公开(公告)号：US20240087510A1

公开(公告)日：2024-03-14

申请号：US18512589

申请日：2023-11-17

Applicant: LG Display Co., Ltd.

Inventor： JinYeong Kim ,  SeongHwan Ju ,  HyeonHo Son

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0408 ,  G09G2300/0443 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/02 ,  G09G2310/0286

Abstract: A display device according to the present invention comprises: a display panel in which a plurality of unit pixels are arranged; and a gate driver which is disposed at the upper surface of the display panel and is embedded in the plurality of unit pixels, wherein each of the plurality of unit pixels comprises a main pixel and a sub-pixel, and the gate driver supplies a gate voltage to the main pixel and the sub-pixel. Accordingly, in the present invention, even when the main pixel is defective, the sub-pixel can emit light in place of the main pixel, and thus the display device has enhanced reliability against defects.

公开(公告)号：US11837158B2

公开(公告)日：2023-12-05

申请号：US17903817

申请日：2022-09-06

Applicant: LG Display Co., Ltd.

Inventor： JinYeong Kim ,  HyeonHo Son ,  SeongHwan Ju

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0443 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233

Abstract: A display panel includes a pixel including sub pixels. The pixel includes a sub pixel area in which the sub pixels are disposed and a common area. The pixel includes a light emitting diode including an anode electrode and a cathode electrode, and the anode electrode is electrically connected to a first power line to which a high potential voltage is supplied. Each of the sub pixels includes a driving element in which a source is connected to a N1 node, a gate is connected to a N2 node, and a drain is connected to a N3 node, a capacitor connected to the N2 node and a N4 node; a N1 switching circuit connected to the N1 node; a N2 switching circuit connected to the N2 node; a N3 switching circuit connected to the N3 node; and a N4 switching circuit connected to the N4 node.

公开(公告)号：US11289635B2

公开(公告)日：2022-03-29

申请号：US16728413

申请日：2019-12-27

Applicant: LG Display Co., Ltd.

Inventor： HyeonHo Son

IPC: H01L33/38 ,  H01L33/62 ,  H01L25/075 ,  H01L33/52

Abstract: The light emitting diode display apparatus comprises a pixel disposed on a substrate and configured to display an image. The pixel includes a first light emitting portion configured to connect with a first gate line disposed in a first direction, a data line disposed in a second direction which is perpendicular to the first direction, and a first driving power line which is parallel to the data line, a second light emitting portion configured to connect a second gate line which is parallel to the first gate line, the data line, and the first driving power line, a common connection pattern configured to connect with the first light emitting portion and the second light emitting portion in common, and a third light emitting portion configured to connect between the second driving power line and the common connection pattern. Some of the common connection pattern is configured to overlap with the second driving power line.

公开(公告)号：US12295210B2

公开(公告)日：2025-05-06

申请号：US17870622

申请日：2022-07-21

Applicant: LG Display Co., Ltd.

Inventor： JinYeong Kim ,  HyeonHo Son ,  SeongHwan Ju

IPC: H10K59/12 ,  H10K59/121 ,  H10K59/131

Abstract: An electroluminescent display device having pixel driving circuit is disclosed. The display device includes a pixel that includes sub-pixels and is divided into a sub-pixel area where the sub-pixels and a first pixel driving circuit are disposed and a common area where a second pixel driving circuit is disposed. Each of the sub-pixels includes a light emitting element including an anode electrode and a cathode electrode. The anode electrode is connected to a first common line which is connected to the second pixel driving circuit.

公开(公告)号：US11922865B2

公开(公告)日：2024-03-05

申请号：US18119044

申请日：2023-03-08

Applicant: LG Display Co., Ltd.

Inventor： HyeonHo Son

IPC: G09G3/32 ,  H01L25/16 ,  H01L33/60

CPC classification number: G09G3/32 ,  H01L25/167 ,  H01L33/60 ,  G09G2300/0426 ,  G09G2300/0456 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/043

Abstract: A display device includes a first pixel that emits light toward an upper side, a second pixel that emits light toward a lower side, a plurality of lines and a pad electrode. The first pixel includes a first light emitting element, a first pixel circuit connected to the first light emitting element and some of the plurality of lines and a bottom reflective layer that is under the first light emitting element to overlap the first light emitting element and has a greater size than the first light emitting element. The second pixel includes a second light emitting element, a second pixel circuit connected to the second light emitting element and the others of the plurality of lines, and a top reflective layer that on the second light emitting element to overlap the second light emitting element and has a greater size than the second light emitting element.

公开(公告)号：US11900861B2

公开(公告)日：2024-02-13

申请号：US17775569

申请日：2020-03-13

Applicant: LG DISPLAY CO., LTD.

Inventor： JinYeong Kim ,  SeongHwan Ju ,  HyeonHo Son

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0408 ,  G09G2300/0443 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/02 ,  G09G2310/0286

Abstract: According to an aspect of the present disclosure, there is provided a display device including a display panel where a plurality of unit pixels are disposed, a gate driver disposed on an upper surface of the display panel and integrated in the plurality of unit pixels. Each of the plurality of unit pixels includes a main pixel and a redundancy pixel, and the gate driver supplies a gate voltage to the main pixel and the redundancy pixel. even if the main pixel becomes defective, the redundancy pixel can emit light instead of the main pixel, so that the reliability of the display device is improved.

公开(公告)号：US20220375401A1

公开(公告)日：2022-11-24

申请号：US17775569

申请日：2020-03-13

Applicant: LG DISPLAY CO., LTD.

Inventor： JinYeong Kim ,  SeongHwan Ju ,  HyeonHo Son

IPC: G09G3/32

Abstract: According to an aspect of the present disclosure, there is provided a display device including a display panel where a plurality of unit pixels are disposed, a gate driver disposed on an upper surface of the display panel and integrated in the plurality of unit pixels. Each of the plurality of unit pixels includes a main pixel and a redundancy pixel, and the gate driver supplies a gate voltage to the main pixel and the redundancy pixel. even if the main pixel becomes defective, the redundancy pixel can emit light instead of the main pixel, so that the reliability of the display device is improved.

公开(公告)号：US11468828B2

公开(公告)日：2022-10-11

申请号：US17386436

申请日：2021-07-27

Applicant: LG Display Co., Ltd.

Inventor： JinYeong Kim ,  HyeonHo Son ,  SeongHwan Ju

IPC: G09G3/32

Abstract: A display panel includes a pixel including sub pixels. The pixel includes a sub pixel area in which the sub pixels are disposed and a common area. The pixel includes a light emitting diode including an anode electrode and a cathode electrode, and the anode electrode is electrically connected to a first power line to which a high potential voltage is supplied. Each of the sub pixels includes a driving element in which a source is connected to a N1 node, a gate is connected to a N2 node, and a drain is connected to a N3 node, a capacitor connected to the N2 node and a N4 node; a N1 switching circuit connected to the N1 node; a N2 switching circuit connected to the N2 node; a N3 switching circuit connected to the N3 node; and a N4 switching circuit connected to the N4 node.

公开(公告)号：US11915637B2

公开(公告)日：2024-02-27

申请号：US17776562

申请日：2020-09-01

Applicant: LG DISPLAY CO., LTD.

Inventor： SeongHwan Ju ,  JinYeong Kim ,  HyeonHo Son ,  Hyunwoo Kim

IPC: G09G3/32 ,  G09G3/3266

CPC classification number: G09G3/32 ,  G09G3/3266 ,  G09G2300/0408 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/08

Abstract: According to an aspect of the present disclosure, there is provided a display device including a plurality of unit pixels comprising a main pixel and a redundancy pixel which emit a same color; and a gate driver integrated in each of the plurality of unit pixels and comprising a plurality of stages, wherein each of the plurality of stages comprises a scan driving circuit for outputting a first scan signal and a second scan signal; and an emission driving circuit for outputting an emission control signal, wherein an output timing of the first scan signal supplied to the main pixel is the same as an output timing of the first scan signal supplied to the redundancy pixel, and wherein an output timing of the second scan signal supplied to the main pixel is different from an output timing of the second scan signal supplied to the redundancy pixel.

公开(公告)号：US20240062712A1

公开(公告)日：2024-02-22

申请号：US18494542

申请日：2023-10-25

Applicant: LG Display Co., Ltd.

Inventor： JinYeong Kim ,  HyeonHo Son ,  SeongHwan Ju

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0443 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233

Abstract: A display panel includes a pixel including sub pixels. The pixel includes a sub pixel area in which the sub pixels are disposed and a common area. The pixel includes a light emitting diode including an anode electrode and a cathode electrode, and the anode electrode is electrically connected to a first power line to which a high potential voltage is supplied. Each of the sub pixels includes a driving element in which a source is connected to a N1 node, a gate is connected to a N2 node, and a drain is connected to a N3 node, a capacitor connected to the N2 node and a N4 node; a N1 switching circuit connected to the N1 node; a N2 switching circuit connected to the N2 node; a N3 switching circuit connected to the N3 node; and a N4 switching circuit connected to the N4 node.