driving circuit for applying a data voltage to the pixels during a vertical active time, and a sensor driving circuit which applies a gesture sensing driving signal to the common electrode during a vertical blank time and senses a gesture input.

Abstract translation: 讨论了显示装置及其驱动方法。 显示装置包括：显示面板，包括与像素共同连接的公共电极;显示驱动电路，用于在垂直活动时间期间向像素施加数据电压;以及传感器驱动电路，其将手势感测驱动信号施加到公共电极 在垂直空白时间期间，并感测到手势输入。

公开(公告)号：US20130342478A1

公开(公告)日：2013-12-26

申请号：US13687738

申请日：2012-11-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Sanghyuck BAE ,  Sungchul KIM

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/36 ,  G09G2320/0223

Abstract: A touch sensing apparatus according to an embodiment of the present invention includes: a display device including a plurality of pixels and displaying an image; a touch screen including a plurality of touch sensors and being included in the display device; display panel driving circuits for driving the display device; a touch sensing circuit for applying a driving signal to the touch sensors to sense a voltage or capacitance variation in the touch sensors; a controller for time-dividing a first frame period into a first driving period for displaying an image on the display device and a second driving period for sensing the touch sensors; and a reset control circuit for controlling operations of the display panel driving circuits with a reset enable signal to initialize the pixels of the display device to an equivalent reset voltage at predetermined intervals between the first driving period and the second driving period.

Abstract translation: 根据本发明的实施例的触摸感测装置包括：显示装置，包括多个像素并显示图像; 包括多个触摸传感器并包括在所述显示装置中的触摸屏; 用于驱动显示装置的显示面板驱动电路; 触摸感测电路，用于向触摸传感器施加驱动信号以感测触摸传感器中的电压或电容变化; 控制器，用于将第一帧周期时分为用于在显示装置上显示图像的第一驱动周期和用于感测所述触摸传感器的第二驱动周期; 以及复位控制电路，用于通过复位使能信号控制显示面板驱动电路的操作，以在第一驱动周期和第二驱动周期之间以预定间隔将显示装置的像素初始化为等效复位电压。