公开(公告)号：US11776476B2

公开(公告)日：2023-10-03

申请号：US17839174

申请日：2022-06-13

Applicant: LG Display Co., Ltd.

Inventor： Hyun Soo Lee ,  Yong Won Lee ,  Seo Jun Yeom

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/04 ,  G09G2330/021

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 third electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode to which a pixel ground voltage supply voltage is applied; a first switch element configured to supply a data voltage to the second node in response to a scan pulse; and a second switch element configured to supply a first initialization voltage set to a negative voltage that is less than the pixel ground voltage supply voltage to the third node in response to a first initialization pulse.

公开(公告)号：US11663971B2

公开(公告)日：2023-05-30

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 ,  H10K59/131

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2330/02 ,  H10K59/88

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：US20230012381A1

公开(公告)日：2023-01-12

申请号：US17839174

申请日：2022-06-13

Applicant: LG Display Co., Ltd.

Inventor： Hyun Soo Lee ,  Yong Won Lee ,  Seo Jun Yeom

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283

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 third electrode connected to a third node; a light emitting element including an anode electrode connected to the third node, and a cathode electrode to which a pixel ground voltage supply voltage is applied; a first switch element configured to supply a data voltage to the second node in response to a scan pulse; and a second switch element configured to supply a first initialization voltage set to a negative voltage that is less than the pixel ground voltage supply voltage to the third node in response to a first initialization pulse.