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公开(公告)号：US20230040620A1
公开(公告)日：2023-02-09
申请号：US17971362
申请日：2022-10-21
Applicant: LG Display Co., Ltd.
Inventor： Haewon Lee , Jinseong Kim , JuHan Kim
Abstract: A touch display device includes a first horizontal electrode including a plurality of first electrode parts spaced apart from one another in a horizontal direction and a plurality of first bridge parts connecting the plurality of first electrode parts; a second horizontal electrode including a plurality of second electrode parts spaced apart from the first horizontal electrode in a vertical direction and spaced apart from one another in the horizontal direction and a plurality of second bridge parts connecting the plurality of second electrode parts; a third horizontal electrode including a plurality of third electrode parts spaced apart from the second horizontal electrode in the vertical direction and spaced apart from one another in the horizontal direction and a plurality of third bridge parts connecting the plurality of third electrode parts; a first horizontal touch line electrically connected to the first horizontal electrode and disposed to extend in the vertical direction; a second horizontal touch line electrically connected to the second horizontal electrode and disposed to extend in the vertical direction; and a third horizontal touch line electrically connected to the third horizontal electrode and disposed to extend in the vertical direction; a plurality of first separation electrodes; a plurality of second separation electrodes; a first vertical touch line; and a second vertical touch line.
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公开(公告)号：US20220206619A1
公开(公告)日：2022-06-30
申请号：US17561270
申请日：2021-12-23
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , JuHan Kim , Jinseong Kim , Haewon Lee
Abstract: A display device includes a first substrate, pixel substrates, first connection lines, second connection lines, and a touch electrode. The pixel substrates are disposed on the first substrate, and are spaced apart from each other along a first direction and along a second direction perpendicular to the first direction. The first connection lines connect pixel substrates disposed along the first direction. The second connection lines connect pixel substrates disposed along the second direction. The touch electrode is disposed between the pixel substrates in an area adjacent to areas in which the first connection lines and the second connection lines are disposed.
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公开(公告)号：US11347361B2
公开(公告)日：2022-05-31
申请号：US16720629
申请日：2019-12-19
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , JuHan Kim
Abstract: The present disclosure relates to a touch display device, a touch panel, a touch sensing circuit and a touch sensing method. In the touch display device, the touch panel, and the touch sensing circuit, and in the method of performing touch sensing therein, a structure in which a plurality of touch sensor groups is arranged is provided, and one of a self-capacitance touch sensing scheme and a mutual-capacitance touch sensing scheme is adaptively implemented according to the type and position of a touch event. Therefore, the number of signal lines and the number of touch channels may be reduced, and the ghost phenomenon can be reduced or be overcome when multiple touches occur.
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公开(公告)号：US11175778B2
公开(公告)日：2021-11-16
申请号：US17018620
申请日：2020-09-11
Applicant: LG Display Co., Ltd.
Inventor： Haewon Lee , JuHan Kim , Jinseong Kim
Abstract: The present disclosure relates to touch display device and display panel. Provided are a touch display device and a display panel able to improve touch sensing performance by reducing crosstalk occurring between data lines and touch lines. A shield pattern is disposed in an area in which the touch lines overlap the data lines. A shield signal is applied to the shield pattern through shield lines in an area in which the shield pattern does not overlap the touch lines or the data lines. Direct capacitance is not formed between the touch lines and the data lines.
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5.发明申请LIQUID CRYSTAL DISPLAY DEVICE USING IN-CELL TOUCH MODE AND METHOD FOR MANUFACTURING THE SAME 有权使用细胞触摸模式的液晶显示装置及其制造方法公开(公告)号：US20160187696A1
公开(公告)日：2016-06-30
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 , G06F3/044 , G02F1/1362 , G06F3/041 , G02F1/1335 , G02F1/1368
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.
Abstract translation: 液晶显示器（LCD）装置包括：下基板和上基板，其设置成彼此面对并具有介于其间的液晶层，设置在下基板上的黑矩阵，设置在黑矩阵之间的滤色器和公共 设置在下基板的整个表面上的电极，栅极线和数据线，设置在上基板上并彼此相交以限定像素区域，存在于上基板的像素区域中的薄膜晶体管（TFT） 以及与TFT电接触的像素电极，其中通过检测与上基板接触的触摸物体与栅极线与数据线之间的自电容的变化来输出感测信号。
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Patent Agency Ranking
公开(公告)号：US20130162570A1
公开(公告)日：2013-06-27
申请号：US13722366
申请日：2012-12-20
Applicant: LG DISPLAY CO., LTD.
Inventor： HeeSun Shin , SeokWoo Lee , JaeSung Yu , JuHan Kim , SanJung Lee , InHyuk Song
IPC: G06F3/041
CPC classification number: G02F1/13338 , G02F1/133345 , G02F1/133514 , G02F1/134309 , G02F1/13439 , G02F1/136286 , G02F1/1368 , G02F2001/133302 , G02F2001/134372 , G02F2001/136295 , G06F3/041 , G06F3/0412 , G06F3/044 , G06F3/047 , G06F2203/04103
Abstract: Disclosed is an LCD device which realizes decreased thickness, simplified process, and decreased cost by using a common electrode for formation of electric field to drive liquid crystal as a sensing electrode, and removing a touch screen from an upper surface of the liquid crystal panel, the LCD device comprising gate and data lines crossing each other to define plural pixels on a lower substrate; a pixel electrode in each of the plural pixels; plural common electrode blocks patterned at the different layer from the pixel electrode, wherein the common electrode blocks, together with the pixel electrode, forms an electric field, and senses a user's touch; and plural sensing lines electrically connected with the common electrode blocks, wherein, if the sensing line is electrically connected with one of the common electrode blocks, the sensing line is insulated from the remaining common electrode blocks.
Abstract translation: 公开了一种LCD装置，其通过使用用于形成电场的公共电极来驱动液晶作为感测电极，并且从液晶面板的上表面去除触摸屏，实现了减小的厚度，简化的处理和降低的成本， 所述LCD装置包括彼此相交的栅极和数据线，以在下基板上限定多个像素; 在所述多个像素中的每一个中的像素电极; 在与像素电极不同的层处图案化的多个公共电极块，其中公共电极块与像素电极一起形成电场并感测用户的触摸; 以及与公共电极块电连接的多个感测线，其中，如果感测线与公共电极块之一电连接，则感测线与剩余的公共电极块绝缘。
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公开(公告)号：US12093494B2
公开(公告)日：2024-09-17
申请号：US17988516
申请日：2022-11-16
Applicant: LG Display Co., Ltd.
Inventor： Jinseong Kim , JuHan Kim , Haewon Lee , MoonBae Gee , Hyowon Kwon
IPC: G06F3/044
CPC classification number: G06F3/0446 , G06F3/0443 , G06F3/0448
Abstract: A display device according to an example embodiment of the present disclosure includes a touch pattern layer having a plurality of stretching patterns; and a touch electrode layer disposed on the touch pattern layer and having a plurality of touch electrodes, wherein each of the plurality of stretching patterns includes a plurality of unit patterns, wherein each of the plurality of touch electrodes includes a plurality of unit electrodes, wherein each of the plurality of unit patterns includes a first sub-unit pattern overlapping each of the plurality of unit electrode electrodes, and a second sub-unit pattern disposed inside the first sub-unit. Accordingly, laser lift off (LLO) process efficiency for the touch panel can be increased.
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公开(公告)号：US20230195249A1
公开(公告)日：2023-06-22
申请号：US17972448
申请日：2022-10-24
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , SungChul Kim , HoonBae Kim , SunYeop Kim , Jinseong Kim , JuHan Kim , Haewon Lee
IPC: G06F3/041 , H01L33/62 , G06F3/044 , H01L25/075
CPC classification number: G06F3/0412 , H01L33/62 , G06F3/0446 , H01L25/0753 , G06F3/0416
Abstract: A display device includes a substrate including a plurality of sub pixels; a first touch electrode on the substrate and overlapping at least one subpixel from the plurality of sub pixels; a second touch electrode on the substrate and spaced apart from the first touch electrode and overlapping the at least one sub pixel; an insulating layer covering the first touch electrode and the second touch electrode; a plurality of charging transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a plurality of sensing transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a planarization layer covering the plurality of charging transistors and the plurality of sensing transistors; and a light emitting diode on the planarization layer.
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公开(公告)号：US11520425B2
公开(公告)日：2022-12-06
申请号：US17344883
申请日：2021-06-10
Applicant: LG Display Co., Ltd.
Inventor： Jinseong Kim , YongChan Park , Haewon Lee , JuHan Kim
Abstract: In a touch display panel and a touch display device, a shielding pattern including the common electrode (COM) used as the touch electrode (TE) is disposed between a touch line (TL) and a data line (DL), and the touch line (TL) and the data line (DL) are arranged so as not to overlap each other in a boundary area between shielding patterns. The parasitic capacitance between the touch line (TL) and the data line (DL) can be reduced to improve the performance of touch sensing. In addition, the arrangement of the touch lines (TL) and data lines (DL) in the boundary area between shielding patterns is repeated at regular intervals to prevent an image abnormality.
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公开(公告)号：US11467685B2
公开(公告)日：2022-10-11
申请号：US17245652
申请日：2021-04-30
Applicant: LG Display Co., Ltd.
Inventor： HoonBae Kim , CheolSe Kim , SeungMok Shin , JuHan Kim , YongChan Park , HyunHo Park
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.
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