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公开(公告)号：US20200073530A1
公开(公告)日：2020-03-05
申请号：US16460697
申请日：2019-07-02
Applicant: LG Display Co., Ltd.
Inventor： HoonBae KIM , SunYeop KIM , SungHoon LEE , SeungMok SHIN , SungChul KIM , Youngwoo JO , Seongkyu KANG , HongJu LEE
IPC: G06F3/041 , G06F3/0354 , G06F3/044 , G06F3/038
Abstract: A touch display device accurately distinguishes a touch input performed using a finger and a touch input performed using a pen, such as a stylus, significantly reduce a touch sensing time, simultaneously perform a display operation and a touch sensing operation, and operate in a power saving manner. Touch sensing does not restrict an image display time of a display panel. Touch inputs are sensed without degradation in touch performance, which would otherwise be caused by parasitic capacitance occurring in electrodes within the display panel, such as data lines or gate lines.
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公开(公告)号：US20200019270A1
公开(公告)日：2020-01-16
申请号：US16504783
申请日：2019-07-08
Applicant: LG DISPLAY CO., LTD.
Inventor： SeungMok SHIN , HoonBae KIM , SunYeop KIM , SungHoon LEE
Abstract: The present disclosure relates to touch display panels and touch display devices. More specifically, the touch display panels and touch display devices provided are capable of performing display driving and touch driving simultaneously or together through a ground modulation scheme. Further, by separating a power source for driving a display controller D-CTR from a power source for driving a touch controller T-CTR, and controlling respective power sources independently, it is possible to reduce power consumption. Also, by enabling a power source for driving a ground modulation circuit to be variable, it is possible to provide functions based on touch sensing under a condition of reduced power consumption.
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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：US20240220052A1
公开(公告)日：2024-07-04
申请号：US18488272
申请日：2023-10-17
Applicant: LG Display Co., Ltd.
Inventor： SungChul KIM , HoonBae KIM , SunYeop KIM
CPC classification number: G06F3/0418 , G06F1/1652 , G06F3/04164 , G09F9/301 , H03M1/001 , G06F2203/04102
Abstract: According to an aspect of the present disclosure, a display device includes: a stretchable touch panel having a plurality of touch electrodes; a stretchable display panel configured to display an image; and a touch driver configured to operate the stretchable touch panel, in which the touch driver recognizes a stretchable area of the stretchable touch panel and corrects a touch data value of the stretchable area of the stretchable touch panel, thereby improving touch performance of the stretchable touch panel.
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Patent Agency Ranking
公开(公告)号：US20220137769A1
公开(公告)日：2022-05-05
申请号：US17574017
申请日：2022-01-12
Applicant: LG DISPLAY CO., LTD.
Inventor： HoonBae KIM , SungChul KIM , SunYeop KIM , Seongkyu KANG
IPC: G06F3/041 , G06F3/0354
Abstract: A touch display device includes a first driving circuit supplying a gate signal to a part of a plurality of gate lines before a beacon period in which a beacon signal for an active stylus is generated, and a second driving circuit supplying the gate signal to another part of the plurality of gate lines after the beacon period ends, the touch display device and the driving method thereof may prevent display failure caused by the beacon signal for the active stylus.
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公开(公告)号：US20220027012A1
公开(公告)日：2022-01-27
申请号：US17350373
申请日：2021-06-17
Applicant: LG DISPLAY CO., LTD.
Inventor： HoonBae KIM , HyunWoo JANG , KiYong KIM , JaeKyu PARK , Youngwoo JO , SunChul KIM , SunYeop KIM , Seongkyu KANG
Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit and a touch driving method thereof, and more particularly, a touch display device, a touch circuit and a touch driving method thereof enable to reduce effectively a ghost phenomenon in touch electrode groups by dividing a plurality of touch electrodes into a plurality of touch electrode groups with same patterns. The touch display device may include a display panel including a touch electrode group in which a plurality of long touch electrodes with long length and a plurality of short touch electrodes with short length in a first direction are alternately arranged in a second direction; and a touch circuit sequentially performing a self-capacitance sensing operation and a mutual-capacitance sensing operation for the touch electrode group.
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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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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：US20150002421A1
公开(公告)日：2015-01-01
申请号：US14310795
申请日：2014-06-20
Applicant: LG Display Co., Ltd.
Inventor： Tae Hwan KIM , Young Joon LEE , SunYeop KIM
IPC: G06F3/041
CPC classification number: G06F3/041 , G06F3/0416 , G06F3/044
Abstract: Disclosed are a display device and a driving method thereof. The display device includes a first common electrode line connected to a first common electrode of a plurality of common electrodes, and formed to overlap a data line formed in a panel where the plurality of common electrodes are formed. The plurality of common electrodes are separated from each other in a block form, receive a common voltage in an image output period, and receive a touch driving voltage in a touch sensing period. The display device includes a second common electrode separated from the first common electrode line with a protective layer therebetween, and configured to include two second common electrode plates which are separated from each other in a left and right direction with respect to the first common electrode line.
Abstract translation: 公开了一种显示装置及其驱动方法。 显示装置包括与多个公共电极的第一公共电极连接并形成为与形成有多个公共电极的面板中形成的数据线重叠的第一公共电极线。 多个公共电极以块形式彼此分离，在图像输出周期中接收公共电压，并且在触摸感测周期中接收触摸驱动电压。 显示装置包括与第一公共电极线分离的第二公共电极，其间具有保护层，并且被配置为包括相对于第一公共电极线在左右方向上彼此分离的两个第二公共电极板 。
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