公开(公告)号：US20200286964A1

公开(公告)日：2020-09-10

申请号：US16714217

申请日：2019-12-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： WONJE CHO

IPC: H01L27/32

Abstract: An organic light emitting diode display device includes a lower substrate, a plurality of lower electrodes, a light emitting layer, an upper electrode, and a first functional module. The lower substrate includes a first module region that includes sub-pixel regions and transmissive regions, and a display region that surrounds the first module region and includes the sub-pixel regions. The lower electrodes are respectively disposed on the lower substrate in the sub-pixel regions in the first module region. The light emitting layer is disposed on the lower electrodes, and includes a first opening between two adjacent lower electrodes. The upper electrode is disposed on the light emitting layer, and includes a second opening that overlaps the first opening. The first functional module is disposed on a bottom surface of the lower substrate in the first module region.

公开(公告)号：US20240301542A1

公开(公告)日：2024-09-12

申请号：US18402248

申请日：2024-01-02

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGKUK KIM ,  DUCKJUNG LEE ,  WONJE CHO

IPC: C23C14/04

CPC classification number: C23C14/042

Abstract: A method for manufacturing a mask assembly includes disposing a preliminary mask assembly including a frame having a frame opening and an open sheet having a plurality of first openings and including a first portion and a second portion, welding a preliminary unit mask to the first portion of the open sheet after stretching the preliminary unit mask on the preliminary mask assembly, welding the preliminary unit mask to the second portion of the open sheet, forming a plurality of unit masks by emitting laser onto the preliminary unit mask overlapping the second portion of the open sheet, and forming, in the plurality of unit masks, a plurality of deposition openings overlapping the plurality of first openings by emitting laser. The first portion overlaps the frame, and the second portion extends from the first portion and is disposed between the plurality of first openings.

公开(公告)号：US20230374655A1

公开(公告)日：2023-11-23

申请号：US18125178

申请日：2023-03-23

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGKUK KIM ,  SEUNGYONG SONG ,  WONJE CHO ,  EUNBEE JO ,  KYU HWAN HWANG

IPC: C23C16/04

CPC classification number: C23C16/042 ,  H10K59/12

Abstract: A mask replacement method includes providing the mask assembly including a frame including an opening, a first mask disposed on the frame, and first welding portions overlapping the first mask in a plan view, removing the first mask from the frame, and forming a second mask and second welding portions overlapping the second mask in a plan view on the frame on which the first welding portions are disposed. The first welding portions may be spaced apart from the second mask, and the first welding portions and the second welding portions may be arranged in a direction.

公开(公告)号：US20220223436A1

公开(公告)日：2022-07-14

申请号：US17501374

申请日：2021-10-14

Applicant: Samsung Display Co., Ltd.

Inventor： WONJE CHO ,  DUCKJUNG LEE

IPC: H01L21/67 ,  H05K3/06 ,  H05K3/00

Abstract: An etching device includes a nozzle unit including at least one nozzle including an etching solution injection hole, an etching solution collection hole, and a sealing part. The etching solution injection hole is configured to provide an etching solution to an etching object, the etching solution collection hole is configured to collect the etching solution, and the sealing part surrounds the etching solution injection hole and the etching solution collection hole to prevent the etching solution from leakage.