公开(公告)号：US11482178B2

公开(公告)日：2022-10-25

申请号：US17543409

申请日：2021-12-06

Applicant: LG Display Co., Ltd.

Inventor： HaeSeung Lee ,  MooKyoung Hong

IPC: G09G3/3266

Abstract: A display device can include a display panel including a first gate line and a second gate line; and a gate driving circuit configured to output a first gate signal to the first gate line in synchronization with a first horizontal synchronization pulse, and output a second gate signal to the second gate line in synchronization with a second horizontal synchronization pulse after the first horizontal synchronization pulse, and adjust at least a portion of the first gate signal or at least a portion of the second gate signal so that an area under one pulse of the first gate signal is substantially equal to an area under one pulse of the second gate signal.

公开(公告)号：US10347186B2

公开(公告)日：2019-07-09

申请号：US15714745

申请日：2017-09-25

Applicant: LG Display Co., Ltd.

Inventor： Juseok Lee ,  HaeSeung Lee

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3233 ,  H03K19/21

Abstract: A display panel driving unit can include: a timing controller to supply a power on reset signal for starting a sensing operation for pixel compensation during a sensing period before displaying an image; a power management integrated circuit (PMIC) to supply a high level reference voltage reset signal to the timing controller, and generate a control signal; and a control circuit to receive the high level reference voltage reset signal and the PMIC, in response to the high level reference voltage reset signal transitioning from a high to low logic level and then from the low logic level back to the high logic level, shift the power on reset signal to transition from a high to low logic level and then from the low logic level back to high, to follow the high level reference voltage reset signal, and supply the power on reset signal to the timing controller.

公开(公告)号：US20220208108A1

公开(公告)日：2022-06-30

申请号：US17549552

申请日：2021-12-13

Applicant: LG Display Co., Ltd.

Inventor： HaeSeung Lee ,  MooKyoung Hong

IPC: G09G3/3266

Abstract: A display device is provided that includes a display panel including one or more sub-pixels and a gate driving circuit supplying a gate signal to the sub-pixels through gate lines, the gate driving circuit including a gate output buffer circuit including a pull-up transistor that controls a connection between a clock input node and a gate output node, and a pull-down transistor that controls a connection between a low level voltage node and the gate output node, a control circuit capable of controlling the gate output buffer circuit, and a dummy pull-down transistor whose a gate node is shared with a gate node of the pull-down transistor.

公开(公告)号：US11749205B2

公开(公告)日：2023-09-05

申请号：US17549552

申请日：2021-12-13

Applicant: LG Display Co., Ltd.

Inventor： HaeSeung Lee ,  MooKyoung Hong

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2310/027 ,  G09G2310/0291

Abstract: A display device is provided that includes a display panel including one or more sub-pixels and a gate driving circuit supplying a gate signal to the sub-pixels through gate lines, the gate driving circuit including a gate output buffer circuit including a pull-up transistor that controls a connection between a clock input node and a gate output node, and a pull-down transistor that controls a connection between a low level voltage node and the gate output node, a control circuit capable of controlling the gate output buffer circuit, and a dummy pull-down transistor whose a gate node is shared with a gate node of the pull-down transistor.