公开(公告)号：US20170300165A1

公开(公告)日：2017-10-19

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

IPC: G06F3/041 ,  G09G3/20 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04107 ,  G09G3/2092 ,  G09G2330/06

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.

公开(公告)号：US20160224095A1

公开(公告)日：2016-08-04

申请号：US15096016

申请日：2016-04-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungjin JANG

IPC: G06F1/32 ,  G06F3/044 ,  G06F3/041 ,  G06F3/05

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 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: 公开了触摸感测系统及其功耗控制方法。 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。

公开(公告)号：US20230178029A1

公开(公告)日：2023-06-08

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: G09G3/3266 ,  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.

公开(公告)号：US20170060337A1

公开(公告)日：2017-03-02

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: G06F3/041 ,  G06F3/0354 ,  G06F3/044

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.

Abstract translation: 公开了一种触敏显示装置，其驱动方法和显示装置的驱动电路。 触敏显示装置包括包括多个像素和多个触摸传感器的显示面板。 每个触摸传感器连接到像素的至少一个相应像素，显示面板以多个连续的显示帧周期驱动，并且在每个显示帧周期期间，图像数据的相应帧被驱动到像素。 触摸驱动电路在从显示帧周期的第一显示帧周期开始的触摸帧期间将触摸驱动信号驱动到触摸传感器，并且在紧接着第一显示帧周期的显示帧周期的第二显示帧周期结束 。

公开(公告)号：US20140132558A1

公开(公告)日：2014-05-15

申请号：US14075016

申请日：2013-11-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungjin JANG

IPC: G06F3/044

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 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: 公开了触摸感测系统及其功耗控制方法。 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。