公开(公告)号：US20240203350A1

公开(公告)日：2024-06-20

申请号：US18506786

申请日：2023-11-10

Applicant: LG Display Co., Ltd.

Inventor： Yong Won LEE ,  Ki Young KWON ,  Jung Woo KO

IPC: G09G3/3233

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

Abstract: Disclosed is a pixel circuit and a display device including the pixel circuit. The pixel circuit includes a driving element connected to a first node, a second node, and a third node; a first capacitor connected between the second node and a fourth node; a second capacitor connected between the third node and the fourth node; a light emitting element; a first switch element supplying an initialization voltage to the fourth node; a second switch element supplying the initialization voltage to the second node; a third switch element supplying a data voltage to the second node; and a fourth switch element supplying a reference voltage to the third node or to a fifth node connected to an anode electrode of the light emitting element.

公开(公告)号：US20230094280A1

公开(公告)日：2023-03-30

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

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：US20240212615A1

公开(公告)日：2024-06-27

申请号：US18475830

申请日：2023-09-27

Applicant: LG Display Co., Ltd.

Inventor： Yong Won LEE ,  Ji Soo YEOM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2330/06

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.

公开(公告)号：US20250148977A1

公开(公告)日：2025-05-08

申请号：US18768798

申请日：2024-07-10

Applicant: LG Display Co., Ltd.

Inventor： Yong Won LEE ,  Jong Yoon HWANG

IPC: G09G3/3233

Abstract: A pixel circuit and a display device including the same are discussed. The pixel circuit in one example includes a driving element having 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 first capacitor connected between the second node and a fourth node, a second capacitor connected between the third node and the fourth node, a light emitting element including an anode electrode connected to a fifth node and a cathode electrode to which a cathode voltage is applied, a first switch element configured to connect a data voltage to the second node, and a switch circuit configured to selectively apply a reference voltage to the second node and the fourth node.

公开(公告)号：US20240257743A1

公开(公告)日：2024-08-01

申请号：US18486017

申请日：2023-10-12

Applicant: LG Display Co., Ltd.

Inventor： Yong Won LEE ,  Do Hyun KIM ,  Hyun Soo LEE

IPC: G09G3/3233

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

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes a driving element connected to a first node, a second node, and a third node; a capacitor connected between the second node and the third node; a first switch element connected between a data line to which a data voltage of pixel data is applied and the second node; a second switch element connected between the first node and the second node; a third switch element; a fourth switch element; and a light emitting element. When the third switch element is turned on, a reference voltage is applied to the third node or an anode electrode of the light emitting element.