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公开(公告)号：US20210124448A1
公开(公告)日：2021-04-29
申请号：US16985013
申请日：2020-08-04
Applicant: LG Display Co., Ltd.
Inventor： HwiDeuk Lee , YongChan Park , Taeyun Kim , Yangsik Lee
Abstract: The present disclosure relates to a touch display device, and more specifically, relates to a touch display device having a bottom emission structure. According to the touch display device, by disposing a touch electrode and a touch planarization layer between a substrate and a thin film transistor, a touch sensing function can be implemented without affecting the disposing of components for display driving. Further, by disposing a shielding electrode to which a constant voltage or a signal equal to a touch driving signal is applied between the touch electrode and a light emitting element, a noise of a touch sensing signal caused by display driving can be reduced and the performance of touch sensing performed together with the display driving can be improved.
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公开(公告)号：US10860128B2
公开(公告)日：2020-12-08
申请号：US16448834
申请日：2019-06-21
Applicant: LG Display Co., Ltd.
Inventor： SeungMok Shin , CheolSe Kim , JuHan Kim , HoonBae Kim , HyunHo Park , Jinseong Kim , YongChan Park
Abstract: A touch display panel and device. A common electrode is provided between a display driving signal line and a touch line. The common electrode functions as a shielding pattern that prevents display noise of a touch sensing signal without increasing the number of masks used to form the touch display device. A touch load reducing layer is disposed in a region between the touch line and the common electrode, except for a region in which the common electrode and pixel electrodes overlap. This reduces the load of the touch line and improves touch sensing performance without having an adverse effect on display driving.
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公开(公告)号：US09733760B2
公开(公告)日：2017-08-15
申请号：US14984969
申请日：2015-12-30
Applicant: LG Display Co., Ltd.
Inventor： CheolSe Kim , BuYeol Lee , YongChan Park , Suyun Ju
IPC: G06F3/041 , G06F3/044 , G02F1/1333
CPC classification number: G06F3/0416 , G02F1/13338 , G06F3/041 , G06F3/0412 , G06F3/0414 , G06F3/044 , G06F2203/04105
Abstract: The present disclosure provides an in-cell touch type display device, a touch circuit, a display driver, and an in-cell touch type display device driving method, which can not only sense the position of a touch generated by the user, but also sense the touch force, with which the user presses the screen during the touch, in order to provide various functions in various types.
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公开(公告)号：US09075472B2
公开(公告)日：2015-07-07
申请号：US14475114
申请日：2014-09-02
Applicant: LG Display Co., Ltd.
Inventor： YongChan Park , SangSoo Hwang
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G06F3/045 , G06F3/047 , G06F2203/04101 , G06F2203/04104 , G06F2203/04113 , G09G3/36 , G09G3/3666 , G09G3/3674 , G09G3/3677 , G09G3/3696 , G09G2300/0413 , G09G2310/0221 , G09G2310/0224 , G09G2354/00
Abstract: Disclosed are a display device comprising panel portions and a driving method thereof, which are capable of dividing the display panel into two or more panel portions and adding a touch mode between the display modes of each panel portion, thereby improving the frequency of the touch sensing or the touch report rate. The display device comprising panel portions and the driving method thereof can reduce the pulse width of the signals from 4H 8 phase to 2H 4 phase by using an oxide TFT and maintain or reduce the number of the signal lines applied to the gate driver of the partial display panel, thereby having the advantages in terms of the bezel.
Abstract translation: 公开了一种显示装置，其包括面板部分及其驱动方法，其能够将显示面板分成两个或更多个面板部分，并且在每个面板部分的显示模式之间增加触摸模式，从而提高触摸感测的频率 或触摸报告率。 包括面板部分的显示装置及其驱动方法可以通过使用氧化物TFT来减小从4H 8相到2H 4相的信号的脉冲宽度，并且保持或减少施加到部分的栅极驱动器的信号线的数量 显示面板，从而在边框方面具有优点。
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公开(公告)号：US11921944B2
公开(公告)日：2024-03-05
申请号：US17942805
申请日：2022-09-12
Applicant: LG Display Co., Ltd.
Inventor： HoonBae Kim , CheolSe Kim , SeungMok Shin , JuHan Kim , YongChan Park , HyunHo Park
CPC classification number: G06F3/0412 , G06F3/04164 , G06F3/0443 , G06F3/047 , G09G3/2096 , G02F1/13338 , G02F1/13606 , G02F2201/123 , G06F2203/04107 , G09G2354/00
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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Patent Agency Ranking
公开(公告)号：US11740720B2
公开(公告)日：2023-08-29
申请号：US17894851
申请日：2022-08-24
Applicant: LG Display Co., Ltd.
Inventor： YongChan Park , JuHong Kim
CPC classification number: G06F3/0412 , G06F3/04164 , G06F3/0443 , G06F2203/04107
Abstract: A touch display device includes a display cathode electrode, a first touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a first touch line coupled with a touch driving circuit, a first touch bridge coupled with the first touch line, a second touch cathode electrode adjacent to and disposed in the same layer as the display cathode electrode, a second touch line coupled with the touch driving circuit, and a second touch bridge coupled with the second touch line. The first touch cathode electrode is electrically separated from and the second touch cathode electrode is electrically shorted with the display cathode electrode. The first touch bridge is coupled with the first touch cathode electrode. The second touch bridge is separated from the second touch cathode electrode, and the second touch line and the second touch cathode electrode are separated from each other.
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公开(公告)号：US11307705B2
公开(公告)日：2022-04-19
申请号：US16913384
申请日：2020-06-26
Applicant: LG Display Co., Ltd.
Inventor： HwiDeuk Lee , Yangsik Lee , YongChan Park
Abstract: A touch display device has a small bezel size even when touch routing lines connecting a touch sensor to a touch sensing circuit are disposed in a non-display area and can improve touch sensitivity by preventing the formation of parasitic capacitance caused by the touch routing lines.
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公开(公告)号：US11243629B2
公开(公告)日：2022-02-08
申请号：US17018890
申请日：2020-09-11
Applicant: LG Display Co., Ltd.
Inventor： Yangsik Lee , HwiDeuk Lee , YongChan Park , Sungsu Han
Abstract: Embodiments of the disclosure relate to touch display devices. A shielding pattern to which a constant voltage is applied is placed between the touch routing line and the encapsulation part without overlapping the touch routing line. Thus, it is possible to block the noise due to the signal line positioned under the encapsulation part by the electric field generated by the shielding pattern. Further, the metal disposed on the same layer as the shielding pattern in the planarized area of the encapsulation part may be used as a touch routing line, reducing the resistance and width of the touch routing line and hence the planarized area of the encapsulation part. Thus, it is possible to provide a touch display device for which an increase in the non-active area has been reduced and display noise has been reduced upon touch sensing.
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公开(公告)号：US11099677B2
公开(公告)日：2021-08-24
申请号：US17064349
申请日：2020-10-06
Applicant: LG Display Co., Ltd.
Inventor： Yangsik Lee , HwiDeuk Lee , YongChan Park
Abstract: Embodiments of the disclosure relate to touch display devices. The difference in parasitic capacitance due to the difference in length between the touch routing lines may be reduced by separately arranging touch electrode lines in the active area and connecting the touch routing line connected with each portion of a touch electrode line with the touch routing line connected with each portion of another touch electrode line. Therefore, it is possible to reduce loads and the differences in touch sensing depending on the connection structure and position of the touch routing line by driving the touch electrode line in a double-routing structure. By so doing, the performance of touch sensing may be enhanced.
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公开(公告)号：US11054926B2
公开(公告)日：2021-07-06
申请号：US16727341
申请日：2019-12-26
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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