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

An organic electroluminescent device

An electroluminescent device, an organic technology, applied in the direction of electric solid-state devices, electrical components, semiconductor devices, etc., can solve the problems of low luminous efficiency of blue materials and difficulty in meeting actual needs, and achieve the effect of increased brightness and reduced power consumption

Inactive Publication Date: 2011-12-07
KUNSHAN VISIONOX DISPLAY TECH +2
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing preparation, the luminous efficiency of the blue material of the white light OLED is low, and most of the obtained white light OLED has a warmer tone, which is difficult to meet the actual demand

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
  • An organic electroluminescent device
  • An organic electroluminescent device
  • An organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The device structure is:

[0045] ITO / HIL (850 ) / NPB(200 ) / BH:BD(90 , 4%) / RH:RD(300 , 2%) / Alq3(200 ) / LiF(5 ) / Al(1500 )

[0046] The process steps are:

[0047] (1) The glass substrate 01 is cleaned by ultrasound with boiling detergent and deionized water, and dried under an infrared lamp.

[0048] (2) Evaporate a layer of ITO on the glass as the anode 02, and the film thickness is 180nm;

[0049] (3) Evaporation of MTDATA (4,4',4"-tris(3-methylphenylaniline) triphenylamine) and F 4 TCNQ is used as HIL with a film thickness of 85nm. The mass percentage of F4TCNQ doped in MTDATA is 4%.

[0050] (4) Place the above-mentioned glass substrate with the anode in a vacuum chamber and evacuate to 1×10 -5 Pa, continue to vapor-deposit a layer of NPB film on the above-mentioned anode layer film as the hole transport layer 03, the rate is 0.1nm / s, and the vapor-deposited film thickness is 20nm;

[0051] (5) First use the method of double-source co-evaporation to...

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 present invention proposes a cool-toned white OLED with a polarizer. The light emitted by the white OLED is adjusted by the polarizer, which increases the light transmittance of the cool-toned light in the superimposed light, suppresses the light transmittance of the warm-toned light, and achieves overall The effect of cool white light. Compared with the existing cool-toned white light solution, the present invention improves brightness by 14 nits, but reduces power consumption.

Description

technical field [0001] The invention relates to an organic electroluminescent device, in particular to a device structure capable of improving brightness, prolonging life and adjusting luminescent tone. Background technique [0002] Organic electroluminescence refers to the use of an organic material layer as the light-emitting layer, with a cathode layer and an anode layer on both sides of the light-emitting layer, and a voltage is applied between the two electrodes. When a current passes through the light-emitting layer, the organic material in the light-emitting layer will emit light. . According to this principle, people have made an organic electroluminescent device (Organic Light Emitting Diode, hereinafter referred to as OLED). Compared with traditional liquid crystal display devices, OLED has the advantages of thin body, simple preparation process, full curing of luminescent materials, and flexible devices, which has attracted widespread attention. More and more OLE...

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): H01L51/50H01L51/52H01L51/56
Inventor 邱勇彭兆基
Owner KUNSHAN VISIONOX DISPLAY 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