公开(公告)号：US20230006163A1

公开(公告)日：2023-01-05

申请号：US17931285

申请日：2022-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeik KIM ,  Jaesik KIM ,  Yeonhwa LEE ,  Joongu LEE ,  Sehoon JEONG ,  Jiyoung CHOUNG

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: An organic light-emitting display apparatus and a manufacturing method thereof have improved process stability and reliability by reducing damage to the organic light-emitting display apparatus during a manufacturing process. The organic light-emitting display apparatus includes: a substrate, a plurality of pixel electrodes, a pixel defining film, a plurality of hole control layers respectively arranged on the pixel electrodes, a plurality of emission layers respectively arranged on the hole control layers, a plurality of buffer layers respectively arranged on the emission layers, each of the buffer layers having a highest occupied molecular orbital (HOMO) energy level greater than the HOMO energy level of each of the plurality of emission layers, and an opposite electrode integrally provided over the buffer layers.

公开(公告)号：US20200343321A1

公开(公告)日：2020-10-29

申请号：US16854773

申请日：2020-04-21

Applicant: Samsung Display Co., Ltd.

Inventor： Jaesik KIM ,  Joongu LEE ,  Jaeik KIM ,  Yeonhwa LEE ,  Chanho MOON ,  Sehoon JEONG ,  Jiyoung CHOUNG

IPC: H01L27/32 ,  H01L51/44 ,  H01L51/56

Abstract: A display apparatus includes: a first substrate and a display unit. The display unit includes a display region and a transmissive region. The display unit further includes: an auxiliary layer disposed in correspondence with the transmissive region; and a second electrode disposed in correspondence with the display region and at least a portion of the transmissive region. The auxiliary layer includes a first material, the second electrode includes a second material, and the first material and the second material each satisfy Equation 1 below: ST2−ST1>0 mJ/m2, wherein, in Equation 1, ST1 is a surface energy of the first material at 25° C., and ST2 is a surface energy of the second material at 25° C.

公开(公告)号：US20190326535A1

公开(公告)日：2019-10-24

申请号：US16363813

申请日：2019-03-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jaeik KIM ,  Jaesik KIM ,  Yeonhwa LEE ,  Joongu LEE ,  Sehoon JEONG ,  Jiyoung CHOUNG

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An organic light-emitting display apparatus and a manufacturing method thereof have improved process stability and reliability by reducing damage to the organic light-emitting display apparatus during a manufacturing process. The organic light-emitting display apparatus includes: a substrate, a plurality of pixel electrodes, a pixel defining film, a plurality of hole control layers respectively arranged on the pixel electrodes, a plurality of emission layers respectively arranged on the hole control layers, a plurality of buffer layers respectively arranged on the emission layers, each of the buffer layers having a highest occupied molecular orbital (HOMO) energy level greater than the HOMO energy level of each of the plurality of emission layers, and an opposite electrode integrally provided over the buffer layers.

公开(公告)号：US20220209164A1

公开(公告)日：2022-06-30

申请号：US17700026

申请日：2022-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yeonhwa LEE ,  Jaesik KIM ,  Jaeik KIM ,  Joongu LEE ,  Sehoon JEONG ,  Jiyoung CHOUNG

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes: a circuit element layer comprising a transistor; a display element layer comprising a first electrode connected to the transistor, a second electrode facing the first electrode, an organic pattern between the first electrode and the second electrode, a pixel defining layer having an opening exposing the first electrode, an auxiliary electrode spaced apart from the opening to cover a portion of the pixel defining layer and connected to the second electrode, a first protection pattern covering the second electrode, and a second protection pattern covering the first protection pattern; and an encapsulation layer covering the display element layer, wherein the first protection pattern and the second protection pattern have stress in directions different from each other.

公开(公告)号：US20210202874A1

公开(公告)日：2021-07-01

申请号：US17197367

申请日：2021-03-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Joongu LEE ,  Jaesik KIM ,  Jaeik KIM ,  Yeonhwa LEE ,  Sehoon JEONG

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/56 ,  H01L51/52

Abstract: An organic light-emitting display device includes: a substrate; a pixel electrode on the substrate; an auxiliary electrode spaced apart from the pixel electrode; a first insulating film between the pixel electrode and the auxiliary electrode and covering an end of the pixel electrode and an end of the auxiliary electrode; an intermediate layer on the pixel electrode and including an emission layer; an opposite electrode covering the intermediate layer and contacting the auxiliary electrode; and a passivation layer covering the opposite electrode.

公开(公告)号：US20200328378A1

公开(公告)日：2020-10-15

申请号：US16847349

申请日：2020-04-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jaesik KIM ,  Jaeik KIM ,  Yeonhwa LEE ,  Joongu LEE ,  Sehoon JEONG

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

Abstract: An organic light-emitting display apparatus includes: a substrate; first and second pixel electrodes on the substrate and spaced from each other; an insulating layer between the first and second pixel electrodes, the insulating layer covering ends of the first and second pixel electrodes, and having a step height difference; an auxiliary electrode on the insulating layer; first and second intermediate layers on the first and second pixel electrodes, the first and second intermediate layers being spaced from each other, and including first and second light-emitting layers, respectively; first and second opposite electrodes on the first and second intermediate layers, the first and second opposite electrodes being spaced from each other, and in contact with the auxiliary electrode; and first and second passivation layers on the first and second opposite electrodes, the first and second passivation layers being spaced from each other, and covering the first and second opposite electrodes, respectively.

公开(公告)号：US20180277612A1

公开(公告)日：2018-09-27

申请号：US15831829

申请日：2017-12-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaesik KIM ,  Yeonhwa LEE ,  Joongu LEE ,  Sehoon JEONG

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00

CPC classification number: H01L27/3248 ,  H01L27/3211 ,  H01L51/004 ,  H01L51/0094 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323

Abstract: A method of manufacturing an organic light-emitting display device includes forming pixel electrodes on a substrate, forming a first protective layer with a first exposure portion that exposes a first pixel electrode of the pixel electrodes, forming on the first pixel electrode a first intermediate layer and a first blocking layer covering the first intermediate layer, removing the first protective layer, forming a second protective with a second exposure portion that exposes a second pixel electrode of the pixel electrodes, forming on the first pixel electrode a second intermediate layer and a second blocking layer covering the second intermediate layer, removing the second protective layer, forming a third protective with a third exposure portion that exposes a third pixel electrode of the pixel electrodes, and forming a third intermediate layer on the third pixel electrode, wherein each of the first and second blocking layers includes a self-assembled monolayer.

公开(公告)号：US20180261656A1

公开(公告)日：2018-09-13

申请号：US15907430

申请日：2018-02-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaesik KIM ,  Yeonhwa LEE ,  Joongu LEE ,  Sehoon JEONG

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L27/3246 ,  H01L51/0016 ,  H01L51/0023 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/305 ,  H01L2251/308

Abstract: An organic light-emitting display apparatus including a substrate, a first first electrode on the substrate, a first organic functional layer on the first first electrode, the first organic functional layer including a first emission layer, a first second electrode on the first organic functional layer, a second first electrode on the substrate, the second first electrode being spaced apart from the first first electrode, a second organic functional layer on the second first electrode, the second organic functional layer including a second emission layer, a second second electrode on the second organic functional layer, and a self-assembled layer between the first organic functional layer and the second organic functional layer, the self-assembled layer containing fluorine.