公开(公告)号：US20200160789A1

公开(公告)日：2020-05-21

申请号：US16689905

申请日：2019-11-20

Applicant: LG Display Co., Ltd.

Inventor： KwangMo Park

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A present disclosure relates to a method of sensing characteristic value of circuit element and display using it. The display device is able to accurately sense deterioration of the organic light-emitting diode disposed in each subpixel of a display panel and compensate for the deterioration. The method of sensing characteristic value of circuit element is able to save a sensing time for an entire display panel and improve a driving speed of the display device by efficiently performing a deterioration sensing process of the organic light-emitting diode.

公开(公告)号：US10818240B2

公开(公告)日：2020-10-27

申请号：US16689905

申请日：2019-11-20

Applicant: LG Display Co., Ltd.

Inventor： KwangMo Park

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A present disclosure relates to a method of sensing characteristic value of circuit element and display using it. The display device is able to accurately sense deterioration of the organic light-emitting diode disposed in each subpixel of a display panel and compensate for the deterioration. The method of sensing characteristic value of circuit element is able to save a sensing time for an entire display panel and improve a driving speed of the display device by efficiently performing a deterioration sensing process of the organic light-emitting diode.

公开(公告)号：US10461283B2

公开(公告)日：2019-10-29

申请号：US16297223

申请日：2019-03-08

Applicant: LG DISPLAY CO., LTD.

Inventor： YoonJu Lee ,  JeongHwan Kim ,  SooHong Choi ,  HongJae Shin ,  KwangMo Park ,  JaYeon Song

IPC: H01L51/56 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/00 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3283

Abstract: By forming a repair structure in a horizontal direction and vertical direction by using one or more repair lines between two or more pixels adjacent to each other in a display panel, even though a dark spot appears due to a defective operation of one pixel, the one pixel may be compensated to be driven by using the other pixel.

公开(公告)号：US10276078B2

公开(公告)日：2019-04-30

申请号：US14980784

申请日：2015-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： YoonJu Lee ,  JeongHwan Kim ,  SooHong Choi ,  HongJae Shin ,  KwangMo Park ,  JaYeon Song

IPC: G09G3/20 ,  G09G3/3291 ,  G09G3/00 ,  H01L27/32 ,  H01L51/56 ,  G09G3/3233 ,  G09G3/3283

Abstract: An organic light emitting display device and a method of repairing the device are discussed. According to an embodiment, the device includes a display panel having pixels, each including an OLED in every pixel area defined as scan and data lines intersect with each other and having a repair structure in at least one of horizontal and vertical directions between adjacent pixels by one or more repair lines; a timing controller configured to generate compensation data when a dark spot is generated in one of the plurality of pixels of the display panel, and adjust a magnitude of image data according to the compensation data; and a data driver configured to adjust a magnitude of a data voltage according to the image data adjusted in magnitude, and output the data voltage adjusted in magnitude to the data lines.

公开(公告)号：US11538411B2

公开(公告)日：2022-12-27

申请号：US17539864

申请日：2021-12-01

Applicant: LG DISPLAY CO., LTD.

Inventor： MooKyoung Hong ,  KwangMo Park

IPC: G09G3/3233 ,  G09G3/3208 ,  G09G3/3275 ,  G09G3/32

Abstract: A display device and a method for driving the display device are discussed, which can save costs and implement high luminance by adopting a voltage sensing scheme for accurately sensing characteristic values of the light emitting device in the subpixel for compensation while also increasing the available display area.

公开(公告)号：US11087694B2

公开(公告)日：2021-08-10

申请号：US16673650

申请日：2019-11-04

Applicant: LG Display Co., Ltd.

Inventor： KwangMo Park

IPC: G09G3/3291

Abstract: A driving voltage sensing circuit and a display device including the same. Deterioration of an organic light-emitting diode (OLED) disposed in each of subpixels is effectively compensated for by accurately sensing a change of charged capacitance depending on a current flowing through the organic light-emitting diode in a deterioration sensing period of the organic light-emitting diode. A driving voltage-for-sensing deterioration, applied to the display panel in the deterioration sensing period of the organic light-emitting diode, is maintained within a reference range. The deterioration of the organic light-emitting diode is accurately sensed by maintaining the driving voltage-for-sensing deterioration, applied in the deterioration sensing period, within the reference range.