Gate-Treiber und Anzeigevorrichtung damit

Details

Veröffentlichungs-Nr.

EP3035325

Aktenzeichen

EP15200117

Anmeldetag

15. Dezember 2015

Veröffentlichung

4. Dezember 2019

Erteilung

4. Dezember 2019

Rechtsraum

EP

IPC

G09G3/32G09G3/36G11C19/28

Abstract

A gate driver and a display device including the gate driver are provided which can prevent an abnormal output of a gate-high voltage from a stage by stably maintaining a discharge potential of a pull-up node (NQ). The gate driver includes a plurality of stages (STAq), and each stage (STAq) includes a pull-up transistor (TU), a pull-down transistor (TD), and a first noise removing unit (100). The pull-up transistor outputs a first clock signal, which is input to a first clock terminal (CT1), to an output terminal (OT) depending on a voltage of a pull-up node (NQ). Conversely the pull-down transistor (TD) outputs a first source voltage, input to a first source voltage terminal (VSST), to the output terminal (OT) depending on a voltage of a pull-down node (NQB) resulting from a second clcock signal which is input to a second clock terminal (CT3). The first noise removing unit (100) has a first transistor (T1) which supplies the first source voltage as a gate-off voltage to the pull-up node (NQ), in response to the clock signal input to the first clock terminal (CT1), to remove noise of the pull-up node (NQ).

Anmelder

Firma

LG Display Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete