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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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公开(公告)号：US20250021189A1
公开(公告)日：2025-01-16
申请号：US18676278
申请日：2024-05-28
Applicant: LG Display Co., Ltd.
Inventor： Sangkyu Kim , DeukSu Lee , SungChul Kim , SeungRok Shin , Taeyun Kim
Abstract: A touch display device and a touch driving method are presented herein. The touch display device includes a display panel having a plurality of touch electrodes, a drive circuit configured to drive the display panel, a touch circuit configured to detect a position of a stylus relative to the display panel using a downlink signal transmitted from the stylus, and a timing controller configured to control the drive circuit and the touch circuit. During a blank period while operating in a global uplink mode, the touch circuit supplies a global uplink signal to an entirety of the display panel. During a display-driving period while operating in a local uplink mode, the touch circuit supplies a plurality of local uplink signals having different phases to a plurality of regions of the display panel.
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公开(公告)号：US11768559B2
公开(公告)日：2023-09-26
申请号：US17842250
申请日：2022-06-16
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Sangkyu Kim , DeukSu Lee
CPC classification number: G06F3/04166 , G06F3/0412 , G06F3/04164 , G06F3/0446
Abstract: A touch display device and a touch driving circuit are configured to drive at least one of the plurality of first touch electrode lines disposed in a first area with a first touch driving signal having a first touch driving frequency, and drive at least one of the plurality of second touch electrode lines disposed in a second area with a second touch driving signal having a second touch driving frequency that is different from the first touch driving frequency. Each of the first touch driving frequency and the second touch driving frequency is different from a display driving frequency related to display driving. to the touch display device reduces the influence of noise, increases the signal-to-noise ratio, and reduces the influence of driving the display, thereby improving the touch sensitivity.
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公开(公告)号：US10312297B2
公开(公告)日：2019-06-04
申请号：US15391772
申请日：2016-12-27
Applicant: LG Display Co., Ltd.
Inventor： JaeGyun Lee , JiHyun Jung , SuChang An , Sangkyu Kim , Hyangmyoung Gwon , Yangsik Lee
Abstract: Disclosed is an organic light emitting display device and a touch sensing method for the same. The organic light emitting display device includes a first driving electrode disposed on a portion of a first area of a display device, a second driving electrode disposed on a portion of a second area of the display device and connected to the first driving electrode, a first sensing electrode disposed on another portion of the first area and configured to correspond to the first driving electrode, and a second sensing electrode disposed on another portion of the second area and configured to correspond to the second driving electrode. An organic light emitting display device in which a thinner thickness is implemented and calculation of a touch point is performed more quickly by effectively transmitting a driving signal and a touch sensing method for the same is provided.
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Patent Agency Ranking
公开(公告)号：US20160188097A1
公开(公告)日：2016-06-30
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 provides 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.
Abstract translation: 所公开的触摸屏显示装置包括具有数据线，栅极线和N×M子像素的显示面板，N×M子像素排列成N个子像素行和M个子像素列的矩阵，并且分别连接到对应的数据线和相应的栅极线，其中N M分别为大于或等于2的自然数。显示装置还包括触摸电极。 显示装置被配置为在第（i + 1）帧期间在第i帧期间和在与第一序列不同的第二序列中以第一序列提供连接到N个子像素行的栅极线的扫描信号，其中i 是一个正整数。 第i帧和第（i + 1）帧中的每一帧被配置为包括至少一个显示驱动模式部分和至少一个触摸驱动模式部分。
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公开(公告)号：US11741907B2
公开(公告)日：2023-08-29
申请号：US17561376
申请日：2021-12-23
Applicant: LG Display Co., Ltd.
Inventor： Byunggi Yoon , Sangkyu Kim , Sangsoo Lee
IPC: G09G3/3275
CPC classification number: G09G3/3275 , G09G2310/0297
Abstract: A display device can include a display panel including multiple pixels each of which includes multiple sub-pixels. The display device can further include multiple data lines respectively connected to the multiple sub-pixels, multiple gate lines respectively connected to the multiple pixels, and N multiplexers (MUX) (N is a natural number larger than 1) disposed at input terminals of the multiple data lines. In one horizontal (H) period, a length of a turn-on period of a first MUX can be different from that of a turn-on period of an Nth MUX, where the one H period is a period in which a scan signal is supplied through one gate line.
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公开(公告)号：US11733804B2
公开(公告)日：2023-08-22
申请号：US17840041
申请日：2022-06-14
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Sangkyu Kim , DeukSu Lee
CPC classification number: G06F3/0418 , G06F3/0412 , G06F3/0446 , G06F3/04166 , G06F2203/04107
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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公开(公告)号：US11687198B2
公开(公告)日：2023-06-27
申请号：US17737923
申请日：2022-05-05
Applicant: LG DISPLAY CO., LTD.
Inventor： KwangJo Hwang , Sangkyu Kim , JiHyun Jung , DeukSu Lee , Jaeseung Kim
IPC: G06F3/041 , G06F3/044 , H10K59/40 , H10K59/131 , H10K59/12
CPC classification number: G06F3/044 , G06F3/0443 , G06F3/0448 , G06F3/04164 , H10K59/40 , G06F2203/04103 , G06F2203/04112 , H10K59/1201 , H10K59/131
Abstract: An aspect of the present disclosure may provide a display device including: a light-emitting layer including a plurality of light-emitting areas; a plurality of touch wiring lines arranged in a first direction so as to overlap the light-emitting area; and a touch electrode formed on the plurality of touch wiring lines. Further, a method of manufacturing the display device may be provided.
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公开(公告)号：US20230004274A1
公开(公告)日：2023-01-05
申请号：US17842250
申请日：2022-06-16
Applicant: LG Display Co., Ltd.
Inventor： SeungRok Shin , Sangkyu Kim , DeukSu Lee
IPC: G06F3/041
Abstract: A touch display device and a touch driving circuit are configured to drive at least one of the plurality of first touch electrode lines disposed in a first area with a first touch driving signal having a first touch driving frequency, and drive at least one of the plurality of second touch electrode lines disposed in a second area with a second touch driving signal having a second touch driving frequency that is different from the first touch driving frequency. Each of the first touch driving frequency and the second touch driving frequency is different from a display driving frequency related to display driving. to the touch display device reduces the influence of noise, increases the signal-to-noise ratio, and reduces the influence of driving the display, thereby improving the touch sensitivity.
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