公开(公告)号：US11749213B2

公开(公告)日：2023-09-05

申请号：US17953368

申请日：2022-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Seongbaik Chu ,  Eungtaek Kim ,  Seongmin Wang ,  Young-in Hwang

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

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2310/08

Abstract: An organic light emitting display device includes a substrate, a light emitting diode, a first transistor controlling a driving current of the light emitting diode, a second transistor including a second drain electrode connected to a first source electrode of the first transistor, a second gate electrode, a second channel overlapped with the second gate electrode when viewed in a plan view, a second source electrode facing the second drain electrode with the second channel interposed therebetween, and a lower gate electrode, and a plurality of driving voltage lines transmitting a first driving voltage. The lower gate electrode of the second transistor is overlapped with the second channel when viewed in a plan view, and the lower gate electrode is electrically connected to a corresponding driving voltage line among the driving voltage lines.

公开(公告)号：US11004401B2

公开(公告)日：2021-05-11

申请号：US16434237

申请日：2019-06-07

Applicant: Samsung Display Co., Ltd.

Inventor： Seongbaik Chu ,  Eungtaek Kim ,  Seongmin Wang ,  Young-in Hwang

IPC: G06F1/00 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

Abstract: An organic light emitting display device includes a substrate, a light emitting diode, a first transistor controlling a driving current of the light emitting diode, a second transistor including a second drain electrode connected to a first source electrode of the first transistor, a second gate electrode, a second channel overlapped with the second gate electrode when viewed in a plan view, a second source electrode facing the second drain electrode with the second channel interposed therebetween, and a lower gate electrode, and a plurality of driving voltage lines transmitting a first driving voltage. The lower gate electrode of the second transistor is overlapped with the second channel when viewed in a plan view, and the lower gate electrode is electrically connected to a corresponding driving voltage line among the driving voltage lines.

公开(公告)号：US11468852B2

公开(公告)日：2022-10-11

申请号：US17216835

申请日：2021-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Seongbaik Chu ,  Eungtaek Kim ,  Seongmin Wang ,  Young-in Hwang

IPC: G09G3/00 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

Abstract: An organic light emitting display device includes a substrate, a light emitting diode, a first transistor controlling a driving current of the light emitting diode, a second transistor including a second drain electrode connected to a first source electrode of the first transistor, a second gate electrode, a second channel overlapped with the second gate electrode when viewed in a plan view, a second source electrode facing the second drain electrode with the second channel interposed therebetween, and a lower gate electrode, and a plurality of driving voltage lines transmitting a first driving voltage. The lower gate electrode of the second transistor is overlapped with the second channel when viewed in a plan view, and the lower gate electrode is electrically connected to a corresponding driving voltage line among the driving voltage lines.