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公开(公告)号：US09904420B2
公开(公告)日：2018-02-27
申请号：US14487594
申请日：2014-09-16
Applicant: LG DISPLAY CO., LTD.
Inventor： Hoon Bae Kim , Cheol Se Kim , Sung Su Han , Seong Kyu Kang
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416
Abstract: Discussed is a display device integrated with touch screen. The display device includes a plurality of touch groups into which a plurality of touch electrodes are physically divided, a plurality of first driving electrode lines connected to a plurality of driving electrodes of a first touch group of the touch groups, a plurality of second driving electrode lines connected to a plurality of driving electrodes of a second touch group of the touch groups, a plurality of first receiving electrode lines connected to a plurality of receiving electrodes of the first touch group, a plurality of second receiving electrode lines connected to a plurality of receiving electrodes of the second touch group, a touch driving IC configured to supply a touch driving signal to the first and second driving electrode lines, and a touch sensing IC configured to sense touch signals of the first and second receiving electrode lines.
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公开(公告)号：US09965071B2
公开(公告)日：2018-05-08
申请号：US15016250
申请日：2016-02-04
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Hoon Bae Kim , Sung Yub Lee
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F2203/04107
Abstract: In a touch display device, a controller generates a touch sync signal for controlling timing of a touch sensing period and a display period in each of a plurality of frames. A touch panel has a plurality of touch electrodes in a display area to generate touch sensing signals indicating whether or not a touch occurs during the touch sensing period. A touch sensing circuit supplies a touch drive signal to the plurality of touch electrodes during the touch sensing period and detects if the touch occurred based on the touch sensing signals received from the plurality of touch electrodes. A touch assistance line surrounds the display area and is disposed in the non-display area of the touch panel. A touch assistance signal supply circuit generates a touch assistance signal on the touch assistance line. The touch assistance signal mimics the touch drive signal during the touch sensing period.
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公开(公告)号：US10423262B2
公开(公告)日：2019-09-24
申请号：US15946725
申请日：2018-04-05
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Hoon Bae Kim , Sung Yub Lee
IPC: G06F3/041
Abstract: In a touch display device, a controller generates a touch sync signal for controlling timing of a touch sensing period and a display period in each of a plurality of frames. A touch panel has a plurality of touch electrodes in a display area to generate touch sensing signals indicating whether or not a touch occurs during the touch sensing period. A touch sensing circuit supplies a touch drive signal to the plurality of touch electrodes during the touch sensing period and detects if the touch occurred based on the touch sensing signals received from the plurality of touch electrodes. A touch assistance line surrounds the display area and is disposed in the non-display area of the touch panel. A touch assistance signal supply circuit generates a touch assistance signal on the touch assistance line. The touch assistance signal mimics the touch drive signal during the touch sensing period.
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公开(公告)号：US09990075B2
公开(公告)日：2018-06-05
申请号：US14537534
申请日：2014-11-10
Applicant: LG DISPLAY CO., LTD.
Inventor： Seong Kyu Kang , Hoon Bae Kim , Sung Su Han
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/20 , G09G3/3648 , G09G2310/08
Abstract: Disclosed are a display device and method of driving the same in which a display panel may include a plurality of gate lines, a plurality of data lines and a touch panel, the touch panel including a first touch electrode group where s number of horizontal electrodes and k (which is less than s) number of longitudinal electrodes cross each other; and a touch sensing unit that during a first period of a plurality of touch sensing periods included in a one frame period, determines whether at least one of the s number of horizontal electrodes is touched based on a plurality of sensing signals received from at least two of the s number of horizontal electrodes, and during a second period of the plurality of touch sensing periods, determines whether at least one of the s number of horizontal electrodes, which is either the same or different from the at least one of the s number of horizontal electrodes determined during the first period, is touched based on one or more sensing signals received from at least one of the k number of longitudinal electrodes.
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Patent Agency Ranking
公开(公告)号：US10372257B2
公开(公告)日：2019-08-06
申请号：US14923051
申请日：2015-10-26
Applicant: LG Display Co., Ltd.
Inventor： Hoon Bae Kim , Sun Yeop Kim , Sung Yub Lee , Seong Kyu Kang
IPC: G06F3/044 , G09G3/36 , G06F3/041 , G02F1/1333 , G02F1/1343
Abstract: A liquid crystal display device is disclosed, which may compensate for a common voltage by reflecting all of noises by which a plurality of common electrodes are affected. The liquid crystal display device comprises a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the data lines, and a plurality of pixels provided at crossing regions of the data lines and the gate lines and including pixel electrodes and common electrodes to which a common voltage is supplied, wherein a common electrode of the common electrodes is shared by two or more of the plurality of pixels. The liquid crystal display panel also includes a plurality of feedback lines that overlap the common electrodes, the plurality of feedback lines receiving a variation of the common voltage that is reflected by the common electrodes onto the plurality of feedback lines.
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公开(公告)号：US09939976B2
公开(公告)日：2018-04-10
申请号：US15169276
申请日：2016-05-31
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Sung Yub Lee
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G3/3688 , G09G3/3696 , G09G2300/0408 , G09G2300/0426 , G09G2310/027 , G09G2354/00
Abstract: Disclosed are a driver IC and a display apparatus including the same, which supply a touch auxiliary signal, having the same phase and potential difference as those of a touch signal supplied to a touch electrode which is also used as a common electrode, to a plurality of supply lines disposed in a non-display area during a touch sensing period. The driver IC includes a common voltage supply element, a touch sensing unit, and a common voltage switching unit. The common voltage switching unit connects the common voltage supply element to a plurality of touch electrode lines connected to the plurality of touch electrodes during an image display period, and during a touch sensing period, the common voltage switching unit connects the plurality of touch electrode lines to the touch sensing unit.
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公开(公告)号：US09805690B2
公开(公告)日：2017-10-31
申请号：US14537526
申请日：2014-11-10
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Hoon Bae Kim , Sung Su Han
CPC classification number: G09G5/006 , G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: A disclosed display device includes a touch panel including s number of receiving electrodes and k number of driving electrodes which are formed to intersect the receiving electrodes, k being less than s and larger than 2, the touch panel provided in an in-cell type. The display device further includes a touch sensing unit configured to respectively supply a first driving voltage and a second driving voltage to an nth driving electrode and an (n+1)th driving electrode, which are adjacent to each other among the driving electrodes, to determine whether the nth driving electrode is touched, n being a natural number which is more than one and less than k, the touch sensing unit further configured to respectively supply the first driving voltage and the second driving voltage to a kth driving electrode and a (k−1)th driving electrode to determine whether the kth driving electrode is touched.
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公开(公告)号：US09377919B1
公开(公告)日：2016-06-28
申请号：US14927425
申请日：2015-10-29
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Sung Yub Lee
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G3/3688 , G09G3/3696 , G09G2300/0408 , G09G2300/0426 , G09G2310/027 , G09G2354/00
Abstract: Disclosed are a driver IC and a display apparatus including the same, which supply a touch auxiliary signal, having the same phase and potential difference as those of a touch signal supplied to a touch electrode which is also used as a common electrode, to a plurality of supply lines disposed in a non-display area during a touch sensing period. The driver IC includes a common voltage supply element, a touch sensing unit, and a common voltage switching unit. The common voltage switching unit connects the common voltage supply element to a plurality of touch electrode lines connected to the plurality of touch electrodes during an image display period, and during a touch sensing period, the common voltage switching unit connects the plurality of touch electrode lines to the touch sensing unit.
Abstract translation: 公开了一种驱动器IC及其显示装置，它们提供与提供给也用作公共电极的触摸电极的触摸信号相同的相位和电位差的触摸辅助信号提供给多个 在触摸感测期间设置在非显示区域中的供给线。 驱动器IC包括公共电压供应元件，触摸感测单元和公共电压开关单元。 公共电压切换单元在图像显示期间将公共电压供给元件连接到与多个触摸电极连接的多个触摸电极线，并且在触摸感测期间，公共电压切换单元将多个触摸电极线 到触摸感测单元。
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公开(公告)号：US09285913B1
公开(公告)日：2016-03-15
申请号：US14726062
申请日：2015-05-29
Applicant: LG Display Co., Ltd.
Inventor： Seong Kyu Kang , Hoon Bae Kim , Sung Yub Lee
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F2203/04107
Abstract: In a touch display device, a controller generates a touch sync signal for controlling timing of a touch sensing period and a display period in each of a plurality of frames. A touch panel has a plurality of touch electrodes in a display area to generate touch sensing signals indicating whether or not a touch occurs during the touch sensing period. A touch sensing circuit supplies a touch drive signal to the plurality of touch electrodes during the touch sensing period and detects if the touch occurred based on the touch sensing signals received from the plurality of touch electrodes. A touch assistance line surrounds the display area and is disposed in the non-display area of the touch panel. A touch assistance signal supply circuit generates a touch assistance signal on the touch assistance line. The touch assistance signal mimics the touch drive signal during the touch sensing period.
Abstract translation: 在触摸显示装置中，控制器产生用于控制多个帧中的每个帧中的触摸感测时段的定时和显示周期的触摸同步信号。 触摸面板在显示区域中具有多个触摸电极，以产生指示在触摸感测时段期间是否发生触摸的触摸感测信号。 触摸感测电路在触摸感测时段期间向多个触摸电极提供触摸驱动信号，并且基于从多个触摸电极接收的触摸感测信号来检测触摸是否发生。 触摸辅助线围绕显示区域并且设置在触摸面板的非显示区域中。 触摸辅助信号提供电路在触摸辅助线路上产生触摸辅助信号。 触摸辅助信号在触摸感测期间模拟触摸驱动信号。
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