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公开(公告)号：US11069140B2
公开(公告)日：2021-07-20
申请号：US16424764
申请日：2019-05-29
Applicant: LG DISPLAY CO., LTD.
Inventor： HyunWoo Jang , Kyungjin Jang
Abstract: A display device includes a display panel in which a plurality of subpixels are disposed and the display panel comprises a first active area in which N number of subpixels among the plurality of subpixels are disposed, and a second active area in which M number of subpixels among the plurality of subpixels are disposed and is located outside of the first active area, and a first image and a second image are displayed on the subpixels disposed in the first active area, and the first image and a blank image are displayed on the subpixels disposed in the second active area.
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公开(公告)号：US11847974B2
公开(公告)日：2023-12-19
申请号：US17963444
申请日：2022-10-11
Applicant: LG DISPLAY CO., LTD.
Inventor： Kyungjin Jang , HyeonSik Kim , UnSang Yu , Kwangdug Choi , JinBong Chung , Sunkyung Shin , Sojung Jung , Beom-Jin Kim , Bongchoon Kwak
IPC: G09G3/30 , G09G3/3266 , G09G3/3233
CPC classification number: G09G3/3266 , G09G3/3233 , G09G2300/0842 , G09G2310/0297 , G09G2340/0435 , G09G2354/00
Abstract: A display panel sets a focus area per frame, based on focus area setting information and focus area reference line information received from the outside, control the number of gate lines simultaneously driven according to the focus area, and display a rendered image per focus area, thereby preventing the quality degradation of the image perceived by the user and increasing the frame rate of the display panel, and enhancing the quality of the virtual reality experience provided by the virtual reality device.
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公开(公告)号：US10120432B2
公开(公告)日：2018-11-06
申请号：US15096016
申请日：2016-04-11
Applicant: LG DISPLAY CO., LTD.
Inventor： Kyungjin Jang
Abstract: A touch sensing system and a method of controlling power consumption thereof are disclosed. The touch sensing system includes a plurality of sensing units, which sample a voltage received from a touch screen and accumulate the sampled voltage, and a plurality of analog-to-digital converters converting an output of the sensing units into digital data. The sensing units and the analog-to-digital converters are divided into a plurality of groups in an idle state. Each of the plurality of groups includes at least two sensing units and one analog-to-digital converter. At least one sensing unit included in at least one group is powered down in the idle state. An analog-to-digital converter is powered on during the group it belongs to is powered on.
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Patent Agency Ranking
公开(公告)号：US20170003780A1
公开(公告)日：2017-01-05
申请号：US14983328
申请日：2015-12-29
Applicant: LG Display Co., Ltd.
Inventor： Sangyong Lee , Kyungjin Jang , Jaekyu Park , Youngwoo Jo
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G3/20
Abstract: A touch sensing circuit is configured to supply touch drive signals to electrodes of a touch sensitive display device and detect corresponding touch sense signals from the electrodes in response to the supplied touch drive signals, a touch sense signal indicating a change in self-capacitance of a driven electrode in response to a touch input on the driven electrode. The touch sensing circuit is further configured to integrate, for a first predetermined duration of time, a measure of each of the touch sense signals, to generate a first integrated signal corresponding to each touch sense signal; integrate, for a second predetermined duration of time, the first integrated signal, to generate a second integrated signal corresponding to each touch sense signal; and determine presence of one or more touch inputs on one or more of the electrodes based on the second integrated signal.
Abstract translation: 触摸感测电路被配置为向触摸敏感显示装置的电极提供触摸驱动信号，并响应于所提供的触摸驱动信号检测来自电极的相应的触摸感测信号，触摸感测信号指示电容的自身电容的变化 驱动电极响应于驱动电极上的触摸输入。 触摸感测电路还被配置为在第一预定持续时间内集成每个触摸感测信号的测量值，以产生对应于每个触摸感测信号的第一集成信号; 在第二预定持续时间内积分第一积分信号，以产生对应于每个触摸感测信号的第二积分信号; 并且基于第二积分信号确定一个或多个电极上的一个或多个触摸输入的存在。
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5.发明授权Touch sensing system and method of controlling power consumption thereof, and display device using the same 有权触控感应系统及其功耗控制方法及使用其的显示装置公开(公告)号：US09329739B2
公开(公告)日：2016-05-03
申请号：US14075016
申请日：2013-11-08
Applicant: LG DISPLAY CO., LTD.
Inventor： Kyungjin Jang
CPC classification number: G06F1/3262 , G06F3/0416 , G06F3/044 , G06F3/05 , Y02D50/20
Abstract: A touch sensing system and a method of controlling power consumption thereof, and a display device using the same are disclosed. The touch sensing system includes a plurality of sensing units, which sample a voltage received from a touch screen and accumulate the sampled voltage, and a plurality of analog-to-digital converters converting an output of the sensing units into digital data. The sensing units and the analog-to-digital converters are divided into a plurality of groups in an idle state. Each of the plurality of groups includes at least two sensing units and one analog-to-digital converter. At least one sensing unit included in at least one group is powered down in the idle state. An analog-to-digital converter is powered on during the group it belongs to is powered on.
Abstract translation: 公开了一种触摸感测系统及其功率消耗的方法，以及使用该感测系统的显示装置。 触摸感测系统包括多个感测单元，其对从触摸屏接收的电压进行采样并累积采样电压;以及多个模数转换器，将感测单元的输出转换为数字数据。 感测单元和模拟 - 数字转换器在空闲状态下分为多个组。 多个组中的每个组包括至少两个感测单元和一个模拟 - 数字转换器。 包括在至少一个组中的至少一个感测单元在空闲状态下断电。 在其所属的组通电时，模数转换器通电。
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公开(公告)号：US10042470B2
公开(公告)日：2018-08-07
申请号：US15393125
申请日：2016-12-28
Applicant: LG Display Co., Ltd.
Inventor： MyungHo Shin , SungUk Byun , YongWoo Choi , MinWoo Hwang , KiYong Kim , Youngho Kwon , Kyungjin Jang , JaeKyu Park
Abstract: A touch sensing method, a touch sensing circuit, and a touch display device perform multifrequency touch driving by varying the frequencies of touch driving signals when sensing a touch or a touched position by outputting pulse-type touch driving by which one or more touch electrodes among a number of touch electrodes disposed on a display panel are driven sequentially. Undesired parasitic capacitance that would otherwise be caused by touch driving signals is prevented from occurring, and EMI influence is reduced.
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公开(公告)号：US09946403B2
公开(公告)日：2018-04-17
申请号：US14984740
申请日：2015-12-30
Applicant: LG Display Co., Ltd.
Inventor： Sungchul Kim , Hyunguk Jang , Sanghyuck Bae , Sungsu Han , Suyun Ju , Doyoung Jung , Kyungjin Jang , Yoonion Hwang
IPC: G06F3/045 , G06F3/041 , G06F3/044 , G06F3/0354
CPC classification number: G06F3/0418 , G06F3/03545 , G06F3/0412 , G06F3/044
Abstract: A touch sensitive display device, a method for driving the same, and a driving circuit of the display device are disclosed. The touch sensitive display device comprises a display panel comprising a plurality of pixels and a plurality of touch sensors. Each touch sensor is connected to at least one respective pixel of the pixels, the display panel driven in a plurality of successive display frame periods and during each display frame period a respective frame of image data is driven to the pixels. A touch driving circuit drives touch driving signals to the touch sensors during a touch frame that begins in a first display frame period of the display frame periods and ends in a second display frame period of the display frame periods that immediately follows the first display frame period.
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公开(公告)号：US09733778B2
公开(公告)日：2017-08-15
申请号：US14983328
申请日：2015-12-29
Applicant: LG Display Co., Ltd.
Inventor： Sangyong Lee , Kyungjin Jang , Jaekyu Park , Youngwoo Jo
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416 , G09G3/20
Abstract: A touch sensing circuit is configured to supply touch drive signals to electrodes of a touch sensitive display device and detect corresponding touch sense signals from the electrodes in response to the supplied touch drive signals, a touch sense signal indicating a change in self-capacitance of a driven electrode in response to a touch input on the driven electrode. The touch sensing circuit is further configured to integrate, for a first predetermined duration of time, a measure of each of the touch sense signals, to generate a first integrated signal corresponding to each touch sense signal; integrate, for a second predetermined duration of time, the first integrated signal, to generate a second integrated signal corresponding to each touch sense signal; and determine presence of one or more touch inputs on one or more of the electrodes based on the second integrated signal.
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