公开(公告)号：US10943544B2

公开(公告)日：2021-03-09

申请号：US16167957

申请日：2018-10-23

Applicant: LG Display Co., Ltd.

Inventor： HongJu Lee ,  JinBong Chung ,  Beom-Jin Kim

IPC: G09G5/10 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233 ,  H01L27/32 ,  G06F3/01

Abstract: An organic light emitting display device and a driving method thereof may turn on first and second transistors, wherein the first transistor electrically connects a data line and a first node of a driving transistor that drives an organic light emitting diode of each sub-pixel, and the second transistor electrically connects a second node of the driving transistor and a reference voltage line, and may provide a detection driving data voltage and a detection driving reference voltage to the first and second nodes of the driving transistor, respectively, to perform initialization; may turn off the first and second transistors to float the first and second nodes of the driving transistor, and may detect one or more from among a short and to an open of the organic light emitting diode by sensing the voltage of the first node or the second node of the driving transistor.

公开(公告)号：US11775112B2

公开(公告)日：2023-10-03

申请号：US17946693

申请日：2022-09-16

Applicant: LG Display Co., Ltd.

Inventor： HyongHwan Kim ,  JinBong Chung ,  Sunkyung Shin

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0443

Abstract: A touch driving circuit and a touch display device are disclosed. A group sensing control switch connected between lines connected to sensing units included in a touch driving circuit is disposed, thereby providing a structure in which one sensing unit can drive a touch electrode driven by another sensing unit. One sensing unit simultaneously drives two or more touch electrodes according to an operation state of a group sensing control switch to perform touch sensing, thereby providing a touch driving circuit and a touch display device capable of maintaining the resolution of touch sensing and improving touch sensitivity according to a driving environment.

公开(公告)号：US20230113773A1

公开(公告)日：2023-04-13

申请号：US17946693

申请日：2022-09-16

Applicant: LG Display Co., Ltd.

Inventor： HyongHwan Kim ,  JinBong Chung ,  Sunkyung Shin

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch driving circuit and a touch display device are disclosed. A group sensing control switch connected between lines connected to sensing units included in a touch driving circuit is disposed, thereby providing a structure in which one sensing unit can drive a touch electrode driven by another sensing unit. One sensing unit simultaneously drives two or more touch electrodes according to an operation state of a group sensing control switch to perform touch sensing, thereby providing a touch driving circuit and a touch display device capable of maintaining the resolution of touch sensing and improving touch sensitivity according to a driving environment.

公开(公告)号：US11914814B2

公开(公告)日：2024-02-27

申请号：US17946693

申请日：2022-09-16

Applicant: LG Display Co., Ltd.

Inventor： HyongHwan Kim ,  JinBong Chung ,  Sunkyung Shin

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0443

Abstract: A touch driving circuit and a touch display device are disclosed. A group sensing control switch connected between lines connected to sensing units included in a touch driving circuit is disposed, thereby providing a structure in which one sensing unit can drive a touch electrode driven by another sensing unit. One sensing unit simultaneously drives two or more touch electrodes according to an operation state of a group sensing control switch to perform touch sensing, thereby providing a touch driving circuit and a touch display device capable of maintaining the resolution of touch sensing and improving touch sensitivity according to a driving environment.

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.

公开(公告)号：US20190122616A1

公开(公告)日：2019-04-25

申请号：US16167957

申请日：2018-10-23

Applicant: LG Display Co., Ltd.

Inventor： HongJu Lee ,  JinBong Chung ,  Beom-Jin Kim

IPC: G09G3/3291 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3258

Abstract: An organic light emitting display device and a driving method thereof may turn on first and second transistors, wherein the first transistor electrically connects a data line and a first node of a driving transistor that drives an organic light emitting diode of each sub-pixel, and the second transistor electrically connects a second node of the driving transistor and a reference voltage line, and may provide a detection driving data voltage and a detection driving reference voltage to the first and second nodes of the driving transistor, respectively, to perform initialization; may turn off the first and second transistors to float the first and second nodes of the driving transistor, and may detect one or more from among a short and to an open of the organic light emitting diode by sensing the voltage of the first node or the second node of the driving transistor.