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公开(公告)号：US20180150165A1
公开(公告)日：2018-05-31
申请号：US15812304
申请日：2017-11-14
Applicant: LG DISPLAY CO., LTD.
Inventor： CheolSe KIM , Jinseong KIM , JiYeon PARK
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/042 , G06F2203/04109 , G06K9/0004 , G06K9/0008 , G09G3/2092 , G09G2300/08
Abstract: The present embodiments relate to an all-in-one switch device as well as a touch display apparatus and a display panel including such an all-in-one switch device. The all-in-one switch device includes a switching transistor electrically connected between a pixel electrode and a data line, and a sensor pattern connected between a first electrode and a second electrode of the switching transistor. One device is enough to provide both a switching function for display driving and a sensor function for sensing a touch position and/or a fingerprint, a separate touch sensor having a large size is unnecessary, and it is possible to precisely sense a touch position and/or a fingerprint without being affected by parasitic capacitance, even in a situation where a system has a structure or a circuit in which touch sensing based on capacitance is impossible.
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12.发明申请IN-CELL TOUCH TYPE DISPLAY DEVICE, TOUCH CIRCUIT, DISPLAY DRIVER, AND IN-CELL TOUCH TYPE DISPLAY DEVICE DRIVING METHOD 有权内部触摸式显示装置，触摸电路，显示驱动器和内部触摸式显示装置驱动方法公开(公告)号：US20170068376A1
公开(公告)日：2017-03-09
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 , G02F1/1333 , G06F3/044
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.
Abstract translation: 本公开内容提供了一种单元内触摸型显示装置，触摸电路，显示驱动器和单元内触摸式显示装置驱动方法，其不仅可以感测由用户产生的触摸的位置，而且 感测用户在触摸期间按压屏幕的触摸力，以便提供各种类型的各种功能。
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公开(公告)号：US20230197002A1
公开(公告)日：2023-06-22
申请号：US17965426
申请日：2022-10-13
Applicant: LG DISPLAY CO., LTD.
Inventor： CheolSe KIM
IPC: G09G3/3233 , G09G3/3291 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G3/3291 , G09G2300/0852 , G09G2310/08 , G09G2310/061 , G09G2310/0278 , G09G2320/0233
Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a light emitting circuit including an light emitting element to receive a high-potential voltage, the light emitting circuit being configured to control the light emitting element according to a driving voltage and to output a control voltage; a reference circuit configured to receive the control voltage and a low-potential voltage and to control a driving current flowing through the light emitting element; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.
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14.发明申请公开(公告)号：US20210181893A1
公开(公告)日：2021-06-17
申请号：US17187146
申请日：2021-02-26
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: G06F3/044 , G06F3/041 , G06F3/0354 , G06F3/038
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：US20200278769A1
公开(公告)日：2020-09-03
申请号：US16875291
申请日：2020-05-15
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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Patent Agency Ranking
公开(公告)号：US20190384475A1
公开(公告)日：2019-12-19
申请号：US16439366
申请日：2019-06-12
Applicant: LG Display Co., Ltd.
Inventor： HoonBae KIM , CheolSe KIM , SungChul KIM , SunYeop KIM , Seongkyu KANG
Abstract: A touch display device, a data driving circuit, and a driving method are provided. The touch display device, the data driving circuit, and the driving method convert an image digital signal into an image analog signal in response to a gamma reference voltage which is applied to the touch electrodes arranged in the display panel and which is modulated in synchronization with a first touch electrode driving signal swinging with a first amplitude and output a data signal corresponding to the converted image analog signal to the data lines. Accordingly, it is possible to effectively simultaneously perform display and touch sensing.
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公开(公告)号：US20190079623A1
公开(公告)日：2019-03-14
申请号：US16124998
申请日：2018-09-07
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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18.发明申请公开(公告)号：US20180113559A1
公开(公告)日：2018-04-26
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
CPC classification number: G06F3/0416 , G06F3/03545 , G06F3/0383 , G06F3/0412 , G06F3/044 , G06F2203/04104 , G06F2203/04111 , G06F2203/04112
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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19.发明申请DRIVING CIRCUIT, TOUCH DISPLAY DEVICE, AND METHOD FOR DRIVING THE TOUCH DISPLAY DEVICE 审中-公开驱动电路，触摸显示装置和驱动触摸显示装置的方法公开(公告)号：US20170068384A1
公开(公告)日：2017-03-09
申请号：US15258915
申请日：2016-09-07
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.
Abstract translation: 本实施例涉及触摸技术，更具体地，涉及一种触摸显示装置，其包括嵌入显示面板中的多个第一电极，位于显示面板外部的至少一个第二电极和存在于显示面板之间的触摸力感测间隙 多个第一电极和至少一个第二电极，其驱动方法和用于驱动多个第一电极和至少一个第二电极的驱动电路。 如上所述的本实施例使得不仅可以感测触摸位置，而且还可以感测用户在触摸期间按压屏幕的触摸力。
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公开(公告)号：US20240211062A1
公开(公告)日：2024-06-27
申请号：US18454604
申请日：2023-08-23
Applicant: LG Display Co., Ltd.
Inventor： Jinseong KIM , JuHan KIM , Haewon LEE , CheolSe KIM
IPC: G06F3/041 , G06F3/044 , H10K59/12 , H10K59/122 , H10K59/124 , H10K59/40
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0443 , H10K59/1201 , H10K59/122 , H10K59/124 , H10K59/40
Abstract: The present disclosure provide a display device and a display panel, the display panel including: a transistor disposed over a substrate; a first planarization layer and a second planarization layer disposed over the transistor; an anode electrode disposed in a light emitting area on the second planarization layer and electrically connected to the transistor through an anode contact hole; a touch buffer layer disposed to cover the anode electrode; a touch electrode including an overlap area overlapping a portion of the anode electrode in a non-light emitting area on the touch buffer layer; a touch line disposed under the touch electrode and electrically connected to the touch electrode through a touch contact hole; a bank covering the touch electrode and including an opening in which the light emitting area is placed; and an emission layer and a cathode electrode sequentially disposed on the anode electrode.
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