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公开(公告)号：US09983720B2
公开(公告)日：2018-05-29
申请号：US14979957
申请日：2015-12-28
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Sangkyu Kim , Jeonghoon Lee , Jeonghoon Lee
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/20 , G09G2310/08 , G09G2320/0261 , G09G2340/0435
Abstract: A disclosed touchscreen display device includes a display panel with data lines, gate lines, and N×M subpixels arranged in a matrix of N subpixel rows and M subpixel columns, and respectively connected to the corresponding data lines and the corresponding gate lines, where N and M are each a natural number greater than or equal to 2. The display device also includes touch electrodes. The display device is configured to provide a scanning signal to the gate lines connected to the N subpixel rows in a first sequence during an ith frame and in a second sequence different from the first sequence during an (i+1)th frame, where i is a positive integer. Each of the ith frame and the (i+1)th frame is configured to include at least one display driving mode section and at least one touch driving mode section.
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公开(公告)号：US09293078B2
公开(公告)日：2016-03-22
申请号：US14863217
申请日：2015-09-23
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , DeukSu Lee
CPC classification number: G09G3/2096 , G06F3/041 , G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F3/044 , G09G2300/043 , G09G2310/0208 , G09G2310/0213 , G09G2310/08 , G09G2330/02
Abstract: A display device integrated with a touch screen panel, and a method of driving the same, can prevent parasitic capacitance that would otherwise increase the load during a touch operation, lower the accuracy of touch sensing, or make touch sensing impossible. The display device includes data lines, gate lines, and a plurality of electrodes spaced apart from each other. A common voltage is applied to the electrodes in a display driving mode and a touch drive signal is applied to one or more of the electrodes in a touch driving mode. A data voltage is applied to the data lines in the display driving mode. A scan signal is supplied sequentially to the gate lines in the display driving mode and the touch drive signal or a signal corresponding to the touch drive signal is applied to one or more of the gate lines in the touch driving mode.
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公开(公告)号：US11983361B2
公开(公告)日：2024-05-14
申请号：US17884287
申请日：2022-08-09
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Jeonghoon Lee , DeukSu Lee , Yoonnara Jang
IPC: G06F3/041
CPC classification number: G06F3/04166 , G06F3/04184
Abstract: Embodiments of the present disclosure are related to a touch display device, in a structure that a touch electrode line is disposed to be divided on a plurality of sub-areas included in an active area, by synchronizing a driving of the touch electrode line adjacent to a boundary of the sub-area, or by performing a differential sensing processing by sharing a touch sensing signal detected from the touch electrode line, thus an accuracy of a touch sensing for an area adjacent to the boundary of the sub-area can be improved.
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4.发明申请Display Device Having In-Cell Touch Structure and Method of Driving the Same 有权具有单元内触摸结构的显示设备及其驱动方法公开(公告)号：US20170060289A1
公开(公告)日：2017-03-02
申请号：US14836762
申请日：2015-08-26
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , JiHyun Jung , DeukSu Lee , Taeyun Kim
CPC classification number: G06F3/044 , G06F3/0416 , G09G3/20 , G09G5/003 , G09G2300/0426 , G09G2354/00
Abstract: A display driver circuit comprises first circuitry to generate a touch drive signal, and second circuitry to provide the touch drive signal to touch sense electrodes of the display device and a touch data signal to data lines of the display device during a touch period and to provide display data signals to data lines of the display device during a display period. A touch gate signal is provided to gate lines of the display device during the touch period. The touch drive signal, the touch data signal, and the touch gate signal mimic a reference waveform, but amplitudes of one or more of the touch drive signal, the touch data signal, and the touch gate signal are overdriven by their respective overdrive amplitude with respect to the reference waveform during their respective overdrive duration.
Abstract translation: 显示驱动器电路包括产生触摸驱动信号的第一电路和第二电路，用于在触摸期间内提供触摸驱动信号以触摸显示装置的感测电极和触摸数据信号到显示装置的数据线，并提供 在显示期间向显示装置的数据线显示数据信号。 在触摸周期期间，向显示装置的栅极线提供触摸栅极信号。 触摸驱动信号，触摸数据信号和触摸栅极信号模拟参考波形，但是触摸驱动信号，触摸数据信号和触摸栅极信号中的一个或多个的幅度被它们各自的过驱动幅度驱动， 在相应的过驱动持续时间期间相对于参考波形。
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公开(公告)号：US20230004253A1
公开(公告)日：2023-01-05
申请号：US17840041
申请日：2022-06-14
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Sangkyu Kim , DeukSu Lee
Abstract: The disclosure is related to a touch display device, a shield electrode separated from a common electrode of a light-emitting element can be disposed on an area overlapping a touch electrode under an encapsulation layer, and a shield driving signal corresponding to a signal supplied to the touch electrode can be supplied to the shield electrode. Thus, the shield electrode prevents or at least reduces formation of a parasitic capacitance between an electrode or a signal line for a display driving and the touch electrode, and a touch detection performance can be improved by implementing a noise blocking function by the shield electrode.
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Patent Agency Ranking
公开(公告)号：US11199930B2
公开(公告)日：2021-12-14
申请号：US16222680
申请日：2018-12-17
Applicant: LG DISPLAY CO., LTD.
Inventor： HyunJun Min , YongMin Ha , SeungRok Shin
Abstract: Discussed is a display device including a first substrate; a display panel including first and second electrodes disposed on the first substrate, and a light-emitting layer located between the first electrode and the second electrode; an encapsulation layer disposed on the second electrode of the display panel; a first touch electrode unit disposed on the encapsulation layer and extending in one of a first direction and a second direction intersecting with the first direction; and a first passivation layer disposed on the first touch electrode unit.
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7.发明授权公开(公告)号：US10474286B2
公开(公告)日：2019-11-12
申请号：US15792409
申请日：2017-10-24
Applicant: LG Display Co., Ltd.
Inventor： SangHyuck Bae , BuYeol Lee , SeungRok Shin , CheolSe Kim , DeukSu Lee , Hyunwoo Jang , Jaeseung Kim , YoungGyu Kim , Hyunsuk Cho
IPC: G06F3/041 , G06F3/0354 , G06F3/038 , G06F3/044
Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.
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公开(公告)号：US09690437B2
公开(公告)日：2017-06-27
申请号：US14836762
申请日：2015-08-26
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , JiHyun Jung , DeukSu Lee , Taeyun Kim
CPC classification number: G06F3/044 , G06F3/0416 , G09G3/20 , G09G5/003 , G09G2300/0426 , G09G2354/00
Abstract: A display driver circuit comprises first circuitry to generate a touch drive signal, and second circuitry to provide the touch drive signal to touch sense electrodes of the display device and a touch data signal to data lines of the display device during a touch period and to provide display data signals to data lines of the display device during a display period. A touch gate signal is provided to gate lines of the display device during the touch period. The touch drive signal, the touch data signal, and the touch gate signal mimic a reference waveform, but amplitudes of one or more of the touch drive signal, the touch data signal, and the touch gate signal are overdriven by their respective overdrive amplitude with respect to the reference waveform during their respective overdrive duration.
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公开(公告)号：US12248642B2
公开(公告)日：2025-03-11
申请号：US18544601
申请日：2023-12-19
Applicant: LG Display Co., Ltd
Inventor： Jeonghoon Lee , DeukSu Lee , Sangkyu Kim , SeungRok Shin , Yoonnara Jang
Abstract: A method for sensing contactless touch using a touch sensor structure that senses contacting touch by operating some of touch electrode lines operating as touch driving electrodes and some of touch electrode lines operating as touch sensing electrodes upon contacting touch driving, as touch driving electrodes for sensing contactless touch, in a contactless touch driving period distinct from a contacting touch driving period.
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公开(公告)号：US12216855B2
公开(公告)日：2025-02-04
申请号：US18083605
申请日：2022-12-19
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungRok Shin , Sangkyu Kim , Yoonnara Jang , Jeonghoon Lee , DeukSu Lee
Abstract: The present disclosure is directed to a touch display device that is capable of reducing a load of a touch sensor structure disposed in a display panel and improving the accuracy of touch sensing capabilities of the touch display device. In one aspect, touch electrode lines disposed on an active area are disposed to be separated into a plurality of sub-areas. A number of touch routing lines connected to the touch electrode lines are disposed on the active area, thus a touch sensor structure with a reduced load can be provided while minimizing an increase of a non-active area due to an arrangement of the touch routing lines.
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