公开(公告)号：US09606658B2

公开(公告)日：2017-03-28

申请号：US14496907

申请日：2014-09-25

Applicant: LG Display Co., Ltd.

Inventor： Sun Yeop Kim ,  Jae Sung Yu ,  Young Joon Lee ,  Nam Hun Oh

IPC: G06F3/044 ,  G06F3/041

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

Abstract: Disclosed is a display device with an integrated touch screen. The display device includes a panel configured to operate in a display driving mode and a touch driving mode, the panel including a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of data lines including a plurality of first data lines and a plurality of second data lines; and a display driver integrated circuit (IC) configured to apply data voltages to the plurality of first data lines and the plurality of second data lines during the display driving mode of the panel, and the display driver IC configured to apply a ground voltage to the plurality of first data lines and float the plurality of second data lines during the touch driving mode of the panel.

公开(公告)号：US08952913B2

公开(公告)日：2015-02-10

申请号：US13709268

申请日：2012-12-10

Applicant: LG Display Co., Ltd.

Inventor： Young Joon Lee ,  Sang Soo Hwang ,  Sun Yeop Kim ,  Sung Yub Lee

IPC: G06F3/041 ,  G06F3/044

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

Abstract: Disclosed is a display device. The display device includes a panel, a display driver IC, and a touch IC. The panel includes a plurality of driving electrodes and a plurality of sensing electrodes. The display driver IC outputs a common voltage to the driving electrode and the sensing electrode in a display driving interval, outputs a reference voltage to the driving electrode during a touch non-sensing period in a touch driving interval, and outputs a driving pulse to the driving electrode to receive a sensing signal from the sensing electrode during a touch sensing period in the touch driving interval. The touch IC transfers a control signal and a selection signal for selecting the touch sensing period and the touch non-sensing period to the display driver, and senses whether there is a touch with the sensing signal and the reference voltage.

Abstract translation: 公开了一种显示装置。 显示装置包括面板，显示驱动器IC和触摸IC。 面板包括多个驱动电极和多个感测电极。 显示驱动器IC在显示驱动间隔中向驱动电极和感测电极输出公共电压，在触摸驱动间隔期间的触摸非感测时段期间向驱动电极输出参考电压，并将驱动脉冲输出到 驱动电极，以在触摸驱动间隔期间的触摸感测周期期间从感测电极接收感测信号。 触摸IC将用于选择触摸感测周期和触摸非感测时段的控制信号和选择信号传送到显示驱动器，并且感测是否存在与感测信号和参考电压的触摸。

公开(公告)号：US20130335343A1

公开(公告)日：2013-12-19

申请号：US13676333

申请日：2012-11-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Young Joon Lee ,  Sun Yeop Kim ,  Sung Yub Lee

IPC: G06F3/01

CPC classification number: G06F3/01 ,  G06F3/0412

Abstract: A display device with integrated touch screen is provided. The display device may include a panel, a display driver IC, and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The display driver IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the display driver IC may apply a common voltage to the driving electrodes and sensing electrodes. The touch IC may generate the driving pulse and apply the driving pulse to the display driver IC, and may receive the sensing signals from the display driver IC to determine whether there is a touch. The touch IC may include a sensing unit sensing whether there is a touch.

Abstract translation: 提供具有集成触摸屏的显示设备。 显示装置可以包括面板，显示驱动器IC和触摸IC。 面板可以包括多个驱动电极和感测电极。 当面板以触摸驱动模式操作时，显示驱动器IC可以向驱动电极施加驱动脉冲并从感测电极接收多个感测信号，并且当面板以显示驱动模式操作时，显示驱动器IC 可以向驱动电极和感测电极施加公共电压。 触摸IC可以产生驱动脉冲并将驱动脉冲施加到显示驱动器IC，并且可以从显示驱动器IC接收感测信号以确定是否存在触摸。 触摸IC可以包括检测是否存在触摸的感测单元。

公开(公告)号：US10372257B2

公开(公告)日：2019-08-06

申请号：US14923051

申请日：2015-10-26

Applicant: LG Display Co., Ltd.

Inventor： Hoon Bae Kim ,  Sun Yeop Kim ,  Sung Yub Lee ,  Seong Kyu Kang

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1343

Abstract: A liquid crystal display device is disclosed, which may compensate for a common voltage by reflecting all of noises by which a plurality of common electrodes are affected. The liquid crystal display device comprises a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the data lines, and a plurality of pixels provided at crossing regions of the data lines and the gate lines and including pixel electrodes and common electrodes to which a common voltage is supplied, wherein a common electrode of the common electrodes is shared by two or more of the plurality of pixels. The liquid crystal display panel also includes a plurality of feedback lines that overlap the common electrodes, the plurality of feedback lines receiving a variation of the common voltage that is reflected by the common electrodes onto the plurality of feedback lines.

公开(公告)号：US09423907B2

公开(公告)日：2016-08-23

申请号：US14025419

申请日：2013-09-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Young Joon Lee ,  Sun Yeop Kim ,  Sung Yub Lee

IPC: G06F3/041 ,  G06F3/044

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

Abstract: Discussed is a display device with integrated touch screen and a method of driving the same. The display device includes a panel including a plurality of driving electrodes and a plurality of sensing electrodes, a touch IC, and a display driver IC. The touch IC generates a first driving pulse, and determines whether there is a touch using a plurality of sensing signals generated by the sensing electrodes. When the panel operates a touch driving mode, the display driver IC generates a second driving pulse with the first driving pulse to apply the second driving pulse to the driving electrodes and receives the sensing signals from the respective sensing electrodes to transfer the sensing signals to the touch IC.

Abstract translation: 讨论的是具有集成触摸屏的显示装置及其驱动方法。 显示装置包括包括多个驱动电极和多个感测电极的面板，触摸IC和显示驱动器IC。 触摸IC产生第一驱动脉冲，并且使用由感测电极产生的多个感测信号来确定是否存在触摸。 当面板操作触摸驱动模式时，显示驱动器IC利用第一驱动脉冲产生第二驱动脉冲，以将第二驱动脉冲施加到驱动电极，并从各个感测电极接收感测信号，以将感测信号传送到 触摸IC。

公开(公告)号：US09329674B2

公开(公告)日：2016-05-03

申请号：US13676333

申请日：2012-11-14

Applicant: LG Display Co., Ltd.

Inventor： Young Joon Lee ,  Sun Yeop Kim ,  Sung Yub Lee

IPC: G06F3/041 ,  G06F3/01

CPC classification number: G06F3/01 ,  G06F3/0412

Abstract: A display device with integrated touch screen is provided. The display device may include a panel, a display driver IC, and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The display driver IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the display driver IC may apply a common voltage to the driving electrodes and sensing electrodes. The touch IC may generate the driving pulse and apply the driving pulse to the display driver IC, and may receive the sensing signals from the display driver IC to determine whether there is a touch. The touch IC may include a sensing unit sensing whether there is a touch.

Abstract translation: 提供具有集成触摸屏的显示设备。 显示装置可以包括面板，显示驱动器IC和触摸IC。 面板可以包括多个驱动电极和感测电极。 当面板以触摸驱动模式操作时，显示驱动器IC可以向驱动电极施加驱动脉冲并从感测电极接收多个感测信号，并且当面板以显示驱动模式操作时，显示驱动器IC 可以向驱动电极和感测电极施加公共电压。 触摸IC可以产生驱动脉冲并将驱动脉冲施加到显示驱动器IC，并且可以从显示驱动器IC接收感测信号以确定是否存在触摸。 触摸IC可以包括检测是否存在触摸的感测单元。

公开(公告)号：US09063624B2

公开(公告)日：2015-06-23

申请号：US13675320

申请日：2012-11-13

Applicant: LG Display Co., Ltd.

Inventor： Young Joon Lee ,  Sang Soo Hwang ,  Sun Yeop Kim

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A display device with integrated touch screen is provided. The display device may include a panel and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The touch IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes to determine whether there is a touch when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the touch IC may apply a common voltage to the plurality of driving electrodes and sensing electrodes. The touch IC may include a sensing unit sensing whether there is a touch by use of a touch sensing reference voltage applied to the sensing unit and having the same level as a minimum voltage of the driving pulse.

Abstract translation: 提供具有集成触摸屏的显示设备。 显示装置可以包括面板和触摸IC。 面板可以包括多个驱动电极和感测电极。 触摸IC可以向驱动电极施加驱动脉冲并从感测电极接收多个感测信号，以便当面板在触摸驱动模式下操作时确定是否存在触摸，并且当面板在显示驱动中操作时 触摸IC可以对多个驱动电极和感测电极施加公共电压。 触摸IC可以包括感测单元，其通过使用施加到感测单元的触摸感测参考电压并且具有与驱动脉冲的最小电压相同的电平来感测是否存在触摸。

公开(公告)号：US20140111446A1

公开(公告)日：2014-04-24

申请号：US13709268

申请日：2012-12-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Young Joon Lee ,  Sang Soo Hwang ,  Sun Yeop Kim ,  Sung Yub Lee

IPC: G06F3/041

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

Abstract: Disclosed is a display device. The display device includes a panel, a display driver IC, and a touch IC. The panel includes a plurality of driving electrodes and a plurality of sensing electrodes. The display driver IC outputs a common voltage to the driving electrode and the sensing electrode in a display driving interval, outputs a reference voltage to the driving electrode during a touch non-sensing period in a touch driving interval, and outputs a driving pulse to the driving electrode to receive a sensing signal from the sensing electrode during a touch sensing period in the touch driving interval. The touch IC transfers a control signal and a selection signal for selecting the touch sensing period and the touch non-sensing period to the display driver, and senses whether there is a touch with the sensing signal and the reference voltage.

Abstract translation: 公开了一种显示装置。 显示装置包括面板，显示驱动器IC和触摸IC。 面板包括多个驱动电极和多个感测电极。 显示驱动器IC在显示驱动间隔中向驱动电极和感测电极输出公共电压，在触摸驱动间隔期间的触摸非感测时段期间向驱动电极输出参考电压，并将驱动脉冲输出到 驱动电极，以在触摸驱动间隔期间的触摸感测周期期间从感测电极接收感测信号。 触摸IC将用于选择触摸感测周期和触摸非感测时段的控制信号和选择信号传送到显示驱动器，并且感测是否存在与感测信号和参考电压的触摸。

公开(公告)号：US20130335366A1

公开(公告)日：2013-12-19

申请号：US13675320

申请日：2012-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Young Joon Lee ,  Sang Soo Hwang ,  Sun Yeop Kim

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A display device with integrated touch screen is provided. The display device may include a panel and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The touch IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes to determine whether there is a touch when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the touch IC may apply a common voltage to the plurality of driving electrodes and sensing electrodes. The touch IC may include a sensing unit sensing whether there is a touch by use of a touch sensing reference voltage applied to the sensing unit and having the same level as a minimum voltage of the driving pulse.

Abstract translation: 提供具有集成触摸屏的显示设备。 显示装置可以包括面板和触摸IC。 该面板可以包括多个驱动电极和感测电极。 触摸IC可以向驱动电极施加驱动脉冲并从感测电极接收多个感测信号，以便当面板在触摸驱动模式下操作时确定是否存在触摸，并且当面板在显示驱动中操作时 触摸IC可以对多个驱动电极和感测电极施加公共电压。 触摸IC可以包括感测单元，其通过使用施加到感测单元的触摸感测参考电压并且具有与驱动脉冲的最小电压相同的电平来感测是否存在触摸。