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公开(公告)号：US20250028407A1
公开(公告)日：2025-01-23
申请号：US18909698
申请日：2024-10-08
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
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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公开(公告)号：US20230197001A1
公开(公告)日：2023-06-22
申请号：US17965414
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 , G09G3/3291 , G09G3/3266 , G09G2310/08 , G09G2300/0852 , 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 reference circuit configured to receive a high-potential voltage and to output a control voltage for controlling a driving current flowing through a light emitting element; a light emitting circuit including the light emitting element, the light emitting circuit being configured to receive the control voltage and a low-potential voltage and to control the light emitting element based on a driving voltage; 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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公开(公告)号：US20210247869A1
公开(公告)日：2021-08-12
申请号：US17245652
申请日：2021-04-30
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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4.发明申请公开(公告)号：US20200033990A1
公开(公告)日：2020-01-30
申请号：US16591155
申请日：2019-10-02
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：US20190079631A1
公开(公告)日：2019-03-14
申请号：US16123873
申请日：2018-09-06
Applicant: LG Display Co., Ltd.
Inventor： HoonBae KIM , CheolSe KIM , SunYeop KIM
Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit, and a touch sensing method. More particularly, by performing differential sensing on touch electrodes, noise components which the touch electrodes receive from display electrodes (e.g., data line, gate line, etc.) may be removed to accurately sense a touch, so that display driving and touch sensing may be normally performed simultaneously. In this manner, the display driving and the touch sensing may be normally performed simultaneously, thereby enabling implementation of a high-resolution display.
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Patent Agency Ranking
公开(公告)号：US20170068377A1
公开(公告)日：2017-03-09
申请号：US14985032
申请日：2015-12-30
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , YongChan PARK , Suyun JU
Abstract: The present disclosure provides an in-cell touch type display device including multiple first electrodes embedded in a display panel, at least one second electrode positioned outside the display panel, and a touch force sensing gap exiting between the multiple first electrodes and the second electrode such that a capacitor is formed between the multiple first electrodes and the second electrode.
Abstract translation: 本发明提供了一种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以及从多个第一电极和第二电极之间离开的触摸力感测间隙的单元内触摸型显示装置， 在多个第一电极和第二电极之间形成电容器。
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公开(公告)号：US20220276745A1
公开(公告)日：2022-09-01
申请号：US17745765
申请日：2022-05-16
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , JuHan KIM
Abstract: The present disclosure relates to a touch display device, a touch panel, a touch sensing circuit and a touch sensing method. In the touch display device, the touch panel, and the touch sensing circuit, and in the method of performing touch sensing therein, a structure in which a plurality of touch sensor groups is arranged is provided, and one of a self-capacitance touch sensing scheme and a mutual-capacitance touch sensing scheme is adaptively implemented according to the type and position of a touch event. Therefore, the number of signal lines and the number of touch channels may be reduced, and the ghost phenomenon can be reduced or be overcome when multiple touches occur.
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公开(公告)号：US20200082768A1
公开(公告)日：2020-03-12
申请号：US16563653
申请日：2019-09-06
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungSeok OH , CheolSe KIM , YoungJoon LEE , SungYub LEE
IPC: G09G3/3291 , G09G3/3233 , G09G3/3266
Abstract: A gate driver circuit, a display panel, and a display device. A number of emission start signals, with at least one a delay time, a pulse width, or a combination thereof, are supplied in a frame period in which display driving is performed at a low driving frequency. This decreases a degree by which luminance appearing in the frame period is reduced, or changes characteristics of frequency components of luminance, thereby preventing flicker from being observed. The display driving is performed at the low driving frequency reduces power consumption, and is performed at a lower driving frequency to improve the efficiency of the display device.
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公开(公告)号：US20190385551A1
公开(公告)日：2019-12-19
申请号：US16440187
申请日：2019-06-13
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM , CheolSe KIM , HoonBae KIM , SunYeop KIM , Seongkyu KANG
IPC: G09G3/36 , G06F3/041 , G02F1/1333
Abstract: The present disclosure relates to a touch display device, a touch sensing circuit, and a driving method. Further, the present disclosure relates to a touch display device, a touch sensing circuit, and a driving method, in which multiple touch electrodes are grouped into multiple touch electrode groups, and sensing is concurrently performed for each of the multiple touch electrode groups, so that excellent touch sensitivity and a fast touch sensing speed are allowed.
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公开(公告)号：US20190073074A1
公开(公告)日：2019-03-07
申请号：US16113598
申请日：2018-08-27
Applicant: LG Display Co., Ltd.
Inventor： CheolSe KIM , BuYeol LEE , JuHan KIM
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/2092 , G09G3/3266 , G09G3/3674 , G09G2310/0286 , G09G2310/067 , G09G2310/08
Abstract: The present disclosure provides a touch display panel or a touch display device and a gate driving circuit included in the touch display panel or the touch display device. The gate driving circuit includes a shift register group outputting scan signals during a display driving period and a dummy shift register group outputting dummy signal during a touch driving period. The gate driving circuit transmits a signal output immediately before a display driving period before a touch driving period ends, through dummy shift registers during the touch driving period such that the signal is used for outputting a first scan signal in the next display driving period. Accordingly, it is possible to prevent output reduction of a scan signal at the boundary between the touch driving period and the display driving period and prevent defect in an image due to the output reduction.
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