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：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.

公开(公告)号：US09123296B2

公开(公告)日：2015-09-01

申请号：US14546176

申请日：2014-11-18

Applicant: LG Display Co., Ltd.

Inventor： WooJin Nam ,  HongJae Shin

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/08 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0256 ,  G09G2310/061 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2330/027

Abstract: Disclosed are an organic light emitting display device and a display panel thereof, which are capable of performing a recovery driving for recovering a threshold voltage of a driving transistor to be within a range of compensation for the threshold voltage if the threshold voltage of the driving transistor deviates from the range of the compensation for the threshold voltage as a driving time of the driving transistor of a pixel increases.

Abstract translation: 公开了一种有机发光显示装置及其显示面板，其能够执行用于将驱动晶体管的阈值电压恢复到阈值电压补偿范围内的恢复驱动，如果驱动晶体管的阈值电压 偏离像素驱动晶体管的驱动时间的阈值电压的补偿的范围增加。