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：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：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.