公开(公告)号：US20240087530A1

公开(公告)日：2024-03-14

申请号：US18514762

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

Inventor： Taehwi Kim ,  Juhnsuk Yoo ,  Jungchul Kim

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2320/0233

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes 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, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.

公开(公告)号：US20230206844A1

公开(公告)日：2023-06-29

申请号：US17989357

申请日：2022-11-17

Applicant: LG Display Co., Ltd.

Inventor： Taehwi Kim ,  Juhnsuk Yoo ,  Jungchul Kim

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0278 ,  G09G2300/0842 ,  G09G2320/0233

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes 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, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.

公开(公告)号：US11315497B2

公开(公告)日：2022-04-26

申请号：US16943579

申请日：2020-07-30

Applicant: LG Display Co., Ltd.

Inventor： Jaesung Yu ,  Chungsik Kong ,  Sewan Lee ,  Juhnsuk Yoo ,  Jungsoo Park ,  Mihee Shin

IPC: G09G3/3266 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3275 ,  G09G3/36

Abstract: A gate driving circuit and an image display device including the gate driving circuit are provided. In some embodiments of the present disclosure, the gate driving circuit includes a plurality of stages configured to sequentially and repeatedly output a plurality of scan pulses having different pulse widths in response to a gate control signal applied from a timing controller and the plurality of stages sequentially generate the plurality of scan pulses having different pulse widths and phase-delayed in response to three-phase clock pulses among the gate control signals and sequentially supply the plurality of scan pulses to gate lines of a display panel to selectively adjust a light emission period or a color display period for each red pixel, green pixel, and blue pixel, thereby improving image quality.

公开(公告)号：US10127859B2

公开(公告)日：2018-11-13

申请号：US15621866

申请日：2017-06-13

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Chang ,  Juhnsuk Yoo ,  Jungchul Kim ,  Sungwook Yoon ,  Hoyoung Ko

IPC: G09G3/3258 ,  G09G3/3233 ,  H01L27/32

Abstract: An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.

公开(公告)号：US11862090B2

公开(公告)日：2024-01-02

申请号：US17989357

申请日：2022-11-17

Applicant: LG Display Co., Ltd.

Inventor： Taehwi Kim ,  Juhnsuk Yoo ,  Jungchul Kim

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2320/0233

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving transistor which includes 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, and supplies a driving current to a light emitting device; a first transistor that is electrically connected between the first node and the second node; a second transistor that is electrically connected between the first node and a data voltage; a third transistor that is electrically connected between the first node and a power supply line that supplies a high potential voltage; and a storage capacitor that includes a first electrode connected to the high potential voltage and a second electrode connected to the second node.

公开(公告)号：US10004124B1

公开(公告)日：2018-06-19

申请号：US15614305

申请日：2017-06-05

Applicant: LG Display Co., Ltd.

Inventor： Hoyoung Ko ,  Juhnsuk Yoo ,  Sungwook Yoon ,  Sungwook Chang

IPC: H01J1/62 ,  H05B33/10 ,  G09G3/30 ,  H01L25/04 ,  H01L51/52 ,  H01L27/32 ,  G09G3/14

Abstract: Disclosed is a display device having a display panel including pixels, a pixel circuit of each of the pixels comprising a capacitor connected between a first and second node, a driving transistor connected to the second node, a third node, and a first supply voltage, a first transistor supplying the first supply voltage or a reference voltage to the first node, a second transistor supplying the reference voltage to the second node, a third transistor supplying a data voltage to the first node, a fourth transistor forming a current path between the second and third nodes, a fifth transistor supplying the reference voltage or a reset voltage to the fourth node, a sixth transistor supplying the reference voltage to the first node, a seventh transistor forming a current path between the third and fourth nodes, and a diode connected to the fourth node and a second supply voltage.

公开(公告)号：US10559261B2

公开(公告)日：2020-02-11

申请号：US16155422

申请日：2018-10-09

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Chang ,  Juhnsuk Yoo ,  Jungchul Kim ,  Sungwook Yoon ,  Hoyoung Ko

IPC: G09G3/3258 ,  G09G3/3233 ,  H01L27/32

Abstract: An electroluminescent display is disclosed. An electroluminescent display comprises a display panel including a plurality of pixels, each of the plurality of pixels including subpixels. A pixel circuit of each subpixels includes a driving transistor configured to drive the electroluminescent diode, a first switching transistor configured to supply a first voltage to a gate of the driving transistor in response to a first scan signal, a second switching transistor configured to supply a second voltage to the gate of the driving transistor in response to a second scan signal, a third switching transistor configured to supply the second voltage to a first electrode of the driving transistor in response to the second scan signal, a fourth switching transistor configured to supply a first supply voltage to a second electrode of the driving transistor in response to an emission control signal, a first capacitor between a first node connected to the gate electrode of the driving transistor and a second node connected to the second electrode of the driving transistor, and a second capacitor between the second node and a power supply line supplied with the second voltage or the first supply voltage.

公开(公告)号：US09741961B2

公开(公告)日：2017-08-22

申请号：US14845015

申请日：2015-09-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Jongmoo Kim ,  Juhnsuk Yoo

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56 ,  H05B33/00

CPC classification number: H01L51/524 ,  H01L51/003 ,  H01L51/5253 ,  H01L51/5293 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/5338 ,  H05B33/00

Abstract: The present disclosure relates to an organic light emitting display device and a method for manufacturing the same. The present disclosure suggests an organic light emitting display device including an organic layer; a display element layer including a display area representing video data and a pad area extended from the display area, on the organic layer; film elements formed on the display element layer; a film type printed circuit board connected to the pad area; and a reinforcing adhesive filling a space between the film type printed circuit board and the film elements.