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：US10854839B2

公开(公告)日：2020-12-01

申请号：US16254598

申请日：2019-01-23

Applicant: JOLED INC.

Inventor： Jun Yamaguchi ,  Kenji Harada ,  Shuhei Yada

IPC: H01L29/08 ,  H01L51/52 ,  H01L51/56 ,  H01L51/50 ,  H01L27/32

Abstract: An organic electroluminescence (EL) display panel includes a substrate; first electrodes spaced away from each other and arrayed in rows and columns above the substrate; light-emitting layers including organic light-emitting material and disposed above the first electrodes; a second electrode disposed above the light-emitting layers; a first protection layer including resin and disposed above the second electrode but not within an auxiliary region which, in plan view, extends in a column direction between ones of the first electrodes that are adjacent in a row direction across the substrate; a second protection layer including inorganic material and disposed above the first protection layer and the second electrode; and an auxiliary electrode layer extending in the column direction within the auxiliary region and electrically connecting to the second electrode through a contact opening in the first protection layer within the auxiliary region.

公开(公告)号：US10770683B2

公开(公告)日：2020-09-08

申请号：US16226635

申请日：2018-12-20

Applicant: JOLED INC.

Inventor： Kenji Harada

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  H01L27/12

Abstract: An organic electroluminescence (EL) display panel including: a substrate; an insulating resin layer extending from an image display region to a peripheral region; an organic EL element array within the image display region; a sealing layer extending from the image display region to the peripheral region; and a sealing reinforcement layer, laminated in this order. The sealing layer includes first, second, and third sealing layers laminated in this order from the substrate, the first and third sealing layers being made of an inorganic material and the second sealing layer being made of a resin. In the outer peripheral portion of the sealing layer, the first and third sealing layers are in direct contact with each other and cover an outer end of the insulating resin layer. An outer end of the sealing reinforcement layer is outside the outer end of the insulating resin layer in plan view.

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：US10388906B2

公开(公告)日：2019-08-20

申请号：US15928565

申请日：2018-03-22

Applicant: JOLED INC.

Inventor： Jun Yamaguchi ,  Kenji Harada ,  Masahiro Tanaka

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

Abstract: An organic electro-luminescence (EL) element includes a first electrode, a light emitting layer, and a second electrode layered in this order above a substrate. At least one of the first electrode and the second electrode is a light transmissive electrode. The light transmissive electrode includes a base metal layer and a silver thin film. The base metal layer is a metal layer including an alkali metal or an alkaline earth metal as a material. The silver thin film is silver or a silver alloy including silver as a main component, and is disposed on and in contact with the base metal layer.

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.

公开(公告)号：US11672140B2

公开(公告)日：2023-06-06

申请号：US17111535

申请日：2020-12-04

Applicant: JOLED Inc.

Inventor： Akifumi Okigawa ,  Kenji Harada

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

CPC classification number: H10K50/8426 ,  H10K50/844 ,  H10K50/8428 ,  H10K59/124 ,  H10K71/00 ,  H10K59/38 ,  H10K2102/351

Abstract: A self-luminous display panel including a first substrate, an insulating resin layer, self-luminous elements, a sealing layer, an attachment layer, and a second substrate, and the insulating resin layer includes an inner insulating sublayer and an outer insulating sublayer with a groove therebetween, the groove being provided in a peripheral region and surrounding an image display region, the attachment layer includes a peripheral sealing layer that is positioned inside a peripheral portion of the second substrate and a joining layer that is positioned in a range surrounded by the peripheral sealing layer, and when viewed in a cross section perpendicular to a main surface of the first substrate and across the groove, the peripheral sealing layer is at least partially positioned on the outer insulating sublayer, and an inner end portion of the peripheral sealing layer extends to the groove.