公开(公告)号：US10692946B2

公开(公告)日：2020-06-23

申请号：US16302666

申请日：2017-05-17

Applicant: JOLED INC.

Inventor： Jiro Yamada ,  Kazuma Teramoto ,  Kenichi Nendai ,  Kaoru Abe ,  Hideki Kobayashi ,  Hirotaka Nanno

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

Abstract: An organic electroluminescence (EL) display panel includes pixels arranged in a matrix of rows and columns, and includes: a substrate; pixel electrode layers that are arranged on the substrate in the matrix; an insulating layer that is provided above the substrate and the pixel electrode layers, and has elongated openings and a grooved portion for each of the pixels, the openings extending in a column direction and being arranged in a row direction, the grooved portion having an upper opening and a bottom and being communicated with at least one of the openings in plan view; organic functional layers that are provided above the pixel electrode layers, and include light emitting layers in which organic electroluminescence occurs in the openings; and a light-transmissive counter electrode layer that is provided above the organic functional layers. Cross-sectional profiles of the openings taken along the row direction are uniform in the column direction.

公开(公告)号：US09865816B2

公开(公告)日：2018-01-09

申请号：US15125403

申请日：2015-02-26

Applicant: JOLED INC.

Inventor： Masakazu Takata ,  Hirotaka Nanno

IPC: H01L21/00 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L51/0007 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/56 ,  H01L2251/55

Abstract: A solution contains a functional material for constituting a function layer, and a solvent. The solvent contains a high-boiling-point solvent composed of one or more solvent components having a boiling point of not less than 200° C. The high-boiling-point solvent has a viscosity of from 13 mPa·s to 25 mPa·s, inclusive, and a surface tension of from 33 mN/m to 37 mN/m, inclusive.

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.