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：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：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.