公开(公告)号：US20230307485A1

公开(公告)日：2023-09-28

申请号：US17977076

申请日：2022-10-31

Applicant: Samsung Display Co., LTD.

Inventor： Geun Tak KIM

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/44

CPC classification number: H01L27/156 ,  H01L33/24 ,  H01L33/44

Abstract: A display device includes a bank layer disposed on a substrate and defining a light-emitting area and a sub-area, a first electrode and a second electrode spaced apart from each other and extending from the light-emitting area to the sub-area, a plurality of light-emitting elements disposed on the first electrode and the second electrode in the light-emitting area, a plurality of dummy light-emitting elements disposed on the first electrode and the second electrode in the sub-area, a first connection electrode in electrical contact with an end of each of the plurality of light-emitting elements, and a second connection electrode in electrical contact with another end of each of the plurality of light-emitting elements. The sub-area includes an isolation area in which each of the first electrode and the second electrode is disconnected, and the plurality of dummy light-emitting elements are not disposed in the isolation area.

公开(公告)号：US20220102584A1

公开(公告)日：2022-03-31

申请号：US17347411

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Geun Tak KIM

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/00

Abstract: An embodiment provides a display device including: a substrate; a first electrode and a second electrode spaced from each other on the substrate; and a first light emitting element and a second light emitting element between the first electrode and the second electrode, wherein the first light emitting element and the second light emitting element are electrically insulated from each other, and the first light emitting element and the second light emitting element have different lengths.

公开(公告)号：US20220102423A1

公开(公告)日：2022-03-31

申请号：US17459355

申请日：2021-08-27

Applicant: Samsung Display Co., LTD.

Inventor： Geun Tak KIM

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A display device includes subpixels, each of the subpixels including a first electrode extending in a first direction, a second electrode extending in the first direction and spaced apart from the first electrode in a second direction, and light emitting elements disposed on the first electrode and the second electrode and extending in a direction, wherein the subpixels includes a first subpixel including first light emitting elements having a first length in the direction and a second subpixel including second light emitting elements having a second length greater than the first length in the direction.

公开(公告)号：US20220097370A1

公开(公告)日：2022-03-31

申请号：US17445171

申请日：2021-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Kyong Sub KIM ,  Geun Tak KIM ,  Jae Hoon KIM

IPC: B41J2/14

Abstract: An Inkjet printer includes a substrate on a stage. A print head unit is positioned above the stage and discharges an ink on the substrate. The print head unit includes a manifold for guiding movement of the ink in a first direction therein. A head block is under the manifold and includes a plurality of channels connected to the manifold and piezoelectric elements adjacent to the channels to discharge the ink through the channels. A nozzle unit is under the head block and includes nozzles corresponding to the channels. A dispersion plate is between the manifold and the head block and disperses the ink in a second direction intersecting the first direction to supply the ink to the head block. Resistance plates are between the dispersion plate and the head block, are formed parallel substantially to the second direction, and prevent the ink from flowing in the first direction.