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.

公开(公告)号：US20220352134A1

公开(公告)日：2022-11-03

申请号：US17731821

申请日：2022-04-28

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Il JEON ,  Byung Choon YANG ,  Tae Hee LEE ,  Joo Woan CHO ,  Byeong Hwa CHOI ,  Jin Woo CHOI

IPC: H01L25/16 ,  H01L33/40 ,  H01L27/12 ,  H01L23/00

Abstract: A display device includes a base layer; a pixel circuit layer disposed on the base layer, the pixel circuit layer including a first transistor; and an insulating layer overlapping the first transistor; a first electrode disposed on the pixel circuit layer, the first electrode electrically connected to the first transistor via a contact hole of the insulating layer; a cover layer disposed on the first electrode, the cover layer overlapping at least a portion of the first electrode; a light emitting element including a first end and a second end electrically connected to the first electrode; a second electrode disposed on the light emitting element, the second electrode electrically connected to the second end of the light emitting element; and a third electrode disposed on the cover layer, the third electrode electrically contacting at least a portion of the first electrode.

公开(公告)号：US20220352131A1

公开(公告)日：2022-11-03

申请号：US17553680

申请日：2021-12-16

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo CHOI ,  Byung Choon YANG ,  Min Woo KIM ,  Sung Kook PARK ,  Hyung Il JEON

IPC: H01L25/16 ,  H01L33/20 ,  H01L33/50 ,  H01L33/00

Abstract: A display device may include a plurality of light emitting elements on a substrate and arranged in a matrix form along a first arrangement direction and a second arrangement direction crossing the first arrangement direction, and a first sub pixel area and a second sub pixel area each overlapping at least a portion of the plurality of light emitting elements, spaced from each other in a first direction, and extending in a second direction crossing the first direction. The second direction and the first arrangement direction may be non-parallel to each other.

公开(公告)号：US20220328436A1

公开(公告)日：2022-10-13

申请号：US17697720

申请日：2022-03-17

Applicant: Samsung Display Co., LTD.

Inventor： Dae Ho SONG ,  Min Woo KIM ,  Sung Kook PARK ,  Byung Choon YANG ,  So Yeon YOON ,  Hyung Il JEON ,  Joo Woan CHO ,  Jin Woo CHOI

IPC: H01L23/00 ,  H01L25/16 ,  H01L27/12

Abstract: A display device may include: a substrate including a display area and a non-display area; and a pixel located in the display area, the pixel having an emission area and a pixel circuit area. The pixel may include: at least one transistor located in the pixel circuit area; a first pad electrode and a second pad electrode spaced from each other and located in the emission area, the first pad electrode and the second pad electrode being electrically connected to the at least one transistor; a first through hole penetrating one region of the first pad electrode; a second through hole penetrating one region of the second pad electrode; and a light emitting element located in the emission area, the light emitting element being electrically connected to the first pad electrode and the second pad electrode.

公开(公告)号：US20220199725A1

公开(公告)日：2022-06-23

申请号：US17521546

申请日：2021-11-08

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  Byung Choon YANG ,  Hyung Il JEON

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: The display device includes a substrate including a plurality of pixel areas; and a pixel in each of the plurality of pixel areas. The pixel may include a pixel circuit layer on the substrate and including at least one transistor; a first electrode on the pixel circuit layer and electrically connected to the transistor; a plurality of light emitting elements on the first electrode and electrically connected to the first electrode; a second electrode on the plurality of light emitting elements; and a light blocking pattern on the second electrode and including a plurality of openings corresponding to each of the plurality of light emitting elements. Here, each of the plurality of pixel areas may include an emission area corresponding to each of the plurality of openings and a non-emission area excluding the emission area.

公开(公告)号：US20220165921A1

公开(公告)日：2022-05-26

申请号：US17520118

申请日：2021-11-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  Byung Choon YANG ,  Hyung Il JEON

IPC: H01L33/54 ,  H01L33/62 ,  H01L33/50 ,  H01L33/10 ,  H01L33/00

Abstract: A display device includes a substrate, and a display element part on the substrate, and including a light emitting element configured to emit light in a display direction, and a bank pattern that protrudes in the display direction, wherein the bank pattern and the light emitting element include a same material.

公开(公告)号：US20250143083A1

公开(公告)日：2025-05-01

申请号：US19009843

申请日：2025-01-03

Applicant: Samsung Display Co., Ltd

Inventor： Jin Woo CHOI ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  Byung Choon YANG ,  Hyung II JEON

IPC: H10K59/121 ,  H10K50/856 ,  H10K50/86 ,  H10K59/12 ,  H10K71/00

Abstract: The display device includes a substrate including a plurality of pixel areas; and a pixel in each of the plurality of pixel areas. The pixel may include a pixel circuit layer on the substrate and including at least one transistor; a first electrode on the pixel circuit layer and electrically connected to the transistor; a plurality of light emitting elements on the first electrode and electrically connected to the first electrode; a second electrode on the plurality of light emitting elements; and a light blocking pattern on the second electrode and including a plurality of openings corresponding to each of the plurality of light emitting elements. Here, each of the plurality of pixel areas may include an emission area corresponding to each of the plurality of openings and a non-emission area excluding the emission area.

公开(公告)号：US20250072173A1

公开(公告)日：2025-02-27

申请号：US18942371

申请日：2024-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Il JEON ,  Min Woo KIM ,  Sung Kook PARK ,  Dae Ho SONG ,  Byung Choon YANG ,  Jin Woo CHOI

IPC: H01L33/42 ,  H01L25/075 ,  H01L33/40 ,  H01L33/58

Abstract: A display device includes: a substrate; a transparent electrode on one surface of the substrate; a reflective electrode on the transparent electrode; a transistor on the reflective electrode; and a light emitting element between the transparent electrode and the reflective electrode. The transistor overlaps the light emitting element.

公开(公告)号：US20250072171A1

公开(公告)日：2025-02-27

申请号：US18949120

申请日：2024-11-15

Applicant: Samsung Display Co., Ltd.

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

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

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.

公开(公告)号：US20250056935A1

公开(公告)日：2025-02-13

申请号：US18809918

申请日：2024-08-20

Applicant: Samsung Display Co., LTD.

Inventor： Joo Woan CHO ,  Jin Woo CHOI ,  Byung Choon YANG ,  Tae Hee LEE ,  Hae Yun CHOI

IPC: H01L33/50 ,  H01L33/10

Abstract: According to some embodiments of the present disclosure, there is provided a display device including a substrate, a light emitting element on the substrate and emitting first light, a wavelength conversion layer on the light emitting element and including wavelength conversion particles for converting the first light into second light, a first selective transmission film between the light emitting element and the wavelength conversion layer and reflecting the first light and the second light, which are incident from the wavelength conversion layer, and a second selective transmission film on the wavelength conversion layer and reflecting the first light incident from the wavelength conversion layer and transmitting the second light.