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

Light conversion unit having color conversion function and application thereof

A color conversion and light conversion technology, applied in the direction of organic light-emitting device, organic light-emitting device structure, organic light-emitting device manufacturing/processing, etc. Strength, the effect of improving conversion efficiency

Inactive Publication Date: 2015-03-25
BEIJING VISIONOX TECH
View PDF1 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, what the present invention is to solve is the problem of low light conversion and light extraction efficiency of OLED devices, and a light conversion unit with color conversion function is provided. The organic electroluminescent device using the light conversion unit has a higher light conversion efficiency. Efficiency and Light Extraction Efficiency

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
  • Light conversion unit having color conversion function and application thereof
  • Light conversion unit having color conversion function and application thereof
  • Light conversion unit having color conversion function and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 Organic electroluminescent device of top emission mode

[0044] figure 2 The organic electroluminescent device shown in the top emission mode is that the reflective layer 6 is arranged on the substrate 1, and above the reflective layer 6 are a color conversion layer 5, a semi-transparent and semi-reflective conductive layer 4, and an organic functional layer 3. and the second electrode layer 2 . The light conversion unit is applied to a top-emitting white light OLED, and the top-emitting white light OLED includes a transparent electrode layer 2, a light-emitting layer 3 and figure 1 In the light conversion unit shown, the semi-transparent and semi-reflective conductive layer 4 of the light conversion unit is in contact with the light emitting layer 3 . The electroluminescence spectrum of the luminescent layer 3 contains at least blue light components, by adding yellow or red, green color conversion material CdSe / CdS quantum dots (CdS core-shell quantum dot...

Embodiment 2

[0065] Embodiment 2 The organic electroluminescence device of bottom emission mode

[0066] image 3 The organic electroluminescent device shown as the bottom emission mode is that the organic electroluminescence device is in the bottom emission mode, the second electrode layer 2 is arranged on the substrate 1, and the above second electrode layer 2 is arranged in turn. The organic functional layer 3, the transflective conductive layer 4, the color conversion layer 5 and the reflective layer 6 are described above. The electroluminescence spectrum of the luminescent layer 3 contains at least blue light components, by adding yellow or red and green color conversion material CdSe / CdS quantum dots in the color conversion layer, and adjusting the thickness of the color conversion layer to enhance the absorption of blue light components, Finally, the conversion efficiency of the blue light component can be improved, thereby adjusting the emission spectrum of the bottom emitting dev...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a light conversion unit having a color conversion function. The light conversion unit comprises a semi-permeant semi-reflecting conductive layer, a color conversion layer and a reflecting layer, wherein the semi-permeant semi-reflecting conductive layer, the color conversion layer and the reflecting layer are arranged in an overlaid mode. The invention further relates to an organic electroluminescence device with the light conversion unit. The organic electroluminescence device comprises the light conversion unit, an organic function layer and a second electrode layer, wherein the light conversion unit, the organic function layer and the second electrode layer are arranged in an overlaid mode, and the semi-permeant semi-reflecting conductive layer of the light conversion unit is close to the organic function layer. The organic electroluminescence device with the light conversion unit has high light conversion efficiency and light extraction efficiency.

Description

technical field [0001] The invention relates to the field of organic electroluminescence, in particular to a light conversion unit with color conversion function and the application of the electrode layer in organic electroluminescence devices. Background technique [0002] After nearly 30 years of development, organic electroluminescent devices (English full name Organic Light Emitting Device, referred to as OLED) as the next generation of lighting and display technology, has a wide color gamut, fast response, wide viewing angle, no pollution, high contrast , Planarization and other advantages have been applied to a certain extent in lighting and display. A typical organic electroluminescent device generally includes a transparent substrate, a transparent anode, a cathode, and an organic functional layer arranged between the two electrodes. Due to the application of phosphorescent materials, its internal quantum efficiency has almost reached the theoretical limit of 100%, ...

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): H01L51/52H01L51/50
CPCH10K50/80H10K50/85H10K50/11H10K50/856H10K50/858H10K2102/302H10K71/00
Inventor 高松刘嵩
Owner BEIJING VISIONOX TECH
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