公开(公告)号：US11908405B2

公开(公告)日：2024-02-20

申请号：US17840072

申请日：2022-06-14

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of this disclosure includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element configured to be turned on according to a gate-on voltage of a scan pulse to supply a data voltage to the second node; and a second switch element configured to be turned off according to a gate-off voltage of a light emitting control pulse generated in antiphase of the scan pulse.

公开(公告)号：US20230009834A1

公开(公告)日：2023-01-12

申请号：US17855290

申请日：2022-06-30

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee

IPC: G09G3/3233 ,  H01L27/32

Abstract: A pixel circuit and a display device including the pixel circuit are disclosed. The pixel circuit according to embodiments includes a first pixel circuit connected in parallel to an initialization voltage line to which an initialization voltage is applied, and including a first-first switch element connected to a first-first gate line and a first-second switch element connected to a first-second gate line; and a second pixel circuit connected in parallel to the initialization voltage line, and including a second-first switch element connected to a second-first gate line and a second-second switch element connected to a second-second gate line, and the first-second gate line and the second-first gate line are electrically connected.

公开(公告)号：US20230008371A1

公开(公告)日：2023-01-12

申请号：US17840072

申请日：2022-06-14

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of this disclosure includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element configured to be turned on according to a gate-on voltage of a scan pulse to supply a data voltage to the second node; and a second switch element configured to be turned off according to a gate-off voltage of a light emitting control pulse generated in antiphase of the scan pulse.

公开(公告)号：US11783779B2

公开(公告)日：2023-10-10

申请号：US17952040

申请日：2022-09-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong Won Lee ,  Ki Young Kwon ,  Seo Jun Yeom

IPC: G09G3/3258 ,  G09G3/3266 ,  H10K59/12 ,  H10K59/35

CPC classification number: G09G3/3258 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0233 ,  H10K59/12 ,  H10K59/35

Abstract: A pixel circuit includes: a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode connected to a power line; a first switch element to supply a data voltage of pixel data to the second node; a second switch element to supply an initialization voltage to the second node; a third switch element to supply a reference voltage to the third node; a fourth switch element configured to connect the third node to a power line to reset a voltage of the anode electrode of the light emitting element to the pixel reference voltage; and a capacitor between the second and third node.

公开(公告)号：US20240169921A1

公开(公告)日：2024-05-23

申请号：US18491187

申请日：2023-10-20

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Seo Jun Yeom ,  Byeung Jae Woo

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/064 ,  G09G2330/021

Abstract: A pixel circuit is disclosed. The pixel circuit includes: a driving element including a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to a fourth node and configured to be driven according to the current from the driving element; a first switch element configured to supply a data voltage to the second node; a second switch element configured to supply an initialization voltage to the first node; a third switch element configured to supply a reference voltage to the third node or the fourth node; a fourth switch element configured to supply a cathode voltage or the reference voltage to the third node or the fourth node; and a fifth switch element configured to supply a pixel driving voltage to the first node.

公开(公告)号：US12272310B2

公开(公告)日：2025-04-08

申请号：US18491187

申请日：2023-10-20

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Seo Jun Yeom ,  Byeung Jae Woo

IPC: G09G5/00 ,  G09G3/3233

Abstract: A pixel circuit is disclosed. The pixel circuit includes: a driving element including a first electrode connected to a first node, a gate electrode connected to a second node, and a second electrode connected to a third node; a light emitting element including an anode electrode connected to a fourth node and configured to be driven according to the current from the driving element; a first switch element configured to supply a data voltage to the second node; a second switch element configured to supply an initialization voltage to the first node; a third switch element configured to supply a reference voltage to the third node or the fourth node; a fourth switch element configured to supply a cathode voltage or the reference voltage to the third node or the fourth node; and a fifth switch element configured to supply a pixel driving voltage to the first node.

公开(公告)号：US12008959B2

公开(公告)日：2024-06-11

申请号：US17840085

申请日：2022-06-14

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee ,  Ki Young Kwon

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2310/0272

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element discharging the second node; and a second switch element configured to supply a data voltage to the second node. The light emitting element and the first switch element are commonly connected to a VSS node to which a low-potential power supply voltage is applied.

公开(公告)号：US20240119902A1

公开(公告)日：2024-04-11

申请号：US18543613

申请日：2023-12-18

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of this disclosure includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element configured to be turned on according to a gate-on voltage of a scan pulse to supply a data voltage to the second node; and a second switch element configured to be turned off according to a gate-off voltage of a light emitting control pulse generated in antiphase of the scan pulse.

公开(公告)号：US20230008017A1

公开(公告)日：2023-01-12

申请号：US17840085

申请日：2022-06-14

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Hyun Soo Lee ,  Ki Young Kwon

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element discharging the second node; and a second switch element configured to supply a data voltage to the second node. The light emitting element and the first switch element are commonly connected to a VSS node to which a low-potential power supply voltage is applied.

公开(公告)号：US12198631B2

公开(公告)日：2025-01-14

申请号：US18475830

申请日：2023-09-27

Applicant: LG Display Co., Ltd.

Inventor： Yong Won Lee ,  Ji Soo Yeom

IPC: G09G3/30 ,  G09G3/3233

Abstract: Disclosed is a pixel circuit. The pixel circuit includes: a driving element connected to a first node, a second node, and a third node; a first switch element configured to be turned on to supply a data voltage to a fourth node; a second switch element configured to be turned on to supply a reference voltage or an initialization voltage to the fourth node; a third switch element configured to be turned on to connect the first node to the second node; a fourth switch element configured to be turned on to supply the reference voltage to the third node; a fifth switch element configured to be turned on a fourth gate signal to supply a pixel driving voltage to the first node; and a sixth switch element configured to be turned on to connect the third node to a fifth node.