公开(公告)号：US20170192591A1

公开(公告)日：2017-07-06

申请号：US15381410

申请日：2016-12-16

Applicant: LG Display Co., Ltd.

Inventor： Hyunguk JANG ,  Cheolse KIM ,  Sungchul KIM ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU ,  Doyoung JUNG

IPC: G06F3/041 ,  G06F3/038 ,  G06F3/0354

Abstract: A touch sensing system is disclosed. The touch sensing system includes an active stylus pen that generates a first pen driving signal for detecting a touch input in synchronization with a touch driving signal input from a touch screen and a second pen driving signal for detecting an additional input related to an additional function of the active stylus pen in a touch driving period and outputs the first and second pen driving signals to the touch screen; and a touch driving device that applies the touch driving signal to the touch screen, senses the first pen driving signal in a first period of the touch driving period, and senses the second pen driving signal in a second period of the touch driving period.

公开(公告)号：US20250169323A1

公开(公告)日：2025-05-22

申请号：US18784519

申请日：2024-07-25

Applicant: LG Display Co., Ltd.

Inventor： SeongHun JEONG ,  Hyunguk JANG ,  Haye KIM

IPC: H10K59/40 ,  H10K59/122 ,  H10K59/35 ,  H10K59/38 ,  H10K59/80

Abstract: A display device which simultaneously secures a viewing angle and a touch sensing performance is discussed. The display device can include a light emitting device layer having a first light emitting area, a second light emitting area disposed adjacent to the first light emitting area and extending in a first direction, a third light emitting area disposed adjacent to the first light emitting area and extending in a second direction, and a fourth light emitting area disposed adjacent to the third light emitting area and extending in the first direction. The display device can further include an encapsulation layer covering the light emitting device layer, a touch electrode having a mesh structure non-overlapping the first to fourth light emitting areas, and a black matrix including opening portions overlapping the first to fourth light emitting areas.

公开(公告)号：US20150364078A1

公开(公告)日：2015-12-17

申请号：US14733271

申请日：2015-06-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Dahye SHIM ,  Joungmi CHOI ,  Hyunguk JANG

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2320/041 ,  G09G2330/021

Abstract: A scan driver and display device using the same are disclosed. The display device includes display panel, a data driver configured to supply a data signal to the display panel, and a scan driver formed in a non-display area of the display panel, including a shift register composed of a plurality of stages and a level shifter formed outside the display panel, and configured to supply a scan signal to the display panel using the shift register and the level shifter. The scan driver comprises: a sensor circuit unit configured to sense internal and external environmental conditions and generate a compensation circuit control signal on the basis of a sensed result; and a compensation circuit unit generating a compensation signal to compensate outputs of the plurality of stages in response to the compensation circuit control signal.

Abstract translation: 公开了一种使用其的扫描驱动器和显示装置。 显示装置包括显示面板，被配置为向显示面板提供数据信号的数据驱动器，以及形成在显示面板的非显示区域中的扫描驱动器，包括由多个级和级别构成的移位寄存器 移位器形成在显示面板外部，并且被配置为使用移位寄存器和电平移位器向显示面板提供扫描信号。 扫描驱动器包括：传感器电路单元，被配置为感测内部和外部环境条件，并且基于感测结果产生补偿电路控制信号; 以及补偿电路单元，其响应于所述补偿电路控制信号产生补偿信号以补偿所述多个级的输出。

公开(公告)号：US20250078735A1

公开(公告)日：2025-03-06

申请号：US18807274

申请日：2024-08-16

Applicant: LG Display Co., Ltd.

Inventor： Hyunguk JANG ,  EuiHyun CHUNG ,  JoungMi CHOI

IPC: G09G3/32 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device may include a display panel including a plurality of pixels; and a data driver circuit configured to supply a data signal to the plurality of the pixels through data lines. A gate driver circuit, configured to supply a gate signal to the plurality of the pixels through gate lines, is disposed in the display panel. The display panel includes a driving layer including a gate area having the gate driver circuit; and a pixel circuit layer including an active area having a pixel area in which each of the plurality of pixels is disposed and a non-active area around the active area. The pixel circuit layer includes a light emitting diode, a clock line configured to supply a clock signal to the gate driver circuit, and a shielding pattern between the light emitting diode and the clock line.

公开(公告)号：US20160042691A1

公开(公告)日：2016-02-11

申请号：US14817668

申请日：2015-08-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Sehwan NA ,  Joungmi CHOI ,  Dahye SHIM ,  Daegyu JO ,  Sohyun KIM ,  Hyunguk JANG

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/04 ,  G11C19/28

Abstract: A display device includes a display panel and a scan driver including transistors formed in a non-display area of the display panel. A compensation voltage is supplied to the scan driver through a compensation gate electrode included in at least one transistor of the scan driver. Namely, the at least one transistor includes a gate electrode, to which a signal or a voltage for activating a channel is supplied, and the compensation gate electrode, to which the compensation voltage for recovering a threshold voltage is supplied.

Abstract translation: 显示装置包括显示面板和包括形成在显示面板的非显示区域中的晶体管的扫描驱动器。 通过扫描驱动器的至少一个晶体管中包括的补偿栅电极向扫描驱动器提供补偿电压。 也就是说，至少一个晶体管包括供给用于激活通道的信号或电压的栅电极以及用于恢复阈值电压的补偿电压的补偿栅电极。

公开(公告)号：US20170285771A1

公开(公告)日：2017-10-05

申请号：US15392783

申请日：2016-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Doyoung JUNG ,  Cheolse KIM ,  Buyeol LEE ,  Hyunguk JANG ,  Sanghyuck BAE

IPC: G06F3/038 ,  G06F3/044 ,  G06F3/041 ,  G06F3/0354

CPC classification number: G06F3/0383 ,  G06F3/03545 ,  G06F3/038 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: An active stylus pen is insensitive to external noise and has enhanced sensing performance with respect to an uplink signal input from a touch screen. The active stylus pen includes a housing connected to a ground, a conductive tip protruding outwardly from one side of the housing and brought into contact with a touch screen, a conductor layer surrounding an outer surface of the housing with an insulator interposed therebetween, a pen driving circuit connected to the conductor layer, and a switch connecting the conductor layer and the pen driving circuit. The pen driving circuit is cased by the housing, receives an uplink signal and a touch sensor driving signal from the touch screen, generates a pen driving signal synchronized with the touch sensor driving signal and outputs the generated pen driving signal to the touch screen through the conductive tip.

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：US20170060278A1

公开(公告)日：2017-03-02

申请号：US15249113

申请日：2016-08-26

Applicant: LG Display Co., Ltd.

Inventor： Doyoung JUNG ,  Hyunguk JANG ,  Sungchul KIM ,  Sanghyuck BAE ,  Sungsu HAN ,  Suyun JU

IPC: G06F3/0354 ,  G06F3/0487 ,  G06F3/041

CPC classification number: G06F3/03545 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: An active stylus pen generates a pen driving signal synchronized with a touchscreen driving signal received from a touchscreen and outputs the pen driving signal to the touchscreen. The active stylus pen includes a pressure sensing unit for sensing pressure when touching the touchscreen to generate writing pressure information and a signal processor for modulating the pen driving signal in response to the signal level of the writing pressure information and outputs the modulated signal as a pen driving signal in which the writing pressure information has been reflected.

Abstract translation: 有源触控笔产生与从触摸屏接收的触摸屏驱动信号同步的笔驱动信号，并将笔驱动信号输出到触摸屏。 有源触笔包括用于在触摸触摸屏时感测压力以产生书写压力信息的压力感测单元和用于响应于写入压力信息的信号电平来调制笔驱动信号的信号处理器，并输出调制信号作为笔 写入压力信息已被反映的驱动信号。

公开(公告)号：US20210142735A1

公开(公告)日：2021-05-13

申请号：US17091810

申请日：2020-11-06

Applicant: LG Display Co., Ltd.

Inventor： Youngsung CHO ,  Byeongseong SO ,  Hyunguk JANG

IPC: G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit, a gate driving circuit, and a timing controller, each pixel of the display panel includes a light-emitting diode, a driving transistor, second to sixth switching transistors, and a storage capacitor, and at a sensing step at which the light-emitting diode does not emit light, a conduction path that is connected through the sixth switching transistor, the driving transistor, the second switching transistor, and the third switching transistor is formed, and an electrical signal reflecting a threshold voltage of one of the second to fourth switching transistors is transferred to a data line through the conduction path.

公开(公告)号：US20180181241A1

公开(公告)日：2018-06-28

申请号：US15824928

申请日：2017-11-28

Applicant: LG Display Co., Ltd.

Inventor： Doyoung JUNG ,  Hyunwoo JANG ,  Hyunguk JANG ,  Sanghyuck BAE ,  Suyun JU

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/0412 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/0488

Abstract: A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.