公开(公告)号：US20230386404A1

公开(公告)日：2023-11-30

申请号：US18095721

申请日：2023-01-11

Applicant: Samsung Display Co., Ltd.

Inventor： YOON-HO KIM ,  JEONG-YOUNG KIM ,  DONGWAN PARK

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0413 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0819 ,  G09G2330/027

Abstract: A display device includes a display panel including first to (m*n−1)th pixel rows and a dummy pixel row, where each of m and n is a natural number greater than or equal to 2, an emission driver which provides emission signals to the first to (m*n−1)th pixel rows and the dummy pixel row, and a timing controller which provides an emission start signal and a dummy start signal to the emission driver. Each of the emission signals includes a plurality of on-periods and a plurality of off-periods in one frame period, and time points of off-periods of an emission signal provided to the dummy pixel row are the same as time points of off-periods of an emission signal provided to each of k*nth pixel rows, where k is a natural number greater than or equal to 1 and less than m.

公开(公告)号：US20220310734A1

公开(公告)日：2022-09-29

申请号：US17705755

申请日：2022-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： DONGWAN PARK ,  JUNGKOOK PARK ,  DOHYUN KANG

IPC: H01L27/32

Abstract: A display device includes a switching part and a first pixel circuit electrically connected to the switching part, and the switching part outputs a turn-off voltage to a first node in a first mode and outputs an initialization voltage to the first node in a second mode. The first pixel circuit includes a first transistor including a gate terminal electrically connected to the first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to an organic light emitting diode and a second transistor including a gate terminal which receives a gate signal, a first terminal which receives a data voltage, and a second terminal electrically connected to the second node.