公开(公告)号：US20220216373A1

公开(公告)日：2022-07-07

申请号：US17609882

申请日：2020-03-30

Applicant: Samsung Display Co., LTD.

Inventor： Je Won YOO ,  Tae Jin KONG ,  Hee Keun LEE ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/00 ,  H01L33/62

Abstract: Provided are a display device and a manufacturing method thereof. The display device comprises: a substrate; a first electrode and a second electrode disposed on the substrate to be spaced apart from each other; a first insulating layer disposed on the substrate so as to cover at least a portion of the first electrode and the second electrode; and at least one first light emitting element disposed between the first electrode and the second electrode, on the first insulating layer. The first insulating layer comprises: a first sub-insulating layer comprising a first portion including a hydrophilic material and a second portion which is a region of the first insulating layer except for the first portion and includes a hydrophobic material; and a second sub-insulating layer disposed below the first sub-insulating layer, and at least a portion of the at least one first light emitting element is disposed on the first portion.

公开(公告)号：US20220173274A1

公开(公告)日：2022-06-02

申请号：US17501466

申请日：2021-10-14

Applicant: Samsung Display Co., LTD.

Inventor： Jong Won LEE ,  Je Won YOO ,  Hyun Min CHO ,  Basrur VEIDHES ,  Myeong Hee KIM ,  Yong Sub SHIM

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/40

Abstract: A display device includes a first reflective electrode disposed on a surface of a substrate, a second reflective electrode spaced apart from the first reflective electrode and disposed on the surface of the substrate, and a light emitting element disposed between the first reflective electrode and the second reflective electrode. The first reflective electrode includes first surface irregularities disposed on a top surface of the first reflective electrode. The second reflective electrode includes second surface irregularities disposed on a top surface of the second reflective electrode.

公开(公告)号：US20220140186A1

公开(公告)日：2022-05-05

申请号：US17310745

申请日：2019-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Hong MIN ,  Dae Hyun KIM ,  Dong Uk KIM ,  Hyun Min CHO ,  Se Young KIM ,  Seung A LEE ,  Hyung Rae CHA

IPC: H01L33/24 ,  H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A light emitting element may include an emission stacked pattern including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer that are stacked in a longitudinal direction of the emission stacked pattern. The active layer may include a first surface that is in contact with the first conductive semiconductor layer in the longitudinal direction of the emission stacked pattern, and a second surface that is opposite the first surface and is in contact with the second conductive semiconductor layer. The first conductive semiconductor layer may include at least one n-type semiconductor layer, and the second conductive semiconductor layer may include at least one p-type semiconductor layer. Further, the first surface of the active layer may be located at a point corresponding to −20% to +20% of half of a total length of the emission stacked pattern in the longitudinal direction of the emission stacked pattern.

公开(公告)号：US20220123026A1

公开(公告)日：2022-04-21

申请号：US17422426

申请日：2019-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik OH ,  Yo Han LEE ,  Hyun Min CHO ,  Jong Hyuk KANG ,  Dae Hyun KIM

IPC: H01L27/12 ,  H01L25/16

Abstract: A display device may include a pixel disposed in a display area. The pixel may include: a first electrode extending in a first direction; a second electrode including a first electrode part spaced apart from the first electrode in a direction intersecting with the first direction and extending in the first direction, a second electrode part extending from the first electrode part in a second direction, and a third electrode part extending form the second electrode part in the first direction; a third electrode including at least one area spaced apart from the third electrode part in the direction intersecting with the first direction and extending in the first direction; a first light emitting element connected between the first electrode and the second electrode; and a second light emitting element connected between the second electrode and the third electrode.

公开(公告)号：US20220102585A1

公开(公告)日：2022-03-31

申请号：US17470383

申请日：2021-09-09

Applicant: Samsung Display Co., LTD.

Inventor： Jong Won LEE ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L27/15

Abstract: A display device comprises a substrate, a first electrode on the substrate and extending in a first direction, a second electrode on the substrate and extending in the first direction, the second electrode being spaced apart from the first electrode in a second direction, a first insulating layer on the first electrode and the second electrode, light-emitting elements on the first insulating layer, the light-emitting elements being disposed on the first electrode and the second electrode, a second insulating layer disposed on the light-emitting elements, a first contact electrode disposed on the first electrode and electrically contacting the light-emitting elements, and a second contact electrode disposed on the second electrode and electrically contacting the light-emitting elements. The second insulating layer comprises patterns that cover at least part of the light-emitting elements and are spaced apart from one another in the first direction.

公开(公告)号：US20220072864A1

公开(公告)日：2022-03-10

申请号：US17418048

申请日：2019-11-06

Applicant: Samsung Display Co., LTD.

Inventor： Han Su KIM ,  Eun A YANG ,  Jong Hyuk KANG ,  Hyun Min CHO

IPC: B41J2/175 ,  B41J2/125 ,  B41J2/195

Abstract: An inkjet printing device includes an ink reservoir that stores ink containing particles, an inkjet head part that receives the ink from the ink reservoir and ejects the ink onto a target substrate and a driver for rotating the ink reservoir.

公开(公告)号：US20220005991A1

公开(公告)日：2022-01-06

申请号：US17291398

申请日：2019-05-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min CHO ,  Jung Hong MIN ,  Dae Hyun KIM ,  Dong Uk KIM

IPC: H01L33/62 ,  H01L33/00 ,  H01L33/38 ,  H01L27/15 ,  H01L33/16

Abstract: A light emitting element structure may include at least one light emitting element which is disposed on a substrate and spaced apart from each other, and extends in a direction perpendicular to the substrate; an auxiliary layer which is disposed on the substrate, exposes at least a portion of the upper surface of the substrate, and surrounds the outer surface of the light emitting element; a current spreading layer which is disposed on the auxiliary layer and electrically contacts an end of the light emitting element; a first pad which is electrically connected to the end of the light emitting element, disposed on the current spreading layer, and does not to overlap the light emitting element; and a second pad which is electrically connected to another end of the light emitting element disposed on the upper surface of the exposed substrate and spaced apart from the auxiliary layer.

公开(公告)号：US20210376243A1

公开(公告)日：2021-12-02

申请号：US17255406

申请日：2018-12-21

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min CHO ,  Shin Il CHOI ,  Sang Gab KIM ,  Tae Sung KIM

IPC: H01L51/00 ,  H01L27/32

Abstract: A method of manufacturing an organic light-emitting display device is provided. The method includes: forming a lower electrode pattern on a substrate, which includes a transistor area and a capacitor area, to correspond to the transistor area and forming a buffer layer on the substrate including the lower electrode pattern; forming a thin-film transistor including an oxide semiconductor layer on the buffer layer; forming an interlayer insulating film on the thin-film transistor; forming a photoresist film pattern including first and second holes, which have different depths, on the interlayer insulating film; and forming a first contact hole, which exposes the lower electrode pattern, and second contact holes, which expose the oxide semiconductor layer, at the same time using the photoresist film pattern.

公开(公告)号：US20210366978A1

公开(公告)日：2021-11-25

申请号：US17395999

申请日：2021-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk KANG ,  Hyun Min CHO ,  Dae Hyun KIM ,  Joo Yeol LEE ,  Hyun Deok IM

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/40 ,  F21K9/68 ,  H01L25/075

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US20210280753A1

公开(公告)日：2021-09-09

申请号：US17258145

申请日：2018-09-20

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hyun KIM ,  Hyun Min CHO ,  Keun Kyu SONG ,  Je Won YOO ,  Bek Hyun LIM ,  Sung Chan JO

IPC: H01L33/54 ,  H01L25/16 ,  H01L33/62

Abstract: A display device and method of manufacturing a display device. The display device includes a first electrode, a second electrode facing the first electrode, a first insulating layer on the first electrode and the second electrode and between the first electrode and the second electrode, a light emitting element on the first insulating layer, a second insulating layer covering the light emitting element and exposing end portions of the light emitting element, a third insulating layer on the second insulating layer, a first contact electrode electrically connected to the first electrode, on the third insulating layer and in contact with a first end portion of the light emitting element exposed by the second insulating layer, and a second contact electrode electrically connected to the second electrode, on the third insulating layer and in contact with a second end portion of the light emitting element exposed by the second insulating layer.