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Encapsulating composition and encapsulating film with light diffusing function, and organic light-emitting device

An organic light-emitting device and packaging film technology, which is applied to organic semiconductor devices, household appliances, chemical instruments and methods, etc., can solve problems such as nozzle clogging, and achieve the effects of preventing clogging, increasing degrees of freedom, and shortening process time.

Active Publication Date: 2021-09-07
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In addition, another object of the present invention is to provide an encapsulating composition suitable for inkjet printing, which can solve the clogging problem of the head nozzle of an inkjet printing machine, which has a excellent stability

Method used

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  • Encapsulating composition and encapsulating film with light diffusing function, and organic light-emitting device
  • Encapsulating composition and encapsulating film with light diffusing function, and organic light-emitting device
  • Encapsulating composition and encapsulating film with light diffusing function, and organic light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0076] In order to confirm that the light diffusion function is enhanced by using organic particles instead of inorganic particles, 10 wt.% polystyrene (3 μm, 0.96~1.04 g / cm2) added as organic particles was used. 3 ), instead of the silica (3μm, 2.1~2.6g / cm2) added as inorganic particles in Comparative Example 1 3 ), except that, according to the same procedure as Comparative Example 1, an encapsulating composition with light diffusion function was prepared.

example 2

[0078] In Example 2, except that 20 wt.% of polystyrene particles were added as organic particles, an encapsulating composition having a light-diffusing function was prepared according to the same procedure as Example 1.

example 3

[0080] In Example 3, in order to increase the strength of the cured film, trimethylolpropane triacrylate (Trimethylolpropane triacrylate) was used as a multifunctional acrylate monomer, and 3-phenoxyphenyl methyl ester ((3-phenoxyphenyl )methyl ester) was used as a monofunctional acrylate monomer, and an encapsulating composition with a light-diffusing function was prepared according to the same procedure as Example 1.

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Abstract

The invention provides an encapsulation composition for inkjet printing with light diffusion function, an encapsulation film and an organic light-emitting device using the encapsulation composition. The encapsulating composition for inkjet printing can effectively prevent moisture or oxygen, and can provide sufficient light-diffusing effect without an additional separate layer, and due to the advantage of diffusivity, has Excellent stability, thus preventing clogging of head nozzles of inkjet printers.

Description

technical field [0001] The present invention relates to an encapsulation composition, an encapsulation film comprising the encapsulation composition, and an organic light-emitting diode device, and more particularly, relates to an encapsulation composition with a light-diffusing function, which can reduce the size of an organic light-emitting diode. thickness, and remove the light diffusion layer to reduce process time. Background technique [0002] Organic Light Emitting Diodes (OLEDs) are next-generation display devices that use organic compounds for self-luminescence and have various advantages such as fast response speeds and do not require a backlight that may degrade color sensitivity due to self-luminescence . Accordingly, OLEDs are widely used from large displays for televisions to small displays for mobile devices. [0003] The OLED display device is manufactured on a transparent substrate, and has a cross-sectional structure in which a cathode film, an organic th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52C09K19/54C09D11/30
CPCH10K71/135H10K85/10H10K50/854H10K2102/331H10K50/844
Inventor 郑美惠金石基尹景根
Owner KOLON IND INC
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