公开(公告)号：US12051347B2

公开(公告)日：2024-07-30

申请号：US17977453

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Yi Yeon Hwang ,  Sung Wook Choi ,  Kil Hwan Oh

IPC: G09G3/00 ,  G09G3/3258 ,  G02F1/13 ,  G02F1/1362

CPC classification number: G09G3/006 ,  G09G3/3258 ,  G02F1/1309 ,  G02F1/136268 ,  G09G2320/0295 ,  G09G2330/10 ,  G09G2330/12

Abstract: A light emitting display device can include a display panel configured to display an image; a driver configured to drive the display panel; a controller configured to control the driver; and a defect sensing circuit configured to sense a current through a driving voltage line transmitting a driving voltage for driving of the display panel, and output a sensing value based on the current for determining whether an element in a subpixel of the display panel is defective.

公开(公告)号：US20240257759A1

公开(公告)日：2024-08-01

申请号：US18514731

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

Inventor： Hee Young Chae ,  Kil Hwan Oh ,  Sung Wook Choi

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2320/043

Abstract: The present disclosure provides a light emitting display device including a display panel configured to display an image, a data driver configured to drive the display panel, and a timing controller configured to control the data driver, wherein the display panel includes a first sub-pixel connected to a data line but not a sensing line, and a second sub-pixel connected to the data line and the sensing line.

公开(公告)号：US11881170B2

公开(公告)日：2024-01-23

申请号：US17978728

申请日：2022-11-01

Applicant: LG Display Co., Ltd.

Inventor： Jong Sin Park ,  Sung Wook Choi ,  Jin Woo Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A light emitting display device is disclosed that includes an organic light emitting diode having an anode electrode connected to a first power line and a cathode electrode, a capacitor configured to store a data voltage and having a first electrode and a second electrode, and a driving transistor having a first electrode connected to the cathode electrode of the organic light emitting diode, a gate electrode connected to the first electrode of the capacitor, and a second electrode connected to the second electrode of the capacitor and a second power line. The driving transistor applies an initialization voltage to a node connected to the cathode electrode of the organic light emitting diode and the first electrode of the driving transistor.

公开(公告)号：US20230215358A1

公开(公告)日：2023-07-06

申请号：US17978728

申请日：2022-11-01

Applicant: LG Display Co., Ltd.

Inventor： Jong Sin Park ,  Sung Wook Choi ,  Jin Woo Lee

IPC: G09G3/3291 ,  H01L27/32 ,  H01L27/12

CPC classification number: G09G3/3291 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/124 ,  H01L27/3276 ,  G09G2300/0842 ,  G09G2320/0247

Abstract: A light emitting display device is disclosed that includes an organic light emitting diode having an anode electrode connected to a first power line and a cathode electrode, a capacitor configured to store a data voltage and having a first electrode and a second electrode, and a driving transistor having a first electrode connected to the cathode electrode of the organic light emitting diode, a gate electrode connected to the first electrode of the capacitor, and a second electrode connected to the second electrode of the capacitor and a second power line. The driving transistor applies an initialization voltage to a node connected to the cathode electrode of the organic light emitting diode and the first electrode of the driving transistor.