公开(公告)号：US12283249B2

公开(公告)日：2025-04-22

申请号：US18593260

申请日：2024-03-01

Applicant: LG Display Co., Ltd.

Inventor： Dongmyoung Kim ,  HongJae Shin ,  YongHo Kim

IPC: G09G3/32 ,  G09G3/3266 ,  H10K59/121

Abstract: A display device and a gate driving panel circuit including the same are discussed. The gate driving panel circuit in an example includes an output buffer block configured to receive a clock signal and output a scan signal, and a logic block configured to control respective voltages of a Q node and a QB node electrically connected to the output buffer block. The output buffer block includes a pull-up transistor disposed between a clock node to which the clock signal is input and an output node to which the scan signal is output, and a pull-down transistor disposed between a gate low voltage node to which a gate low voltage is applied and the output node. A gate node of the pull-up transistor is electrically connected to the Q node.

公开(公告)号：US09972252B2

公开(公告)日：2018-05-15

申请号：US15205642

申请日：2016-07-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaeyi Choi ,  WooSup Shin ,  JaeYoung Oh ,  HongJae Shin

IPC: G09G3/3291 ,  H01L27/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/04 ,  G09G2330/08 ,  G09G2330/12 ,  H01L27/3276 ,  H01L27/3288 ,  H01L2251/5392

Abstract: Discussed is an organic light-emitting display panel including: an active area corresponding to an image display region; and a non-active area corresponding to a region outside of the active area, wherein the active area includes a plurality of signal lines arranged in an array, wherein the non-active area includes a pad region to which a source driver IC is mounted, and a switching structure, wherein the pad region includes a plurality of pads arranged in correspondence with the array of the signal lines, and wherein the switching structure includes: a common reference voltage pad-connection terminal connected to a common reference voltage pad of the display panel; a plurality of reference voltage line-connection terminals connected to a plurality of reference voltage lines of the display panel; and a switching circuit to switch connections between the common reference voltage pad-connection terminal and the plurality of reference voltage line-connection terminals.

公开(公告)号：US11250767B2

公开(公告)日：2022-02-15

申请号：US17129412

申请日：2020-12-21

Applicant: LG Display Co., Ltd.

Inventor： JaeKyu Park ,  SooHong Choi ,  HongJae Shin ,  Seongho Yun ,  Jeongrim Seo

IPC: G09G3/32

Abstract: A gate driving circuit and a light emitting display apparatus comprising the same are discussed, in which a charging characteristic of a control node is improved. The gate driving circuit comprises first to mth stage circuits, wherein each of the first to mth stage circuits includes first to third control nodes, a node control circuit controlling a voltage of each of the first to third control nodes, and an output buffer circuit outputting each of a scan signal, a sense signal and a carry signal in accordance with each of the first to third control nodes, the node control circuit including a node setup circuit charging a first gate high potential voltage in the first control node in response to a first carry signal supplied from a front stage circuit.

公开(公告)号：US11211013B2

公开(公告)日：2021-12-28

申请号：US17132735

申请日：2020-12-23

Applicant: LG Display Co., Ltd.

Inventor： KwangSoo Kim ,  HongJae Shin ,  JaeKyu Park

IPC: G09G3/3266

Abstract: A gate driving circuit and a display apparatus including the same are disclosed, in which a plurality of gate lines may be driven through one stage circuit. The gate driving circuit includes first to mth stage circuits outputting a plurality of scan signals by dividing the scan signals into a first signal group and a second signal group. The first to mth stage circuits are grouped into k number of stage groups having two adjacent stage circuits, stage circuits of jth stage group (j is a natural number of 1 to k−1) output the scan signals of the first signal group to be earlier than the scan signals of the second signal group, and stage circuits of (j+1)th stage group output the scan signals of the second signal group to be earlier than the scan signals of the first signal group.

公开(公告)号：US12300164B2

公开(公告)日：2025-05-13

申请号：US18396310

申请日：2023-12-26

Applicant: LG Display Co., Ltd.

Inventor： Min-June Jang ,  MiYoung Son ,  HongJae Shin

IPC: G09G3/3225 ,  H01L27/12

Abstract: A display panel and a display device are disclosed and, more specifically, the display panel includes a substrate including a display area where a plurality of subpixels are disposed, a gate driving circuit disposed in a non-display area outside the display area to supply a plurality of scan signals to the plurality of subpixels, an electrostatic discharge unit disposed in the non-display area, and a plurality of pads disposed in the non-display area and coupled with a plurality of signal lines electrically connected to the gate driving circuit and the electrostatic discharge unit, wherein the plurality of pads include, as sequentially disposed, a clock pad connected with a clock signal line, a first line pad connected with a first power line, an additional pad connected with an electrostatic discharge high-potential voltage line and an electrostatic discharge low-potential voltage line, and a second line pad connected with a second power line.

公开(公告)号：US12170067B2

公开(公告)日：2024-12-17

申请号：US18054866

申请日：2022-11-11

Applicant: LG Display Co., Ltd.

Inventor： Ingu Han ,  HongJae Shin

IPC: G09G3/3266 ,  G09G3/3233

Abstract: Embodiments of the present disclosure are related to a gate driving circuit and a display device, by a boot capacitor controlling a voltage level of a Q node at a timing that the gate driving circuit outputs a gate signal of a turn-on level and a pump capacitor controlling the voltage level of the Q node in a period that the gate signal of the turn-on level is output, a level of the gate signal can be maintained stably even in the case that the gate signal of the turn-on level is output in a long time.

公开(公告)号：US10461283B2

公开(公告)日：2019-10-29

申请号：US16297223

申请日：2019-03-08

Applicant: LG DISPLAY CO., LTD.

Inventor： YoonJu Lee ,  JeongHwan Kim ,  SooHong Choi ,  HongJae Shin ,  KwangMo Park ,  JaYeon Song

IPC: H01L51/56 ,  G09G3/20 ,  G09G3/3291 ,  G09G3/00 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3283

Abstract: By forming a repair structure in a horizontal direction and vertical direction by using one or more repair lines between two or more pixels adjacent to each other in a display panel, even though a dark spot appears due to a defective operation of one pixel, the one pixel may be compensated to be driven by using the other pixel.

公开(公告)号：US12243493B2

公开(公告)日：2025-03-04

申请号：US18585820

申请日：2024-02-23

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi Choi ,  SooHong Choi ,  HongJae Shin

IPC: G09G3/3266 ,  G09G3/3241 ,  H10K59/131

Abstract: The present disclosure relates to a display panel and a display device, and can provide a display panel and a display device that have a clock signal line arrangement structure that is advantageous to electrostatic discharge.

公开(公告)号：US20240290246A1

公开(公告)日：2024-08-29

申请号：US18443268

申请日：2024-02-15

Applicant: LG Display Co., Ltd.

Inventor： Jeongrim Seo ,  SooHong Choi ,  HongJae Shin

IPC: G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  H10K59/131

CPC classification number: G09G3/2096 ,  G09G3/3225 ,  G09G3/3266 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2320/0223

Abstract: A display panel comprising a display area including a plurality of subpixels, a gate driving circuit disposed in a non-display area outside the display area to supply a plurality of scan signals to the plurality of subpixels, and a plurality of gate high-potential voltage lines which are disposed in the non-display area for transferring a plurality of gate high-potential voltages to the gate driving circuit, wherein plurality of gate high-potential voltage lines include a first gate high-potential voltage line transferring a first gate high-potential voltage for charging a first node of the gate driving circuit, a second gate high-potential voltage line transferring a second gate high-potential voltage for charging a second node of the gate driving circuit, and a third gate high-potential voltage line which is branched from the first gate high-potential voltage line for transferring a third gate high-potential voltage to stabilize a transistor controlling the first node.

公开(公告)号：US10276078B2

公开(公告)日：2019-04-30

申请号：US14980784

申请日：2015-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： YoonJu Lee ,  JeongHwan Kim ,  SooHong Choi ,  HongJae Shin ,  KwangMo Park ,  JaYeon Song

IPC: G09G3/20 ,  G09G3/3291 ,  G09G3/00 ,  H01L27/32 ,  H01L51/56 ,  G09G3/3233 ,  G09G3/3283

Abstract: An organic light emitting display device and a method of repairing the device are discussed. According to an embodiment, the device includes a display panel having pixels, each including an OLED in every pixel area defined as scan and data lines intersect with each other and having a repair structure in at least one of horizontal and vertical directions between adjacent pixels by one or more repair lines; a timing controller configured to generate compensation data when a dark spot is generated in one of the plurality of pixels of the display panel, and adjust a magnitude of image data according to the compensation data; and a data driver configured to adjust a magnitude of a data voltage according to the image data adjusted in magnitude, and output the data voltage adjusted in magnitude to the data lines.