公开(公告)号：US20220199863A1

公开(公告)日：2022-06-23

申请号：US17513302

申请日：2021-10-28

Applicant: Samsung Display Co., LTD.

Inventor： Se Hun KIM ,  Chang Hee LEE ,  Yun Hyuk KO ,  Jun Bo SIM ,  Jae Kook HA ,  Dong Uk KIM ,  In Pyo KIM ,  Je Won YOO ,  Hyun Min CHO ,  Chan Woo JOO ,  Na Mi HONG

IPC: H01L33/44 ,  H01L27/15 ,  H01L33/00 ,  H01L33/24

Abstract: A method for manufacturing a light emitting element includes forming a first semiconductor layer on a substrate, the first semiconductor layer including a semiconductor of a first type; forming an active layer on the first semiconductor layer; forming a second semiconductor layer on the active layer, the second semiconductor layer including a semiconductor of a second type different from the first type; performing an etching process of removing at least a portion of each of the first semiconductor layer, the active layer, and the second semiconductor layer in a direction toward the first semiconductor layer from the second semiconductor layer; and forming a first insulating layer to surround an outer surface of the active layer. The first insulating layer is formed by a wet process.

公开(公告)号：US20220093828A1

公开(公告)日：2022-03-24

申请号：US17297950

申请日：2019-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Oh KWAG ,  Hyun Deok IM ,  Keun Kyu SONG ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L27/15

Abstract: A display device is provided. The display device comprises: a first electrode and a second electrode spaced apart from and arranged to face the first electrode; a first insulating layer arranged to cover at least a partial region of the first and second electrodes; a shielding electrode layer which is arranged on the first insulating layer and which does not overlap at least a portion of the first and second electrodes; and at least one light-emitting element arranged between the first and second electrodes so as to be spaced apart from the shielding electrode layer, wherein the at least one light-emitting element can be arranged in a region in which the shielding electrode layer does not overlap the first and second electrodes.

公开(公告)号：US20220037568A1

公开(公告)日：2022-02-03

申请号：US17297326

申请日：2019-08-23

Applicant: Samsung Display Co., LTD.

Inventor： Jin Oh KWAG ,  Dae Hyun KIM ,  Keun Kyu SONG ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L33/58 ,  H01L33/38 ,  H01L27/15 ,  H01L33/50

Abstract: A display device includes a first electrode and a second electrode that are spaced apart from and facing each other; a light-blocking layer disposed above the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode. The light-blocking layer includes a light-blocking portion absorbing light and an opening pattern. The light-blocking portion includes an area partially overlapping the first electrode and the second electrode. The at least one opening pattern exposes portions of the first and second electrodes facing each other and at least a portion of an area between the first and second electrodes facing each other. The at least one light-emitting element overlaps the at least one opening pattern.

公开(公告)号：US20220013693A1

公开(公告)日：2022-01-13

申请号：US17290682

申请日：2019-05-27

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L33/44 ,  H01L27/15 ,  H01L33/00 ,  H01L33/24

Abstract: Provided are a light-emitting diode structure and a light-emitting diode manufacturing method. The light-emitting diode manufacturing method comprises the operations of:
preparing a lower substrate, which includes a substrate and a separation layer formed on the substrate, and preparing at least one semiconductor rod, which is formed on the separation layer, forming a rod structure, which includes a rod protecting layer formed on the separation layer to surround the at least one semiconductor rod and an auxiliary layer formed on at least part of the rod protecting layer and separating the rod structure from the lower substrate by removing the separation layer, and separating the at least one semiconductor rod from the rod structure.

公开(公告)号：US20210399181A9

公开(公告)日：2021-12-23

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：US20210351171A1

公开(公告)日：2021-11-11

申请号：US17278114

申请日：2019-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Je Won YOO ,  Dae Hyun KIM ,  Bek Hyun LIM ,  Myeong Hee KIM ,  Chang Il TAE ,  Hyun Min CHO ,  Keun Kyu SONG ,  Jin Oh KWAG

IPC: H01L25/16 ,  H01L33/54 ,  H01L33/44 ,  H01L23/00

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels disposed on the display area, and each including sub-pixels, each sub-pixel including a pixel circuit layer, and a display element layer including a light emitting element. The display element layer includes first and second electrodes spaced apart from each other; a first insulating layer disposed between the pixel circuit layer and the light emitting element; and a second insulating layer disposed on the light emitting element and filling spaces between the first insulating layer and ends of the light emitting element. The light emitting element includes a first conductive semiconductor layer, an active layer enclosing at least one side of the first conductive semiconductor layer, a second conductive semiconductor layer enclosing the active layer, an electrode layer enclosing the second conductive semiconductor layer, and an insulating film covering the electrode layer.

公开(公告)号：US20210350746A1

公开(公告)日：2021-11-11

申请号：US17384556

申请日：2021-07-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min CHO ,  Sung Chul KIM ,  Dae Hyun KIM ,  Hye Yong CHU ,  Jong Hyuk KANG ,  Keun Kyu SONG ,  Joo Yeol LEE ,  Bek Hyun LIM ,  Hyun Deok IM

IPC: G09G3/3233 ,  H01L33/20 ,  H01L33/00 ,  H01L33/44 ,  H01L33/52 ,  H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H05B45/40

Abstract: A display device includes: a substrate; a display element layer on one surface of the substrate and including at least one light emitting element emitting light; and a pixel circuit portion on the display element layer and including at least one transistor electrically connected to the light emitting element, wherein the display element layer includes: a first electrode on the substrate and electrically connected to one end of the light emitting element; a second electrode on the substrate and electrically connected to the other end of the light emitting element; and an insulation layer on the substrate including the second electrode, and having a first opening exposing a portion of the second electrode, and wherein the second electrode is electrically connected to the transistor through the first opening.

公开(公告)号：US20210327954A1

公开(公告)日：2021-10-21

申请号：US16338449

申请日：2018-09-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min CHO ,  Dae Hyun KIM ,  Jin Oh KWAG ,  Dong Hyun KIM ,  Keun Kyu SONG ,  Hyun Deok IM ,  Sung Chan JO

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

Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.

公开(公告)号：US20210320089A1

公开(公告)日：2021-10-14

申请号：US17276776

申请日：2019-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyuk KANG ,  Hae Yun CHOI ,  Han Su KIM ,  Eun A YANG ,  Hyun Min CHO ,  Keun Kyu SONG ,  Jin Oh KWAG

IPC: H01L25/075 ,  H01L33/00

Abstract: An apparatus for manufacturing a light emitting display device includes a substrate transfer stage including a plurality of support plates arranged at an interval in a first direction, each of the plurality of support plates extending in a second direction; and at least one electric-field application module disposed on at least one side of the substrate transfer stage. The at least one electric-field application module includes a probe head including at least one probe pin; and a driver connected to the probe head to move the probe head at least up and down.

公开(公告)号：US20210313494A1

公开(公告)日：2021-10-07

申请号：US17267282

申请日：2019-02-13

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L33/56 ,  H01L33/54

Abstract: A light emitting device includes a first semiconductor layer, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, a first insulating film surrounding an outer surface of at least one layer from among the first semiconductor layer, the second semiconductor layer, and the active layer; and a second insulating film surrounding an outer surface of the first insulating film.