Unlock instant, AI-driven research and patent intelligence for your innovation.

Flexible organic light-emitting device and preparation method thereof

An electroluminescent device, an organic technology, applied in the direction of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems such as the difficulty of attaching the outer film, and achieve the effect of simplifying the preparation and reducing the cost

Active Publication Date: 2020-10-09
HENAN INST OF ENG
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When facing flexible OLED devices, it is particularly difficult to attach the outer film.

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
  • Flexible organic light-emitting device and preparation method thereof
  • Flexible organic light-emitting device and preparation method thereof
  • Flexible organic light-emitting device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of the flexible organic electroluminescence device of this embodiment is:

[0032] Step 1: Refer to figure 1 , providing carrier substrate, OCA glue and flexible substrate (flexible substrate). Here, the carrier substrate is made of glass, ceramics or metal, with a thickness between 0.1-0.7 mm. In this embodiment, the carrier substrate is preferably made of glass, preferably with a thickness of 0.5 mm.

[0033] Step 2: Refer to figure 1 , forming a patterned OCA glue on the carrier substrate. There are two types of patterned OCA glue structures and corresponding preparation methods:

[0034] Method 1: Refer to image 3 , using light scattering particles of inorganic nanoparticles, the inorganic nanoparticles can be one or more combinations of silicon oxide, titanium oxide, zinc oxide, and cobalt oxide, and the particle size of the inorganic nanoparticles is between 100nm and 1000nm; Disperse the light-scattering particles evenly in the OCA gl...

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
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flexible organic light-emitting device and a preparation method thereof. The preparation method comprises the following steps: (1) forming a layer of a patterned OCA adhesiveon a carrier substrate; (2) forming a patterned flexible substrate on the carrier substrate and the OCA adhesive; (3) forming an organic light-emitting device on the flexible substrate; and (4) stripping the carrier substrate. The flexible device prepared by the method does not need to be degummed, and has a light extraction effect, so a process is simplified, and the performance of the device isimproved.

Description

technical field [0001] The invention relates to the technical field of electroluminescence, in particular to a flexible organic electroluminescence device and a preparation method thereof. Background technique [0002] At present, the commonly used flexible OLED device preparation method in the industry is to first attach the flexible substrate of the device on the carrier glass, and then rely on the glass substrate of the hard screen to carry out the preparation process of the OLED device. The flexible OLED substrate is peeled off, and then debonded to obtain a complete flexible OLED device. [0003] On the other hand, due to the problem of the refractive index of each interface in the OLED device, most of the light generated by the device is confined in the device and cannot be used. The industry usually adopts the method of light extraction to improve the light extraction efficiency. Commonly used methods include Take out and take out. The commonly used technical means ...

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): H01L51/56H01L51/52H01L51/00H10K99/00
CPCH10K71/80H10K77/111H10K50/85H10K50/854H10K71/00Y02E10/549
Inventor 陈铃李栋栋刘少辉于倩倩
Owner HENAN INST OF ENG