公开(公告)号：US09218757B2

公开(公告)日：2015-12-22

申请号：US13729251

申请日：2012-12-28

Applicant: LG Display Co., Ltd.

Inventor： WoongKi Min ,  HongSung Song ,  YoonSan Park ,  SangJun Lee ,  SungGon Park

IPC: G09G3/18 ,  G09G3/36

CPC classification number: G09G3/18 ,  G09G3/3655 ,  G09G2300/0426 ,  G09G2320/0209 ,  G09G2320/0223

Abstract: A liquid crystal display device may include: a liquid crystal display panel comprising a first and a second common voltage supply line formed in a first direction at both side ends of the substrate, and at least one feedback line formed in the first direction and connected to the first common voltage supply line and/or the second common voltage supply line; and at least one common voltage compensating circuit, an output terminal of which is connected to the first and the second common voltage supply lines, and an input terminal of which is connected to the feedback line.

Abstract translation: 液晶显示装置可以包括：液晶显示面板，包括在基板的两个侧端沿第一方向形成的第一和第二公共电压供给线，以及形成在第一方向上的至少一个反馈线，并连接到 第一公共电压供应线和/或第二公共电压供应线; 以及至少一个公共电压补偿电路，其输出端连接到第一和第二公共电压供应线，其输入端连接到反馈线。

公开(公告)号：US10788918B2

公开(公告)日：2020-09-29

申请号：US15253524

申请日：2016-08-31

Applicant: LG Display Co., Ltd.

Inventor： TaeHyung Kim ,  HongSung Song ,  Jihye Jung

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: Disclosed is an in-cell touch type touch display device in which the number of touch lines is reduced to increase a transmittance, and the number of touch integrated circuits (ICs) is reduced to lower the manufacturing cost. The touch display device includes a touch display panel and a driving circuit unit. A plurality of touch sensors may be disposed in the touch display panel, and a plurality of subpixels including a common electrode may be provided between the plurality of touch sensors. The subpixels may be provided between the plurality of touch sensors which are adjacent to each other in a horizontal direction and a vertical direction. The driving circuit unit may include a touch driver, a touch sensing unit, and a power supply. The touch driver may supply a touch driving signal to the plurality of touch sensors.

公开(公告)号：US10198064B2

公开(公告)日：2019-02-05

申请号：US15280900

申请日：2016-09-29

Applicant: LG Display Co., Ltd.

Inventor： Soonho Kwon ,  HongSung Song

IPC: G06F3/044 ,  G06F1/32 ,  G06F3/041

Abstract: Disclosed are a touch driving device, a driving method thereof, and a display device including the same, which reduce power consumption. A touch driving device comprises a first circuit configured to generate a touch driving signal including a plurality of pulses with varying amplitudes or varying periods, responsive to detection of presence or absence of a touch on the touch sensitive display panel during a touch sensing period, and a second circuit configured to apply the touch driving signal to a touch electrode of the touch sensitive display panel during the touch sensing period.

公开(公告)号：US10175796B2

公开(公告)日：2019-01-08

申请号：US15273130

申请日：2016-09-22

Applicant: LG Display Co., Ltd.

Inventor： Soonho Kwon ,  HongSung Song ,  YongGi Son

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1345 ,  G09G3/36

Abstract: Disclosed is a display panel. The display panel includes a plurality of first electrodes, a plurality of second electrodes, a plurality of first electrode lines, and a plurality of second electrode lines. The first electrodes are provided in a display part and are used as a common electrode and a touch electrode. The second electrodes are used a common electrode and each second electrode is disposed adjacent to at least one of the first electrodes. The first electrode lines extend to a non-display part disposed outside the display part and are each connected to a corresponding one of the first electrodes. The second electrode lines extend to the non-display part and are connected to at least two of the second electrodes and supply a common voltage to the second electrodes connected to the second electrode lines.

公开(公告)号：US10133417B2

公开(公告)日：2018-11-20

申请号：US15223584

申请日：2016-07-29

Applicant: LG DISPLAY CO., LTD.

Inventor： ByungHyun Seo ,  HongSung Song ,  Hui Kim

IPC: G06F3/041 ,  G06F3/044

Abstract: Disclosed is an in-cell touch type touch display device and a method of driving the same, which prevent an error of a touch operation from being caused by the delay of a touch report occurring in a large-screen touch display device. The touch display device includes a touch panel, including a plurality of touch sensors, and a driving circuit unit. The driving circuit unit may include a plurality of source/touch driving ICs and a touch IC. The plurality of source/touch driving ICs may supply a touch driving signal to the plurality of touch sensors. The touch IC may perform a touch operation based on touch reports received from the plurality of source/touch driving ICs.

公开(公告)号：US10466824B2

公开(公告)日：2019-11-05

申请号：US16203150

申请日：2018-11-28

Applicant: LG Display Co., Ltd.

Inventor： Soonho Kwon ,  HongSung Song ,  YongGi Son

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1345

Abstract: Disclosed is a display panel. The display panel includes a plurality of first electrodes, a plurality of second electrodes, a plurality of first electrode lines, and a plurality of second electrode lines. The first electrodes are provided in a display part and are used as a common electrode and a touch electrode. The second electrodes are used as the common electrode and each second electrode is disposed adjacent to at least one of the first electrodes. The first electrode lines extend to a non-display part disposed outside the display part and are each connected to a corresponding one of the first electrodes. The second electrode lines extend to the non-display part and are connected to at least two of the second electrodes and supply a common voltage to the second electrodes connected to the second electrode lines.

公开(公告)号：US10162458B2

公开(公告)日：2018-12-25

申请号：US15224041

申请日：2016-07-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Soonho Kwon ,  HongSung Song ,  Hui Kim

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333

Abstract: Disclosed are an in-cell touch type touch display device that includes a touch display panel, where a plurality of touch sensors are disposed, and a driving circuit unit. Each of the plurality of touch sensors are disposed to correspond to a plurality of subpixels, and each of the plurality of touch sensors may include one or more touch switches. The one or more touch switches disposed in each of the plurality of touch sensors divisionally drive the plurality of touch sensors by 1/n (where n is a natural number equal to or more than two).

公开(公告)号：US20170031505A1

公开(公告)日：2017-02-02

申请号：US15224041

申请日：2016-07-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Soonho KWON ,  HongSung Song ,  Hui Kim

IPC: G06F3/041 ,  G06F3/047 ,  G02F1/1333 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103

Abstract: Disclosed are an in-cell touch type touch display device that includes a touch display panel, where a plurality of touch sensors are disposed, and a driving circuit unit. Each of the plurality of touch sensors are disposed to correspond to a plurality of subpixels, and each of the plurality of touch sensors may include one or more touch switches. The one or more touch switches disposed in each of the plurality of touch sensors divisionally drive the plurality of touch sensors by 1/n (where n is a natural number equal to or more than two).

Abstract translation: 公开了一种嵌入式触摸式触摸显示装置，其包括其中设置有多个触摸传感器的触摸显示面板和驱动电路单元。 多个触摸传感器中的每一个设置成对应于多个子像素，并且多个触摸传感器中的每一个可以包括一个或多个触摸开关。 设置在多个触摸传感器的每一个中的一个或多个触摸开关将多个触摸传感器分开地驱动1 / n（其中n是等于或大于2的自然数）。