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公开(公告)号：US20240085999A1
公开(公告)日：2024-03-14
申请号：US18227055
申请日：2023-07-27
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM
IPC: G06F3/041 , G09G3/3258
CPC classification number: G06F3/0412 , G09G3/3258 , G06F3/044
Abstract: A touch display device can include a display panel including a plurality of data lines, a plurality of gate lines, a plurality of subpixels, and a plurality of touch electrodes, each of the plurality of subpixels including a light emitting element and a driving transistor; and a signal conversion circuit configured to supply a driving signal to the plurality of subpixels in the display panel or a driving circuit connected to the display panel. Also, the driving signal can have a signal waveform corresponding to a signal waveform of a first power signal or a signal waveform of a second power signal.
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公开(公告)号：US20220326778A1
公开(公告)日：2022-10-13
申请号：US17850312
申请日：2022-06-27
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , HoonBae KIM , SunYeop KIM
Abstract: Embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit. More particularly, embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit capable of preventing touch sensitivity from being affected by display driving even though simultaneously performing the display driving and touch driving by supplying a data voltage to a plurality of data lines disposed in a display panel, supplying a common voltage to a plurality of common electrodes disposed in the display panel, displaying an image through the display panel, and supplying a common voltage to the common electrodes.
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公开(公告)号：US20220216271A1
公开(公告)日：2022-07-07
申请号：US17701178
申请日：2022-03-22
Applicant: LG DISPLAY CO., LTD.
Inventor： CheolSe KIM , JuHan KIM
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.
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公开(公告)号：US20210200417A1
公开(公告)日：2021-07-01
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.
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25.发明申请公开(公告)号：US20200264726A1
公开(公告)日：2020-08-20
申请号：US16872089
申请日：2020-05-11
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , YongChan PARK , Suyun JU
Abstract: The present embodiments relate to a touch technology and, more particularly, to a touch display device, which includes multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap existing between the multiple first electrodes and the at least one second electrode, a method for driving the same, and a driving circuit for driving the multiple first electrodes and the at least one second electrode. The present embodiments, as described above, make it possible to sense not only a touch position, but also a touch force, with which the user presses the screen during a touch.
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Patent Agency Ranking
公开(公告)号：US20200212116A1
公开(公告)日：2020-07-02
申请号：US16726609
申请日：2019-12-24
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , JuHan KIM
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.
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公开(公告)号：US20200004365A1
公开(公告)日：2020-01-02
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：US20170293388A1
公开(公告)日：2017-10-12
申请号：US15478613
申请日：2017-04-04
Applicant: LG DISPLAY CO., LTD.
Inventor： Sungsu HAN , CheolSe KIM , SungChul KIM , Suyun JU
IPC: G06F3/041 , G02F1/1333 , G02F1/1343 , G06F3/044
CPC classification number: G06F3/0416 , G02F1/13338 , G02F1/134309 , G06F3/0412 , G06F3/0414 , G06F3/044
Abstract: A driver circuit, a touch display device, and a method of driving the touch display device. Touching force is sensed by driving a plurality of first electrodes disposed in a display panel and a second electrode located outside of the display panel. The first electrodes corresponding to force sensors for sensing the touching force and the second electrode are driven by alternating in-phase driving and antiphase driving. Touching force components are selectively and accurately extracted from sensing data, and the touching force can be accurately sensed.
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公开(公告)号：US20170192508A1
公开(公告)日：2017-07-06
申请号：US15391077
申请日：2016-12-27
Applicant: LG Display Co., Ltd.
Inventor： MyungJin LIM , CheolSe KIM , Yong-Su HAM , Taeheon KIM , YongWoo LEE , YuSeon KHO , Seulgi CHOI
CPC classification number: G06F3/016 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/04112
Abstract: Provided are a display device and a method of driving the same. The display device includes: a touch sensitive element having an electroactive layer and a plurality of electrodes disposed on at least one of a top surface and a bottom surface of the electroactive layer; a display panel disposed under the touch sensitive element; and a touch sensor disposed under the touch sensitive element and having a plurality of touch electrodes, and each of the plurality of electrodes of the touch sensitive element overlaps with one touch electrode from among the plurality of touch electrodes in a one to one correspondence.
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公开(公告)号：US20230004251A1
公开(公告)日：2023-01-05
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
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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