公开(公告)号：US11972728B2

公开(公告)日：2024-04-30

申请号：US18050998

申请日：2022-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jin Woo Lee ,  Yi Yeon Hwang ,  Hee Young Chae

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/02 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/028

Abstract: A light emitting display device includes a display panel including a subpixel, and a driver configured to drive the display panel, and in the subpixel, initialization of both ends of an organic light emitting diode is performed simultaneously with writing of a data voltage.

公开(公告)号：US11151925B2

公开(公告)日：2021-10-19

申请号：US17113988

申请日：2020-12-07

Applicant: LG Display Co., Ltd.

Inventor： Hye Min Park ,  Dong Yoon Lee ,  Jin Woo Lee

IPC: G09G3/20 ,  G09G3/3275 ,  G09G3/3266

Abstract: Disclosed are a light emitting display device and a driving method thereof, wherein a sensing mode of the display device includes a first sensing step in which an electrical characteristic of a first sub-pixel is sensed, a first initialization step set in advance of the first sensing step, a second sensing step in which an electrical characteristic of the second sub-pixel is sensed, and a second initialization step set in advance of the second sensing step.

公开(公告)号：US12272311B2

公开(公告)日：2025-04-08

申请号：US18517244

申请日：2023-11-22

Applicant: LG Display Co., Ltd.

Inventor： Jin Woo Lee ,  Kyung Hyun Lim ,  Ji Su Choi

IPC: G09G3/3233

Abstract: The present disclosure provides a display device including a first subpixel configured to emit light and a second subpixel; a high-potential voltage line connected to the first subpixel and the second subpixel to deliver a high-potential voltage; a low-potential voltage line connected to the first subpixel and the second subpixel configured to deliver a low-potential voltage; and a circuit connected to the low-potential voltage line and configured to sense a value corresponding to the low-potential voltage line during operation of the second subpixel and compensate for a data signal to be supplied to the first subpixel based on the value.

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.