公开(公告)号：US20250104588A1

公开(公告)日：2025-03-27

申请号：US18974348

申请日：2024-12-09

Applicant: Samsung Display Co., LTD.

Inventor： Hai-Jung IN ,  Chulkyu KANG ,  Kimyeong EOM ,  Soon-Gi KWON ,  Min Jeong KIM

IPC: G09G3/20

Abstract: A gate driver includes: a pull-up circuit configured to pull up a gate output signal to a high voltage in response to a signal at a first node of the pull-up circuit; a first pull-down circuit configured to pull down the gate output signal to a low voltage in response to a signal at a second node of the first pull-down circuit; a second pull-down circuit configured to pull down the gate output signal to the low voltage in response to a signal at a third node of the second pull-down circuit; a first selection circuit configured to activate the first pull-down circuit and deactivate the second pull-down circuit based on a first selection signal; and a second selection circuit configured to activate the second pull-down circuit and deactivate the first pull-down circuit based on a second selection signal.

公开(公告)号：US20230360573A1

公开(公告)日：2023-11-09

申请号：US18095097

申请日：2023-01-10

Applicant: Samsung Display Co., LTD.

Inventor： Hai-Jung IN ,  Chulkyu KANG ,  Kimyeong EOM ,  Soon-Gi KWON ,  Min Jeong KIM

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2310/0267 ,  G09G2310/0291 ,  G09G2320/0214

Abstract: A gate driver includes: a pull-up circuit configured to pull up a gate output signal to a high voltage in response to a signal at a first node of the pull-up circuit; a first pull-down circuit configured to pull down the gate output signal to a low voltage in response to a signal at a second node of the first pull-down circuit; a second pull-down circuit configured to pull down the gate output signal to the low voltage in response to a signal at a third node of the second pull-down circuit; a first selection circuit configured to activate the first pull-down circuit and deactivate the second pull-down circuit based on a first selection signal; and a second selection circuit configured to activate the second pull-down circuit and deactivate the first pull-down circuit based on a second selection signal.