公开(公告)号：US20230008552A1

公开(公告)日：2023-01-12

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

摘要： A pixel circuit and a display panel including the same are disclosed. The pixel circuit 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：US20240169919A1

公开(公告)日：2024-05-23

申请号：US18477396

申请日：2023-09-28

申请人： LG Display Co., Ltd.

发明人： Ki Min SON ,  Chang Hee KIM

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0443

摘要： A pixel circuit and a display panel including the same are disclosed. The display panel includes: an individual switch element configured to supply a pixel driving voltage to a first sub-pixel in response to a gate signal; and a shared switch element configured to supply the pixel driving voltage to second and third sub-pixels in response to the gate signal. Each of the individual switch element and the shared switch element is a transistor having a channel width. The channel width of the shared switch element is larger than the channel width of the individual switch element.

公开(公告)号：US20240013720A1

公开(公告)日：2024-01-11

申请号：US18369257

申请日：2023-09-18

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 ,  G09G3/3283 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/08

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：US20230009494A1

公开(公告)日：2023-01-12

申请号：US17860085

申请日：2022-07-07

申请人： LG Display Co., Ltd.

发明人： Seok NOH ,  Ki Min SON

IPC分类号： G09G3/3266 ,  G09G3/3233

摘要： Disclosed are a gate driver and a display panel including the same. The gate driver according to an embodiment includes a plurality of signal transfer units cascade-connected via a carry line to which a carry signal is applied from a previous signal transfer unit, and an nth (n is a positive integer) signal transfer unit includes a first output unit configured to output a first gate signal to a first output node according to a voltage of a first control node configured to pull up an output voltage and a second control node configured to pull down the output voltage; and a second output unit configured to output a second gate signal in which a phase of the first gate signal is reversed to a second output node, wherein the second output unit may include a first pull-up transistor configured to output a high potential voltage to the second output node according to a voltage of a second control node of an (n-i)th (i is a positive integer less than n) signal transfer unit; and a second pull-down transistor configured to output a first low potential voltage to the second output node according to a voltage of a first control node of an (n+j)th (j is a natural number greater than n) signal transfer unit.

公开(公告)号：US20230071094A1

公开(公告)日：2023-03-09

申请号：US17901516

申请日：2022-09-01

申请人： LG Display Co., Ltd.

发明人： Ki Min SON ,  Seok NOH ,  Ki Bok PARK ,  Ye Won HONG

IPC分类号： H01L27/32 ,  G11C19/28 ,  G09G3/20 ,  G09G3/3266

摘要： A display panel and an electronic device including the same are disclosed. A circuit layer of the display panel includes at least a first transistor and a second transistor. The first transistor includes a first oxide semiconductor pattern, a gate electrode, a first electrode in contact with one side of the first oxide semiconductor pattern, a second electrode in contact with the other side of the first oxide semiconductor pattern, and a first-first metal pattern disposed on the substrate to overlap the first oxide semiconductor pattern. The second transistor includes a second oxide semiconductor pattern, a gate electrode, a first electrode in contact with one side of the second oxide semiconductor pattern, a second electrode in contact with the other side of the second oxide semiconductor pattern, a first-second metal pattern disposed on the substrate to overlap the second oxide semiconductor pattern, and a second metal pattern disposed between the second oxide semiconductor pattern and the first-second metal pattern.

公开(公告)号：US20230009113A1

公开(公告)日：2023-01-12

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

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：US20230008896A1

公开(公告)日：2023-01-12

申请号：US17859947

申请日：2022-07-07

申请人： LG Display Co., Ltd.

发明人： Seok NOH ,  Ki Min SON

IPC分类号： G09G3/3266 ,  G09G3/3233

摘要： An inverter circuit, a gate driver using the same, and a display device according to an embodiment are discussed. The inverter circuit can include a first transistor connected between a high potential voltage line and a first node; a second transistor having a gate connected to the first node and turned on according to a voltage of the first node to charge a second control node to a high potential voltage of the high potential voltage line; a third transistor having a gate connected to a first control node, a first electrode connected to the first node, and a second electrode connected to the second control node; and a fourth transistor having a gate connected to the first control node, a first electrode connected to the second control node, and a second electrode connected to a low potential voltage line.

公开(公告)号：US20240257749A1

公开(公告)日：2024-08-01

申请号：US18539482

申请日：2023-12-14

申请人： LG Display Co., Ltd.

发明人： Ki Min SON ,  Ki Bok PARK ,  Chang Hee KIM

IPC分类号： G09G3/3233 ,  G09G3/3266

CPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2310/08

摘要： Disclosed are a display panel, a pixel circuit arranged therein and a display device including the same. The display panel includes a sub-pixel of a first color, a sub-pixel of a second color, and a sub-pixel of a third color. Each of the sub-pixels of the first color, the second color, and the third color includes: a driving element including a first electrode coupled to a first node, a gate electrode coupled to a second node, and a second electrode coupled to a third node. The display panel includes a light emitting element including an anode electrode connected to the fourth node and configured to be driven by a current from the driving element; a first capacitor connected between the second node and the third node; and a second capacitor coupled between a constant voltage line and the third node or between the third node and the fourth node.

公开(公告)号：US20240194150A1

公开(公告)日：2024-06-13

申请号：US18471129

申请日：2023-09-20

申请人： LG Display Co., Ltd.

发明人： Seok NOH ,  Ki Min SON

IPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/3291

CPC分类号： G09G3/3266 ,  G09G3/32 ,  G09G3/3291 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286

摘要： A gate driver according to an embodiment and a display device using the same are disclosed. The gate driver includes a plurality of signal transmitters, wherein an nth signal transmitter includes, a (1-1)th output circuit configured to output a carry signal to a first output node according to a voltage of a first control node and a voltage of a second control node, a (1-2)th output circuit configured to output a boosting signal to a second output node according to a voltage of the first control node and a voltage of the second control node, wherein the (1-2)th output circuit includes a pull-up transistor configured to apply a gate high voltage to the first output node, a pull-down transistor configured to apply a gate low voltage to the first output node, and a first capacitor connected between a gate of the pull-up transistor and the second output node.

公开(公告)号：US20230073753A1

公开(公告)日：2023-03-09

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

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.