公开(公告)号：US09715137B2

公开(公告)日：2017-07-25

申请号：US14980174

申请日：2015-12-28

Applicant: LG Display Co., Ltd.

Inventor： JinSeong Kim ,  CheolSe Kim ,  JuHan Kim ,  SungChul Kim ,  SangHyuck Bae

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368 ,  G06F3/041 ,  G06F3/044

CPC classification number: G02F1/13338 ,  G02F1/136286 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103

Abstract: A liquid crystal display (LCD) device includes a lower substrate and an upper substrate disposed to face each other and having a liquid crystal layer interposed therebetween, black matrices provided on the lower substrate, a color filter provided between the black matrices, and a common electrode provided on the entire surface of the lower substrate, a gate line and a data line provided on the upper substrate and intersect with each other to define a pixel area, a thin film transistor (TFT) present in the pixel area of the upper substrate, and a pixel electrode electrically in contact with the TFT, wherein a sensing signal is output by detecting a change in self-capacitance between a touch object contacting the upper substrate and the gate line and the data line.

公开(公告)号：US20160187694A1

公开(公告)日：2016-06-30

申请号：US14968523

申请日：2015-12-14

Applicant: LG Display Co., Ltd.

Inventor： Jinseong Kim ,  CheolSe Kim ,  JuHan Kim ,  YongChan Park ,  Seungkyeom Kim

IPC: G02F1/1333 ,  G06F3/044 ,  G02F1/1335 ,  G02F1/1368 ,  G02F1/1343

CPC classification number: G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/1362 ,  G02F1/1368 ,  G02F2001/133562 ,  G02F2001/134345 ,  G06F3/0412 ,  G06F3/044

Abstract: A liquid crystal display panel and an LCD apparatus including the same, may include a thin film transistor (TFT) substrate including a touch electrode and a switching transistor that is disposed over a color filter (CF) substrate including a color filter, such that the TFT substrate is exposed to an outside of the LCD panel or LCD apparatus.

Abstract translation: 液晶显示面板和包括该液晶显示面板的LCD装置可以包括：薄膜晶体管（TFT）基板，包括触摸电极和开关晶体管，其设置在包括滤色器的滤色器（CF）基板上，使得 TFT基板暴露于LCD面板或LCD装置的外部。

公开(公告)号：US20250081794A1

公开(公告)日：2025-03-06

申请号：US18789033

申请日：2024-07-30

Applicant: LG Display Co., Ltd.

Inventor： SungChul Kim ,  JuHan Kim ,  Jinseong Kim ,  Haewon Lee

IPC: H10K59/40 ,  G06F3/041 ,  H10K59/131 ,  H10K59/35

Abstract: A touch display device comprises: a display panel including a substrate having a first area in a center of the substrate and a second area that surrounds the first area, a plurality of first pixels in the first area of the substrate, and a plurality of second pixels in the second area of the substrate; and a touch sensor on the display panel, the touch sensor configured to sense touch and includes a plurality of first sensing electrodes in the first area and a plurality of second sensing electrodes in the second area. The plurality of first pixels and the plurality of second pixels have different densities, and the plurality of first sensing electrodes and the plurality of second sensing electrodes have different densities.

公开(公告)号：US11315986B2

公开(公告)日：2022-04-26

申请号：US16726609

申请日：2019-12-24

Applicant: LG Display Co., Ltd.

Inventor： CheolSe Kim ,  JuHan Kim

IPC: G06F3/041 ,  G02F1/133 ,  H01L27/32 ,  H01L51/52 ,  G06F3/044

Abstract: A touch display device comprises a substrate; planarization film disposed over the substrate; an anode electrode and a touch metal disposed on the planarization film; a bank disposed over the planarization film on which the anode electrode and the touch metal are disposed, and the bank including a first cavity exposing the anode electrode and a second cavity exposing the touch metal; an organic light emitting layer disposed in the first cavity and disposed over the anode electrode; and a cathode electrode disposed over the organic light emitting layer and the bank, wherein the cathode electrode includes a first cathode electrode and a second cathode electrode, which are separated from each other, and a part of the first cathode electrode is disposed in the second cavity and connected to the touch metal in the second cavity.

公开(公告)号：US11281333B2

公开(公告)日：2022-03-22

申请号：US17123467

申请日：2020-12-16

Applicant: LG Display Co., Ltd.

Inventor： CheolSe Kim ,  JuHan Kim ,  SeungSeok Oh ,  HoonBae Kim

IPC: G06F3/041

Abstract: In a touch display device with a touch sensor structure in which two or more touch electrodes located in two or more subareas are electrically connected to each other via one touch line, itis possible to decrease the number of touch channels. With a touch sensor structure in which two or more touch electrodes are connected to each touch line in a touch electrode connecting structure capable of removing ghost data, it is possible to improve touch sensitivity greatly.

公开(公告)号：US11023059B2

公开(公告)日：2021-06-01

申请号：US16124998

申请日：2018-09-07

Applicant: LG Display Co., Ltd.

Inventor： HoonBae Kim ,  CheolSe Kim ,  SeungMok Shin ,  JuHan Kim ,  YongChan Park ,  HyunHo Park

IPC: G06F3/041 ,  G06F3/047 ,  G09G3/20 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/136

Abstract: Embodiments disclosed herein relate to a touch display panel and a touch display device. By arranging a shielding structure, which is connected to a touch electrode in a region where a touch line and a data line overlap each other or is applied with a shielding signal corresponding to a touch driving signal from an outside circuit, between the touch line and the data line, it is possible to prevent direct capacitance from being formed between the touch line and the data line, and to prevent the capacitance formed due to the data line from causing noise on a touch sensing signal. In addition, by arranging a touch load reduction layer between the shielding structure and the touch line, it is also possible to reduce the capacitance between the touch line and the data line arranged in the horizontal direction, thereby improving touch sensing performance.

公开(公告)号：US10719155B2

公开(公告)日：2020-07-21

申请号：US16113598

申请日：2018-08-27

Applicant: LG Display Co., Ltd.

Inventor： CheolSe Kim ,  BuYeol Lee ,  JuHan Kim

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/36

Abstract: The present disclosure provides a touch display panel or a touch display device and a gate driving circuit included in the touch display panel or the touch display device. The gate driving circuit includes a shift register group outputting scan signals during a display driving period and a dummy shift register group outputting dummy signal during a touch driving period. The gate driving circuit transmits a signal output immediately before a display driving period before a touch driving period ends, through dummy shift registers during the touch driving period such that the signal is used for outputting a first scan signal in the next display driving period. Accordingly, it is possible to prevent output reduction of a scan signal at the boundary between the touch driving period and the display driving period and prevent defect in an image due to the output reduction.

公开(公告)号：US10528164B2

公开(公告)日：2020-01-07

申请号：US15441723

申请日：2017-02-24

Applicant: LG DISPLAY CO., LTD.

Inventor： TaeWoo Kim ,  JuHan Kim ,  Kyungjae Park

IPC: G06F3/041 ,  G06F3/044 ,  F21V8/00

Abstract: A display device, a backlight unit, a guide panel, and a flexible printed circuit, are disclosed which include a conductive pattern on a part of an outer surface of a guide panel or a folding portion formed by folding a side end portion of the flexible printed circuit. The conductive pattern or the folding portion is electrically connected to an electrode located below the display device. A simple structure is provided in which a signal output from a signal input medium positioned above the guide panel is easily transmitted to an electrode located below the display device through the conductive pattern of the guide panel or the folding portion of the flexible printed circuit.

公开(公告)号：US10120490B2

公开(公告)日：2018-11-06

申请号：US15216656

申请日：2016-07-21

Applicant: LG Display Co., Ltd.

Inventor： SungChul Kim ,  JuHan Kim

IPC: G06F3/041 ,  G06F3/044

Abstract: A driving circuit, a touch display device, and a method of driving the touch display device, in which, when a user touches a screen, not only can a touch point be sensed, but also a level of touch force with which the user presses the screen can also be efficiently sensed, in order to provide a range of functions. It is possible to provide a variety of functions that are not supported by related-art touch sensing technologies.

公开(公告)号：US09442593B2

公开(公告)日：2016-09-13

申请号：US14522561

申请日：2014-10-23

Applicant: LG DISPLAY CO., LTD.

Inventor： SungChul Kim ,  JuHan Kim ,  YongChan Park ,  Sujin Kwon

IPC: G06F3/041 ,  G09G3/20

CPC classification number: G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/2092 ,  G09G2300/0426

Abstract: The present invention relates to touch screen panel integrated display panel and display device. The touch screen panel integrated display panel comprises: a common electrode to which a common voltage is applied in a display mode and a touch driving signal is applied in a touch mode; a gate line that transfers a scan signal to a pixel row; and a gate driving integrated circuit that is connected to the gate line and outputs the scan signal to the gate line, wherein the gate driving integrated circuit includes a pull-up transistor and a pull-down transistor for outputting the scan signal to the gate line in the display mode, and additionally includes a touch mode transistor for outputting the touch driving signal applied to the common electrode or a signal corresponding to the touch driving signal to the gate line in the touch mode.

Abstract translation: 本发明涉及触摸屏面板集成显示面板和显示装置。 触摸屏面板集成显示面板包括：以显示模式施加公共电压的公共电极，并且以触摸模式施加触摸驱动信号; 将扫描信号传送到像素行的栅极线; 以及栅极驱动集成电路，其连接到栅极线并将扫描信号输出到栅极线，其中栅极驱动集成电路包括上拉晶体管和用于将扫描信号输出到栅极线的下拉晶体管 并且还包括用于在触摸模式中将施加到公共电极的触摸驱动信号或对应于触摸驱动信号的信号输出到栅极线的触摸模式晶体管。