Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Organic light emission diode and preparation method thereof

An electroluminescent device and electroluminescent technology, which are applied in the fields of electro-solid devices, semiconductor/solid-state device manufacturing, electrical components, etc., and can solve the problems of short service life of OLED devices.

Inactive Publication Date: 2015-06-03
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an organic electroluminescent device, which is used to solve the problem of short service life of OLED devices in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic light emission diode and preparation method thereof
  • Organic light emission diode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The structure of the organic electroluminescent device of this embodiment is: PET substrate / ITO / NPB / Ir(MDQ) 2 (acac): CBP(10:100) / Bphen / Al / Li 2 CO 3 : Alq 3 (20:100) / Al / Si 3 N 4 .

[0060] The manufacturing method of the organic electroluminescent device of this embodiment includes the following steps:

[0061] A PET substrate 110 is provided, which is washed and dried for later use.

[0062] A layer of ITO conductive film 120 is prepared on one surface of the PET substrate 110, that is, the anode layer, and is cleaned after completion. The sheet resistance of the anode layer is 5Ω / □.

[0063] A layer of organic electroluminescence unit 130 is prepared on the surface of the ITO conductive film 120 by vacuum evaporation technology:

[0064] The vacuum degree is 1×10 -5 In the Pa vacuum coating system, a hole transport layer with a thickness of 20nm is prepared on the surface of the anode layer, the material used is NPB, and the evaporation rate of NPB is 0.1nm / s;

[0065] The vacuu...

Embodiment 2

[0073] The structure of the organic electroluminescent device of this embodiment is: PET substrate / ITO / MeO-TPD / DCJTB:Alq 3 (5:100) / TPBi / Ag / Cs 2 CO 3 :Bphen(50:100) / Ag / Si 3 N 4 .

[0074] The manufacturing method of the organic electroluminescent device 100 of this embodiment includes the following steps:

[0075] A PET substrate 110 is provided, which is washed and dried for later use.

[0076] A layer of ITO conductive film 120 is prepared on one surface of the PET substrate 110, that is, the anode layer, and is cleaned after completion. The sheet resistance of the anode layer is 100Ω / □.

[0077] A layer of organic electroluminescence unit 130 is prepared on the surface of the ITO conductive film 120 by vacuum evaporation technology:

[0078] The vacuum degree is 1×10 -3 In the Pa vacuum coating system, a hole transport layer is prepared on the surface of the anode layer, the material used is MeO-TPD, the thickness is 60nm, and the evaporation rate is 1nm / s;

[0079] The vacuum degree i...

Embodiment 3

[0087] The structure of the organic electroluminescent device of this embodiment is: PET substrate / ITO / TPD / FIrpic: CBP(15:100) / BCP / Ag-Mg / CsN 3 :TPBi(40:100) / Ag-Mg / Si 3 N 4 .

[0088] The manufacturing method of the organic electroluminescent device 100 of this embodiment includes the following steps:

[0089] A PET substrate 110 is provided, which is washed and dried for later use.

[0090] A layer of ITO conductive film 120 is prepared on one surface of the PET substrate 110, that is, the anode layer, and is cleaned after completion. The sheet resistance of the anode layer is 50Ω / □.

[0091] A layer of organic electroluminescence unit 130 is prepared on the surface of the ITO conductive film 120 by vacuum evaporation technology:

[0092] The vacuum degree is 1×10 -3 In the Pa vacuum coating system, a hole transport layer is prepared on the surface of the anode layer, the material used is TPD, the thickness is 50nm, and the evaporation rate of TPD is 1nm / s;

[0093] The vacuum degree is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an organic light emission diode, which comprises a substrate, an anode layer, an organic light emission unit and a cathode layer covered with a packaging film, wherein the substrate, the anode layer, the organic light emission unit and the cathode layer are successively laminated; the organic light emission unit comprises a hole transmission layer, a light emission layer and an electron transmission layer, wherein the hole transmission layer, the light emission layer and the electron transmission layer are successively laminated on the surface of the anode layer. Since the cathode layer of the organic light emission diode adopts a lamination structure characterized in that a metal layer is doped with organic layers, the thickness of a metal film of the cathode layer is lowered, and the toughness of the metal film is improved. In addition, a plurality of organic layers are arranged, internal stress generated by the metal film in a flexure process is dispersed, the metal film is prevented from generating cracks or pores, the flexural property of the whole diode is improved, and the service life of the organic light emission diode is prolonged. In addition, the invention also provides a preparation method for the organic light emission diode.

Description

Technical field [0001] The present invention relates to the field of organic electroluminescence devices, in particular to an organic electroluminescence device and a preparation method thereof. Background technique [0002] Organic Light Emission Diode (OLED, Organic Light Emission Diode) has the characteristics of high brightness, wide range of material selection, low driving voltage, fully cured active light emission, etc. It also has the advantages of high definition, wide viewing angle, and fast response speed. A highly potential display technology and light source, in line with the development trend of mobile communication and information display in the information age, and the requirements of green lighting technology, is currently the focus of many researchers at home and abroad. [0003] The advantage of using a flexible OLED light-emitting device is that it has flexibility and portability, but there are also some problems with OLED light-emitting devices. For example, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/54H01L51/56
Inventor 周明杰冯小明张娟娟王平
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com