公开(公告)号：US20220208113A1

公开(公告)日：2022-06-30

申请号：US17558149

申请日：2021-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Jaeyi CHOI

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

Abstract: Disclosed are a gate driver circuit having a reduced size, and a display device including the same. The gate driver circuit includes a plurality of stage blocks for outputting n gate signals (n is a positive integer). Each stage block includes each start stage circuit including a blank start circuit for receiving a block selection signal, and a signal output circuit for outputting a carry signal and a gate signal; and a plurality of normal stage circuits connected to each start stage circuit.

公开(公告)号：US20210201814A1

公开(公告)日：2021-07-01

申请号：US17118397

申请日：2020-12-10

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi CHOI

IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

Abstract: A gate driving circuit and a light emitting display apparatus including the same are disclosed, in which current leakage of a control node may be avoided. The gate driving circuit includes first to mth stage circuits, wherein each of the first to mth stage circuits includes first to fifth control nodes, a node control circuit controlling a voltage of each of the first to fourth control nodes based on a first front carry signal, a sensing control circuit controlling a voltage of the fifth control node based on a line sensing preparation signal, a second front carry signal and a first reset signal, and a first node reset circuit controlling the voltage of the first control node based on the voltage of the fifth control node and a second reset signal, wherein the first node reset circuit may include a discharge path having two thin film transistors connected between a gate low potential voltage line and the fifth control node.

公开(公告)号：US20200074937A1

公开(公告)日：2020-03-05

申请号：US16557088

申请日：2019-08-30

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi CHOI

IPC: G09G3/3291 ,  G09G3/3266

Abstract: The present disclosure relates to a gate driver and an organic light-emitting display device including same. A gate driver according to an embodiment of the present disclosure includes a plurality of stages. Each of the stages includes: a first pull-up transistor configured to output a carry clock to a first output terminal as a carry signal while a Q node is bootstrapped to a voltage higher than a gate on voltage; a second pull-up transistor configured to output a scan clock to a second output terminal as a scan signal while the Q node is bootstrapped; and holding transistors configured to operate based on a voltage of a QB node, which QB node is charged and discharged in a manner reverse to that of the Q node. The holding transistors are connected to the second output terminal and the Q node, and the holding transistors are electrically isolated from the first output terminal.

公开(公告)号：US20180337682A1

公开(公告)日：2018-11-22

申请号：US15967035

申请日：2018-04-30

Applicant: LG Display Co., Ltd.

Inventor： Shinji TAKASUGI ,  Wooseok CHOI ,  Minkyu CHANG ,  Jaeyi CHOI

IPC: H03K21/18 ,  G09G3/3241

Abstract: A gate shift register and an organic light emitting diode display including the same are disclosed. The gate shift register includes a first stage and a second stage that output image display gate pulses during an image data writing period and selectively output a sensing gate pulse in a vertical blanking interval in which image display data is not written. The first stage includes a node Q1, a node Qbo, a node M, a first sensing control block activating the node Q1, and a second sensing control block deactivating the node Qbo. The second stage includes a node Q2, a node Qbe, a third sensing control block activating the node Q2, and a fourth sensing control block deactivating the node Qbe. The first stage and the second stage share a partial circuit necessary for driving with each other.

公开(公告)号：US20240395216A1

公开(公告)日：2024-11-28

申请号：US18790899

申请日：2024-07-31

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi CHOI ,  Seongho YUN ,  SooHong CHOI

IPC: G09G3/3266 ,  G09G3/3291

Abstract: The present disclosure relates to a gate driving circuit and a display device including the gate driving circuit, and more particularly, to a gate driving circuit having a reduced size and a display device including the gate driving circuit. The gate driving circuit comprises a plurality of dummy stage circuits and stage circuits, which supply gate signals to each gate line and comprise a Q node, a QH node, and a QB node. A gate signal output circuit included in each of the stage circuits can output first to j-th gate signals based on first to j-th scan clock signals or a first low voltage according to the voltage level of the Q node or the voltage level of the QB node.

公开(公告)号：US20240206258A1

公开(公告)日：2024-06-20

申请号：US18490506

申请日：2023-10-19

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi CHOI

IPC: H10K59/131 ,  G09G3/3225

CPC classification number: H10K59/131 ,  G09G3/3225 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2320/02

Abstract: A display panel according to embodiments of the disclosure may comprise a substrate in which a display area and a non-display area are divided, a gate driving circuit disposed on the substrate and disposed in a gate driving circuit area within the non-display area, a plurality of gate clock lines disposed on the substrate and disposed in a first line area positioned outside the gate driving circuit area in the non-display area, an overcoat layer disposed on the plurality of gate clock lines and the gate driving circuit, a cathode electrode disposed in the display area and extending to the non-display area, and a load deviation compensation pattern overlapping the plurality of gate clock lines.

公开(公告)号：US20230215378A1

公开(公告)日：2023-07-06

申请号：US18054872

申请日：2022-11-11

Applicant: LG Display Co., Ltd.

Inventor： Jaeyi CHOI ,  Seongho YUN ,  SooHong CHOI

IPC: G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G09G2310/08 ,  G09G2310/0278

Abstract: The present disclosure relates to a gate driving circuit and a display device including the gate driving circuit, and more particularly, to a gate driving circuit having a reduced size and a display device including the gate driving circuit. The gate driving circuit comprises a plurality of dummy stage circuits and stage circuits, which supply gate signals to each gate line and comprise a Q node, a QH node, and a QB node. A gate signal output circuit included in each of the stage circuits can output first to j-th gate signals based on first to j-th scan clock signals or a first low voltage according to the voltage level of the Q node or the voltage level of the QB node.

公开(公告)号：US20170154579A1

公开(公告)日：2017-06-01

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.