公开(公告)号：US20190081116A1

公开(公告)日：2019-03-14

申请号：US16124194

申请日：2018-09-07

Applicant: JOLED INC.

Inventor： Yoshiaki KONDO

IPC: H01L27/32 ,  H01L51/56

Abstract: An organic EL display panel including pixel electrodes above a substrate in a matrix, column banks above the substrate at least between edges of the pixel electrodes in a row direction, extending in a column direction and side-by-side in the row direction, organic light emitting layers continuous in the column direction in gaps between the column banks, and a counter electrode layer above the organic light emitting layers. Width in the row direction of the organic light emitting layers, which is defined by width of the gaps between the column banks, changes at intervals in the column direction. For each of the light emitting layers, a minimum interval is equal to or less than a pitch in the column direction of the pixel electrodes and the changes are different from others of the light emitting layers.

公开(公告)号：US10229959B2

公开(公告)日：2019-03-12

申请号：US15672539

申请日：2017-08-09

Applicant: JOLED INC.

Inventor： Kaoru Abe ,  Takashi Osako ,  Kenichi Nendai

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/54 ,  H01L51/00

Abstract: An organic electroluminescence (EL) display panel including pixels arranged in a matrix, the organic EL display panel includes: a substrate; pixel electrode layers made of a light-reflective material and arranged on the substrate in a matrix; an insulating layer provided at least above row and column outer edges of the pixel electrode layers and above inter-regions on the substrate between the row and column outer edges; an organic functional layer provided above the pixel electrode layers; and a counter electrode layer made of a light-transmissive material and is provided above the organic functional layer, wherein the organic functional layer includes light-emitting layers that are provided in regions above the pixel electrode layers where the insulating layer is not provided, the light-emitting layers causing organic electroluminescence, and the insulating layer has an optical density of 0.5 to 1.5 in a direction of the substrate when viewed in plan.

公开(公告)号：US20190067395A1

公开(公告)日：2019-02-28

申请号：US16114228

申请日：2018-08-28

Applicant: JOLED INC.

Inventor： Tetsuro KONDO

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

Abstract: A method of manufacturing a self-luminous display panel, includes: preparing a substrate; forming banks above the substrate; detecting a bank having a defect portion; determining, with respect to the detected bank, only one of two adjacent spaces as a repair target space; forming a dam structure in the repair target space; and forming light-emitting layers. The banks are elongated and extend in a column direction, and are arranged in a row direction with spaces therebetween. The two adjacent spaces are each located between the detected bank and an adjacent bank. The dam structure is located within a predetermined distance from the defect portion, and at least partially surrounds the defect portion or is composed of a pair of dam elements disposed with the defect portion therebetween in the column direction. The light-emitting layers are formed by applying inks to the spaces between the banks. The inks contain self-luminous materials.

公开(公告)号：US20190051240A1

公开(公告)日：2019-02-14

申请号：US15991865

申请日：2018-05-29

Applicant: JOLED INC.

Inventor： Toshikuni NAKATANI ,  Hirofumi MIYASHITA

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A current limiting circuit is used in a display device which includes a display panel having pixels each of which includes a light emitting element and a panel power source which supplies an application voltage to be applied to each of the light emitting elements included in the pixels. The current limiting circuit detects a supply current supplied from the panel power source to the display panel, and reduces the application voltage when a value of the supply current detected is greater than a threshold.

公开(公告)号：US10186690B2

公开(公告)日：2019-01-22

申请号：US15202816

申请日：2016-07-06

Applicant: JOLED INC.

Inventor： Toshiaki Onimaru ,  Tetsuro Kondo

IPC: H01L29/08 ,  H01L51/56 ,  H01L51/52

Abstract: Provided is an organic EL display panel manufacturing method. The organic EL display panel includes a plurality of semiconductor elements. The method includes: forming, on a planarization film formed above the semiconductor elements, lower electrodes in one-to-one correspondence with the pixels; forming an organic layer including a light-emitting layer on the lower electrodes; forming an upper electrode on the organic layer; detecting any of the lower electrodes that includes a defect; and forming, on the planarization film or any of the lower electrodes that includes a defect, a protrusion for connecting the lower electrode and the upper electrode.

公开(公告)号：US20190013364A1

公开(公告)日：2019-01-10

申请号：US16027181

申请日：2018-07-03

Applicant: JOLED INC.

Inventor： Kazuhiro YOKOTA

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

Abstract: An organic electroluminescent element includes, in order, an anode, an organic layer including a light-emitting layer, and a cathode. The organic layer further includes a first organic layer that is provided between the light-emitting layer and the anode, and includes a hole transport layer. The hole transport layer includes a material having an absorption coefficient of 0.01 or greater and 0.06 or less. The light-emitting layer has a light-emitting center receding from a first interface of the light-emitting layer by a thickness greater than 0 and equal to or less than 0.4, where the light-emitting layer has a thickness of 1. The first interface is adjacent to the anode. The organic electroluminescent element further includes a microcavity structure in which the position of the interface is a resonance point.

公开(公告)号：US20180375049A1

公开(公告)日：2018-12-27

申请号：US16011836

申请日：2018-06-19

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/52 ,  G09G3/3258

CPC classification number: H01L51/5024 ,  G09G3/3258 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5234

Abstract: An organic electroluminescent element includes, in order, a first electrode, an organic light-emitting layer, a metal thin film including a metal or a metal alloy, an organic electron transport layer doped with a metal, and a second electrode. The metal in the metal thin film is identical to the metal doped in the organic electron transport layer. The metal alloy in the metal thin film includes a metal identical to the metal doped in the organic electron transport layer.

公开(公告)号：US10163789B2

公开(公告)日：2018-12-25

申请号：US15718619

申请日：2017-09-28

Applicant: JOLED INC.

Inventor： Shunsuke Itakura

IPC: H01L23/34 ,  H01L23/528 ,  H01L27/118 ,  H01L25/16 ,  H01L23/00 ,  G09G5/10 ,  H01L49/02 ,  H01L23/50 ,  H01L25/18

Abstract: Provided is a semiconductor device that includes: an integrated circuit (IC) chip including a terminal array that is a matrix of terminals arranged in at least seven rows and at least seven columns, the terminals including a reference terminal to which a reference voltage is applied; a capacitor electrically connected to the reference terminal; and a substrate including one main surface as a mounting surface on which the IC chip and the capacitor are mounted. The IC chip is an application specific integrated circuit (ASIC) chip or a field-programmable gate array (FPGA) chip. The reference terminal is disposed at a position within three rows or three columns from an outer edge of the terminal array.

公开(公告)号：US20180366680A1

公开(公告)日：2018-12-20

申请号：US16006908

申请日：2018-06-13

Applicant: JOLED INC.

Inventor： Akifumi OKIGAWA ,  Kenji HARADA ,  Keiji HORIKAWA ,  Masaya TERAI

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

CPC classification number: H01L51/5246 ,  H01L27/124 ,  H01L27/3276 ,  H01L51/0097 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5338

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：US10158099B2

公开(公告)日：2018-12-18

申请号：US15501705

申请日：2015-07-31

Applicant: JOLED INC. ,  SUMITOMO CHEMICAL COMPANY, LIMITED

Inventor： Hirotaka Nanno ,  Masaki Nishimura ,  Masashi Komatsu ,  Sadamu Yoshida

IPC: H01L21/00 ,  H01L51/56 ,  H01L51/00 ,  H01L27/32 ,  B05B12/08 ,  B05B12/00 ,  B05B15/50 ,  H01L51/50

Abstract: Organic light-emitting device manufacturing method performed by using a manufacturing apparatus placed where light from outside is blocked and a lighting device emitting light constituted of light components with wavelengths of 500 nm or longer is placed. The manufacturing apparatus includes a main body having an ejector ejecting ink containing organic light-emitting material and a light-transmissive tube forming at least part of a transport path connecting a tank containing the ink and the ejector. The method includes: removing the ink inside the transport path when a total exposure amount ET (lux×hours) satisfies ET≥α×17500 where α is a constant satisfying α≥1. ET is a product of E denoting light amount (lux) from the lighting device to which the tube is exposed and T denoting time amount (hours) over which the tube is exposed to the light from the lighting device.