公开(公告)号：US11854484B2

公开(公告)日：2023-12-26

申请号：US17899548

申请日：2022-08-30

申请人： LG Display Co., Ltd.

发明人： Ki Min Son ,  Chang Hee Kim

IPC分类号： G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

CPC分类号： G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0852

摘要： A pixel circuit and a display device including the same are disclosed. The pixel circuit of the present 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; a first switch element configured to supply a data voltage of pixel data to a fourth node in response to a scan pulse; a second switch element configured to supply an initialization voltage to the second node in response to a first initialization pulse; a third switch element configured to supply a reference voltage lower than the initialization voltage to the third node in response to a sensing pulse; and a fourth switch element configured to supply the reference voltage to the fourth node in response to a second initialization pulse.

公开(公告)号：US11727878B2

公开(公告)日：2023-08-15

申请号：US17893987

申请日：2022-08-23

申请人： LG Display Co., Ltd.

发明人： Ki Min Son ,  Chang Hee Kim ,  Ki Bok Park

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0233

摘要： A pixel circuit and a display device including the pixel circuit are discussed. The pixel circuit can include 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 first switch element including a first electrode connected to the third node, a gate electrode to which a first light emission control pulse is applied, and a second electrode connected to a fourth node; a second switch element including a first electrode connected to the third node, a gate electrode to which a second light emission control pulse is applied, and a second electrode connected to a fifth node; and a light emitting device including an anode connected to the fifth node, and a cathode electrode to which a low potential power voltage is applied.

公开(公告)号：US12067941B2

公开(公告)日：2024-08-20

申请号：US17855152

申请日：2022-06-30

申请人： LG Display Co., Ltd.

发明人： Chang Hee Kim ,  Ki Min Son

IPC分类号： G09G3/3233 ,  G09G3/3291

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2320/0233

摘要： A pixel circuit and a display panel including the same may include a driving element including a gate connected to a first node to which a data voltage is configured to be applied, a first electrode connected to a high-potential voltage line, and a second electrode connected to a second node; a first switch element connected between the second node and a third node; a second switch element connected between the second node and a fourth node; a third switch element connected between the fourth node and a reference voltage line; a first capacitor connected between the first node and the third node; and a second capacitor connected between the third node and the fourth node.

公开(公告)号：US11798476B2

公开(公告)日：2023-10-24

申请号：US17852906

申请日：2022-06-29

申请人： LG DISPLAY CO., LTD.

发明人： Ki Min Son ,  Chang Hee Kim

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

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0233

摘要： A pixel circuit of a display device includes a driving element comprising a first electrode connected to a first node to which a pixel driving voltage is applied, a first gate electrode connected to a second node, a second electrode connected to a third node, and a second gate electrode connected to a fourth 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 and supply a data voltage to the second node; a first capacitor connected between the second node and the third node; a second capacitor connected between the third node and the fourth node; and a third capacitor connected between the fourth node and the first node, or between the fourth node and a power line to which the pixel driving voltage is applied.

公开(公告)号：US20230029234A1

公开(公告)日：2023-01-26

申请号：US17859940

申请日：2022-07-07

申请人： LG Display Co., Ltd.

发明人： Ki Min Son ,  Chang Hee Kim ,  Seok Noh

IPC分类号： G09G3/3233 ,  G09G3/3266

摘要： A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.

公开(公告)号：US11887536B2

公开(公告)日：2024-01-30

申请号：US17859940

申请日：2022-07-07

申请人： LG Display Co., Ltd.

发明人： Ki Min Son ,  Chang Hee Kim ,  Seok Noh

IPC分类号： G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021

摘要： A pixel circuit comprises a first switch element comprising a first electrode to which an initialization voltage is applied, a gate electrode to which a initialization pulse is applied, and a second electrode connected to a second node; a second switch element comprising a first electrode connected to a third node or a fourth node, a gate electrode to which a sensing pulse is applied, and a second electrode to which a reference voltage is applied; a third switch element comprising a first electrode to which a data voltage is applied, a gate electrode to which a scan pulse is applied, and a second electrode connected to the second node; and a fourth switch element comprising a first electrode connected to the third node, a gate electrode to which a first emission control pulse is applied, and a second electrode connected to the fourth node.