公开(公告)号：US20220320381A1

公开(公告)日：2022-10-06

申请号：US17597300

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Je Won YOO ,  Dae Hyun KIM ,  Xin Xing LI ,  Bek Hyun LIM

IPC: H01L33/50 ,  H01L33/00 ,  H01L27/15 ,  H01L33/38 ,  H01L33/20

Abstract: A light emitting element includes: a first semiconductor layer and a second semiconductor layer; an active layer between the first semiconductor layer and the second semiconductor layer; an insulating film around side surfaces of at least the active layer; and a wavelength conversion material on at least a portion of the insulating film, wherein light emitted to the outside and light emitted from the active layer have different central wavelength bands.

公开(公告)号：US20220293835A1

公开(公告)日：2022-09-15

申请号：US17626268

申请日：2020-07-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Xinxing LI ,  Dae Hyun KIM ,  Hee Keun LEE

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/38

Abstract: A pixel may include first and second areas sectioned from each other in a first direction; 1-1-th to 4-1-th electrodes successively arranged in the first area in a second direction intersecting the first direction; 1-2-th to 4-2-th electrodes successively arranged in the second area in the second direction; light emitting elements disposed between two adjacent electrodes of the 1-1-th to 4-1-th electrodes of the first area; light emitting elements disposed between two adjacent electrodes of the 1-2-th to 4-2-th electrodes of the second area; a first conductive pattern disposed in the first area, and electrically connecting the 2-1-th and 3-1-th electrodes; a second conductive pattern disposed over the first and second areas, and electrically connecting the 4-1-th electrode of the first area with the 1-2-th electrode of the second area; and a third conductive pattern disposed in the second area and electrically connecting the 2-2-th and 3-2-th electrodes.

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：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：US20220005797A1

公开(公告)日：2022-01-06

申请号：US17364042

申请日：2021-06-30

Applicant: Samsung Display Co., LTD.

Inventor： An Na RYU ,  Jin Oh KWAG ,  Dae Hyun KIM

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/62

Abstract: A display device comprises a first substrate, a conductive layer including a first electrode on the first substrate, an interlayer insulating layer on the conductive layer, a via layer on the interlayer insulating layer and including a hole exposing a part of a top surface of the interlayer insulating layer, a second electrode spaced apart from the hole and on the via layer, light emitting elements inside the hole of the via layer, a first contact electrode electrically connected to the first electrode and a first end of the light emitting elements, and a second contact electrode on the via layer and electrically connected to a second end of the light emitting elements. At least a part of the light emitting elements are placed on an inner wall of the hole.

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.

公开(公告)号：US20210273142A1

公开(公告)日：2021-09-02

申请号：US17255987

申请日：2018-09-21

Applicant: Samsung Display Co., LTD.

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

IPC: H01L33/50 ,  H01L25/075 ,  H01L27/12 ,  H01L33/58 ,  H01L33/62

Abstract: A display device comprises first and second pixels, a light-emitting layer, color conversion layers, and color filter layers, the light-emitting layer comprising first and second light-emitting elements in the first and second pixels, wherein the color conversion layers comprise first and second color conversion layers in the first and second pixels, the color filter layers comprise first and second color filter layers in the first and second pixels, the first and second light-emitting elements emit first light having a central wavelength range of a first wavelength, the first and second color conversion layers contain color conversion particles converting the first light into second light having a central wavelength range of a second wavelength longer than the first wavelength, the first color filter layer transmits the first light and blocks the second light, and the second color filter layer transmits the second light and blocks transmission of the first light.

公开(公告)号：US20210217739A1

公开(公告)日：2021-07-15

申请号：US17272825

申请日：2019-02-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Keun LEE ,  Tae Jin KONG ,  Dae Hyun KIM ,  Xinxing LI ,  Chang Il TAE

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/40 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62 ,  H01L33/24

Abstract: A display device includes a first substrate including a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area; a first sub-pixel including a first light emitting element disposed in the first sub-pixel area; a second sub-pixel including a second light emitting element disposed in the second sub-pixel area; a third sub-pixel including a third light emitting element disposed in the third sub-pixel area; and a bank disposed between the first sub-pixel, the second sub-pixel, and the third sub-pixel and enclosing an emission area of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. The bank includes a color bank including a color filter material that blocks light of colors emitted from the first light emitting element, the second light emitting element, and the third light emitting element.