公开(公告)号：US20240221623A1

公开(公告)日：2024-07-04

申请号：US18496921

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Sang Myoung LEE ,  Su Bin PARK ,  Sang Hyun KANG ,  Dae Cheol KIM ,  Do Yeong PARK ,  Joon HUH

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2310/0267 ,  G09G2310/0272

Abstract: A display device that includes multiple pixels, each pixel includes a light emitting element, a multiple of transistors, multiple voltage sources and capacitors. The pixel circuit is designed and the pixels are driven so that a driving current going through the light emitting element is independent of a threshold voltage of a driving transistor of the multiple transistors. As a result, luminance variation due to threshold voltage can be minimized, and residual image can be reduced.

公开(公告)号：US20250166564A1

公开(公告)日：2025-05-22

申请号：US18916447

申请日：2024-10-15

Applicant: Samsung Display Co., LTD.

Inventor： Sang Hyun KANG ,  Do Hyun KANG ,  Oh Chul KWON ,  Pan Ju KIM ,  Byung Kwan SONG ,  Joo Sun YOON ,  Sang Myoung LEE ,  Joon HUH

IPC: G09G3/3233

Abstract: A display device includes pixels connected to scan lines, data lines, and emission control lines, a start signal generator configured to generate a first start signal corresponding to a first emission control signal supplied in a write period of a frame period, in which a data signal is supplied, and a second start signal corresponding to a second emission control signal supplied in a maintenance period of the frame period, in which the data signal is maintained, and having a width that is different from a width of the first start signal, a selector configured to supply the first start signal or the second start signal based on a control signal from a controller, and an emission driver configured to supply the first emission control signal or the second emission control signal to the emission control lines based on the first start signal or the second start signal.

公开(公告)号：US20240196652A1

公开(公告)日：2024-06-13

申请号：US18468159

申请日：2023-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Myoung LEE ,  Sang Hyun KANG ,  Joon HUH ,  Seong Hyun JIN

IPC: H10K59/121 ,  H10K59/131

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131

Abstract: A display device includes: a first metal layer on a substrate; an active layer on the first metal layer; a second metal layer on the active layer; a third metal layer on the second metal layer; a first transistor including: a semiconductor region at the active layer; a drain electrode on a first side of the semiconductor region; a source electrode on a second side of the semiconductor region; and a gate electrode at the second metal layer; a first capacitor including: a first capacitor electrode at the first metal layer, and electrically connected to the gate electrode of the first transistor; and a second capacitor electrode integral with the source electrode of the first transistor, and on a third side of the semiconductor region of the first transistor; and a compensation pattern at the active layer, and on a fourth side of the semiconductor region of the first transistor.