公开(公告)号：US20230060443A1

公开(公告)日：2023-03-02

申请号：US17869088

申请日：2022-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Il JEON ,  Sung Kook PARK ,  Sung Eun BAEK ,  Ki Seong SEO ,  So Yeon YOON ,  Jin Woo CHOI

IPC: H01L25/16 ,  H01L33/54

Abstract: A display device includes a first electrode disposed on a substrate. A light blocking layer is disposed on the substrate, the light blocking layer includes a recessed portion recessed toward the first electrode. Holes exposing the first electrode are formed in the recessed portion of the light blocking layer. Light emitting elements are disposed in the holes, each of the light emitting elements including a first end electrically contacting the first electrode. A second electrode is disposed on the light blocking layer, the second electrode electrically contacts a second end of each of the light emitting elements. A light conversion pattern is disposed in the recessed portion of the light blocking layer.

公开(公告)号：US20220352411A1

公开(公告)日：2022-11-03

申请号：US17553653

申请日：2021-12-16

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  So Yeon YOON ,  Joo Woan CHO

IPC: H01L33/00 ,  H01L25/075

Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.

公开(公告)号：US20230411577A1

公开(公告)日：2023-12-21

申请号：US18114189

申请日：2023-02-24

Applicant: Samsung Display Co., LTD.

Inventor： Ju Won YOON ,  Jung Hun NOH ,  Ki Seong SEO ,  Jae Gwang UM ,  So Yeon YOON ,  Sang Hyun LEE ,  Hyung Il JEON

IPC: H01L33/62 ,  H01L33/20 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/38

CPC classification number: H01L33/62 ,  H01L33/20 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/1214 ,  H01L33/38 ,  H01L2933/0066 ,  H01L2933/0016

Abstract: The display device includes a substrate, a thin-film transistor on the substrate and including a first electrode, a second electrode and a semiconductor layer, a first insulating layer on the thin-film transistor, an organic layer on the first insulating layer, at least one light-emitting element on the organic layer, a pixel electrode on the organic layer and in contact with a side surface of the at least one light-emitting element, a planarization layer on the side surface of the at least one light-emitting element and a common electrode on the at least one light-emitting element and the planarization layer.

公开(公告)号：US20220352132A1

公开(公告)日：2022-11-03

申请号：US17691350

申请日：2022-03-10

Applicant: Samsung Display Co., LTD.

Inventor： Ki Seong SEO ,  Soo Chul KIM ,  Dae Ho SONG ,  So Yeon YOON

IPC: H01L25/16 ,  H01L33/60 ,  H01L27/12

Abstract: A display device includes a first electrode is disposed on a substrate, a pixel defining layer disposed on the substrate in a non-emission area and defining an emission area, a reflection pattern protrudes upward from the first electrode in the emission area and forming a concave part on the first electrode, a light emitting element disposed in the concave part and electrically connected to the first electrode, and a second electrode disposed on the light emitting element and electrically connected to the light emitting element. The reflection pattern does not overlap the pixel defining layer in a plan view.

公开(公告)号：US20230046091A1

公开(公告)日：2023-02-16

申请号：US17718521

申请日：2022-04-12

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Sung Eun BAEK ,  So Yeon YOON

IPC: H01L33/38 ,  H01L25/16 ,  H01L33/00

Abstract: A display device includes pixel electrodes disposed on a substrate, at least one light-emitting element disposed on each of the pixel electrodes, a planarization layer disposed on the pixel electrodes and filling a space between the at least one light-emitting element, and a common electrode disposed on the planarization layer and the at least one light-emitting element. Each of the light-emitting elements is arranged perpendicular to a top face of each of the pixel electrodes, at least one of the pixel electrodes includes a protrusion protruding toward an adjacent one of the pixel electrodes, and the protrusion overlaps the light-emitting element in a plan view.

公开(公告)号：US20220352428A1

公开(公告)日：2022-11-03

申请号：US17660591

申请日：2022-04-25

Applicant: Samsung Display Co., LTD.

Inventor： Hae Yun CHOI ,  Jin Taek PARK ,  Ki Seong SEO ,  Dae Ho SONG ,  So Young YEO ,  So Yeon YOON ,  Byeong Hwa CHOI

IPC: H01L33/50 ,  H01L33/60

Abstract: A display device includes a substrate, a partition wall on the substrate, a light-emitting element in an emission area partitioned by the partition wall on the substrate, and extending in a thickness direction of the substrate, a wavelength conversion layer over the light-emitting element in the emission area, and including a base resin, and a scatterer dispersed in the base resin and that converts a wavelength of light emitted from the light-emitting element, a light-blocking member on the partition wall, and at least one optical pattern on the wavelength conversion layer in the emission area, and having an upwardly protruding shape.

公开(公告)号：US20220352248A1

公开(公告)日：2022-11-03

申请号：US17684782

申请日：2022-03-02

Applicant: Samsung Display Co., LTD.

Inventor： Soo Chul KIM ,  Jin Taek PARK ,  Ki Seong SEO ,  Dae Ho SONG ,  So Yeon YOON ,  Jin Woo CHOI

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L33/62 ,  H01L33/00

Abstract: A display device includes bank patterns disposed on a substrate, light emitting elements disposed between side surfaces of the bank patterns on the substrate, and a color filter layer disposed between the side surfaces of the bank patterns and disposed on the light emitting elements. The light emitting elements and the bank patterns include a same material.

公开(公告)号：US20220352241A1

公开(公告)日：2022-11-03

申请号：US17565056

申请日：2021-12-29

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Il JEON ,  Sung Kook PARK ,  Ki Seong SEO ,  Dae Ho SONG ,  So Yeon YOON ,  Ok Yi LEE ,  Jin Woo CHOI

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

Abstract: A display device includes a substrate, pixel electrodes on the substrate, light emitting elements on corresponding ones of the pixel electrodes, a first partition wall around sides of each of the light emitting elements, a common electrode on an upper surface of each of the light emitting elements, wavelength conversion layers on the common electrode, and a second partition wall around sides of each of the wavelength conversion layers. The first partition wall has conductivity.

公开(公告)号：US20240170605A1

公开(公告)日：2024-05-23

申请号：US18426333

申请日：2024-01-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  So Yeon YOON ,  Joo Woan CHO

IPC: H01L33/00 ,  H01L25/075

CPC classification number: H01L33/0095 ,  H01L25/0753 ,  H01L33/0093 ,  H01L2933/0016

Abstract: A manufacturing apparatus of a display device, includes: a first unit to transfer a plurality of light emitting elements on a growth substrate to a first film; a second unit to expand the first film; a third unit to retransfer the plurality of light emitting elements to a second film; a fourth unit to determine positions of the plurality of light emitting elements on the second film; a fifth unit to bin the light emitting elements on the second film, and determine an effective light source from among the light emitting elements; a sixth unit to form a plurality of pixels on a substrate, each pixel including a first bonding electrode; a seventh unit to remove the second film after transferring one light emitting element to the first bonding electrode of one pixel; and an eighth unit to form a second electrode on the one light emitting element.

公开(公告)号：US20230048544A1

公开(公告)日：2023-02-16

申请号：US17718869

申请日：2022-04-12

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo CHOI ,  Sung Kook PARK ,  Sung Eun BAEK ,  Byung Choon YANG ,  So Yeon YOON

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/42 ,  H01L27/15 ,  H01L33/00

Abstract: A display device includes a pixel electrode disposed on a substrate and including a reflective electrode layer and an upper electrode layer, a contact electrode disposed on the pixel electrode, light-emitting elements disposed on the contact electrode and disposed perpendicular to the pixel electrode, a planarization layer disposed on the pixel electrode, the planarization layer filling a space between the light-emitting elements, and a common electrode disposed on the planarization layer and the light-emitting elements, and a size of the contact electrode is equal to a size of each of the light-emitting elements in a plan view, and the upper electrode layer is disposed on the reflective electrode layer and is in a polycrystalline phase.