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

A kind of oled screen body and preparation method thereof

An electrode layer and substrate technology, applied in the field of OLED, can solve the problems of reducing the efficiency roll-off and efficiency reduction of the screen body, and achieve the effects of improving the brightness, suppressing the efficiency roll-off, and improving the uniformity of light emission.

Active Publication Date: 2018-02-13
GUAN YEOLIGHT TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, what the present invention is to solve is the problem that the efficiency of the existing OLED screen body will be greatly reduced with the increase of the current density, which is what we often call the efficiency roll-off (roll-off). The OLED screen that can achieve higher brightness adopts the method of limiting the size of the light-emitting area through an insulating layer between the first electrode layer and the organic light-emitting layer, reducing the efficiency roll-off of the screen, and adding a scattering film layer to further improve The brightness of the screen body and the uniformity of the light emission of the screen body, so as to prepare an OLED screen body with higher brightness

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
  • A kind of oled screen body and preparation method thereof
  • A kind of oled screen body and preparation method thereof
  • A kind of oled screen body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 A scattering film layer 1 is arranged on the outside of the substrate

[0031] Such as figure 1 with Figure 4 As shown, a relatively bright OLED panel provided by the present invention includes a substrate 2 and a first electrode layer 3, an organic light-emitting layer 5 and a second electrode layer 6 are stacked on the substrate 2. An insulating film layer is arranged between an electrode layer 3 (anode) and the organic light-emitting layer 5, such as Figure 4 with Figure 5 As shown, the insulating film layer is etched to form parallel or criss-cross light-emitting regions 10, the width of each light-emitting region 10 is 5nm-500um, preferably 50nm-100um, between adjacent light-emitting regions 10 The width of the insulating material layer 4 is 10nm-100um. The thickness of the insulating film layer is 5-20nm. As other implementation manners, the insulating film layer may also be Image 6 with Figure 7 As shown, its light-emitting area is a para...

Embodiment 2

[0037] Embodiment 2 A scattering film layer 1 is arranged between the substrate and the first electrode layer

[0038] The structure of a relatively bright OLED screen body provided in this embodiment is the same as that in Embodiment 1, such as figure 2 As shown, the scattering film layer 1 is arranged between the substrate 2 and the first electrode layer 3 .

[0039]The preparation method is to arrange a scattering film layer 1 on the substrate 2, coat a layer of insulating film layer on the scattering film layer 1, and the width of the insulating material layer 4 between the adjacent light-emitting regions is 10nm-100um, and then pass the electron beam Photolithography technology carries out photoetching to etch out the light-emitting region 10, the width of the light-emitting region 10 is 5nm-500um, preferably the width is 50nm-100um, and then vapor-deposits the first electrode layer 3, the organic light-emitting layer 5 and the second electrode layer 6 ( cathode), packa...

Embodiment 3

[0040] Embodiment 3 The scattering film layer 1 is respectively arranged on both sides of the substrate

[0041] The structure of a relatively bright OLED screen body provided in this embodiment is the same as that in Embodiment 1, such as image 3 As shown, the two sides of the substrate are respectively provided with scattering film layers 1, that is, one of the scattering film layers 1 is provided between the substrate 2 and the first electrode layer 3, and the other scattering film layer 1 is provided between the The side of the substrate away from the first electrode layer.

[0042] The preparation method is as follows: setting an upper scattering film layer 1 on the substrate 2, coating a layer of insulating film layer on the scattering film layer 1, and then performing photolithography to etch a light-emitting region 10 by electron beam lithography technology. The width of the light-emitting region 10 is 5nm-500um, the preferred width is 50nm-100um, the width of the in...

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 provides an OLED screen body, comprising a substrate and a first electrode layer, an organic luminescent layer and a second electrode layer superimposed on the substrate, an insulating film is arranged between the first electrode layer and the organic luminescent layer layer, the insulating film layer is etched to form parallel or criss-cross light emitting regions, and the width of each light emitting region is 5nm-500um. Between the first electrode layer and the organic light-emitting layer, the size of the light-emitting area is limited by an insulating film layer, which reduces the efficiency roll-off of the screen body, and a scattering film layer is added to further improve the brightness of the screen body and the uniformity of light emission of the screen body, thereby preparing OLED screen with higher brightness.

Description

technical field [0001] The invention relates to the technical field of OLEDs, in particular to a relatively bright OLED screen body. 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, Advantages such as planarization have been applied to a certain extent in lighting and display. Such as figure 1 As shown, a typical organic electroluminescent device generally includes a transparent substrate, a transparent anode, a cathode, and an organic functional layer disposed between the two electrodes. [0003] Organic light-emitting diodes (Organic light-emitting diodes, OLED) have the characteristics of all-solid-state, flat-panel lighting, flexibility, and transparency, and have broad application prospects in lightin...

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 Patents(China)
IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K59/00H10K50/854H10K2102/302H10K71/00
Inventor 朱映光谢静李曼张国辉胡永岚
Owner GUAN YEOLIGHT 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