公开(公告)号：US20190036077A1

公开(公告)日：2019-01-31

申请号：US16073814

申请日：2017-02-13

Applicant: Sharp Kabushiki Kaisha

Inventor： Takeshi HIRASE ,  Tetsuya OKAMOTO ,  Tohru SENOO ,  Tohru SONODA ,  Takashi OCHI ,  Mamoru ISHIDA

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56 ,  C23C16/40 ,  C23C16/455

Abstract: The present invention relates to a method including: an organic EL element formation step of forming an organic EL element (18) on an base substrate (10); and a sealing film formation step of forming a sealing film (20a) covering the organic EL element (18). The sealing film formation step includes an atomic layer deposition step of forming an inorganic barrier film (21) as the sealing film (20a) by atomic layer deposition and a molecular layer deposition step of forming an inorganic-organic composite barrier film (22) as the sealing film (20a) by molecular layer deposition.

公开(公告)号：US20180219172A1

公开(公告)日：2018-08-02

申请号：US15747185

申请日：2016-08-18

Applicant: Sharp Kabushiki Kaisha

Inventor： Tohru SENOO ,  Takeshi HIRASE ,  Tetsuya OKAMOTO ,  Takashi OCHI ,  Tohru SONODA ,  Mamoru ISHIDA

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

CPC classification number: H01L51/524 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/5092 ,  H01L51/5203 ,  H01L51/5256

Abstract: Disclosed is an organic EL display device including: a base substrate (10); an organic EL element (18) provided over the base substrate (10); and a sealing film (25a) covering the organic EL element (18). The sealing film (25a) includes a plurality of buffer layers (19a, 21a, 23a) each comprised of an inorganic film, and a buffer layer (20a, 22a) comprised of an organic film and provided between adjacent two of the plurality of buffer layers (19a, 21a, 23a). The buffer layer (20a, 22a) includes, in its peripheral edge portion surrounding the organic EL element, a flat thin portion (20t, 22t) which is thinner than the rest of the buffer layer (20a, 22a) above the organic EL element (18).

公开(公告)号：US20180153006A1

公开(公告)日：2018-05-31

申请号：US15579294

申请日：2016-06-07

Applicant: Sharp Kabushiki Kaisha

Inventor： Mamoru ISHIDA ,  Tetsuya OKAMOTO ,  Takeshi HIRASE ,  Tohru SENOO ,  Tohru SONODA

IPC: H05B33/04 ,  H05B33/10 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  G09F9/302 ,  G09F9/30

CPC classification number: H05B33/04 ,  G09F9/30 ,  G09F9/301 ,  G09F9/302 ,  H01L27/32 ,  H01L27/3244 ,  H01L51/50 ,  H01L51/5012 ,  H01L51/5203 ,  H01L51/5246 ,  H01L51/5253 ,  H05B33/10

Abstract: An EL display device in which the adhesion between a substrate and a sealing film is increased and in which the occurrence of cracks in the sealing film is reduced is provided. A lower inorganic film (31) has a multilayer structure including a first inorganic layer (34), which is in contact with the substrate and an EL element, and a second inorganic layer (35). The absolute value of the film stress of the first inorganic layer (34) is less than the absolute value of the film stress of the second inorganic layer (35), and the film thickness of the first inorganic layer (34) is less than the film thickness of the second inorganic layer (35).

公开(公告)号：US20180097046A1

公开(公告)日：2018-04-05

申请号：US15566225

申请日：2016-04-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Tetsuya OKAMOTO ,  Takeshi HIRASE ,  Tohru SENOO ,  Tohru SONODA ,  Mamoru ISHIDA

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

CPC classification number: H01L27/3244 ,  H01L51/0097 ,  H01L51/5016 ,  H01L51/524 ,  H01L51/5246 ,  H01L51/5253 ,  H05B33/04 ,  Y02E10/549

Abstract: Disclosed is an organic EL display device which includes: a first resin substrate 10a; a basecoat film 11a provided on the first resin substrate 10a; an organic EL element 18 provided over the basecoat film 11a, a first sealing film 19 covering the organic EL element 18; a second resin substrate 10b facing the first resin substrate 10a, and provided closer to the first sealing film 19 with an adhesive layer 21 interposed between the second resin substrate 10b and the first sealing film 19; and a second sealing film 23a provided outside the first sealing film 19 and enhancing adhesion between the basecoat film 11a and a stack including the first sealing film 19 and the adhesive layer 21.

公开(公告)号：US20180047940A1

公开(公告)日：2018-02-15

申请号：US15555146

申请日：2016-02-25

Applicant: Sharp Kabushiki Kaisha

Inventor： Tohru SONODA ,  Takeshi HIRASE ,  Tetsuya OKAMOTO ,  Tohru SENOO ,  Daichi NISHIKAWA ,  Mamoru ISHIDA

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56

CPC classification number: H01L51/5256 ,  H01L27/3244 ,  H01L51/0097 ,  H01L51/5246 ,  H01L51/56 ,  H05B33/04

Abstract: An organic EL display device including a TFT substrate (substrate) and an organic EL element (electroluminescent element) that is provided on the TFT substrate includes a sealing layer that seals the organic EL element. The sealing layer is composed of a laminated structure that is constituted by an organic film and first and second inorganic films. Recessed/protruding portions are provided on surfaces of the organic film and the first and second inorganic films.