公开(公告)号：US20150002421A1

公开(公告)日：2015-01-01

申请号：US14310795

申请日：2014-06-20

Applicant: LG Display Co., Ltd.

Inventor： Tae Hwan KIM ,  Young Joon LEE ,  SunYeop KIM

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0416 ,  G06F3/044

Abstract: Disclosed are a display device and a driving method thereof. The display device includes a first common electrode line connected to a first common electrode of a plurality of common electrodes, and formed to overlap a data line formed in a panel where the plurality of common electrodes are formed. The plurality of common electrodes are separated from each other in a block form, receive a common voltage in an image output period, and receive a touch driving voltage in a touch sensing period. The display device includes a second common electrode separated from the first common electrode line with a protective layer therebetween, and configured to include two second common electrode plates which are separated from each other in a left and right direction with respect to the first common electrode line.

Abstract translation: 公开了一种显示装置及其驱动方法。 显示装置包括与多个公共电极的第一公共电极连接并形成为与形成有多个公共电极的面板中形成的数据线重叠的第一公共电极线。 多个公共电极以块形式彼此分离，在图像输出周期中接收公共电压，并且在触摸感测周期中接收触摸驱动电压。 显示装置包括与第一公共电极线分离的第二公共电极，其间具有保护层，并且被配置为包括相对于第一公共电极线在左右方向上彼此分离的两个第二公共电极板 。

公开(公告)号：US20150185936A1

公开(公告)日：2015-07-02

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: G06F3/041 ,  G06F3/044

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.

Abstract translation: 公开了具有集成触摸屏的显示装置。 显示装置包括被配置为以显示驱动模式和触摸驱动模式操作的面板，所述面板包括多个驱动电极，多个感测电极以及包括多个第一数据线和 多条第二数据线; 以及显示驱动器集成电路（IC），其被配置为在所述面板的显示驱动模式期间向所述多个第一数据线和所述多个第二数据线施加数据电压，并且所述显示驱动器IC被配置为向所述面板施加接地电压 多个第一数据线，并且在面板的触摸驱动模式期间浮动多条第二数据线。

公开(公告)号：US20240256086A1

公开(公告)日：2024-08-01

申请号：US18384590

申请日：2023-10-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Young Joon LEE ,  Sang Hyuck BAE

IPC: G06F3/041 ,  G06F3/0354

CPC classification number: G06F3/04184 ,  G06F3/03545 ,  G06F3/04162 ,  G06F3/044 ,  G06F2203/04107

Abstract: A touch sensing system may include, for example, pixels for displaying an input image, data lines, touch electrodes, a timing controller for dividing one frame into a display driving period for displaying the input image and a touch driving period for driving the touch electrodes, a stylus pen for receiving a pen uplink signal during the touch driving period and outputting a pen downlink signal, and a touch sensing circuit for causing the pen uplink signal to be radiated to the stylus pen from the data lines during the touch driving period and for sensing voltages of the touch electrodes based on the pen downlink signal. In another example, a touch sensing system may supply the pen uplink signal, which is to be radiated to the stylus pen, using touch electrodes and reference voltage lines during the touch driving period. Methods of driving a touch sensing system are also disclosed.

公开(公告)号：US20150179132A1

公开(公告)日：2015-06-25

申请号：US14495552

申请日：2014-09-24

Applicant: LG Display Co., Ltd.

Inventor： Young Joon LEE

IPC: G09G5/00 ,  G06F3/044

CPC classification number: G09G5/006 ,  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 and a plurality of sensing electrodes and a display driver integrated circuit (IC) configured to apply a common voltage to the plurality of driving electrodes and the plurality of sensing electrodes during the display driving mode, and the display driver IC is configured to apply a driving pulse to the plurality of driving electrodes during the touch driving mode of the panel and receive one or more sensing signals from the plurality of sensing electrodes responsive to a touch of the integrated touch screen during the touch driving mode of the panel, wherein the display driver IC is configured to adjust a magnitude of the driving pulse from a first level to a second level and subsequently from the second level to a third level during the touch driving mode of the panel, wherein the third level is less than the second level and greater than the first level.

Abstract translation: 公开了具有集成触摸屏的显示装置。 显示装置包括被配置为以显示驱动模式和触摸驱动模式操作的面板，所述面板包括多个驱动电极和多个感测电极，以及显示驱动器集成电路（IC），被配置为将公共电压施加到 在显示驱动模式期间，多个驱动电极和多个感测电极，并且显示驱动器IC被配置为在面板的触摸驱动模式期间向多个驱动电极施加驱动脉冲，并且接收一个或多个感测信号 在所述面板的触摸驱动模式期间响应于所述集成触摸屏的触摸从所述多个感测电极中选择所述多个感测电极，其中所述显示驱动器IC被配置为将所述驱动脉冲的幅度从第一电平调整到第二电平， 在面板的触摸驱动模式期间的第二级别到第三级别，其中第三级别小于第二级别a nd大于第一级。

公开(公告)号：US20140184534A1

公开(公告)日：2014-07-03

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

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。