公开(公告)号：US12223899B2

公开(公告)日：2025-02-11

申请号：US18214845

申请日：2023-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Haksu Kim ,  Hwanjoo Lee

IPC: G09G3/3233

Abstract: Disclosed are a display device and a method for operating pixels of the display device. The display device comprises: a light-emitting element; and a pixel circuit configured to control the light-emitting element, wherein the pixel circuit includes: a capacitor connected to and disposed between a first node and a second node; and a driving transistor including a gate electrode connected to the second node; a first electrode receiving a high-potential driving voltage; and a second electrode connected to a third node, wherein the pixel circuit is configured such that the same voltage is supplied to the first node and the second node during at least a portion of an operation period of the pixel circuit. Thus, occurrence of a reference voltage related short-circuit in the light-emitting element of the pixel circuit is suppressed to prevent occurrence of defective image display in each pixel and to improve reliability thereof.

公开(公告)号：US20240127760A1

公开(公告)日：2024-04-18

申请号：US18481363

申请日：2023-10-05

Applicant: LG Display Co., Ltd.

Inventor： SeongHo Cho ,  DaeSung Jung ,  HwanJoo Lee ,  Haksu Kim

IPC: G09G3/3266 ,  B60K37/02 ,  G09G3/32

CPC classification number: G09G3/3266 ,  B60K37/02 ,  G09G3/32 ,  B60K2370/152 ,  G09G2310/0267 ,  G09G2320/068 ,  G09G2354/00 ,  G09G2380/10

Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.

公开(公告)号：US09691343B2

公开(公告)日：2017-06-27

申请号：US15235101

申请日：2016-08-12

Applicant: LG Display Co., Ltd.

Inventor： Jinho Lim ,  Jaehoon Park ,  Haksu Kim ,  Cheolhwan Lee ,  Kyunghyun Jeon

IPC: G09G3/36 ,  G09G3/3275 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044

CPC classification number: G09G3/3688 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1345 ,  G02F1/13454 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13629 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3275 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0276

Abstract: A disclosed display device comprises a data line of a display panel, a first switching circuit of the display panel, the first switching circuit including an input and a transistor to pass a test voltage from the input of the first switching circuit to a transistor electrode of the transistor, and a bridge pattern of the display panel, the bridge pattern electrically connecting the transistor electrode to the data line, the bridge pattern being in a different layer of the display panel than the transistor electrode.

公开(公告)号：US20250029565A1

公开(公告)日：2025-01-23

申请号：US18909586

申请日：2024-10-08

Applicant: LG DISPLAY CO., LTD.

Inventor： SeongHo Cho ,  DaeSung Jung ,  HwanJoo Lee ,  Haksu Kim

IPC: G09G3/3266 ,  B60K35/22 ,  B60K35/60 ,  G09G3/32

Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.

公开(公告)号：US12175933B2

公开(公告)日：2024-12-24

申请号：US18214859

申请日：2023-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Haksu Kim ,  Daesung Jung ,  Hwanjoo Lee ,  Kwanghyun Baek

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

Abstract: A display device includes a light-emitting element; a capacitor connected to and disposed between a first node and a second node; a first transistor including a first electrode connected to a reference voltage supply line and a second electrode connected to the first node, and supplying a reference voltage to the first node in response to a light-emission control signal of an n-th pixel row; a second transistor including a first electrode connected to the reference voltage supply line and a second electrode connected to the second node, and supplying the reference voltage to the second node in response to a first scan signal of an (n−1)-th pixel row; and a driving transistor including a gate electrode connected to the second node, a first electrode receiving a high-potential driving voltage, and a second electrode connected to a third node. Thus, for example, occurrence of a reference voltage related short-circuit in the light-emitting element of the display device is suppressed to prevent occurrence of defective image display in each pixel and to improve reliability thereof.

公开(公告)号：US12159591B2

公开(公告)日：2024-12-03

申请号：US18481363

申请日：2023-10-05

Applicant: LG Display Co., Ltd.

Inventor： SeongHo Cho ,  DaeSung Jung ,  HwanJoo Lee ,  Haksu Kim

IPC: G09G3/3266 ,  B60K35/60 ,  G09G3/32 ,  B60K35/22

Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.

公开(公告)号：US20240005873A1

公开(公告)日：2024-01-04

申请号：US18211932

申请日：2023-06-20

Applicant: LG Display Co., Ltd.

Inventor： Haksu Kim ,  KwangHyun Baek ,  SeongWook Choi ,  SeongHo Cho

IPC: G09G3/3266 ,  G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/32 ,  G09G2310/0267 ,  G09G2380/10

Abstract: A display apparatus may include a gate driving circuit configured to output a first light emission signal and a second light emission signal; a first pixel circuit including a first light emitting element configured to emit light based on the first light emission signal and a second light emitting element configured to emit light based on the second light emission signal; and a second pixel circuit including a third light emitting element configured to emit light based on the first light emission signal and a fourth light emitting element configured to emit light based on the second light emission signal. The display apparatus may further include a first lens disposed on each of the first light emitting element, the second light emitting element, and the third light emitting element, and at least one second lens different from the first lens and disposed on the fourth light emitting element.