公开(公告)号：US20180096644A1

公开(公告)日：2018-04-05

申请号：US15718804

申请日：2017-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunguk JANG ,  Seungho HEO

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/08 ,  G09G2300/0871 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28

Abstract: A display device comprises a pixel array, a timing controller, a Q node control signal input line, and a shift register. In the pixel array, data lines and gate lines are defined, and pixels are arranged in a matrix. The timing controller outputs a start signal and a first reset signal. The Q node control signal input line receives the start signal and the first reset signal. The shift register comprises a plurality of stages connected as a cascade, and sequentially supplies dummy gate pulses or gate pulses applied to the gate lines.

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。