公开(公告)号：US12218175B2

公开(公告)日：2025-02-04

申请号：US17282255

申请日：2019-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Woo Choi ,  Eun A Yang ,  Hyun Min Cho

IPC: H01L27/15 ,  H01L33/38

Abstract: A display deice includes a pair of first color sub-pixels arranged in a display area in a first direction, each of the pair of first color sub-pixels including at least one first color light emitting element, and a bank enclosing the pair of first color sub-pixels. The bank includes at least two areas having different widths in an area corresponding to each of the pair of first color sub-pixels.

公开(公告)号：US12100689B2

公开(公告)日：2024-09-24

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 ,  B05C13/02 ,  H01L21/67 ,  H01L33/00 ,  H05K13/02 ,  H05K13/04

CPC classification number: H01L25/0753 ,  B05C13/02 ,  H01L21/67259 ,  H05K13/027 ,  H05K13/04

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：US12046701B2

公开(公告)日：2024-07-23

申请号：US17347286

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Eun A Yang ,  Han Su Kim ,  Jong Hyuk Kang ,  Hee Keun Lee

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/44

CPC classification number: H01L33/38 ,  H01L27/156 ,  H01L33/44

Abstract: A display device includes a substrate and a pixel on the substrate. The pixel has an alignment area, and the alignment area has a first alignment area, a second alignment area spaced apart from the first alignment area in a first direction, and a non-alignment area extending around a periphery of the alignment area. The pixel includes: a first electrode and a second electrode extending in the first direction across the alignment area and being spaced apart from each other; a first bank in the non-alignment area and extending along a boundary of the pixel; an alignment control layer including a first alignment control pattern, the first alignment control pattern being spaced apart from the first bank in the non-alignment area between the first alignment area and the second alignment area; and a first light emitting element between the first electrode and the second electrode in the first alignment area.

公开(公告)号：US12191425B2

公开(公告)日：2025-01-07

申请号：US17631871

申请日：2020-07-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun A Yang ,  Jin Woo Choi ,  Hyun Min Cho

IPC: H01L33/62 ,  H01L25/075 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38 ,  H01L33/50

Abstract: A display device may include: a base layer including a plurality of islands, at least one first bridge configured to connect the islands in a first direction, and at least one second bridge configured to connect the islands in a second direction; and at least one pixel including a plurality of sub-pixels in the base layer. Each of the sub-pixels may include: a first electrode and a second electrode in one island of the islands and spaced from each other; a third electrode and a fourth electrode in one bridge of the at least one first bridge and the at least one second bridge and spaced from each other; at least one first light emitting element between the first electrode and the second electrode; and at least one second light emitting element between the third electrode and the fourth electrode.

公开(公告)号：US11780229B2

公开(公告)日：2023-10-10

申请号：US17474589

申请日：2021-09-14

Applicant: Samsung Display Co., LTD.

Inventor： Han Su Kim ,  Eun A Yang ,  Woong Bae Kim

IPC: B41J2/165 ,  B41J2/175 ,  H01L33/44 ,  H01L33/24 ,  H01L27/15

CPC classification number: B41J2/16523 ,  B41J2/17596 ,  H01L27/156 ,  H01L33/24 ,  H01L33/44

Abstract: An inkjet printing device and a method of addressing non-discharge. The inkjet printing device comprises a print head including nozzles that discharge an ink including light emitting elements, a dipping bath in which the print head is immersed and which includes a suction solution, and a suctioning part which is connected to the print head and suctions the suction solution along with the ink remaining in the print head unit.

公开(公告)号：US12288833B2

公开(公告)日：2025-04-29

申请号：US17608851

申请日：2020-03-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun A Yang ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Hyun Min Cho

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

Abstract: A display device includes a substrate including a display area and a non-display area; and at least one pixel provided in the display area, and including a pixel circuit layer. The display element layer includes at least one transistor, and a display element layer including at least one light emitting element emitting light, and a first electrode and a second electrode spaced apart from each other, disposed on the substrate, and each extending in a first direction, and the at least one light emitting element is electrically connected to each of the first and the second electrodes. The first electrode has at least two widths in an extension direction of the first electrode. The second electrode has at least two widths in an extension direction of the second electrode.

公开(公告)号：US12100784B2

公开(公告)日：2024-09-24

申请号：US17610062

申请日：2020-03-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Yun Choi ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Jae Hoon Jung ,  Han Su Kim ,  Eun A Yang ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/00 ,  H01L33/50 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/005 ,  H01L33/505 ,  H01L33/62 ,  H01L2933/0016

Abstract: A pixel includes a first bank pattern and a second bank pattern disposed on a base layer; a first electrode and a second electrode disposed on the first bank pattern and the second bank pattern, and spaced apart from each other; a light emitting element disposed between the first electrode and the second electrode, and including a first end electrically connected to the first electrode, and a second end electrically connected to the second electrode; and at least one insulating layer overlapping the light emitting element and at least one of the first electrode and the second electrode. The at least one insulating layer includes at least one of a first opening adjacent to the first end of the light emitting element and a second opening adjacent to the second end of the light emitting element.

公开(公告)号：US12283582B2

公开(公告)日：2025-04-22

申请号：US17742948

申请日：2022-05-12

Applicant: Samsung Display Co., LTD.

Inventor： Eun A Yang ,  Han Su Kim ,  Woong Bae Kim

IPC: H01L25/16 ,  H01L23/00 ,  H01L27/12 ,  H01L33/50

Abstract: A display device according to an embodiment includes a pixel and a bank. The pixel includes sub-pixels and an emission area including sub-emission areas corresponding to the sub-pixels. The bank surrounds the emission area. The pixel includes electrodes disposed in each of the sub-emission areas, at least one light emitting element disposed in each of the sub-emission areas, and bank patterns disposed under the electrodes, the bank patterns overlapping a portion of the electrodes. The bank patterns include a first bank pattern including a first valley, the first bank pattern being disposed in a first edge area of the emission area in a first direction. The bank patterns include a second bank pattern including a second valley, the second bank pattern being disposed in a second edge area of the emission area in the first direction.

公开(公告)号：US12272770B2

公开(公告)日：2025-04-08

申请号：US17783969

申请日：2020-11-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun A Yang ,  Han Su Kim ,  Jong Hyuk Kang ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/20 ,  H01L33/62

Abstract: A display device may include pixels disposed on a substrate. Each of the pixels may include a first electrode, a second electrode spaced apart from the first electrode and enclosing a perimeter of the first electrode, light emitting elements disposed between the first electrode and the second electrode, and each including a first end and a second end, a third electrode overlapping the first electrode and the first end of each of the light emitting elements in a plan view, and electrically contacting the first electrode and the first end of each of the light emitting elements, and a fourth electrode overlapping the second electrode and the second end of each of the light emitting elements in a plan view, and electrically contacting the second electrode and the second end of each of the light emitting elements. The light emitting elements may be radially disposed around the first electrode.

公开(公告)号：US12261247B2

公开(公告)日：2025-03-25

申请号：US17444614

申请日：2021-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Eun A Yang ,  Han Su Kim ,  Woong Bae Kim

IPC: H01L33/44 ,  H01L25/075 ,  H01L33/38

Abstract: A display device includes a base layer including a pixel area, and a pixel in the pixel area. The pixel includes a first area, and a second area enclosing the first area in a plan view, bank patterns at the pixel area, extending in a first direction, spaced from each other by a first distance in the first area, and spaced from each other by a third distance that is greater than the first distance in the second area, a first electrode and a second electrode at an area of the bank patterns, and spaced from each other by a second distance that is less than the first distance in the first area, a first insulating layer at a portion of the pixel area including the first area to cover the first electrode and the second electrode and removed from another portion of the pixel area including opposite edge portions.