公开(公告)号：US20240215410A1

公开(公告)日：2024-06-27

申请号：US18355509

申请日：2023-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Hong Yeon LEE ,  Oh Jeong KWON ,  Seung Yeon JEONG ,  Hyeo Ji KANG ,  Woo Young KIM ,  Tae Ho KIM ,  Mi Hwa LEE

IPC: H10K59/80 ,  H10K59/40

CPC classification number: H10K59/8791 ,  H10K59/40

Abstract: A manufacturing method of a display device includes forming a light emitting element layer on a substrate, co-depositing bismuth (Bi) and ytterbium (Yb) on the light emitting element layer to form a first inorganic absorbing layer, and forming a reflection control layer on the first inorganic absorbing layer. In the co-depositing, a deposition temperature of bismuth (Bi) is in a range of about 500° C. to about 850° C., a deposition temperature of ytterbium (Yb) is in a range of about 300° C. to about 550° C., and an extinction coefficient of the first inorganic absorbing layer is less than or equal to about 3.

公开(公告)号：US20230189616A1

公开(公告)日：2023-06-15

申请号：US17875299

申请日：2022-07-27

Applicant: Samsung Display Co., LTD.

Inventor： Woo Young KIM ,  Hyeo Ji KANG ,  Oh Jeong KWON ,  Kyeong Jong KIM ,  Hong Yeon LEE ,  Sung Gyu JANG ,  Seung Yeon JEONG

IPC: H01L27/32 ,  H01L51/52 ,  G06F3/044

CPC classification number: H01L27/323 ,  H01L27/3246 ,  H01L51/5253 ,  H01L51/5284 ,  G06F3/0446

Abstract: A display device includes: a substrate; a first electrode on the substrate; a bank layer partially exposing a top surface of the first electrode; a light emitting layer disposed on the partially exposed top surface of the first electrode; a second electrode on the light emitting layer and the bank layer; an inorganic deposition layer on the second electrode; and a thin film encapsulation layer on the inorganic deposition layer, where at a wavelength of about 550 nm, an absorption coefficient (k) of the inorganic deposition layer is less than about 4.