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

Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device

An electroluminescent device and electroluminescent technology, applied in the field of electronics, can solve problems such as large light loss, and achieve the effect of increasing light output and improving luminous efficiency

Active Publication Date: 2017-07-28
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, for OLED light-emitting devices, especially bottom-emitting devices, there is a considerable light loss due to the coupling between SP and excitons.

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
  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device
  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device
  • Preparation method and preparation device of organic electroluminescence device and organic electroluminescence device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] Based on the analysis of the inventors of the present application above, the application proposes a method such as image 3 The preparation method of the organic electroluminescent device shown, such as image 3 shown, including:

[0058] Step 300: Adjust the grating period of the periodic grating structure, so that the wavelength of the light wave coupled by the SP is within the predetermined range of the luminescence peak of the organic electroluminescent device.

[0059] Organic electroluminescent devices can be divided into two structures according to the direction of light emission from the device: one is a bottom-emitting device, and the other is a top-emitting device.

[0060] In this step, the period of the grating can be adjusted through the process. Taking the top-emitting device as an example, the grating period can be adjusted by changing the period of the grating pattern corresponding to the mask of the metal reflective anode. For example, the luminescen...

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 discloses a preparation method and a preparation device of an organic electroluminescence device and the organic electroluminescence device. The preparation method comprises steps of adjusting the optical grating period of a periodical optical grating structure so as to allow the wavelength of light waves coupled and emitted by an SP to be in a light emitting peak preset range of the organic electroluminescence device; and according to the obtained optical grating period, arranging the periodical optical grating structure in the organic electroluminescence device. By arranging the periodical optical grating structure in the organic electroluminescence device, the light waves are coupled to the SP, so it is achieved that photon energy lost at a metal electrode interface is taken back again through the regulation of the SPP, the light output of the organic electroluminescence device like an OLED is increased and the light emitting efficiency of the organic electroluminescence device like an OLED is improved.

Description

technical field [0001] The invention relates to but not limited to electronic technology, especially to a method and device for preparing an organic electroluminescent device and an organic electroluminescent device. Background technique [0002] The light-emitting process of an organic electroluminescent device is a process of energy transfer, which converts electrical energy into light energy. In this conversion process, an organic electroluminescent device can be regarded as an injection-type light-emitting diode. If a voltage is applied across both ends of the organic electroluminescent device, the electric field generated by this voltage causes electrons to be injected from the cathode of the device into the electron transport layer, while holes are injected from the cathode to the electron transport layer. The anode (anode) of the device is injected into the hole transport layer, and the two types of carriers migrate into the light-emitting layer and combine to form ex...

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
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/822H10K50/858H10K50/813H10K71/00H10K50/16H10K50/818H10K59/10
Inventor 汪军赵策王东方周斌
Owner HEFEI XINSHENG OPTOELECTRONICS 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