公开(公告)号：US20210193030A1

公开(公告)日：2021-06-24

申请号：US17195125

申请日：2021-03-08

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a plurality of pixels configured to display an image, wherein the plurality of pixels is configured to be driven through a plurality of signals according to an initialization period, a programming period, a sampling period, and an emission period. The signals include a first scan signal having a high level in the initialization period and the sampling period, and having a low level in the programming period and the emission period; a second scan signal having a high level in the programming period and the sampling period, and having a low level in the initialization period and the emission period; and a voltage of a first electrode being dropped in synchronization with a falling time of the first scan signal of the initialization period.

公开(公告)号：US10971064B2

公开(公告)日：2021-04-06

申请号：US16715999

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a display panel including a plurality of pixels configured to display an image, each of at least one of the plurality of pixels including a pixel circuit and a light emitting device connected to the pixel circuit, wherein the pixel circuit includes a driving transistor controlling a driving current flowing at the light emitting device, a data supply transistor selectively providing a data voltage to a first node which is a source electrode of the driving transistor, a first light emitting control transistor selectively connecting the first node to a second node which is an electrode of the light emitting device, a first capacitor connected between the second node and a fourth node which is a gate electrode of the driving transistor, and a second capacitor connected between the second node and a gate electrode of the data supply transistor.

公开(公告)号：US11386842B2

公开(公告)日：2022-07-12

申请号：US17195125

申请日：2021-03-08

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus includes a plurality of pixels configured to display an image, wherein the plurality of pixels is configured to be driven through a plurality of signals according to an initialization period, a programming period, a sampling period, and an emission period. The signals include a first scan signal having a high level in the initialization period and the sampling period, and having a low level in the programming period and the emission period; a second scan signal having a high level in the programming period and the sampling period, and having a low level in the initialization period and the emission period; and a voltage of a first electrode being dropped in synchronization with a falling time of the first scan signal of the initialization period.

公开(公告)号：US20200211452A1

公开(公告)日：2020-07-02

申请号：US16715999

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Seyong Lee ,  Sanghun Yoon ,  YeaJin Hwang

IPC: G09G3/325 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display apparatus includes a display panel including a plurality of pixels configured to display an image, each of at least one of the plurality of pixels including a pixel circuit and a light emitting device connected to the pixel circuit, wherein the pixel circuit includes a driving transistor controlling a driving current flowing at the light emitting device, a data supply transistor selectively providing a data voltage to a first node which is a source electrode of the driving transistor, a first light emitting control transistor selectively connecting the first node to a second node which is an electrode of the light emitting device, a first capacitor connected between the second node and a fourth node which is a gate electrode of the driving transistor, and a second capacitor connected between the second node and a gate electrode of the data supply transistor.