公开(公告)号：US20220188536A1

公开(公告)日：2022-06-16

申请号：US17538901

申请日：2021-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： JOON-HWA BAE ,  BONGGU KANG ,  SEUNGBAE KANG ,  HEESUNG YANG ,  WOOJIN CHO ,  BYOUNG KWON CHOO

IPC: G06K9/00 ,  G06F1/16 ,  G06F3/041 ,  G06F21/32

Abstract: A method of manufacturing a detection sensor is disclosed. The method includes forming a biometric information sensing layer including a transistor on a base layer, forming an initial optical pattern layer on the biometric information sensing layer, patterning the initial optical pattern layer to form a plurality of transmissive portions spaced apart from each other and having a first zeta potential, coating a light blocking material to form an initial light blocking portion that covers a side surface and an upper surface of the transmissive portions and has a second zeta potential different from the first zeta potential, and polishing the initial light blocking portion such that the upper surface of the transmissive portions is exposed to form a light blocking portion. The initial light blocking portion is polished by the abrasive, which has the first zeta potential, using a pad.

公开(公告)号：US20230131912A1

公开(公告)日：2023-04-27

申请号：US17865501

申请日：2022-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： HEESUNG YANG ,  Joon-Hwa Bae ,  Sukyeong Shin ,  Woojin Cho

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

Abstract: A display panel includes an emission area and a non-emission area. A light emitting element includes a first electrode, an emission layer on the first electrode, and a second electrode on the emission layer. A pixel defining layer includes a first opening defined therein and exposing the first electrode. A first encapsulation layer is on the second electrode to overlap the light emitting element. The first encapsulation layer includes a first inorganic layer on the second electrode and a second inorganic layer on the first inorganic layer. A top surface of the second electrode overlaps the first opening and includes at least one first stepped portion. A bottom surface of the second inorganic layer directly contacts a top surface of the first inorganic layer. At least one of the top surface of the first inorganic layer or a top surface of the second inorganic layer is a flat surface.

公开(公告)号：US20220123090A1

公开(公告)日：2022-04-21

申请号：US17352403

申请日：2021-06-21

Applicant: Samsung Display Co., Ltd.

Inventor： HEESUNG YANG ,  SEUNGBAE KANG

IPC: H01L27/32 ,  H01L51/56

Abstract: A flexible display device includes an active layer, a source electrode disposed on the active layer, and connected to the active layer by a first contact hole, a drain electrode disposed on a same layer as the source electrode and spaced apart from the source electrode in a first direction, and connected to the active layer by a second contact hole, a first pixel electrode disposed on the drain electrode and including a lower surface electrically connected to the drain electrode while contacting an upper surface of the drain electrode and a via insulating layer disposed between the source electrode and the first pixel electrode, the via insulating layer covering an entirety of the source electrode. The drain electrode penetrates through the via insulating layer and is directly connected to the first pixel electrode.