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Method of producing laminated type organic electroluminescent element and display apparatus

An electroluminescent element and a manufacturing method technology, which can be applied to electroluminescent light sources, electrical components, devices for coating liquid on surfaces, etc., can solve problems such as low production efficiency, and achieve low power consumption, low price, and durability. excellent effect

Inactive Publication Date: 2005-09-07
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the charge generation layer of the organic EL element described in this document is formed by methods such as resistance heating evaporation, electron beam evaporation, laser beam evaporation, sputtering, etc., so there is a problem of low production efficiency.

Method used

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  • Method of producing laminated type organic electroluminescent element and display apparatus
  • Method of producing laminated type organic electroluminescent element and display apparatus
  • Method of producing laminated type organic electroluminescent element and display apparatus

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Embodiment Construction

[0048] The method for manufacturing the multilayer organic EL element and the display device of the present invention will be described in detail below.

[0049] 1) Manufacturing method of multilayer organic EL element

[0050] The manufacturing method of the laminated organic EL element of the present invention comprises at least one light-emitting layer between the opposing transparent anode electrodes and cathode electrodes, and has a plurality of light-emitting units divided by at least one charge generation layer. A method of manufacturing a stacked organic electroluminescent device, wherein at least one of the charge generation layers is formed using a discharge device.

[0051] In the present invention, the "light-emitting unit" means a layered structure including at least one light-emitting layer, and among the constituent elements of a conventional organic EL element, other than the anode electrode and the cathode electrode. Examples of the "light-emitting unit" incl...

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Abstract

The objective of the invention is to provide a manufacturing method with a high production rate of an organic El element made by each light-emitting layer being separated by a charge generation layer at least made of one layer in a laminated organic EL element having at least one layer of light-emitting unit between an anode and a cathode facing each other. In the manufacturing method of a laminated organic electroluminescent element including at least one light-emitting layer between a transparent anode and a cathode facing each other and a plurality of light-emitting units separated by charge generation layers made of at least one layer, at least one of the charge generation layers is formed using a discharge device, and a display device is equipped with the laminated type organic EL elements obtained by this manufacturing method.

Description

technical field [0001] The present invention relates to a method for manufacturing an organic electroluminescence element (hereinafter referred to as "organic EL element") used in a planar light source and a display element. More specifically, it relates to a stacked organic EL element that includes at least one light-emitting layer between opposing transparent anode electrodes and cathode electrodes, and has a plurality of charge-generating layers formed of at least one layer that are divided into light-emitting units. A manufacturing method, and a display device having a stacked organic EL element obtained by the manufacturing method. technical background [0002] In recent years, attention has been paid to realizing a large-area display device driven at low voltage for an organic EL element having a light-emitting layer made of an organic compound between opposing anode electrodes and cathode electrodes (for example, Non-Patent Document 1). However, conventional organic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/10B05D1/26B05D5/06H01L51/50H05B33/12H05B33/14H05B33/22
CPCH01L27/3209H01L51/0059H01L51/5278H01L27/3246H10K59/32H10K59/122H10K85/631H10K50/19H05B33/10
Inventor 石田纮平
Owner SEIKO EPSON CORP
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