公开(公告)号：US09653704B2

公开(公告)日：2017-05-16

申请号：US15025416

申请日：2015-05-11

Applicant: JOLED INC.

Inventor： Keiji Horikawa

IPC: H01L51/52 ,  H01L27/32 ,  H05B33/04

CPC classification number: H01L51/5259 ,  H01L27/3244 ,  H01L51/5246 ,  H05B33/04

Abstract: A display panel includes: a first substrate; a display unit disposed on a principal surface of the first substrate; a first sealing wall disposed in a frame shape on the principal surface of the first substrate, along an outer periphery of the first substrate; a second sealing wall disposed in a frame shape on the principal surface of the first substrate, along an outer periphery of the display unit; a desiccant material filled between the first sealing wall and the second sealing wall; a protective material filled on the display unit, in a region surrounded by the second sealing wall; and a second substrate. The second sealing wall covers at least a portion of a surface of the display unit opposite a surface of the display unit which is in contact with the first substrate.

公开(公告)号：US10998526B2

公开(公告)日：2021-05-04

申请号：US16122880

申请日：2018-09-06

Applicant: JOLED INC.

Inventor： Keiji Horikawa ,  Kenji Harada ,  Akifumi Okigawa

IPC: H01L51/52 ,  H01L51/56 ,  H01L51/50 ,  H01L51/00 ,  H01L27/32

Abstract: An organic electroluminescence (EL) display panel includes a substrate; a plurality of organic EL elements; and a sealing layer in this order. In the organic EL display panel, the sealing layer has a three-layered structure in the order of a first sealing layer, a second sealing layer, and a third sealing layer. In the organic EL display panel, the first sealing layer, the second sealing layer, and the third sealing layer each include amorphous silicon nitride. In the organic EL display panel, when composition of the first sealing layer, composition of the second sealing layer, and composition of the third sealing layer are each indicated as SiNx, a value of x in the composition of the second sealing layer is greater than both a value of x in the composition of the first sealing layer and a value of x in the composition of the third sealing layer.

公开(公告)号：US09887387B2

公开(公告)日：2018-02-06

申请号：US15473943

申请日：2017-03-30

Applicant: JOLED INC.

Inventor： Keiji Horikawa

IPC: H01L23/053 ,  H01L21/461 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56

CPC classification number: H01L51/5256 ,  H01L27/3244 ,  H01L27/3276 ,  H01L51/524 ,  H01L51/56

Abstract: An organic EL display panel including: a substrate; display elements over the substrate; a first sealing layer over the display elements; a buffer layer covering the first sealing layer; and a second sealing layer covering the buffer layer. The first sealing layer, the buffer layer, and the second sealing layer are each made of a silicon nitride film, and a peak amount of ammonia gas desorbing from the silicon nitride film of the buffer layer within a predetermined temperature range is greater than one hundred times and smaller than one thousand times a peak amount of ammonia gas desorbing from each of the silicon nitride film of the first sealing layer and the silicon nitride film of the second sealing layer within the predetermined temperature range.

公开(公告)号：US10396308B2

公开(公告)日：2019-08-27

申请号：US16006908

申请日：2018-06-13

Applicant: JOLED INC.

Inventor： Akifumi Okigawa ,  Kenji Harada ,  Keiji Horikawa ,  Masaya Terai

IPC: H01L35/24 ,  H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  H01L51/00

Abstract: An organic electroluminescence (EL) display panel includes a multi-layered wiring laminate disposed on a substrate and including insulating layers and wiring disposed on at least one of the insulating layers and extending to a vicinity of an outer periphery of the wiring laminate; an organic EL element array disposed on the wiring laminate; a first inorganic insulating layer disposed on the array and extending outside the outer periphery of the wiring laminate in plan view; a resin sealing layer disposed on the first inorganic insulating layer, covering the array in plan view, and having an outer periphery above a resin insulating layer that is a highest layer among the insulating layers; a second inorganic insulating layer disposed on the resin sealing layer, extending outside the outer periphery of the resin sealing layer in plan view, and being in contact with the first inorganic insulating layer in a thickness direction.

公开(公告)号：US10347865B2

公开(公告)日：2019-07-09

申请号：US15987938

申请日：2018-05-24

Applicant: JOLED INC.

Inventor： Kenji Harada ,  Yasuharu Shinokawa ,  Akifumi Okigawa ,  Keiji Horikawa

IPC: H01L29/04 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  G09G3/3225 ,  H01L51/56

Abstract: An organic electroluminescence (EL) display panel includes a multi-layered wiring laminate including: a first part on which an organic EL element array is disposed and in which a first portion of a resin insulating layer is present, the resin insulating layer being a highest layer among insulating layers; a second part surrounding the first part in plan view and in which a second portion of the resin insulating layer having a bank-shape is present; and a third part disposed between the first part and the second part in plan view and having a shape of a circumferential groove in which the resin insulating layer is not present. In the third part, wiring is on an inorganic insulating layer that is lower by a layer than the resin insulating layer. The wiring on the inorganic insulating layer is spaced away from the second portion of the resin insulating layer.